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GPU/HW: Provide depth in vertex rather than computing

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Fixes mask bit effects in Vulkan (e.g. Silent Hill).
Significantly reduces the number of mask bit refreshes in OpenGL/Vulkan.
This commit is contained in:
Connor McLaughlin
2020-06-20 20:21:32 +10:00
parent 7192b8d83a
commit a08c398d4b
6 changed files with 58 additions and 112 deletions
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28
src/core/gpu_hw.h
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@ -58,20 +58,22 @@ protected:
{
s32 x;
s32 y;
s32 z;
u32 color;
u32 texpage;
u16 u; // 16-bit texcoords are needed for 256 extent rectangles
u16 v;
ALWAYS_INLINE void Set(s32 x_, s32 y_, u32 color_, u32 texpage_, u16 packed_texcoord)
ALWAYS_INLINE void Set(s32 x_, s32 y_, s32 z_, u32 color_, u32 texpage_, u16 packed_texcoord)
{
Set(x_, y_, color_, texpage_, packed_texcoord & 0xFF, (packed_texcoord >> 8));
Set(x_, y_, z_, color_, texpage_, packed_texcoord & 0xFF, (packed_texcoord >> 8));
}
ALWAYS_INLINE void Set(s32 x_, s32 y_, u32 color_, u32 texpage_, u16 u_, u16 v_)
ALWAYS_INLINE void Set(s32 x_, s32 y_, s32 z_, u32 color_, u32 texpage_, u16 u_, u16 v_)
{
x = x_;
y = y_;
z = z_;
color = color_;
texpage = texpage_;
u = u_;
@ -112,8 +114,6 @@ protected:
float u_src_alpha_factor;
float u_dst_alpha_factor;
u32 u_interlaced_displayed_field;
u32 u_vertex_depth_id;
u32 u_check_mask_before_draw;
u32 u_set_mask_while_drawing;
};
@ -183,21 +183,12 @@ protected:
u32 GetBatchVertexCount() const { return static_cast<u32>(m_batch_current_vertex_ptr - m_batch_start_vertex_ptr); }
void EnsureVertexBufferSpace(u32 required_vertices);
void EnsureVertexBufferSpaceForCurrentCommand();
void ResetBatchVertexDepthID();
void IncrementBatchVertexID(u32 count);
void SetBatchUBOVertexDepthID(u32 value);
void ResetBatchVertexDepth();
/// Returns the value to be written to the depth buffer for the current operation for mask bit emulation.
ALWAYS_INLINE float GetCurrentNormalizedBatchVertexDepthID() const
ALWAYS_INLINE float GetCurrentNormalizedVertexDepth() const
{
return 1.0f - (static_cast<float>(m_batch_next_vertex_depth_id) / 65535.0f);
}
/// Returns true if the batch vertex depth ID needs to be updated.
ALWAYS_INLINE bool BatchVertexDepthIDNeedsUpdate() const
{
// because GL uses base vertex we're incrementing the depth id every draw whether we like it or not
return m_batch.check_mask_before_draw || m_render_api != HostDisplay::RenderAPI::D3D11;
return (static_cast<float>(m_current_depth) / 65535.0f);
}
/// Returns the interlaced mode to use when scanning out/displaying.
@ -246,8 +237,7 @@ protected:
BatchVertex* m_batch_end_vertex_ptr = nullptr;
BatchVertex* m_batch_current_vertex_ptr = nullptr;
u32 m_batch_base_vertex = 0;
u32 m_batch_current_vertex_depth_id = 0;
u32 m_batch_next_vertex_depth_id = 0;
s32 m_current_depth = 0;
u32 m_resolution_scale = 1;
u32 m_max_resolution_scale = 1;