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GPU/HW: Mask bit handling in hardware renderers

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Fixes:
 - Menu effect in Ghost in the Shell
 - Incorrect text colours in menu of Dragon Quest VII
 - Fade effect in TwinBee RPG
 - Fog in Silent Hill
 - Water in Duke Nukem - Land of the Babes
 - Shadows in Ultraman - Fighting Evolution

and probably others.
This commit is contained in:
Connor McLaughlin
2020-05-03 17:11:28 +10:00
parent a5ecff0893
commit 9446587e8f
10 changed files with 448 additions and 128 deletions
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4
src/core/gpu_hw_opengl.h
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@ -30,6 +30,7 @@ protected:
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 UpdateVRAMReadTexture() override;
void UpdateDepthBufferFromMaskBit() override;
void SetScissorFromDrawingArea() override;
void MapBatchVertexPointer(u32 required_vertices) override;
void UnmapBatchVertexPointer(u32 used_vertices) override;
@ -63,11 +64,13 @@ private:
// downsample texture - used for readbacks at >1xIR.
GL::Texture m_vram_texture;
GL::Texture m_vram_depth_texture;
GL::Texture m_vram_read_texture;
GL::Texture m_vram_encoding_texture;
GL::Texture m_display_texture;
std::unique_ptr<GL::StreamBuffer> m_vertex_stream_buffer;
GLuint m_vram_fbo_id = 0;
GLuint m_vao_id = 0;
GLuint m_attributeless_vao_id = 0;
@ -85,6 +88,7 @@ private:
GL::Program m_vram_read_program;
GL::Program m_vram_write_program;
GL::Program m_vram_copy_program;
GL::Program m_vram_update_depth_program;
u32 m_uniform_buffer_alignment = 1;
u32 m_max_texture_buffer_size = 0;