Support custom modules inclusion

Allow to choose which modules are compiled with raylib, if some modules are excluded from compilation, required functionality is not available but smaller builds are possible.

1 files changed, 47 insertions, 30 deletions

diff --git a/src/rtextures.c b/src/rtextures.c
index 9b823378..cad3545c 100644
--- a/src/rtextures.c
+++ b/src/rtextures.c
@@ -4,6 +4,9 @@
 *
 *   CONFIGURATION:
 *
+*   #define SUPPORT_MODULE_RTEXTURES
+*       rtextures module is included in the build
+*
 *   #define SUPPORT_FILEFORMAT_BMP
 *   #define SUPPORT_FILEFORMAT_PNG
 *   #define SUPPORT_FILEFORMAT_TGA
@@ -65,11 +68,13 @@
     #include "config.h"         // Defines module configuration flags
 #endif
 
+#if defined(SUPPORT_MODULE_RTEXTURES)
+
 #include "utils.h"              // Required for: TRACELOG() and fopen() Android mapping
 #include "rlgl.h"               // OpenGL abstraction layer to OpenGL 1.1, 3.3 or ES2
 
 #include <stdlib.h>             // Required for: malloc(), free()
-#include <string.h>             // Required for: strlen() [Used in ImageTextEx()]
+#include <string.h>             // Required for: strlen() [Used in ImageTextEx()], strcmp() [Used in LoadImageFromMemory()]
 #include <math.h>               // Required for: fabsf()
 #include <stdio.h>              // Required for: sprintf() [Used in ExportImageAsCode()]
 
@@ -296,36 +301,33 @@ Image LoadImageAnim(const char *fileName, int *frames)
 }
 
 // Load image from memory buffer, fileType refers to extension: i.e. ".png"
+// WARNING: File extension must be provided in lower-case
 Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, int dataSize)
 {
     Image image = { 0 };
 
-    char fileExtLower[16] = { 0 };
-    strcpy(fileExtLower, TextToLower(fileType));
-
 #if defined(SUPPORT_FILEFORMAT_PNG)
-    if ((TextIsEqual(fileExtLower, ".png"))
+    if ((strcmp(fileType, ".png") == 0)
 #else
     if ((false)
 #endif
 #if defined(SUPPORT_FILEFORMAT_BMP)
-        || (TextIsEqual(fileExtLower, ".bmp"))
+        || (strcmp(fileType, ".bmp") == 0)
 #endif
 #if defined(SUPPORT_FILEFORMAT_TGA)
-        || (TextIsEqual(fileExtLower, ".tga"))
+        || (strcmp(fileType, ".tga") == 0)
 #endif
 #if defined(SUPPORT_FILEFORMAT_JPG)
-        || (TextIsEqual(fileExtLower, ".jpg") ||
-            TextIsEqual(fileExtLower, ".jpeg"))
+        || ((strcmp(fileType, ".jpg") == 0) || (strcmp(fileType, ".jpeg") == 0))
 #endif
 #if defined(SUPPORT_FILEFORMAT_GIF)
-        || (TextIsEqual(fileExtLower, ".gif"))
+        || (strcmp(fileType, ".gif") == 0)
 #endif
 #if defined(SUPPORT_FILEFORMAT_PIC)
-        || (TextIsEqual(fileExtLower, ".pic"))
+        || (strcmp(fileType, ".pic") == 0)
 #endif
 #if defined(SUPPORT_FILEFORMAT_PSD)
-        || (TextIsEqual(fileExtLower, ".psd"))
+        || (strcmp(fileType, ".psd") == 0)
 #endif
        )
     {
@@ -350,7 +352,7 @@ Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, i
 #endif
     }
 #if defined(SUPPORT_FILEFORMAT_HDR)
-    else if (TextIsEqual(fileExtLower, ".hdr"))
+    else if (strcmp(fileType, ".hdr") == 0)
     {
 #if defined(STBI_REQUIRED)
         if (fileData != NULL)
@@ -373,7 +375,7 @@ Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, i
     }
 #endif
 #if defined(SUPPORT_FILEFORMAT_QOI)
-    else if (TextIsEqual(fileExtLower, ".qoi")) 
+    else if (strcmp(fileType, ".qoi") == 0) 
     {
         qoi_desc desc = { 0 };
         image.data = qoi_decode(fileData, dataSize, &desc, 4);
@@ -384,19 +386,19 @@ Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, i
     }
 #endif
 #if defined(SUPPORT_FILEFORMAT_DDS)
-    else if (TextIsEqual(fileExtLower, ".dds")) image = LoadDDS(fileData, dataSize);
+    else if (strcmp(fileType, ".dds") == 0) image = LoadDDS(fileData, dataSize);
 #endif
 #if defined(SUPPORT_FILEFORMAT_PKM)
-    else if (TextIsEqual(fileExtLower, ".pkm")) image = LoadPKM(fileData, dataSize);
+    else if (strcmp(fileType, ".pkm") == 0) image = LoadPKM(fileData, dataSize);
 #endif
 #if defined(SUPPORT_FILEFORMAT_KTX)
-    else if (TextIsEqual(fileExtLower, ".ktx")) image = LoadKTX(fileData, dataSize);
+    else if (strcmp(fileType, ".ktx") == 0) image = LoadKTX(fileData, dataSize);
 #endif
 #if defined(SUPPORT_FILEFORMAT_PVR)
-    else if (TextIsEqual(fileExtLower, ".pvr")) image = LoadPVR(fileData, dataSize);
+    else if (strcmp(fileType, ".pvr") == 0) image = LoadPVR(fileData, dataSize);
 #endif
 #if defined(SUPPORT_FILEFORMAT_ASTC)
-    else if (TextIsEqual(fileExtLower, ".astc")) image = LoadASTC(fileData, dataSize);
+    else if (strcmp(fileType, ".astc") == 0) image = LoadASTC(fileData, dataSize);
 #endif
     else TRACELOG(LOG_WARNING, "IMAGE: Data format not supported");
 
@@ -1133,35 +1135,41 @@ void ImageToPOT(Image *image, Color fill)
 // Create an image from text (default font)
 Image ImageText(const char *text, int fontSize, Color color)
 {
+    Image imText = { 0 };
+#if defined(SUPPORT_MODULE_RTEXT)
     int defaultFontSize = 10;   // Default Font chars height in pixel
     if (fontSize < defaultFontSize) fontSize = defaultFontSize;
     int spacing = fontSize/defaultFontSize;
-
-    Image imText = ImageTextEx(GetFontDefault(), text, (float)fontSize, (float)spacing, color);
-
+    imText = ImageTextEx(GetFontDefault(), text, (float)fontSize, (float)spacing, color);   // WARNING: Module required: rtext
+#else
+    imText = GenImageColor(200, 60, BLACK);     // Generating placeholder black image rectangle
+    TRACELOG(LOG_WARNING, "IMAGE: ImageTextEx() requires module: rtext");
+#endif
     return imText;
 }
 
 // Create an image from text (custom sprite font)
 Image ImageTextEx(Font font, const char *text, float fontSize, float spacing, Color tint)
 {
+    Image imText = { 0 };
+#if defined(SUPPORT_MODULE_RTEXT)
     int size = (int)strlen(text);   // Get size in bytes of text
 
     int textOffsetX = 0;            // Image drawing position X
     int textOffsetY = 0;            // Offset between lines (on line break '\n')
 
     // NOTE: Text image is generated at font base size, later scaled to desired font size
-    Vector2 imSize = MeasureTextEx(font, text, (float)font.baseSize, spacing);
+    Vector2 imSize = MeasureTextEx(font, text, (float)font.baseSize, spacing);  // WARNING: Module required: rtext
 
     // Create image to store text
-    Image imText = GenImageColor((int)imSize.x, (int)imSize.y, BLANK);
+    imText = GenImageColor((int)imSize.x, (int)imSize.y, BLANK);
 
     for (int i = 0; i < size; i++)
     {
         // Get next codepoint from byte string and glyph index in font
         int codepointByteCount = 0;
-        int codepoint = GetCodepoint(&text[i], &codepointByteCount);
-        int index = GetGlyphIndex(font, codepoint);
+        int codepoint = GetCodepoint(&text[i], &codepointByteCount);    // WARNING: Module required: rtext
+        int index = GetGlyphIndex(font, codepoint);                     // WARNING: Module required: rtext
 
         // NOTE: Normally we exit the decoding sequence as soon as a bad byte is found (and return 0x3f)
         // but we need to draw all of the bad bytes using the '?' symbol moving one byte
@@ -1196,10 +1204,14 @@ Image ImageTextEx(Font font, const char *text, float fontSize, float spacing, Co
         TRACELOG(LOG_INFO, "IMAGE: Text scaled by factor: %f", scaleFactor);
 
         // Using nearest-neighbor scaling algorithm for default font
+        // WARNING: Module required: rtext
         if (font.texture.id == GetFontDefault().texture.id) ImageResizeNN(&imText, (int)(imSize.x*scaleFactor), (int)(imSize.y*scaleFactor));
         else ImageResize(&imText, (int)(imSize.x*scaleFactor), (int)(imSize.y*scaleFactor));
     }
-
+#else
+    imText = GenImageColor(200, 60, BLACK);     // Generating placeholder black image rectangle
+    TRACELOG(LOG_WARNING, "IMAGE: ImageTextEx() requires module: rtext");
+#endif
     return imText;
 }
 
@@ -2809,10 +2821,13 @@ void ImageDraw(Image *dst, Image src, Rectangle srcRec, Rectangle dstRec, Color
 // Draw text (default font) within an image (destination)
 void ImageDrawText(Image *dst, const char *text, int posX, int posY, int fontSize, Color color)
 {
+#if defined(SUPPORT_MODULE_RTEXT)
     Vector2 position = { (float)posX, (float)posY };
-
-    // NOTE: For default font, sapcing is set to desired font size / default font size (10)
-    ImageDrawTextEx(dst, GetFontDefault(), text, position, (float)fontSize, (float)fontSize/10, color);
+    // NOTE: For default font, spacing is set to desired font size / default font size (10)
+    ImageDrawTextEx(dst, GetFontDefault(), text, position, (float)fontSize, (float)fontSize/10, color);   // WARNING: Module required: rtext
+#else
+    TRACELOG(LOG_WARNING, "IMAGE: ImageDrawText() requires module: rtext");
+#endif
 }
 
 // Draw text (custom sprite font) within an image (destination)
@@ -4803,3 +4818,5 @@ static Vector4 *LoadImageDataNormalized(Image image)
 
     return pixels;
 }
+
+#endif      // SUPPORT_MODULE_RTEXTURES