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-rw-r--r--src/video_core/engines/shader_header.h55
1 files changed, 30 insertions, 25 deletions
diff --git a/src/video_core/engines/shader_header.h b/src/video_core/engines/shader_header.h
index bc80661d8..72e2a33d5 100644
--- a/src/video_core/engines/shader_header.h
+++ b/src/video_core/engines/shader_header.h
@@ -4,6 +4,9 @@
#pragma once
+#include <array>
+#include <optional>
+
#include "common/bit_field.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
@@ -16,7 +19,7 @@ enum class OutputTopology : u32 {
TriangleStrip = 7,
};
-enum class AttributeUse : u8 {
+enum class PixelImap : u8 {
Unused = 0,
Constant = 1,
Perspective = 2,
@@ -24,7 +27,7 @@ enum class AttributeUse : u8 {
};
// Documentation in:
-// http://download.nvidia.com/open-gpu-doc/Shader-Program-Header/1/Shader-Program-Header.html#ImapTexture
+// http://download.nvidia.com/open-gpu-doc/Shader-Program-Header/1/Shader-Program-Header.html
struct Header {
union {
BitField<0, 5, u32> sph_type;
@@ -59,8 +62,8 @@ struct Header {
union {
BitField<0, 12, u32> max_output_vertices;
BitField<12, 8, u32> store_req_start; // NOTE: not used by geometry shaders.
- BitField<24, 4, u32> reserved;
- BitField<12, 8, u32> store_req_end; // NOTE: not used by geometry shaders.
+ BitField<20, 4, u32> reserved;
+ BitField<24, 8, u32> store_req_end; // NOTE: not used by geometry shaders.
} common4{};
union {
@@ -93,17 +96,20 @@ struct Header {
struct {
INSERT_UNION_PADDING_BYTES(3); // ImapSystemValuesA
INSERT_UNION_PADDING_BYTES(1); // ImapSystemValuesB
+
union {
- BitField<0, 2, AttributeUse> x;
- BitField<2, 2, AttributeUse> y;
- BitField<4, 2, AttributeUse> w;
- BitField<6, 2, AttributeUse> z;
+ BitField<0, 2, PixelImap> x;
+ BitField<2, 2, PixelImap> y;
+ BitField<4, 2, PixelImap> z;
+ BitField<6, 2, PixelImap> w;
u8 raw;
} imap_generic_vector[32];
+
INSERT_UNION_PADDING_BYTES(2); // ImapColor
INSERT_UNION_PADDING_BYTES(2); // ImapSystemValuesC
INSERT_UNION_PADDING_BYTES(10); // ImapFixedFncTexture[10]
INSERT_UNION_PADDING_BYTES(2); // ImapReserved
+
struct {
u32 target;
union {
@@ -112,31 +118,30 @@ struct Header {
BitField<2, 30, u32> reserved;
};
} omap;
+
bool IsColorComponentOutputEnabled(u32 render_target, u32 component) const {
const u32 bit = render_target * 4 + component;
return omap.target & (1 << bit);
}
- AttributeUse GetAttributeIndexUse(u32 attribute, u32 index) const {
- return static_cast<AttributeUse>(
- (imap_generic_vector[attribute].raw >> (index * 2)) & 0x03);
- }
- AttributeUse GetAttributeUse(u32 attribute) const {
- AttributeUse result = AttributeUse::Unused;
- for (u32 i = 0; i < 4; i++) {
- const auto index = GetAttributeIndexUse(attribute, i);
- if (index == AttributeUse::Unused) {
- continue;
- }
- if (result == AttributeUse::Unused || result == index) {
- result = index;
+
+ PixelImap GetPixelImap(u32 attribute) const {
+ const auto get_index = [this, attribute](u32 index) {
+ return static_cast<PixelImap>(
+ (imap_generic_vector[attribute].raw >> (index * 2)) & 3);
+ };
+
+ std::optional<PixelImap> result;
+ for (u32 component = 0; component < 4; ++component) {
+ const PixelImap index = get_index(component);
+ if (index == PixelImap::Unused) {
continue;
}
- LOG_CRITICAL(HW_GPU, "Generic Attribute Conflict in Interpolation Mode");
- if (index == AttributeUse::Perspective) {
- result = index;
+ if (result && result != index) {
+ LOG_CRITICAL(HW_GPU, "Generic attribute conflict in interpolation mode");
}
+ result = index;
}
- return result;
+ return result.value_or(PixelImap::Unused);
}
} ps;