/******************************************************************************************* * * raylib [textures] example - texture formats loading (compressed and uncompressed) * * NOTE: This example requires raylib OpenGL 3.3+ or ES2 versions for compressed textures, * OpenGL 1.1 does not support compressed textures, only uncompressed ones. * * This example has been created using raylib 1.3 (www.raylib.com) * raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details) * * Copyright (c) 2015 Ramon Santamaria (@raysan5) * ********************************************************************************************/ #include "raylib.h" #define NUM_TEXTURES 24 typedef enum { PNG_R8G8B8A8 = 0, PVR_GRAYSCALE, PVR_GRAY_ALPHA, PVR_R5G6B5, PVR_R5G5B5A1, PVR_R4G4B4A4, DDS_R5G6B5, DDS_R5G5B5A1, DDS_R4G4B4A4, DDS_R8G8B8A8, DDS_DXT1_RGB, DDS_DXT1_RGBA, DDS_DXT3_RGBA, DDS_DXT5_RGBA, PKM_ETC1_RGB, PKM_ETC2_RGB, PKM_ETC2_EAC_RGBA, KTX_ETC1_RGB, KTX_ETC2_RGB, KTX_ETC2_EAC_RGBA, ASTC_4x4_LDR, ASTC_8x8_LDR, PVR_PVRT_RGB, PVR_PVRT_RGBA } TextureFormats; static const char *formatText[] = { "PNG_R8G8B8A8", "PVR_GRAYSCALE", "PVR_GRAY_ALPHA", "PVR_R5G6B5", "PVR_R5G5B5A1", "PVR_R4G4B4A4", "DDS_R5G6B5", "DDS_R5G5B5A1", "DDS_R4G4B4A4", "DDS_R8G8B8A8", "DDS_DXT1_RGB", "DDS_DXT1_RGBA", "DDS_DXT3_RGBA", "DDS_DXT5_RGBA", "PKM_ETC1_RGB", "PKM_ETC2_RGB", "PKM_ETC2_EAC_RGBA", "KTX_ETC1_RGB", "KTX_ETC2_RGB", "KTX_ETC2_EAC_RGBA", "ASTC_4x4_LDR", "ASTC_8x8_LDR", "PVR_PVRT_RGB", "PVR_PVRT_RGBA" }; int main() { // Initialization //-------------------------------------------------------------------------------------- int screenWidth = 800; int screenHeight = 480; InitWindow(screenWidth, screenHeight, "raylib [textures] example - texture formats loading"); // NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required) Texture2D sonic[NUM_TEXTURES]; sonic[PNG_R8G8B8A8] = LoadTexture("resources/texture_formats/sonic.png"); // Load UNCOMPRESSED PVR texture data sonic[PVR_GRAYSCALE] = LoadTexture("resources/texture_formats/sonic_GRAYSCALE.pvr"); sonic[PVR_GRAY_ALPHA] = LoadTexture("resources/texture_formats/sonic_L8A8.pvr"); sonic[PVR_R5G6B5] = LoadTexture("resources/texture_formats/sonic_R5G6B5.pvr"); sonic[PVR_R5G5B5A1] = LoadTexture("resources/texture_formats/sonic_R5G5B5A1.pvr"); sonic[PVR_R4G4B4A4] = LoadTexture("resources/texture_formats/sonic_R4G4B4A4.pvr"); // Load UNCOMPRESSED DDS texture data sonic[DDS_R5G6B5] = LoadTexture("resources/texture_formats/sonic_R5G6B5.dds"); sonic[DDS_R5G5B5A1] = LoadTexture("resources/texture_formats/sonic_A1R5G5B5.dds"); sonic[DDS_R4G4B4A4] = LoadTexture("resources/texture_formats/sonic_A4R4G4B4.dds"); sonic[DDS_R8G8B8A8] = LoadTexture("resources/texture_formats/sonic_A8R8G8B8.dds"); // Load COMPRESSED DXT DDS texture data (if supported) sonic[DDS_DXT1_RGB] = LoadTexture("resources/texture_formats/sonic_DXT1_RGB.dds"); sonic[DDS_DXT1_RGBA] = LoadTexture("resources/texture_formats/sonic_DXT1_RGBA.dds"); sonic[DDS_DXT3_RGBA] = LoadTexture("resources/texture_formats/sonic_DXT3_RGBA.dds"); sonic[DDS_DXT5_RGBA] = LoadTexture("resources/texture_formats/sonic_DXT5_RGBA.dds"); // Load COMPRESSED ETC texture data (if supported) sonic[PKM_ETC1_RGB] = LoadTexture("resources/texture_formats/sonic_ETC1_RGB.pkm"); sonic[PKM_ETC2_RGB] = LoadTexture("resources/texture_formats/sonic_ETC2_RGB.pkm"); sonic[PKM_ETC2_EAC_RGBA] = LoadTexture("resources/texture_formats/sonic_ETC2_EAC_RGBA.pkm"); sonic[KTX_ETC1_RGB] = LoadTexture("resources/texture_formats/sonic_ETC1_RGB.ktx"); sonic[KTX_ETC2_RGB] = LoadTexture("resources/texture_formats/sonic_ETC2_RGB.ktx"); sonic[KTX_ETC2_EAC_RGBA] = LoadTexture("resources/texture_formats/sonic_ETC2_EAC_RGBA.ktx"); // Load COMPRESSED ASTC texture data (if supported) sonic[ASTC_4x4_LDR] = LoadTexture("resources/texture_formats/sonic_ASTC_4x4_ldr.astc"); sonic[ASTC_8x8_LDR] = LoadTexture("resources/texture_formats/sonic_ASTC_8x8_ldr.astc"); // Load COMPRESSED PVR texture data (if supported) sonic[PVR_PVRT_RGB] = LoadTexture("resources/texture_formats/sonic_PVRT_RGB.pvr"); sonic[PVR_PVRT_RGBA] = LoadTexture("resources/texture_formats/sonic_PVRT_RGBA.pvr"); int selectedFormat = PNG_R8G8B8A8; Rectangle selectRecs[NUM_TEXTURES]; for (int i = 0; i < NUM_TEXTURES; i++) { if (i < NUM_TEXTURES/2) selectRecs[i] = (Rectangle){ 40, 45 + 32*i, 150, 30 }; else selectRecs[i] = (Rectangle){ 40 + 152, 45 + 32*(i - NUM_TEXTURES/2), 150, 30 }; } // Texture sizes in KB float textureSizes[NUM_TEXTURES] = { 512*512*32/8/1024, //PNG_R8G8B8A8 (32 bpp) 512*512*8/8/1024, //PVR_GRAYSCALE (8 bpp) 512*512*16/8/1024, //PVR_GRAY_ALPHA (16 bpp) 512*512*16/8/1024, //PVR_R5G6B5 (16 bpp) 512*512*16/8/1024, //PVR_R5G5B5A1 (16 bpp) 512*512*16/8/1024, //PVR_R4G4B4A4 (16 bpp) 512*512*16/8/1024, //DDS_R5G6B5 (16 bpp) 512*512*16/8/1024, //DDS_R5G5B5A1 (16 bpp) 512*512*16/8/1024, //DDS_R4G4B4A4 (16 bpp) 512*512*32/8/1024, //DDS_R8G8B8A8 (32 bpp) 512*512*4/8/1024, //DDS_DXT1_RGB (4 bpp) -Compressed- 512*512*4/8/1024, //DDS_DXT1_RGBA (4 bpp) -Compressed- 512*512*8/8/1024, //DDS_DXT3_RGBA (8 bpp) -Compressed- 512*512*8/8/1024, //DDS_DXT5_RGBA (8 bpp) -Compressed- 512*512*4/8/1024, //PKM_ETC1_RGB (4 bpp) -Compressed- 512*512*4/8/1024, //PKM_ETC2_RGB (4 bpp) -Compressed- 512*512*8/8/1024, //PKM_ETC2_EAC_RGBA (8 bpp) -Compressed- 512*512*4/8/1024, //KTX_ETC1_RGB (4 bpp) -Compressed- 512*512*4/8/1024, //KTX_ETC2_RGB (4 bpp) -Compressed- 512*512*8/8/1024, //KTX_ETC2_EAC_RGBA (8 bpp) -Compressed- 512*512*8/8/1024, //ASTC_4x4_LDR (8 bpp) -Compressed- 512*512*2/8/1024, //ASTC_8x8_LDR (2 bpp) -Compressed- 512*512*4/8/1024, //PVR_PVRT_RGB (4 bpp) -Compressed- 512*512*4/8/1024, //PVR_PVRT_RGBA (4 bpp) -Compressed- }; SetTargetFPS(60); // Set our game to run at 60 frames-per-second //--------------------------------------------------------------------------------------- // Main game loop while (!WindowShouldClose()) // Detect window close button or ESC key { // Update //---------------------------------------------------------------------------------- if (IsKeyPressed(KEY_DOWN)) { selectedFormat++; if (selectedFormat >= NUM_TEXTURES) selectedFormat = 0; } else if (IsKeyPressed(KEY_UP)) { selectedFormat--; if (selectedFormat < 0) selectedFormat = NUM_TEXTURES - 1; } else if (IsKeyPressed(KEY_RIGHT)) { if (selectedFormat < NUM_TEXTURES/2) selectedFormat += NUM_TEXTURES/2; } else if (IsKeyPressed(KEY_LEFT)) { if (selectedFormat >= NUM_TEXTURES/2) selectedFormat -= NUM_TEXTURES/2; } //---------------------------------------------------------------------------------- // Draw //---------------------------------------------------------------------------------- BeginDrawing(); ClearBackground(RAYWHITE); // Draw rectangles for (int i = 0; i < NUM_TEXTURES; i++) { if (i == selectedFormat) { DrawRectangleRec(selectRecs[i], SKYBLUE); DrawRectangleLines(selectRecs[i].x, selectRecs[i].y, selectRecs[i].width, selectRecs[i].height, BLUE); DrawText(formatText[i], selectRecs[i].x + selectRecs[i].width/2 - MeasureText(formatText[i], 10)/2, selectRecs[i].y + 11, 10, DARKBLUE); } else { DrawRectangleRec(selectRecs[i], LIGHTGRAY); DrawRectangleLines(selectRecs[i].x, selectRecs[i].y, selectRecs[i].width, selectRecs[i].height, GRAY); DrawText(formatText[i], selectRecs[i].x + selectRecs[i].width/2 - MeasureText(formatText[i], 10)/2, selectRecs[i].y + 11, 10, DARKGRAY); } } // Draw selected texture if (sonic[selectedFormat].id != 0) { DrawTexture(sonic[selectedFormat], 350, 0, WHITE); } else { DrawRectangleLines(488, 165, 200, 110, DARKGRAY); DrawText("FORMAT", 550, 180, 20, MAROON); DrawText("NOT SUPPORTED", 500, 210, 20, MAROON); DrawText("ON YOUR GPU", 520, 240, 20, MAROON); } DrawText("Select texture format (use cursor keys):", 40, 26, 10, DARKGRAY); DrawText("Required GPU memory size (VRAM):", 40, 442, 10, DARKGRAY); DrawText(FormatText("%4.0f KB", textureSizes[selectedFormat]), 240, 435, 20, DARKBLUE); EndDrawing(); //---------------------------------------------------------------------------------- } // De-Initialization //-------------------------------------------------------------------------------------- for (int i = 0; i < NUM_TEXTURES; i++) UnloadTexture(sonic[i]); CloseWindow(); // Close window and OpenGL context //-------------------------------------------------------------------------------------- return 0; }