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Merge pull request #3996 from ReinUsesLisp/front-faces 

fixed_pipeline_state,gl_rasterizer: Swap negative viewport checks for front faces
This commit is contained in:
bunnei 2020-06-01 14:04:35 -04:00 committed by GitHub
parent e68ee43a1a 606a62d4c7
commit 6c0b1a9ee2
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 21 additions and 7 deletions
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25
src/video_core/renderer_opengl/gl_rasterizer.cpp
View File

@ -1020,6 +1020,26 @@ void RasterizerOpenGL::SyncViewport() {
const auto& regs = gpu.regs;
const bool dirty_viewport = flags[Dirty::Viewports];
const bool dirty_clip_control = flags[Dirty::ClipControl];
if (dirty_clip_control || flags[Dirty::FrontFace]) {
flags[Dirty::FrontFace] = false;
GLenum mode = MaxwellToGL::FrontFace(regs.front_face);
if (regs.screen_y_control.triangle_rast_flip != 0 &&
regs.viewport_transform[0].scale_y < 0.0f) {
switch (mode) {
case GL_CW:
mode = GL_CCW;
break;
case GL_CCW:
mode = GL_CW;
break;
}
}
glFrontFace(mode);
}
if (dirty_viewport || flags[Dirty::ClipControl]) {
flags[Dirty::ClipControl] = false;
@ -1117,11 +1137,6 @@ void RasterizerOpenGL::SyncCullMode() {
glDisable(GL_CULL_FACE);
}
}
if (flags[Dirty::FrontFace]) {
flags[Dirty::FrontFace] = false;
glFrontFace(MaxwellToGL::FrontFace(regs.front_face));
}
}
void RasterizerOpenGL::SyncPrimitiveRestart() {

3
src/video_core/renderer_vulkan/fixed_pipeline_state.cpp
View File

@ -71,8 +71,7 @@ void FixedPipelineState::Rasterizer::Fill(const Maxwell& regs) noexcept {
const u32 topology_index = static_cast<u32>(regs.draw.topology.Value());
u32 packed_front_face = PackFrontFace(regs.front_face);
if (regs.screen_y_control.triangle_rast_flip != 0 &&
regs.viewport_transform[0].scale_y > 0.0f) {
if (regs.screen_y_control.triangle_rast_flip != 0) {
// Flip front face
packed_front_face = 1 - packed_front_face;
}