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Select blend function once per triangle

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This commit is contained in:
Magnus Norddahl 2019-12-08 14:42:20 +01:00
parent 73c62c5404
commit f7ae955e6a
2 changed files with 62 additions and 36 deletions
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2
src/rendering/polyrenderer/drawers/poly_triangle.h
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@ -272,6 +272,8 @@ public:
uint8_t StencilTestValue = 0;
uint8_t StencilWriteValue = 0;
void (*WriteColorFunc)(int y, int x0, int x1, PolyTriangleThreadData* thread) = nullptr;
private:
ShadedTriVertex ShadeVertex(int index);
void DrawShadedPoint(const ShadedTriVertex *const* vertex);

96
src/rendering/polyrenderer/drawers/screen_triangle.cpp
View file

@ -596,57 +596,78 @@ static void BlendColor(int y, int x0, int x1, PolyTriangleThreadData* thread)
}
#endif
static void WriteColor(int y, int x0, int x1, PolyTriangleThreadData* thread)
#ifdef NO_SSE
static void BlendColorOpaque(int y, int x0, int x1, PolyTriangleThreadData* thread)
{
using namespace TriScreenDrawerModes;
uint32_t* dest = (uint32_t*)thread->dest;
uint32_t* line = dest + y * (ptrdiff_t)thread->dest_pitch;
uint32_t* fragcolor = thread->scanline.FragColor;
memcpy(line + x0, fragcolor + x0, (x1 - x0) * sizeof(uint32_t));
}
#else
static void BlendColorOpaque(int y, int x0, int x1, PolyTriangleThreadData* thread)
{
uint32_t* dest = (uint32_t*)thread->dest;
uint32_t* line = dest + y * (ptrdiff_t)thread->dest_pitch;
uint32_t* fragcolor = thread->scanline.FragColor;
int ssecount = ((x1 - x0) & ~3);
int sseend = x0 + ssecount;
for (int x = x0; x < sseend; x += 4)
{
__m128i v = _mm_loadu_si128((__m128i*) & fragcolor[x]);
_mm_storeu_si128((__m128i*) & line[x], v);
}
for (int x = sseend; x < x1; x++)
{
line[x] = fragcolor[x];
}
}
#endif
static void BlendColorOpaqueAlphaTest(int y, int x0, int x1, PolyTriangleThreadData* thread)
{
uint32_t* dest = (uint32_t*)thread->dest;
uint32_t* line = dest + y * (ptrdiff_t)thread->dest_pitch;
uint32_t* fragcolor = thread->scanline.FragColor;
uint8_t* discard = thread->scanline.discard;
for (int x = x0; x < x1; x++)
{
if (!discard[x])
line[x] = fragcolor[x];
}
}
static void SelectWriteColorFunc(PolyTriangleThreadData* thread)
{
void(*writecolorfunc)(int y, int x0, int x1, PolyTriangleThreadData * thread);
FRenderStyle style = thread->RenderStyle;
if (style.BlendOp == STYLEOP_Add && style.SrcAlpha == STYLEALPHA_One && style.DestAlpha == STYLEALPHA_Zero)
{
uint32_t* dest = (uint32_t*)thread->dest;
uint32_t* line = dest + y * (ptrdiff_t)thread->dest_pitch;
uint32_t* fragcolor = thread->scanline.FragColor;
if (!thread->AlphaTest)
{
#if !defined(NO_SSE)
int ssecount = ((x1 - x0) & ~3);
int sseend = x0 + ssecount;
for (int x = x0; x < sseend; x += 4)
{
__m128i v = _mm_loadu_si128((__m128i*)&fragcolor[x]);
_mm_storeu_si128((__m128i*)&line[x], v);
}
for (int x = sseend; x < x1; x++)
{
line[x] = fragcolor[x];
}
#else
memcpy(line + x0, fragcolor + x0, (x1 - x0) * sizeof(uint32_t));
#endif
writecolorfunc = &BlendColorOpaque;
}
else
{
uint8_t* discard = thread->scanline.discard;
for (int x = x0; x < x1; x++)
{
if (!discard[x])
line[x] = fragcolor[x];
}
writecolorfunc = &BlendColorOpaqueAlphaTest;
}
}
else
{
using namespace TriScreenDrawerModes;
if (!thread->AlphaTest)
{
switch (style.BlendOp)
{
default:
case STYLEOP_Add: BlendColor<BlendColorOpt_Add>(y, x0, x1, thread); break;
case STYLEOP_Sub: BlendColor<BlendColorOpt_Sub>(y, x0, x1, thread); break;
case STYLEOP_RevSub: BlendColor<BlendColorOpt_RevSub>(y, x0, x1, thread); break;
case STYLEOP_Add: writecolorfunc = &BlendColor<BlendColorOpt_Add>; break;
case STYLEOP_Sub: writecolorfunc = &BlendColor<BlendColorOpt_Sub>; break;
case STYLEOP_RevSub: writecolorfunc = &BlendColor<BlendColorOpt_RevSub>; break;
}
}
else
@ -654,12 +675,13 @@ static void WriteColor(int y, int x0, int x1, PolyTriangleThreadData* thread)
switch (style.BlendOp)
{
default:
case STYLEOP_Add: BlendColor<BlendColorOpt_AlphaTest_Add>(y, x0, x1, thread); break;
case STYLEOP_Sub: BlendColor<BlendColorOpt_AlphaTest_Sub>(y, x0, x1, thread); break;
case STYLEOP_RevSub: BlendColor<BlendColorOpt_AlphaTest_RevSub>(y, x0, x1, thread); break;
case STYLEOP_Add: writecolorfunc = BlendColor<BlendColorOpt_AlphaTest_Add>; break;
case STYLEOP_Sub: writecolorfunc = BlendColor<BlendColorOpt_AlphaTest_Sub>; break;
case STYLEOP_RevSub: writecolorfunc = BlendColor<BlendColorOpt_AlphaTest_RevSub>; break;
}
}
}
thread->WriteColorFunc = writecolorfunc;
}
static void WriteDepth(int y, int x0, int x1, PolyTriangleThreadData* thread)
@ -1210,7 +1232,7 @@ static void DrawSpan(int y, int x0, int x1, const TriDrawTriangleArgs* args, Pol
RunShader(x0, x1, thread);
if (thread->WriteColor)
WriteColor(y, x0, x1, thread);
thread->WriteColorFunc(y, x0, x1, thread);
if (thread->WriteDepth)
WriteDepth(y, x0, x1, thread);
if (thread->WriteStencil)
@ -1340,6 +1362,8 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs* args, PolyTriangleThreadDat
if (topY >= bottomY)
return;
SelectWriteColorFunc(thread);
void(*testfunc)(int y, int x0, int x1, const TriDrawTriangleArgs * args, PolyTriangleThreadData * thread);
int opt = 0;