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[Vulkan] Alpha test

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This commit is contained in:
Triang3l
2022-06-30 22:20:51 +03:00
parent 6772c88141
commit f8b351138e
5 changed files with 182 additions and 1 deletions
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12
src/xenia/gpu/vulkan/vulkan_command_processor.cc
View File

@@ -3377,6 +3377,8 @@ void VulkanCommandProcessor::UpdateSystemConstantValues(
const RegisterFile& regs = *register_file_;
auto pa_cl_vte_cntl = regs.Get<reg::PA_CL_VTE_CNTL>();
float rb_alpha_ref = regs[XE_GPU_REG_RB_ALPHA_REF].f32;
auto rb_colorcontrol = regs.Get<reg::RB_COLORCONTROL>();
auto vgt_draw_initiator = regs.Get<reg::VGT_DRAW_INITIATOR>();
int32_t vgt_indx_offset = int32_t(regs[XE_GPU_REG_VGT_INDX_OFFSET].u32);
@@ -3416,6 +3418,12 @@ void VulkanCommandProcessor::UpdateSystemConstantValues(
if (draw_util::IsPrimitiveLine(regs)) {
flags |= SpirvShaderTranslator::kSysFlag_PrimitiveLine;
}
// Alpha test.
xenos::CompareFunction alpha_test_function =
rb_colorcontrol.alpha_test_enable ? rb_colorcontrol.alpha_func
: xenos::CompareFunction::kAlways;
flags |= uint32_t(alpha_test_function)
<< SpirvShaderTranslator::kSysFlag_AlphaPassIfLess_Shift;
// Gamma writing.
// TODO(Triang3l): Gamma as sRGB check.
for (uint32_t i = 0; i < xenos::kMaxColorRenderTargets; ++i) {
@@ -3492,6 +3500,10 @@ void VulkanCommandProcessor::UpdateSystemConstantValues(
}
}
// Alpha test.
dirty |= system_constants_.alpha_test_reference != rb_alpha_ref;
system_constants_.alpha_test_reference = rb_alpha_ref;
// Color exponent bias.
for (uint32_t i = 0; i < xenos::kMaxColorRenderTargets; ++i) {
reg::RB_COLOR_INFO color_info = color_infos[i];

11
src/xenia/gpu/vulkan/vulkan_pipeline_cache.cc
View File

@@ -155,6 +155,17 @@ VulkanPipelineCache::GetCurrentPixelShaderModification(
}
}
using DepthStencilMode =
SpirvShaderTranslator::Modification::DepthStencilMode;
if (shader.implicit_early_z_write_allowed() &&
(!shader.writes_color_target(0) ||
!draw_util::DoesCoverageDependOnAlpha(
regs.Get<reg::RB_COLORCONTROL>()))) {
modification.pixel.depth_stencil_mode = DepthStencilMode::kEarlyHint;
} else {
modification.pixel.depth_stencil_mode = DepthStencilMode::kNoModifiers;
}
return modification;
}