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gpu: implement PA_CL_UCP user clip planes through draw push constants

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This commit is contained in:
Mr. Big Britches
2026-10-20 07:00:55 +02:00
committed by nmzik
parent 18e6747dbf
commit feed075a9f
11 changed files with 109 additions and 45 deletions
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src/graphics/host_gpu/renderer/pipeline/pipelineCache.cpp
+12 -3
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@@ -780,10 +780,12 @@ PipelineCache::GraphicsPrograms PipelineCache::GetGraphicsPrograms(
}
}
}
if (context.GetClipControl().clip_disable) {
auto& last_stage = vertex_info[tess_active ? 2u : 0u];
const auto& clip_control = context.GetClipControl();
if (clip_control.clip_disable) {
const auto& viewport = context.GetScreenViewport().viewports[0];
const auto& limits = m_graphics.GetPhysicalDeviceProperties().limits;
auto& clip = vertex_info[tess_active ? 2u : 0u].clip_space;
auto& clip = last_stage.clip_space;
clip.scale[0] = viewport.xscale;
clip.scale[1] = viewport.yscale;
clip.offset[0] = viewport.xoffset;
@@ -793,9 +795,16 @@ PipelineCache::GraphicsPrograms PipelineCache::GetGraphicsPrograms(
clip.half_extent[1] =
static_cast<float>(std::min(limits.maxViewportDimensions[1], 16384u)) * 0.5f;
clip.enabled = true;
} else if (clip_control.user_clip_planes != 0) {
// CLIP_DISABLE also disables user planes. How they combine with shader clip and cull
// distances is unverified; draw push constants only reach VS/mesh and PS, and the
// generated RECTLIST stages do not forward clip distances.
EXIT_NOT_IMPLEMENTED((last_stage.pa_cl_vs_out_cntl & 0xffffu) != 0 || tess_active ||
Prospero::IsRectList(user_config.GetPrimType()));
last_stage.user_clip_planes = clip_control.user_clip_planes;
}
uint32_t push_data_cursor = ShaderRecompiler::IR::PushData::GraphicsDrawDwords(
mesh_active, object_primitive_id);
mesh_active, object_primitive_id, last_stage.user_clip_planes);
GraphicsPrograms result;
if (pixel_active) {
result.pixel = m_program_cache->Get(pixel_params, pixel_info, push_data_cursor);