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[vulkan] Point list rendering improvements

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Implement register and vertex-shader-written point size. Fix point size
computation in geometry shader (convert pixel size to NDC scale using
viewport size). Fix point sprite coordinate generation.
This commit is contained in:
Dan Weatherford
2016-11-02 23:48:21 -05:00
parent c1db89b4dd
commit 6f6e638f2f
14 changed files with 1501 additions and 1296 deletions
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12
src/xenia/gpu/spirv_shader_translator.h
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@@ -29,9 +29,12 @@ namespace gpu {
// supported size).
struct SpirvPushConstants {
// Accessible to vertex shader only:
float window_scale[4]; // sx,sy, ?, ?
float window_scale[4]; // scale x/y, viewport width/height (pixels)
float vtx_fmt[4];
// Accessible to geometry shader only:
float point_size[4]; // psx, psy, unused, unused
// Accessible to fragment shader only:
float alpha_test[4]; // alpha test enable, func, ref, ?
uint32_t ps_param_gen;
@@ -40,8 +43,11 @@ static_assert(sizeof(SpirvPushConstants) <= 128,
"Push constants must fit <= 128b");
constexpr uint32_t kSpirvPushConstantVertexRangeOffset = 0;
constexpr uint32_t kSpirvPushConstantVertexRangeSize = (sizeof(float) * 4) * 2;
constexpr uint32_t kSpirvPushConstantGeometryRangeOffset =
kSpirvPushConstantVertexRangeOffset + kSpirvPushConstantVertexRangeSize;
constexpr uint32_t kSpirvPushConstantGeometryRangeSize = (sizeof(float) * 4);
constexpr uint32_t kSpirvPushConstantFragmentRangeOffset =
kSpirvPushConstantVertexRangeSize;
kSpirvPushConstantGeometryRangeOffset + kSpirvPushConstantGeometryRangeSize;
constexpr uint32_t kSpirvPushConstantFragmentRangeSize =
(sizeof(float) * 4) + sizeof(uint32_t);
constexpr uint32_t kSpirvPushConstantsSize = sizeof(SpirvPushConstants);
@@ -145,6 +151,8 @@ class SpirvShaderTranslator : public ShaderTranslator {
spv::Id pos_ = 0;
spv::Id push_consts_ = 0;
spv::Id interpolators_ = 0;
spv::Id point_size_ = 0;
spv::Id point_coord_ = 0;
spv::Id vertex_idx_ = 0;
spv::Id frag_outputs_ = 0, frag_depth_ = 0;
spv::Id samplers_ = 0;