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- Use static ifs (C++11 version of them, anyhow) for the triangle draw function
This commit is contained in:
Magnus Norddahl
parent
e22e249287
commit
2aefeb6401
2 changed files with 192 additions and 65 deletions
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@ -54,6 +54,8 @@ static void SortVertices(const TriDrawTriangleArgs *args, ShadedTriVertex **sort
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void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadData *thread)
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{
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using namespace TriScreenDrawerModes;
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// Sort vertices by Y position
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ShadedTriVertex *sortedVertices[3];
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SortVertices(args, sortedVertices);
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@ -75,8 +77,7 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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// Find start/end X positions for each line covered by the triangle:
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int leftEdge[MAXHEIGHT];
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int rightEdge[MAXHEIGHT];
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int16_t edges[MAXHEIGHT * 2];
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float longDX = sortedVertices[2]->x - sortedVertices[0]->x;
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float longDY = sortedVertices[2]->y - sortedVertices[0]->y;
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@ -98,8 +99,8 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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x0 = clamp(x0, 0, clipright);
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x1 = clamp(x1, 0, clipright);
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leftEdge[y] = x0;
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rightEdge[y] = x1;
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edges[y << 1] = x0;
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edges[(y << 1) + 1] = x1;
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shortPos += shortStep;
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longPos += longStep;
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@ -121,64 +122,96 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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x0 = clamp(x0, 0, clipright);
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x1 = clamp(x1, 0, clipright);
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leftEdge[y] = x0;
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rightEdge[y] = x1;
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edges[y << 1] = x0;
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edges[(y << 1) + 1] = x1;
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shortPos += shortStep;
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longPos += longStep;
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}
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}
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// Draw the triangle:
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int opt = 0;
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if (args->uniforms->DepthTest()) opt |= SWTRI_DepthTest;
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/*if (args->uniforms->StencilTest())*/ opt |= SWTRI_StencilTest;
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if (args->uniforms->WriteColor()) opt |= SWTRI_WriteColor;
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if (args->uniforms->WriteDepth()) opt |= SWTRI_WriteDepth;
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if (args->uniforms->WriteStencil()) opt |= SWTRI_WriteStencil;
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TriangleDrawers[opt](args, thread, edges, topY, bottomY);
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}
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template<typename OptT>
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void DrawTriangle(const TriDrawTriangleArgs *args, PolyTriangleThreadData *thread, int16_t *edges, int topY, int bottomY)
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{
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using namespace TriScreenDrawerModes;
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void(*drawfunc)(int y, int x0, int x1, const TriDrawTriangleArgs *args, PolyTriangleThreadData *thread);
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float stepXW, v1X, v1Y, v1W, posXW;
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uint8_t stencilTestValue, stencilWriteValue;
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float *zbufferLine;
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uint8_t *stencilLine;
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if (OptT::Flags & SWTRI_WriteColor)
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{
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int bmode = (int)args->uniforms->BlendMode();
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auto drawfunc = args->destBgra ? ScreenTriangle::SpanDrawers32[bmode] : ScreenTriangle::SpanDrawers8[bmode];
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drawfunc = args->destBgra ? ScreenTriangle::SpanDrawers32[bmode] : ScreenTriangle::SpanDrawers8[bmode];
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}
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float stepXW = args->gradientX.W;
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float v1X = args->v1->x;
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float v1Y = args->v1->y;
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float v1W = args->v1->w;
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if ((OptT::Flags & SWTRI_DepthTest) || (OptT::Flags & SWTRI_WriteDepth))
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{
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stepXW = args->gradientX.W;
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v1X = args->v1->x;
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v1Y = args->v1->y;
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v1W = args->v1->w;
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}
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bool depthTest = args->uniforms->DepthTest();
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bool stencilTest = true;
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bool writeColor = args->uniforms->WriteColor();
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bool writeStencil = args->uniforms->WriteStencil();
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bool writeDepth = args->uniforms->WriteDepth();
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uint8_t stencilTestValue = args->uniforms->StencilTestValue();
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uint8_t stencilWriteValue = args->uniforms->StencilWriteValue();
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if (OptT::Flags & SWTRI_StencilTest)
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stencilTestValue = args->uniforms->StencilTestValue();
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if (OptT::Flags & SWTRI_WriteStencil)
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stencilWriteValue = args->uniforms->StencilWriteValue();
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int num_cores = thread->num_cores;
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for (int y = topY + thread->skipped_by_thread(topY); y < bottomY; y += num_cores)
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{
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int x = leftEdge[y];
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int xend = rightEdge[y];
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int x = edges[y << 1];
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int xend = edges[(y << 1) + 1];
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float *zbufferLine = args->zbuffer + args->stencilpitch * y;
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uint8_t *stencilLine = args->stencilbuffer + args->stencilpitch * y;
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if ((OptT::Flags & SWTRI_StencilTest) || (OptT::Flags & SWTRI_WriteStencil))
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stencilLine = args->stencilbuffer + args->stencilpitch * y;
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if ((OptT::Flags & SWTRI_DepthTest) || (OptT::Flags & SWTRI_WriteDepth))
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{
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zbufferLine = args->zbuffer + args->stencilpitch * y;
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float startX = x + (0.5f - v1X);
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float startY = y + (0.5f - v1Y);
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float posXW = v1W + stepXW * startX + args->gradientY.W * startY + args->depthOffset;
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posXW = v1W + stepXW * startX + args->gradientY.W * startY + args->depthOffset;
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}
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#ifndef NO_SSE
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__m128 mstepXW = _mm_set1_ps(stepXW * 4.0f);
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__m128 mfirstStepXW = _mm_setr_ps(0.0f, stepXW, stepXW + stepXW, stepXW + stepXW + stepXW);
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__m128 mstepXW, mfirstStepXW;
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if ((OptT::Flags & SWTRI_DepthTest) || (OptT::Flags & SWTRI_WriteDepth))
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{
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mstepXW = _mm_set1_ps(stepXW * 4.0f);
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mfirstStepXW = _mm_setr_ps(0.0f, stepXW, stepXW + stepXW, stepXW + stepXW + stepXW);
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}
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while (x < xend)
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{
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int xstart = x;
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if (depthTest && stencilTest)
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if ((OptT::Flags & SWTRI_DepthTest) && (OptT::Flags & SWTRI_StencilTest))
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{
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int xendsse = x + ((xend - x) / 4);
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__m128 mposXW = _mm_add_ps(_mm_set1_ps(posXW), mfirstStepXW);
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while (_mm_movemask_ps(_mm_cmple_ps(_mm_loadu_ps(zbufferLine + x), mposXW)) == 15 &&
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while (x < xendsse &&
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_mm_movemask_ps(_mm_cmple_ps(_mm_loadu_ps(zbufferLine + x), mposXW)) == 15 &&
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stencilLine[x] == stencilTestValue &&
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stencilLine[x + 1] == stencilTestValue &&
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stencilLine[x + 2] == stencilTestValue &&
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stencilLine[x + 3] == stencilTestValue &&
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x < xendsse)
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stencilLine[x + 3] == stencilTestValue)
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{
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if (writeDepth)
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if (OptT::Flags & SWTRI_WriteDepth)
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_mm_storeu_ps(zbufferLine + x, mposXW);
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mposXW = _mm_add_ps(mposXW, mstepXW);
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x += 4;
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@ -187,19 +220,19 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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while (zbufferLine[x] <= posXW && stencilLine[x] == stencilTestValue && x < xend)
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{
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if (writeDepth)
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if (OptT::Flags & SWTRI_WriteDepth)
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zbufferLine[x] = posXW;
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posXW += stepXW;
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x++;
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}
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}
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else if (depthTest)
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else if (OptT::Flags & SWTRI_DepthTest)
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{
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int xendsse = x + ((xend - x) / 4);
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__m128 mposXW = _mm_add_ps(_mm_set1_ps(posXW), mfirstStepXW);
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while (_mm_movemask_ps(_mm_cmple_ps(_mm_loadu_ps(zbufferLine + x), mposXW)) == 15 && x < xendsse)
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while (x < xendsse && _mm_movemask_ps(_mm_cmple_ps(_mm_loadu_ps(zbufferLine + x), mposXW)) == 15)
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{
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if (writeDepth)
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if (OptT::Flags & SWTRI_WriteDepth)
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_mm_storeu_ps(zbufferLine + x, mposXW);
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mposXW = _mm_add_ps(mposXW, mstepXW);
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x += 4;
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@ -208,14 +241,20 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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while (zbufferLine[x] <= posXW && x < xend)
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{
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if (writeDepth)
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if (OptT::Flags & SWTRI_WriteDepth)
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zbufferLine[x] = posXW;
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posXW += stepXW;
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x++;
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}
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}
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else if (stencilTest)
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else if (OptT::Flags & SWTRI_StencilTest)
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{
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int xendsse = x + ((xend - x) / 16);
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while (x < xendsse && _mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((const __m128i*)&stencilLine[x]), _mm_set1_epi8(stencilTestValue))) == 0xffff)
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{
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x += 16;
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}
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while (stencilLine[x] == stencilTestValue && x < xend)
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x++;
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}
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@ -226,16 +265,24 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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if (x > xstart)
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{
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if (writeColor)
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if (OptT::Flags & SWTRI_WriteColor)
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drawfunc(y, xstart, x, args, thread);
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if (writeStencil)
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if (OptT::Flags & SWTRI_WriteStencil)
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{
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for (int i = xstart; i < x; i++)
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stencilLine[i] = stencilWriteValue;
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int i = xstart;
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int xendsse = xstart + ((x - xstart) / 16);
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while (i < xendsse)
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{
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_mm_storeu_si128((__m128i*)&stencilLine[i], _mm_set1_epi8(stencilWriteValue));
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i += 16;
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}
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if (!depthTest && writeDepth)
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while (i < x)
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stencilLine[i++] = stencilWriteValue;
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}
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if (!(OptT::Flags & SWTRI_DepthTest) && (OptT::Flags & SWTRI_WriteDepth))
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{
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for (int i = xstart; i < x; i++)
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{
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@ -245,16 +292,16 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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}
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}
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if (depthTest && stencilTest)
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if ((OptT::Flags & SWTRI_DepthTest) && (OptT::Flags & SWTRI_StencilTest))
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{
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int xendsse = x + ((xend - x) / 4);
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__m128 mposXW = _mm_add_ps(_mm_set1_ps(posXW), mfirstStepXW);
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while ((_mm_movemask_ps(_mm_cmple_ps(_mm_loadu_ps(zbufferLine + x), mposXW)) == 0 ||
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while (x < xendsse &&
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(_mm_movemask_ps(_mm_cmple_ps(_mm_loadu_ps(zbufferLine + x), mposXW)) == 0 ||
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stencilLine[x] != stencilTestValue ||
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stencilLine[x + 1] != stencilTestValue ||
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stencilLine[x + 2] != stencilTestValue ||
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stencilLine[x + 3] != stencilTestValue) &&
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x < xendsse)
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stencilLine[x + 3] != stencilTestValue))
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{
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mposXW = _mm_add_ps(mposXW, mstepXW);
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x += 4;
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@ -267,11 +314,11 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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x++;
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}
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}
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else if (depthTest)
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else if (OptT::Flags & SWTRI_DepthTest)
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{
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int xendsse = x + ((xend - x) / 4);
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__m128 mposXW = _mm_add_ps(_mm_set1_ps(posXW), mfirstStepXW);
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while (_mm_movemask_ps(_mm_cmple_ps(_mm_loadu_ps(zbufferLine + x), mposXW)) == 0 && x < xendsse)
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while (x < xendsse && _mm_movemask_ps(_mm_cmple_ps(_mm_loadu_ps(zbufferLine + x), mposXW)) == 0)
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{
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mposXW = _mm_add_ps(mposXW, mstepXW);
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x += 4;
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@ -284,11 +331,16 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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x++;
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}
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}
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else if (stencilTest)
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else if (OptT::Flags & SWTRI_StencilTest)
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{
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int xendsse = x + ((xend - x) / 16);
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while (x < xendsse && _mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((const __m128i*)&stencilLine[x]), _mm_set1_epi8(stencilTestValue))) == 0)
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{
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x += 16;
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}
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while (stencilLine[x] != stencilTestValue && x < xend)
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{
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posXW += stepXW;
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x++;
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}
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}
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@ -298,27 +350,27 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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{
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int xstart = x;
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if (depthTest && stencilTest)
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if ((OptT::Flags & SWTRI_DepthTest) && (OptT::Flags & SWTRI_StencilTest))
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{
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while (zbufferLine[x] <= posXW && stencilLine[x] == stencilTestValue && x < xend)
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{
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if (writeDepth)
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if (OptT::Flags & SWTRI_WriteDepth)
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zbufferLine[x] = posXW;
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posXW += stepXW;
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x++;
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}
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}
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else if (depthTest)
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else if (OptT::Flags & SWTRI_DepthTest)
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{
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while (zbufferLine[x] <= posXW && x < xend)
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{
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if (writeDepth)
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if (OptT::Flags & SWTRI_WriteDepth)
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zbufferLine[x] = posXW;
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posXW += stepXW;
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x++;
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}
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}
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else if (stencilTest)
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else if (OptT::Flags & SWTRI_StencilTest)
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{
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while (stencilLine[x] == stencilTestValue && x < xend)
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x++;
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@ -330,16 +382,16 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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if (x > xstart)
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{
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if (writeColor)
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if (OptT::Flags & SWTRI_WriteColor)
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drawfunc(y, xstart, x, args, thread);
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if (writeStencil)
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if (OptT::Flags & SWTRI_WriteStencil)
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{
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for (int i = xstart; i < x; i++)
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stencilLine[i] = stencilWriteValue;
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}
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if (!depthTest && writeDepth)
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if (!(OptT::Flags & SWTRI_DepthTest) && (OptT::Flags & SWTRI_WriteDepth))
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{
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for (int i = xstart; i < x; i++)
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{
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@ -349,7 +401,7 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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}
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}
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if (depthTest && stencilTest)
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if ((OptT::Flags & SWTRI_DepthTest) && (OptT::Flags & SWTRI_StencilTest))
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{
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while ((zbufferLine[x] > posXW || stencilLine[x] != stencilTestValue) && x < xend)
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{
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@ -357,7 +409,7 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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x++;
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}
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}
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else if (depthTest)
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else if (OptT::Flags & SWTRI_DepthTest)
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{
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while (zbufferLine[x] > posXW && x < xend)
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{
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@ -365,11 +417,10 @@ void ScreenTriangle::Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadDat
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x++;
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}
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}
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else if (stencilTest)
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else if (OptT::Flags & SWTRI_StencilTest)
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{
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while (stencilLine[x] != stencilTestValue && x < xend)
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{
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posXW += stepXW;
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x++;
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}
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}
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@ -2164,4 +2215,40 @@ void(*ScreenTriangle::RectDrawers32[])(const void *, int, int, int, const RectDr
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&DrawRect32<TriScreenDrawerModes::StyleAddShadedTranslated>
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};
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void(*ScreenTriangle::TriangleDrawers[])(const TriDrawTriangleArgs *args, PolyTriangleThreadData *thread, int16_t *edges, int topY, int bottomY) =
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{
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt4>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt5>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt6>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt7>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt8>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt9>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt10>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt11>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt12>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt13>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt14>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt15>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt16>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt17>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt18>,
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt19>,
|
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt20>,
|
||||
&DrawTriangle<TriScreenDrawerModes::TriangleOpt21>,
|
||||
&DrawTriangle<TriScreenDrawerModes::TriangleOpt22>,
|
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&DrawTriangle<TriScreenDrawerModes::TriangleOpt23>,
|
||||
&DrawTriangle<TriScreenDrawerModes::TriangleOpt24>,
|
||||
&DrawTriangle<TriScreenDrawerModes::TriangleOpt25>,
|
||||
&DrawTriangle<TriScreenDrawerModes::TriangleOpt26>,
|
||||
&DrawTriangle<TriScreenDrawerModes::TriangleOpt27>,
|
||||
&DrawTriangle<TriScreenDrawerModes::TriangleOpt28>,
|
||||
&DrawTriangle<TriScreenDrawerModes::TriangleOpt29>,
|
||||
&DrawTriangle<TriScreenDrawerModes::TriangleOpt30>,
|
||||
&DrawTriangle<TriScreenDrawerModes::TriangleOpt31>
|
||||
};
|
||||
|
||||
int ScreenTriangle::FuzzStart = 0;
|
||||
|
|
|
|||
|
|
@ -142,6 +142,8 @@ class ScreenTriangle
|
|||
public:
|
||||
static void Draw(const TriDrawTriangleArgs *args, PolyTriangleThreadData *thread);
|
||||
|
||||
static void(*TriangleDrawers[])(const TriDrawTriangleArgs *args, PolyTriangleThreadData *thread, int16_t *edges, int topY, int bottomY);
|
||||
|
||||
static void(*SpanDrawers8[])(int y, int x0, int x1, const TriDrawTriangleArgs *args, PolyTriangleThreadData *thread);
|
||||
static void(*SpanDrawers32[])(int y, int x0, int x1, const TriDrawTriangleArgs *args, PolyTriangleThreadData *thread);
|
||||
static void(*RectDrawers8[])(const void *, int, int, int, const RectDrawArgs *, PolyTriangleThreadData *);
|
||||
|
|
@ -216,4 +218,42 @@ namespace TriScreenDrawerModes
|
|||
11, 6, 6, 11, 15, 6, 6, 11, 15, 18,
|
||||
21, 6, 6, 6, 6, 11, 6, 6, 11, 6,
|
||||
};
|
||||
|
||||
enum SWTriangleFlags
|
||||
{
|
||||
SWTRI_DepthTest = 1,
|
||||
SWTRI_StencilTest = 2,
|
||||
SWTRI_WriteColor = 4,
|
||||
SWTRI_WriteDepth = 8,
|
||||
SWTRI_WriteStencil = 16
|
||||
};
|
||||
|
||||
struct TriangleOpt4 { static const int Flags = 4; };
|
||||
struct TriangleOpt5 { static const int Flags = 5; };
|
||||
struct TriangleOpt6 { static const int Flags = 6; };
|
||||
struct TriangleOpt7 { static const int Flags = 7; };
|
||||
struct TriangleOpt8 { static const int Flags = 8; };
|
||||
struct TriangleOpt9 { static const int Flags = 9; };
|
||||
struct TriangleOpt10 { static const int Flags = 10; };
|
||||
struct TriangleOpt11 { static const int Flags = 11; };
|
||||
struct TriangleOpt12 { static const int Flags = 12; };
|
||||
struct TriangleOpt13 { static const int Flags = 13; };
|
||||
struct TriangleOpt14 { static const int Flags = 14; };
|
||||
struct TriangleOpt15 { static const int Flags = 15; };
|
||||
struct TriangleOpt16 { static const int Flags = 16; };
|
||||
struct TriangleOpt17 { static const int Flags = 17; };
|
||||
struct TriangleOpt18 { static const int Flags = 18; };
|
||||
struct TriangleOpt19 { static const int Flags = 19; };
|
||||
struct TriangleOpt20 { static const int Flags = 20; };
|
||||
struct TriangleOpt21 { static const int Flags = 21; };
|
||||
struct TriangleOpt22 { static const int Flags = 22; };
|
||||
struct TriangleOpt23 { static const int Flags = 23; };
|
||||
struct TriangleOpt24 { static const int Flags = 24; };
|
||||
struct TriangleOpt25 { static const int Flags = 25; };
|
||||
struct TriangleOpt26 { static const int Flags = 26; };
|
||||
struct TriangleOpt27 { static const int Flags = 27; };
|
||||
struct TriangleOpt28 { static const int Flags = 28; };
|
||||
struct TriangleOpt29 { static const int Flags = 29; };
|
||||
struct TriangleOpt30 { static const int Flags = 30; };
|
||||
struct TriangleOpt31 { static const int Flags = 31; };
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue