diff options
| -rw-r--r-- | src/rlgl.h | 128 | ||||
| -rw-r--r-- | src/textures.c | 93 |
2 files changed, 154 insertions, 67 deletions
@@ -446,9 +446,11 @@ void rlLoadExtensions(void *loader); // Load OpenGL extensions Vector3 rlUnproject(Vector3 source, Matrix proj, Matrix view); // Get world coordinates from screen coordinates // Textures data management -unsigned int rlLoadTexture(void *data, int width, int height, int format, int mipmapCount); // Load texture in GPU -void rlUpdateTexture(unsigned int id, int width, int height, int format, const void *data); // Update GPU texture with new data -void rlUnloadTexture(unsigned int id); +unsigned int rlLoadTexture(void *data, int width, int height, int format, int mipmapCount); // Load texture in GPU +void rlUpdateTexture(unsigned int id, int width, int height, int format, const void *data); // Update GPU texture with new data +void rlGetGlTextureFormats(int format, unsigned int *glInternalFormat, unsigned int *glFormat, unsigned int *glType); // Get OpenGL internal formats +void rlUnloadTexture(unsigned int id); // Unload texture from GPU memory + void rlGenerateMipmaps(Texture2D *texture); // Generate mipmap data for selected texture void *rlReadTexturePixels(Texture2D texture); // Read texture pixel data unsigned char *rlReadScreenPixels(int width, int height); // Read screen pixel data (color buffer) @@ -913,9 +915,6 @@ static void SetStereoView(int eye, Matrix matProjection, Matrix matModelView); / #endif // defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) -// Get OpenGL internal formats and data type from raylib PixelFormat -static void GetGlFormats(int format, int *glInternalFormat, int *glFormat, int *glType); - #if defined(GRAPHICS_API_OPENGL_11) static int GenerateMipmaps(unsigned char *data, int baseWidth, int baseHeight); static Color *GenNextMipmap(Color *srcData, int srcWidth, int srcHeight); @@ -2015,8 +2014,8 @@ unsigned int rlLoadTexture(void *data, int width, int height, int format, int mi { unsigned int mipSize = GetPixelDataSize(mipWidth, mipHeight, format); - int glInternalFormat, glFormat, glType; - GetGlFormats(format, &glInternalFormat, &glFormat, &glType); + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); TraceLog(LOG_DEBUG, "Load mipmap level %i (%i x %i), size: %i, offset: %i", i, mipWidth, mipHeight, mipSize, mipOffset); @@ -2105,8 +2104,8 @@ void rlUpdateTexture(unsigned int id, int width, int height, int format, const v { glBindTexture(GL_TEXTURE_2D, id); - int glInternalFormat, glFormat, glType; - GetGlFormats(format, &glInternalFormat, &glFormat, &glType); + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); if ((glInternalFormat != -1) && (format < COMPRESSED_DXT1_RGB)) { @@ -2115,13 +2114,64 @@ void rlUpdateTexture(unsigned int id, int width, int height, int format, const v else TraceLog(LOG_WARNING, "Texture format updating not supported"); } +// Get OpenGL internal formats and data type from raylib PixelFormat +void rlGetGlTextureFormats(int format, unsigned int *glInternalFormat, unsigned int *glFormat, unsigned int *glType) +{ + *glInternalFormat = -1; + *glFormat = -1; + *glType = -1; + + switch (format) + { + #if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_21) || defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: on OpenGL ES 2.0 (WebGL), internalFormat must match format and options allowed are: GL_LUMINANCE, GL_RGB, GL_RGBA + case UNCOMPRESSED_GRAYSCALE: *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_UNSIGNED_BYTE; break; + case UNCOMPRESSED_GRAY_ALPHA: *glInternalFormat = GL_LUMINANCE_ALPHA; *glFormat = GL_LUMINANCE_ALPHA; *glType = GL_UNSIGNED_BYTE; break; + case UNCOMPRESSED_R5G6B5: *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_UNSIGNED_SHORT_5_6_5; break; + case UNCOMPRESSED_R8G8B8: *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_UNSIGNED_BYTE; break; + case UNCOMPRESSED_R5G5B5A1: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_5_5_5_1; break; + case UNCOMPRESSED_R4G4B4A4: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_4_4_4_4; break; + case UNCOMPRESSED_R8G8B8A8: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_BYTE; break; + #if !defined(GRAPHICS_API_OPENGL_11) + case UNCOMPRESSED_R32: if (texFloatSupported) *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + case UNCOMPRESSED_R32G32B32: if (texFloatSupported) *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + case UNCOMPRESSED_R32G32B32A32: if (texFloatSupported) *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + #endif + #elif defined(GRAPHICS_API_OPENGL_33) + case UNCOMPRESSED_GRAYSCALE: *glInternalFormat = GL_R8; *glFormat = GL_RED; *glType = GL_UNSIGNED_BYTE; break; + case UNCOMPRESSED_GRAY_ALPHA: *glInternalFormat = GL_RG8; *glFormat = GL_RG; *glType = GL_UNSIGNED_BYTE; break; + case UNCOMPRESSED_R5G6B5: *glInternalFormat = GL_RGB565; *glFormat = GL_RGB; *glType = GL_UNSIGNED_SHORT_5_6_5; break; + case UNCOMPRESSED_R8G8B8: *glInternalFormat = GL_RGB8; *glFormat = GL_RGB; *glType = GL_UNSIGNED_BYTE; break; + case UNCOMPRESSED_R5G5B5A1: *glInternalFormat = GL_RGB5_A1; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_5_5_5_1; break; + case UNCOMPRESSED_R4G4B4A4: *glInternalFormat = GL_RGBA4; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_4_4_4_4; break; + case UNCOMPRESSED_R8G8B8A8: *glInternalFormat = GL_RGBA8; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_BYTE; break; + case UNCOMPRESSED_R32: if (texFloatSupported) *glInternalFormat = GL_R32F; *glFormat = GL_RED; *glType = GL_FLOAT; break; + case UNCOMPRESSED_R32G32B32: if (texFloatSupported) *glInternalFormat = GL_RGB32F; *glFormat = GL_RGB; *glType = GL_FLOAT; break; + case UNCOMPRESSED_R32G32B32A32: if (texFloatSupported) *glInternalFormat = GL_RGBA32F; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; + #endif + #if !defined(GRAPHICS_API_OPENGL_11) + case COMPRESSED_DXT1_RGB: if (texCompDXTSupported) *glInternalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break; + case COMPRESSED_DXT1_RGBA: if (texCompDXTSupported) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break; + case COMPRESSED_DXT3_RGBA: if (texCompDXTSupported) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; break; + case COMPRESSED_DXT5_RGBA: if (texCompDXTSupported) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; break; + case COMPRESSED_ETC1_RGB: if (texCompETC1Supported) *glInternalFormat = GL_ETC1_RGB8_OES; break; // NOTE: Requires OpenGL ES 2.0 or OpenGL 4.3 + case COMPRESSED_ETC2_RGB: if (texCompETC2Supported) *glInternalFormat = GL_COMPRESSED_RGB8_ETC2; break; // NOTE: Requires OpenGL ES 3.0 or OpenGL 4.3 + case COMPRESSED_ETC2_EAC_RGBA: if (texCompETC2Supported) *glInternalFormat = GL_COMPRESSED_RGBA8_ETC2_EAC; break; // NOTE: Requires OpenGL ES 3.0 or OpenGL 4.3 + case COMPRESSED_PVRT_RGB: if (texCompPVRTSupported) *glInternalFormat = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG; break; // NOTE: Requires PowerVR GPU + case COMPRESSED_PVRT_RGBA: if (texCompPVRTSupported) *glInternalFormat = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG; break; // NOTE: Requires PowerVR GPU + case COMPRESSED_ASTC_4x4_RGBA: if (texCompASTCSupported) *glInternalFormat = GL_COMPRESSED_RGBA_ASTC_4x4_KHR; break; // NOTE: Requires OpenGL ES 3.1 or OpenGL 4.3 + case COMPRESSED_ASTC_8x8_RGBA: if (texCompASTCSupported) *glInternalFormat = GL_COMPRESSED_RGBA_ASTC_8x8_KHR; break; // NOTE: Requires OpenGL ES 3.1 or OpenGL 4.3 + #endif + default: TraceLog(LOG_WARNING, "Texture format not supported"); break; + } +} + // Unload texture from GPU memory void rlUnloadTexture(unsigned int id) { if (id > 0) glDeleteTextures(1, &id); } - // Load a texture to be used for rendering (fbo with color and depth attachments) RenderTexture2D rlLoadRenderTexture(int width, int height) { @@ -2745,8 +2795,8 @@ void *rlReadTexturePixels(Texture2D texture) // GL_UNPACK_ALIGNMENT affects operations that write to OpenGL memory (glTexImage, etc.) glPixelStorei(GL_PACK_ALIGNMENT, 1); - int glInternalFormat, glFormat, glType; - GetGlFormats(texture.format, &glInternalFormat, &glFormat, &glType); + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(texture.format, &glInternalFormat, &glFormat, &glType); unsigned int size = GetPixelDataSize(texture.width, texture.height, texture.format); if ((glInternalFormat != -1) && (texture.format < COMPRESSED_DXT1_RGB)) @@ -4591,58 +4641,6 @@ static void SetStereoView(int eye, Matrix matProjection, Matrix matModelView) #endif //defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) -// Get OpenGL internal formats and data type from raylib PixelFormat -static void GetGlFormats(int format, int *glInternalFormat, int *glFormat, int *glType) -{ - *glInternalFormat = -1; - *glFormat = -1; - *glType = -1; - - switch (format) - { - #if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_21) || defined(GRAPHICS_API_OPENGL_ES2) - // NOTE: on OpenGL ES 2.0 (WebGL), internalFormat must match format and options allowed are: GL_LUMINANCE, GL_RGB, GL_RGBA - case UNCOMPRESSED_GRAYSCALE: *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_UNSIGNED_BYTE; break; - case UNCOMPRESSED_GRAY_ALPHA: *glInternalFormat = GL_LUMINANCE_ALPHA; *glFormat = GL_LUMINANCE_ALPHA; *glType = GL_UNSIGNED_BYTE; break; - case UNCOMPRESSED_R5G6B5: *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_UNSIGNED_SHORT_5_6_5; break; - case UNCOMPRESSED_R8G8B8: *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_UNSIGNED_BYTE; break; - case UNCOMPRESSED_R5G5B5A1: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_5_5_5_1; break; - case UNCOMPRESSED_R4G4B4A4: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_4_4_4_4; break; - case UNCOMPRESSED_R8G8B8A8: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_BYTE; break; - #if !defined(GRAPHICS_API_OPENGL_11) - case UNCOMPRESSED_R32: if (texFloatSupported) *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float - case UNCOMPRESSED_R32G32B32: if (texFloatSupported) *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float - case UNCOMPRESSED_R32G32B32A32: if (texFloatSupported) *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float - #endif - #elif defined(GRAPHICS_API_OPENGL_33) - case UNCOMPRESSED_GRAYSCALE: *glInternalFormat = GL_R8; *glFormat = GL_RED; *glType = GL_UNSIGNED_BYTE; break; - case UNCOMPRESSED_GRAY_ALPHA: *glInternalFormat = GL_RG8; *glFormat = GL_RG; *glType = GL_UNSIGNED_BYTE; break; - case UNCOMPRESSED_R5G6B5: *glInternalFormat = GL_RGB565; *glFormat = GL_RGB; *glType = GL_UNSIGNED_SHORT_5_6_5; break; - case UNCOMPRESSED_R8G8B8: *glInternalFormat = GL_RGB8; *glFormat = GL_RGB; *glType = GL_UNSIGNED_BYTE; break; - case UNCOMPRESSED_R5G5B5A1: *glInternalFormat = GL_RGB5_A1; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_5_5_5_1; break; - case UNCOMPRESSED_R4G4B4A4: *glInternalFormat = GL_RGBA4; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_4_4_4_4; break; - case UNCOMPRESSED_R8G8B8A8: *glInternalFormat = GL_RGBA8; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_BYTE; break; - case UNCOMPRESSED_R32: if (texFloatSupported) *glInternalFormat = GL_R32F; *glFormat = GL_RED; *glType = GL_FLOAT; break; - case UNCOMPRESSED_R32G32B32: if (texFloatSupported) *glInternalFormat = GL_RGB32F; *glFormat = GL_RGB; *glType = GL_FLOAT; break; - case UNCOMPRESSED_R32G32B32A32: if (texFloatSupported) *glInternalFormat = GL_RGBA32F; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; - #endif - #if !defined(GRAPHICS_API_OPENGL_11) - case COMPRESSED_DXT1_RGB: if (texCompDXTSupported) *glInternalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break; - case COMPRESSED_DXT1_RGBA: if (texCompDXTSupported) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break; - case COMPRESSED_DXT3_RGBA: if (texCompDXTSupported) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; break; - case COMPRESSED_DXT5_RGBA: if (texCompDXTSupported) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; break; - case COMPRESSED_ETC1_RGB: if (texCompETC1Supported) *glInternalFormat = GL_ETC1_RGB8_OES; break; // NOTE: Requires OpenGL ES 2.0 or OpenGL 4.3 - case COMPRESSED_ETC2_RGB: if (texCompETC2Supported) *glInternalFormat = GL_COMPRESSED_RGB8_ETC2; break; // NOTE: Requires OpenGL ES 3.0 or OpenGL 4.3 - case COMPRESSED_ETC2_EAC_RGBA: if (texCompETC2Supported) *glInternalFormat = GL_COMPRESSED_RGBA8_ETC2_EAC; break; // NOTE: Requires OpenGL ES 3.0 or OpenGL 4.3 - case COMPRESSED_PVRT_RGB: if (texCompPVRTSupported) *glInternalFormat = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG; break; // NOTE: Requires PowerVR GPU - case COMPRESSED_PVRT_RGBA: if (texCompPVRTSupported) *glInternalFormat = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG; break; // NOTE: Requires PowerVR GPU - case COMPRESSED_ASTC_4x4_RGBA: if (texCompASTCSupported) *glInternalFormat = GL_COMPRESSED_RGBA_ASTC_4x4_KHR; break; // NOTE: Requires OpenGL ES 3.1 or OpenGL 4.3 - case COMPRESSED_ASTC_8x8_RGBA: if (texCompASTCSupported) *glInternalFormat = GL_COMPRESSED_RGBA_ASTC_8x8_KHR; break; // NOTE: Requires OpenGL ES 3.1 or OpenGL 4.3 - #endif - default: TraceLog(LOG_WARNING, "Texture format not supported"); break; - } -} - #if defined(GRAPHICS_API_OPENGL_11) // Mipmaps data is generated after image data // NOTE: Only works with RGBA (4 bytes) data! diff --git a/src/textures.c b/src/textures.c index a7b9d3e2..bffe347a 100644 --- a/src/textures.c +++ b/src/textures.c @@ -148,6 +148,7 @@ static Image LoadPKM(const char *fileName); // Load PKM file #endif #if defined(SUPPORT_FILEFORMAT_KTX) static Image LoadKTX(const char *fileName); // Load KTX file +static void SaveKTX(Image image, const char *fileName); // Save image data as KTX file #endif #if defined(SUPPORT_FILEFORMAT_PVR) static Image LoadPVR(const char *fileName); // Load PVR file @@ -726,10 +727,11 @@ void ExportImage(Image image, const char *fileName) if (IsFileExtension(fileName, ".png")) success = stbi_write_png(fileName, image.width, image.height, 4, imgData, image.width*4); else if (IsFileExtension(fileName, ".bmp")) success = stbi_write_bmp(fileName, image.width, image.height, 4, imgData); else if (IsFileExtension(fileName, ".tga")) success = stbi_write_tga(fileName, image.width, image.height, 4, imgData); - else if (IsFileExtension(fileName, ".jpg")) success = stbi_write_jpg(fileName, image.width, image.height, 4, imgData, 80); // Between 1 and 100 + else if (IsFileExtension(fileName, ".jpg")) success = stbi_write_jpg(fileName, image.width, image.height, 4, imgData, 80); // JPG quality: between 1 and 100 + else if (IsFileExtension(fileName, ".ktx")) SaveKTX(image, fileName); else if (IsFileExtension(fileName, ".raw")) { - // Export raw pixel data + // Export raw pixel data (without header) // NOTE: It's up to the user to track image parameters FILE *rawFile = fopen(fileName, "wb"); fwrite(image.data, GetPixelDataSize(image.width, image.height, image.format), 1, rawFile); @@ -2932,6 +2934,93 @@ static Image LoadKTX(const char *fileName) return image; } + +// Save image data as KTX file +// NOTE: By default KTX 1.1 spec is used, 2.0 is still on draft (01Oct2018) +static void SaveKTX(Image image, const char *fileName) +{ + // KTX file Header (64 bytes) + // v1.1 - https://www.khronos.org/opengles/sdk/tools/KTX/file_format_spec/ + // v2.0 - http://github.khronos.org/KTX-Specification/ - still on draft, not ready for implementation + + typedef struct { + char id[12]; // Identifier: "«KTX 11»\r\n\x1A\n" // KTX 2.0: "«KTX 22»\r\n\x1A\n" + unsigned int endianness; // Little endian: 0x01 0x02 0x03 0x04 + unsigned int glType; // For compressed textures, glType must equal 0 + unsigned int glTypeSize; // For compressed texture data, usually 1 + unsigned int glFormat; // For compressed textures is 0 + unsigned int glInternalFormat; // Compressed internal format + unsigned int glBaseInternalFormat; // Same as glFormat (RGB, RGBA, ALPHA...) // KTX 2.0: UInt32 vkFormat + unsigned int width; // Texture image width in pixels + unsigned int height; // Texture image height in pixels + unsigned int depth; // For 2D textures is 0 + unsigned int elements; // Number of array elements, usually 0 + unsigned int faces; // Cubemap faces, for no-cubemap = 1 + unsigned int mipmapLevels; // Non-mipmapped textures = 1 + unsigned int keyValueDataSize; // Used to encode any arbitrary data... // KTX 2.0: UInt32 levelOrder - ordering of the mipmap levels, usually 0 + // KTX 2.0: UInt32 supercompressionScheme - 0 (None), 1 (Crunch CRN), 2 (Zlib DEFLATE)... + // KTX 2.0 defines additional header elements... + } KTXHeader; + + // NOTE: Before start of every mipmap data block, we have: unsigned int dataSize + + FILE *ktxFile = fopen(fileName, "wb"); + + if (ktxFile == NULL) TraceLog(LOG_WARNING, "[%s] KTX image file could not be created", fileName); + else + { + KTXHeader ktxHeader; + + // KTX identifier (v2.2) + //unsigned char id[12] = { '«', 'K', 'T', 'X', ' ', '1', '1', '»', '\r', '\n', '\x1A', '\n' }; + //unsigned char id[12] = { 0xAB, 0x4B, 0x54, 0x58, 0x20, 0x31, 0x31, 0xBB, 0x0D, 0x0A, 0x1A, 0x0A }; + + // Get the image header + strcpy(ktxHeader.id, "«KTX 11»\r\n\x1A\n"); // KTX 1.1 signature + ktxHeader.endianness = 0; + ktxHeader.glType = 0; // Obtained from image.format + ktxHeader.glTypeSize = 1; + ktxHeader.glFormat = 0; // Obtained from image.format + ktxHeader.glInternalFormat = 0; // Obtained from image.format + ktxHeader.glBaseInternalFormat = 0; + ktxHeader.width = image.width; + ktxHeader.height = image.height; + ktxHeader.depth = 0; + ktxHeader.elements = 0; + ktxHeader.faces = 1; + ktxHeader.mipmapLevels = image.mipmaps; // If it was 0, it means mipmaps should be generated on loading (not for compressed formats) + ktxHeader.keyValueDataSize = 0; // No extra data after the header + + rlGetGlTextureFormats(image.format, &ktxHeader.glInternalFormat, &ktxHeader.glFormat, &ktxHeader.glType); // rlgl module function + ktxHeader.glBaseInternalFormat = ktxHeader.glFormat; // KTX 1.1 only + + // NOTE: We can save into a .ktx all PixelFormats supported by raylib, including compressed formats like DXT, ETC or ASTC + + if (ktxHeader.glFormat == -1) TraceLog(LOG_WARNING, "Image format not supported for KTX export."); + else + { + fwrite(&ktxHeader, 1, sizeof(KTXHeader), ktxFile); + + int width = image.width; + int height = image.height; + int dataOffset = 0; + + // Save all mipmaps data + for (int i = 0; i < image.mipmaps; i++) + { + unsigned int dataSize = GetPixelDataSize(width, height, image.format); + fwrite(&dataSize, 1, sizeof(unsigned int), ktxFile); + fwrite(image.data + dataOffset, 1, dataSize, ktxFile); + + width /= 2; + height /= 2; + dataOffset += dataSize; + } + } + + fclose(ktxFile); // Close file pointer + } +} #endif #if defined(SUPPORT_FILEFORMAT_PVR) |