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Merge pull request #1716 from Armada651/geom-wireframe

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VideoCommon: Handle wireframe mode in the geometry shader.
This commit is contained in:
Dolphin Bot
2014-12-20 12:22:40 +01:00
parent 6a785af280 531b3941ff
commit a560d8f150
8 changed files with 39 additions and 33 deletions
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54
Source/Core/VideoCommon/GeometryShaderGen.cpp
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@ -7,7 +7,6 @@
#include "VideoCommon/BPMemory.h"
#include "VideoCommon/GeometryShaderGen.h"
#include "VideoCommon/LightingShaderGen.h"
#include "VideoCommon/VertexManagerBase.h"
#include "VideoCommon/VertexShaderGen.h"
#include "VideoCommon/VideoConfig.h"
@ -27,7 +26,8 @@ static const char* primitives_d3d[] =
"triangle"
};
template<class T> static inline void EmitVertex(T& out, const char* vertex, API_TYPE ApiType);
template<class T> static inline void EmitVertex(T& out, const char* vertex, API_TYPE ApiType, bool first_vertex = false);
template<class T> static inline void EndPrimitive(T& out, API_TYPE ApiType);
template<class T>
static inline void GenerateGeometryShader(T& out, u32 primitive_type, API_TYPE ApiType)
@ -46,7 +46,11 @@ static inline void GenerateGeometryShader(T& out, u32 primitive_type, API_TYPE A
uid_data->primitive_type = primitive_type;
const unsigned int vertex_in = primitive_type + 1;
const unsigned int vertex_out = primitive_type == PRIMITIVE_TRIANGLES ? 3 : 4;
unsigned int vertex_out = primitive_type == PRIMITIVE_TRIANGLES ? 3 : 4;
uid_data->wireframe = g_ActiveConfig.bWireFrame;
if (g_ActiveConfig.bWireFrame)
vertex_out++;
uid_data->stereo = g_ActiveConfig.iStereoMode > 0;
if (ApiType == API_OPENGL)
@ -55,12 +59,12 @@ static inline void GenerateGeometryShader(T& out, u32 primitive_type, API_TYPE A
if (g_ActiveConfig.backend_info.bSupportsGSInstancing)
{
out.Write("layout(%s, invocations = %d) in;\n", primitives_ogl[primitive_type], g_ActiveConfig.iStereoMode > 0 ? 2 : 1);
out.Write("layout(triangle_strip, max_vertices = %d) out;\n", vertex_out);
out.Write("layout(%s_strip, max_vertices = %d) out;\n", g_ActiveConfig.bWireFrame ? "line" : "triangle", vertex_out);
}
else
{
out.Write("layout(%s) in;\n", primitives_ogl[primitive_type]);
out.Write("layout(triangle_strip, max_vertices = %d) out;\n", g_ActiveConfig.iStereoMode > 0 ? vertex_out * 2 : vertex_out);
out.Write("layout(%s_strip, max_vertices = %d) out;\n", g_ActiveConfig.bWireFrame ? "line" : "triangle", g_ActiveConfig.iStereoMode > 0 ? vertex_out * 2 : vertex_out);
}
}
@ -114,12 +118,12 @@ static inline void GenerateGeometryShader(T& out, u32 primitive_type, API_TYPE A
if (g_ActiveConfig.backend_info.bSupportsGSInstancing)
{
out.Write("[maxvertexcount(%d)]\n[instance(%d)]\n", vertex_out, g_ActiveConfig.iStereoMode > 0 ? 2 : 1);
out.Write("void main(%s VS_OUTPUT o[%d], inout TriangleStream<VertexData> output, in uint InstanceID : SV_GSInstanceID)\n{\n", primitives_d3d[primitive_type], vertex_in);
out.Write("void main(%s VS_OUTPUT o[%d], inout %sStream<VertexData> output, in uint InstanceID : SV_GSInstanceID)\n{\n", primitives_d3d[primitive_type], vertex_in, g_ActiveConfig.bWireFrame ? "Line" : "Triangle");
}
else
{
out.Write("[maxvertexcount(%d)]\n", g_ActiveConfig.iStereoMode > 0 ? vertex_out * 2 : vertex_out);
out.Write("void main(%s VS_OUTPUT o[%d], inout TriangleStream<VertexData> output)\n{\n", primitives_d3d[primitive_type], vertex_in);
out.Write("void main(%s VS_OUTPUT o[%d], inout %sStream<VertexData> output)\n{\n", primitives_d3d[primitive_type], vertex_in, g_ActiveConfig.bWireFrame ? "Line" : "Triangle");
}
out.Write("\tVertexData ps;\n");
@ -178,6 +182,9 @@ static inline void GenerateGeometryShader(T& out, u32 primitive_type, API_TYPE A
out.Write("\tfor (int eye = 0; eye < 2; ++eye) {\n");
}
if (g_ActiveConfig.bWireFrame)
out.Write("\tVS_OUTPUT first;\n");
out.Write("\tfor (int i = 0; i < %d; ++i) {\n", vertex_in);
if (ApiType == API_OPENGL)
@ -221,7 +228,7 @@ static inline void GenerateGeometryShader(T& out, u32 primitive_type, API_TYPE A
}
out.Write("\t}\n");
EmitVertex<T>(out, "l", ApiType);
EmitVertex<T>(out, "l", ApiType, true);
EmitVertex<T>(out, "r", ApiType);
}
else if (primitive_type == PRIMITIVE_POINTS)
@ -249,22 +256,19 @@ static inline void GenerateGeometryShader(T& out, u32 primitive_type, API_TYPE A
}
out.Write("\t}\n");
EmitVertex<T>(out, "ll", ApiType);
EmitVertex<T>(out, "ll", ApiType, true);
EmitVertex<T>(out, "lr", ApiType);
EmitVertex<T>(out, "ul", ApiType);
EmitVertex<T>(out, "ur", ApiType);
}
else
{
EmitVertex<T>(out, "f", ApiType);
EmitVertex<T>(out, "f", ApiType, true);
}
out.Write("\t}\n");
if (ApiType == API_OPENGL)
out.Write("\tEndPrimitive();\n");
else
out.Write("\toutput.RestartStrip();\n");
EndPrimitive<T>(out, ApiType);
if (g_ActiveConfig.iStereoMode > 0 && !g_ActiveConfig.backend_info.bSupportsGSInstancing)
out.Write("\t}\n");
@ -279,8 +283,11 @@ static inline void GenerateGeometryShader(T& out, u32 primitive_type, API_TYPE A
}
template<class T>
static inline void EmitVertex(T& out, const char* vertex, API_TYPE ApiType)
static inline void EmitVertex(T& out, const char* vertex, API_TYPE ApiType, bool first_vertex)
{
if (g_ActiveConfig.bWireFrame && first_vertex)
out.Write("\tif (i == 0) first = %s;\n", vertex);
if (ApiType == API_OPENGL)
out.Write("\tgl_Position = %s.pos;\n", vertex);
@ -291,6 +298,17 @@ static inline void EmitVertex(T& out, const char* vertex, API_TYPE ApiType)
else
out.Write("\toutput.Append(ps);\n");
}
template<class T>
static inline void EndPrimitive(T& out, API_TYPE ApiType)
{
if (g_ActiveConfig.bWireFrame)
EmitVertex<T>(out, "first", ApiType);
if (ApiType == API_OPENGL)
out.Write("\tEndPrimitive();\n");
else
out.Write("\toutput.RestartStrip();\n");
}
void GetGeometryShaderUid(GeometryShaderUid& object, u32 primitive_type, API_TYPE ApiType)
{
@ -301,9 +319,3 @@ void GenerateGeometryShaderCode(ShaderCode& object, u32 primitive_type, API_TYPE
{
GenerateGeometryShader<ShaderCode>(object, primitive_type, ApiType);
}
bool IsPassthroughGeometryShader(GeometryShaderUid& object)
{
geometry_shader_uid_data* uid_data = object.GetUidData<geometry_shader_uid_data>();
return uid_data->primitive_type == PRIMITIVE_TRIANGLES && !uid_data->stereo;
}