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path: root/Source/Core/VideoCommon/GeometryShaderGen.cpp
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Diffstat (limited to 'Source/Core/VideoCommon/GeometryShaderGen.cpp')
-rw-r--r--Source/Core/VideoCommon/GeometryShaderGen.cpp135
1 files changed, 70 insertions, 65 deletions
diff --git a/Source/Core/VideoCommon/GeometryShaderGen.cpp b/Source/Core/VideoCommon/GeometryShaderGen.cpp
index 5695e9c256..bb201ddb0f 100644
--- a/Source/Core/VideoCommon/GeometryShaderGen.cpp
+++ b/Source/Core/VideoCommon/GeometryShaderGen.cpp
@@ -18,10 +18,12 @@ static const char* primitives_ogl[] = {"points", "lines", "triangles"};
static const char* primitives_d3d[] = {"point", "line", "triangle"};
-template <class T>
-static void EmitVertex(T& out, const char* vertex, APIType ApiType, bool first_vertex = false);
-template <class T>
-static void EndPrimitive(T& out, APIType ApiType);
+bool geometry_shader_uid_data::IsPassthrough() const
+{
+ const bool stereo = g_ActiveConfig.iStereoMode > 0;
+ const bool wireframe = g_ActiveConfig.bWireFrame;
+ return primitive_type == PRIMITIVE_TRIANGLES && !stereo && !wireframe;
+}
GeometryShaderUid GetGeometryShaderUid(u32 primitive_type)
{
@@ -30,48 +32,51 @@ GeometryShaderUid GetGeometryShaderUid(u32 primitive_type)
memset(uid_data, 0, sizeof(geometry_shader_uid_data));
uid_data->primitive_type = primitive_type;
- uid_data->wireframe = g_ActiveConfig.bWireFrame;
- uid_data->msaa = g_ActiveConfig.iMultisamples > 1;
- uid_data->ssaa = g_ActiveConfig.iMultisamples > 1 && g_ActiveConfig.bSSAA;
- uid_data->stereo = g_ActiveConfig.iStereoMode > 0;
uid_data->numTexGens = xfmem.numTexGen.numTexGens;
- uid_data->pixel_lighting = g_ActiveConfig.bEnablePixelLighting;
return out;
}
-static void EmitVertex(ShaderCode& out, const geometry_shader_uid_data* uid_data,
- const char* vertex, APIType ApiType, bool first_vertex = false);
-static void EndPrimitive(ShaderCode& out, const geometry_shader_uid_data* uid_data,
- APIType ApiType);
+static void EmitVertex(ShaderCode& out, const ShaderHostConfig& host_config,
+ const geometry_shader_uid_data* uid_data, const char* vertex,
+ APIType ApiType, bool wireframe, bool pixel_lighting,
+ bool first_vertex = false);
+static void EndPrimitive(ShaderCode& out, const ShaderHostConfig& host_config,
+ const geometry_shader_uid_data* uid_data, APIType ApiType, bool wireframe,
+ bool pixel_lighting);
-ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid_data* uid_data)
+ShaderCode GenerateGeometryShaderCode(APIType ApiType, const ShaderHostConfig& host_config,
+ const geometry_shader_uid_data* uid_data)
{
ShaderCode out;
// Non-uid template parameters will write to the dummy data (=> gets optimized out)
+ const bool wireframe = host_config.wireframe;
+ const bool pixel_lighting = g_ActiveConfig.bEnablePixelLighting;
+ const bool msaa = host_config.msaa;
+ const bool ssaa = host_config.ssaa;
+ const bool stereo = host_config.stereo;
const unsigned int vertex_in = uid_data->primitive_type + 1;
unsigned int vertex_out = uid_data->primitive_type == PRIMITIVE_TRIANGLES ? 3 : 4;
- if (uid_data->wireframe)
+ if (wireframe)
vertex_out++;
if (ApiType == APIType::OpenGL || ApiType == APIType::Vulkan)
{
// Insert layout parameters
- if (g_ActiveConfig.backend_info.bSupportsGSInstancing)
+ if (host_config.backend_gs_instancing)
{
out.Write("layout(%s, invocations = %d) in;\n", primitives_ogl[uid_data->primitive_type],
- uid_data->stereo ? 2 : 1);
- out.Write("layout(%s_strip, max_vertices = %d) out;\n",
- uid_data->wireframe ? "line" : "triangle", vertex_out);
+ stereo ? 2 : 1);
+ out.Write("layout(%s_strip, max_vertices = %d) out;\n", wireframe ? "line" : "triangle",
+ vertex_out);
}
else
{
out.Write("layout(%s) in;\n", primitives_ogl[uid_data->primitive_type]);
- out.Write("layout(%s_strip, max_vertices = %d) out;\n",
- uid_data->wireframe ? "line" : "triangle",
- uid_data->stereo ? vertex_out * 2 : vertex_out);
+ out.Write("layout(%s_strip, max_vertices = %d) out;\n", wireframe ? "line" : "triangle",
+ stereo ? vertex_out * 2 : vertex_out);
}
}
@@ -89,27 +94,24 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
"};\n");
out.Write("struct VS_OUTPUT {\n");
- GenerateVSOutputMembers<ShaderCode>(out, ApiType, uid_data->numTexGens, uid_data->pixel_lighting,
- "");
+ GenerateVSOutputMembers<ShaderCode>(out, ApiType, uid_data->numTexGens, pixel_lighting, "");
out.Write("};\n");
if (ApiType == APIType::OpenGL || ApiType == APIType::Vulkan)
{
- if (g_ActiveConfig.backend_info.bSupportsGSInstancing)
+ if (host_config.backend_gs_instancing)
out.Write("#define InstanceID gl_InvocationID\n");
out.Write("VARYING_LOCATION(0) in VertexData {\n");
- GenerateVSOutputMembers<ShaderCode>(
- out, ApiType, uid_data->numTexGens, uid_data->pixel_lighting,
- GetInterpolationQualifier(uid_data->msaa, uid_data->ssaa, true, true));
+ GenerateVSOutputMembers<ShaderCode>(out, ApiType, uid_data->numTexGens, pixel_lighting,
+ GetInterpolationQualifier(msaa, ssaa, true, true));
out.Write("} vs[%d];\n", vertex_in);
out.Write("VARYING_LOCATION(0) out VertexData {\n");
- GenerateVSOutputMembers<ShaderCode>(
- out, ApiType, uid_data->numTexGens, uid_data->pixel_lighting,
- GetInterpolationQualifier(uid_data->msaa, uid_data->ssaa, true, false));
+ GenerateVSOutputMembers<ShaderCode>(out, ApiType, uid_data->numTexGens, pixel_lighting,
+ GetInterpolationQualifier(msaa, ssaa, true, false));
- if (uid_data->stereo)
+ if (stereo)
out.Write("\tflat int layer;\n");
out.Write("} ps;\n");
@@ -121,25 +123,25 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
out.Write("struct VertexData {\n");
out.Write("\tVS_OUTPUT o;\n");
- if (uid_data->stereo)
+ if (stereo)
out.Write("\tuint layer : SV_RenderTargetArrayIndex;\n");
out.Write("};\n");
- if (g_ActiveConfig.backend_info.bSupportsGSInstancing)
+ if (host_config.backend_gs_instancing)
{
- out.Write("[maxvertexcount(%d)]\n[instance(%d)]\n", vertex_out, uid_data->stereo ? 2 : 1);
+ out.Write("[maxvertexcount(%d)]\n[instance(%d)]\n", vertex_out, stereo ? 2 : 1);
out.Write("void main(%s VS_OUTPUT o[%d], inout %sStream<VertexData> output, in uint "
"InstanceID : SV_GSInstanceID)\n{\n",
primitives_d3d[uid_data->primitive_type], vertex_in,
- uid_data->wireframe ? "Line" : "Triangle");
+ wireframe ? "Line" : "Triangle");
}
else
{
- out.Write("[maxvertexcount(%d)]\n", uid_data->stereo ? vertex_out * 2 : vertex_out);
+ out.Write("[maxvertexcount(%d)]\n", stereo ? vertex_out * 2 : vertex_out);
out.Write("void main(%s VS_OUTPUT o[%d], inout %sStream<VertexData> output)\n{\n",
primitives_d3d[uid_data->primitive_type], vertex_in,
- uid_data->wireframe ? "Line" : "Triangle");
+ wireframe ? "Line" : "Triangle");
}
out.Write("\tVertexData ps;\n");
@@ -150,8 +152,8 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
if (ApiType == APIType::OpenGL || ApiType == APIType::Vulkan)
{
out.Write("\tVS_OUTPUT start, end;\n");
- AssignVSOutputMembers(out, "start", "vs[0]", uid_data->numTexGens, uid_data->pixel_lighting);
- AssignVSOutputMembers(out, "end", "vs[1]", uid_data->numTexGens, uid_data->pixel_lighting);
+ AssignVSOutputMembers(out, "start", "vs[0]", uid_data->numTexGens, pixel_lighting);
+ AssignVSOutputMembers(out, "end", "vs[1]", uid_data->numTexGens, pixel_lighting);
}
else
{
@@ -181,7 +183,7 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
if (ApiType == APIType::OpenGL || ApiType == APIType::Vulkan)
{
out.Write("\tVS_OUTPUT center;\n");
- AssignVSOutputMembers(out, "center", "vs[0]", uid_data->numTexGens, uid_data->pixel_lighting);
+ AssignVSOutputMembers(out, "center", "vs[0]", uid_data->numTexGens, pixel_lighting);
}
else
{
@@ -194,17 +196,17 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
".x, -" I_LINEPTPARAMS ".w / " I_LINEPTPARAMS ".y) * center.pos.w;\n");
}
- if (uid_data->stereo)
+ if (stereo)
{
// If the GPU supports invocation we don't need a for loop and can simply use the
// invocation identifier to determine which layer we're rendering.
- if (g_ActiveConfig.backend_info.bSupportsGSInstancing)
+ if (host_config.backend_gs_instancing)
out.Write("\tint eye = InstanceID;\n");
else
out.Write("\tfor (int eye = 0; eye < 2; ++eye) {\n");
}
- if (uid_data->wireframe)
+ if (wireframe)
out.Write("\tVS_OUTPUT first;\n");
out.Write("\tfor (int i = 0; i < %d; ++i) {\n", vertex_in);
@@ -212,9 +214,9 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
if (ApiType == APIType::OpenGL || ApiType == APIType::Vulkan)
{
out.Write("\tVS_OUTPUT f;\n");
- AssignVSOutputMembers(out, "f", "vs[i]", uid_data->numTexGens, uid_data->pixel_lighting);
+ AssignVSOutputMembers(out, "f", "vs[i]", uid_data->numTexGens, pixel_lighting);
- if (g_ActiveConfig.backend_info.bSupportsDepthClamp &&
+ if (host_config.backend_depth_clamp &&
DriverDetails::HasBug(DriverDetails::BUG_BROKEN_CLIP_DISTANCE))
{
// On certain GPUs we have to consume the clip distance from the vertex shader
@@ -228,7 +230,7 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
out.Write("\tVS_OUTPUT f = o[i];\n");
}
- if (uid_data->stereo)
+ if (stereo)
{
// Select the output layer
out.Write("\tps.layer = eye;\n");
@@ -264,8 +266,8 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
}
out.Write("\t}\n");
- EmitVertex(out, uid_data, "l", ApiType, true);
- EmitVertex(out, uid_data, "r", ApiType);
+ EmitVertex(out, host_config, uid_data, "l", ApiType, wireframe, pixel_lighting, true);
+ EmitVertex(out, host_config, uid_data, "r", ApiType, wireframe, pixel_lighting);
}
else if (uid_data->primitive_type == PRIMITIVE_POINTS)
{
@@ -293,21 +295,21 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
}
out.Write("\t}\n");
- EmitVertex(out, uid_data, "ll", ApiType, true);
- EmitVertex(out, uid_data, "lr", ApiType);
- EmitVertex(out, uid_data, "ul", ApiType);
- EmitVertex(out, uid_data, "ur", ApiType);
+ EmitVertex(out, host_config, uid_data, "ll", ApiType, wireframe, pixel_lighting, true);
+ EmitVertex(out, host_config, uid_data, "lr", ApiType, wireframe, pixel_lighting);
+ EmitVertex(out, host_config, uid_data, "ul", ApiType, wireframe, pixel_lighting);
+ EmitVertex(out, host_config, uid_data, "ur", ApiType, wireframe, pixel_lighting);
}
else
{
- EmitVertex(out, uid_data, "f", ApiType, true);
+ EmitVertex(out, host_config, uid_data, "f", ApiType, wireframe, pixel_lighting, true);
}
out.Write("\t}\n");
- EndPrimitive(out, uid_data, ApiType);
+ EndPrimitive(out, host_config, uid_data, ApiType, wireframe, pixel_lighting);
- if (uid_data->stereo && !g_ActiveConfig.backend_info.bSupportsGSInstancing)
+ if (stereo && !host_config.backend_gs_instancing)
out.Write("\t}\n");
out.Write("}\n");
@@ -315,28 +317,29 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
return out;
}
-static void EmitVertex(ShaderCode& out, const geometry_shader_uid_data* uid_data,
- const char* vertex, APIType ApiType, bool first_vertex)
+static void EmitVertex(ShaderCode& out, const ShaderHostConfig& host_config,
+ const geometry_shader_uid_data* uid_data, const char* vertex,
+ APIType ApiType, bool wireframe, bool pixel_lighting, bool first_vertex)
{
- if (uid_data->wireframe && first_vertex)
+ if (wireframe && first_vertex)
out.Write("\tif (i == 0) first = %s;\n", vertex);
if (ApiType == APIType::OpenGL)
{
out.Write("\tgl_Position = %s.pos;\n", vertex);
- if (g_ActiveConfig.backend_info.bSupportsDepthClamp)
+ if (host_config.backend_depth_clamp)
{
out.Write("\tgl_ClipDistance[0] = %s.clipDist0;\n", vertex);
out.Write("\tgl_ClipDistance[1] = %s.clipDist1;\n", vertex);
}
- AssignVSOutputMembers(out, "ps", vertex, uid_data->numTexGens, uid_data->pixel_lighting);
+ AssignVSOutputMembers(out, "ps", vertex, uid_data->numTexGens, pixel_lighting);
}
else if (ApiType == APIType::Vulkan)
{
// Vulkan NDC space has Y pointing down (right-handed NDC space).
out.Write("\tgl_Position = %s.pos;\n", vertex);
out.Write("\tgl_Position.y = -gl_Position.y;\n");
- AssignVSOutputMembers(out, "ps", vertex, uid_data->numTexGens, uid_data->pixel_lighting);
+ AssignVSOutputMembers(out, "ps", vertex, uid_data->numTexGens, pixel_lighting);
}
else
{
@@ -349,10 +352,12 @@ static void EmitVertex(ShaderCode& out, const geometry_shader_uid_data* uid_data
out.Write("\toutput.Append(ps);\n");
}
-static void EndPrimitive(ShaderCode& out, const geometry_shader_uid_data* uid_data, APIType ApiType)
+static void EndPrimitive(ShaderCode& out, const ShaderHostConfig& host_config,
+ const geometry_shader_uid_data* uid_data, APIType ApiType, bool wireframe,
+ bool pixel_lighting)
{
- if (uid_data->wireframe)
- EmitVertex(out, uid_data, "first", ApiType);
+ if (wireframe)
+ EmitVertex(out, host_config, uid_data, "first", ApiType, wireframe, pixel_lighting);
if (ApiType == APIType::OpenGL || ApiType == APIType::Vulkan)
out.Write("\tEndPrimitive();\n");