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GPU/HW: Clamp interpolated UVs to polygon limits

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Fixes texture filtering and PGXP issues in some games.
This commit is contained in:
Connor McLaughlin
2020-08-10 22:37:07 +10:00
parent f14dc6de27
commit b95ce993e0
7 changed files with 130 additions and 58 deletions
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24
src/core/gpu_hw.h
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@ -58,13 +58,16 @@ protected:
u32 texpage;
u16 u; // 16-bit texcoords are needed for 256 extent rectangles
u16 v;
u32 uv_limits;
ALWAYS_INLINE void Set(float x_, float y_, float z_, float w_, u32 color_, u32 texpage_, u16 packed_texcoord)
ALWAYS_INLINE void Set(float x_, float y_, float z_, float w_, u32 color_, u32 texpage_, u16 packed_texcoord,
u32 uv_limits_)
{
Set(x_, y_, z_, w_, color_, texpage_, packed_texcoord & 0xFF, (packed_texcoord >> 8));
Set(x_, y_, z_, w_, color_, texpage_, packed_texcoord & 0xFF, (packed_texcoord >> 8), uv_limits_);
}
ALWAYS_INLINE void Set(float x_, float y_, float z_, float w_, u32 color_, u32 texpage_, u16 u_, u16 v_)
ALWAYS_INLINE void Set(float x_, float y_, float z_, float w_, u32 color_, u32 texpage_, u16 u_, u16 v_,
u32 uv_limits_)
{
x = x_;
y = y_;
@ -74,6 +77,17 @@ protected:
texpage = texpage_;
u = u_;
v = v_;
uv_limits = uv_limits_;
}
ALWAYS_INLINE static u32 PackUVLimits(u32 min_u, u32 max_u, u32 min_v, u32 max_v)
{
return min_u | (min_v << 8) | (max_u << 16) | (max_v << 24);
}
ALWAYS_INLINE void SetUVLimits(u32 min_u, u32 max_u, u32 min_v, u32 max_v)
{
uv_limits = PackUVLimits(min_u, max_u, min_v, max_v);
}
};
@ -236,6 +250,10 @@ protected:
/// Handles quads with flipped texture coordinate directions.
static void HandleFlippedQuadTextureCoordinates(BatchVertex* vertices);
/// Computes polygon U/V boundaries.
static void ComputePolygonUVLimits(BatchVertex* vertices, u32 num_vertices);
static bool AreUVLimitsNeeded();
HeapArray<u16, VRAM_WIDTH * VRAM_HEIGHT> m_vram_shadow;
BatchVertex* m_batch_start_vertex_ptr = nullptr;