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app_server: remove GPU->GPU rect shifting code

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It is not used anymore and is very slow on real hardware because it read
GPU memory by CPU.

Change-Id: I06f7ca072220b758d849921e844bb2aa75342e2c
Reviewed-on: https://review.haiku-os.org/c/haiku/+/8680
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: waddlesplash <[email protected]>
This commit is contained in:
X512
2024-12-18 17:26:41 +00:00
committed by waddlesplash
parent bd01f3f156
commit aa453612ef
2 changed files with 7 additions and 24 deletions
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src/servers/app/drawing/DrawingEngine.cpp
+6 -23
View File
@@ -1412,7 +1412,7 @@ DrawingEngine::CopyRect(BRect src, int32 xOffset, int32 yOffset) const
uint32 width = src.IntegerWidth() + 1;
uint32 height = src.IntegerHeight() + 1;
_CopyRect(buffer->IsGraphicsMemory(), bits, width, height, bytesPerRow,
_CopyRect(bits, width, height, bytesPerRow,
xOffset, yOffset);
// offset dest again, because it is return value
@@ -1431,7 +1431,7 @@ DrawingEngine::SetRendererOffset(int32 offsetX, int32 offsetY)
void
DrawingEngine::_CopyRect(bool isGraphicsMemory, uint8* src, uint32 width, uint32 height,
DrawingEngine::_CopyRect(uint8* src, uint32 width, uint32 height,
uint32 bytesPerRow, int32 xOffset, int32 yOffset) const
{
// TODO: assumes drawing buffer is 32 bits (which it currently always is)
@@ -1450,27 +1450,10 @@ DrawingEngine::_CopyRect(bool isGraphicsMemory, uint8* src, uint32 width, uint32
uint8* dst = src + (ssize_t)yOffset * bytesPerRow + (ssize_t)xOffset * 4;
if (!needMemmove) {
if (!isGraphicsMemory) {
// NOTE: this (instead of the two pass copy below) might
// speed up QEMU -> ?!? (would depend on how it emulates
// the PCI bus...)
for (uint32 y = 0; y < height; y++) {
memcpy(dst, src, width * 4);
src += yIncrement;
dst += yIncrement;
}
} else {
uint8 tmpBuffer[width * 4];
for (uint32 y = 0; y < height; y++) {
// NOTE: read into temporary scanline buffer,
// NOTE: **don't read and write over the PCI bus
// at the same time**
memcpy(tmpBuffer, src, width * 4);
// write back temporary scanline buffer
memcpy(dst, tmpBuffer, width * 4);
src += yIncrement;
dst += yIncrement;
}
for (uint32 y = 0; y < height; y++) {
memcpy(dst, src, width * 4);
src += yIncrement;
dst += yIncrement;
}
} else {
for (uint32 y = 0; y < height; y++) {
src/servers/app/drawing/DrawingEngine.h
+1 -1
View File
@@ -200,7 +200,7 @@ public:
private:
friend class DrawTransaction;
void _CopyRect(bool isGraphicsMemory, uint8* bits,
void _CopyRect(uint8* bits,
uint32 width, uint32 height, uint32 bytesPerRow,
int32 xOffset, int32 yOffset) const;