REVIEWED: ExportImage(), optimized #1218

Avoid GetImageData() retrieval and free

src/textures.c

@@ -376,22 +376,20 @@ void ExportImage(Image image, const char *fileName)
     int success = 0;
 
 #if defined(SUPPORT_IMAGE_EXPORT)
-    // NOTE: Getting Color array as RGBA unsigned char values
-    unsigned char *imgData = (unsigned char *)GetImageData(image);
 
 #if defined(SUPPORT_FILEFORMAT_PNG)
-    if (IsFileExtension(fileName, ".png")) success = stbi_write_png(fileName, image.width, image.height, 4, imgData, image.width*4);
+    if (IsFileExtension(fileName, ".png")) success = stbi_write_png(fileName, image.width, image.height, 4, (unsigned char *)image.data, image.width*4);
 #else
     if (false) {}
 #endif
 #if defined(SUPPORT_FILEFORMAT_BMP)
-    else if (IsFileExtension(fileName, ".bmp")) success = stbi_write_bmp(fileName, image.width, image.height, 4, imgData);
+    else if (IsFileExtension(fileName, ".bmp")) success = stbi_write_bmp(fileName, image.width, image.height, 4, (unsigned char *)image.data);
 #endif
 #if defined(SUPPORT_FILEFORMAT_TGA)
-    else if (IsFileExtension(fileName, ".tga")) success = stbi_write_tga(fileName, image.width, image.height, 4, imgData);
+    else if (IsFileExtension(fileName, ".tga")) success = stbi_write_tga(fileName, image.width, image.height, 4, (unsigned char *)image.data);
 #endif
 #if defined(SUPPORT_FILEFORMAT_JPG)
-    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, ".jpg")) success = stbi_write_jpg(fileName, image.width, image.height, 4, (unsigned char *)image.data, 80);  // JPG quality: between 1 and 100
 #endif
 #if defined(SUPPORT_FILEFORMAT_KTX)
     else if (IsFileExtension(fileName, ".ktx")) success = SaveKTX(image, fileName);
@@ -403,9 +401,7 @@ void ExportImage(Image image, const char *fileName)
         SaveFileData(fileName, image.data, GetPixelDataSize(image.width, image.height, image.format));
         success = true;
     }
-
-    RL_FREE(imgData);
-#endif
+#endif      // SUPPORT_IMAGE_EXPORT
 
     if (success != 0) TRACELOG(LOG_INFO, "FILEIO: [%s] Image exported successfully", fileName);
     else TRACELOG(LOG_WARNING, "FILEIO: [%s] Failed to export image", fileName);