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Merge pull request #10359 from samcake/ambient

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Fixing the by region update transfer of the compressed texture
This commit is contained in:
Chris Collins 2017-05-04 15:52:38 -07:00 committed by GitHub
commit 7c36dd3282
2 changed files with 10 additions and 4 deletions
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7
libraries/gpu-gl/src/gpu/gl41/GL41BackendTexture.cpp
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@ -525,11 +525,14 @@ void GL41VariableAllocationTexture::populateTransferQueue() {
// break down the transfers into chunks so that no single transfer is
// consuming more than X bandwidth
// For compressed format, regions must be a multiple of the 4x4 tiles, so enforce 4 lines as the minimum block
auto mipSize = _gpuObject.getStoredMipFaceSize(sourceMip, face);
const auto lines = mipDimensions.y;
auto bytesPerLine = mipSize / lines;
const uint32_t BLOCK_NUM_LINES { 4 };
const auto numBlocks = (lines + (BLOCK_NUM_LINES - 1)) / BLOCK_NUM_LINES;
auto bytesPerBlock = mipSize / numBlocks;
Q_ASSERT(0 == (mipSize % lines));
uint32_t linesPerTransfer = (uint32_t)(MAX_TRANSFER_SIZE / bytesPerLine);
uint32_t linesPerTransfer = BLOCK_NUM_LINES * (uint32_t)(MAX_TRANSFER_SIZE / bytesPerBlock);
uint32_t lineOffset = 0;
while (lineOffset < lines) {
uint32_t linesToCopy = std::min<uint32_t>(lines - lineOffset, linesPerTransfer);

7
libraries/gpu-gl/src/gpu/gl45/GL45BackendVariableTexture.cpp
View file

@ -196,11 +196,14 @@ void GL45ResourceTexture::populateTransferQueue() {
// break down the transfers into chunks so that no single transfer is
// consuming more than X bandwidth
// For compressed format, regions must be a multiple of the 4x4 tiles, so enforce 4 lines as the minimum block
auto mipSize = _gpuObject.getStoredMipFaceSize(sourceMip, face);
const auto lines = mipDimensions.y;
auto bytesPerLine = mipSize / lines;
const uint32_t BLOCK_NUM_LINES { 4 };
const auto numBlocks = (lines + (BLOCK_NUM_LINES - 1)) / BLOCK_NUM_LINES;
auto bytesPerBlock = mipSize / numBlocks;
Q_ASSERT(0 == (mipSize % lines));
uint32_t linesPerTransfer = (uint32_t)(MAX_TRANSFER_SIZE / bytesPerLine);
uint32_t linesPerTransfer = BLOCK_NUM_LINES * (uint32_t)(MAX_TRANSFER_SIZE / bytesPerBlock);
uint32_t lineOffset = 0;
while (lineOffset < lines) {
uint32_t linesToCopy = std::min<uint32_t>(lines - lineOffset, linesPerTransfer);