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GeometryShaderGen: Convert to EnumMap

This commit is contained in:
Pokechu22 2021-04-30 19:55:17 -07:00
parent f53dc6564f
commit 205ab23d80
1 changed files with 12 additions and 9 deletions
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21
Source/Core/VideoCommon/GeometryShaderGen.cpp
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@ -6,25 +6,29 @@
#include <cmath> #include <cmath>
#include "Common/CommonTypes.h" #include "Common/CommonTypes.h"
#include "Common/EnumMap.h"
#include "VideoCommon/DriverDetails.h" #include "VideoCommon/DriverDetails.h"
#include "VideoCommon/LightingShaderGen.h" #include "VideoCommon/LightingShaderGen.h"
#include "VideoCommon/VideoCommon.h" #include "VideoCommon/VideoCommon.h"
#include "VideoCommon/VideoConfig.h" #include "VideoCommon/VideoConfig.h"
#include "VideoCommon/XFMemory.h" #include "VideoCommon/XFMemory.h"
constexpr std::array<const char*, 4> primitives_ogl{ constexpr Common::EnumMap<const char*, PrimitiveType::TriangleStrip> primitives_ogl{
"points", "points",
"lines", "lines",
"triangles", "triangles",
"triangles", "triangles",
}; };
constexpr std::array<const char*, 4> primitives_d3d{ constexpr Common::EnumMap<const char*, PrimitiveType::TriangleStrip> primitives_d3d{
"point", "point",
"line", "line",
"triangle", "triangle",
"triangle", "triangle",
}; };
constexpr Common::EnumMap<u32, PrimitiveType::TriangleStrip> vertex_in_map{1u, 2u, 3u, 3u};
constexpr Common::EnumMap<u32, PrimitiveType::TriangleStrip> vertex_out_map{4u, 4u, 4u, 3u};
bool geometry_shader_uid_data::IsPassthrough() const bool geometry_shader_uid_data::IsPassthrough() const
{ {
const bool stereo = g_ActiveConfig.stereo_mode != StereoMode::Off; const bool stereo = g_ActiveConfig.stereo_mode != StereoMode::Off;
@ -61,9 +65,8 @@ ShaderCode GenerateGeometryShaderCode(APIType api_type, const ShaderHostConfig&
const bool ssaa = host_config.ssaa; const bool ssaa = host_config.ssaa;
const bool stereo = host_config.stereo; const bool stereo = host_config.stereo;
const auto primitive_type = static_cast<PrimitiveType>(uid_data->primitive_type); const auto primitive_type = static_cast<PrimitiveType>(uid_data->primitive_type);
const auto primitive_type_index = static_cast<unsigned>(uid_data->primitive_type); const u32 vertex_in = vertex_in_map[primitive_type];
const auto vertex_in = std::min(static_cast<unsigned>(primitive_type_index) + 1, 3u); u32 vertex_out = vertex_out_map[primitive_type];
u32 vertex_out = primitive_type == PrimitiveType::TriangleStrip ? 3 : 4;
if (wireframe) if (wireframe)
vertex_out++; vertex_out++;
@ -73,14 +76,14 @@ ShaderCode GenerateGeometryShaderCode(APIType api_type, const ShaderHostConfig&
// Insert layout parameters // Insert layout parameters
if (host_config.backend_gs_instancing) if (host_config.backend_gs_instancing)
{ {
out.Write("layout({}, invocations = {}) in;\n", primitives_ogl[primitive_type_index], out.Write("layout({}, invocations = {}) in;\n", primitives_ogl[primitive_type],
stereo ? 2 : 1); stereo ? 2 : 1);
out.Write("layout({}_strip, max_vertices = {}) out;\n", wireframe ? "line" : "triangle", out.Write("layout({}_strip, max_vertices = {}) out;\n", wireframe ? "line" : "triangle",
vertex_out); vertex_out);
} }
else else
{ {
out.Write("layout({}) in;\n", primitives_ogl[primitive_type_index]); out.Write("layout({}) in;\n", primitives_ogl[primitive_type]);
out.Write("layout({}_strip, max_vertices = {}) out;\n", wireframe ? "line" : "triangle", out.Write("layout({}_strip, max_vertices = {}) out;\n", wireframe ? "line" : "triangle",
stereo ? vertex_out * 2 : vertex_out); stereo ? vertex_out * 2 : vertex_out);
} }
@ -139,13 +142,13 @@ ShaderCode GenerateGeometryShaderCode(APIType api_type, const ShaderHostConfig&
out.Write("[maxvertexcount({})]\n[instance({})]\n", vertex_out, stereo ? 2 : 1); out.Write("[maxvertexcount({})]\n[instance({})]\n", vertex_out, stereo ? 2 : 1);
out.Write("void main({} VS_OUTPUT o[{}], inout {}Stream<VertexData> output, in uint " out.Write("void main({} VS_OUTPUT o[{}], inout {}Stream<VertexData> output, in uint "
"InstanceID : SV_GSInstanceID)\n{{\n", "InstanceID : SV_GSInstanceID)\n{{\n",
primitives_d3d[primitive_type_index], vertex_in, wireframe ? "Line" : "Triangle"); primitives_d3d[primitive_type], vertex_in, wireframe ? "Line" : "Triangle");
} }
else else
{ {
out.Write("[maxvertexcount({})]\n", stereo ? vertex_out * 2 : vertex_out); out.Write("[maxvertexcount({})]\n", stereo ? vertex_out * 2 : vertex_out);
out.Write("void main({} VS_OUTPUT o[{}], inout {}Stream<VertexData> output)\n{{\n", out.Write("void main({} VS_OUTPUT o[{}], inout {}Stream<VertexData> output)\n{{\n",
primitives_d3d[primitive_type_index], vertex_in, wireframe ? "Line" : "Triangle"); primitives_d3d[primitive_type], vertex_in, wireframe ? "Line" : "Triangle");
} }
out.Write("\tVertexData ps;\n"); out.Write("\tVertexData ps;\n");