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TextureConverter: Use gl_FragCoord instead of uv0

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This commit is contained in:
degasus
2013-11-25 15:01:18 +01:00
parent a289e0604f
commit bcb31b09d3
2 changed files with 16 additions and 25 deletions
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29
Source/Core/VideoBackends/OGL/Src/TextureConverter.cpp
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@ -41,17 +41,6 @@ static SHADER s_yuyvToRgbProgram;
// Not all slots are taken - but who cares.
const u32 NUM_ENCODING_PROGRAMS = 64;
static SHADER s_encodingPrograms[NUM_ENCODING_PROGRAMS];
static int s_encodingUniform_loc[NUM_ENCODING_PROGRAMS];
static const char *VProgram =
"VARYOUT vec2 uv0;\n"
"uniform vec4 copy_position;\n" // left, top, right, bottom
"void main()\n"
"{\n"
" vec2 rawpos = vec2(gl_VertexID&1, gl_VertexID&2);\n"
" gl_Position = vec4(rawpos*2.0-1.0, 0.0, 1.0);\n"
" uv0 = mix(copy_position.xy, copy_position.zw, rawpos);\n"
"}\n";
void CreatePrograms()
{
@ -158,8 +147,14 @@ SHADER &GetOrCreateEncodingShader(u32 format)
}
#endif
const char *VProgram =
"void main()\n"
"{\n"
" vec2 rawpos = vec2(gl_VertexID&1, gl_VertexID&2);\n"
" gl_Position = vec4(rawpos*2.0-1.0, 0.0, 1.0);\n"
"}\n";
ProgramShaderCache::CompileShader(s_encodingPrograms[format], VProgram, shader);
s_encodingUniform_loc[format] = glGetUniformLocation(s_encodingPrograms[format].glprogid, "copy_position");
}
return s_encodingPrograms[format];
}
@ -200,7 +195,7 @@ void Shutdown()
void EncodeToRamUsingShader(GLuint srcTexture, const TargetRectangle& sourceRc,
u8* destAddr, int dstWidth, int dstHeight, int readStride,
bool toTexture, bool linearFilter, int uniform_loc)
bool toTexture, bool linearFilter)
{
@ -230,8 +225,6 @@ void EncodeToRamUsingShader(GLuint srcTexture, const TargetRectangle& sourceRc,
glViewport(0, 0, (GLsizei)dstWidth, (GLsizei)dstHeight);
glUniform4f(uniform_loc, sourceRc.left, sourceRc.top, sourceRc.right, sourceRc.bottom);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
GL_REPORT_ERRORD();
@ -323,7 +316,7 @@ int EncodeToRamFromTexture(u32 address,GLuint source_texture, bool bFromZBuffer,
TexDecoder_GetBlockWidthInTexels(format);
EncodeToRamUsingShader(source_texture, scaledSource,
dest_ptr, expandedWidth / samples, expandedHeight, readStride,
true, bScaleByHalf > 0 && !bFromZBuffer, s_encodingUniform_loc[format]);
true, bScaleByHalf > 0 && !bFromZBuffer);
return size_in_bytes; // TODO: D3D11 is calculating this value differently!
}
@ -334,10 +327,12 @@ void EncodeToRamYUYV(GLuint srcTexture, const TargetRectangle& sourceRc, u8* des
s_rgbToYuyvProgram.Bind();
glUniform4f(s_rgbToYuyvUniform_loc, sourceRc.left, sourceRc.top, sourceRc.right, sourceRc.bottom);
// We enable linear filtering, because the gamecube does filtering in the vertical direction when
// yscale is enabled.
// Otherwise we get jaggies when a game uses yscaling (most PAL games)
EncodeToRamUsingShader(srcTexture, sourceRc, destAddr, dstWidth / 2, dstHeight, 0, false, true, s_rgbToYuyvUniform_loc);
EncodeToRamUsingShader(srcTexture, sourceRc, destAddr, dstWidth / 2, dstHeight, 0, false, true);
FramebufferManager::SetFramebuffer(0);
TextureCache::DisableStage(0);
g_renderer->RestoreAPIState();