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Implement EFB copy filter and gamma in hardware backends

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Also makes y_scale a dynamic parameter for EFB copies, as it doesn't
make sense to keep it as part of the uid, otherwise we're generating
redundant shaders.
This commit is contained in:
Stenzek
2018-04-29 18:52:30 +10:00
parent a192a3bb30
commit 9e798eec94
41 changed files with 526 additions and 236 deletions
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19
Source/Core/VideoBackends/OGL/TextureConverter.cpp
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@ -39,6 +39,9 @@ struct EncodingProgram
SHADER program;
GLint copy_position_uniform;
GLint y_scale_uniform;
GLint gamma_rcp_uniform;
GLint clamp_tb_uniform;
GLint filter_coefficients_uniform;
};
std::map<EFBCopyParams, EncodingProgram> s_encoding_programs;
@ -81,6 +84,10 @@ static EncodingProgram& GetOrCreateEncodingShader(const EFBCopyParams& params)
program.copy_position_uniform = glGetUniformLocation(program.program.glprogid, "position");
program.y_scale_uniform = glGetUniformLocation(program.program.glprogid, "y_scale");
program.gamma_rcp_uniform = glGetUniformLocation(program.program.glprogid, "gamma_rcp");
program.clamp_tb_uniform = glGetUniformLocation(program.program.glprogid, "clamp_tb");
program.filter_coefficients_uniform =
glGetUniformLocation(program.program.glprogid, "filter_coefficients");
return s_encoding_programs.emplace(params, program).first->second;
}
@ -137,7 +144,9 @@ static void EncodeToRamUsingShader(GLuint srcTexture, u8* destAddr, u32 dst_line
void EncodeToRamFromTexture(u8* dest_ptr, const EFBCopyParams& params, u32 native_width,
u32 bytes_per_row, u32 num_blocks_y, u32 memory_stride,
const EFBRectangle& src_rect, bool scale_by_half)
const EFBRectangle& src_rect, bool scale_by_half, float y_scale,
float gamma, float clamp_top, float clamp_bottom,
const TextureCacheBase::CopyFilterCoefficientArray& filter_coefficients)
{
g_renderer->ResetAPIState();
@ -146,14 +155,18 @@ void EncodeToRamFromTexture(u8* dest_ptr, const EFBCopyParams& params, u32 nativ
texconv_shader.program.Bind();
glUniform4i(texconv_shader.copy_position_uniform, src_rect.left, src_rect.top, native_width,
scale_by_half ? 2 : 1);
glUniform1f(texconv_shader.y_scale_uniform, params.y_scale);
glUniform1f(texconv_shader.y_scale_uniform, y_scale);
glUniform1f(texconv_shader.gamma_rcp_uniform, 1.0f / gamma);
glUniform2f(texconv_shader.clamp_tb_uniform, clamp_top, clamp_bottom);
glUniform3i(texconv_shader.filter_coefficients_uniform, filter_coefficients[0],
filter_coefficients[1], filter_coefficients[2]);
const GLuint read_texture = params.depth ?
FramebufferManager::ResolveAndGetDepthTarget(src_rect) :
FramebufferManager::ResolveAndGetRenderTarget(src_rect);
EncodeToRamUsingShader(read_texture, dest_ptr, bytes_per_row, num_blocks_y, memory_stride,
scale_by_half && !params.depth, params.y_scale);
scale_by_half && !params.depth, y_scale);
g_renderer->RestoreAPIState();
}