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[Fix] (TextureState.cpp): Fix texture buffer allocation in UpdateRegion2D to prevent memmove crash.

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This commit is contained in:
BZLZHH
2025-04-30 17:57:12 +08:00
parent e644efbe81
commit c5c5172087
1 changed files with 7 additions and 2 deletions
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MG/MG_GL/State/Texture/TextureState.cpp
+7 -2
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@@ -391,8 +391,11 @@ GLenum TextureState::UpdateRegion2D(GLenum target, GLint level, GLint xoffset,
// TODO: Check the buffer data size. // TODO: Check the buffer data size.
const size_t dstRowStride = mip.width * bytesPerPixel; const size_t dstRowStride = mip.width * bytesPerPixel;
if (mip.pixelData.empty()) size_t dstTotalSize = mip.width * mip.height * bytesPerPixel;
mip.pixelData.resize(srcSize); if (mip.pixelData.size() < dstTotalSize) {
mip.pixelData.resize(dstTotalSize);
MG_Util::Debug::LogD("MG_State: Texture: Resized pixelData to %zu bytes for mip level %d", dstTotalSize, level);
}
GLubyte* dstData = mip.pixelData.data() + yoffset * dstRowStride + xoffset * bytesPerPixel; GLubyte* dstData = mip.pixelData.data() + yoffset * dstRowStride + xoffset * bytesPerPixel;
MG_Util::Debug::LogD("MG_State: Texture: UpdateRegion2D srcRowStride=%zu, dstRowStride=%zu", srcRowStride, dstRowStride); MG_Util::Debug::LogD("MG_State: Texture: UpdateRegion2D srcRowStride=%zu, dstRowStride=%zu", srcRowStride, dstRowStride);
@@ -414,6 +417,8 @@ GLenum TextureState::UpdateRegion2D(GLenum target, GLint level, GLint xoffset,
dstRow[i] = ReverseBits(srcRow[i]); dstRow[i] = ReverseBits(srcRow[i]);
} }
} else { } else {
MG_Util::Debug::LogD("MG_State: Texture: UpdateRegion2D memmove(dst=%p, src=%p, size=%zu) called.", dstRow, srcRow, width * bytesPerPixel);
memmove(dstRow, srcRow, width * bytesPerPixel); memmove(dstRow, srcRow, width * bytesPerPixel);
} }
} }