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REVIEWED: GetPixelDataSize(), avoid allocations >2GB - ROS: CLN-013

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REVIEWED: `GenImageColor()`, `ImageRotate()`
This commit is contained in:
Ray 2026-07-11 16:42:57 +02:00
commit cfe56d97ea
1 changed files with 61 additions and 42 deletions
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18
src/rlgl.h
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@ -5236,7 +5236,9 @@ static int rlGetPixelDataSize(int width, int height, int format)
{
int blockWidth = (width + 3)/4;
int blockHeight = (height + 3)/4;
dataSize = blockWidth*blockHeight*8;
unsigned long long dataSizeBytes = blockWidth*blockHeight*8;
if (dataSizeBytes < INT_MAX) dataSize = (int)dataSizeBytes;
} break;
case RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA:
case RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA:
@ -5245,13 +5247,17 @@ static int rlGetPixelDataSize(int width, int height, int format)
{
int blockWidth = (width + 3)/4;
int blockHeight = (height + 3)/4;
dataSize = blockWidth*blockHeight*16;
unsigned long long dataSizeBytes = blockWidth*blockHeight*16;
if (dataSizeBytes < INT_MAX) dataSize = (int)dataSizeBytes;
} break;
case RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: // 4 bytes per each 4x4 block
{
int blockWidth = (width + 3)/4;
int blockHeight = (height + 3)/4;
dataSize = blockWidth*blockHeight*4;
unsigned long long dataSizeBytes = blockWidth*blockHeight*4;
if (dataSizeBytes < INT_MAX) dataSize = (int)dataSizeBytes;
} break;
default: break;
}
@ -5260,9 +5266,11 @@ static int rlGetPixelDataSize(int width, int height, int format)
if ((format >= RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE) &&
(format <= RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16))
{
double bytesPerPixel = (double)bpp/8.0;
dataSize = (int)(bytesPerPixel*width*height); // Total data size in bytes
unsigned long long dataSizeBytes = (width*height*bpp) >> 3; // Get size in bytes (dividing by 8)
if (dataSizeBytes < INT_MAX) dataSize = (int)dataSizeBytes;
}
if (dataSize == 0) TRACELOG(LOG_WARNING, "Requested image size is larger than 2GB, it can not be allocated");
return dataSize;
}