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GPU: Implement dithering on OpenGL backend

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This commit is contained in:
Connor McLaughlin
2019-11-01 22:47:32 +10:00
parent 1d1da1d82c
commit ac82383abe
5 changed files with 76 additions and 22 deletions
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20
src/core/gpu_hw_opengl.cpp
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@ -121,8 +121,6 @@ void GPU_HW_OpenGL::DrawRendererStatsWindow()
ImGui::NextColumn();
ImGui::Text("%u", m_last_stats.num_vertices);
ImGui::NextColumn();
}
ImGui::End();
@ -246,10 +244,14 @@ bool GPU_HW_OpenGL::CompilePrograms()
{
for (u32 texture_mode = 0; texture_mode < 9; texture_mode++)
{
if (!CompileProgram(m_render_programs[render_mode][texture_mode], static_cast<HWBatchRenderMode>(render_mode),
static_cast<TextureMode>(texture_mode)))
for (u8 dithering = 0; dithering < 2; dithering++)
{
return false;
if (!CompileProgram(m_render_programs[render_mode][texture_mode][dithering],
static_cast<HWBatchRenderMode>(render_mode), static_cast<TextureMode>(texture_mode),
ConvertToBoolUnchecked(dithering)))
{
return false;
}
}
}
}
@ -280,11 +282,12 @@ bool GPU_HW_OpenGL::CompilePrograms()
return true;
}
bool GPU_HW_OpenGL::CompileProgram(GL::Program& prog, HWBatchRenderMode render_mode, TextureMode texture_mode)
bool GPU_HW_OpenGL::CompileProgram(GL::Program& prog, HWBatchRenderMode render_mode, TextureMode texture_mode,
bool dithering)
{
const bool textured = texture_mode != TextureMode::Disabled;
const std::string vs = GenerateVertexShader(textured);
const std::string fs = GenerateFragmentShader(render_mode, texture_mode);
const std::string fs = GenerateFragmentShader(render_mode, texture_mode, dithering);
if (!prog.Compile(vs.c_str(), fs.c_str()))
return false;
@ -319,7 +322,8 @@ bool GPU_HW_OpenGL::CompileProgram(GL::Program& prog, HWBatchRenderMode render_m
void GPU_HW_OpenGL::SetDrawState(HWBatchRenderMode render_mode)
{
const GL::Program& prog = m_render_programs[static_cast<u32>(render_mode)][static_cast<u32>(m_batch.texture_mode)];
const GL::Program& prog =
m_render_programs[static_cast<u32>(render_mode)][static_cast<u32>(m_batch.texture_mode)][m_batch.dithering];
prog.Bind();
prog.Uniform2i(0, m_drawing_offset.x, m_drawing_offset.y);