Reorganized texture functions

Removed ImageAlphaMask() dependency on [text] LoadBMFont()

src/config.h

@@ -98,11 +98,14 @@
 
 // Support image export functionality (.png, .bmp, .tga, .jpg)
 #define SUPPORT_IMAGE_EXPORT        1
-// Support multiple image editing functions to scale, adjust colors, flip, draw on images, crop...
-// If not defined only three image editing functions supported: ImageFormat(), ImageAlphaMask(), ImageToPOT()
-#define SUPPORT_IMAGE_MANIPULATION  1
+
 // Support procedural image generation functionality (gradient, spot, perlin-noise, cellular)
 #define SUPPORT_IMAGE_GENERATION    1
+// Support multiple image editing functions to scale, adjust colors, flip, draw on images, crop...
+// If not defined only three image editing functions supported: ImageFormat(), ImageCrop(), ImageToPOT()
+#define SUPPORT_IMAGE_MANIPULATION  1
+// Support drawing on image (software rendering)
+#define SUPPORT_IMAGE_DRAWING       1
 
 //------------------------------------------------------------------------------------
 // Module: text - Configuration Flags

src/raylib.h

@@ -1110,8 +1110,6 @@ RLAPI Image LoadImageRaw(const char *fileName, int width, int height, int format
 RLAPI void UnloadImage(Image image);                                                                     // Unload image from CPU memory (RAM)
 RLAPI void ExportImage(Image image, const char *fileName);                                               // Export image data to file
 RLAPI void ExportImageAsCode(Image image, const char *fileName);                                         // Export image as code file defining an array of bytes
-RLAPI Color *GetImageData(Image image);                                                                  // Get pixel data from image as a Color struct array
-RLAPI Vector4 *GetImageDataNormalized(Image image);                                                      // Get pixel data from image as Vector4 array (float normalized)
 
 // Image generation functions
 RLAPI Image GenImageColor(int width, int height, Color color);                                           // Generate image: plain color
@@ -1128,13 +1126,13 @@ RLAPI Image ImageCopy(Image image);
 RLAPI Image ImageFromImage(Image image, Rectangle rec);                                                  // Create an image from another image piece
 RLAPI Image ImageText(const char *text, int fontSize, Color color);                                      // Create an image from text (default font)
 RLAPI Image ImageTextEx(Font font, const char *text, float fontSize, float spacing, Color tint);         // Create an image from text (custom sprite font)
-RLAPI void ImageToPOT(Image *image, Color fillColor);                                                    // Convert image to POT (power-of-two)
 RLAPI void ImageFormat(Image *image, int newFormat);                                                     // Convert image data to desired format
-RLAPI void ImageAlphaMask(Image *image, Image alphaMask);                                                // Apply alpha mask to image
-RLAPI void ImageAlphaClear(Image *image, Color color, float threshold);                                  // Clear alpha channel to desired color
+RLAPI void ImageToPOT(Image *image, Color fillColor);                                                    // Convert image to POT (power-of-two)
+RLAPI void ImageCrop(Image *image, Rectangle crop);                                                      // Crop an image to a defined rectangle
 RLAPI void ImageAlphaCrop(Image *image, float threshold);                                                // Crop image depending on alpha value
+RLAPI void ImageAlphaClear(Image *image, Color color, float threshold);                                  // Clear alpha channel to desired color
+RLAPI void ImageAlphaMask(Image *image, Image alphaMask);                                                // Apply alpha mask to image
 RLAPI void ImageAlphaPremultiply(Image *image);                                                          // Premultiply alpha channel
-RLAPI void ImageCrop(Image *image, Rectangle crop);                                                      // Crop an image to a defined rectangle
 RLAPI void ImageResize(Image *image, int newWidth, int newHeight);                                       // Resize image (Bicubic scaling algorithm)
 RLAPI void ImageResizeNN(Image *image, int newWidth,int newHeight);                                      // Resize image (Nearest-Neighbor scaling algorithm)
 RLAPI void ImageResizeCanvas(Image *image, int newWidth, int newHeight, int offsetX, int offsetY, Color color);  // Resize canvas and fill with color
@@ -1150,7 +1148,10 @@ RLAPI void ImageColorGrayscale(Image *image);
 RLAPI void ImageColorContrast(Image *image, float contrast);                                             // Modify image color: contrast (-100 to 100)
 RLAPI void ImageColorBrightness(Image *image, int brightness);                                           // Modify image color: brightness (-255 to 255)
 RLAPI void ImageColorReplace(Image *image, Color color, Color replace);                                  // Modify image color: replace color
+
+RLAPI Color *GetImageData(Image image);                                                                  // Get pixel data from image as a Color struct array
 RLAPI Color *ImageExtractPalette(Image image, int maxPaletteSize, int *extractCount);                    // Extract color palette from image to maximum size (memory should be freed)
+RLAPI Vector4 *GetImageDataNormalized(Image image);                                                      // Get pixel data from image as Vector4 array (float normalized)
 RLAPI Rectangle GetImageAlphaBorder(Image image, float threshold);                                       // Get image alpha border rectangle
 
 // Image drawing functions

src/text.c

@@ -1733,8 +1733,17 @@ static Font LoadBMFont(const char *fileName)
     if (imFont.format == UNCOMPRESSED_GRAYSCALE)
     {
         // Convert image to GRAYSCALE + ALPHA, using the mask as the alpha channel
-        ImageAlphaMask(&imFont, imFont);
-        for (int p = 0; p < (imFont.width*imFont.height*2); p += 2) ((unsigned char *)(imFont.data))[p] = 0xff;
+        Image imFontAlpha = ImageCopy(imFont);
+        ImageFormat(&imFontAlpha, UNCOMPRESSED_GRAY_ALPHA);
+        
+        for (int p = 0, i = 0; p < (imFont.width*imFont.height*2); p += 2, i++)
+        {
+            ((unsigned char *)(imFontAlpha.data))[p] = 0xff;
+            ((unsigned char *)(imFontAlpha.data))[p + 1] = ((unsigned char *)imFont.data)[i];
+        }
+        
+        UnloadImage(imFont);
+        imFont = imFontAlpha;
     }
 
     font.texture = LoadTextureFromImage(imFont);