GPU/HW: Track VRAM fills/writes in dirty rectangle instead of invalidating

src/core/gpu_hw.cpp

@@ -178,6 +178,21 @@ GPU_HW::BatchPrimitive GPU_HW::GetPrimitiveForCommand(RenderCommand rc)
     return BatchPrimitive::Triangles;
 }
 
+void GPU_HW::FillVRAM(u32 x, u32 y, u32 width, u32 height, u32 color)
+{
+  m_vram_dirty_rect.Include(Common::Rectangle<u32>::FromExtents(x, y, width, height));
+}
+
+void GPU_HW::UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void* data)
+{
+  m_vram_dirty_rect.Include(Common::Rectangle<u32>::FromExtents(x, y, width, height));
+}
+
+void GPU_HW::CopyVRAM(u32 src_x, u32 src_y, u32 dst_x, u32 dst_y, u32 width, u32 height)
+{
+  m_vram_dirty_rect.Include(Common::Rectangle<u32>::FromExtents(dst_x, dst_y, width, height));
+}
+
 void GPU_HW::DispatchRenderCommand(RenderCommand rc, u32 num_vertices, const u32* command_ptr)
 {
   TextureMode texture_mode;
@@ -206,19 +221,6 @@ void GPU_HW::DispatchRenderCommand(RenderCommand rc, u32 num_vertices, const u32
         break;
     }
 
-    texture_mode = m_render_state.texture_mode;
-    if (rc.raw_texture_enable)
-    {
-      texture_mode =
-        static_cast<TextureMode>(static_cast<u8>(texture_mode) | static_cast<u8>(TextureMode::RawTextureBit));
-    }
-  }
-  else
-  {
-    m_render_state.SetFromPageAttribute(Truncate16(m_GPUSTAT.bits));
-    texture_mode = TextureMode::Disabled;
-  }
-
     // texture page changed - check that the new page doesn't intersect the drawing area
     if (m_render_state.IsTexturePageChanged())
     {
@@ -234,6 +236,19 @@ void GPU_HW::DispatchRenderCommand(RenderCommand rc, u32 num_vertices, const u32
       }
     }
 
+    texture_mode = m_render_state.texture_mode;
+    if (rc.raw_texture_enable)
+    {
+      texture_mode =
+        static_cast<TextureMode>(static_cast<u8>(texture_mode) | static_cast<u8>(TextureMode::RawTextureBit));
+    }
+  }
+  else
+  {
+    m_render_state.SetFromPageAttribute(Truncate16(m_GPUSTAT.bits));
+    texture_mode = TextureMode::Disabled;
+  }
+
   // has any state changed which requires a new batch?
   const TransparencyMode transparency_mode =
     rc.transparency_enable ? m_render_state.transparency_mode : TransparencyMode::Disabled;

src/core/gpu_hw.h

@@ -112,13 +112,14 @@ protected:
 
   virtual void MapBatchVertexPointer(u32 required_vertices) = 0;
 
-  void InvalidateVRAMReadTexture() { m_vram_read_texture_dirty = true; }
-
   u32 GetBatchVertexSpace() const { return static_cast<u32>(m_batch_end_vertex_ptr - m_batch_current_vertex_ptr); }
   u32 GetBatchVertexCount() const { return static_cast<u32>(m_batch_current_vertex_ptr - m_batch_start_vertex_ptr); }
 
   bool IsFlushed() const { return m_batch_current_vertex_ptr == m_batch_start_vertex_ptr; }
 
+  void FillVRAM(u32 x, u32 y, u32 width, u32 height, u32 color) override;
+  void UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void* data) override;
+  void CopyVRAM(u32 src_x, u32 src_y, u32 dst_x, u32 dst_y, u32 width, u32 height) override;
   void DispatchRenderCommand(RenderCommand rc, u32 num_vertices, const u32* command_ptr) override;
   void DrawRendererStats(bool is_idle_frame) override;
 

src/core/gpu_hw_d3d11.cpp

@@ -595,6 +595,8 @@ void GPU_HW_D3D11::ReadVRAM(u32 x, u32 y, u32 width, u32 height, void* buffer)
 
 void GPU_HW_D3D11::FillVRAM(u32 x, u32 y, u32 width, u32 height, u32 color)
 {
+  GPU_HW::FillVRAM(x, y, width, height, color);
+
   // drop precision unless true colour is enabled
   if (!m_true_color)
     color = RGBA5551ToRGBA8888(RGBA8888ToRGBA5551(color));
@@ -607,11 +609,12 @@ void GPU_HW_D3D11::FillVRAM(u32 x, u32 y, u32 width, u32 height, u32 color)
   DrawUtilityShader(m_fill_pixel_shader.Get(), uniforms, sizeof(uniforms));
 
   RestoreGraphicsAPIState();
-  InvalidateVRAMReadTexture();
 }
 
 void GPU_HW_D3D11::UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void* data)
 {
+  GPU_HW::UpdateVRAM(x, y, width, height, data);
+
   const u32 num_pixels = width * height;
   const auto map_result = m_texture_stream_buffer.Map(m_context.Get(), sizeof(u16), num_pixels * sizeof(u16));
   std::memcpy(map_result.pointer, data, num_pixels * sizeof(u16));
@@ -626,11 +629,12 @@ void GPU_HW_D3D11::UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void* d
   DrawUtilityShader(m_vram_write_pixel_shader.Get(), uniforms, sizeof(uniforms));
 
   RestoreGraphicsAPIState();
-  InvalidateVRAMReadTexture();
 }
 
 void GPU_HW_D3D11::CopyVRAM(u32 src_x, u32 src_y, u32 dst_x, u32 dst_y, u32 width, u32 height)
 {
+  GPU_HW::CopyVRAM(src_x, src_y, dst_x, dst_y, width, height);
+
   src_x *= m_resolution_scale;
   src_y *= m_resolution_scale;
   dst_x *= m_resolution_scale;
@@ -640,7 +644,6 @@ void GPU_HW_D3D11::CopyVRAM(u32 src_x, u32 src_y, u32 dst_x, u32 dst_y, u32 widt
 
   const CD3D11_BOX src_box(src_x, src_y, 0, src_x + width, src_y + height, 1);
   m_context->CopySubresourceRegion(m_vram_texture, 0, dst_x, dst_y, 0, m_vram_texture, 0, &src_box);
-  InvalidateVRAMReadTexture();
 }
 
 void GPU_HW_D3D11::UpdateVRAMReadTexture()

src/core/gpu_hw_opengl.cpp

@@ -547,6 +547,8 @@ void GPU_HW_OpenGL::ReadVRAM(u32 x, u32 y, u32 width, u32 height, void* buffer)
 
 void GPU_HW_OpenGL::FillVRAM(u32 x, u32 y, u32 width, u32 height, u32 color)
 {
+  GPU_HW::FillVRAM(x, y, width, height, color);
+
   // scale coordinates
   x *= m_resolution_scale;
   y *= m_resolution_scale;
@@ -564,11 +566,12 @@ void GPU_HW_OpenGL::FillVRAM(u32 x, u32 y, u32 width, u32 height, u32 color)
   glClear(GL_COLOR_BUFFER_BIT);
 
   SetScissorFromDrawingArea();
-  InvalidateVRAMReadTexture();
 }
 
 void GPU_HW_OpenGL::UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void* data)
 {
+  GPU_HW::UpdateVRAM(x, y, width, height, data);
+
   const u32 num_pixels = width * height;
 #if 0
   const auto map_result = m_texture_stream_buffer->Map(sizeof(u32), num_pixels * sizeof(u32));
@@ -649,12 +652,12 @@ void GPU_HW_OpenGL::UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void*
 
   SetScissorFromDrawingArea();
 #endif
-
-  InvalidateVRAMReadTexture();
 }
 
 void GPU_HW_OpenGL::CopyVRAM(u32 src_x, u32 src_y, u32 dst_x, u32 dst_y, u32 width, u32 height)
 {
+  GPU_HW::CopyVRAM(src_x, src_y, dst_x, dst_y, width, height);
+
   src_x *= m_resolution_scale;
   src_y *= m_resolution_scale;
   dst_x *= m_resolution_scale;
@@ -671,8 +674,6 @@ void GPU_HW_OpenGL::CopyVRAM(u32 src_x, u32 src_y, u32 dst_x, u32 dst_y, u32 wid
   glBlitFramebuffer(src_x, src_y, src_x + width, src_y + height, dst_x, dst_y, dst_x + width, dst_y + height,
                     GL_COLOR_BUFFER_BIT, GL_NEAREST);
   glEnable(GL_SCISSOR_TEST);
-
-  InvalidateVRAMReadTexture();
 }
 
 void GPU_HW_OpenGL::UpdateVRAMReadTexture()