Merge remote-tracking branch 'refs/remotes/raysan5/develop' into develop

examples/core_3d_camera_first_person.c

@@ -47,7 +47,7 @@ int main()
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdateCamera(&camera);                  // Update camera and player position
+        UpdateCamera(&camera);                  // Update camera
         //----------------------------------------------------------------------------------
 
         // Draw

examples/core_3d_camera_free.c

@@ -39,7 +39,7 @@ int main()
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdateCamera(&camera);          // Update internal camera and our camera
+        UpdateCamera(&camera);          // Update camera
         
         if (IsKeyDown('Z')) camera.target = (Vector3){ 0.0f, 0.0f, 0.0f };
         //----------------------------------------------------------------------------------

examples/core_3d_picking.c

@@ -22,7 +22,7 @@ int main()
 
     // Define the camera to look into our 3d world
     Camera camera;
-    camera.position = (Vector3){ 0.0f, 10.0f, 10.0f };  // Camera position
+    camera.position = (Vector3){ 10.0f, 10.0f, 10.0f }; // Camera position
     camera.target = (Vector3){ 0.0f, 0.0f, 0.0f };      // Camera looking at point
     camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };          // Camera up vector (rotation towards target)
     camera.fovy = 45.0f;                                // Camera field-of-view Y
@@ -34,9 +34,7 @@ int main()
     
     bool collision = false;
     
-    SetCameraMode(CAMERA_FREE);         // Set a free camera mode
-    SetCameraPosition(camera.position); // Set internal camera position to match our camera position
-    SetCameraFovy(camera.fovy);         // Set internal camera field-of-view Y
+    SetCameraMode(camera, CAMERA_FREE); // Set a free camera mode
 
     SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
@@ -46,7 +44,7 @@ int main()
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdateCamera(&camera);          // Update internal camera and our camera
+        UpdateCamera(&camera);          // Update camera
         
         if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
         {

examples/core_oculus_rift.c

@@ -30,13 +30,15 @@ int main()
     
     // Define the camera to look into our 3d world
     Camera camera;
-    camera.position = (Vector3){ 5.0f, 5.0f, 5.0f };    // Camera position
-    camera.target = (Vector3){ 0.0f, 0.0f, 0.0f };      // Camera looking at point
+    camera.position = (Vector3){ 5.0f, 2.0f, 5.0f };    // Camera position
+    camera.target = (Vector3){ 0.0f, 2.0f, 0.0f };      // Camera looking at point
     camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };          // Camera up vector (rotation towards target)
     camera.fovy = 60.0f;                                // Camera field-of-view Y
     
     Vector3 cubePosition = { 0.0f, 0.0f, 0.0f };
     
+    SetCameraMode(camera, CAMERA_FIRST_PERSON);         // Set first person camera mode
+    
     SetTargetFPS(90);                   // Set our game to run at 90 frames-per-second
     //--------------------------------------------------------------------------------------
 
@@ -45,9 +47,10 @@ int main()
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdateVrTracking();
+        if (IsVrSimulator()) UpdateCamera(&camera);     // Update camera (simulator mode)
+        else UpdateVrTracking(&camera);                 // Update camera with device tracking data
         
-        if (IsKeyPressed(KEY_SPACE)) ToggleVrMode();
+        if (IsKeyPressed(KEY_SPACE)) ToggleVrMode();    // Toggle VR mode
         //----------------------------------------------------------------------------------
 
         // Draw
@@ -61,7 +64,7 @@ int main()
                 DrawCube(cubePosition, 2.0f, 2.0f, 2.0f, RED);
                 DrawCubeWires(cubePosition, 2.0f, 2.0f, 2.0f, MAROON);
 
-                DrawGrid(10, 1.0f);
+                DrawGrid(40, 1.0f);
 
             End3dMode();
 

examples/core_world_screen.c

@@ -21,16 +21,13 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera free");
 
     // Define the camera to look into our 3d world
-    Camera camera = {{ 0.0f, 10.0f, 10.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+    Camera camera = {{ 10.0f, 10.0f, 10.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
 
     Vector3 cubePosition = { 0.0f, 0.0f, 0.0f };
     
     Vector2 cubeScreenPosition;
     
-    SetCameraMode(CAMERA_FREE);         // Set a free camera mode
-    SetCameraPosition(camera.position); // Set internal camera position to match our camera position
-    SetCameraTarget(camera.target);     // Set internal camera target to match our camera target
-    SetCameraFovy(camera.fovy);         // Set internal camera field-of-view Y
+    SetCameraMode(camera, CAMERA_FREE); // Set a free camera mode
 
     SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
@@ -40,7 +37,7 @@ int main()
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdateCamera(&camera);          // Update internal camera and our camera
+        UpdateCamera(&camera);          // Update camera
         
         // Calculate cube screen space position (with a little offset to be in top)
         cubeScreenPosition = GetWorldToScreen((Vector3){cubePosition.x, cubePosition.y + 2.5f, cubePosition.z}, camera);

examples/models_billboard.c

@@ -26,20 +26,17 @@ int main()
     Texture2D bill = LoadTexture("resources/billboard.png");     // Our texture billboard
     Vector3 billPosition = { 0.0f, 2.0f, 0.0f };                 // Position where draw billboard
     
-    SetCameraMode(CAMERA_ORBITAL);      // Set an orbital camera mode
-    SetCameraPosition(camera.position); // Set internal camera position to match our camera position
-    SetCameraTarget(camera.target);     // Set internal camera target to match our camera target
-    SetCameraFovy(camera.fovy);         // Set internal camera field-of-view Y
+    SetCameraMode(camera, CAMERA_ORBITAL);  // Set an orbital camera mode
 
-    SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
+    SetTargetFPS(60);                       // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
 
     // Main game loop
-    while (!WindowShouldClose())        // Detect window close button or ESC key
+    while (!WindowShouldClose())            // Detect window close button or ESC key
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdateCamera(&camera);          // Update internal camera and our camera
+        UpdateCamera(&camera);              // Update camera
         //----------------------------------------------------------------------------------
 
         // Draw

examples/models_cubicmap.c

@@ -45,7 +45,7 @@ int main()
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdateCamera(&camera);              // Update internal camera and our camera
+        UpdateCamera(&camera);              // Update camera
         //----------------------------------------------------------------------------------
 
         // Draw

examples/models_heightmap.c

@@ -29,20 +29,19 @@ int main()
     map.material.texDiffuse = texture;                          // Set map diffuse texture
     Vector3 mapPosition = { -8.0f, 0.0f, -8.0f };               // Set model position (depends on model scaling!)
 
-    UnloadImage(image);                 // Unload heightmap image from RAM, already uploaded to VRAM
+    UnloadImage(image);                     // Unload heightmap image from RAM, already uploaded to VRAM
     
-    SetCameraMode(CAMERA_ORBITAL);      // Set an orbital camera mode
-    SetCameraPosition(camera.position); // Set internal camera position to match our custom camera position
+    SetCameraMode(camera, CAMERA_ORBITAL);  // Set an orbital camera mode
 
-    SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
+    SetTargetFPS(60);                       // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
 
     // Main game loop
-    while (!WindowShouldClose())        // Detect window close button or ESC key
+    while (!WindowShouldClose())            // Detect window close button or ESC key
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdateCamera(&camera);          // Update internal camera and our camera
+        UpdateCamera(&camera);              // Update camera
         //----------------------------------------------------------------------------------
 
         // Draw

examples/resources/shaders/glsl100/standard.fs

@@ -38,7 +38,6 @@ uniform Light lights[maxLights];
 
 vec3 ComputeLightPoint(Light l, vec3 n, vec3 v, float s)
 {
-/*
     vec3 surfacePos = vec3(modelMatrix*vec4(fragPosition, 1.0));
     vec3 surfaceToLight = l.position - surfacePos;
     
@@ -51,17 +50,14 @@ vec3 ComputeLightPoint(Light l, vec3 n, vec3 v, float s)
     if (diff > 0.0)
     {
         vec3 h = normalize(-l.direction + v);
-        spec = pow(dot(n, h), 3.0 + glossiness)*s;
+        spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
     }
     
     return (diff*l.diffuse.rgb + spec*colSpecular.rgb);
-*/
-    return vec3(0.5);
 }
 
 vec3 ComputeLightDirectional(Light l, vec3 n, vec3 v, float s)
 {
-/*
     vec3 lightDir = normalize(-l.direction);
     
     // Diffuse shading
@@ -72,18 +68,15 @@ vec3 ComputeLightDirectional(Light l, vec3 n, vec3 v, float s)
     if (diff > 0.0)
     {
         vec3 h = normalize(lightDir + v);
-        spec = pow(dot(n, h), 3.0 + glossiness)*s;
+        spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
     }
     
     // Combine results
     return (diff*l.intensity*l.diffuse.rgb + spec*colSpecular.rgb);
-*/
-    return vec3(0.5);
 }
 
 vec3 ComputeLightSpot(Light l, vec3 n, vec3 v, float s)
 {
-/*
     vec3 surfacePos = vec3(modelMatrix*vec4(fragPosition, 1));
     vec3 lightToSurface = normalize(surfacePos - l.position);
     vec3 lightDir = normalize(-l.direction);
@@ -108,12 +101,10 @@ vec3 ComputeLightSpot(Light l, vec3 n, vec3 v, float s)
     if (diffAttenuation > 0.0)
     {
         vec3 h = normalize(lightDir + v);
-        spec = pow(dot(n, h), 3.0 + glossiness)*s;
+        spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
     }
     
     return (falloff*(diffAttenuation*l.diffuse.rgb + spec*colSpecular.rgb));
-*/
-    return vec3(0.5);
 }
 
 void main()
@@ -140,7 +131,7 @@ void main()
     
     // Calculate specular texture color fetching or set to maximum specular value by default
     float spec = 1.0;
-    if (useSpecular == 1) spec *= normalize(texture2D(texture2, fragTexCoord).r);
+    if (useSpecular == 1) spec = texture2D(texture2, fragTexCoord).r;
     
     for (int i = 0; i < maxLights; i++)
     {

examples/resources/shaders/glsl330/standard.fs

@@ -50,7 +50,7 @@ vec3 ComputeLightPoint(Light l, vec3 n, vec3 v, float s)
     if (diff > 0.0)
     {
         vec3 h = normalize(-l.direction + v);
-        spec = pow(dot(n, h), 3.0 + glossiness)*s;
+        spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
     }
     
     return (diff*l.diffuse.rgb + spec*colSpecular.rgb);
@@ -68,7 +68,7 @@ vec3 ComputeLightDirectional(Light l, vec3 n, vec3 v, float s)
     if (diff > 0.0)
     {
         vec3 h = normalize(lightDir + v);
-        spec = pow(dot(n, h), 3.0 + glossiness)*s;
+        spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
     }
     
     // Combine results
@@ -101,7 +101,7 @@ vec3 ComputeLightSpot(Light l, vec3 n, vec3 v, float s)
     if (diffAttenuation > 0.0)
     {
         vec3 h = normalize(lightDir + v);
-        spec = pow(dot(n, h), 3.0 + glossiness)*s;
+        spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
     }
     
     return (falloff*(diffAttenuation*l.diffuse.rgb + spec*colSpecular.rgb));
@@ -131,7 +131,7 @@ void main()
     
     // Calculate specular texture color fetching or set to maximum specular value by default
     float spec = 1.0;
-    if (useSpecular == 1) spec *= normalize(texture(texture2, fragTexCoord).r);
+    if (useSpecular == 1) spec = texture(texture2, fragTexCoord).r;
     
     for (int i = 0; i < maxLights; i++)
     {

examples/shaders_custom_uniform.c

@@ -51,9 +51,7 @@ int main()
     RenderTexture2D target = LoadRenderTexture(screenWidth, screenHeight);
     
     // Setup orbital camera
-    SetCameraMode(CAMERA_ORBITAL);          // Set an orbital camera mode
-    SetCameraPosition(camera.position);     // Set internal camera position to match our camera position
-    SetCameraTarget(camera.target);         // Set internal camera target to match our camera target
+    SetCameraMode(camera, CAMERA_ORBITAL);  // Set an orbital camera mode
 
     SetTargetFPS(60);                       // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
@@ -71,7 +69,7 @@ int main()
         // Send new value to the shader to be used on drawing
         SetShaderValue(shader, swirlCenterLoc, swirlCenter, 2);
         
-        UpdateCamera(&camera);              // Update internal camera and our camera
+        UpdateCamera(&camera);              // Update camera
         //----------------------------------------------------------------------------------
 
         // Draw

examples/shaders_model_shader.c

@@ -42,7 +42,7 @@ int main()
     
     Vector3 position = { 0.0f, 0.0f, 0.0f };    // Set model position
     
-    SetCameraMode(camera, CAMERA_ORBITAL);      // Set an orbital camera mode
+    SetCameraMode(camera, CAMERA_FREE);      // Set an orbital camera mode
 
     SetTargetFPS(60);                           // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
@@ -70,6 +70,9 @@ int main()
             End3dMode();
             
             DrawText("(c) Dwarf 3D model by David Moreno", screenWidth - 200, screenHeight - 20, 10, GRAY);
+            
+            DrawText(FormatText("Camera position: (%.2f, %.2f, %.2f)", camera.position.x, camera.position.y, camera.position.z), 600, 20, 10, BLACK);
+            DrawText(FormatText("Camera target: (%.2f, %.2f, %.2f)", camera.target.x, camera.target.y, camera.target.z), 600, 40, 10, GRAY);
 
             DrawFPS(10, 10);
 

examples/shaders_postprocessing.c

@@ -45,9 +45,7 @@ int main()
     RenderTexture2D target = LoadRenderTexture(screenWidth, screenHeight);
     
     // Setup orbital camera
-    SetCameraMode(CAMERA_ORBITAL);          // Set an orbital camera mode
-    SetCameraPosition(camera.position);     // Set internal camera position to match our camera position
-    SetCameraTarget(camera.target);         // Set internal camera target to match our camera target
+    SetCameraMode(camera, CAMERA_ORBITAL);  // Set an orbital camera mode
 
     SetTargetFPS(60);                       // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
@@ -57,7 +55,7 @@ int main()
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdateCamera(&camera);              // Update internal camera and our camera
+        UpdateCamera(&camera);              // Update camera
         //----------------------------------------------------------------------------------
 
         // Draw
@@ -67,7 +65,7 @@ int main()
             ClearBackground(RAYWHITE);
 
             BeginTextureMode(target);   // Enable drawing to texture
-
+            
                 Begin3dMode(camera);
 
                     DrawModel(dwarf, position, 2.0f, WHITE);   // Draw 3d model with texture

examples/shaders_standard_lighting.c

@@ -64,9 +64,7 @@ int main()
     pointLight->radius = 3.0f;
 
     // Setup orbital camera
-    SetCameraMode(CAMERA_ORBITAL);          // Set an orbital camera mode
-    SetCameraPosition(camera.position);     // Set internal camera position to match our camera position
-    SetCameraTarget(camera.target);         // Set internal camera target to match our camera target
+    SetCameraMode(camera, CAMERA_ORBITAL);  // Set an orbital camera mode
 
     SetTargetFPS(60);                       // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
@@ -76,7 +74,7 @@ int main()
     {
         // Update
         //----------------------------------------------------------------------------------
-        UpdateCamera(&camera);              // Update internal camera and our camera
+        UpdateCamera(&camera);              // Update camera
         //----------------------------------------------------------------------------------
 
         // Draw

src/audio.c

@@ -79,6 +79,10 @@
 #define JAR_MOD_IMPLEMENTATION
 #include "external/jar_mod.h"       // MOD loading functions
 
+#define DR_FLAC_IMPLEMENTATION
+#define DR_FLAC_NO_WIN32_IO
+#include "external/dr_flac.h"       // FLAC loading functions
+
 #ifdef _MSC_VER
     #undef bool
 #endif
@@ -98,12 +102,13 @@
 // Types and Structures Definition
 //----------------------------------------------------------------------------------
 
-typedef enum { MUSIC_AUDIO_OGG = 0, MUSIC_MODULE_XM, MUSIC_MODULE_MOD } MusicContextType;
+typedef enum { MUSIC_AUDIO_OGG = 0, MUSIC_AUDIO_FLAC, MUSIC_MODULE_XM, MUSIC_MODULE_MOD } MusicContextType;
 
 // Music type (file streaming from memory)
 typedef struct MusicData {
     MusicContextType ctxType;           // Type of music context (OGG, XM, MOD)
     stb_vorbis *ctxOgg;                 // OGG audio context
+    drflac *ctxFlac;                    // FLAC audio context
     jar_xm_context_t *ctxXm;            // XM chiptune context
     jar_mod_context_t ctxMod;           // MOD chiptune context
 
@@ -128,6 +133,7 @@ typedef enum { INFO = 0, ERROR, WARNING, DEBUG, OTHER } TraceLogType;
 //----------------------------------------------------------------------------------
 static Wave LoadWAV(const char *fileName);          // Load WAV file
 static Wave LoadOGG(const char *fileName);          // Load OGG file
+static Wave LoadFLAC(const char *fileName);         // Load FLAC file
 
 #if defined(AUDIO_STANDALONE)
 const char *GetExtension(const char *fileName);     // Get the extension for a filename
@@ -212,6 +218,7 @@ Wave LoadWave(const char *fileName)
 
     if (strcmp(GetExtension(fileName), "wav") == 0) wave = LoadWAV(fileName);
     else if (strcmp(GetExtension(fileName), "ogg") == 0) wave = LoadOGG(fileName);
+    else if (strcmp(GetExtension(fileName), "flac") == 0) wave = LoadFLAC(fileName);
     else TraceLog(WARNING, "[%s] File extension not recognized, it can't be loaded", fileName);
 
     return wave;
@@ -672,7 +679,7 @@ Music LoadMusicStream(const char *fileName)
         // Open ogg audio stream
         music->ctxOgg = stb_vorbis_open_filename(fileName, NULL, NULL);
 
-        if (music->ctxOgg == NULL)  TraceLog(WARNING, "[%s] OGG audio file could not be opened", fileName);
+        if (music->ctxOgg == NULL) TraceLog(WARNING, "[%s] OGG audio file could not be opened", fileName);
         else
         {
             stb_vorbis_info info = stb_vorbis_get_info(music->ctxOgg);  // Get Ogg file info
@@ -691,6 +698,24 @@ Music LoadMusicStream(const char *fileName)
 
         }
     }
+    else if (strcmp(GetExtension(fileName), "flac") == 0)
+    {
+        music->ctxFlac = drflac_open_file(fileName);
+        
+        if (music->ctxFlac == NULL) TraceLog(WARNING, "[%s] FLAC audio file could not be opened", fileName);
+        else
+        {
+            music->stream = InitAudioStream(music->ctxFlac->sampleRate, music->ctxFlac->bitsPerSample, music->ctxFlac->channels);
+            music->totalSamples = (unsigned int)music->ctxFlac->totalSampleCount;
+            music->samplesLeft = music->totalSamples;
+            music->ctxType = MUSIC_AUDIO_FLAC;
+            music->loop = true;                  // We loop by default
+            
+            TraceLog(DEBUG, "[%s] FLAC sample rate: %i", fileName, music->ctxFlac->sampleRate);
+            TraceLog(DEBUG, "[%s] FLAC bits per sample: %i", fileName, music->ctxFlac->bitsPerSample);
+            TraceLog(DEBUG, "[%s] FLAC channels: %i", fileName, music->ctxFlac->channels);
+        }
+    }
     else if (strcmp(GetExtension(fileName), "xm") == 0)
     {
         int result = jar_xm_create_context_from_file(&music->ctxXm, 48000, fileName);
@@ -739,6 +764,7 @@ void UnloadMusicStream(Music music)
     CloseAudioStream(music->stream);
 
     if (music->ctxType == MUSIC_AUDIO_OGG) stb_vorbis_close(music->ctxOgg);
+    else if (music->ctxType == MUSIC_AUDIO_FLAC) drflac_free(music->ctxFlac);
     else if (music->ctxType == MUSIC_MODULE_XM) jar_xm_free_context(music->ctxXm);
     else if (music->ctxType == MUSIC_MODULE_MOD) jar_mod_unload(&music->ctxMod);
 
@@ -818,6 +844,20 @@ void UpdateMusicStream(Music music)
                     UpdateAudioStream(music->stream, pcm, numSamplesOgg*music->stream.channels);
                     music->samplesLeft -= (numSamplesOgg*music->stream.channels);
 
+                } break;
+                case MUSIC_AUDIO_FLAC:
+                {
+                    if (music->samplesLeft >= AUDIO_BUFFER_SIZE) numSamples = AUDIO_BUFFER_SIZE;
+                    else numSamples = music->samplesLeft;
+                    
+                    int pcmi[AUDIO_BUFFER_SIZE];
+                    
+                    // NOTE: Returns the number of samples to process (should be the same as numSamples)
+                    unsigned int numSamplesFlac = (unsigned int)drflac_read_s32(music->ctxFlac, numSamples, pcmi);
+
+                    UpdateAudioStream(music->stream, pcmi, numSamplesFlac*music->stream.channels);
+                    music->samplesLeft -= (numSamples*music->stream.channels);
+
                 } break;
                 case MUSIC_MODULE_XM:
                 {
@@ -1197,7 +1237,7 @@ static Wave LoadOGG(const char *fileName)
 
         if (totalSeconds > 10) TraceLog(WARNING, "[%s] Ogg audio lenght is larger than 10 seconds (%f), that's a big file in memory, consider music streaming", fileName, totalSeconds);
 
-        int totalSamples = totalSeconds*info.sample_rate*info.channels;
+        int totalSamples = (int)(totalSeconds*info.sample_rate*info.channels);
         wave.sampleCount = totalSamples;
 
         wave.data = (short *)malloc(totalSamplesLength*sizeof(short));
@@ -1214,6 +1254,24 @@ static Wave LoadOGG(const char *fileName)
     return wave;
 }
 
+// Load FLAC file into Wave structure
+// NOTE: Using dr_flac library
+static Wave LoadFLAC(const char *fileName)
+{
+    Wave wave;
+
+    // Decode an entire FLAC file in one go
+    uint64_t totalSampleCount;
+    wave.data = drflac_open_and_decode_file_s32(fileName, &wave.channels, &wave.sampleRate, &totalSampleCount);
+    
+    wave.sampleCount = (int)totalSampleCount;
+    wave.sampleSize = 32;
+    
+    if (wave.data == NULL) TraceLog(WARNING, "[%s] FLAC data could not be loaded", fileName);
+    
+    return wave;
+}
+
 // Some required functions for audio standalone module version
 #if defined(AUDIO_STANDALONE)
 // Get the extension for a filename

src/core.c

@@ -18,7 +18,11 @@
 *
 *   On PLATFORM_RPI, graphic device is managed by EGL and input system is coded in raw mode.
 *
-*   Copyright (c) 2014 Ramon Santamaria (@raysan5)
+*   Module Configuration Flags:
+*
+*       RL_LOAD_DEFAULT_FONT - Use external module functions to load default raylib font (module: text)
+*
+*   Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
 *
 *   This software is provided "as-is", without any express or implied warranty. In no event
 *   will the authors be held liable for any damages arising from the use of this software.
@@ -54,12 +58,12 @@
 #endif
 
 #include <stdio.h>          // Standard input / output lib
-#include <stdlib.h>         // Declares malloc() and free() for memory management, rand(), atexit()
-#include <stdint.h>         // Required for typedef unsigned long long int uint64_t, used by hi-res timer
-#include <time.h>           // Useful to initialize random seed - Android/RPI hi-res timer (NOTE: Linux only!)
-#include <math.h>           // Math related functions, tan() used to set perspective
-#include <string.h>         // String function definitions, memset()
-#include <errno.h>          // Macros for reporting and retrieving error conditions through error codes
+#include <stdlib.h>         // Required for: malloc(), free(), rand(), atexit()
+#include <stdint.h>         // Required for: typedef unsigned long long int uint64_t, used by hi-res timer
+#include <time.h>           // Required for: time() - Android/RPI hi-res timer (NOTE: Linux only!)
+#include <math.h>           // Required for: tan() [Used in Begin3dMode() to set perspective]
+#include <string.h>         // Required for: strcmp()
+//#include <errno.h>          // Macros for reporting and retrieving error conditions through error codes
 
 #if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
     //#define GLFW_INCLUDE_NONE   // Disable the standard OpenGL header inclusion on GLFW3
@@ -75,8 +79,7 @@
 #endif
 
 #if defined(PLATFORM_ANDROID)
-    #include <jni.h>                        // Java native interface
-    #include <android/sensor.h>             // Android sensors functions
+    //#include <android/sensor.h>           // Android sensors functions (accelerometer, gyroscope, light...)
     #include <android/window.h>             // Defines AWINDOW_FLAG_FULLSCREEN and others
     #include <android_native_app_glue.h>    // Defines basic app state struct and manages activity
 
@@ -124,12 +127,14 @@
     //#define DEFAULT_GAMEPAD_DEV     "/dev/input/eventN"
 
     #define MOUSE_SENSITIVITY         0.8f
-
-    #define MAX_GAMEPADS              2         // Max number of gamepads supported
-    #define MAX_GAMEPAD_BUTTONS       11        // Max bumber of buttons supported (per gamepad)
-    #define MAX_GAMEPAD_AXIS          8         // Max number of axis supported (per gamepad)
 #endif
 
+#define MAX_GAMEPADS              4         // Max number of gamepads supported
+#define MAX_GAMEPAD_BUTTONS       32        // Max bumber of buttons supported (per gamepad)
+#define MAX_GAMEPAD_AXIS          8         // Max number of axis supported (per gamepad)
+
+#define RL_LOAD_DEFAULT_FONT        // Load default font on window initialization (module: text)
+
 //----------------------------------------------------------------------------------
 // Types and Structures Definition
 //----------------------------------------------------------------------------------
@@ -152,9 +157,6 @@ static const char *internalDataPath;            // Android internal data path to
 static bool windowReady = false;                // Used to detect display initialization
 static bool appEnabled = true;                  // Used to detec if app is active
 static bool contextRebindRequired = false;      // Used to know context rebind required
-
-static int previousButtonState[128] = { 1 };    // Required to check if button pressed/released once
-static int currentButtonState[128] = { 1 };     // Required to check if button pressed/released once
 #endif
 
 #if defined(PLATFORM_RPI)
@@ -168,15 +170,11 @@ static int defaultKeyboardMode;                 // Used to store default keyboar
 // Mouse input variables
 static int mouseStream = -1;                    // Mouse device file descriptor
 static bool mouseReady = false;                 // Flag to know if mouse is ready
-pthread_t mouseThreadId;                        // Mouse reading thread id
+static pthread_t mouseThreadId;                 // Mouse reading thread id
 
 // Gamepad input variables
-static int gamepadStream[MAX_GAMEPADS] = { -1 };    // Gamepad device file descriptor (two gamepads supported)
-static bool gamepadReady[MAX_GAMEPADS] = { false }; // Flag to know if gamepad is ready (two gamepads supported)
-pthread_t gamepadThreadId;                          // Gamepad reading thread id
-
-int gamepadButtons[MAX_GAMEPADS][MAX_GAMEPAD_BUTTONS];        // Gamepad buttons state
-float gamepadAxisValues[MAX_GAMEPADS][MAX_GAMEPAD_AXIS];      // Gamepad axis state
+static int gamepadStream[MAX_GAMEPADS] = { -1 };// Gamepad device file descriptor
+static pthread_t gamepadThreadId;               // Gamepad reading thread id
 #endif
 
 #if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
@@ -200,25 +198,32 @@ static Matrix downscaleView;                // Matrix to downscale view (in case
 #if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) || defined(PLATFORM_WEB)
 static const char *windowTitle;             // Window text title...
 static bool cursorOnScreen = false;         // Tracks if cursor is inside client area
+static bool cursorHidden = false;           // Track if cursor is hidden
 
-static char previousKeyState[512] = { 0 };  // Required to check if key pressed/released once
-static char currentKeyState[512] = { 0 };   // Required to check if key pressed/released once
+// Register mouse states
+static char previousMouseState[3] = { 0 };  // Registers previous mouse button state
+static char currentMouseState[3] = { 0 };   // Registers current mouse button state
+static int previousMouseWheelY = 0;         // Registers previous mouse wheel variation
+static int currentMouseWheelY = 0;          // Registers current mouse wheel variation
 
-static char previousGamepadState[32] = {0}; // Required to check if gamepad btn pressed/released once
-static char currentGamepadState[32] = {0};  // Required to check if gamepad btn pressed/released once
-
-static char previousMouseState[3] = { 0 };  // Required to check if mouse btn pressed/released once
-static char currentMouseState[3] = { 0 };   // Required to check if mouse btn pressed/released once
-
-static int previousMouseWheelY = 0;         // Required to track mouse wheel variation
-static int currentMouseWheelY = 0;          // Required to track mouse wheel variation
+// Register gamepads states
+static bool gamepadReady[MAX_GAMEPADS] = { false };             // Flag to know if gamepad is ready
+static float gamepadAxisState[MAX_GAMEPADS][MAX_GAMEPAD_AXIS];  // Gamepad axis state
+static char previousGamepadState[MAX_GAMEPADS][MAX_GAMEPAD_BUTTONS];    // Previous gamepad buttons state
+static char currentGamepadState[MAX_GAMEPADS][MAX_GAMEPAD_BUTTONS];     // Current gamepad buttons state
 
+// Keyboard configuration
 static int exitKey = KEY_ESCAPE;            // Default exit key (ESC)
-static int lastKeyPressed = -1;             // Register last key pressed
-
-static bool cursorHidden;                   // Track if cursor is hidden
 #endif
 
+// Register keyboard states
+static char previousKeyState[512] = { 0 };  // Registers previous frame key state
+static char currentKeyState[512] = { 0 };   // Registers current frame key state
+
+static int lastKeyPressed = -1;             // Register last key pressed
+static int lastGamepadButtonPressed = -1;   // Register last gamepad button pressed
+static int gamepadAxisCount = 0;            // Register number of available gamepad axis
+
 static Vector2 mousePosition;               // Mouse position on screen
 static Vector2 touchPosition[MAX_TOUCH_POINTS]; // Touch position on screen
 
@@ -238,11 +243,10 @@ static bool showLogo = false;               // Track if showing logo at init is
 //----------------------------------------------------------------------------------
 // Other Modules Functions Declaration (required by core)
 //----------------------------------------------------------------------------------
+#if defined(RL_LOAD_DEFAULT_FONT)
 extern void LoadDefaultFont(void);          // [Module: text] Loads default font on InitWindow()
 extern void UnloadDefaultFont(void);        // [Module: text] Unloads default font from GPU memory
-
-extern void ProcessGestureEvent(GestureEvent event);    // [Module: gestures] Process gesture event and translate it into gestures
-extern void UpdateGestures(void);                       // [Module: gestures] Update gestures detected (called in PollInputEvents())
+#endif
 
 //----------------------------------------------------------------------------------
 // Module specific Functions Declaration
@@ -311,9 +315,11 @@ void InitWindow(int width, int height, const char *title)
     // Init graphics device (display device and OpenGL context)
     InitGraphicsDevice(width, height);
 
-    // Load default font for convenience
+#if defined(RL_LOAD_DEFAULT_FONT)
+    // Load default font
     // NOTE: External function (defined in module: text)
     LoadDefaultFont();
+#endif
 
     // Init hi-res timer
     InitTimer();
@@ -355,7 +361,7 @@ void InitWindow(int width, int height, const char *title)
 
 #if defined(PLATFORM_ANDROID)
 // Android activity initialization
-void InitWindow(int width, int height, struct android_app *state)
+void InitWindow(int width, int height, void *state)
 {
     TraceLog(INFO, "Initializing raylib (v1.6.0)");
 
@@ -364,7 +370,7 @@ void InitWindow(int width, int height, struct android_app *state)
     screenWidth = width;
     screenHeight = height;
 
-    app = state;
+    app = (struct android_app *)state;
     internalDataPath = app->activity->internalDataPath;
 
     // Set desired windows flags before initializing anything
@@ -420,7 +426,9 @@ void InitWindow(int width, int height, struct android_app *state)
 // Close Window and Terminate Context
 void CloseWindow(void)
 {
+#if defined(RL_LOAD_DEFAULT_FONT)
     UnloadDefaultFont();
+#endif
 
     rlglClose();                // De-init rlgl
 
@@ -456,6 +464,9 @@ void CloseWindow(void)
     // Wait for mouse and gamepad threads to finish before closing
     // NOTE: Those threads should already have finished at this point
     // because they are controlled by windowShouldClose variable
+    
+    windowShouldClose = true;   // Added to force threads to exit when the close window is called
+    
     pthread_join(mouseThreadId, NULL);
     pthread_join(gamepadThreadId, NULL);
 #endif
@@ -516,6 +527,65 @@ int GetScreenHeight(void)
     return screenHeight;
 }
 
+#if !defined(PLATFORM_ANDROID)
+// Show mouse cursor
+void ShowCursor()
+{
+#if defined(PLATFORM_DESKTOP)
+    #ifdef __linux
+        XUndefineCursor(glfwGetX11Display(), glfwGetX11Window(window));
+    #else
+        glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
+    #endif
+#endif
+    cursorHidden = false;
+}
+
+// Hide mouse cursor
+void HideCursor()
+{
+#if defined(PLATFORM_DESKTOP)
+    #ifdef __linux
+        XColor Col;
+        const char Nil[] = {0};
+
+        Pixmap Pix = XCreateBitmapFromData(glfwGetX11Display(), glfwGetX11Window(window), Nil, 1, 1);
+        Cursor Cur = XCreatePixmapCursor(glfwGetX11Display(), Pix, Pix, &Col, &Col, 0, 0);
+
+        XDefineCursor(glfwGetX11Display(), glfwGetX11Window(window), Cur);
+        XFreeCursor(glfwGetX11Display(), Cur);
+    #else
+        glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
+    #endif
+#endif
+    cursorHidden = true;
+}
+
+// Check if mouse cursor is hidden
+bool IsCursorHidden()
+{
+    return cursorHidden;
+}
+
+// Enable mouse cursor
+void EnableCursor()
+{
+#if defined(PLATFORM_DESKTOP)
+    glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
+#endif
+    cursorHidden = false;
+}
+
+// Disable mouse cursor
+void DisableCursor()
+{
+#if defined(PLATFORM_DESKTOP)
+    glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
+#endif
+    cursorHidden = true;
+}
+#endif  // !defined(PLATFORM_ANDROID)
+
 // Sets Background Color
 void ClearBackground(Color color)
 {
@@ -1034,7 +1104,6 @@ Matrix GetCameraMatrix(Camera camera)
 //----------------------------------------------------------------------------------
 // Module Functions Definition - Input (Keyboard, Mouse, Gamepad) Functions
 //----------------------------------------------------------------------------------
-#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) || defined(PLATFORM_WEB)
 // Detect if a key has been pressed once
 bool IsKeyPressed(int key)
 {
@@ -1057,7 +1126,7 @@ bool IsKeyDown(int key)
 bool IsKeyReleased(int key)
 {
     bool released = false;
-
+    
     if ((currentKeyState[key] != previousKeyState[key]) && (currentKeyState[key] == 0)) released = true;
     else released = false;
 
@@ -1081,64 +1150,9 @@ int GetKeyPressed(void)
 // NOTE: default exitKey is ESCAPE
 void SetExitKey(int key)
 {
+#if !defined(PLATFORM_ANDROID)
     exitKey = key;
-}
-
-// Hide mouse cursor
-void HideCursor()
-{
-#if defined(PLATFORM_DESKTOP)
-    #ifdef __linux
-        XColor Col;
-        const char Nil[] = {0};
-
-        Pixmap Pix = XCreateBitmapFromData(glfwGetX11Display(), glfwGetX11Window(window), Nil, 1, 1);
-        Cursor Cur = XCreatePixmapCursor(glfwGetX11Display(), Pix, Pix, &Col, &Col, 0, 0);
-
-        XDefineCursor(glfwGetX11Display(), glfwGetX11Window(window), Cur);
-        XFreeCursor(glfwGetX11Display(), Cur);
-    #else
-        glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
-    #endif
 #endif
-    cursorHidden = true;
-}
-
-// Show mouse cursor
-void ShowCursor()
-{
-#if defined(PLATFORM_DESKTOP)
-    #ifdef __linux
-        XUndefineCursor(glfwGetX11Display(), glfwGetX11Window(window));
-    #else
-        glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
-    #endif
-#endif
-    cursorHidden = false;
-}
-
-// Disable mouse cursor
-void DisableCursor()
-{
-#if defined(PLATFORM_DESKTOP)
-    glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
-#endif
-    cursorHidden = true;
-}
-
-// Enable mouse cursor
-void EnableCursor()
-{
-#if defined(PLATFORM_DESKTOP)
-    glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
-#endif
-    cursorHidden = false;
-}
-
-// Check if mouse cursor is hidden
-bool IsCursorHidden()
-{
-    return cursorHidden;
 }
 
 // NOTE: Gamepad support not implemented in emscripten GLFW3 (PLATFORM_WEB)
@@ -1147,33 +1161,51 @@ bool IsCursorHidden()
 bool IsGamepadAvailable(int gamepad)
 {
     bool result = false;
-
-#if defined(PLATFORM_RPI)
+    
+#if !defined(PLATFORM_ANDROID)
     if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad]) result = true;
-#else
-    if (glfwJoystickPresent(gamepad) == 1) result = true;
 #endif
 
     return result;
 }
 
+// Check gamepad name (if available)
+bool IsGamepadName(int gamepad, const char *name)
+{
+    bool result = false;
+    const char *gamepadName = NULL; 
+    
+    if (gamepadReady[gamepad]) gamepadName = GetGamepadName(gamepad);
+    
+    if ((name != NULL) && (gamepadName != NULL)) result = (strcmp(name, gamepadName) == 0);
+    
+    return result;
+}
+
+// Return gamepad internal name id
+const char *GetGamepadName(int gamepad)
+{
+#if defined(PLATFORM_DESKTOP)
+    if (gamepadReady[gamepad]) return glfwGetJoystickName(gamepad);
+    else return NULL;
+#else
+    return NULL;
+#endif
+}
+
+// Return gamepad axis count
+int GetGamepadAxisCount(int gamepad)
+{
+    return gamepadAxisCount;
+}
+
 // Return axis movement vector for a gamepad
 float GetGamepadAxisMovement(int gamepad, int axis)
 {
     float value = 0;
-
-#if defined(PLATFORM_RPI)
-    if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad])
-    {
-        if (axis < MAX_GAMEPAD_AXIS) value = gamepadAxisValues[gamepad][axis];
-    }
-#else
-    const float *axes;
-    int axisCount = 0;
-
-    axes = glfwGetJoystickAxes(gamepad, &axisCount);
-
-    if (axis < axisCount) value = axes[axis];
+    
+#if !defined(PLATFORM_ANDROID)
+    if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (axis < MAX_GAMEPAD_AXIS)) value = gamepadAxisState[gamepad][axis];
 #endif
 
     return value;
@@ -1184,14 +1216,11 @@ bool IsGamepadButtonPressed(int gamepad, int button)
 {
     bool pressed = false;
 
-    currentGamepadState[button] = IsGamepadButtonDown(gamepad, button);
-
-    if (currentGamepadState[button] != previousGamepadState[button])
-    {
-        if (currentGamepadState[button]) pressed = true;
-        previousGamepadState[button] = currentGamepadState[button];
-    }
-    else pressed = false;
+#if !defined(PLATFORM_ANDROID)
+    if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (button < MAX_GAMEPAD_BUTTONS) && 
+        (currentGamepadState[gamepad][button] != previousGamepadState[gamepad][button]) && 
+        (currentGamepadState[gamepad][button] == 1)) pressed = true;
+#endif
 
     return pressed;
 }
@@ -1201,18 +1230,9 @@ bool IsGamepadButtonDown(int gamepad, int button)
 {
     bool result = false;
 
-#if defined(PLATFORM_RPI)
-    // Get gamepad buttons information
-    if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (gamepadButtons[gamepad][button] == 1)) result = true;
-    else result = false;
-#else
-    const unsigned char *buttons;
-    int buttonsCount;
-
-    buttons = glfwGetJoystickButtons(gamepad, &buttonsCount);
-
-    if ((buttons != NULL) && (buttons[button] == GLFW_PRESS)) result = true;
-    else result = false;
+#if !defined(PLATFORM_ANDROID)
+    if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (button < MAX_GAMEPAD_BUTTONS) &&
+        (currentGamepadState[gamepad][button] == 1)) result = true;
 #endif
 
     return result;
@@ -1222,15 +1242,12 @@ bool IsGamepadButtonDown(int gamepad, int button)
 bool IsGamepadButtonReleased(int gamepad, int button)
 {
     bool released = false;
-
-    currentGamepadState[button] = IsGamepadButtonUp(gamepad, button);
-
-    if (currentGamepadState[button] != previousGamepadState[button])
-    {
-        if (currentGamepadState[button]) released = true;
-        previousGamepadState[button] = currentGamepadState[button];
-    }
-    else released = false;
+    
+#if !defined(PLATFORM_ANDROID)
+    if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (button < MAX_GAMEPAD_BUTTONS) && 
+        (currentGamepadState[gamepad][button] != previousGamepadState[gamepad][button]) && 
+        (currentGamepadState[gamepad][button] == 0)) released = true;
+#endif
 
     return released;
 }
@@ -1240,24 +1257,19 @@ bool IsGamepadButtonUp(int gamepad, int button)
 {
     bool result = false;
 
-#if defined(PLATFORM_RPI)
-    // Get gamepad buttons information
-    if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (gamepadButtons[gamepad][button] == 0)) result = true;
-    else result = false;
-#else
-    const unsigned char *buttons;
-    int buttonsCount;
-
-    buttons = glfwGetJoystickButtons(gamepad, &buttonsCount);
-
-    if ((buttons != NULL) && (buttons[button] == GLFW_RELEASE)) result = true;
-    else result = false;
+#if !defined(PLATFORM_ANDROID)
+    if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (button < MAX_GAMEPAD_BUTTONS) && 
+        (currentGamepadState[gamepad][button] == 0)) result = true;
 #endif
 
     return result;
 }
-#endif  //defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) || defined(PLATFORM_WEB)
 
+// Get the last gamepad button pressed
+int GetGamepadButtonPressed(void)
+{
+    return lastGamepadButtonPressed;
+}
 
 // Detect if a mouse button has been pressed once
 bool IsMouseButtonPressed(int button)
@@ -1411,37 +1423,6 @@ Vector2 GetTouchPosition(int index)
     return position;
 }
 
-#if defined(PLATFORM_ANDROID)
-// Detect if a button has been pressed once
-bool IsButtonPressed(int button)
-{
-    bool pressed = false;
-
-    if ((currentButtonState[button] != previousButtonState[button]) && (currentButtonState[button] == 0)) pressed = true;
-    else pressed = false;
-
-    return pressed;
-}
-
-// Detect if a button is being pressed (button held down)
-bool IsButtonDown(int button)
-{
-    if (currentButtonState[button] == 0) return true;
-    else return false;
-}
-
-// Detect if a button has been released once
-bool IsButtonReleased(int button)
-{
-    bool released = false;
-
-    if ((currentButtonState[button] != previousButtonState[button]) && (currentButtonState[button] == 1)) released = true;
-    else released = false;
-
-    return released;
-}
-#endif
-
 //----------------------------------------------------------------------------------
 // Module specific Functions Definition
 //----------------------------------------------------------------------------------
@@ -1924,8 +1905,9 @@ static bool GetKeyStatus(int key)
 #if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
     return glfwGetKey(window, key);
 #elif defined(PLATFORM_ANDROID)
-    // TODO: Check for virtual keyboard
-    return false;
+    // NOTE: Android supports up to 260 keys
+    if (key < 0 || key > 260) return false;
+    else return currentKeyState[key];
 #elif defined(PLATFORM_RPI)
     // NOTE: Keys states are filled in PollInputEvents()
     if (key < 0 || key > 511) return false;
@@ -1953,6 +1935,13 @@ static void PollInputEvents(void)
     // NOTE: Gestures update must be called every frame to reset gestures correctly
     // because ProcessGestureEvent() is just called on an event, not every frame
     UpdateGestures();
+    
+    // Reset last key pressed registered
+    lastKeyPressed = -1;
+    
+    // Reset last gamepad button pressed registered
+    lastGamepadButtonPressed = -1;
+    gamepadAxisCount = 0;
 
 #if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
     // Mouse input polling
@@ -1963,9 +1952,8 @@ static void PollInputEvents(void)
 
     mousePosition.x = (float)mouseX;
     mousePosition.y = (float)mouseY;
-
+    
     // Keyboard input polling (automatically managed by GLFW3 through callback)
-    lastKeyPressed = -1;
 
     // Register previous keys states
     for (int i = 0; i < 512; i++) previousKeyState[i] = currentKeyState[i];
@@ -1975,13 +1963,62 @@ static void PollInputEvents(void)
 
     previousMouseWheelY = currentMouseWheelY;
     currentMouseWheelY = 0;
+    
+    // Check if gamepads are ready
+    // NOTE: We do it here in case of disconection
+    for (int i = 0; i < MAX_GAMEPADS; i++)
+    {
+        if (glfwJoystickPresent(i)) gamepadReady[i] = true;
+        else gamepadReady[i] = false;
+    }
+    
+    // Register gamepads buttons events
+    for (int i = 0; i < MAX_GAMEPADS; i++)
+    {
+        if (gamepadReady[i])     // Check if gamepad is available
+        {
+            // Register previous gamepad states
+            for (int k = 0; k < MAX_GAMEPAD_BUTTONS; k++) previousGamepadState[i][k] = currentGamepadState[i][k];
+    
+            // Get current gamepad state
+            // NOTE: There is no callback available, so we get it manually
+            const unsigned char *buttons;
+            int buttonsCount;
 
-    glfwPollEvents();       // Register keyboard/mouse events... and window events!
+            buttons = glfwGetJoystickButtons(i, &buttonsCount);
+            
+            for (int k = 0; (buttons != NULL) && (k < buttonsCount) && (buttonsCount < MAX_GAMEPAD_BUTTONS); k++)
+            {
+                if (buttons[k] == GLFW_PRESS)
+                {
+                    currentGamepadState[i][k] = 1;
+                    lastGamepadButtonPressed = k;
+                }
+                else currentGamepadState[i][k] = 0;
+            }
+            
+            // Get current axis state
+            const float *axes;
+            int axisCount = 0;
+
+            axes = glfwGetJoystickAxes(i, &axisCount);
+            
+            for (int k = 0; (axes != NULL) && (k < axisCount) && (k < MAX_GAMEPAD_AXIS); k++)
+            {
+                gamepadAxisState[i][k] = axes[k];
+            }
+            
+            gamepadAxisCount = axisCount;
+        }
+    }
+
+    glfwPollEvents();       // Register keyboard/mouse events (callbacks)... and window events!
 #endif
 
 #if defined(PLATFORM_ANDROID)
     // Register previous keys states
-    for (int i = 0; i < 128; i++) previousButtonState[i] = currentButtonState[i];
+    // NOTE: Android supports up to 260 keys
+    for (int i = 0; i < 260; i++) previousKeyState[i] = currentKeyState[i];
 
     // Poll Events (registered events)
     // NOTE: Activity is paused if not enabled (appEnabled)
@@ -2245,9 +2282,11 @@ static void AndroidCommandCallback(struct android_app *app, int32_t cmd)
                     // Init graphics device (display device and OpenGL context)
                     InitGraphicsDevice(screenWidth, screenHeight);
 
-                    // Load default font for convenience
+                    #if defined(RL_LOAD_DEFAULT_FONT)
+                    // Load default font
                     // NOTE: External function (defined in module: text)
                     LoadDefaultFont();
+                    #endif
 
                     // TODO: GPU assets reload in case of lost focus (lost context)
                     // NOTE: This problem has been solved just unbinding and rebinding context from display
@@ -2356,7 +2395,13 @@ static int32_t AndroidInputCallback(struct android_app *app, AInputEvent *event)
         //int32_t AKeyEvent_getMetaState(event);
 
         // Save current button and its state
-        currentButtonState[keycode] = AKeyEvent_getAction(event);  // Down = 0, Up = 1
+        // NOTE: Android key action is 0 for down and 1 for up
+        if (AKeyEvent_getAction(event) == 0)
+        {
+            currentKeyState[keycode] = 1;  // Key down
+            lastKeyPressed = keycode;
+        }
+        else currentKeyState[keycode] = 0;  // Key up
 
         if (keycode == AKEYCODE_POWER)
         {
@@ -2802,7 +2847,9 @@ static void *GamepadThread(void *arg)
                     if (gamepadEvent.number < MAX_GAMEPAD_BUTTONS)
                     {
                         // 1 - button pressed, 0 - button released
-                        gamepadButtons[i][gamepadEvent.number] = (int)gamepadEvent.value;
+                        currentGamepadState[i][gamepadEvent.number] = (int)gamepadEvent.value;
+                        
+                        if ((int)gamepadEvent.value == 1) lastGamepadButtonPressed = gamepadEvent.number;
                     }
                 }
                 else if (gamepadEvent.type == JS_EVENT_AXIS)
@@ -2812,7 +2859,7 @@ static void *GamepadThread(void *arg)
                     if (gamepadEvent.number < MAX_GAMEPAD_AXIS)
                     {
                         // NOTE: Scaling of gamepadEvent.value to get values between -1..1
-                        gamepadAxisValues[i][gamepadEvent.number] = (float)gamepadEvent.value/32768;
+                        gamepadAxisState[i][gamepadEvent.number] = (float)gamepadEvent.value/32768;
                     }
                 }
             }

src/external/openal_soft/include/AL/alext.h

@@ -431,6 +431,11 @@ ALC_API ALCboolean ALC_APIENTRY alcResetDeviceSOFT(ALCdevice *device, const ALCi
 #endif
 #endif
 
+#ifndef AL_SOFT_gain_clamp_ex
+#define AL_SOFT_gain_clamp_ex 1
+#define AL_GAIN_LIMIT_SOFT                       0x200E
+#endif
+
 #ifdef __cplusplus
 }
 #endif

src/models.c

@@ -4,7 +4,7 @@
 *
 *   Basic functions to draw 3d shapes and load/draw 3d models (.OBJ)
 *
-*   Copyright (c) 2014 Ramon Santamaria (@raysan5)
+*   Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
 *
 *   This software is provided "as-is", without any express or implied warranty. In no event
 *   will the authors be held liable for any damages arising from the use of this software.
@@ -87,8 +87,8 @@ void DrawCircle3D(Vector3 center, float radius, float rotationAngle, Vector3 rot
             {
                 rlColor4ub(color.r, color.g, color.b, color.a);
 
-                rlVertex3f(sin(DEG2RAD*i)*radius, cos(DEG2RAD*i)*radius, 0.0f);
-                rlVertex3f(sin(DEG2RAD*(i + 10))*radius, cos(DEG2RAD*(i + 10))*radius, 0.0f);
+                rlVertex3f(sinf(DEG2RAD*i)*radius, cosf(DEG2RAD*i)*radius, 0.0f);
+                rlVertex3f(sinf(DEG2RAD*(i + 10))*radius, cosf(DEG2RAD*(i + 10))*radius, 0.0f);
             }
         rlEnd();
     rlPopMatrix();
@@ -325,25 +325,25 @@ void DrawSphereEx(Vector3 centerPos, float radius, int rings, int slices, Color
             {
                 for (int j = 0; j < slices; j++)
                 {
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*i))*sin(DEG2RAD*(j*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*i)),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*i))*cos(DEG2RAD*(j*360/slices)));
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sin(DEG2RAD*((j+1)*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cos(DEG2RAD*((j+1)*360/slices)));
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sin(DEG2RAD*(j*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cos(DEG2RAD*(j*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*i))*sinf(DEG2RAD*(j*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*i)),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*i))*cosf(DEG2RAD*(j*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sinf(DEG2RAD*((j+1)*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cosf(DEG2RAD*((j+1)*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sinf(DEG2RAD*(j*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cosf(DEG2RAD*(j*360/slices)));
 
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*i))*sin(DEG2RAD*(j*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*i)),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*i))*cos(DEG2RAD*(j*360/slices)));
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*(i)))*sin(DEG2RAD*((j+1)*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*(i))),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*(i)))*cos(DEG2RAD*((j+1)*360/slices)));
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sin(DEG2RAD*((j+1)*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cos(DEG2RAD*((j+1)*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*i))*sinf(DEG2RAD*(j*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*i)),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*i))*cosf(DEG2RAD*(j*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i)))*sinf(DEG2RAD*((j+1)*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*(i))),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*(i)))*cosf(DEG2RAD*((j+1)*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sinf(DEG2RAD*((j+1)*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cosf(DEG2RAD*((j+1)*360/slices)));
                 }
             }
         rlEnd();
@@ -364,26 +364,26 @@ void DrawSphereWires(Vector3 centerPos, float radius, int rings, int slices, Col
             {
                 for (int j = 0; j < slices; j++)
                 {
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*i))*sin(DEG2RAD*(j*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*i)),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*i))*cos(DEG2RAD*(j*360/slices)));
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sin(DEG2RAD*((j+1)*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cos(DEG2RAD*((j+1)*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*i))*sinf(DEG2RAD*(j*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*i)),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*i))*cosf(DEG2RAD*(j*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sinf(DEG2RAD*((j+1)*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cosf(DEG2RAD*((j+1)*360/slices)));
 
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sin(DEG2RAD*((j+1)*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cos(DEG2RAD*((j+1)*360/slices)));
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sin(DEG2RAD*(j*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cos(DEG2RAD*(j*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sinf(DEG2RAD*((j+1)*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cosf(DEG2RAD*((j+1)*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sinf(DEG2RAD*(j*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cosf(DEG2RAD*(j*360/slices)));
 
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sin(DEG2RAD*(j*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cos(DEG2RAD*(j*360/slices)));
-                    rlVertex3f(cos(DEG2RAD*(270+(180/(rings + 1))*i))*sin(DEG2RAD*(j*360/slices)),
-                               sin(DEG2RAD*(270+(180/(rings + 1))*i)),
-                               cos(DEG2RAD*(270+(180/(rings + 1))*i))*cos(DEG2RAD*(j*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sinf(DEG2RAD*(j*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cosf(DEG2RAD*(j*360/slices)));
+                    rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*i))*sinf(DEG2RAD*(j*360/slices)),
+                               sinf(DEG2RAD*(270+(180/(rings + 1))*i)),
+                               cosf(DEG2RAD*(270+(180/(rings + 1))*i))*cosf(DEG2RAD*(j*360/slices)));
                 }
             }
         rlEnd();
@@ -407,21 +407,21 @@ void DrawCylinder(Vector3 position, float radiusTop, float radiusBottom, float h
                 // Draw Body -------------------------------------------------------------------------------------
                 for (int i = 0; i < 360; i += 360/sides)
                 {
-                    rlVertex3f(sin(DEG2RAD*i)*radiusBottom, 0, cos(DEG2RAD*i)*radiusBottom); //Bottom Left
-                    rlVertex3f(sin(DEG2RAD*(i+360/sides))*radiusBottom, 0, cos(DEG2RAD*(i+360/sides))*radiusBottom); //Bottom Right
-                    rlVertex3f(sin(DEG2RAD*(i+360/sides))*radiusTop, height, cos(DEG2RAD*(i+360/sides))*radiusTop); //Top Right
+                    rlVertex3f(sinf(DEG2RAD*i)*radiusBottom, 0, cosf(DEG2RAD*i)*radiusBottom); //Bottom Left
+                    rlVertex3f(sinf(DEG2RAD*(i+360/sides))*radiusBottom, 0, cosf(DEG2RAD*(i+360/sides))*radiusBottom); //Bottom Right
+                    rlVertex3f(sinf(DEG2RAD*(i+360/sides))*radiusTop, height, cosf(DEG2RAD*(i+360/sides))*radiusTop); //Top Right
 
-                    rlVertex3f(sin(DEG2RAD*i)*radiusTop, height, cos(DEG2RAD*i)*radiusTop); //Top Left
-                    rlVertex3f(sin(DEG2RAD*i)*radiusBottom, 0, cos(DEG2RAD*i)*radiusBottom); //Bottom Left
-                    rlVertex3f(sin(DEG2RAD*(i+360/sides))*radiusTop, height, cos(DEG2RAD*(i+360/sides))*radiusTop); //Top Right
+                    rlVertex3f(sinf(DEG2RAD*i)*radiusTop, height, cosf(DEG2RAD*i)*radiusTop); //Top Left
+                    rlVertex3f(sinf(DEG2RAD*i)*radiusBottom, 0, cosf(DEG2RAD*i)*radiusBottom); //Bottom Left
+                    rlVertex3f(sinf(DEG2RAD*(i+360/sides))*radiusTop, height, cosf(DEG2RAD*(i+360/sides))*radiusTop); //Top Right
                 }
 
                 // Draw Cap --------------------------------------------------------------------------------------
                 for (int i = 0; i < 360; i += 360/sides)
                 {
                     rlVertex3f(0, height, 0);
-                    rlVertex3f(sin(DEG2RAD*i)*radiusTop, height, cos(DEG2RAD*i)*radiusTop);
-                    rlVertex3f(sin(DEG2RAD*(i+360/sides))*radiusTop, height, cos(DEG2RAD*(i+360/sides))*radiusTop);
+                    rlVertex3f(sinf(DEG2RAD*i)*radiusTop, height, cosf(DEG2RAD*i)*radiusTop);
+                    rlVertex3f(sinf(DEG2RAD*(i+360/sides))*radiusTop, height, cosf(DEG2RAD*(i+360/sides))*radiusTop);
                 }
             }
             else
@@ -430,8 +430,8 @@ void DrawCylinder(Vector3 position, float radiusTop, float radiusBottom, float h
                 for (int i = 0; i < 360; i += 360/sides)
                 {
                     rlVertex3f(0, height, 0);
-                    rlVertex3f(sin(DEG2RAD*i)*radiusBottom, 0, cos(DEG2RAD*i)*radiusBottom);
-                    rlVertex3f(sin(DEG2RAD*(i+360/sides))*radiusBottom, 0, cos(DEG2RAD*(i+360/sides))*radiusBottom);
+                    rlVertex3f(sinf(DEG2RAD*i)*radiusBottom, 0, cosf(DEG2RAD*i)*radiusBottom);
+                    rlVertex3f(sinf(DEG2RAD*(i+360/sides))*radiusBottom, 0, cosf(DEG2RAD*(i+360/sides))*radiusBottom);
                 }
             }
 
@@ -439,8 +439,8 @@ void DrawCylinder(Vector3 position, float radiusTop, float radiusBottom, float h
             for (int i = 0; i < 360; i += 360/sides)
             {
                 rlVertex3f(0, 0, 0);
-                rlVertex3f(sin(DEG2RAD*(i+360/sides))*radiusBottom, 0, cos(DEG2RAD*(i+360/sides))*radiusBottom);
-                rlVertex3f(sin(DEG2RAD*i)*radiusBottom, 0, cos(DEG2RAD*i)*radiusBottom);
+                rlVertex3f(sinf(DEG2RAD*(i+360/sides))*radiusBottom, 0, cosf(DEG2RAD*(i+360/sides))*radiusBottom);
+                rlVertex3f(sinf(DEG2RAD*i)*radiusBottom, 0, cosf(DEG2RAD*i)*radiusBottom);
             }
         rlEnd();
     rlPopMatrix();
@@ -460,17 +460,17 @@ void DrawCylinderWires(Vector3 position, float radiusTop, float radiusBottom, fl
 
             for (int i = 0; i < 360; i += 360/sides)
             {
-                rlVertex3f(sin(DEG2RAD*i)*radiusBottom, 0, cos(DEG2RAD*i)*radiusBottom);
-                rlVertex3f(sin(DEG2RAD*(i+360/sides))*radiusBottom, 0, cos(DEG2RAD*(i+360/sides))*radiusBottom);
+                rlVertex3f(sinf(DEG2RAD*i)*radiusBottom, 0, cosf(DEG2RAD*i)*radiusBottom);
+                rlVertex3f(sinf(DEG2RAD*(i+360/sides))*radiusBottom, 0, cosf(DEG2RAD*(i+360/sides))*radiusBottom);
 
-                rlVertex3f(sin(DEG2RAD*(i+360/sides))*radiusBottom, 0, cos(DEG2RAD*(i+360/sides))*radiusBottom);
-                rlVertex3f(sin(DEG2RAD*(i+360/sides))*radiusTop, height, cos(DEG2RAD*(i+360/sides))*radiusTop);
+                rlVertex3f(sinf(DEG2RAD*(i+360/sides))*radiusBottom, 0, cosf(DEG2RAD*(i+360/sides))*radiusBottom);
+                rlVertex3f(sinf(DEG2RAD*(i+360/sides))*radiusTop, height, cosf(DEG2RAD*(i+360/sides))*radiusTop);
 
-                rlVertex3f(sin(DEG2RAD*(i+360/sides))*radiusTop, height, cos(DEG2RAD*(i+360/sides))*radiusTop);
-                rlVertex3f(sin(DEG2RAD*i)*radiusTop, height, cos(DEG2RAD*i)*radiusTop);
+                rlVertex3f(sinf(DEG2RAD*(i+360/sides))*radiusTop, height, cosf(DEG2RAD*(i+360/sides))*radiusTop);
+                rlVertex3f(sinf(DEG2RAD*i)*radiusTop, height, cosf(DEG2RAD*i)*radiusTop);
 
-                rlVertex3f(sin(DEG2RAD*i)*radiusTop, height, cos(DEG2RAD*i)*radiusTop);
-                rlVertex3f(sin(DEG2RAD*i)*radiusBottom, 0, cos(DEG2RAD*i)*radiusBottom);
+                rlVertex3f(sinf(DEG2RAD*i)*radiusTop, height, cosf(DEG2RAD*i)*radiusTop);
+                rlVertex3f(sinf(DEG2RAD*i)*radiusBottom, 0, cosf(DEG2RAD*i)*radiusBottom);
             }
         rlEnd();
     rlPopMatrix();

src/raylib.h

@@ -77,10 +77,6 @@
     #define PLATFORM_DESKTOP
 #endif
 
-#if defined(PLATFORM_ANDROID)
-    typedef struct android_app; // Define android_app struct (android_native_app_glue.h)
-#endif
-
 #if defined(_WIN32) && defined(BUILDING_DLL)
     #define RLAPI __declspec(dllexport)         // We are building raylib as a Win32 DLL
 #elif defined(_WIN32) && defined(RAYLIB_DLL)
@@ -93,7 +89,7 @@
 // Some basic Defines
 //----------------------------------------------------------------------------------
 #ifndef PI
-    #define PI 3.14159265358979323846
+    #define PI 3.14159265358979323846f
 #endif
 
 #define DEG2RAD (PI/180.0f)
@@ -174,15 +170,18 @@
 #define KEY_Y                89
 #define KEY_Z                90
 
+#if defined(PLATFORM_ANDROID)
+    // Android Physical Buttons
+    #define KEY_BACK              4
+    #define KEY_MENU             82
+    #define KEY_VOLUME_UP        24
+    #define KEY_VOLUME_DOWN      25
+#endif
+
 // Mouse Buttons
 #define MOUSE_LEFT_BUTTON     0
-#if defined(PLATFORM_WEB)
-    #define MOUSE_RIGHT_BUTTON    2
-    #define MOUSE_MIDDLE_BUTTON   1
-#else
-    #define MOUSE_RIGHT_BUTTON    1
-    #define MOUSE_MIDDLE_BUTTON   2
-#endif
+#define MOUSE_RIGHT_BUTTON    1
+#define MOUSE_MIDDLE_BUTTON   2
 
 // Touch points registered
 #define MAX_TOUCH_POINTS     2
@@ -190,24 +189,35 @@
 // Gamepad Number
 #define GAMEPAD_PLAYER1       0
 #define GAMEPAD_PLAYER2       1
-#define GAMEPAD_PLAYER3       2     // Not supported
-#define GAMEPAD_PLAYER4       3     // Not supported
+#define GAMEPAD_PLAYER3       2
+#define GAMEPAD_PLAYER4       3
 
-// Gamepad Buttons
+// Gamepad Buttons/Axis
 
-// PS3 USB Controller
-#define GAMEPAD_PS3_BUTTON_A        2
-#define GAMEPAD_PS3_BUTTON_B        1
-#define GAMEPAD_PS3_BUTTON_X        3
-#define GAMEPAD_PS3_BUTTON_Y        4
-#define GAMEPAD_PS3_BUTTON_R1       7
-#define GAMEPAD_PS3_BUTTON_R2       5
+// PS3 USB Controller Buttons
+#define GAMEPAD_PS3_BUTTON_TRIANGLE 0
+#define GAMEPAD_PS3_BUTTON_CIRCLE   1
+#define GAMEPAD_PS3_BUTTON_CROSS    2
+#define GAMEPAD_PS3_BUTTON_SQUARE   3
 #define GAMEPAD_PS3_BUTTON_L1       6
-#define GAMEPAD_PS3_BUTTON_L2       8
+#define GAMEPAD_PS3_BUTTON_R1       7
+#define GAMEPAD_PS3_BUTTON_L2       4
+#define GAMEPAD_PS3_BUTTON_R2       5
+#define GAMEPAD_PS3_BUTTON_START    8
 #define GAMEPAD_PS3_BUTTON_SELECT   9
-#define GAMEPAD_PS3_BUTTON_START   10
+#define GAMEPAD_PS3_BUTTON_UP      24
+#define GAMEPAD_PS3_BUTTON_RIGHT   25
+#define GAMEPAD_PS3_BUTTON_DOWN    26
+#define GAMEPAD_PS3_BUTTON_LEFT    27
+#define GAMEPAD_PS3_BUTTON_PS      12
 
-// TODO: Add PS3 d-pad axis
+// PS3 USB Controller Axis
+#define GAMEPAD_PS3_AXIS_LEFT_X     0
+#define GAMEPAD_PS3_AXIS_LEFT_Y     1
+#define GAMEPAD_PS3_AXIS_RIGHT_X    2
+#define GAMEPAD_PS3_AXIS_RIGHT_Y    5
+#define GAMEPAD_PS3_AXIS_L2         3       // 1.0(not pressed) --> -1.0(completely pressed)
+#define GAMEPAD_PS3_AXIS_R2         4       // 1.0(not pressed) --> -1.0(completely pressed)
 
 // Xbox360 USB Controller Buttons
 #define GAMEPAD_XBOX_BUTTON_A       0
@@ -218,32 +228,31 @@
 #define GAMEPAD_XBOX_BUTTON_RB      5
 #define GAMEPAD_XBOX_BUTTON_SELECT  6
 #define GAMEPAD_XBOX_BUTTON_START   7
+#define GAMEPAD_XBOX_BUTTON_UP      10
+#define GAMEPAD_XBOX_BUTTON_RIGHT   11
+#define GAMEPAD_XBOX_BUTTON_DOWN    12
+#define GAMEPAD_XBOX_BUTTON_LEFT    13
+#define GAMEPAD_XBOX_BUTTON_HOME    9
 
+// Xbox360 USB Controller Axis
+#define GAMEPAD_XBOX_AXIS_LEFT_X    0
+#define GAMEPAD_XBOX_AXIS_LEFT_Y    1
+#define GAMEPAD_XBOX_AXIS_RIGHT_X   2
+#define GAMEPAD_XBOX_AXIS_RIGHT_Y   3
+#define GAMEPAD_XBOX_AXIS_LT        4       // -1.0(not pressed) --> 1.0(completely pressed)
+#define GAMEPAD_XBOX_AXIS_RT        5       // -1.0(not pressed) --> 1.0(completely pressed)
+
+/*
+// NOTE: For Raspberry Pi, axis must be reconfigured
 #if defined(PLATFORM_RPI)
-    #define GAMEPAD_XBOX_AXIS_DPAD_X    7
-    #define GAMEPAD_XBOX_AXIS_DPAD_Y    6
+    #define GAMEPAD_XBOX_AXIS_LEFT_X    7
+    #define GAMEPAD_XBOX_AXIS_LEFT_Y    6
     #define GAMEPAD_XBOX_AXIS_RIGHT_X   3
     #define GAMEPAD_XBOX_AXIS_RIGHT_Y   4
     #define GAMEPAD_XBOX_AXIS_LT        2
     #define GAMEPAD_XBOX_AXIS_RT        5
-#else
-    #define GAMEPAD_XBOX_BUTTON_UP      10
-    #define GAMEPAD_XBOX_BUTTON_DOWN    12
-    #define GAMEPAD_XBOX_BUTTON_LEFT    13
-    #define GAMEPAD_XBOX_BUTTON_RIGHT   11
-    #define GAMEPAD_XBOX_AXIS_RIGHT_X   4
-    #define GAMEPAD_XBOX_AXIS_RIGHT_Y   3
-    #define GAMEPAD_XBOX_AXIS_LT_RT     2
 #endif
-
-#define GAMEPAD_XBOX_AXIS_LEFT_X    0
-#define GAMEPAD_XBOX_AXIS_LEFT_Y    1
-
-// Android Physic Buttons
-#define ANDROID_BACK            4
-#define ANDROID_MENU            82
-#define ANDROID_VOLUME_UP       24
-#define ANDROID_VOLUME_DOWN     25
+*/
 
 // NOTE: MSC C++ compiler does not support compound literals (C99 feature)
 // Plain structures in C++ (without constructors) can be initialized from { } initializers.
@@ -540,6 +549,21 @@ typedef enum {
     COMPRESSED_ASTC_8x8_RGBA        // 2 bpp
 } TextureFormat;
 
+// Texture parameters: filter mode
+// NOTE 1: Filtering considers mipmaps if available in the texture
+// NOTE 2: Filter is accordingly set for minification and magnification
+typedef enum { 
+    FILTER_POINT = 0,               // No filter, just pixel aproximation
+    FILTER_BILINEAR,                // Linear filtering
+    FILTER_TRILINEAR,               // Trilinear filtering (linear with mipmaps)
+    FILTER_ANISOTROPIC_4X,          // Anisotropic filtering 4x
+    FILTER_ANISOTROPIC_8X,          // Anisotropic filtering 8x
+    FILTER_ANISOTROPIC_16X,         // Anisotropic filtering 16x
+} TextureFilterMode;
+
+// Texture parameters: wrap mode
+typedef enum { WRAP_REPEAT = 0, WRAP_CLAMP, WRAP_MIRROR } TextureWrapMode;
+
 // Color blending modes (pre-defined)
 typedef enum { BLEND_ALPHA = 0, BLEND_ADDITIVE, BLEND_MULTIPLIED } BlendMode;
 
@@ -594,7 +618,7 @@ extern "C" {            // Prevents name mangling of functions
 // Window and Graphics Device Functions (Module: core)
 //------------------------------------------------------------------------------------
 #if defined(PLATFORM_ANDROID)
-RLAPI void InitWindow(int width, int height, struct android_app *state);  // Init Android Activity and OpenGL Graphics
+RLAPI void InitWindow(int width, int height, void *state);        // Init Android Activity and OpenGL Graphics (struct android_app)
 #elif defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) || defined(PLATFORM_WEB)
 RLAPI void InitWindow(int width, int height, const char *title);  // Initialize Window and OpenGL Graphics
 #endif
@@ -606,11 +630,13 @@ RLAPI void ToggleFullscreen(void);                                // Fullscreen
 RLAPI int GetScreenWidth(void);                                   // Get current screen width
 RLAPI int GetScreenHeight(void);                                  // Get current screen height
 
+#if !defined(PLATFORM_ANDROID)
 RLAPI void ShowCursor(void);                                      // Shows cursor
 RLAPI void HideCursor(void);                                      // Hides cursor
 RLAPI bool IsCursorHidden(void);                                  // Returns true if cursor is not visible
 RLAPI void EnableCursor(void);                                    // Enables cursor
 RLAPI void DisableCursor(void);                                   // Disables cursor
+#endif
 
 RLAPI void ClearBackground(Color color);                          // Sets Background Color
 RLAPI void BeginDrawing(void);                                    // Setup drawing canvas to start drawing
@@ -653,7 +679,6 @@ RLAPI int StorageLoadValue(int position);                         // Storage loa
 //------------------------------------------------------------------------------------
 // Input Handling Functions (Module: core)
 //------------------------------------------------------------------------------------
-#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) || defined(PLATFORM_WEB)
 RLAPI bool IsKeyPressed(int key);                             // Detect if a key has been pressed once
 RLAPI bool IsKeyDown(int key);                                // Detect if a key is being pressed
 RLAPI bool IsKeyReleased(int key);                            // Detect if a key has been released once
@@ -662,12 +687,15 @@ RLAPI int GetKeyPressed(void);                                // Get latest key
 RLAPI void SetExitKey(int key);                               // Set a custom key to exit program (default is ESC)
 
 RLAPI bool IsGamepadAvailable(int gamepad);                   // Detect if a gamepad is available
-RLAPI float GetGamepadAxisMovement(int gamepad, int axis);    // Return axis movement value for a gamepad axis
+RLAPI bool IsGamepadName(int gamepad, const char *name);      // Check gamepad name (if available)
+RLAPI const char *GetGamepadName(int gamepad);                // Return gamepad internal name id
 RLAPI bool IsGamepadButtonPressed(int gamepad, int button);   // Detect if a gamepad button has been pressed once
 RLAPI bool IsGamepadButtonDown(int gamepad, int button);      // Detect if a gamepad button is being pressed
 RLAPI bool IsGamepadButtonReleased(int gamepad, int button);  // Detect if a gamepad button has been released once
 RLAPI bool IsGamepadButtonUp(int gamepad, int button);        // Detect if a gamepad button is NOT being pressed
-#endif
+RLAPI int GetGamepadButtonPressed(void);                      // Get the last gamepad button pressed
+RLAPI int GetGamepadAxisCount(int gamepad);                   // Return gamepad axis count for a gamepad
+RLAPI float GetGamepadAxisMovement(int gamepad, int axis);    // Return axis movement value for a gamepad axis
 
 RLAPI bool IsMouseButtonPressed(int button);                  // Detect if a mouse button has been pressed once
 RLAPI bool IsMouseButtonDown(int button);                     // Detect if a mouse button is being pressed
@@ -683,12 +711,6 @@ RLAPI int GetTouchX(void);                                    // Returns touch p
 RLAPI int GetTouchY(void);                                    // Returns touch position Y for touch point 0 (relative to screen size)
 RLAPI Vector2 GetTouchPosition(int index);                    // Returns touch position XY for a touch point index (relative to screen size)
 
-#if defined(PLATFORM_ANDROID)
-bool IsButtonPressed(int button);                       // Detect if an android physic button has been pressed
-bool IsButtonDown(int button);                          // Detect if an android physic button is being pressed
-bool IsButtonReleased(int button);                      // Detect if an android physic button has been released
-#endif
-
 //------------------------------------------------------------------------------------
 // Gestures and Touch Handling Functions (Module: gestures)
 //------------------------------------------------------------------------------------
@@ -762,6 +784,7 @@ RLAPI void UnloadTexture(Texture2D texture);
 RLAPI void UnloadRenderTexture(RenderTexture2D target);                                                  // Unload render texture from GPU memory
 RLAPI Color *GetImageData(Image image);                                                                  // Get pixel data from image as a Color struct array
 RLAPI Image GetTextureData(Texture2D texture);                                                           // Get pixel data from GPU texture and return an Image
+RLAPI void UpdateTexture(Texture2D texture, void *pixels);                                               // Update GPU texture with new data
 RLAPI void ImageToPOT(Image *image, Color fillColor);                                                    // Convert image to POT (power-of-two)
 RLAPI void ImageFormat(Image *image, int newFormat);                                                     // Convert image data to desired format
 RLAPI void ImageAlphaMask(Image *image, Image alphaMask);                                                // Apply alpha mask to image
@@ -783,7 +806,8 @@ RLAPI void ImageColorGrayscale(Image *image);
 RLAPI void ImageColorContrast(Image *image, float contrast);                                             // Modify image color: contrast (-100 to 100)
 RLAPI void ImageColorBrightness(Image *image, int brightness);                                           // Modify image color: brightness (-255 to 255)
 RLAPI void GenTextureMipmaps(Texture2D texture);                                                         // Generate GPU mipmaps for a texture
-RLAPI void UpdateTexture(Texture2D texture, void *pixels);                                               // Update GPU texture with new data
+RLAPI void SetTextureFilter(Texture2D texture, int filterMode);                                          // Set texture scaling filter mode
+RLAPI void SetTextureWrap(Texture2D texture, int wrapMode);                                              // Set texture wrapping mode
 
 RLAPI void DrawTexture(Texture2D texture, int posX, int posY, Color tint);                               // Draw a Texture2D
 RLAPI void DrawTextureV(Texture2D texture, Vector2 position, Color tint);                                // Draw a Texture2D with position defined as Vector2
@@ -797,6 +821,7 @@ RLAPI void DrawTexturePro(Texture2D texture, Rectangle sourceRec, Rectangle dest
 //------------------------------------------------------------------------------------
 RLAPI SpriteFont GetDefaultFont(void);                                                                   // Get the default SpriteFont
 RLAPI SpriteFont LoadSpriteFont(const char *fileName);                                                   // Load a SpriteFont image into GPU memory
+RLAPI SpriteFont LoadSpriteFontTTF(const char *fileName, int fontSize, int numChars, int *fontChars);    // Load a SpriteFont from TTF font with parameters
 RLAPI void UnloadSpriteFont(SpriteFont spriteFont);                                                      // Unload SpriteFont from GPU memory
 
 RLAPI void DrawText(const char *text, int posX, int posY, int fontSize, Color color);                    // Draw text (using default font)
@@ -896,7 +921,8 @@ RLAPI void DestroyLight(Light light);                                     // Des
 RLAPI void InitVrDevice(int vdDevice);            // Init VR device
 RLAPI void CloseVrDevice(void);                   // Close VR device
 RLAPI bool IsVrDeviceReady(void);                 // Detect if VR device (or simulator) is ready
-RLAPI void UpdateVrTracking(void);                // Update VR tracking (position and orientation)
+RLAPI bool IsVrSimulator(void);                   // Detect if VR simulator is running
+RLAPI void UpdateVrTracking(Camera *camera);      // Update VR tracking (position and orientation) and camera
 RLAPI void ToggleVrMode(void);                    // Enable/Disable VR experience (device or simulator)
 
 //------------------------------------------------------------------------------------
@@ -912,7 +938,7 @@ RLAPI Sound LoadSound(const char *fileName);                          // Load so
 RLAPI Sound LoadSoundFromWave(Wave wave);                             // Load sound to memory from wave data
 RLAPI Sound LoadSoundFromRES(const char *rresName, int resId);        // Load sound to memory from rRES file (raylib Resource)
 RLAPI void UpdateSound(Sound sound, void *data, int numSamples);      // Update sound buffer with new data
-RLAPI void UnloadWave(Wave wave);
+RLAPI void UnloadWave(Wave wave);                                     // Unload wave data
 RLAPI void UnloadSound(Sound sound);                                  // Unload sound
 RLAPI void PlaySound(Sound sound);                                    // Play a sound
 RLAPI void PauseSound(Sound sound);                                   // Pause a sound

src/rlgl.c

@@ -35,7 +35,7 @@
 #include <math.h>                   // Required for: atan2()
 
 #ifndef RLGL_STANDALONE
-    #include "raymath.h"            // Required for Vector3 and Matrix functions
+    #include "raymath.h"            // Required for: Vector3 and Matrix functions
 #endif
 
 #if defined(GRAPHICS_API_OPENGL_11)
@@ -140,6 +140,14 @@
     #define GL_COMPRESSED_RGBA_ASTC_8x8_KHR     0x93b7
 #endif
 
+#ifndef GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT
+    #define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT   0x84FF
+#endif
+
+#ifndef GL_TEXTURE_MAX_ANISOTROPY_EXT
+    #define GL_TEXTURE_MAX_ANISOTROPY_EXT       0x84FE
+#endif
+
 #if defined(GRAPHICS_API_OPENGL_11)
     #define GL_UNSIGNED_SHORT_5_6_5     0x8363
     #define GL_UNSIGNED_SHORT_5_5_5_1   0x8034
@@ -283,14 +291,21 @@ static Shader standardShader;               // Shader with support for lighting
 static Shader currentShader;                // Shader to be used on rendering (by default, defaultShader)
 static bool standardShaderLoaded = false;   // Flag to track if standard shader has been loaded
 
-// Flags for supported extensions
+// Extension supported flag: VAO
 static bool vaoSupported = false;           // VAO support (OpenGL ES2 could not support VAO extension)
 
-// Compressed textures support flags
+// Extension supported flag: Compressed textures
 static bool texCompETC1Supported = false;   // ETC1 texture compression support
 static bool texCompETC2Supported = false;   // ETC2/EAC texture compression support
 static bool texCompPVRTSupported = false;   // PVR texture compression support
 static bool texCompASTCSupported = false;   // ASTC texture compression support
+
+// Extension supported flag: Anisotropic filtering
+static bool texAnisotropicFilterSupported = false;  // Anisotropic texture filtering support
+static float maxAnisotropicLevel = 0.0f;        // Maximum anisotropy level supported (minimum is 2.0f)
+
+// Extension supported flag: Clamp mirror wrap mode
+static bool texClampMirrorSupported = false;    // Clamp mirror wrap mode supported
 #endif
 
 #if defined(RLGL_OCULUS_SUPPORT)
@@ -372,11 +387,11 @@ static char *ReadTextFile(const char *fileName);        // Read chars array from
 
 #if defined(RLGL_OCULUS_SUPPORT)
 #if !defined(RLGL_STANDALONE)
-static bool InitOculusDevice(void);         // Initialize Oculus device (returns true if success)
-static void CloseOculusDevice(void);        // Close Oculus device
-static void UpdateOculusTracking(void);     // Update Oculus head position-orientation tracking
-static void BeginOculusDrawing(void);       // Setup Oculus buffers for drawing
-static void EndOculusDrawing(void);         // Finish Oculus drawing and blit framebuffer to mirror
+static bool InitOculusDevice(void);                 // Initialize Oculus device (returns true if success)
+static void CloseOculusDevice(void);                // Close Oculus device
+static void UpdateOculusTracking(Camera *camera);   // Update Oculus head position-orientation tracking
+static void BeginOculusDrawing(void);               // Setup Oculus buffers for drawing
+static void EndOculusDrawing(void);                 // Finish Oculus drawing and blit framebuffer to mirror
 #endif
 
 static OculusBuffer LoadOculusBuffer(ovrSession session, int width, int height);    // Load Oculus required buffers
@@ -871,6 +886,37 @@ void rlDisableTexture(void)
 #endif
 }
 
+// Set texture parameters (wrap mode/filter mode)
+void rlTextureParameters(unsigned int id, int param, int value)
+{
+    glBindTexture(GL_TEXTURE_2D, id);
+
+    switch (param)
+    {
+        case RL_TEXTURE_WRAP_S:
+        case RL_TEXTURE_WRAP_T:
+        {
+            if ((value == RL_WRAP_CLAMP_MIRROR) && !texClampMirrorSupported) TraceLog(WARNING, "Clamp mirror wrap mode not supported");
+            else glTexParameteri(GL_TEXTURE_2D, param, value);
+        } break;
+        case RL_TEXTURE_MAG_FILTER:
+        case RL_TEXTURE_MIN_FILTER: glTexParameteri(GL_TEXTURE_2D, param, value); break;
+        case RL_TEXTURE_ANISOTROPIC_FILTER:
+        {
+            if (value <= maxAnisotropicLevel) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, value);
+            else if (maxAnisotropicLevel > 0.0f)
+            {
+                TraceLog(WARNING, "[TEX ID %i] Maximum anisotropic filter level supported is %iX", id, maxAnisotropicLevel);
+                glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, value);
+            }
+            else TraceLog(WARNING, "Anisotropic filtering not supported");
+        } break;
+        default: break;
+    }
+
+    glBindTexture(GL_TEXTURE_2D, 0);
+}
+
 // Enable rendering to texture (fbo)
 void rlEnableRenderTexture(unsigned int id)
 {
@@ -1124,7 +1170,7 @@ void rlglInit(int width, int height)
         // Check NPOT textures support
         // NOTE: Only check on OpenGL ES, OpenGL 3.3 has NPOT textures full support as core feature
         if (strcmp(extList[i], (const char *)"GL_OES_texture_npot") == 0) npotSupported = true;
-#endif   
+#endif
         
         // DDS texture compression support
         if ((strcmp(extList[i], (const char *)"GL_EXT_texture_compression_s3tc") == 0) ||
@@ -1143,6 +1189,16 @@ void rlglInit(int width, int height)
 
         // ASTC texture compression support
         if (strcmp(extList[i], (const char *)"GL_KHR_texture_compression_astc_hdr") == 0) texCompASTCSupported = true;
+        
+        // Anisotropic texture filter support
+        if (strcmp(extList[i], (const char *)"GL_EXT_texture_filter_anisotropic") == 0)
+        {
+            texAnisotropicFilterSupported = true;
+            glGetFloatv(0x84FF, &maxAnisotropicLevel);   // GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT      
+        }
+        
+        // Clamp mirror wrap mode supported
+        if (strcmp(extList[i], (const char *)"GL_EXT_texture_mirror_clamp") == 0) texClampMirrorSupported = true;
     }
     
 #ifdef _MSC_VER
@@ -1162,6 +1218,9 @@ void rlglInit(int width, int height)
     if (texCompETC2Supported) TraceLog(INFO, "[EXTENSION] ETC2/EAC compressed textures supported");
     if (texCompPVRTSupported) TraceLog(INFO, "[EXTENSION] PVRT compressed textures supported");
     if (texCompASTCSupported) TraceLog(INFO, "[EXTENSION] ASTC compressed textures supported");
+    
+    if (texAnisotropicFilterSupported) TraceLog(INFO, "[EXTENSION] Anisotropic textures filtering supported (max: %.0fX)", maxAnisotropicLevel);
+    if (texClampMirrorSupported) TraceLog(INFO, "[EXTENSION] Clamp mirror wrap texture mode supported");
 
     // Initialize buffers, default shaders and default textures
     //----------------------------------------------------------
@@ -1522,7 +1581,7 @@ RenderTexture2D rlglLoadRenderTexture(int width, int height)
     target.texture.id = 0;
     target.texture.width = width;
     target.texture.height = height;
-    target.texture.format = UNCOMPRESSED_R8G8B8;
+    target.texture.format = UNCOMPRESSED_R8G8B8A8;
     target.texture.mipmaps = 1;
     
     target.depth.id = 0;
@@ -1539,7 +1598,7 @@ RenderTexture2D rlglLoadRenderTexture(int width, int height)
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
     glBindTexture(GL_TEXTURE_2D, 0);
     
 #if defined(GRAPHICS_API_OPENGL_33)
@@ -1687,6 +1746,7 @@ void rlglGenerateMipmaps(Texture2D texture)
 #endif
 
 #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)
+        //glHint(GL_GENERATE_MIPMAP_HINT, GL_DONT_CARE);   // Hint for mipmaps generation algorythm: GL_FASTEST, GL_NICEST, GL_DONT_CARE
         glGenerateMipmap(GL_TEXTURE_2D);    // Generate mipmaps automatically
         TraceLog(INFO, "[TEX ID %i] Mipmaps generated automatically", texture.id);
 
@@ -2653,7 +2713,7 @@ void InitVrDevice(int vrDevice)
             hmd.hResolution = 2160;                 // HMD horizontal resolution in pixels
             hmd.vResolution = 1200;                 // HMD vertical resolution in pixels
             hmd.hScreenSize = 0.133793f;            // HMD horizontal size in meters
-            hmd.vScreenSize = 0.0669;               // HMD vertical size in meters
+            hmd.vScreenSize = 0.0669f;              // HMD vertical size in meters
             hmd.vScreenCenter = 0.04678f;           // HMD screen center in meters
             hmd.eyeToScreenDistance = 0.041f;       // HMD distance between eye and display in meters
             hmd.lensSeparationDistance = 0.07f;     // HMD lens separation distance in meters
@@ -2710,6 +2770,12 @@ bool IsVrDeviceReady(void)
     return (vrDeviceReady || vrSimulator) && vrEnabled;
 }
 
+// Detect if VR simulator is running
+bool IsVrSimulator(void)
+{
+    return vrSimulator;
+}
+
 // Enable/Disable VR experience (device or simulator)
 void ToggleVrMode(void)
 {
@@ -2728,16 +2794,13 @@ void ToggleVrMode(void)
 #endif
 }
 
-// Update VR tracking (position and orientation)
-void UpdateVrTracking(void)
+// Update VR tracking (position and orientation) and camera
+// NOTE: Camera (position, target, up) gets update with head tracking information
+void UpdateVrTracking(Camera *camera)
 {
 #if defined(RLGL_OCULUS_SUPPORT)
-    if (vrDeviceReady) UpdateOculusTracking();
-    else
+    if (vrDeviceReady) UpdateOculusTracking(camera);
 #endif
-    {
-        // TODO: Use alternative inputs (mouse, keyboard) to simulate tracking data (eyes position/orientation)
-    }
 }
 
 // Begin Oculus drawing configuration
@@ -3779,8 +3842,8 @@ static void SetStereoConfig(VrDeviceInfo hmd)
 
     // Compute lens parameters
     float lensShift = (hmd.hScreenSize*0.25f - hmd.lensSeparationDistance*0.5f)/hmd.hScreenSize;
-    float leftLensCenter[2] = { 0.25 + lensShift, 0.5f };
-    float rightLensCenter[2] = { 0.75 - lensShift, 0.5f };
+    float leftLensCenter[2] = { 0.25f + lensShift, 0.5f };
+    float rightLensCenter[2] = { 0.75f - lensShift, 0.5f };
     float leftScreenCenter[2] = { 0.25f, 0.5f };
     float rightScreenCenter[2] = { 0.75f, 0.5f };
     
@@ -3797,8 +3860,8 @@ static void SetStereoConfig(VrDeviceInfo hmd)
     
     float normScreenWidth = 0.5f;
     float normScreenHeight = 1.0f;
-    float scaleIn[2] = { 2/normScreenWidth, 2/normScreenHeight/aspect };
-    float scale[2] = { normScreenWidth*0.5/distortionScale, normScreenHeight*0.5*aspect/distortionScale };
+    float scaleIn[2] = { 2.0f/normScreenWidth, 2.0f/normScreenHeight/aspect };
+    float scale[2] = { normScreenWidth*0.5f/distortionScale, normScreenHeight*0.5f*aspect/distortionScale };
     
     TraceLog(DEBUG, "VR: Distortion Shader: LeftLensCenter = { %f, %f }", leftLensCenter[0], leftLensCenter[1]);
     TraceLog(DEBUG, "VR: Distortion Shader: RightLensCenter = { %f, %f }", rightLensCenter[0], rightLensCenter[1]);
@@ -4076,7 +4139,7 @@ OCULUSAPI void CloseOculusDevice(void)
 }
 
 // Update Oculus head position-orientation tracking
-OCULUSAPI void UpdateOculusTracking(void)
+OCULUSAPI void UpdateOculusTracking(Camera *camera)
 {
     frameIndex++;
 
@@ -4086,6 +4149,10 @@ OCULUSAPI void UpdateOculusTracking(void)
     layer.eyeLayer.RenderPose[0] = eyePoses[0];
     layer.eyeLayer.RenderPose[1] = eyePoses[1];
     
+    // TODO: Update external camera with eyePoses data (position, orientation)
+    // NOTE: We can simplify to simple camera if we consider IPD and HMD device configuration again later
+    // it will be useful for the user to draw, lets say, billboards oriented to camera
+    
     // Get session status information
     ovrSessionStatus sessionStatus;
     ovr_GetSessionStatus(session, &sessionStatus);

src/rlgl.h

@@ -90,15 +90,33 @@
     #define MAX_QUADS_BATCH         1024    // Be careful with text, every letter maps a quad
 #endif
 
+// Texture parameters (equivalent to OpenGL defines)
+#define RL_TEXTURE_WRAP_S               0x2802      // GL_TEXTURE_WRAP_S
+#define RL_TEXTURE_WRAP_T               0x2803      // GL_TEXTURE_WRAP_T
+#define RL_TEXTURE_MAG_FILTER           0x2800      // GL_TEXTURE_MAG_FILTER
+#define RL_TEXTURE_MIN_FILTER           0x2801      // GL_TEXTURE_MIN_FILTER
+#define RL_TEXTURE_ANISOTROPIC_FILTER   0x3000      // Anisotropic filter (custom identifier)
+
+#define RL_FILTER_NEAREST               0x2600      // GL_NEAREST
+#define RL_FILTER_LINEAR                0x2601      // GL_LINEAR
+#define RL_FILTER_MIP_NEAREST           0x2700      // GL_NEAREST_MIPMAP_NEAREST
+#define RL_FILTER_NEAREST_MIP_LINEAR    0x2702      // GL_NEAREST_MIPMAP_LINEAR
+#define RL_FILTER_LINEAR_MIP_NEAREST    0x2701      // GL_LINEAR_MIPMAP_NEAREST
+#define RL_FILTER_MIP_LINEAR            0x2703      // GL_LINEAR_MIPMAP_LINEAR
+
+#define RL_WRAP_REPEAT                  0x2901      // GL_REPEAT
+#define RL_WRAP_CLAMP                   0x812F      // GL_CLAMP_TO_EDGE
+#define RL_WRAP_CLAMP_MIRROR            0x8742      // GL_MIRROR_CLAMP_EXT
+
 //----------------------------------------------------------------------------------
 // Types and Structures Definition
 //----------------------------------------------------------------------------------
+typedef enum { OPENGL_11 = 1, OPENGL_21, OPENGL_33, OPENGL_ES_20 } GlVersion;
+
 typedef enum { RL_PROJECTION, RL_MODELVIEW, RL_TEXTURE } MatrixMode;
 
 typedef enum { RL_LINES, RL_TRIANGLES, RL_QUADS } DrawMode;
 
-typedef enum { OPENGL_11 = 1, OPENGL_21, OPENGL_33, OPENGL_ES_20 } GlVersion;
-
 #if defined(RLGL_STANDALONE)
     #ifndef __cplusplus
     // Boolean type
@@ -236,6 +254,21 @@ typedef enum { OPENGL_11 = 1, OPENGL_21, OPENGL_33, OPENGL_ES_20 } GlVersion;
 
     // Light types
     typedef enum { LIGHT_POINT, LIGHT_DIRECTIONAL, LIGHT_SPOT } LightType;
+    
+    // Texture parameters: filter mode
+    // NOTE 1: Filtering considers mipmaps if available in the texture
+    // NOTE 2: Filter is accordingly set for minification and magnification
+    typedef enum { 
+        FILTER_POINT = 0,               // No filter, just pixel aproximation
+        FILTER_BILINEAR,                // Linear filtering
+        FILTER_TRILINEAR,               // Trilinear filtering (linear with mipmaps)
+        FILTER_ANISOTROPIC_4X,          // Anisotropic filtering 4x
+        FILTER_ANISOTROPIC_8X,          // Anisotropic filtering 8x
+        FILTER_ANISOTROPIC_16X,         // Anisotropic filtering 16x
+    } TextureFilterMode;
+    
+    // Texture parameters: wrap mode
+    typedef enum { WRAP_REPEAT = 0, WRAP_CLAMP, WRAP_MIRROR } TextureWrapMode;
 
     // Color blending modes (pre-defined)
     typedef enum { BLEND_ALPHA = 0, BLEND_ADDITIVE, BLEND_MULTIPLIED } BlendMode;
@@ -296,6 +329,7 @@ void rlColor4f(float x, float y, float z, float w); // Define one vertex (color)
 //------------------------------------------------------------------------------------
 void rlEnableTexture(unsigned int id);          // Enable texture usage
 void rlDisableTexture(void);                    // Disable texture usage
+void rlTextureParameters(unsigned int id, int param, int value); // Set texture parameters (filter, wrap)
 void rlEnableRenderTexture(unsigned int id);    // Enable render texture (fbo)
 void rlDisableRenderTexture(void);              // Disable render texture (fbo), return to default framebuffer
 void rlEnableDepthTest(void);                   // Enable depth test
@@ -375,13 +409,13 @@ float *MatrixToFloat(Matrix mat);
 void InitVrDevice(int vrDevice);            // Init VR device
 void CloseVrDevice(void);                   // Close VR device
 bool IsVrDeviceReady(void);                 // Detect if VR device (or simulator) is ready
-void UpdateVrTracking(void);                // Update VR tracking (position and orientation)
+void UpdateVrTracking(Camera *camera);      // Update VR tracking (position and orientation) and camera
 void ToggleVrMode(void);                    // Enable/Disable VR experience (device or simulator)
 
 // Oculus Rift API for direct access the device (no simulator)
 bool InitOculusDevice(void);                // Initialize Oculus device (returns true if success)
 void CloseOculusDevice(void);               // Close Oculus device
-void UpdateOculusTracking(void);            // Update Oculus head position-orientation tracking
+void UpdateOculusTracking(Camera *camera);  // Update Oculus head position-orientation tracking (and camera)
 void BeginOculusDrawing(void);              // Setup Oculus buffers for drawing
 void EndOculusDrawing(void);                // Finish Oculus drawing and blit framebuffer to mirror
 #endif

src/rlua.h

@@ -2824,6 +2824,28 @@ int lua_IsAudioDeviceReady(lua_State* L)
     return 1;
 }
 
+int lua_LoadWave(lua_State* L)
+{
+    const char * arg1 = LuaGetArgument_string(L, 1);
+    Wave result = LoadWave((char *)arg1);
+    LuaPush_Wave(L, result);
+    return 1;
+}
+
+int lua_LoadWaveEx(lua_State* L)
+{
+    // TODO: Wave LoadWaveEx(float *data, int sampleCount, int sampleRate, int sampleSize, int channels);
+    
+    int arg1 = 0;
+    int arg2 = LuaGetArgument_int(L, 2);
+    int arg3 = LuaGetArgument_int(L, 3);
+    int arg4 = LuaGetArgument_int(L, 4);
+    int arg5 = LuaGetArgument_int(L, 5);
+    Wave result = LoadWaveEx(arg1, arg2, arg3, arg4, arg5);
+    LuaPush_Wave(L, result);
+    return 1;
+}
+
 int lua_LoadSound(lua_State* L)
 {
     const char * arg1 = LuaGetArgument_string(L, 1);
@@ -2849,6 +2871,22 @@ int lua_LoadSoundFromRES(lua_State* L)
     return 1;
 }
 
+int lua_UpdateSound(lua_State* L)
+{
+    Sound arg1 = LuaGetArgument_Sound(L, 1);
+    const char * arg2 = LuaGetArgument_string(L, 2);
+    int * arg3 = LuaGetArgument_int(L, 3);
+    UpdateSound(arg1, arg2, arg3);
+    return 0;
+}
+
+int lua_UnloadWave(lua_State* L)
+{
+    Wave arg1 = LuaGetArgument_Wave(L, 1);
+    UnloadWave(arg1);
+    return 0;
+}
+
 int lua_UnloadSound(lua_State* L)
 {
     Sound arg1 = LuaGetArgument_Sound(L, 1);
@@ -2908,6 +2946,43 @@ int lua_SetSoundPitch(lua_State* L)
     return 0;
 }
 
+int lua_WaveFormat(lua_State* L)
+{
+    Wave arg1 = LuaGetArgument_Wave(L, 1);
+    int arg2 = LuaGetArgument_int(L, 2);
+    int arg3 = LuaGetArgument_int(L, 3);
+    int arg4 = LuaGetArgument_int(L, 4);
+    WaveFormat(arg1, arg2, arg3, arg4);
+    return 0;
+}
+
+int lua_LoadMusicStream(lua_State* L)
+{
+    Wave arg1 = LuaGetArgument_Wave(L, 1);
+    Wave result = WaveCopy(arg1);
+    LuaPush_Wave(L, result);
+    return 1;
+}
+
+int lua_WaveCrop(lua_State* L)
+{
+    Wave arg1 = LuaGetArgument_Wave(L, 1);
+    int arg2 = LuaGetArgument_int(L, 2);
+    int arg3 = LuaGetArgument_int(L, 3);
+    WaveCrop(arg1, arg2, arg3);
+    return 0;
+}
+
+int lua_GetWaveData(lua_State* L)
+{
+    // TODO: float *GetWaveData(Wave wave);
+    
+    Wave arg1 = LuaGetArgument_Wave(L, 1);
+    float result = GetWaveData(arg1);
+    LuaPush_float(L, result);
+    return 1;
+}
+
 int lua_LoadMusicStream(lua_State* L)
 {
     const char * arg1 = LuaGetArgument_string(L, 1);
@@ -3799,9 +3874,13 @@ static luaL_Reg raylib_functions[] = {
     REG(InitAudioDevice)
     REG(CloseAudioDevice)
     REG(IsAudioDeviceReady)
+    REG(LoadWave)
+    REG(LoadWaveEx)
     REG(LoadSound)
     REG(LoadSoundFromWave)
     REG(LoadSoundFromRES)
+    REG(UpdateSound)
+    REG(UnloadWave)
     REG(UnloadSound)
     REG(PlaySound)
     REG(PauseSound)
@@ -3810,6 +3889,10 @@ static luaL_Reg raylib_functions[] = {
     REG(IsSoundPlaying)
     REG(SetSoundVolume)
     REG(SetSoundPitch)
+    REG(WaveFormat)
+    REG(WaveCopy)
+    REG(WaveCrop)
+    REG(GetWaveData)
 
     REG(LoadMusicStream)
     REG(UnloadMusicStream)

src/shader_standard.h

@@ -90,7 +90,7 @@ static const char fStandardShaderStr[] =
 "    if (diff > 0.0)\n"
 "    {\n"
 "        vec3 h = normalize(-l.direction + v);\n"
-"        spec = pow(dot(n, h), 3.0 + glossiness)*s;\n"
+"        spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;\n"
 "    }\n"
 "    return (diff*l.diffuse.rgb + spec*colSpecular.rgb);\n"
 "}\n"
@@ -103,7 +103,7 @@ static const char fStandardShaderStr[] =
 "    if (diff > 0.0)\n"
 "    {\n"
 "        vec3 h = normalize(lightDir + v);\n"
-"        spec = pow(dot(n, h), 3.0 + glossiness)*s;\n"
+"        spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;\n"
 "    }\n"
 "    return (diff*l.intensity*l.diffuse.rgb + spec*colSpecular.rgb);\n"
 "}\n"
@@ -124,7 +124,7 @@ static const char fStandardShaderStr[] =
 "    if (diffAttenuation > 0.0)\n"
 "    {\n"
 "        vec3 h = normalize(lightDir + v);\n"
-"        spec = pow(dot(n, h), 3.0 + glossiness)*s;\n"
+"        spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;\n"
 "    }\n"
 "    return (falloff*(diffAttenuation*l.diffuse.rgb + spec*colSpecular.rgb));\n"
 "}\n"
@@ -152,9 +152,9 @@ static const char fStandardShaderStr[] =
 "    }\n"
 "    float spec = 1.0;\n"
 #if defined(GRAPHICS_API_OPENGL_ES2) || defined(GRAPHICS_API_OPENGL_21)
-"    if (useSpecular == 1) spec *= normalize(texture2D(texture2, fragTexCoord).r);\n"
+"    if (useSpecular == 1) spec = texture2D(texture2, fragTexCoord).r;\n"
 #elif defined(GRAPHICS_API_OPENGL_33)
-"    if (useSpecular == 1) spec *= normalize(texture(texture2, fragTexCoord).r);\n"
+"    if (useSpecular == 1) spec = texture(texture2, fragTexCoord).r;\n"
 #endif
 "    for (int i = 0; i < maxLights; i++)\n"
 "    {\n"

src/shapes.c

@@ -4,7 +4,7 @@
 *
 *   Basic functions to draw 2d Shapes and check collisions
 *
-*   Copyright (c) 2014 Ramon Santamaria (@raysan5)
+*   Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
 *
 *   This software is provided "as-is", without any express or implied warranty. In no event
 *   will the authors be held liable for any damages arising from the use of this software.
@@ -25,9 +25,8 @@
 
 #include "raylib.h"
 
-#include <stdlib.h>     // Required for abs() function
-#include <math.h>       // Math related functions, sin() and cos() used on DrawCircle*
-                        // sqrt() and pow() and abs() used on CheckCollision*
+#include <stdlib.h>     // Required for: abs()
+#include <math.h>       // Required for: sinf(), cosf(), sqrtf()
 
 #include "rlgl.h"       // raylib OpenGL abstraction layer to OpenGL 1.1, 3.3+ or ES2
 
@@ -71,7 +70,7 @@ void DrawPixelV(Vector2 position, Color color)
     rlBegin(RL_LINES);
         rlColor4ub(color.r, color.g, color.b, color.a);
         rlVertex2f(position.x, position.y);
-        rlVertex2i(position.x + 1, position.y + 1);
+        rlVertex2f(position.x + 1.0f, position.y + 1.0f);
     rlEnd();
 }
 
@@ -98,7 +97,7 @@ void DrawLineV(Vector2 startPos, Vector2 endPos, Color color)
 // Draw a color-filled circle
 void DrawCircle(int centerX, int centerY, float radius, Color color)
 {
-    DrawCircleV((Vector2){ centerX, centerY }, radius, color);
+    DrawCircleV((Vector2){ (float)centerX, (float)centerY }, radius, color);
 }
 
 // Draw a gradient-filled circle
@@ -111,9 +110,9 @@ void DrawCircleGradient(int centerX, int centerY, float radius, Color color1, Co
             rlColor4ub(color1.r, color1.g, color1.b, color1.a);
             rlVertex2i(centerX, centerY);
             rlColor4ub(color2.r, color2.g, color2.b, color2.a);
-            rlVertex2f(centerX + sin(DEG2RAD*i)*radius, centerY + cos(DEG2RAD*i)*radius);
+            rlVertex2f(centerX + sinf(DEG2RAD*i)*radius, centerY + cosf(DEG2RAD*i)*radius);
             rlColor4ub(color2.r, color2.g, color2.b, color2.a);
-            rlVertex2f(centerX + sin(DEG2RAD*(i + 10))*radius, centerY + cos(DEG2RAD*(i + 10))*radius);
+            rlVertex2f(centerX + sinf(DEG2RAD*(i + 10))*radius, centerY + cosf(DEG2RAD*(i + 10))*radius);
         }
     rlEnd();
 }
@@ -129,9 +128,9 @@ void DrawCircleV(Vector2 center, float radius, Color color)
             {
                 rlColor4ub(color.r, color.g, color.b, color.a);
                 
-                rlVertex2i(center.x, center.y);
-                rlVertex2f(center.x + sin(DEG2RAD*i)*radius, center.y + cos(DEG2RAD*i)*radius);
-                rlVertex2f(center.x + sin(DEG2RAD*(i + 10))*radius, center.y + cos(DEG2RAD*(i + 10))*radius);
+                rlVertex2f(center.x, center.y);
+                rlVertex2f(center.x + sinf(DEG2RAD*i)*radius, center.y + cosf(DEG2RAD*i)*radius);
+                rlVertex2f(center.x + sinf(DEG2RAD*(i + 10))*radius, center.y + cosf(DEG2RAD*(i + 10))*radius);
             }
         rlEnd();
     }
@@ -144,10 +143,10 @@ void DrawCircleV(Vector2 center, float radius, Color color)
             {
                 rlColor4ub(color.r, color.g, color.b, color.a);
                 
-                rlVertex2i(center.x, center.y);
-                rlVertex2f(center.x + sin(DEG2RAD*i)*radius, center.y + cos(DEG2RAD*i)*radius);
-                rlVertex2f(center.x + sin(DEG2RAD*(i + 10))*radius, center.y + cos(DEG2RAD*(i + 10))*radius);
-                rlVertex2f(center.x + sin(DEG2RAD*(i + 20))*radius, center.y + cos(DEG2RAD*(i + 20))*radius);
+                rlVertex2f(center.x, center.y);
+                rlVertex2f(center.x + sinf(DEG2RAD*i)*radius, center.y + cosf(DEG2RAD*i)*radius);
+                rlVertex2f(center.x + sinf(DEG2RAD*(i + 10))*radius, center.y + cosf(DEG2RAD*(i + 10))*radius);
+                rlVertex2f(center.x + sinf(DEG2RAD*(i + 20))*radius, center.y + cosf(DEG2RAD*(i + 20))*radius);
             }
         rlEnd();
         
@@ -164,8 +163,8 @@ void DrawCircleLines(int centerX, int centerY, float radius, Color color)
         // NOTE: Circle outline is drawn pixel by pixel every degree (0 to 360)
         for (int i = 0; i < 360; i += 10)
         {
-            rlVertex2f(centerX + sin(DEG2RAD*i)*radius, centerY + cos(DEG2RAD*i)*radius);
-            rlVertex2f(centerX + sin(DEG2RAD*(i + 10))*radius, centerY + cos(DEG2RAD*(i + 10))*radius);
+            rlVertex2f(centerX + sinf(DEG2RAD*i)*radius, centerY + cosf(DEG2RAD*i)*radius);
+            rlVertex2f(centerX + sinf(DEG2RAD*(i + 10))*radius, centerY + cosf(DEG2RAD*(i + 10))*radius);
         }
    rlEnd();
 }
@@ -330,9 +329,9 @@ void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color col
             {
                 rlColor4ub(color.r, color.g, color.b, color.a);
 
-                rlVertex2i(0, 0);
-                rlVertex2f(sin(DEG2RAD*i)*radius, cos(DEG2RAD*i)*radius);
-                rlVertex2f(sin(DEG2RAD*(i + 360/sides))*radius, cos(DEG2RAD*(i + 360/sides))*radius);
+                rlVertex2f(0, 0);
+                rlVertex2f(sinf(DEG2RAD*i)*radius, cosf(DEG2RAD*i)*radius);
+                rlVertex2f(sinf(DEG2RAD*(i + 360/sides))*radius, cosf(DEG2RAD*(i + 360/sides))*radius);
             }
         rlEnd();
     rlPopMatrix();
@@ -434,7 +433,7 @@ bool CheckCollisionCircles(Vector2 center1, float radius1, Vector2 center2, floa
     float dx = center2.x - center1.x;      // X distance between centers
     float dy = center2.y - center1.y;      // Y distance between centers
 
-    float distance = sqrt(dx*dx + dy*dy);  // Distance between centers
+    float distance = sqrtf(dx*dx + dy*dy); // Distance between centers
 
     if (distance <= (radius1 + radius2)) collision = true;
 
@@ -457,7 +456,7 @@ bool CheckCollisionCircleRec(Vector2 center, float radius, Rectangle rec)
     if (dx <= (rec.width/2)) { return true; } 
     if (dy <= (rec.height/2)) { return true; }
 
-    float cornerDistanceSq = pow(dx - rec.width/2, 2) + pow(dy - rec.height/2, 2);
+    float cornerDistanceSq = (dx - rec.width/2)*(dx - rec.width/2) + (dy - rec.height/2)*(dy - rec.height/2);
 
     return (cornerDistanceSq <= (radius*radius));
 }

src/text.c

@@ -4,7 +4,7 @@
 *
 *   Basic functions to load SpriteFonts and draw Text
 *
-*   Copyright (c) 2014 Ramon Santamaria (@raysan5)
+*   Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
 *
 *   This software is provided "as-is", without any express or implied warranty. In no event
 *   will the authors be held liable for any damages arising from the use of this software.
@@ -30,9 +30,10 @@
 #include <stdarg.h>         // Required for: va_list, va_start(), vfprintf(), va_end()
 #include <stdio.h>          // Required for: FILE, fopen(), fclose(), fscanf(), feof(), rewind(), fgets()
 
-#include "utils.h"          // Required for: GetExtension()
+#include "utils.h"          // Required for: GetExtension(), GetNextPOT()
 
 // Following libs are used on LoadTTF()
+//#define STBTT_STATIC
 #define STB_TRUETYPE_IMPLEMENTATION
 #include "external/stb_truetype.h"      // Required for: stbtt_BakeFontBitmap()
 
@@ -43,7 +44,6 @@
 //----------------------------------------------------------------------------------
 // Defines and Macros
 //----------------------------------------------------------------------------------
-#define FONT_FIRST_CHAR         32      // NOTE: Expected first char for a sprite font
 #define MAX_FORMATTEXT_LENGTH   64
 #define MAX_SUBTEXT_LENGTH      64
 
@@ -68,12 +68,12 @@ static SpriteFont defaultFont;        // Default font provided by raylib
 //----------------------------------------------------------------------------------
 // Module specific Functions Declaration
 //----------------------------------------------------------------------------------
+static int GetCharIndex(SpriteFont font, int letter);
+
 static SpriteFont LoadImageFont(Image image, Color key, int firstChar); // Load a Image font file (XNA style)
 static SpriteFont LoadRBMF(const char *fileName);   // Load a rBMF font file (raylib BitMap Font)
 static SpriteFont LoadBMFont(const char *fileName); // Load a BMFont file (AngelCode font file)
-
-// Generate a sprite font image from TTF data
-static SpriteFont LoadTTF(const char *fileName, int fontSize, int firstChar, int numChars);
+static SpriteFont LoadTTF(const char *fileName, int fontSize, int numChars, int *fontChars); // Load spritefont from TTF data
 
 extern void LoadDefaultFont(void);
 extern void UnloadDefaultFont(void);
@@ -198,7 +198,7 @@ extern void LoadDefaultFont(void)
 
     for (int i = 0; i < defaultFont.numChars; i++)
     {
-        defaultFont.charValues[i] = FONT_FIRST_CHAR + i;  // First char is 32
+        defaultFont.charValues[i] = 32 + i;  // First char is 32
 
         defaultFont.charRecs[i].x = currentPosX;
         defaultFont.charRecs[i].y = charsDivisor + currentLine*(charsHeight + charsDivisor);
@@ -249,17 +249,18 @@ SpriteFont LoadSpriteFont(const char *fileName)
     // Default hardcoded values for ttf file loading
     #define DEFAULT_TTF_FONTSIZE    32      // Font first character (32 - space)
     #define DEFAULT_TTF_NUMCHARS    95      // ASCII 32..126 is 95 glyphs
+    #define DEFAULT_FIRST_CHAR      32      // Expected first char for image spritefont
 
     SpriteFont spriteFont = { 0 };
 
     // Check file extension
     if (strcmp(GetExtension(fileName),"rbmf") == 0) spriteFont = LoadRBMF(fileName);
-    else if (strcmp(GetExtension(fileName),"ttf") == 0) spriteFont = LoadTTF(fileName, DEFAULT_TTF_FONTSIZE, FONT_FIRST_CHAR, DEFAULT_TTF_NUMCHARS);
+    else if (strcmp(GetExtension(fileName),"ttf") == 0) spriteFont = LoadSpriteFontTTF(fileName, DEFAULT_TTF_FONTSIZE, 0, NULL);
     else if (strcmp(GetExtension(fileName),"fnt") == 0) spriteFont = LoadBMFont(fileName);
     else
     {
         Image image = LoadImage(fileName);
-        if (image.data != NULL) spriteFont = LoadImageFont(image, MAGENTA, FONT_FIRST_CHAR);
+        if (image.data != NULL) spriteFont = LoadImageFont(image, MAGENTA, DEFAULT_FIRST_CHAR);
         UnloadImage(image);
     }
 
@@ -268,6 +269,38 @@ SpriteFont LoadSpriteFont(const char *fileName)
         TraceLog(WARNING, "[%s] SpriteFont could not be loaded, using default font", fileName);
         spriteFont = GetDefaultFont();
     }
+    else SetTextureFilter(spriteFont.texture, FILTER_POINT);    // By default we set point filter (best performance)
+
+    return spriteFont;
+}
+
+// Load SpriteFont from TTF file with custom parameters
+// NOTE: You can pass an array with desired characters, those characters should be available in the font
+// if array is NULL, default char set is selected 32..126
+SpriteFont LoadSpriteFontTTF(const char *fileName, int fontSize, int numChars, int *fontChars)
+{
+    SpriteFont spriteFont = { 0 };
+    
+    if (strcmp(GetExtension(fileName),"ttf") == 0) 
+    {
+        if ((fontChars == NULL) || (numChars == 0))
+        {
+            int totalChars = 95;    // Default charset [32..126]
+            
+            int *defaultFontChars = (int *)malloc(totalChars*sizeof(int));
+            
+            for (int i = 0; i < totalChars; i++) defaultFontChars[i] = i + 32; // Default first character: SPACE[32]
+            
+            spriteFont = LoadTTF(fileName, fontSize, totalChars, defaultFontChars);
+        }
+        else spriteFont = LoadTTF(fileName, fontSize, numChars, fontChars);
+    }
+
+    if (spriteFont.texture.id == 0)
+    {
+        TraceLog(WARNING, "[%s] SpriteFont could not be generated, using default font", fileName);
+        spriteFont = GetDefaultFont();
+    }
 
     return spriteFont;
 }
@@ -293,13 +326,17 @@ void UnloadSpriteFont(SpriteFont spriteFont)
 // NOTE: chars spacing is proportional to fontSize
 void DrawText(const char *text, int posX, int posY, int fontSize, Color color)
 {
-    Vector2 position = { (float)posX, (float)posY };
+    // Check if default font has been loaded
+    if (defaultFont.texture.id != 0)
+    {
+        Vector2 position = { (float)posX, (float)posY };
 
-    int defaultFontSize = 10;   // Default Font chars height in pixel
-    if (fontSize < defaultFontSize) fontSize = defaultFontSize;
-    int spacing = fontSize/defaultFontSize;
+        int defaultFontSize = 10;   // Default Font chars height in pixel
+        if (fontSize < defaultFontSize) fontSize = defaultFontSize;
+        int spacing = fontSize/defaultFontSize;
 
-    DrawTextEx(defaultFont, text, position, (float)fontSize, spacing, color);
+        DrawTextEx(GetDefaultFont(), text, position, (float)fontSize, spacing, color);
+    }
 }
 
 // Draw text using SpriteFont
@@ -321,22 +358,18 @@ void DrawTextEx(SpriteFont spriteFont, const char *text, Vector2 position, float
 
     for (int i = 0; i < length; i++)
     {
-        // TODO: Right now we are supposing characters that follow a continous order and start at FONT_FIRST_CHAR,
-        // this sytem can be improved to support any characters order and init value...
-        // An intermediate table could be created to link char values with predefined char position index in chars rectangle array
-
         if ((unsigned char)text[i] == 0xc2)         // UTF-8 encoding identification HACK!
         {
             // Support UTF-8 encoded values from [0xc2 0x80] -> [0xc2 0xbf](¿)
             letter = (unsigned char)text[i + 1];
-            rec = spriteFont.charRecs[letter - FONT_FIRST_CHAR];
+            rec = spriteFont.charRecs[GetCharIndex(spriteFont, (int)letter)];
             i++;
         }
         else if ((unsigned char)text[i] == 0xc3)    // UTF-8 encoding identification HACK!
         {
             // Support UTF-8 encoded values from [0xc3 0x80](À) -> [0xc3 0xbf](ÿ)
             letter = (unsigned char)text[i + 1];
-            rec = spriteFont.charRecs[letter - FONT_FIRST_CHAR + 64];
+            rec = spriteFont.charRecs[GetCharIndex(spriteFont, (int)letter + 64)];
             i++;
         }
         else
@@ -348,17 +381,19 @@ void DrawTextEx(SpriteFont spriteFont, const char *text, Vector2 position, float
                 textOffsetX = 0;
                 rec.x = -1;
             }
-            else rec = spriteFont.charRecs[(int)text[i] - FONT_FIRST_CHAR];
+            else rec = spriteFont.charRecs[GetCharIndex(spriteFont, (int)text[i])];
         }
 
-        if (rec.x > 0)
+        if (rec.x >= 0)
         {
-            DrawTexturePro(spriteFont.texture, rec, (Rectangle){ position.x + textOffsetX + spriteFont.charOffsets[(int)text[i] - FONT_FIRST_CHAR].x*scaleFactor,
-                                                                 position.y + textOffsetY + spriteFont.charOffsets[(int)text[i] - FONT_FIRST_CHAR].y*scaleFactor,
+            int index = GetCharIndex(spriteFont, (int)text[i]);
+            
+            DrawTexturePro(spriteFont.texture, rec, (Rectangle){ position.x + textOffsetX + spriteFont.charOffsets[index].x*scaleFactor,
+                                                                 position.y + textOffsetY + spriteFont.charOffsets[index].y*scaleFactor,
                                                                  rec.width*scaleFactor, rec.height*scaleFactor} , (Vector2){ 0, 0 }, 0.0f, tint);
 
-            if (spriteFont.charAdvanceX[(int)text[i] - FONT_FIRST_CHAR] == 0) textOffsetX += (rec.width*scaleFactor + spacing);
-            else textOffsetX += (spriteFont.charAdvanceX[(int)text[i] - FONT_FIRST_CHAR]*scaleFactor + spacing);
+            if (spriteFont.charAdvanceX[index] == 0) textOffsetX += (rec.width*scaleFactor + spacing);
+            else textOffsetX += (spriteFont.charAdvanceX[index]*scaleFactor + spacing);
         }
     }
 }
@@ -404,13 +439,17 @@ const char *SubText(const char *text, int position, int length)
 // Measure string width for default font
 int MeasureText(const char *text, int fontSize)
 {
-    Vector2 vec;
+    Vector2 vec = { 0.0f, 0.0f };
 
-    int defaultFontSize = 10;   // Default Font chars height in pixel
-    if (fontSize < defaultFontSize) fontSize = defaultFontSize;
-    int spacing = fontSize/defaultFontSize;
+    // Check if default font has been loaded
+    if (defaultFont.texture.id != 0)
+    {
+        int defaultFontSize = 10;   // Default Font chars height in pixel
+        if (fontSize < defaultFontSize) fontSize = defaultFontSize;
+        int spacing = fontSize/defaultFontSize;
 
-    vec = MeasureTextEx(defaultFont, text, fontSize, spacing);
+        vec = MeasureTextEx(GetDefaultFont(), text, fontSize, spacing);
+    }
 
     return (int)vec.x;
 }
@@ -434,8 +473,10 @@ Vector2 MeasureTextEx(SpriteFont spriteFont, const char *text, int fontSize, int
 
         if (text[i] != '\n')
         {
-            if (spriteFont.charAdvanceX[(int)text[i] - FONT_FIRST_CHAR] != 0) textWidth += spriteFont.charAdvanceX[(int)text[i] - FONT_FIRST_CHAR];
-            else textWidth += (spriteFont.charRecs[(int)text[i] - FONT_FIRST_CHAR].width + spriteFont.charOffsets[(int)text[i] - FONT_FIRST_CHAR].x);
+            int index = GetCharIndex(spriteFont, (int)text[i]);
+            
+            if (spriteFont.charAdvanceX[index] != 0) textWidth += spriteFont.charAdvanceX[index];
+            else textWidth += (spriteFont.charRecs[index].width + spriteFont.charOffsets[index].x);
         }
         else
         {
@@ -492,7 +533,28 @@ void DrawFPS(int posX, int posY)
 // Module specific Functions Definition
 //----------------------------------------------------------------------------------
 
-// Load a Image font file (XNA style)
+static int GetCharIndex(SpriteFont font, int letter)
+{
+//#define UNORDERED_CHARSET
+#if defined(UNORDERED_CHARSET)
+    int index = 0;
+    
+    for (int i = 0; i < font.numChars; i++)
+    {
+        if (font.charValues[i] == letter)
+        {
+            index = i;
+            break;
+        }
+    }
+    
+    return index;
+#else
+    return (letter - 32);
+#endif
+}
+
+// Load an Image font file (XNA style)
 static SpriteFont LoadImageFont(Image image, Color key, int firstChar)
 {
     #define COLOR_EQUAL(col1, col2) ((col1.r == col2.r)&&(col1.g == col2.g)&&(col1.b == col2.b)&&(col1.a == col2.a))
@@ -503,8 +565,8 @@ static SpriteFont LoadImageFont(Image image, Color key, int firstChar)
     int x = 0;
     int y = 0;
 
-    // Default number of characters expected supported
-    #define MAX_FONTCHARS          128
+    // Default number of characters supported
+    #define MAX_FONTCHARS          256
 
     // We allocate a temporal arrays for chars data measures,
     // once we get the actual number of chars, we copy data to a sized arrays
@@ -565,15 +627,24 @@ static SpriteFont LoadImageFont(Image image, Color key, int firstChar)
         xPosToRead = charSpacing;
     }
 
-    free(pixels);
-
     TraceLog(DEBUG, "SpriteFont data parsed correctly from image");
+    
+    // NOTE: We need to remove key color borders from image to avoid weird 
+    // artifacts on texture scaling when using FILTER_BILINEAR or FILTER_TRILINEAR
+    for (int i = 0; i < image.height*image.width; i++) if (COLOR_EQUAL(pixels[i], key)) pixels[i] = BLANK;
+
+    // Create a new image with the processed color data (key color replaced by BLANK)
+    Image fontClear = LoadImageEx(pixels, image.width, image.height);
+    
+    free(pixels);    // Free pixels array memory
 
     // Create spritefont with all data parsed from image
     SpriteFont spriteFont = { 0 };
 
-    spriteFont.texture = LoadTextureFromImage(image); // Convert loaded image to OpenGL texture
+    spriteFont.texture = LoadTextureFromImage(fontClear); // Convert processed image to OpenGL texture
     spriteFont.numChars = index;
+    
+    UnloadImage(fontClear);     // Unload processed image once converted to texture
 
     // We got tempCharValues and tempCharsRecs populated with chars data
     // Now we move temp data to sized charValues and charRecs arrays
@@ -803,8 +874,13 @@ static SpriteFont LoadBMFont(const char *fileName)
     strncat(texPath, texFileName, strlen(texFileName));
 
     TraceLog(DEBUG, "[%s] Font texture loading path: %s", fileName, texPath);
+    
+    Image imFont = LoadImage(texPath);
 
-    font.texture = LoadTexture(texPath);
+    if (imFont.format == UNCOMPRESSED_GRAYSCALE) ImageAlphaMask(&imFont, imFont);
+
+    font.texture = LoadTextureFromImage(imFont);
+    
     font.size = fontSize;
     font.numChars = numChars;
     font.charValues = (int *)malloc(numChars*sizeof(int));
@@ -812,22 +888,18 @@ static SpriteFont LoadBMFont(const char *fileName)
     font.charOffsets = (Vector2 *)malloc(numChars*sizeof(Vector2));
     font.charAdvanceX = (int *)malloc(numChars*sizeof(int));
 
+    UnloadImage(imFont);
+    
     free(texPath);
 
     int charId, charX, charY, charWidth, charHeight, charOffsetX, charOffsetY, charAdvanceX;
 
-    bool unorderedChars = false;
-    int firstChar = 0;
-
     for (int i = 0; i < numChars; i++)
     {
         fgets(buffer, MAX_BUFFER_SIZE, fntFile);
         sscanf(buffer, "char id=%i x=%i y=%i width=%i height=%i xoffset=%i yoffset=%i xadvance=%i",
                        &charId, &charX, &charY, &charWidth, &charHeight, &charOffsetX, &charOffsetY, &charAdvanceX);
 
-        if (i == 0) firstChar = charId;
-        else if (i != (charId - firstChar)) unorderedChars = true;
-
         // Save data properly in sprite font
         font.charValues[i] = charId;
         font.charRecs[i] = (Rectangle){ charX, charY, charWidth, charHeight };
@@ -837,11 +909,7 @@ static SpriteFont LoadBMFont(const char *fileName)
 
     fclose(fntFile);
 
-    if (firstChar != FONT_FIRST_CHAR) TraceLog(WARNING, "BMFont not supported: expected SPACE(32) as first character, falling back to default font");
-    else if (unorderedChars) TraceLog(WARNING, "BMFont not supported: unordered chars data, falling back to default font");
-
-    // NOTE: Font data could be not ordered by charId: 32,33,34,35... raylib does not support unordered BMFonts
-    if ((firstChar != FONT_FIRST_CHAR) || (unorderedChars) || (font.texture.id == 0))
+    if (font.texture.id == 0)
     {
         UnloadSpriteFont(font);
         font = GetDefaultFont();
@@ -853,14 +921,17 @@ static SpriteFont LoadBMFont(const char *fileName)
 
 // Generate a sprite font from TTF file data (font size required)
 // TODO: Review texture packing method and generation (use oversampling)
-static SpriteFont LoadTTF(const char *fileName, int fontSize, int firstChar, int numChars)
+static SpriteFont LoadTTF(const char *fileName, int fontSize, int numChars, int *fontChars)
 {
-    // NOTE: Generated font uses some hardcoded values
-    #define FONT_TEXTURE_WIDTH      512     // Font texture width
-    #define FONT_TEXTURE_HEIGHT     512     // Font texture height
+    // NOTE: Font texture size is predicted (being as much conservative as possible)
+    // Predictive method consist of supposing same number of chars by line-column (sqrtf)
+    // and a maximum character width of 3/4 of fontSize... it worked ok with all my tests...
+    int textureSize = GetNextPOT(ceil((float)fontSize*3/4)*ceil(sqrtf((float)numChars)));
+    
+    TraceLog(INFO, "TTF spritefont loading: Predicted texture size: %ix%i", textureSize, textureSize);
 
     unsigned char *ttfBuffer = (unsigned char *)malloc(1 << 25);
-    unsigned char *dataBitmap = (unsigned char *)malloc(FONT_TEXTURE_WIDTH*FONT_TEXTURE_HEIGHT*sizeof(unsigned char));   // One channel bitmap returned!
+    unsigned char *dataBitmap = (unsigned char *)malloc(textureSize*textureSize*sizeof(unsigned char));   // One channel bitmap returned!
     stbtt_bakedchar *charData = (stbtt_bakedchar *)malloc(sizeof(stbtt_bakedchar)*numChars);
 
     SpriteFont font = { 0 };
@@ -869,40 +940,47 @@ static SpriteFont LoadTTF(const char *fileName, int fontSize, int firstChar, int
 
     if (ttfFile == NULL)
     {
-        TraceLog(WARNING, "[%s] FNT file could not be opened", fileName);
+        TraceLog(WARNING, "[%s] TTF file could not be opened", fileName);
         return font;
     }
 
     fread(ttfBuffer, 1, 1<<25, ttfFile);
+    
+    if (fontChars[0] != 32) TraceLog(WARNING, "TTF spritefont loading: first character is not SPACE(32) character");
 
     // NOTE: Using stb_truetype crappy packing method, no guarante the font fits the image...
-    stbtt_BakeFontBitmap(ttfBuffer,0, fontSize, dataBitmap, FONT_TEXTURE_WIDTH, FONT_TEXTURE_HEIGHT, firstChar, numChars, charData);
+    // TODO: Replace this function by a proper packing method and support random chars order,
+    // we already receive a list (fontChars) with the ordered expected characters
+    int result = stbtt_BakeFontBitmap(ttfBuffer, 0, fontSize, dataBitmap, textureSize, textureSize, fontChars[0], numChars, charData);
 
+    //if (result > 0) TraceLog(INFO, "TTF spritefont loading: first unused row of generated bitmap: %i", result);
+    if (result < 0) TraceLog(WARNING, "TTF spritefont loading: Not all the characters fit in the font");
+    
     free(ttfBuffer);
 
     // Convert image data from grayscale to to UNCOMPRESSED_GRAY_ALPHA
-    unsigned char *dataGrayAlpha = (unsigned char *)malloc(FONT_TEXTURE_WIDTH*FONT_TEXTURE_HEIGHT*sizeof(unsigned char)*2); // Two channels
-    int k = 0;
+    unsigned char *dataGrayAlpha = (unsigned char *)malloc(textureSize*textureSize*sizeof(unsigned char)*2); // Two channels
 
-    for (int i = 0; i < FONT_TEXTURE_WIDTH*FONT_TEXTURE_HEIGHT; i++)
+    for (int i = 0, k = 0; i < textureSize*textureSize; i++, k += 2)
     {
         dataGrayAlpha[k] = 255;
         dataGrayAlpha[k + 1] = dataBitmap[i];
-
-        k += 2;
     }
 
     free(dataBitmap);
 
     // Sprite font generation from TTF extracted data
     Image image;
-    image.width = FONT_TEXTURE_WIDTH;
-    image.height = FONT_TEXTURE_HEIGHT;
+    image.width = textureSize;
+    image.height = textureSize;
     image.mipmaps = 1;
     image.format = UNCOMPRESSED_GRAY_ALPHA;
     image.data = dataGrayAlpha;
-
+    
     font.texture = LoadTextureFromImage(image);
+    
+    //WritePNG("generated_ttf_image.png", (unsigned char *)image.data, image.width, image.height, 2);
+    
     UnloadImage(image);     // Unloads dataGrayAlpha
 
     font.size = fontSize;
@@ -914,7 +992,7 @@ static SpriteFont LoadTTF(const char *fileName, int fontSize, int firstChar, int
 
     for (int i = 0; i < font.numChars; i++)
     {
-        font.charValues[i] = i + firstChar;
+        font.charValues[i] = fontChars[i];
 
         font.charRecs[i].x = (int)charData[i].x0;
         font.charRecs[i].y = (int)charData[i].y0;

src/textures.c

@@ -8,7 +8,7 @@
 *       stb_image - Multiple formats image loading (JPEG, PNG, BMP, TGA, PSD, GIF, PIC)
 *                   NOTE: stb_image has been slightly modified, original library: https://github.com/nothings/stb
 *
-*   Copyright (c) 2014 Ramon Santamaria (@raysan5)
+*   Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
 *
 *   This software is provided "as-is", without any express or implied warranty. In no event
 *   will the authors be held liable for any damages arising from the use of this software.
@@ -229,7 +229,7 @@ Image LoadImageRaw(const char *fileName, int width, int height, int format, int
 // TODO: Review function to support multiple color modes
 Image LoadImageFromRES(const char *rresName, int resId)
 {
-    Image image;
+    Image image = { 0 };
     bool found = false;
 
     char id[4];             // rRES file identifier
@@ -442,6 +442,96 @@ void UnloadRenderTexture(RenderTexture2D target)
     if (target.id != 0) rlDeleteRenderTextures(target);
 }
 
+// Set texture scaling filter mode
+void SetTextureFilter(Texture2D texture, int filterMode)
+{
+    switch (filterMode)
+    {
+        case FILTER_POINT:
+        {
+            if (texture.mipmaps > 1)
+            {
+                // RL_FILTER_MIP_NEAREST - tex filter: POINT, mipmaps filter: POINT (sharp switching between mipmaps)
+                rlTextureParameters(texture.id, RL_TEXTURE_MIN_FILTER, RL_FILTER_MIP_NEAREST);
+                
+                // RL_FILTER_NEAREST - tex filter: POINT (no filter), no mipmaps
+                rlTextureParameters(texture.id, RL_TEXTURE_MAG_FILTER, RL_FILTER_NEAREST);
+            }
+            else
+            {
+                // RL_FILTER_NEAREST - tex filter: POINT (no filter), no mipmaps
+                rlTextureParameters(texture.id, RL_TEXTURE_MIN_FILTER, RL_FILTER_NEAREST);
+                rlTextureParameters(texture.id, RL_TEXTURE_MAG_FILTER, RL_FILTER_NEAREST);
+            }
+        } break;
+        case FILTER_BILINEAR:
+        {
+            if (texture.mipmaps > 1)
+            {
+                // RL_FILTER_LINEAR_MIP_NEAREST - tex filter: BILINEAR, mipmaps filter: POINT (sharp switching between mipmaps)
+                // Alternative: RL_FILTER_NEAREST_MIP_LINEAR - tex filter: POINT, mipmaps filter: BILINEAR (smooth transition between mipmaps)
+                rlTextureParameters(texture.id, RL_TEXTURE_MIN_FILTER, RL_FILTER_LINEAR_MIP_NEAREST);
+                
+                // RL_FILTER_LINEAR - tex filter: BILINEAR, no mipmaps
+                rlTextureParameters(texture.id, RL_TEXTURE_MAG_FILTER, RL_FILTER_LINEAR);
+            }
+            else
+            {
+                // RL_FILTER_LINEAR - tex filter: BILINEAR, no mipmaps
+                rlTextureParameters(texture.id, RL_TEXTURE_MIN_FILTER, RL_FILTER_LINEAR);
+                rlTextureParameters(texture.id, RL_TEXTURE_MAG_FILTER, RL_FILTER_LINEAR);
+            }
+        } break;
+        case FILTER_TRILINEAR:
+        {
+            if (texture.mipmaps > 1)
+            {
+                // RL_FILTER_MIP_LINEAR - tex filter: BILINEAR, mipmaps filter: BILINEAR (smooth transition between mipmaps)
+                rlTextureParameters(texture.id, RL_TEXTURE_MIN_FILTER, RL_FILTER_MIP_LINEAR);
+                
+                // RL_FILTER_LINEAR - tex filter: BILINEAR, no mipmaps
+                rlTextureParameters(texture.id, RL_TEXTURE_MAG_FILTER, RL_FILTER_LINEAR);
+            }
+            else
+            {
+                TraceLog(WARNING, "[TEX ID %i] No mipmaps available for TRILINEAR texture filtering", texture.id);
+                
+                // RL_FILTER_LINEAR - tex filter: BILINEAR, no mipmaps
+                rlTextureParameters(texture.id, RL_TEXTURE_MIN_FILTER, RL_FILTER_LINEAR);
+                rlTextureParameters(texture.id, RL_TEXTURE_MAG_FILTER, RL_FILTER_LINEAR);
+            }
+        } break;
+        case FILTER_ANISOTROPIC_4X: rlTextureParameters(texture.id, RL_TEXTURE_ANISOTROPIC_FILTER, 4); break;
+        case FILTER_ANISOTROPIC_8X: rlTextureParameters(texture.id, RL_TEXTURE_ANISOTROPIC_FILTER, 8); break;
+        case FILTER_ANISOTROPIC_16X: rlTextureParameters(texture.id, RL_TEXTURE_ANISOTROPIC_FILTER, 16); break;
+        default: break;
+    }
+}
+
+// Set texture wrapping mode
+void SetTextureWrap(Texture2D texture, int wrapMode)
+{
+    switch (wrapMode)
+    {
+        case WRAP_REPEAT:
+        {
+            rlTextureParameters(texture.id, RL_TEXTURE_WRAP_S, RL_WRAP_REPEAT);
+            rlTextureParameters(texture.id, RL_TEXTURE_WRAP_T, RL_WRAP_REPEAT);
+        } break;
+        case WRAP_CLAMP:
+        {
+            rlTextureParameters(texture.id, RL_TEXTURE_WRAP_S, RL_WRAP_CLAMP);
+            rlTextureParameters(texture.id, RL_TEXTURE_WRAP_T, RL_WRAP_CLAMP);
+        } break;
+        case WRAP_MIRROR:
+        {
+            rlTextureParameters(texture.id, RL_TEXTURE_WRAP_S, RL_WRAP_CLAMP_MIRROR);
+            rlTextureParameters(texture.id, RL_TEXTURE_WRAP_T, RL_WRAP_CLAMP_MIRROR);
+        } break;
+        default: break;
+    }
+}
+
 // Get pixel data from image in the form of Color struct array
 Color *GetImageData(Image image)
 {
@@ -694,28 +784,45 @@ void ImageFormat(Image *image, int newFormat)
 }
 
 // Apply alpha mask to image
-// NOTE 1: Returned image is RGBA - 32bit
+// NOTE 1: Returned image is GRAY_ALPHA (16bit) or RGBA (32bit)
 // NOTE 2: alphaMask should be same size as image
 void ImageAlphaMask(Image *image, Image alphaMask)
 {
-    if (image->format >= COMPRESSED_DXT1_RGB)
+    if ((image->width != alphaMask.width) || (image->height != alphaMask.height))
+    {
+        TraceLog(WARNING, "Alpha mask must be same size as image");
+    }
+    else if (image->format >= COMPRESSED_DXT1_RGB)
     {
         TraceLog(WARNING, "Alpha mask can not be applied to compressed data formats");
-        return;
     }
     else
     {
         // Force mask to be Grayscale
         Image mask = ImageCopy(alphaMask);
-        ImageFormat(&mask, UNCOMPRESSED_GRAYSCALE);
+        if (mask.format != UNCOMPRESSED_GRAYSCALE) ImageFormat(&mask, UNCOMPRESSED_GRAYSCALE);
         
-        // Convert image to RGBA
-        if (image->format != UNCOMPRESSED_R8G8B8A8) ImageFormat(image, UNCOMPRESSED_R8G8B8A8);
-
-        // Apply alpha mask to alpha channel
-        for (int i = 0, k = 3; (i < mask.width*mask.height) || (i < image->width*image->height); i++, k += 4)
+        // In case image is only grayscale, we just add alpha channel
+        if (image->format == UNCOMPRESSED_GRAYSCALE)
         {
-            ((unsigned char *)image->data)[k] = ((unsigned char *)mask.data)[i];
+            ImageFormat(image, UNCOMPRESSED_GRAY_ALPHA);
+            
+            // Apply alpha mask to alpha channel
+            for (int i = 0, k = 1; (i < mask.width*mask.height) || (i < image->width*image->height); i++, k += 2)
+            {
+                ((unsigned char *)image->data)[k] = ((unsigned char *)mask.data)[i];
+            }
+        }
+        else
+        {
+            // Convert image to RGBA
+            if (image->format != UNCOMPRESSED_R8G8B8A8) ImageFormat(image, UNCOMPRESSED_R8G8B8A8);
+
+            // Apply alpha mask to alpha channel
+            for (int i = 0, k = 3; (i < mask.width*mask.height) || (i < image->width*image->height); i++, k += 4)
+            {
+                ((unsigned char *)image->data)[k] = ((unsigned char *)mask.data)[i];
+            }
         }
 
         UnloadImage(mask);
@@ -1118,7 +1225,7 @@ Image ImageText(const char *text, int fontSize, Color color)
     if (fontSize < defaultFontSize) fontSize = defaultFontSize;
     int spacing = fontSize/defaultFontSize;
 
-    Image imText = ImageTextEx(GetDefaultFont(), text, fontSize, spacing, color);
+    Image imText = ImageTextEx(GetDefaultFont(), text, (float)fontSize, spacing, color);
 
     return imText;
 }
@@ -1134,7 +1241,7 @@ Image ImageTextEx(SpriteFont font, const char *text, float fontSize, int spacing
     // NOTE: GetTextureData() not available in OpenGL ES
     Image imFont = GetTextureData(font.texture);
 
-    ImageFormat(&imFont, UNCOMPRESSED_R8G8B8A8);    // Required for color tint
+    ImageFormat(&imFont, UNCOMPRESSED_R8G8B8A8);    // Convert to 32 bit for color tint
     ImageColorTint(&imFont, tint);                  // Apply color tint to font
 
     Color *fontPixels = GetImageData(imFont);
@@ -1183,7 +1290,7 @@ Image ImageTextEx(SpriteFont font, const char *text, float fontSize, int spacing
 void ImageDrawText(Image *dst, Vector2 position, const char *text, int fontSize, Color color)
 {
     // NOTE: For default font, sapcing is set to desired font size / default font size (10)
-    ImageDrawTextEx(dst, position, GetDefaultFont(), text, fontSize, fontSize/10, color);
+    ImageDrawTextEx(dst, position, GetDefaultFont(), text, (float)fontSize, fontSize/10, color);
 }
 
 // Draw text (custom sprite font) within an image (destination)
@@ -1317,7 +1424,7 @@ void ImageColorContrast(Image *image, float contrast)
     if (contrast < -100) contrast = -100;
     if (contrast > 100) contrast = 100;
 
-    contrast = (100.0 + contrast)/100.0;
+    contrast = (100.0f + contrast)/100.0f;
     contrast *= contrast;
 
     Color *pixels = GetImageData(*image);
@@ -1326,7 +1433,7 @@ void ImageColorContrast(Image *image, float contrast)
     {
         for (int x = 0; x < image->width; x++)
         {
-            float pR = (float)pixels[y*image->width + x].r/255.0;
+            float pR = (float)pixels[y*image->width + x].r/255.0f;
             pR -= 0.5;
             pR *= contrast;
             pR += 0.5;
@@ -1334,7 +1441,7 @@ void ImageColorContrast(Image *image, float contrast)
             if (pR < 0) pR = 0;
             if (pR > 255) pR = 255;
 
-            float pG = (float)pixels[y*image->width + x].g/255.0;
+            float pG = (float)pixels[y*image->width + x].g/255.0f;
             pG -= 0.5;
             pG *= contrast;
             pG += 0.5;
@@ -1342,7 +1449,7 @@ void ImageColorContrast(Image *image, float contrast)
             if (pG < 0) pG = 0;
             if (pG > 255) pG = 255;
 
-            float pB = (float)pixels[y*image->width + x].b/255.0;
+            float pB = (float)pixels[y*image->width + x].b/255.0f;
             pB -= 0.5;
             pB *= contrast;
             pB += 0.5;

src/utils.c

@@ -8,7 +8,7 @@
 *       tinfl - zlib DEFLATE algorithm decompression lib
 *       stb_image_write - PNG writting functions
 *
-*   Copyright (c) 2014 Ramon Santamaria (@raysan5)
+*   Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
 *
 *   This software is provided "as-is", without any express or implied warranty. In no event
 *   will the authors be held liable for any damages arising from the use of this software.