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Merge pull request #16503 from unknownbrackets/softgpu-halfpos

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softgpu: Fix double rectangle drawing at halfpixel
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Henrik Rydgård authored and GitHub committed 2022-12-05 09:34:33 +01:00
2 parents 13e90f7086 07c276c32d
commit e44e9b651f
1 file changed
+4 -3
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GPU/Software/Rasterizer.cpp
+4 -3
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@@ -1116,7 +1116,7 @@ void DrawRectangle(const VertexData &v0, const VertexData &v1, const BinCoords &
std::string ztag = StringFromFormat("DisplayListRZ_%08x", state.listPC);
#endif
for (int64_t curY = minY; curY <= maxY; curY += SCREEN_SCALE_FACTOR * 2, rowST += sty) {
for (int64_t curY = minY; curY < maxY; curY += SCREEN_SCALE_FACTOR * 2, rowST += sty) {
DrawingCoords p = TransformUnit::ScreenToDrawing(minX, curY);
int scissorY2 = curY + SCREEN_SCALE_FACTOR > maxY ? -1 : 0;
@@ -1124,7 +1124,7 @@ void DrawRectangle(const VertexData &v0, const VertexData &v1, const BinCoords &
Vec4<int> scissor_step = Vec4<int>(0, -(SCREEN_SCALE_FACTOR * 2), 0, -(SCREEN_SCALE_FACTOR * 2));
Vec2f st = rowST;
for (int64_t curX = minX; curX <= maxX; curX += SCREEN_SCALE_FACTOR * 2,
for (int64_t curX = minX; curX < maxX; curX += SCREEN_SCALE_FACTOR * 2,
st += stx,
scissor_mask += scissor_step,
p.x = (p.x + 2) & 0x3FF) {
@@ -1292,7 +1292,8 @@ void ClearRectangle(const VertexData &v0, const VertexData &v1, const BinCoords
minY += SCREEN_SCALE_FACTOR;
const DrawingCoords pprime = TransformUnit::ScreenToDrawing(minX, minY);
const DrawingCoords pend = TransformUnit::ScreenToDrawing(maxX, maxY);
// Only include the end pixel when it's >= 0.5.
const DrawingCoords pend = TransformUnit::ScreenToDrawing(maxX - SCREEN_SCALE_FACTOR / 2, maxY - SCREEN_SCALE_FACTOR / 2);
auto &pixelID = state.pixelID;
auto &samplerID = state.samplerID;