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GPU/HW: Check for depth clears for lines

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Stenzek 2025-05-17 15:21:55 +10:00
parent 844869c0c1
commit d35cefb02a
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2 changed files with 33 additions and 12 deletions
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43
src/core/gpu_hw.cpp
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@ -169,6 +169,16 @@ ALWAYS_INLINE static u32 Truncate32To16(u32 color)
.rgba32();
}
/// Computes the clamped average Z for the given polygon Z values.
template<typename... Args>
ALWAYS_INLINE static float ComputePolygonAverageZ(Args... args)
{
static_assert(sizeof...(args) >= 2, "At least two arguments are required");
const float sum = (args + ...);
constexpr s32 count = static_cast<s32>(sizeof...(args));
return std::min(sum / static_cast<float>(count), 1.0f);
}
namespace {
class ShaderCompileProgressTracker
{
@ -2471,15 +2481,8 @@ void GPU_HW::SetBatchDepthBuffer(const GPUBackendDrawCommand* cmd, bool enabled)
m_batch.use_depth_buffer = enabled;
}
void GPU_HW::CheckForDepthClear(const GPUBackendDrawCommand* cmd, const BatchVertex* vertices, u32 num_vertices)
void GPU_HW::CheckForDepthClear(const GPUBackendDrawCommand* cmd, float average_z)
{
DebugAssert(num_vertices == 3 || num_vertices == 4);
float average_z;
if (num_vertices == 3)
average_z = std::min((vertices[0].w + vertices[1].w + vertices[2].w) / 3.0f, 1.0f);
else
average_z = std::min((vertices[0].w + vertices[1].w + vertices[2].w + vertices[3].w) / 4.0f, 1.0f);
if ((average_z - m_last_depth_z) >= g_gpu_settings.gpu_pgxp_depth_clear_threshold)
{
GL_INS_FMT("Clear depth buffer avg={} last={} threshold={}", average_z * static_cast<float>(GTE::MAX_Z),
@ -2562,12 +2565,25 @@ void GPU_HW::DrawPreciseLine(const GPUBackendDrawPreciseLineCommand* cmd)
for (u32 i = 0; i < num_vertices; i += 2)
{
float start_depth, end_depth;
if (use_depth)
{
start_depth = cmd->vertices[i].w;
end_depth = cmd->vertices[i + 1].w;
const float average_z = ComputePolygonAverageZ(start_depth, end_depth);
CheckForDepthClear(cmd, average_z);
}
else
{
start_depth = 1.0f;
end_depth = 1.0f;
}
const GSVector2 start_pos = GSVector2::load<true>(&cmd->vertices[i].x);
const u32 start_color = cmd->vertices[i].color;
const float start_depth = use_depth ? cmd->vertices[i].w : 1.0f;
const GSVector2 end_pos = GSVector2::load<true>(&cmd->vertices[i + 1].x);
const u32 end_color = cmd->vertices[i + 1].color;
const float end_depth = use_depth ? cmd->vertices[i + 1].w : 1.0f;
const GSVector4 bounds = GSVector4::xyxy(start_pos, end_pos);
const GSVector4i rect =
@ -2870,7 +2886,12 @@ void GPU_HW::DrawPrecisePolygon(const GPUBackendDrawPrecisePolygonCommand* cmd)
m_pgxp_depth_buffer && is_3d && (!cmd->transparency_enable || g_gpu_settings.gpu_pgxp_transparent_depth);
SetBatchDepthBuffer(cmd, use_depth);
if (use_depth)
CheckForDepthClear(cmd, vertices.data(), num_vertices);
{
const float average_z = (num_vertices == 4) ?
ComputePolygonAverageZ(vertices[0].w, vertices[1].w, vertices[2].w, vertices[3].w) :
ComputePolygonAverageZ(vertices[0].w, vertices[1].w, vertices[2].w);
CheckForDepthClear(cmd, average_z);
}
FinishPolygonDraw(cmd, vertices, num_vertices, true, is_3d, clamped_draw_rect_012, clamped_draw_rect_123);
}

2
src/core/gpu_hw.h
View File

@ -259,7 +259,7 @@ private:
/// Sets the depth test flag for PGXP depth buffering.
void SetBatchDepthBuffer(const GPUBackendDrawCommand* cmd, bool enabled);
void CheckForDepthClear(const GPUBackendDrawCommand* cmd, const BatchVertex* vertices, u32 num_vertices);
void CheckForDepthClear(const GPUBackendDrawCommand* cmd, float average_z);
void SetBatchSpriteMode(const GPUBackendDrawCommand* cmd, bool enabled);
void UpdateDownsamplingLevels();