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Enhance MMPX, Fixed some defects in the original algorithm by morphological analysis

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Enhance MMPX, Fixed some defects in the original algorithm by morphological analysis

Set mmpx scaling to 2x
This commit is contained in:
crashGG 2026-05-13 21:08:47 +03:00
parent 778ca369cd
commit 05adddb042
2 changed files with 1103 additions and 82 deletions
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1146
src/video_core/host_shaders/texture_filtering/mmpx.frag
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39
src/video_core/renderer_opengl/gl_blit_helper.cpp
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@ -271,13 +271,50 @@ void BlitHelper::FilterXbrz(Surface& surface, const VideoCore::TextureBlit& blit
}
void BlitHelper::FilterMMPX(Surface& surface, const VideoCore::TextureBlit& blit) {
static constexpr u8 internal_scale_factor = 2;
const OpenGLState prev_state = OpenGLState::GetCurState();
SCOPE_EXIT({ prev_state.Apply(); });
const auto temp_rect{blit.src_rect * internal_scale_factor};
const u32 tw = temp_rect.GetWidth();
const u32 th = temp_rect.GetHeight();
const auto& tuple = surface.Tuple();
TempTexture INTERMEDIATE;
INTERMEDIATE.fbo.Create();
INTERMEDIATE.tex.Create();
glBindTexture(GL_TEXTURE_2D, INTERMEDIATE.tex.handle);
glTexStorage2D(GL_TEXTURE_2D, 1, tuple.internal_format, tw, th);
state.texture_units[0].texture_2d = surface.Handle(0);
state.texture_units[0].sampler = nearest_sampler.handle;
state.texture_units[1].texture_2d = INTERMEDIATE.tex.handle;
state.draw.draw_framebuffer = INTERMEDIATE.fbo.handle;
state.Apply();
// MMPX
SetParams(mmpx_program, surface.RealExtent(false), blit.src_rect);
Draw(mmpx_program, surface.Handle(), draw_fbo.handle, blit.dst_level, blit.dst_rect);
Draw(mmpx_program, INTERMEDIATE.tex.handle, INTERMEDIATE.fbo.handle, 0, temp_rect);
glBindFramebuffer(GL_READ_FRAMEBUFFER, INTERMEDIATE.fbo.handle);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, draw_fbo.handle);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, surface.Handle(), blit.dst_level);
// LINEAR
glBlitFramebuffer(0, 0, tw, th,
blit.dst_rect.left, blit.dst_rect.bottom, blit.dst_rect.right, blit.dst_rect.top,
GL_COLOR_BUFFER_BIT, GL_LINEAR);
// clean
state.texture_units[0].texture_2d = 0;
state.texture_units[1].texture_2d = 0;
}
void BlitHelper::SetParams(OGLProgram& program, const VideoCore::Extent& src_extent,
Common::Rectangle<u32> src_rect) {
glProgramUniform2f(