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-rw-r--r--src/textures.c341
1 files changed, 204 insertions, 137 deletions
diff --git a/src/textures.c b/src/textures.c
index 7d4a0fb4..bfafe5dc 100644
--- a/src/textures.c
+++ b/src/textures.c
@@ -46,12 +46,14 @@
typedef unsigned char byte;
typedef struct {
- unsigned char *data;
- int width;
- int height;
- int mipmaps;
- int format;
-} ImageDDS;
+ unsigned char *data; // Image raw data
+ int width; // Image base width
+ int height; // Image base height
+ //int bpp; // bytes per pixel
+ //int components; // num color components
+ int mipmaps; // Mipmap levels, 1 by default
+ int compFormat; // Compressed data format, 0 if no compression
+} ImageEx;
//----------------------------------------------------------------------------------
// Global Variables Definition
@@ -66,8 +68,7 @@ typedef struct {
//----------------------------------------------------------------------------------
// Module specific Functions Declaration
//----------------------------------------------------------------------------------
-static const char *GetExtension(const char *fileName);
-static ImageDDS LoadDDS(const char *fileName);
+static ImageEx LoadDDS(const char *fileName);
//----------------------------------------------------------------------------------
// Module Functions Definition
@@ -78,6 +79,11 @@ 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) ||
@@ -115,6 +121,35 @@ Image LoadImage(const char *fileName)
TraceLog(INFO, "[%s] Image loaded successfully", 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];
+ image.pixels[pix].g = imageDDS.data[i+1];
+ image.pixels[pix].b = imageDDS.data[i+2];
+ 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] Image extension not recognized, it can't be loaded", fileName);
// ALTERNATIVE: We can load pixel data directly into Color struct pixels array,
@@ -127,7 +162,8 @@ Image LoadImage(const char *fileName)
// Load an image from rRES file (raylib Resource)
Image LoadImageFromRES(const char *rresName, int resId)
{
- // NOTE: rresName could be directly a char array with all the data!!! ---> TODO!
+ // TODO: rresName could be directly a char array with all the data! --> support it! :P
+
Image image;
bool found = false;
@@ -172,8 +208,8 @@ Image LoadImageFromRES(const char *rresName, int resId)
if (infoHeader.type == 0) // IMAGE data type
{
// TODO: Check data compression type
-
// NOTE: We suppose compression type 2 (DEFLATE - default)
+
short imgWidth, imgHeight;
char colorFormat, mipmaps;
@@ -220,11 +256,11 @@ Image LoadImageFromRES(const char *rresName, int resId)
// Depending on type, skip the right amount of parameters
switch (infoHeader.type)
{
- case 0: fseek(rresFile, 6, SEEK_CUR); break; // IMAGE: Jump 6 bytes of parameters
- case 1: fseek(rresFile, 6, SEEK_CUR); break; // SOUND: Jump 6 bytes of parameters
- case 2: fseek(rresFile, 5, SEEK_CUR); break; // MODEL: Jump 5 bytes of parameters (TODO: Review)
- case 3: break; // TEXT: No parameters
- case 4: break; // RAW: No parameters
+ case 0: fseek(rresFile, 6, SEEK_CUR); break; // IMAGE: Jump 6 bytes of parameters
+ case 1: fseek(rresFile, 6, SEEK_CUR); break; // SOUND: Jump 6 bytes of parameters
+ case 2: fseek(rresFile, 5, SEEK_CUR); break; // MODEL: Jump 5 bytes of parameters (TODO: Review)
+ case 3: break; // TEXT: No parameters
+ case 4: break; // RAW: No parameters
default: break;
}
@@ -249,19 +285,26 @@ Texture2D LoadTexture(const char *fileName)
if (strcmp(GetExtension(fileName),"dds") == 0)
{
-#ifdef USE_OPENGL_11
- TraceLog(WARNING, "[%s] DDS file loading requires OpenGL 3.2+ or ES 2.0", fileName);
-#else
- ImageDDS image = LoadDDS(fileName);
+ ImageEx image = LoadDDS(fileName);
+
+ if (image.compFormat == 0)
+ {
+ texture.id = rlglLoadTexture(image.data, image.width, image.height, false);
+ }
+ else
+ {
+#ifdef USE_OPENGL_33
+ texture.id = rlglLoadCompressedTexture(image.data, image.width, image.height, image.mipmaps, image.compFormat);
+#endif
+ }
- texture.glId = rlglLoadCompressedTexture(image.data, image.width, image.height, image.mipmaps, image.format);
-
texture.width = image.width;
texture.height = image.height;
- if (texture.glId == 0) TraceLog(WARNING, "Compressed texture could not be loaded");
- else TraceLog(INFO, "Compressed texture loaded succesfully");
-#endif
+ if (texture.id == 0) TraceLog(WARNING, "[%s] DDS texture could not be loaded", fileName);
+ else TraceLog(INFO, "[%s] DDS texture loaded succesfully", fileName);
+
+ free(image.data);
}
else
{
@@ -269,7 +312,7 @@ Texture2D LoadTexture(const char *fileName)
if (image.pixels != NULL)
{
- texture = CreateTexture(image);
+ texture = CreateTexture(image, false);
UnloadImage(image);
}
}
@@ -283,7 +326,8 @@ Texture2D LoadTextureFromRES(const char *rresName, int resId)
Texture2D texture;
Image image = LoadImageFromRES(rresName, resId);
- texture = CreateTexture(image);
+ texture = CreateTexture(image, false);
+ UnloadImage(image);
return texture;
}
@@ -297,7 +341,7 @@ void UnloadImage(Image image)
// Unload texture from GPU memory
void UnloadTexture(Texture2D texture)
{
- rlDeleteTextures(texture.glId);
+ rlDeleteTextures(texture.id);
}
// Draw a Texture2D
@@ -315,76 +359,32 @@ void DrawTextureV(Texture2D texture, Vector2 position, Color tint)
// Draw a Texture2D with extended parameters
void DrawTextureEx(Texture2D texture, Vector2 position, float rotation, float scale, Color tint)
{
- rlEnableTexture(texture.glId);
+ 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 };
- // NOTE: Rotation is applied before translation and scaling, even being called in inverse order...
- // NOTE: Rotation point is upper-left corner
- rlPushMatrix();
- //rlTranslatef(position.x, position.y, 0.0);
- rlRotatef(rotation, 0, 0, 1);
- rlScalef(scale, scale, 1.0f);
-
- rlBegin(RL_QUADS);
- rlColor4ub(tint.r, tint.g, tint.b, tint.a);
- rlNormal3f(0.0f, 0.0f, 1.0f); // Normal vector pointing towards viewer
-
- rlTexCoord2f(0.0f, 0.0f);
- rlVertex2f(position.x, position.y); // Bottom-left corner for texture and quad
-
- rlTexCoord2f(0.0f, 1.0f);
- rlVertex2f(position.x, position.y + texture.height); // Bottom-right corner for texture and quad
-
- rlTexCoord2f(1.0f, 1.0f);
- rlVertex2f(position.x + texture.width, position.y + texture.height); // Top-right corner for texture and quad
-
- rlTexCoord2f(1.0f, 0.0f);
- rlVertex2f(position.x + texture.width, position.y); // Top-left corner for texture and quad
- rlEnd();
- rlPopMatrix();
-
- rlDisableTexture();
+ DrawTexturePro(texture, sourceRec, destRec, origin, rotation, tint);
}
// Draw a part of a texture (defined by a rectangle)
void DrawTextureRec(Texture2D texture, Rectangle sourceRec, Vector2 position, Color tint)
{
- rlEnableTexture(texture.glId);
-
- 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);
- rlVertex2f(position.x, position.y);
-
- // Bottom-right corner for texture and quad
- rlTexCoord2f((float)sourceRec.x / texture.width, (float)(sourceRec.y + sourceRec.height) / texture.height);
- rlVertex2f(position.x, position.y + sourceRec.height);
-
- // Top-right corner for texture and quad
- rlTexCoord2f((float)(sourceRec.x + sourceRec.width) / texture.width, (float)(sourceRec.y + sourceRec.height) / texture.height);
- rlVertex2f(position.x + sourceRec.width, position.y + sourceRec.height);
-
- // Top-left corner for texture and quad
- rlTexCoord2f((float)(sourceRec.x + sourceRec.width) / texture.width, (float)sourceRec.y / texture.height);
- rlVertex2f(position.x + sourceRec.width, position.y);
- rlEnd();
+ Rectangle destRec = { (int)position.x, (int)position.y, sourceRec.width, sourceRec.height };
+ Vector2 origin = { 0, 0 };
- rlDisableTexture();
+ DrawTexturePro(texture, sourceRec, destRec, origin, 0, tint);
}
// Draw a part of a texture (defined by a rectangle) with 'pro' parameters
-// TODO: Test this function...
+// NOTE: origin is relative to destination rectangle size
void DrawTexturePro(Texture2D texture, Rectangle sourceRec, Rectangle destRec, Vector2 origin, float rotation, Color tint)
{
- rlEnableTexture(texture.glId);
+ rlEnableTexture(texture.id);
- // NOTE: First we translate texture to origin to apply rotation and translation from there
rlPushMatrix();
- rlTranslatef(-origin.x, -origin.y, 0);
+ rlTranslatef(destRec.x, destRec.y, 0);
rlRotatef(rotation, 0, 0, 1);
- rlTranslatef(destRec.x + origin.x, destRec.y + origin.y, 0);
+ rlTranslatef(-origin.x, -origin.y, 0);
rlBegin(RL_QUADS);
rlColor4ub(tint.r, tint.g, tint.b, tint.a);
@@ -395,65 +395,84 @@ void DrawTexturePro(Texture2D texture, Rectangle sourceRec, Rectangle destRec, V
rlVertex2f(0.0f, 0.0f);
// Bottom-right corner for texture and quad
- rlTexCoord2f((float)(sourceRec.x + sourceRec.width) / texture.width, (float)sourceRec.y / texture.height);
- rlVertex2f(destRec.width, 0.0f);
+ 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);
rlVertex2f(destRec.width, destRec.height);
// Top-left corner for texture and quad
- rlTexCoord2f((float)sourceRec.x / texture.width, (float)(sourceRec.y + sourceRec.height) / texture.height);
- rlVertex2f(0.0f, destRec.height);
+ rlTexCoord2f((float)(sourceRec.x + sourceRec.width) / texture.width, (float)sourceRec.y / texture.height);
+ rlVertex2f(destRec.width, 0.0f);
rlEnd();
rlPopMatrix();
rlDisableTexture();
}
-Texture2D CreateTexture(Image image)
+// Create a texture from an image
+// NOTE: image is not unloaded, iot must be done manually
+Texture2D CreateTexture(Image image, bool genMipmaps)
{
Texture2D texture;
- unsigned char *img = malloc(image.width * image.height * 4);
-
- int j = 0;
+ // Init texture to default values
+ texture.id = 0;
+ texture.width = 0;
+ texture.height = 0;
- for (int i = 0; i < image.width * image.height * 4; i += 4)
+ if (image.pixels != NULL)
{
- img[i] = image.pixels[j].r;
- img[i+1] = image.pixels[j].g;
- img[i+2] = image.pixels[j].b;
- img[i+3] = image.pixels[j].a;
+ unsigned char *imgData = malloc(image.width * image.height * 4);
- j++;
- }
+ 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++;
+ }
- texture.glId = rlglLoadTexture(image.width, image.height, img);
+ // NOTE: rlglLoadTexture() can generate mipmaps (POT image required)
+ texture.id = rlglLoadTexture(imgData, image.width, image.height, genMipmaps);
- texture.width = image.width;
- texture.height = image.height;
-
- TraceLog(INFO, "Texture created succesfully");
-
- free(img);
+ texture.width = image.width;
+ texture.height = image.height;
+
+ TraceLog(INFO, "[ID %i] Texture created succesfully", texture.id);
+
+ free(imgData);
+ }
+ else TraceLog(WARNING, "Texture could not be created, image data is not valid");
return texture;
}
-// Get the extension for a filename
-static const char *GetExtension(const char *fileName)
-{
- const char *dot = strrchr(fileName, '.');
- if(!dot || dot == fileName) return "";
- return (dot + 1);
-}
-
-// Loading DDS image compressed data
-ImageDDS LoadDDS(const char *fileName)
+// Loading DDS image data (compressed or uncompressed)
+// NOTE: Compressed data loading not supported on OpenGL 1.1
+ImageEx LoadDDS(const char *fileName)
{
- // TODO: Review and expand DDS file loading to support uncompressed formats and new formats
+ #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
+ #ifndef GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
+ #define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
+ #endif
+
+ #ifndef GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
+ #define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
+ #endif
+
// DDS Pixel Format
typedef struct {
unsigned int size;
@@ -484,7 +503,7 @@ ImageDDS LoadDDS(const char *fileName)
unsigned int reserved2;
} ddsHeader;
- ImageDDS image;
+ ImageEx image;
ddsHeader header;
FILE *ddsFile = fopen(fileName, "rb");
@@ -510,36 +529,84 @@ ImageDDS LoadDDS(const char *fileName)
// Get the surface descriptor
fread(&header, sizeof(ddsHeader), 1, ddsFile);
- int height = header.height;
- int width = header.width;
- int linearSize = header.pitchOrLinearSize;
- int mipMapCount = header.mipMapCount;
- int fourCC = header.ddspf.fourCC;
-
TraceLog(DEBUG, "[%s] DDS file header size: %i", fileName, sizeof(ddsHeader));
-
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, fourCC);
+ TraceLog(DEBUG, "[%s] DDS file format: 0x%x", fileName, header.ddspf.fourCC);
- int bufsize;
+ image.width = header.width;
+ image.height = header.height;
+ image.mipmaps = 1;
+ image.compFormat = 0;
- // Calculate data size, including all mipmaps
- bufsize = mipMapCount > 1 ? linearSize * 2 : linearSize;
+ 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);
- image.data = (unsigned char*)malloc(bufsize * sizeof(unsigned char));
+ 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 x = 0; x < image.width; x++)
+ {
+ *dest++ = *src++;
+ *dest++ = *src++;
+ *dest++ = *src++;
+ *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, 1, bufsize, ddsFile);
+ fread(image.data, image.width*image.height*4, 1, ddsFile);
- // Close file pointer
- fclose(ddsFile);
-
- //int components = (fourCC == FOURCC_DXT1) ? 3 : 4; // Not required
+ image.mipmaps = 1;
+ image.compFormat = 0;
+ }
+ else if ((header.ddspf.flags == 0x04) && (header.ddspf.fourCC > 0))
+ {
+#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);
+
+ // 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;
+ default: break;
+ }
- image.width = width;
- image.height = height;
- image.mipmaps = mipMapCount;
- image.format = fourCC;
+ // NOTE: Image num color components not required... for now...
+ //if (fourCC == FOURCC_DXT1) image.components = 3;
+ //else image.components = 4;
+#endif
+ }
}
}
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