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909 lines
30 KiB
C++
909 lines
30 KiB
C++
/*
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** DrawTriangle code generation
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** Copyright (c) 2016 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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**
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*/
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#include "precomp.h"
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#include "timestamp.h"
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#include "fixedfunction/drawtrianglecodegen.h"
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#include "ssa/ssa_function.h"
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#include "ssa/ssa_scope.h"
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#include "ssa/ssa_for_block.h"
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#include "ssa/ssa_if_block.h"
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#include "ssa/ssa_stack.h"
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#include "ssa/ssa_function.h"
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#include "ssa/ssa_struct_type.h"
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#include "ssa/ssa_value.h"
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void DrawTriangleCodegen::Generate(TriDrawVariant variant, TriBlendMode blendmode, bool truecolor, SSAValue args, SSAValue thread_data)
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{
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this->variant = variant;
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this->blendmode = blendmode;
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this->truecolor = truecolor;
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LoadArgs(args, thread_data);
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Setup();
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LoopBlockY();
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}
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SSAInt DrawTriangleCodegen::FloatTo28_4(SSAFloat v)
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{
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// SSAInt(SSAFloat::round(16.0f * v), false);
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SSAInt a = SSAInt(v * 32.0f, false);
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return (a + (a.ashr(31) | SSAInt(1))).ashr(1);
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}
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void DrawTriangleCodegen::Setup()
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{
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int pixelsize = truecolor ? 4 : 1;
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// 28.4 fixed-point coordinates
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Y1 = FloatTo28_4(v1.y);
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Y2 = FloatTo28_4(v2.y);
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Y3 = FloatTo28_4(v3.y);
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X1 = FloatTo28_4(v1.x);
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X2 = FloatTo28_4(v2.x);
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X3 = FloatTo28_4(v3.x);
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// Deltas
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DX12 = X1 - X2;
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DX23 = X2 - X3;
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DX31 = X3 - X1;
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DY12 = Y1 - Y2;
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DY23 = Y2 - Y3;
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DY31 = Y3 - Y1;
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// Fixed-point deltas
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FDX12 = DX12 << 4;
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FDX23 = DX23 << 4;
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FDX31 = DX31 << 4;
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FDY12 = DY12 << 4;
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FDY23 = DY23 << 4;
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FDY31 = DY31 << 4;
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// Bounding rectangle
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minx = SSAInt::MAX((SSAInt::MIN(SSAInt::MIN(X1, X2), X3) + 0xF).ashr(4), clipleft);
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maxx = SSAInt::MIN((SSAInt::MAX(SSAInt::MAX(X1, X2), X3) + 0xF).ashr(4), clipright - 1);
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miny = SSAInt::MAX((SSAInt::MIN(SSAInt::MIN(Y1, Y2), Y3) + 0xF).ashr(4), cliptop);
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maxy = SSAInt::MIN((SSAInt::MAX(SSAInt::MAX(Y1, Y2), Y3) + 0xF).ashr(4), clipbottom - 1);
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SSAIfBlock if0;
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if0.if_block(minx >= maxx || miny >= maxy);
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if0.end_retvoid();
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// Start in corner of 8x8 block
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minx = minx & ~(q - 1);
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miny = miny & ~(q - 1);
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dest = dest[miny * pitch * pixelsize];
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subsectorGBuffer = subsectorGBuffer[miny * pitch];
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// Half-edge constants
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C1 = DY12 * X1 - DX12 * Y1;
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C2 = DY23 * X2 - DX23 * Y2;
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C3 = DY31 * X3 - DX31 * Y3;
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// Correct for fill convention
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SSAIfBlock if1;
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if1.if_block(DY12 < SSAInt(0) || (DY12 == SSAInt(0) && DX12 > SSAInt(0)));
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stack_C1.store(C1 + 1);
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if1.else_block();
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stack_C1.store(C1);
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if1.end_block();
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C1 = stack_C1.load();
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SSAIfBlock if2;
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if2.if_block(DY23 < SSAInt(0) || (DY23 == SSAInt(0) && DX23 > SSAInt(0)));
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stack_C2.store(C2 + 1);
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if2.else_block();
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stack_C2.store(C2);
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if2.end_block();
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C2 = stack_C2.load();
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SSAIfBlock if3;
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if3.if_block(DY31 < SSAInt(0) || (DY31 == SSAInt(0) && DX31 > SSAInt(0)));
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stack_C3.store(C3 + 1);
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if3.else_block();
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stack_C3.store(C3);
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if3.end_block();
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C3 = stack_C3.load();
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// Gradients
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v1.x = SSAFloat(X1) * 0.0625f;
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v2.x = SSAFloat(X2) * 0.0625f;
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v3.x = SSAFloat(X3) * 0.0625f;
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v1.y = SSAFloat(Y1) * 0.0625f;
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v2.y = SSAFloat(Y2) * 0.0625f;
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v3.y = SSAFloat(Y3) * 0.0625f;
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gradWX = gradx(v1.x, v1.y, v2.x, v2.y, v3.x, v3.y, v1.w, v2.w, v3.w);
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gradWY = grady(v1.x, v1.y, v2.x, v2.y, v3.x, v3.y, v1.w, v2.w, v3.w);
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stack_posy_w.store(v1.w + gradWX * (SSAFloat(minx) - v1.x) + gradWY * (SSAFloat(miny) - v1.y));
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for (int i = 0; i < TriVertex::NumVarying; i++)
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{
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gradVaryingX[i] = gradx(v1.x, v1.y, v2.x, v2.y, v3.x, v3.y, v1.varying[i] * v1.w, v2.varying[i] * v2.w, v3.varying[i] * v3.w);
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gradVaryingY[i] = grady(v1.x, v1.y, v2.x, v2.y, v3.x, v3.y, v1.varying[i] * v1.w, v2.varying[i] * v2.w, v3.varying[i] * v3.w);
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stack_posy_varying[i].store(v1.varying[i] * v1.w + gradVaryingX[i] * (SSAFloat(minx) - v1.x) + gradVaryingY[i] * (SSAFloat(miny) - v1.y));
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}
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gradWX = gradWX * (float)q;
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gradWY = gradWY * (float)q;
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for (int i = 0; i < TriVertex::NumVarying; i++)
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{
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gradVaryingX[i] = gradVaryingX[i] * (float)q;
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gradVaryingY[i] = gradVaryingY[i] * (float)q;
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}
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}
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SSAFloat DrawTriangleCodegen::gradx(SSAFloat x0, SSAFloat y0, SSAFloat x1, SSAFloat y1, SSAFloat x2, SSAFloat y2, SSAFloat c0, SSAFloat c1, SSAFloat c2)
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{
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SSAFloat top = (c1 - c2) * (y0 - y2) - (c0 - c2) * (y1 - y2);
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SSAFloat bottom = (x1 - x2) * (y0 - y2) - (x0 - x2) * (y1 - y2);
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return top / bottom;
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}
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SSAFloat DrawTriangleCodegen::grady(SSAFloat x0, SSAFloat y0, SSAFloat x1, SSAFloat y1, SSAFloat x2, SSAFloat y2, SSAFloat c0, SSAFloat c1, SSAFloat c2)
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{
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SSAFloat top = (c1 - c2) * (x0 - x2) - (c0 - c2) * (x1 - x2);
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SSAFloat bottom = (x0 - x2) * (y1 - y2) - (x1 - x2) * (y0 - y2);
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return top / bottom;
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}
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void DrawTriangleCodegen::LoopBlockY()
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{
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int pixelsize = truecolor ? 4 : 1;
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SSAInt blocks_skipped = skipped_by_thread(miny / q, thread);
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stack_y.store(miny + blocks_skipped * q);
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stack_dest.store(dest[blocks_skipped * q * pitch * pixelsize]);
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stack_subsectorGBuffer.store(subsectorGBuffer[blocks_skipped * q * pitch]);
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stack_posy_w.store(stack_posy_w.load() + gradWY * blocks_skipped);
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for (int i = 0; i < TriVertex::NumVarying; i++)
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stack_posy_varying[i].store(stack_posy_varying[i].load() + gradVaryingY[i] * blocks_skipped);
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SSAForBlock loop;
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y = stack_y.load();
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dest = stack_dest.load();
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subsectorGBuffer = stack_subsectorGBuffer.load();
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posy_w = stack_posy_w.load();
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for (int i = 0; i < TriVertex::NumVarying; i++)
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posy_varying[i] = stack_posy_varying[i].load();
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loop.loop_block(y < maxy, 0);
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{
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LoopBlockX();
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stack_posy_w.store(posy_w + gradWY * thread.num_cores);
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for (int i = 0; i < TriVertex::NumVarying; i++)
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stack_posy_varying[i].store(posy_varying[i] + gradVaryingY[i] * thread.num_cores);
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stack_dest.store(dest[q * pitch * pixelsize * thread.num_cores]);
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stack_subsectorGBuffer.store(subsectorGBuffer[q * pitch * thread.num_cores]);
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stack_y.store(y + thread.num_cores * q);
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}
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loop.end_block();
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}
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void DrawTriangleCodegen::LoopBlockX()
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{
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stack_x.store(minx);
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stack_posx_w.store(posy_w);
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for (int i = 0; i < TriVertex::NumVarying; i++)
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stack_posx_varying[i].store(stack_posy_varying[i].load());
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SSAForBlock loop;
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x = stack_x.load();
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posx_w = stack_posx_w.load();
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for (int i = 0; i < TriVertex::NumVarying; i++)
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posx_varying[i] = stack_posx_varying[i].load();
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loop.loop_block(x < maxx, 0);
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{
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// Corners of block
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x0 = x << 4;
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x1 = (x + q - 1) << 4;
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y0 = y << 4;
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y1 = (y + q - 1) << 4;
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// Evaluate half-space functions
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SSABool a00 = C1 + DX12 * y0 - DY12 * x0 > SSAInt(0);
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SSABool a10 = C1 + DX12 * y0 - DY12 * x1 > SSAInt(0);
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SSABool a01 = C1 + DX12 * y1 - DY12 * x0 > SSAInt(0);
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SSABool a11 = C1 + DX12 * y1 - DY12 * x1 > SSAInt(0);
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SSAInt a = (a00.zext_int() << 0) | (a10.zext_int() << 1) | (a01.zext_int() << 2) | (a11.zext_int() << 3);
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SSABool b00 = C2 + DX23 * y0 - DY23 * x0 > SSAInt(0);
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SSABool b10 = C2 + DX23 * y0 - DY23 * x1 > SSAInt(0);
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SSABool b01 = C2 + DX23 * y1 - DY23 * x0 > SSAInt(0);
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SSABool b11 = C2 + DX23 * y1 - DY23 * x1 > SSAInt(0);
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SSAInt b = (b00.zext_int() << 0) | (b10.zext_int() << 1) | (b01.zext_int() << 2) | (b11.zext_int() << 3);
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SSABool c00 = C3 + DX31 * y0 - DY31 * x0 > SSAInt(0);
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SSABool c10 = C3 + DX31 * y0 - DY31 * x1 > SSAInt(0);
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SSABool c01 = C3 + DX31 * y1 - DY31 * x0 > SSAInt(0);
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SSABool c11 = C3 + DX31 * y1 - DY31 * x1 > SSAInt(0);
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SSAInt c = (c00.zext_int() << 0) | (c10.zext_int() << 1) | (c01.zext_int() << 2) | (c11.zext_int() << 3);
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// Skip block when outside an edge
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SSAIfBlock branch;
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branch.if_block(!(a == SSAInt(0) || b == SSAInt(0) || c == SSAInt(0)));
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// Check if block needs clipping
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SSABool clipneeded = x < clipleft || (x + q) > clipright || y < cliptop || (y + q) > clipbottom;
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SetupAffineBlock();
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SetStencilBlock(x / 8 + y / 8 * stencilPitch);
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SSABool covered = a == SSAInt(0xF) && b == SSAInt(0xF) && c == SSAInt(0xF) && !clipneeded && StencilIsSingleValue();
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// Accept whole block when totally covered
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SSAIfBlock branch_covered;
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branch_covered.if_block(covered);
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{
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LoopFullBlock();
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}
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branch_covered.else_block();
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{
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LoopPartialBlock();
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}
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branch_covered.end_block();
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branch.end_block();
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stack_posx_w.store(posx_w + gradWX);
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for (int i = 0; i < TriVertex::NumVarying; i++)
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stack_posx_varying[i].store(posx_varying[i] + gradVaryingX[i]);
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stack_x.store(x + q);
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}
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loop.end_block();
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}
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void DrawTriangleCodegen::SetupAffineBlock()
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{
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// Calculate varying variables for affine block
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SSAVec4f rcpW = SSAVec4f::rcp(SSAVec4f(posx_w, posx_w + gradWX, posx_w + gradWY, posx_w + gradWX + gradWY));
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for (int i = 0; i < TriVertex::NumVarying; i++)
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{
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// Top left, top right, bottom left, bottom right:
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SSAVec4f varying = SSAVec4f(posx_varying[i], posx_varying[i] + gradVaryingX[i], posx_varying[i] + gradVaryingY[i], posx_varying[i] + gradVaryingX[i] + gradVaryingY[i]) * rcpW;
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SSAFloat startStepX = (varying[1] - varying[0]) * (1.0f / q);
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SSAFloat endStepX = (varying[3] - varying[2]) * (1.0f / q);
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SSAFloat incrStepX = (endStepX - startStepX) * (1.0f / q);
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SSAFloat stepY = (varying[2] - varying[0]) * (1.0f / q);
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SSAVec4i ints = SSAVec4i(SSAVec4f(varying[0], stepY, startStepX, incrStepX) * (float)0x01000000) << 8;
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varyingPos[i] = ints[0];
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varyingStepY[i] = ints[1];
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varyingStartStepX[i] = ints[2];
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varyingIncrStepX[i] = ints[3];
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}
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SSAFloat globVis = SSAFloat(1706.0f);
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SSAFloat vis = globVis / rcpW[0];
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SSAFloat shade = 64.0f - (SSAFloat(light * 255 / 256) + 12.0f) * 32.0f / 128.0f;
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SSAFloat lightscale = SSAFloat::clamp((shade - SSAFloat::MIN(SSAFloat(24.0f), vis)) / 32.0f, SSAFloat(0.0f), SSAFloat(31.0f / 32.0f));
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SSAInt diminishedlight = SSAInt(SSAFloat::clamp((1.0f - lightscale) * 256.0f + 0.5f, SSAFloat(0.0f), SSAFloat(256.0f)), false);
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if (!truecolor)
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{
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SSAInt diminishedindex = SSAInt(lightscale * 32.0f, false);
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SSAInt lightindex = SSAInt::MIN((256 - light) * 32 / 256, SSAInt(31));
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SSAInt colormapindex = is_fixed_light.select(lightindex, diminishedindex);
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currentcolormap = Colormaps[colormapindex << 8];
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}
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else
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{
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currentlight = is_fixed_light.select(light, diminishedlight);
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}
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}
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void DrawTriangleCodegen::LoopFullBlock()
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{
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SSAIfBlock branch_stenciltest;
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if (variant == TriDrawVariant::DrawSubsector || variant == TriDrawVariant::FillSubsector || variant == TriDrawVariant::FuzzSubsector || variant == TriDrawVariant::StencilClose)
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{
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branch_stenciltest.if_block(SSABool::compare_uge(StencilGetSingle(), stencilTestValue));
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}
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else
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{
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branch_stenciltest.if_block(StencilGetSingle() == stencilTestValue);
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}
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if (variant == TriDrawVariant::Stencil)
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{
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StencilClear(stencilWriteValue);
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}
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else if (variant == TriDrawVariant::StencilClose)
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{
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StencilClear(stencilWriteValue);
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for (int iy = 0; iy < q; iy++)
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{
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SSAIntPtr subsectorbuffer = subsectorGBuffer[x + iy * pitch];
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for (int ix = 0; ix < q; ix += 4)
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{
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subsectorbuffer[ix].store_unaligned_vec4i(SSAVec4i(subsectorDepth));
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}
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}
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}
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else
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{
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int pixelsize = truecolor ? 4 : 1;
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SSAInt varyingLine[TriVertex::NumVarying];
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SSAInt varyingStepX[TriVertex::NumVarying];
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for (int i = 0; i < TriVertex::NumVarying; i++)
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{
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varyingLine[i] = varyingPos[i];
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varyingStepX[i] = varyingStartStepX[i];
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}
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for (int iy = 0; iy < q; iy++)
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{
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SSAUBytePtr buffer = dest[(x + iy * pitch) * pixelsize];
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SSAIntPtr subsectorbuffer = subsectorGBuffer[x + iy * pitch];
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SSAInt varying[TriVertex::NumVarying];
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for (int i = 0; i < TriVertex::NumVarying; i++)
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varying[i] = varyingLine[i];
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for (int ix = 0; ix < q; ix += 4)
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{
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SSAUBytePtr buf = buffer[ix * pixelsize];
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if (truecolor)
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{
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SSAVec16ub pixels16 = buf.load_unaligned_vec16ub(false);
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SSAVec8s pixels8hi = SSAVec8s::extendhi(pixels16);
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SSAVec8s pixels8lo = SSAVec8s::extendlo(pixels16);
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SSAVec4i pixels[4] =
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{
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SSAVec4i::extendlo(pixels8lo),
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SSAVec4i::extendhi(pixels8lo),
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SSAVec4i::extendlo(pixels8hi),
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SSAVec4i::extendhi(pixels8hi)
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};
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for (int sse = 0; sse < 4; sse++)
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{
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if (variant == TriDrawVariant::DrawSubsector || variant == TriDrawVariant::FillSubsector || variant == TriDrawVariant::FuzzSubsector)
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{
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SSABool subsectorTest = subsectorbuffer[ix].load(true) >= subsectorDepth;
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pixels[sse] = subsectorTest.select(ProcessPixel32(pixels[sse], varying), pixels[sse]);
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}
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else
|
|
{
|
|
pixels[sse] = ProcessPixel32(pixels[sse], varying);
|
|
}
|
|
|
|
for (int i = 0; i < TriVertex::NumVarying; i++)
|
|
varying[i] = varying[i] + varyingStepX[i];
|
|
}
|
|
|
|
buf.store_unaligned_vec16ub(SSAVec16ub(SSAVec8s(pixels[0], pixels[1]), SSAVec8s(pixels[2], pixels[3])));
|
|
}
|
|
else
|
|
{
|
|
SSAVec4i pixelsvec = buf.load_vec4ub(false);
|
|
SSAInt pixels[4] =
|
|
{
|
|
pixelsvec[0],
|
|
pixelsvec[1],
|
|
pixelsvec[2],
|
|
pixelsvec[3]
|
|
};
|
|
|
|
for (int sse = 0; sse < 4; sse++)
|
|
{
|
|
if (variant == TriDrawVariant::DrawSubsector || variant == TriDrawVariant::FillSubsector || variant == TriDrawVariant::FuzzSubsector)
|
|
{
|
|
SSABool subsectorTest = subsectorbuffer[ix].load(true) >= subsectorDepth;
|
|
pixels[sse] = subsectorTest.select(ProcessPixel8(pixels[sse], varying), pixels[sse]);
|
|
}
|
|
else
|
|
{
|
|
pixels[sse] = ProcessPixel8(pixels[sse], varying);
|
|
}
|
|
|
|
for (int i = 0; i < TriVertex::NumVarying; i++)
|
|
varying[i] = varying[i] + varyingStepX[i];
|
|
}
|
|
|
|
buf.store_vec4ub(SSAVec4i(pixels[0], pixels[1], pixels[2], pixels[3]));
|
|
}
|
|
|
|
if (variant != TriDrawVariant::DrawSubsector && variant != TriDrawVariant::FillSubsector && variant != TriDrawVariant::FuzzSubsector)
|
|
subsectorbuffer[ix].store_unaligned_vec4i(SSAVec4i(subsectorDepth));
|
|
}
|
|
|
|
for (int i = 0; i < TriVertex::NumVarying; i++)
|
|
{
|
|
varyingLine[i] = varyingLine[i] + varyingStepY[i];
|
|
varyingStepX[i] = varyingStepX[i] + varyingIncrStepX[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
branch_stenciltest.end_block();
|
|
}
|
|
|
|
void DrawTriangleCodegen::LoopPartialBlock()
|
|
{
|
|
int pixelsize = truecolor ? 4 : 1;
|
|
|
|
stack_CY1.store(C1 + DX12 * y0 - DY12 * x0);
|
|
stack_CY2.store(C2 + DX23 * y0 - DY23 * x0);
|
|
stack_CY3.store(C3 + DX31 * y0 - DY31 * x0);
|
|
stack_iy.store(SSAInt(0));
|
|
stack_buffer.store(dest[x * pixelsize]);
|
|
stack_subsectorbuffer.store(subsectorGBuffer[x]);
|
|
for (int i = 0; i < TriVertex::NumVarying; i++)
|
|
{
|
|
stack_varyingLine[i].store(varyingPos[i]);
|
|
stack_varyingStep[i].store(varyingStartStepX[i]);
|
|
}
|
|
|
|
SSAForBlock loopy;
|
|
SSAInt iy = stack_iy.load();
|
|
SSAUBytePtr buffer = stack_buffer.load();
|
|
SSAIntPtr subsectorbuffer = stack_subsectorbuffer.load();
|
|
SSAInt CY1 = stack_CY1.load();
|
|
SSAInt CY2 = stack_CY2.load();
|
|
SSAInt CY3 = stack_CY3.load();
|
|
SSAInt varyingLine[TriVertex::NumVarying];
|
|
SSAInt varyingStep[TriVertex::NumVarying];
|
|
for (int i = 0; i < TriVertex::NumVarying; i++)
|
|
{
|
|
varyingLine[i] = stack_varyingLine[i].load();
|
|
varyingStep[i] = stack_varyingStep[i].load();
|
|
}
|
|
loopy.loop_block(iy < SSAInt(q), q);
|
|
{
|
|
for (int i = 0; i < TriVertex::NumVarying; i++)
|
|
stack_varying[i].store(varyingLine[i]);
|
|
|
|
stack_CX1.store(CY1);
|
|
stack_CX2.store(CY2);
|
|
stack_CX3.store(CY3);
|
|
stack_ix.store(SSAInt(0));
|
|
|
|
SSAForBlock loopx;
|
|
SSAInt ix = stack_ix.load();
|
|
SSAInt CX1 = stack_CX1.load();
|
|
SSAInt CX2 = stack_CX2.load();
|
|
SSAInt CX3 = stack_CX3.load();
|
|
SSAInt varying[TriVertex::NumVarying];
|
|
for (int i = 0; i < TriVertex::NumVarying; i++)
|
|
varying[i] = stack_varying[i].load();
|
|
loopx.loop_block(ix < SSAInt(q), q);
|
|
{
|
|
SSABool visible = (ix + x >= clipleft) && (ix + x < clipright) && (iy + y >= cliptop) && (iy + y < clipbottom);
|
|
SSABool covered = CX1 > SSAInt(0) && CX2 > SSAInt(0) && CX3 > SSAInt(0) && visible;
|
|
|
|
if (variant == TriDrawVariant::DrawSubsector || variant == TriDrawVariant::FillSubsector || variant == TriDrawVariant::FuzzSubsector)
|
|
{
|
|
covered = covered && SSABool::compare_uge(StencilGet(ix, iy), stencilTestValue) && subsectorbuffer[ix].load(true) >= subsectorDepth;
|
|
}
|
|
else if (variant == TriDrawVariant::StencilClose)
|
|
{
|
|
covered = covered && SSABool::compare_uge(StencilGet(ix, iy), stencilTestValue);
|
|
}
|
|
else
|
|
{
|
|
covered = covered && StencilGet(ix, iy) == stencilTestValue;
|
|
}
|
|
|
|
SSAIfBlock branch;
|
|
branch.if_block(covered);
|
|
{
|
|
if (variant == TriDrawVariant::Stencil)
|
|
{
|
|
StencilSet(ix, iy, stencilWriteValue);
|
|
}
|
|
else if (variant == TriDrawVariant::StencilClose)
|
|
{
|
|
StencilSet(ix, iy, stencilWriteValue);
|
|
subsectorbuffer[ix].store(subsectorDepth);
|
|
}
|
|
else
|
|
{
|
|
SSAUBytePtr buf = buffer[ix * pixelsize];
|
|
|
|
if (truecolor)
|
|
{
|
|
SSAVec4i bg = buf.load_vec4ub(false);
|
|
buf.store_vec4ub(ProcessPixel32(bg, varying));
|
|
}
|
|
else
|
|
{
|
|
SSAUByte bg = buf.load(false);
|
|
buf.store(ProcessPixel8(bg.zext_int(), varying).trunc_ubyte());
|
|
}
|
|
|
|
if (variant != TriDrawVariant::DrawSubsector && variant != TriDrawVariant::FillSubsector && variant != TriDrawVariant::FuzzSubsector)
|
|
subsectorbuffer[ix].store(subsectorDepth);
|
|
}
|
|
}
|
|
branch.end_block();
|
|
|
|
for (int i = 0; i < TriVertex::NumVarying; i++)
|
|
stack_varying[i].store(varying[i] + varyingStep[i]);
|
|
|
|
stack_CX1.store(CX1 - FDY12);
|
|
stack_CX2.store(CX2 - FDY23);
|
|
stack_CX3.store(CX3 - FDY31);
|
|
stack_ix.store(ix + 1);
|
|
}
|
|
loopx.end_block();
|
|
|
|
for (int i = 0; i < TriVertex::NumVarying; i++)
|
|
{
|
|
stack_varyingLine[i].store(varyingLine[i] + varyingStepY[i]);
|
|
stack_varyingStep[i].store(varyingStep[i] + varyingIncrStepX[i]);
|
|
}
|
|
|
|
stack_CY1.store(CY1 + FDX12);
|
|
stack_CY2.store(CY2 + FDX23);
|
|
stack_CY3.store(CY3 + FDX31);
|
|
stack_buffer.store(buffer[pitch * pixelsize]);
|
|
stack_subsectorbuffer.store(subsectorbuffer[pitch]);
|
|
stack_iy.store(iy + 1);
|
|
}
|
|
loopy.end_block();
|
|
}
|
|
|
|
SSAVec4i DrawTriangleCodegen::TranslateSample32(SSAInt uvoffset)
|
|
{
|
|
if (variant == TriDrawVariant::FillNormal || variant == TriDrawVariant::FillSubsector || variant == TriDrawVariant::FuzzSubsector)
|
|
return translation[color * 4].load_vec4ub(true);
|
|
else
|
|
return translation[texturePixels[uvoffset].load(true).zext_int() * 4].load_vec4ub(true);
|
|
}
|
|
|
|
SSAInt DrawTriangleCodegen::TranslateSample8(SSAInt uvoffset)
|
|
{
|
|
if (variant == TriDrawVariant::FillNormal || variant == TriDrawVariant::FillSubsector || variant == TriDrawVariant::FuzzSubsector)
|
|
return translation[color].load(true).zext_int();
|
|
else
|
|
return translation[texturePixels[uvoffset].load(true).zext_int()].load(true).zext_int();
|
|
}
|
|
|
|
SSAVec4i DrawTriangleCodegen::Sample32(SSAInt uvoffset)
|
|
{
|
|
if (variant == TriDrawVariant::FillNormal || variant == TriDrawVariant::FillSubsector || variant == TriDrawVariant::FuzzSubsector)
|
|
return SSAVec4i::unpack(color);
|
|
else
|
|
return texturePixels[uvoffset * 4].load_vec4ub(true);
|
|
}
|
|
|
|
SSAInt DrawTriangleCodegen::Sample8(SSAInt uvoffset)
|
|
{
|
|
if (variant == TriDrawVariant::FillNormal || variant == TriDrawVariant::FillSubsector || variant == TriDrawVariant::FuzzSubsector)
|
|
return color;
|
|
else
|
|
return texturePixels[uvoffset].load(true).zext_int();
|
|
}
|
|
|
|
SSAInt DrawTriangleCodegen::Shade8(SSAInt c)
|
|
{
|
|
return currentcolormap[c].load(true).zext_int();
|
|
}
|
|
|
|
SSAVec4i DrawTriangleCodegen::ProcessPixel32(SSAVec4i bg, SSAInt *varying)
|
|
{
|
|
SSAInt ufrac = varying[0];
|
|
SSAInt vfrac = varying[1];
|
|
|
|
SSAInt upos = ((ufrac >> 16) * textureWidth) >> 16;
|
|
SSAInt vpos = ((vfrac >> 16) * textureHeight) >> 16;
|
|
SSAInt uvoffset = upos * textureHeight + vpos;
|
|
|
|
SSAVec4i fg;
|
|
SSAVec4i output;
|
|
|
|
switch (blendmode)
|
|
{
|
|
default:
|
|
case TriBlendMode::Copy:
|
|
fg = Sample32(uvoffset);
|
|
output = blend_copy(shade_bgra_simple(fg, currentlight));
|
|
break;
|
|
case TriBlendMode::AlphaBlend:
|
|
fg = Sample32(uvoffset);
|
|
output = blend_alpha_blend(shade_bgra_simple(fg, currentlight), bg);
|
|
break;
|
|
case TriBlendMode::AddSolid:
|
|
fg = Sample32(uvoffset);
|
|
output = blend_add(shade_bgra_simple(fg, currentlight), bg, srcalpha, destalpha);
|
|
break;
|
|
case TriBlendMode::Add:
|
|
fg = Sample32(uvoffset);
|
|
output = blend_add(shade_bgra_simple(fg, currentlight), bg, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
break;
|
|
case TriBlendMode::Sub:
|
|
fg = Sample32(uvoffset);
|
|
output = blend_sub(shade_bgra_simple(fg, currentlight), bg, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
break;
|
|
case TriBlendMode::RevSub:
|
|
fg = Sample32(uvoffset);
|
|
output = blend_revsub(shade_bgra_simple(fg, currentlight), bg, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
break;
|
|
case TriBlendMode::Stencil:
|
|
fg = Sample32(uvoffset);
|
|
output = blend_stencil(shade_bgra_simple(SSAVec4i::unpack(color), currentlight), fg[3], bg, srcalpha, destalpha);
|
|
break;
|
|
case TriBlendMode::Shaded:
|
|
output = blend_stencil(shade_bgra_simple(SSAVec4i::unpack(color), currentlight), Sample8(uvoffset), bg, srcalpha, destalpha);
|
|
break;
|
|
case TriBlendMode::TranslateCopy:
|
|
fg = TranslateSample32(uvoffset);
|
|
output = blend_copy(shade_bgra_simple(fg, currentlight));
|
|
break;
|
|
case TriBlendMode::TranslateAlphaBlend:
|
|
fg = TranslateSample32(uvoffset);
|
|
output = blend_alpha_blend(shade_bgra_simple(fg, currentlight), bg);
|
|
break;
|
|
case TriBlendMode::TranslateAdd:
|
|
fg = TranslateSample32(uvoffset);
|
|
output = blend_add(shade_bgra_simple(fg, currentlight), bg, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
break;
|
|
case TriBlendMode::TranslateSub:
|
|
fg = TranslateSample32(uvoffset);
|
|
output = blend_sub(shade_bgra_simple(fg, currentlight), bg, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
break;
|
|
case TriBlendMode::TranslateRevSub:
|
|
fg = TranslateSample32(uvoffset);
|
|
output = blend_revsub(shade_bgra_simple(fg, currentlight), bg, srcalpha, calc_blend_bgalpha(fg, destalpha));
|
|
break;
|
|
case TriBlendMode::AddSrcColorOneMinusSrcColor:
|
|
fg = Sample32(uvoffset);
|
|
output = blend_add_srccolor_oneminussrccolor(shade_bgra_simple(fg, currentlight), bg);
|
|
break;
|
|
}
|
|
|
|
return output;
|
|
}
|
|
|
|
SSAVec4i DrawTriangleCodegen::ToBgra(SSAInt index)
|
|
{
|
|
SSAVec4i c = BaseColors[index * 4].load_vec4ub(true);
|
|
c = c.insert(3, 255);
|
|
return c;
|
|
}
|
|
|
|
SSAInt DrawTriangleCodegen::ToPal8(SSAVec4i c)
|
|
{
|
|
return RGB32k[((c[2] >> 3) * 32 + (c[1] >> 3)) * 32 + (c[0] >> 3)].load(true).zext_int();
|
|
}
|
|
|
|
SSAInt DrawTriangleCodegen::ProcessPixel8(SSAInt bg, SSAInt *varying)
|
|
{
|
|
SSAInt ufrac = varying[0];
|
|
SSAInt vfrac = varying[1];
|
|
|
|
SSAInt upos = ((ufrac >> 16) * textureWidth) >> 16;
|
|
SSAInt vpos = ((vfrac >> 16) * textureHeight) >> 16;
|
|
SSAInt uvoffset = upos * textureHeight + vpos;
|
|
|
|
SSAVec4i fg;
|
|
SSAInt alpha, inv_alpha;
|
|
SSAInt output;
|
|
SSAInt palindex;
|
|
|
|
switch (blendmode)
|
|
{
|
|
default:
|
|
case TriBlendMode::Copy:
|
|
output = Shade8(Sample8(uvoffset));
|
|
break;
|
|
case TriBlendMode::AlphaBlend:
|
|
palindex = Sample8(uvoffset);
|
|
output = Shade8(palindex);
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
case TriBlendMode::AddSolid:
|
|
palindex = Sample8(uvoffset);
|
|
fg = ToBgra(Shade8(palindex));
|
|
output = ToPal8(blend_add(fg, ToBgra(bg), srcalpha, destalpha));
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
case TriBlendMode::Add:
|
|
palindex = Sample8(uvoffset);
|
|
fg = ToBgra(Shade8(palindex));
|
|
output = ToPal8(blend_add(fg, ToBgra(bg), srcalpha, calc_blend_bgalpha(fg, destalpha)));
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
case TriBlendMode::Sub:
|
|
palindex = Sample8(uvoffset);
|
|
fg = ToBgra(Shade8(palindex));
|
|
output = ToPal8(blend_sub(fg, ToBgra(bg), srcalpha, calc_blend_bgalpha(fg, destalpha)));
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
case TriBlendMode::RevSub:
|
|
palindex = Sample8(uvoffset);
|
|
fg = ToBgra(Shade8(palindex));
|
|
output = ToPal8(blend_revsub(fg, ToBgra(bg), srcalpha, calc_blend_bgalpha(fg, destalpha)));
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
case TriBlendMode::Stencil:
|
|
output = ToPal8(blend_stencil(ToBgra(Shade8(color)), (Sample8(uvoffset) == SSAInt(0)).select(SSAInt(0), SSAInt(256)), ToBgra(bg), srcalpha, destalpha));
|
|
break;
|
|
case TriBlendMode::Shaded:
|
|
palindex = Sample8(uvoffset);
|
|
output = ToPal8(blend_stencil(ToBgra(Shade8(color)), palindex, ToBgra(bg), srcalpha, destalpha));
|
|
break;
|
|
case TriBlendMode::TranslateCopy:
|
|
palindex = TranslateSample8(uvoffset);
|
|
output = Shade8(palindex);
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
case TriBlendMode::TranslateAlphaBlend:
|
|
palindex = TranslateSample8(uvoffset);
|
|
output = Shade8(palindex);
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
case TriBlendMode::TranslateAdd:
|
|
palindex = TranslateSample8(uvoffset);
|
|
fg = ToBgra(Shade8(palindex));
|
|
output = ToPal8(blend_add(fg, ToBgra(bg), srcalpha, calc_blend_bgalpha(fg, destalpha)));
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
case TriBlendMode::TranslateSub:
|
|
palindex = TranslateSample8(uvoffset);
|
|
fg = ToBgra(Shade8(palindex));
|
|
output = ToPal8(blend_sub(fg, ToBgra(bg), srcalpha, calc_blend_bgalpha(fg, destalpha)));
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
case TriBlendMode::TranslateRevSub:
|
|
palindex = TranslateSample8(uvoffset);
|
|
fg = ToBgra(Shade8(palindex));
|
|
output = ToPal8(blend_revsub(fg, ToBgra(bg), srcalpha, calc_blend_bgalpha(fg, destalpha)));
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
case TriBlendMode::AddSrcColorOneMinusSrcColor:
|
|
palindex = Sample8(uvoffset);
|
|
fg = ToBgra(Shade8(palindex));
|
|
output = ToPal8(blend_add_srccolor_oneminussrccolor(fg, ToBgra(bg)));
|
|
output = (palindex == SSAInt(0)).select(bg, output);
|
|
break;
|
|
}
|
|
|
|
return output;
|
|
}
|
|
|
|
void DrawTriangleCodegen::SetStencilBlock(SSAInt block)
|
|
{
|
|
StencilBlock = stencilValues[block * 64];
|
|
StencilBlockMask = stencilMasks[block];
|
|
}
|
|
|
|
void DrawTriangleCodegen::StencilSet(SSAInt x, SSAInt y, SSAUByte value)
|
|
{
|
|
SSAInt mask = StencilBlockMask.load(false);
|
|
|
|
SSAIfBlock branchNeedsUpdate;
|
|
branchNeedsUpdate.if_block(!(mask == (SSAInt(0xffffff00) | value.zext_int())));
|
|
|
|
SSAIfBlock branchFirstSet;
|
|
branchFirstSet.if_block((mask & SSAInt(0xffffff00)) == SSAInt(0xffffff00));
|
|
{
|
|
SSAUByte val0 = mask.trunc_ubyte();
|
|
for (int i = 0; i < 8 * 8; i++)
|
|
StencilBlock[i].store(val0);
|
|
StencilBlockMask.store(SSAInt(0));
|
|
}
|
|
branchFirstSet.end_block();
|
|
|
|
StencilBlock[x + y * 8].store(value);
|
|
|
|
branchNeedsUpdate.end_block();
|
|
}
|
|
|
|
SSAUByte DrawTriangleCodegen::StencilGet(SSAInt x, SSAInt y)
|
|
{
|
|
return StencilIsSingleValue().select(StencilBlockMask.load(false).trunc_ubyte(), StencilBlock[x + y * 8].load(false));
|
|
}
|
|
|
|
SSAUByte DrawTriangleCodegen::StencilGetSingle()
|
|
{
|
|
return StencilBlockMask.load(false).trunc_ubyte();
|
|
}
|
|
|
|
void DrawTriangleCodegen::StencilClear(SSAUByte value)
|
|
{
|
|
StencilBlockMask.store(SSAInt(0xffffff00) | value.zext_int());
|
|
}
|
|
|
|
SSABool DrawTriangleCodegen::StencilIsSingleValue()
|
|
{
|
|
return (StencilBlockMask.load(false) & SSAInt(0xffffff00)) == SSAInt(0xffffff00);
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}
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void DrawTriangleCodegen::LoadArgs(SSAValue args, SSAValue thread_data)
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{
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dest = args[0][0].load(true);
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pitch = args[0][1].load(true);
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v1 = LoadTriVertex(args[0][2].load(true));
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v2 = LoadTriVertex(args[0][3].load(true));
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v3 = LoadTriVertex(args[0][4].load(true));
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clipleft = SSAInt(0);// args[0][5].load(true);
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clipright = args[0][6].load(true);
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cliptop = SSAInt(0);// args[0][7].load(true);
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clipbottom = args[0][8].load(true);
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texturePixels = args[0][9].load(true);
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textureWidth = args[0][10].load(true);
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textureHeight = args[0][11].load(true);
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translation = args[0][12].load(true);
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LoadUniforms(args[0][13].load(true));
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|
stencilValues = args[0][14].load(true);
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|
stencilMasks = args[0][15].load(true);
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|
stencilPitch = args[0][16].load(true);
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|
stencilTestValue = args[0][17].load(true);
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|
stencilWriteValue = args[0][18].load(true);
|
|
subsectorGBuffer = args[0][19].load(true);
|
|
if (!truecolor)
|
|
{
|
|
Colormaps = args[0][20].load(true);
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|
RGB32k = args[0][21].load(true);
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|
BaseColors = args[0][22].load(true);
|
|
}
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|
|
|
thread.core = thread_data[0][0].load(true);
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|
thread.num_cores = thread_data[0][1].load(true);
|
|
thread.pass_start_y = SSAInt(0);
|
|
thread.pass_end_y = SSAInt(32000);
|
|
}
|
|
|
|
SSATriVertex DrawTriangleCodegen::LoadTriVertex(SSAValue ptr)
|
|
{
|
|
SSATriVertex v;
|
|
v.x = ptr[0][0].load(true);
|
|
v.y = ptr[0][1].load(true);
|
|
v.z = ptr[0][2].load(true);
|
|
v.w = ptr[0][3].load(true);
|
|
for (int i = 0; i < TriVertex::NumVarying; i++)
|
|
v.varying[i] = ptr[0][4 + i].load(true);
|
|
return v;
|
|
}
|
|
|
|
void DrawTriangleCodegen::LoadUniforms(SSAValue uniforms)
|
|
{
|
|
light = uniforms[0][0].load(true);
|
|
subsectorDepth = uniforms[0][1].load(true);
|
|
color = uniforms[0][2].load(true);
|
|
srcalpha = uniforms[0][3].load(true);
|
|
destalpha = uniforms[0][4].load(true);
|
|
|
|
SSAShort light_alpha = uniforms[0][5].load(true);
|
|
SSAShort light_red = uniforms[0][6].load(true);
|
|
SSAShort light_green = uniforms[0][7].load(true);
|
|
SSAShort light_blue = uniforms[0][8].load(true);
|
|
SSAShort fade_alpha = uniforms[0][9].load(true);
|
|
SSAShort fade_red = uniforms[0][10].load(true);
|
|
SSAShort fade_green = uniforms[0][11].load(true);
|
|
SSAShort fade_blue = uniforms[0][12].load(true);
|
|
SSAShort desaturate = uniforms[0][13].load(true);
|
|
SSAInt flags = uniforms[0][14].load(true);
|
|
shade_constants.light = SSAVec4i(light_blue.zext_int(), light_green.zext_int(), light_red.zext_int(), light_alpha.zext_int());
|
|
shade_constants.fade = SSAVec4i(fade_blue.zext_int(), fade_green.zext_int(), fade_red.zext_int(), fade_alpha.zext_int());
|
|
shade_constants.desaturate = desaturate.zext_int();
|
|
|
|
is_simple_shade = (flags & TriUniforms::simple_shade) == SSAInt(TriUniforms::simple_shade);
|
|
is_nearest_filter = (flags & TriUniforms::nearest_filter) == SSAInt(TriUniforms::nearest_filter);
|
|
is_fixed_light = (flags & TriUniforms::fixed_light) == SSAInt(TriUniforms::fixed_light);
|
|
}
|