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GPU: Fix interlaced display at higher internal resolutions

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This commit is contained in:
Connor McLaughlin
2019-10-30 01:01:57 +10:00
parent 5626d4f282
commit 1540769cb4
2 changed files with 26 additions and 15 deletions
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37
src/core/gpu_hw_opengl.cpp
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@ -385,7 +385,6 @@ void GPU_HW_OpenGL::UpdateDisplay()
}
else
{
const u32 field_offset = BoolToUInt8(m_GPUSTAT.vertical_interlace && !m_GPUSTAT.drawing_even_line);
const u32 vram_offset_x = m_crtc_state.regs.X;
const u32 vram_offset_y = m_crtc_state.regs.Y;
const u32 scaled_vram_offset_x = vram_offset_x * m_resolution_scale;
@ -414,9 +413,16 @@ void GPU_HW_OpenGL::UpdateDisplay()
}
else
{
const u32 field_offset = BoolToUInt8(m_GPUSTAT.vertical_interlace && !m_GPUSTAT.drawing_even_line);
const u32 scaled_field_offset = field_offset * m_resolution_scale;
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
const GL::Program& prog = m_display_programs[BoolToUInt8(m_GPUSTAT.display_area_color_depth_24)]
[BoolToUInt8(m_GPUSTAT.vertical_interlace)];
prog.Bind();
// Because of how the reinterpret shader works, we need to use the downscaled version.
if (m_GPUSTAT.display_area_color_depth_24 && m_resolution_scale > 1)
{
@ -426,29 +432,34 @@ void GPU_HW_OpenGL::UpdateDisplay()
scaled_vram_offset_x, scaled_flipped_vram_offset_y, scaled_vram_offset_x + scaled_display_width,
scaled_flipped_vram_offset_y + scaled_display_height, vram_offset_x, flipped_vram_offset_y,
vram_offset_x + display_width, flipped_vram_offset_y + display_height, GL_COLOR_BUFFER_BIT, GL_NEAREST);
m_display_texture->BindFramebuffer(GL_DRAW_FRAMEBUFFER);
m_vram_downsample_texture->Bind();
glViewport(0, field_offset, display_width, display_height);
prog.Uniform3i(0, vram_offset_x, flipped_vram_offset_y, field_offset);
glDrawArrays(GL_TRIANGLES, 0, 3);
m_system->GetHostInterface()->SetDisplayTexture(m_display_texture.get(), 0, 0, display_width, display_height,
m_crtc_state.display_aspect_ratio);
}
else
{
m_display_texture->BindFramebuffer(GL_DRAW_FRAMEBUFFER);
m_vram_texture->Bind();
glViewport(0, scaled_field_offset, scaled_display_width, scaled_display_height);
prog.Uniform3i(0, scaled_vram_offset_x, scaled_flipped_vram_offset_y, scaled_field_offset);
glDrawArrays(GL_TRIANGLES, 0, 3);
m_system->GetHostInterface()->SetDisplayTexture(m_display_texture.get(), 0, 0, scaled_display_width,
scaled_display_height, m_crtc_state.display_aspect_ratio);
}
const GL::Program& prog = m_display_programs[BoolToUInt8(m_GPUSTAT.display_area_color_depth_24)]
[BoolToUInt8(m_GPUSTAT.vertical_interlace)];
m_display_texture->BindFramebuffer(GL_DRAW_FRAMEBUFFER);
glViewport(0, field_offset, display_width, display_height);
prog.Bind();
prog.Uniform3i(0, vram_offset_x, flipped_vram_offset_y, field_offset);
glDrawArrays(GL_TRIANGLES, 0, 3);
// restore state
m_vram_texture->BindFramebuffer(GL_DRAW_FRAMEBUFFER);
glViewport(0, 0, m_vram_texture->GetWidth(), m_vram_texture->GetHeight());
glEnable(GL_SCISSOR_TEST);
m_system->GetHostInterface()->SetDisplayTexture(m_display_texture.get(), 0, 0, display_width, display_height,
m_crtc_state.display_aspect_ratio);
}
}
}