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[Vulkan] 32-bit index fetch without fullDrawIndexUint32

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Triang3l
2022-07-25 16:53:12 +03:00
parent 37579d3bf0
commit 77e85ecaa4
6 changed files with 170 additions and 22 deletions
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30
src/xenia/gpu/spirv_shader_translator.h
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@@ -83,6 +83,9 @@ class SpirvShaderTranslator : public ShaderTranslator {
};
enum : uint32_t {
kSysFlag_VertexIndexLoad_Shift,
kSysFlag_ComputeOrPrimitiveVertexIndexLoad_Shift,
kSysFlag_ComputeOrPrimitiveVertexIndexLoad32Bit_Shift,
kSysFlag_XYDividedByW_Shift,
kSysFlag_ZDividedByW_Shift,
kSysFlag_WNotReciprocal_Shift,
@@ -98,6 +101,22 @@ class SpirvShaderTranslator : public ShaderTranslator {
kSysFlag_Count,
// For HostVertexShaderType kVertex, if fullDrawIndexUint32 is not
// supported (ignored otherwise), whether to fetch the index manually
// (32-bit only - 16-bit indices are always fetched via the Vulkan index
// buffer).
kSysFlag_VertexIndexLoad = 1u << kSysFlag_VertexIndexLoad_Shift,
// For HostVertexShaderTypes kMemexportCompute, kPointListAsTriangleStrip,
// kRectangleListAsTriangleStrip, whether the vertex index needs to be
// loaded from the index buffer (rather than using autogenerated indices),
// and whether it's 32-bit. This is separate from kSysFlag_VertexIndexLoad
// because the same system constants may be used for the memexporting
// compute shader and the vertex shader for the same draw, but
// kSysFlag_VertexIndexLoad may be not needed.
kSysFlag_ComputeOrPrimitiveVertexIndexLoad =
1u << kSysFlag_ComputeOrPrimitiveVertexIndexLoad_Shift,
kSysFlag_ComputeOrPrimitiveVertexIndexLoad32Bit =
1u << kSysFlag_ComputeOrPrimitiveVertexIndexLoad32Bit_Shift,
kSysFlag_XYDividedByW = 1u << kSysFlag_XYDividedByW_Shift,
kSysFlag_ZDividedByW = 1u << kSysFlag_ZDividedByW_Shift,
kSysFlag_WNotReciprocal = 1u << kSysFlag_WNotReciprocal_Shift,
@@ -116,11 +135,14 @@ class SpirvShaderTranslator : public ShaderTranslator {
// IF SYSTEM CONSTANTS ARE CHANGED OR ADDED, THE FOLLOWING MUST BE UPDATED:
// - SystemConstantIndex enum.
// - Structure members in BeginTranslation.
//
// Using the std140 layout - vec2 must be aligned to 8 bytes, vec3 and vec4 to
// 16 bytes.
struct SystemConstants {
uint32_t flags;
uint32_t vertex_index_load_address;
xenos::Endian vertex_index_endian;
int32_t vertex_base_index;
uint32_t padding_vertex_base_index;
float ndc_scale[3];
uint32_t padding_ndc_scale;
@@ -216,6 +238,7 @@ class SpirvShaderTranslator : public ShaderTranslator {
uint32_t max_storage_buffer_range;
bool clip_distance;
bool cull_distance;
bool full_draw_index_uint32;
bool image_view_format_swizzle;
bool signed_zero_inf_nan_preserve_float32;
bool denorm_flush_to_zero_float32;
@@ -576,8 +599,9 @@ class SpirvShaderTranslator : public ShaderTranslator {
enum SystemConstantIndex : unsigned int {
kSystemConstantFlags,
kSystemConstantIndexVertexIndexEndian,
kSystemConstantIndexVertexBaseIndex,
kSystemConstantVertexIndexLoadAddress,
kSystemConstantVertexIndexEndian,
kSystemConstantVertexBaseIndex,
kSystemConstantNdcScale,
kSystemConstantNdcOffset,
kSystemConstantTextureSwizzledSigns,