diff options
Diffstat (limited to 'src/textures.c')
| -rw-r--r-- | src/textures.c | 220 |
1 files changed, 110 insertions, 110 deletions
diff --git a/src/textures.c b/src/textures.c index 2bbf8e61..39947d12 100644 --- a/src/textures.c +++ b/src/textures.c @@ -3,20 +3,20 @@ * raylib.textures * * Basic functions to load and draw Textures (2d) -* +* * Uses external lib: * stb_image - Multiple formats image loading (JPEG, PNG, BMP, TGA, PSD, GIF, PIC) * * Copyright (c) 2013 Ramon Santamaria (Ray San - raysan@raysanweb.com) -* -* This software is provided "as-is", without any express or implied warranty. In no event +* +* 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. * -* Permission is granted to anyone to use this software for any purpose, including commercial +* Permission is granted to anyone to use this software for any purpose, including commercial * applications, and to alter it and redistribute it freely, subject to the following restrictions: * -* 1. The origin of this software must not be misrepresented; you must not claim that you -* wrote the original software. If you use this software in a product, an acknowledgment +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment * in the product documentation would be appreciated but is not required. * * 2. Altered source versions must be plainly marked as such, and must not be misrepresented @@ -83,12 +83,12 @@ static ImageEx LoadDDS(const char *fileName); Image LoadImage(const char *fileName) { Image image; - + // Initial values image.pixels = NULL; image.width = 0; image.height = 0; - + if ((strcmp(GetExtension(fileName),"png") == 0) || (strcmp(GetExtension(fileName),"bmp") == 0) || (strcmp(GetExtension(fileName),"tga") == 0) || @@ -96,22 +96,22 @@ Image LoadImage(const char *fileName) (strcmp(GetExtension(fileName),"gif") == 0) || (strcmp(GetExtension(fileName),"psd") == 0) || (strcmp(GetExtension(fileName),"pic") == 0)) - { + { int imgWidth; int imgHeight; int imgBpp; - + // NOTE: Using stb_image to load images (Supports: BMP, TGA, PNG, JPG, ...) // Force loading to 4 components (RGBA) - byte *imgData = stbi_load(fileName, &imgWidth, &imgHeight, &imgBpp, 4); - + byte *imgData = stbi_load(fileName, &imgWidth, &imgHeight, &imgBpp, 4); + if (imgData != NULL) { // Convert array to pixel array for working convenience image.pixels = (Color *)malloc(imgWidth * imgHeight * sizeof(Color)); - + int pix = 0; - + for (int i = 0; i < (imgWidth * imgHeight * 4); i += 4) { image.pixels[pix].r = imgData[i]; @@ -120,12 +120,12 @@ Image LoadImage(const char *fileName) image.pixels[pix].a = imgData[i+3]; pix++; } - + stbi_image_free(imgData); - + image.width = imgWidth; image.height = imgHeight; - + TraceLog(INFO, "[%s] Image loaded successfully", fileName); } else TraceLog(WARNING, "[%s] Image could not be loaded", fileName); @@ -133,17 +133,17 @@ Image LoadImage(const char *fileName) else if (strcmp(GetExtension(fileName),"dds") == 0) { // NOTE: DDS uncompressed images can also be loaded (discarding mipmaps...) - + ImageEx imageDDS = LoadDDS(fileName); - + if (imageDDS.compFormat == 0) { image.pixels = (Color *)malloc(imageDDS.width * imageDDS.height * sizeof(Color)); image.width = imageDDS.width; image.height = imageDDS.height; - + int pix = 0; - + for (int i = 0; i < (image.width * image.height * 4); i += 4) { image.pixels[pix].r = imageDDS.data[i]; @@ -152,16 +152,16 @@ Image LoadImage(const char *fileName) image.pixels[pix].a = imageDDS.data[i+3]; pix++; } - + free(imageDDS.data); - + TraceLog(INFO, "[%s] Image loaded successfully", fileName); } - else TraceLog(WARNING, "[%s] Compressed image data could not be loaded", fileName); + else TraceLog(WARNING, "[%s] Compressed image data could not be loaded", fileName); } else TraceLog(WARNING, "[%s] Image extension not recognized, it can't be loaded", fileName); - - // ALTERNATIVE: We can load pixel data directly into Color struct pixels array, + + // ALTERNATIVE: We can load pixel data directly into Color struct pixels array, // to do that struct data alignment should be the right one (4 byte); it is. //image.pixels = stbi_load(fileName, &imgWidth, &imgHeight, &imgBpp, 4); @@ -172,7 +172,7 @@ Image LoadImage(const char *fileName) Image LoadImageFromRES(const char *rresName, int resId) { // TODO: rresName could be directly a char array with all the data! --> support it! :P - + Image image; bool found = false; @@ -180,9 +180,9 @@ Image LoadImageFromRES(const char *rresName, int resId) unsigned char version; // rRES file version and subversion char useless; // rRES header reserved data short numRes; - + ResInfoHeader infoHeader; - + FILE *rresFile = fopen(rresName, "rb"); if (!rresFile) TraceLog(WARNING, "[%s] Could not open raylib resource file", rresName); @@ -195,7 +195,7 @@ Image LoadImageFromRES(const char *rresName, int resId) fread(&id[3], sizeof(char), 1, rresFile); fread(&version, sizeof(char), 1, rresFile); fread(&useless, sizeof(char), 1, rresFile); - + if ((id[0] != 'r') && (id[1] != 'R') && (id[2] != 'E') &&(id[3] != 'S')) { TraceLog(WARNING, "[%s] This is not a valid raylib resource file", rresName); @@ -204,15 +204,15 @@ Image LoadImageFromRES(const char *rresName, int resId) { // Read number of resources embedded fread(&numRes, sizeof(short), 1, rresFile); - + for (int i = 0; i < numRes; i++) { fread(&infoHeader, sizeof(ResInfoHeader), 1, rresFile); - + if (infoHeader.id == resId) { found = true; - + // Check data is of valid IMAGE type if (infoHeader.type == 0) // IMAGE data type { @@ -221,25 +221,25 @@ Image LoadImageFromRES(const char *rresName, int resId) short imgWidth, imgHeight; char colorFormat, mipmaps; - + fread(&imgWidth, sizeof(short), 1, rresFile); // Image width fread(&imgHeight, sizeof(short), 1, rresFile); // Image height fread(&colorFormat, 1, 1, rresFile); // Image data color format (default: RGBA 32 bit) fread(&mipmaps, 1, 1, rresFile); // Mipmap images included (default: 0) - + image.width = (int)imgWidth; image.height = (int)imgHeight; - + unsigned char *data = malloc(infoHeader.size); fread(data, infoHeader.size, 1, rresFile); - + unsigned char *imgData = DecompressData(data, infoHeader.size, infoHeader.srcSize); - + image.pixels = (Color *)malloc(sizeof(Color)*imgWidth*imgHeight); - + int pix = 0; - + for (int i = 0; i < (imgWidth*imgHeight*4); i += 4) { image.pixels[pix].r = imgData[i]; @@ -248,11 +248,11 @@ Image LoadImageFromRES(const char *rresName, int resId) image.pixels[pix].a = imgData[i+3]; pix++; } - + free(imgData); - + free(data); - + TraceLog(INFO, "[%s] Image loaded successfully from resource, size: %ix%i", rresName, image.width, image.height); } else @@ -272,18 +272,18 @@ Image LoadImageFromRES(const char *rresName, int resId) case 4: break; // RAW: No parameters default: break; } - + // Jump DATA to read next infoHeader fseek(rresFile, infoHeader.size, SEEK_CUR); } } } - + fclose(rresFile); } - + if (!found) TraceLog(WARNING, "[%s] Required resource id [%i] could not be found in the raylib resource file", rresName, resId); - + return image; } @@ -295,7 +295,7 @@ Texture2D LoadTexture(const char *fileName) if (strcmp(GetExtension(fileName),"dds") == 0) { ImageEx image = LoadDDS(fileName); - + if (image.compFormat == 0) { texture.id = rlglLoadTexture(image.data, image.width, image.height, false); @@ -306,26 +306,26 @@ Texture2D LoadTexture(const char *fileName) texture.id = rlglLoadCompressedTexture(image.data, image.width, image.height, image.mipmaps, image.compFormat); #endif } - + texture.width = image.width; texture.height = image.height; - + if (texture.id == 0) TraceLog(WARNING, "[%s] DDS texture could not be loaded", fileName); else TraceLog(INFO, "[%s] DDS texture loaded successfully", fileName); - + free(image.data); } else { Image image = LoadImage(fileName); - + if (image.pixels != NULL) { texture = CreateTexture(image, false); UnloadImage(image); } } - + return texture; } @@ -337,7 +337,7 @@ Texture2D LoadTextureFromRES(const char *rresName, int resId) Image image = LoadImageFromRES(rresName, resId); texture = CreateTexture(image, false); UnloadImage(image); - + return texture; } @@ -371,7 +371,7 @@ void DrawTextureEx(Texture2D texture, Vector2 position, float rotation, float sc Rectangle sourceRec = { 0, 0, texture.width, texture.height }; Rectangle destRec = { (int)position.x, (int)position.y, texture.width*scale, texture.height*scale }; Vector2 origin = { 0, 0 }; - + DrawTexturePro(texture, sourceRec, destRec, origin, rotation, tint); } @@ -380,7 +380,7 @@ void DrawTextureRec(Texture2D texture, Rectangle sourceRec, Vector2 position, Co { Rectangle destRec = { (int)position.x, (int)position.y, sourceRec.width, sourceRec.height }; Vector2 origin = { 0, 0 }; - + DrawTexturePro(texture, sourceRec, destRec, origin, 0, tint); } @@ -389,34 +389,34 @@ void DrawTextureRec(Texture2D texture, Rectangle sourceRec, Vector2 position, Co void DrawTexturePro(Texture2D texture, Rectangle sourceRec, Rectangle destRec, Vector2 origin, float rotation, Color tint) { rlEnableTexture(texture.id); - + rlPushMatrix(); rlTranslatef(destRec.x, destRec.y, 0); rlRotatef(rotation, 0, 0, 1); rlTranslatef(-origin.x, -origin.y, 0); - + rlBegin(RL_QUADS); rlColor4ub(tint.r, tint.g, tint.b, tint.a); rlNormal3f(0.0f, 0.0f, 1.0f); // Normal vector pointing towards viewer - + // Bottom-left corner for texture and quad - rlTexCoord2f((float)sourceRec.x / texture.width, (float)sourceRec.y / texture.height); + rlTexCoord2f((float)sourceRec.x / texture.width, (float)sourceRec.y / texture.height); rlVertex2f(0.0f, 0.0f); - + // Bottom-right corner for texture and quad rlTexCoord2f((float)sourceRec.x / texture.width, (float)(sourceRec.y + sourceRec.height) / texture.height); rlVertex2f(0.0f, destRec.height); - + // Top-right corner for texture and quad - rlTexCoord2f((float)(sourceRec.x + sourceRec.width) / texture.width, (float)(sourceRec.y + sourceRec.height) / texture.height); + rlTexCoord2f((float)(sourceRec.x + sourceRec.width) / texture.width, (float)(sourceRec.y + sourceRec.height) / texture.height); rlVertex2f(destRec.width, destRec.height); - + // Top-left corner for texture and quad rlTexCoord2f((float)(sourceRec.x + sourceRec.width) / texture.width, (float)sourceRec.y / texture.height); rlVertex2f(destRec.width, 0.0f); rlEnd(); rlPopMatrix(); - + rlDisableTexture(); } @@ -425,25 +425,25 @@ void DrawTexturePro(Texture2D texture, Rectangle sourceRec, Rectangle destRec, V Texture2D CreateTexture(Image image, bool genMipmaps) { Texture2D texture; - + // Init texture to default values texture.id = 0; texture.width = 0; texture.height = 0; - + if (image.pixels != NULL) { unsigned char *imgData = malloc(image.width * image.height * 4); - + int j = 0; - + for (int i = 0; i < image.width * image.height * 4; i += 4) { imgData[i] = image.pixels[j].r; imgData[i+1] = image.pixels[j].g; imgData[i+2] = image.pixels[j].b; imgData[i+3] = image.pixels[j].a; - + j++; } @@ -452,24 +452,24 @@ Texture2D CreateTexture(Image image, bool genMipmaps) texture.width = image.width; texture.height = image.height; - + TraceLog(INFO, "[ID %i] Texture created successfully", texture.id); - + free(imgData); } else TraceLog(WARNING, "Texture could not be created, image data is not valid"); - + return texture; } // Loading DDS image data (compressed or uncompressed) // NOTE: Compressed data loading not supported on OpenGL 1.1 ImageEx LoadDDS(const char *fileName) -{ +{ #define FOURCC_DXT1 0x31545844 // Equivalent to "DXT1" in ASCII #define FOURCC_DXT3 0x33545844 // Equivalent to "DXT3" in ASCII #define FOURCC_DXT5 0x35545844 // Equivalent to "DXT5" in ASCII - + #ifndef GL_COMPRESSED_RGBA_S3TC_DXT1_EXT #define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1 #endif @@ -481,7 +481,7 @@ ImageEx LoadDDS(const char *fileName) #ifndef GL_COMPRESSED_RGBA_S3TC_DXT5_EXT #define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3 #endif - + // DDS Pixel Format typedef struct { unsigned int size; @@ -493,7 +493,7 @@ ImageEx LoadDDS(const char *fileName) unsigned int bitMask; unsigned int aBitMask; } ddsPixelFormat; - + // DDS Header (124 bytes) typedef struct { unsigned int size; @@ -511,12 +511,12 @@ ImageEx LoadDDS(const char *fileName) unsigned int caps4; unsigned int reserved2; } ddsHeader; - + ImageEx image; ddsHeader header; FILE *ddsFile = fopen(fileName, "rb"); - + if (ddsFile == NULL) { TraceLog(WARNING, "DDS File could not be opened"); @@ -525,16 +525,16 @@ ImageEx LoadDDS(const char *fileName) { // Verify the type of file char filecode[4]; - + fread(filecode, 1, 4, ddsFile); - - if (strncmp(filecode, "DDS ", 4) != 0) - { + + if (strncmp(filecode, "DDS ", 4) != 0) + { TraceLog(WARNING, "DDS File does not seem to be valid"); fclose(ddsFile); } else - { + { // Get the surface descriptor fread(&header, sizeof(ddsHeader), 1, ddsFile); @@ -542,25 +542,25 @@ ImageEx LoadDDS(const char *fileName) TraceLog(DEBUG, "[%s] DDS file pixel format size: %i", fileName, header.ddspf.size); TraceLog(DEBUG, "[%s] DDS file pixel format flags: 0x%x", fileName, header.ddspf.flags); TraceLog(DEBUG, "[%s] DDS file format: 0x%x", fileName, header.ddspf.fourCC); - + image.width = header.width; image.height = header.height; image.mipmaps = 1; image.compFormat = 0; - + if (header.ddspf.flags == 0x40 && header.ddspf.rgbBitCount == 24) // DDS_RGB, no compressed { image.data = (unsigned char *)malloc(header.width * header.height * 4); unsigned char *buffer = (unsigned char *)malloc(header.width * header.height * 3); - + fread(buffer, image.width*image.height*3, 1, ddsFile); - + unsigned char *src = buffer; unsigned char *dest = image.data; - - for(int y = 0; y < image.height; y++) + + for(int y = 0; y < image.height; y++) { - for(int x = 0; x < image.width; x++) + for(int x = 0; x < image.width; x++) { *dest++ = *src++; *dest++ = *src++; @@ -568,49 +568,49 @@ ImageEx LoadDDS(const char *fileName) *dest++ = 255; } } - + free(buffer); } else if (header.ddspf.flags == 0x41 && header.ddspf.rgbBitCount == 32) // DDS_RGBA, no compressed { image.data = (unsigned char *)malloc(header.width * header.height * 4); - + fread(image.data, image.width*image.height*4, 1, ddsFile); - + image.mipmaps = 1; image.compFormat = 0; } else if ((header.ddspf.flags == 0x04) && (header.ddspf.fourCC > 0)) { -#ifdef USE_OPENGL_11 +#ifdef USE_OPENGL_11 TraceLog(WARNING, "[%s] DDS image uses compression, not supported by current OpenGL version", fileName); TraceLog(WARNING, "[%s] DDS compressed files require OpenGL 3.2+ or ES 2.0", fileName); fclose(ddsFile); #else int bufsize; - + // Calculate data size, including all mipmaps if (header.mipMapCount > 1) bufsize = header.pitchOrLinearSize * 2; - else bufsize = header.pitchOrLinearSize; - - image.data = (unsigned char*)malloc(bufsize * sizeof(unsigned char)); - - fread(image.data, 1, bufsize, ddsFile); - + else bufsize = header.pitchOrLinearSize; + + image.data = (unsigned char*)malloc(bufsize * sizeof(unsigned char)); + + fread(image.data, 1, bufsize, ddsFile); + // Close file pointer fclose(ddsFile); - + image.mipmaps = header.mipMapCount; image.compFormat = 0; - + switch(header.ddspf.fourCC) - { - case FOURCC_DXT1: image.compFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break; - case FOURCC_DXT3: image.compFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; break; - case FOURCC_DXT5: image.compFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; break; + { + case FOURCC_DXT1: image.compFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break; + case FOURCC_DXT3: image.compFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; break; + case FOURCC_DXT5: image.compFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; break; default: break; } - + // NOTE: Image num color components not required... for now... //if (fourCC == FOURCC_DXT1) image.components = 3; //else image.components = 4; @@ -618,6 +618,6 @@ ImageEx LoadDDS(const char *fileName) } } } - + return image; }
\ No newline at end of file |