Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-08-09 05:17:02 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Fix alignment of small pages

Browse source
This commit is contained in:
Brad Davis 2016-09-06 13:22:27 -07:00
parent f18b8f80fe
commit a9ba92f16c
1 changed files with 7 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
libraries/gpu-gl/src/gpu/gl45/GL45BackendTexture.cpp
View file

@ -118,11 +118,17 @@ bool TransferState::increment() {
return false; return false;
} }
#define DEFAULT_GL_PIXEL_ALIGNMENT 4
void TransferState::populatePage(uint8_t* dst) { void TransferState::populatePage(uint8_t* dst) {
uvec3 pageSize = currentPageSize(); uvec3 pageSize = currentPageSize();
auto bytesPerPageLine = _bytesPerPixel * pageSize.x;
if (0 != (bytesPerPageLine % DEFAULT_GL_PIXEL_ALIGNMENT)) {
bytesPerPageLine += DEFAULT_GL_PIXEL_ALIGNMENT - (bytesPerPageLine % DEFAULT_GL_PIXEL_ALIGNMENT);
assert(0 == (bytesPerPageLine % DEFAULT_GL_PIXEL_ALIGNMENT));
}
for (uint32_t y = 0; y < pageSize.y; ++y) { for (uint32_t y = 0; y < pageSize.y; ++y) {
uint32_t srcOffset = (_bytesPerLine * (_mipOffset.y + y)) + (_bytesPerPixel * _mipOffset.x); uint32_t srcOffset = (_bytesPerLine * (_mipOffset.y + y)) + (_bytesPerPixel * _mipOffset.x);
uint32_t dstOffset = (_bytesPerPixel * pageSize.x) * y; uint32_t dstOffset = bytesPerPageLine * y;
memcpy(dst + dstOffset, _srcPointer + srcOffset, pageSize.x * _bytesPerPixel); memcpy(dst + dstOffset, _srcPointer + srcOffset, pageSize.x * _bytesPerPixel);
} }
} }