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GPU/HW: Only copy the dirty area to the VRAM read texture

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This commit is contained in:
Connor McLaughlin
2019-11-05 22:34:27 +10:00
parent da51d49d18
commit cc7483ad58
8 changed files with 85 additions and 35 deletions
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22
src/core/gpu_hw_opengl.cpp
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@ -169,7 +169,7 @@ void GPU_HW_OpenGL::CreateFramebuffer()
std::make_unique<GL::Texture>(texture_width, texture_height, GL_RGBA, GL_UNSIGNED_BYTE, nullptr, false, true);
m_vram_texture->BindFramebuffer(GL_DRAW_FRAMEBUFFER);
m_vram_read_texture_dirty = true;
SetFullVRAMDirtyRectangle();
}
void GPU_HW_OpenGL::ClearFramebuffer()
@ -178,7 +178,7 @@ void GPU_HW_OpenGL::ClearFramebuffer()
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
glEnable(GL_SCISSOR_TEST);
m_vram_read_texture_dirty = true;
SetFullVRAMDirtyRectangle();
}
void GPU_HW_OpenGL::DestroyFramebuffer()
@ -352,9 +352,6 @@ void GPU_HW_OpenGL::SetDrawState(BatchRenderMode render_mode)
UploadUniformBlock(&m_batch_ubo_data, sizeof(m_batch_ubo_data));
m_batch_ubo_dirty = false;
}
if (m_vram_read_texture_dirty)
UpdateVRAMReadTexture();
}
void GPU_HW_OpenGL::SetScissorFromDrawingArea()
@ -678,13 +675,16 @@ void GPU_HW_OpenGL::CopyVRAM(u32 src_x, u32 src_y, u32 dst_x, u32 dst_y, u32 wid
void GPU_HW_OpenGL::UpdateVRAMReadTexture()
{
m_renderer_stats.num_vram_read_texture_updates++;
m_vram_read_texture_dirty = false;
m_vram_dirty_rect.SetInvalid();
// TODO: Fallback blit path.
const auto scaled_rect = m_vram_dirty_rect * m_resolution_scale;
const u32 flipped_y = m_vram_texture->GetHeight() - scaled_rect.top - scaled_rect.GetHeight();
// TODO: Fallback blit path, and partial updates.
glCopyImageSubData(m_vram_texture->GetGLId(), GL_TEXTURE_2D, 0, 0, 0, 0, m_vram_read_texture->GetGLId(),
GL_TEXTURE_2D, 0, 0, 0, 0, m_vram_texture->GetWidth(), m_vram_texture->GetHeight(), 1);
glCopyImageSubData(m_vram_texture->GetGLId(), GL_TEXTURE_2D, 0, scaled_rect.left, flipped_y, 0,
m_vram_read_texture->GetGLId(), GL_TEXTURE_2D, 0, scaled_rect.left, flipped_y, 0,
scaled_rect.GetWidth(), scaled_rect.GetHeight(), 1);
m_renderer_stats.num_vram_read_texture_updates++;
ClearVRAMDirtyRectangle();
}
void GPU_HW_OpenGL::FlushRender()