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Redesign to work as standalone

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Redesigned to work as standalone and support fordward-compatible context
(shaders review)
This commit is contained in:
raysan5 2016-03-20 13:39:27 +01:00
parent e2ba22ec59
commit 5e45c3c824
2 changed files with 52 additions and 5 deletions
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51
src/rlgl.c
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@ -32,7 +32,9 @@
#include <stdlib.h> // Declares malloc() and free() for memory management, rand()
#include <string.h> // Declares strcmp(), strlen(), strtok()
#include "raymath.h" // Required for Vector3 and Matrix functions
#ifndef RLGL_STANDALONE
#include "raymath.h" // Required for Vector3 and Matrix functions
#endif
#if defined(GRAPHICS_API_OPENGL_11)
#ifdef __APPLE__ // OpenGL include for OSX
@ -298,6 +300,7 @@ static pixel *GenNextMipmap(pixel *srcData, int srcWidth, int srcHeight);
#if defined(RLGL_STANDALONE)
static void TraceLog(int msgType, const char *text, ...);
float *MatrixToFloat(Matrix mat); // Converts Matrix to float array
#endif
#if defined(GRAPHICS_API_OPENGL_ES2)
@ -2581,6 +2584,7 @@ static Shader LoadDefaultShader(void)
char fShaderStr[] = "#version 330 \n"
"in vec2 fragTexCoord; \n"
"in vec4 fragTintColor; \n"
"out vec4 fragColor; \n"
#elif defined(GRAPHICS_API_OPENGL_ES2)
char fShaderStr[] = "#version 100 \n"
"precision mediump float; \n" // precision required for OpenGL ES2 (WebGL)
@ -2590,8 +2594,13 @@ static Shader LoadDefaultShader(void)
"uniform sampler2D texture0; \n"
"void main() \n"
"{ \n"
" vec4 texelColor = texture2D(texture0, fragTexCoord); \n" // NOTE: texture2D() is deprecated on OpenGL 3.3 and ES 3.0, use texture() instead
" gl_FragColor = texelColor*fragTintColor; \n"
#if defined(GRAPHICS_API_OPENGL_33)
" vec4 texelColor = texture(texture0, fragTexCoord); \n"
" fragColor = texelColor*fragTintColor; \n"
#elif defined(GRAPHICS_API_OPENGL_ES2)
" vec4 texelColor = texture2D(texture0, fragTexCoord); \n" // NOTE: texture2D() is deprecated on OpenGL 3.3 and ES 3.0
" gl_FragColor = texelColor*fragTintColor; \n"
#endif
"} \n";
shader.id = LoadShaderProgram(vShaderStr, fShaderStr);
@ -2651,6 +2660,7 @@ static Shader LoadSimpleShader(void)
#if defined(GRAPHICS_API_OPENGL_33)
char fShaderStr[] = "#version 330 \n"
"in vec2 fragTexCoord; \n"
"out vec4 fragColor; \n"
#elif defined(GRAPHICS_API_OPENGL_ES2)
char fShaderStr[] = "#version 100 \n"
"precision mediump float; \n" // precision required for OpenGL ES2 (WebGL)
@ -2660,8 +2670,13 @@ static Shader LoadSimpleShader(void)
"uniform vec4 fragTintColor; \n"
"void main() \n"
"{ \n"
" vec4 texelColor = texture2D(texture0, fragTexCoord); \n" // NOTE: texture2D() is deprecated on OpenGL 3.3 and ES 3.0, use texture() instead
#if defined(GRAPHICS_API_OPENGL_33)
" vec4 texelColor = texture(texture0, fragTexCoord); \n"
" fragColor = texelColor*fragTintColor; \n"
#elif defined(GRAPHICS_API_OPENGL_ES2)
" vec4 texelColor = texture2D(texture0, fragTexCoord); \n"
" gl_FragColor = texelColor*fragTintColor; \n"
#endif
"} \n";
shader.id = LoadShaderProgram(vShaderStr, fShaderStr);
@ -3102,4 +3117,32 @@ static void TraceLog(int msgType, const char *text, ...)
if (msgType == ERROR) exit(1);
}
// Converts Matrix to float array
// NOTE: Returned vector is a transposed version of the Matrix struct,
// it should be this way because, despite raymath use OpenGL column-major convention,
// Matrix struct memory alignment and variables naming are not coherent
float *MatrixToFloat(Matrix mat)
{
static float buffer[16];
buffer[0] = mat.m0;
buffer[1] = mat.m4;
buffer[2] = mat.m8;
buffer[3] = mat.m12;
buffer[4] = mat.m1;
buffer[5] = mat.m5;
buffer[6] = mat.m9;
buffer[7] = mat.m13;
buffer[8] = mat.m2;
buffer[9] = mat.m6;
buffer[10] = mat.m10;
buffer[11] = mat.m14;
buffer[12] = mat.m3;
buffer[13] = mat.m7;
buffer[14] = mat.m11;
buffer[15] = mat.m15;
return buffer;
}
#endif

6
src/rlgl.h
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@ -36,7 +36,11 @@
#include "utils.h" // Required for function TraceLog()
#endif
#include "raymath.h"
#ifdef RLGL_STANDALONE
#define RAYMATH_STANDALONE
#endif
#include "raymath.h" // Required for types: Vector3, Matrix
// Select desired OpenGL version
// NOTE: Those preprocessor defines are only used on rlgl module,