/*-------------------------------------------------------------------------
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* drawElements Quality Program Reference Renderer
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* -----------------------------------------------
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*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*//*!
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* \file
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* \brief Reference implementation for per-fragment operations.
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*//*--------------------------------------------------------------------*/
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#include "rrFragmentOperations.hpp"
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#include "tcuVectorUtil.hpp"
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#include "tcuTextureUtil.hpp"
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#include <limits>
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using tcu::IVec2;
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using tcu::Vec3;
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using tcu::Vec4;
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using tcu::IVec4;
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using tcu::UVec4;
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using tcu::min;
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using tcu::max;
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using tcu::clamp;
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using de::min;
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using de::max;
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using de::clamp;
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namespace rr
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{
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// Return oldValue with the bits indicated by mask replaced by corresponding bits of newValue.
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static inline int maskedBitReplace (int oldValue, int newValue, deUint32 mask)
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{
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return (oldValue & ~mask) | (newValue & mask);
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}
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static inline bool isInsideRect (const IVec2& point, const WindowRectangle& rect)
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{
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return de::inBounds(point.x(), rect.left, rect.left + rect.width) &&
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de::inBounds(point.y(), rect.bottom, rect.bottom + rect.height);
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}
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static inline Vec4 unpremultiply (const Vec4& v)
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{
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if (v.w() > 0.0f)
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return Vec4(v.x()/v.w(), v.y()/v.w(), v.z()/v.w(), v.w());
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else
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{
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DE_ASSERT(v.x() == 0.0f && v.y() == 0.0f && v.z() == 0.0f);
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return Vec4(0.0f, 0.0f, 0.0f, 0.0f);
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}
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}
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void clearMultisampleColorBuffer (const tcu::PixelBufferAccess& dst, const Vec4& v, const WindowRectangle& r) { tcu::clear(tcu::getSubregion(dst, 0, r.left, r.bottom, dst.getWidth(), r.width, r.height), v); }
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void clearMultisampleColorBuffer (const tcu::PixelBufferAccess& dst, const IVec4& v, const WindowRectangle& r) { tcu::clear(tcu::getSubregion(dst, 0, r.left, r.bottom, dst.getWidth(), r.width, r.height), v); }
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void clearMultisampleColorBuffer (const tcu::PixelBufferAccess& dst, const UVec4& v, const WindowRectangle& r) { tcu::clear(tcu::getSubregion(dst, 0, r.left, r.bottom, dst.getWidth(), r.width, r.height), v.cast<int>()); }
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void clearMultisampleDepthBuffer (const tcu::PixelBufferAccess& dst, float v, const WindowRectangle& r) { tcu::clearDepth(tcu::getSubregion(dst, 0, r.left, r.bottom, dst.getWidth(), r.width, r.height), v); }
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void clearMultisampleStencilBuffer (const tcu::PixelBufferAccess& dst, int v, const WindowRectangle& r) { tcu::clearStencil(tcu::getSubregion(dst, 0, r.left, r.bottom, dst.getWidth(), r.width, r.height), v); }
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FragmentProcessor::FragmentProcessor (void)
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: m_sampleRegister()
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{
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}
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void FragmentProcessor::executeScissorTest (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, const WindowRectangle& scissorRect)
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{
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for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
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{
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if (m_sampleRegister[regSampleNdx].isAlive)
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{
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int fragNdx = fragNdxOffset + regSampleNdx/numSamplesPerFragment;
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if (!isInsideRect(inputFragments[fragNdx].pixelCoord, scissorRect))
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m_sampleRegister[regSampleNdx].isAlive = false;
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}
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}
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}
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void FragmentProcessor::executeStencilCompare (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, const StencilState& stencilState, int numStencilBits, const tcu::ConstPixelBufferAccess& stencilBuffer)
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{
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#define SAMPLE_REGISTER_STENCIL_COMPARE(COMPARE_EXPRESSION) \
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for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++) \
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{ \
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if (m_sampleRegister[regSampleNdx].isAlive) \
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{ \
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int fragSampleNdx = regSampleNdx % numSamplesPerFragment; \
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const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment]; \
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int stencilBufferValue = stencilBuffer.getPixStencil(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y()); \
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int maskedRef = stencilState.compMask & clampedStencilRef; \
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int maskedBuf = stencilState.compMask & stencilBufferValue; \
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DE_UNREF(maskedRef); \
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DE_UNREF(maskedBuf); \
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\
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m_sampleRegister[regSampleNdx].stencilPassed = (COMPARE_EXPRESSION); \
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} \
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}
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int clampedStencilRef = de::clamp(stencilState.ref, 0, (1<<numStencilBits)-1);
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switch (stencilState.func)
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{
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case TESTFUNC_NEVER: SAMPLE_REGISTER_STENCIL_COMPARE(false) break;
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case TESTFUNC_ALWAYS: SAMPLE_REGISTER_STENCIL_COMPARE(true) break;
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case TESTFUNC_LESS: SAMPLE_REGISTER_STENCIL_COMPARE(maskedRef < maskedBuf) break;
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case TESTFUNC_LEQUAL: SAMPLE_REGISTER_STENCIL_COMPARE(maskedRef <= maskedBuf) break;
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case TESTFUNC_GREATER: SAMPLE_REGISTER_STENCIL_COMPARE(maskedRef > maskedBuf) break;
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case TESTFUNC_GEQUAL: SAMPLE_REGISTER_STENCIL_COMPARE(maskedRef >= maskedBuf) break;
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case TESTFUNC_EQUAL: SAMPLE_REGISTER_STENCIL_COMPARE(maskedRef == maskedBuf) break;
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case TESTFUNC_NOTEQUAL: SAMPLE_REGISTER_STENCIL_COMPARE(maskedRef != maskedBuf) break;
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default:
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DE_ASSERT(false);
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}
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#undef SAMPLE_REGISTER_STENCIL_COMPARE
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}
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void FragmentProcessor::executeStencilSFail (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, const StencilState& stencilState, int numStencilBits, const tcu::PixelBufferAccess& stencilBuffer)
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{
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#define SAMPLE_REGISTER_SFAIL(SFAIL_EXPRESSION) \
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for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++) \
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{ \
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if (m_sampleRegister[regSampleNdx].isAlive && !m_sampleRegister[regSampleNdx].stencilPassed) \
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{ \
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int fragSampleNdx = regSampleNdx % numSamplesPerFragment; \
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const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment]; \
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int stencilBufferValue = stencilBuffer.getPixStencil(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y()); \
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\
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stencilBuffer.setPixStencil(maskedBitReplace(stencilBufferValue, (SFAIL_EXPRESSION), stencilState.writeMask), fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y()); \
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m_sampleRegister[regSampleNdx].isAlive = false; \
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} \
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}
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int clampedStencilRef = de::clamp(stencilState.ref, 0, (1<<numStencilBits)-1);
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switch (stencilState.sFail)
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{
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case STENCILOP_KEEP: SAMPLE_REGISTER_SFAIL(stencilBufferValue) break;
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case STENCILOP_ZERO: SAMPLE_REGISTER_SFAIL(0) break;
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case STENCILOP_REPLACE: SAMPLE_REGISTER_SFAIL(clampedStencilRef) break;
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case STENCILOP_INCR: SAMPLE_REGISTER_SFAIL(de::clamp(stencilBufferValue+1, 0, (1<<numStencilBits) - 1)) break;
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case STENCILOP_DECR: SAMPLE_REGISTER_SFAIL(de::clamp(stencilBufferValue-1, 0, (1<<numStencilBits) - 1)) break;
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case STENCILOP_INCR_WRAP: SAMPLE_REGISTER_SFAIL((stencilBufferValue + 1) & ((1<<numStencilBits) - 1)) break;
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case STENCILOP_DECR_WRAP: SAMPLE_REGISTER_SFAIL((stencilBufferValue - 1) & ((1<<numStencilBits) - 1)) break;
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case STENCILOP_INVERT: SAMPLE_REGISTER_SFAIL((~stencilBufferValue) & ((1<<numStencilBits) - 1)) break;
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default:
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DE_ASSERT(false);
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}
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#undef SAMPLE_REGISTER_SFAIL
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}
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void FragmentProcessor::executeDepthBoundsTest (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, const float minDepthBound, const float maxDepthBound, const tcu::ConstPixelBufferAccess& depthBuffer)
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{
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if (depthBuffer.getFormat().type == tcu::TextureFormat::FLOAT || depthBuffer.getFormat().type == tcu::TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV)
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{
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for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; ++regSampleNdx)
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{
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if (m_sampleRegister[regSampleNdx].isAlive)
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{
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const int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
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const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment];
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const float depthBufferValue = depthBuffer.getPixDepth(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
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if (!de::inRange(depthBufferValue, minDepthBound, maxDepthBound))
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m_sampleRegister[regSampleNdx].isAlive = false;
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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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/* Convert float bounds to target buffer format for comparison */
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deUint32 minDepthBoundUint, maxDepthBoundUint;
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{
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deUint32 buffer[2];
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DE_ASSERT(sizeof(buffer) >= (size_t)depthBuffer.getFormat().getPixelSize());
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tcu::PixelBufferAccess access(depthBuffer.getFormat(), 1, 1, 1, &buffer);
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access.setPixDepth(minDepthBound, 0, 0, 0);
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minDepthBoundUint = access.getPixelUint(0, 0, 0).x();
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}
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{
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deUint32 buffer[2];
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tcu::PixelBufferAccess access(depthBuffer.getFormat(), 1, 1, 1, &buffer);
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access.setPixDepth(maxDepthBound, 0, 0, 0);
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maxDepthBoundUint = access.getPixelUint(0, 0, 0).x();
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}
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for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; ++regSampleNdx)
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{
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if (m_sampleRegister[regSampleNdx].isAlive)
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{
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const int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
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const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx / numSamplesPerFragment];
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const deUint32 depthBufferValue = depthBuffer.getPixelUint(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y()).x();
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if (!de::inRange(depthBufferValue, minDepthBoundUint, maxDepthBoundUint))
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m_sampleRegister[regSampleNdx].isAlive = false;
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}
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}
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}
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}
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void FragmentProcessor::executeDepthCompare (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, TestFunc depthFunc, const tcu::ConstPixelBufferAccess& depthBuffer)
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{
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#define SAMPLE_REGISTER_DEPTH_COMPARE_F(COMPARE_EXPRESSION) \
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for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++) \
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{ \
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if (m_sampleRegister[regSampleNdx].isAlive) \
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{ \
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int fragSampleNdx = regSampleNdx % numSamplesPerFragment; \
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const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment]; \
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float depthBufferValue = depthBuffer.getPixDepth(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y()); \
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float sampleDepthFloat = frag.sampleDepths[fragSampleNdx]; \
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float sampleDepth = de::clamp(sampleDepthFloat, 0.0f, 1.0f); \
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\
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m_sampleRegister[regSampleNdx].depthPassed = (COMPARE_EXPRESSION); \
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\
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DE_UNREF(depthBufferValue); \
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DE_UNREF(sampleDepth); \
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} \
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}
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#define SAMPLE_REGISTER_DEPTH_COMPARE_UI(COMPARE_EXPRESSION) \
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for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++) \
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{ \
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if (m_sampleRegister[regSampleNdx].isAlive) \
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{ \
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int fragSampleNdx = regSampleNdx % numSamplesPerFragment; \
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const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment]; \
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deUint32 depthBufferValue = depthBuffer.getPixelUint(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y()).x(); \
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float sampleDepthFloat = frag.sampleDepths[fragSampleNdx]; \
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\
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/* Convert input float to target buffer format for comparison */ \
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\
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deUint32 buffer[2]; \
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\
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DE_ASSERT(sizeof(buffer) >= (size_t)depthBuffer.getFormat().getPixelSize()); \
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\
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tcu::PixelBufferAccess access(depthBuffer.getFormat(), 1, 1, 1, &buffer); \
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access.setPixDepth(sampleDepthFloat, 0, 0, 0); \
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deUint32 sampleDepth = access.getPixelUint(0, 0, 0).x(); \
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\
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m_sampleRegister[regSampleNdx].depthPassed = (COMPARE_EXPRESSION); \
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\
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DE_UNREF(depthBufferValue); \
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DE_UNREF(sampleDepth); \
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} \
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}
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if (depthBuffer.getFormat().type == tcu::TextureFormat::FLOAT || depthBuffer.getFormat().type == tcu::TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV)
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{
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switch (depthFunc)
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{
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case TESTFUNC_NEVER: SAMPLE_REGISTER_DEPTH_COMPARE_F(false) break;
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case TESTFUNC_ALWAYS: SAMPLE_REGISTER_DEPTH_COMPARE_F(true) break;
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case TESTFUNC_LESS: SAMPLE_REGISTER_DEPTH_COMPARE_F(sampleDepth < depthBufferValue) break;
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case TESTFUNC_LEQUAL: SAMPLE_REGISTER_DEPTH_COMPARE_F(sampleDepth <= depthBufferValue) break;
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case TESTFUNC_GREATER: SAMPLE_REGISTER_DEPTH_COMPARE_F(sampleDepth > depthBufferValue) break;
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case TESTFUNC_GEQUAL: SAMPLE_REGISTER_DEPTH_COMPARE_F(sampleDepth >= depthBufferValue) break;
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case TESTFUNC_EQUAL: SAMPLE_REGISTER_DEPTH_COMPARE_F(sampleDepth == depthBufferValue) break;
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case TESTFUNC_NOTEQUAL: SAMPLE_REGISTER_DEPTH_COMPARE_F(sampleDepth != depthBufferValue) break;
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default:
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DE_ASSERT(false);
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}
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}
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else
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{
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switch (depthFunc)
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{
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case TESTFUNC_NEVER: SAMPLE_REGISTER_DEPTH_COMPARE_UI(false) break;
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case TESTFUNC_ALWAYS: SAMPLE_REGISTER_DEPTH_COMPARE_UI(true) break;
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case TESTFUNC_LESS: SAMPLE_REGISTER_DEPTH_COMPARE_UI(sampleDepth < depthBufferValue) break;
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case TESTFUNC_LEQUAL: SAMPLE_REGISTER_DEPTH_COMPARE_UI(sampleDepth <= depthBufferValue) break;
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case TESTFUNC_GREATER: SAMPLE_REGISTER_DEPTH_COMPARE_UI(sampleDepth > depthBufferValue) break;
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case TESTFUNC_GEQUAL: SAMPLE_REGISTER_DEPTH_COMPARE_UI(sampleDepth >= depthBufferValue) break;
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case TESTFUNC_EQUAL: SAMPLE_REGISTER_DEPTH_COMPARE_UI(sampleDepth == depthBufferValue) break;
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case TESTFUNC_NOTEQUAL: SAMPLE_REGISTER_DEPTH_COMPARE_UI(sampleDepth != depthBufferValue) break;
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default:
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DE_ASSERT(false);
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}
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}
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#undef SAMPLE_REGISTER_DEPTH_COMPARE_F
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#undef SAMPLE_REGISTER_DEPTH_COMPARE_UI
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}
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void FragmentProcessor::executeDepthWrite (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, const tcu::PixelBufferAccess& depthBuffer)
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{
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for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
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{
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if (m_sampleRegister[regSampleNdx].isAlive && m_sampleRegister[regSampleNdx].depthPassed)
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{
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int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
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const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment];
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const float clampedDepth = de::clamp(frag.sampleDepths[fragSampleNdx], 0.0f, 1.0f);
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depthBuffer.setPixDepth(clampedDepth, fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
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}
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}
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}
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void FragmentProcessor::executeStencilDpFailAndPass (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, const StencilState& stencilState, int numStencilBits, const tcu::PixelBufferAccess& stencilBuffer)
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{
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#define SAMPLE_REGISTER_DPFAIL_OR_DPPASS(CONDITION, EXPRESSION) \
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for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++) \
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{ \
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if (m_sampleRegister[regSampleNdx].isAlive && (CONDITION)) \
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{ \
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int fragSampleNdx = regSampleNdx % numSamplesPerFragment; \
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const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment]; \
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int stencilBufferValue = stencilBuffer.getPixStencil(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y()); \
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\
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stencilBuffer.setPixStencil(maskedBitReplace(stencilBufferValue, (EXPRESSION), stencilState.writeMask), fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y()); \
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} \
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}
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#define SWITCH_DPFAIL_OR_DPPASS(OP_NAME, CONDITION) \
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switch (stencilState.OP_NAME) \
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{ \
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case STENCILOP_KEEP: SAMPLE_REGISTER_DPFAIL_OR_DPPASS(CONDITION, stencilBufferValue) break; \
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case STENCILOP_ZERO: SAMPLE_REGISTER_DPFAIL_OR_DPPASS(CONDITION, 0) break; \
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case STENCILOP_REPLACE: SAMPLE_REGISTER_DPFAIL_OR_DPPASS(CONDITION, clampedStencilRef) break; \
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case STENCILOP_INCR: SAMPLE_REGISTER_DPFAIL_OR_DPPASS(CONDITION, de::clamp(stencilBufferValue+1, 0, (1<<numStencilBits) - 1)) break; \
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case STENCILOP_DECR: SAMPLE_REGISTER_DPFAIL_OR_DPPASS(CONDITION, de::clamp(stencilBufferValue-1, 0, (1<<numStencilBits) - 1)) break; \
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case STENCILOP_INCR_WRAP: SAMPLE_REGISTER_DPFAIL_OR_DPPASS(CONDITION, (stencilBufferValue + 1) & ((1<<numStencilBits) - 1)) break; \
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case STENCILOP_DECR_WRAP: SAMPLE_REGISTER_DPFAIL_OR_DPPASS(CONDITION, (stencilBufferValue - 1) & ((1<<numStencilBits) - 1)) break; \
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case STENCILOP_INVERT: SAMPLE_REGISTER_DPFAIL_OR_DPPASS(CONDITION, (~stencilBufferValue) & ((1<<numStencilBits) - 1)) break; \
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default: \
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DE_ASSERT(false); \
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}
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int clampedStencilRef = de::clamp(stencilState.ref, 0, (1<<numStencilBits)-1);
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SWITCH_DPFAIL_OR_DPPASS(dpFail, !m_sampleRegister[regSampleNdx].depthPassed)
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SWITCH_DPFAIL_OR_DPPASS(dpPass, m_sampleRegister[regSampleNdx].depthPassed)
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#undef SWITCH_DPFAIL_OR_DPPASS
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#undef SAMPLE_REGISTER_DPFAIL_OR_DPPASS
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}
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void FragmentProcessor::executeBlendFactorComputeRGB (const Vec4& blendColor, const BlendState& blendRGBState)
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{
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#define SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, FACTOR_EXPRESSION) \
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for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++) \
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{ \
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if (m_sampleRegister[regSampleNdx].isAlive) \
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{ \
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const Vec4& src = m_sampleRegister[regSampleNdx].clampedBlendSrcColor; \
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const Vec4& src1 = m_sampleRegister[regSampleNdx].clampedBlendSrc1Color; \
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const Vec4& dst = m_sampleRegister[regSampleNdx].clampedBlendDstColor; \
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DE_UNREF(src); \
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DE_UNREF(src1); \
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DE_UNREF(dst); \
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\
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m_sampleRegister[regSampleNdx].FACTOR_NAME = (FACTOR_EXPRESSION); \
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} \
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}
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#define SWITCH_SRC_OR_DST_FACTOR_RGB(FUNC_NAME, FACTOR_NAME) \
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switch (blendRGBState.FUNC_NAME) \
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{ \
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case BLENDFUNC_ZERO: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(0.0f)) break; \
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case BLENDFUNC_ONE: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(1.0f)) break; \
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case BLENDFUNC_SRC_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, src.swizzle(0,1,2)) break; \
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case BLENDFUNC_ONE_MINUS_SRC_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(1.0f) - src.swizzle(0,1,2)) break; \
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case BLENDFUNC_DST_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, dst.swizzle(0,1,2)) break; \
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case BLENDFUNC_ONE_MINUS_DST_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(1.0f) - dst.swizzle(0,1,2)) break; \
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case BLENDFUNC_SRC_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(src.w())) break; \
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case BLENDFUNC_ONE_MINUS_SRC_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(1.0f - src.w())) break; \
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case BLENDFUNC_DST_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(dst.w())) break; \
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case BLENDFUNC_ONE_MINUS_DST_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(1.0f - dst.w())) break; \
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case BLENDFUNC_CONSTANT_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, blendColor.swizzle(0,1,2)) break; \
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case BLENDFUNC_ONE_MINUS_CONSTANT_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(1.0f) - blendColor.swizzle(0,1,2)) break; \
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case BLENDFUNC_CONSTANT_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(blendColor.w())) break; \
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case BLENDFUNC_ONE_MINUS_CONSTANT_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(1.0f - blendColor.w())) break; \
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case BLENDFUNC_SRC_ALPHA_SATURATE: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(de::min(src.w(), 1.0f - dst.w()))) break; \
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case BLENDFUNC_SRC1_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, src1.swizzle(0,1,2)) break; \
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case BLENDFUNC_ONE_MINUS_SRC1_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(1.0f) - src1.swizzle(0,1,2)) break; \
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case BLENDFUNC_SRC1_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(src1.w())) break; \
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case BLENDFUNC_ONE_MINUS_SRC1_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, Vec3(1.0f - src1.w())) break; \
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default: \
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DE_ASSERT(false); \
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}
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SWITCH_SRC_OR_DST_FACTOR_RGB(srcFunc, blendSrcFactorRGB)
|
SWITCH_SRC_OR_DST_FACTOR_RGB(dstFunc, blendDstFactorRGB)
|
|
#undef SWITCH_SRC_OR_DST_FACTOR_RGB
|
#undef SAMPLE_REGISTER_BLEND_FACTOR
|
}
|
|
void FragmentProcessor::executeBlendFactorComputeA (const Vec4& blendColor, const BlendState& blendAState)
|
{
|
#define SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, FACTOR_EXPRESSION) \
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++) \
|
{ \
|
if (m_sampleRegister[regSampleNdx].isAlive) \
|
{ \
|
const Vec4& src = m_sampleRegister[regSampleNdx].clampedBlendSrcColor; \
|
const Vec4& src1 = m_sampleRegister[regSampleNdx].clampedBlendSrc1Color; \
|
const Vec4& dst = m_sampleRegister[regSampleNdx].clampedBlendDstColor; \
|
DE_UNREF(src); \
|
DE_UNREF(src1); \
|
DE_UNREF(dst); \
|
\
|
m_sampleRegister[regSampleNdx].FACTOR_NAME = (FACTOR_EXPRESSION); \
|
} \
|
}
|
|
#define SWITCH_SRC_OR_DST_FACTOR_A(FUNC_NAME, FACTOR_NAME) \
|
switch (blendAState.FUNC_NAME) \
|
{ \
|
case BLENDFUNC_ZERO: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 0.0f) break; \
|
case BLENDFUNC_ONE: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 1.0f) break; \
|
case BLENDFUNC_SRC_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, src.w()) break; \
|
case BLENDFUNC_ONE_MINUS_SRC_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 1.0f - src.w()) break; \
|
case BLENDFUNC_DST_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, dst.w()) break; \
|
case BLENDFUNC_ONE_MINUS_DST_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 1.0f - dst.w()) break; \
|
case BLENDFUNC_SRC_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, src.w()) break; \
|
case BLENDFUNC_ONE_MINUS_SRC_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 1.0f - src.w()) break; \
|
case BLENDFUNC_DST_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, dst.w()) break; \
|
case BLENDFUNC_ONE_MINUS_DST_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 1.0f - dst.w()) break; \
|
case BLENDFUNC_CONSTANT_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, blendColor.w()) break; \
|
case BLENDFUNC_ONE_MINUS_CONSTANT_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 1.0f - blendColor.w()) break; \
|
case BLENDFUNC_CONSTANT_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, blendColor.w()) break; \
|
case BLENDFUNC_ONE_MINUS_CONSTANT_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 1.0f - blendColor.w()) break; \
|
case BLENDFUNC_SRC_ALPHA_SATURATE: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 1.0f) break; \
|
case BLENDFUNC_SRC1_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, src1.w()) break; \
|
case BLENDFUNC_ONE_MINUS_SRC1_COLOR: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 1.0f - src1.w()) break; \
|
case BLENDFUNC_SRC1_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, src1.w()) break; \
|
case BLENDFUNC_ONE_MINUS_SRC1_ALPHA: SAMPLE_REGISTER_BLEND_FACTOR(FACTOR_NAME, 1.0f - src1.w()) break; \
|
default: \
|
DE_ASSERT(false); \
|
}
|
|
SWITCH_SRC_OR_DST_FACTOR_A(srcFunc, blendSrcFactorA)
|
SWITCH_SRC_OR_DST_FACTOR_A(dstFunc, blendDstFactorA)
|
|
#undef SWITCH_SRC_OR_DST_FACTOR_A
|
#undef SAMPLE_REGISTER_BLEND_FACTOR
|
}
|
|
void FragmentProcessor::executeBlend (const BlendState& blendRGBState, const BlendState& blendAState)
|
{
|
#define SAMPLE_REGISTER_BLENDED_COLOR(COLOR_NAME, COLOR_EXPRESSION) \
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++) \
|
{ \
|
if (m_sampleRegister[regSampleNdx].isAlive) \
|
{ \
|
SampleData& sample = m_sampleRegister[regSampleNdx]; \
|
const Vec4& srcColor = sample.clampedBlendSrcColor; \
|
const Vec4& dstColor = sample.clampedBlendDstColor; \
|
\
|
sample.COLOR_NAME = (COLOR_EXPRESSION); \
|
} \
|
}
|
|
switch (blendRGBState.equation)
|
{
|
case BLENDEQUATION_ADD: SAMPLE_REGISTER_BLENDED_COLOR(blendedRGB, srcColor.swizzle(0,1,2)*sample.blendSrcFactorRGB + dstColor.swizzle(0,1,2)*sample.blendDstFactorRGB) break;
|
case BLENDEQUATION_SUBTRACT: SAMPLE_REGISTER_BLENDED_COLOR(blendedRGB, srcColor.swizzle(0,1,2)*sample.blendSrcFactorRGB - dstColor.swizzle(0,1,2)*sample.blendDstFactorRGB) break;
|
case BLENDEQUATION_REVERSE_SUBTRACT: SAMPLE_REGISTER_BLENDED_COLOR(blendedRGB, dstColor.swizzle(0,1,2)*sample.blendDstFactorRGB - srcColor.swizzle(0,1,2)*sample.blendSrcFactorRGB) break;
|
case BLENDEQUATION_MIN: SAMPLE_REGISTER_BLENDED_COLOR(blendedRGB, min(srcColor.swizzle(0,1,2), dstColor.swizzle(0,1,2))) break;
|
case BLENDEQUATION_MAX: SAMPLE_REGISTER_BLENDED_COLOR(blendedRGB, max(srcColor.swizzle(0,1,2), dstColor.swizzle(0,1,2))) break;
|
default:
|
DE_ASSERT(false);
|
}
|
|
switch (blendAState.equation)
|
{
|
case BLENDEQUATION_ADD: SAMPLE_REGISTER_BLENDED_COLOR(blendedA, srcColor.w()*sample.blendSrcFactorA + dstColor.w()*sample.blendDstFactorA) break;
|
case BLENDEQUATION_SUBTRACT: SAMPLE_REGISTER_BLENDED_COLOR(blendedA, srcColor.w()*sample.blendSrcFactorA - dstColor.w()*sample.blendDstFactorA) break;
|
case BLENDEQUATION_REVERSE_SUBTRACT: SAMPLE_REGISTER_BLENDED_COLOR(blendedA, dstColor.w()*sample.blendDstFactorA - srcColor.w()*sample.blendSrcFactorA) break;
|
case BLENDEQUATION_MIN: SAMPLE_REGISTER_BLENDED_COLOR(blendedA, min(srcColor.w(), dstColor.w())) break;
|
case BLENDEQUATION_MAX: SAMPLE_REGISTER_BLENDED_COLOR(blendedA, max(srcColor.w(), dstColor.w())) break;
|
default:
|
DE_ASSERT(false);
|
}
|
#undef SAMPLE_REGISTER_BLENDED_COLOR
|
}
|
|
namespace advblend
|
{
|
|
inline float multiply (float src, float dst) { return src*dst; }
|
inline float screen (float src, float dst) { return src + dst - src*dst; }
|
inline float darken (float src, float dst) { return de::min(src, dst); }
|
inline float lighten (float src, float dst) { return de::max(src, dst); }
|
inline float difference (float src, float dst) { return de::abs(dst-src); }
|
inline float exclusion (float src, float dst) { return src + dst - 2.0f*src*dst; }
|
|
inline float overlay (float src, float dst)
|
{
|
if (dst <= 0.5f)
|
return 2.0f*src*dst;
|
else
|
return 1.0f - 2.0f*(1.0f-src)*(1.0f-dst);
|
}
|
|
inline float colordodge (float src, float dst)
|
{
|
if (dst <= 0.0f)
|
return 0.0f;
|
else if (src < 1.0f)
|
return de::min(1.0f, dst/(1.0f-src));
|
else
|
return 1.0f;
|
}
|
|
inline float colorburn (float src, float dst)
|
{
|
if (dst >= 1.0f)
|
return 1.0f;
|
else if (src > 0.0f)
|
return 1.0f - de::min(1.0f, (1.0f-dst)/src);
|
else
|
return 0.0f;
|
}
|
|
inline float hardlight (float src, float dst)
|
{
|
if (src <= 0.5f)
|
return 2.0f*src*dst;
|
else
|
return 1.0f - 2.0f*(1.0f-src)*(1.0f-dst);
|
}
|
|
inline float softlight (float src, float dst)
|
{
|
if (src <= 0.5f)
|
return dst - (1.0f - 2.0f*src)*dst*(1.0f-dst);
|
else if (dst <= 0.25f)
|
return dst + (2.0f*src - 1.0f)*dst*((16.0f*dst - 12.0f)*dst + 3.0f);
|
else
|
return dst + (2.0f*src - 1.0f)*(deFloatSqrt(dst)-dst);
|
}
|
|
inline float minComp (const Vec3& v)
|
{
|
return de::min(de::min(v.x(), v.y()), v.z());
|
}
|
|
inline float maxComp (const Vec3& v)
|
{
|
return de::max(de::max(v.x(), v.y()), v.z());
|
}
|
|
inline float luminosity (const Vec3& rgb)
|
{
|
return dot(rgb, Vec3(0.3f, 0.59f, 0.11f));
|
}
|
|
inline float saturation (const Vec3& rgb)
|
{
|
return maxComp(rgb) - minComp(rgb);
|
}
|
|
Vec3 setLum (const Vec3& cbase, const Vec3& clum)
|
{
|
const float lbase = luminosity(cbase);
|
const float llum = luminosity(clum);
|
const float ldiff = llum - lbase;
|
const Vec3 color = cbase + Vec3(ldiff);
|
const float minC = minComp(color);
|
const float maxC = maxComp(color);
|
|
if (minC < 0.0f)
|
return llum + ((color-llum)*llum / (llum != minC ? (llum-minC) : 1.0f));
|
else if (maxC > 1.0f)
|
return llum + ((color-llum)*(1.0f-llum) / (llum != maxC ? (maxC-llum) : 1.0f));
|
else
|
return color;
|
}
|
|
Vec3 setLumSat (const Vec3& cbase, const Vec3& csat, const Vec3& clum)
|
{
|
const float minbase = minComp(cbase);
|
const float sbase = saturation(cbase);
|
const float ssat = saturation(csat);
|
Vec3 color = Vec3(0.0f);
|
|
if (sbase > 0.0f)
|
color = (cbase - minbase) * ssat / sbase;
|
|
return setLum(color, clum);
|
}
|
|
} // advblend
|
|
void FragmentProcessor::executeAdvancedBlend (BlendEquationAdvanced equation)
|
{
|
using namespace advblend;
|
|
#define SAMPLE_REGISTER_ADV_BLEND(FUNCTION_NAME) \
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++) \
|
{ \
|
if (m_sampleRegister[regSampleNdx].isAlive) \
|
{ \
|
SampleData& sample = m_sampleRegister[regSampleNdx]; \
|
const Vec4& srcColor = sample.clampedBlendSrcColor; \
|
const Vec4& dstColor = sample.clampedBlendDstColor; \
|
const Vec3& bias = sample.blendSrcFactorRGB; \
|
const float p0 = sample.blendSrcFactorA; \
|
const float r = FUNCTION_NAME(srcColor[0], dstColor[0])*p0 + bias[0]; \
|
const float g = FUNCTION_NAME(srcColor[1], dstColor[1])*p0 + bias[1]; \
|
const float b = FUNCTION_NAME(srcColor[2], dstColor[2])*p0 + bias[2]; \
|
\
|
sample.blendedRGB = Vec3(r, g, b); \
|
} \
|
}
|
|
#define SAMPLE_REGISTER_ADV_BLEND_HSL(COLOR_EXPRESSION) \
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++) \
|
{ \
|
if (m_sampleRegister[regSampleNdx].isAlive) \
|
{ \
|
SampleData& sample = m_sampleRegister[regSampleNdx]; \
|
const Vec3 srcColor = sample.clampedBlendSrcColor.swizzle(0,1,2); \
|
const Vec3 dstColor = sample.clampedBlendDstColor.swizzle(0,1,2); \
|
const Vec3& bias = sample.blendSrcFactorRGB; \
|
const float p0 = sample.blendSrcFactorA; \
|
\
|
sample.blendedRGB = (COLOR_EXPRESSION)*p0 + bias; \
|
} \
|
}
|
|
// Pre-compute factors & compute alpha \todo [2014-03-18 pyry] Re-using variable names.
|
// \note clampedBlend*Color contains clamped & unpremultiplied colors
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
SampleData& sample = m_sampleRegister[regSampleNdx];
|
const Vec4& srcColor = sample.clampedBlendSrcColor;
|
const Vec4& dstColor = sample.clampedBlendDstColor;
|
const float srcA = srcColor.w();
|
const float dstA = dstColor.w();
|
const float p0 = srcA*dstA;
|
const float p1 = srcA*(1.0f-dstA);
|
const float p2 = dstA*(1.0f-srcA);
|
const Vec3 bias (srcColor[0]*p1 + dstColor[0]*p2,
|
srcColor[1]*p1 + dstColor[1]*p2,
|
srcColor[2]*p1 + dstColor[2]*p2);
|
|
sample.blendSrcFactorRGB = bias;
|
sample.blendSrcFactorA = p0;
|
sample.blendedA = p0 + p1 + p2;
|
}
|
}
|
|
switch (equation)
|
{
|
case BLENDEQUATION_ADVANCED_MULTIPLY: SAMPLE_REGISTER_ADV_BLEND(multiply); break;
|
case BLENDEQUATION_ADVANCED_SCREEN: SAMPLE_REGISTER_ADV_BLEND(screen); break;
|
case BLENDEQUATION_ADVANCED_OVERLAY: SAMPLE_REGISTER_ADV_BLEND(overlay); break;
|
case BLENDEQUATION_ADVANCED_DARKEN: SAMPLE_REGISTER_ADV_BLEND(darken); break;
|
case BLENDEQUATION_ADVANCED_LIGHTEN: SAMPLE_REGISTER_ADV_BLEND(lighten); break;
|
case BLENDEQUATION_ADVANCED_COLORDODGE: SAMPLE_REGISTER_ADV_BLEND(colordodge); break;
|
case BLENDEQUATION_ADVANCED_COLORBURN: SAMPLE_REGISTER_ADV_BLEND(colorburn); break;
|
case BLENDEQUATION_ADVANCED_HARDLIGHT: SAMPLE_REGISTER_ADV_BLEND(hardlight); break;
|
case BLENDEQUATION_ADVANCED_SOFTLIGHT: SAMPLE_REGISTER_ADV_BLEND(softlight); break;
|
case BLENDEQUATION_ADVANCED_DIFFERENCE: SAMPLE_REGISTER_ADV_BLEND(difference); break;
|
case BLENDEQUATION_ADVANCED_EXCLUSION: SAMPLE_REGISTER_ADV_BLEND(exclusion); break;
|
case BLENDEQUATION_ADVANCED_HSL_HUE: SAMPLE_REGISTER_ADV_BLEND_HSL(setLumSat(srcColor, dstColor, dstColor)); break;
|
case BLENDEQUATION_ADVANCED_HSL_SATURATION: SAMPLE_REGISTER_ADV_BLEND_HSL(setLumSat(dstColor, srcColor, dstColor)); break;
|
case BLENDEQUATION_ADVANCED_HSL_COLOR: SAMPLE_REGISTER_ADV_BLEND_HSL(setLum(srcColor, dstColor)); break;
|
case BLENDEQUATION_ADVANCED_HSL_LUMINOSITY: SAMPLE_REGISTER_ADV_BLEND_HSL(setLum(dstColor, srcColor)); break;
|
default:
|
DE_ASSERT(false);
|
}
|
|
#undef SAMPLE_REGISTER_ADV_BLEND
|
#undef SAMPLE_REGISTER_ADV_BLEND_HSL
|
}
|
|
void FragmentProcessor::executeColorWrite (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, bool isSRGB, const tcu::PixelBufferAccess& colorBuffer)
|
{
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
|
const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment];
|
Vec4 combinedColor;
|
|
combinedColor.xyz() = m_sampleRegister[regSampleNdx].blendedRGB;
|
combinedColor.w() = m_sampleRegister[regSampleNdx].blendedA;
|
|
if (isSRGB)
|
combinedColor = tcu::linearToSRGB(combinedColor);
|
|
colorBuffer.setPixel(combinedColor, fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
|
}
|
}
|
}
|
|
void FragmentProcessor::executeRGBA8ColorWrite (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, const tcu::PixelBufferAccess& colorBuffer)
|
{
|
const int fragStride = 4;
|
const int xStride = colorBuffer.getRowPitch();
|
const int yStride = colorBuffer.getSlicePitch();
|
deUint8* const basePtr = (deUint8*)colorBuffer.getDataPtr();
|
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
const int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
|
const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment];
|
deUint8* dstPtr = basePtr + fragSampleNdx*fragStride + frag.pixelCoord.x()*xStride + frag.pixelCoord.y()*yStride;
|
|
dstPtr[0] = tcu::floatToU8(m_sampleRegister[regSampleNdx].blendedRGB.x());
|
dstPtr[1] = tcu::floatToU8(m_sampleRegister[regSampleNdx].blendedRGB.y());
|
dstPtr[2] = tcu::floatToU8(m_sampleRegister[regSampleNdx].blendedRGB.z());
|
dstPtr[3] = tcu::floatToU8(m_sampleRegister[regSampleNdx].blendedA);
|
}
|
}
|
}
|
|
void FragmentProcessor::executeMaskedColorWrite (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, const Vec4& colorMaskFactor, const Vec4& colorMaskNegationFactor, bool isSRGB, const tcu::PixelBufferAccess& colorBuffer)
|
{
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
|
const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment];
|
Vec4 originalColor = colorBuffer.getPixel(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
|
Vec4 newColor;
|
|
newColor.xyz() = m_sampleRegister[regSampleNdx].blendedRGB;
|
newColor.w() = m_sampleRegister[regSampleNdx].blendedA;
|
|
if (isSRGB)
|
newColor = tcu::linearToSRGB(newColor);
|
|
newColor = colorMaskFactor*newColor + colorMaskNegationFactor*originalColor;
|
|
colorBuffer.setPixel(newColor, fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
|
}
|
}
|
}
|
|
void FragmentProcessor::executeSignedValueWrite (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, const tcu::BVec4& colorMask, const tcu::PixelBufferAccess& colorBuffer)
|
{
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
|
const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment];
|
const IVec4 originalValue = colorBuffer.getPixelInt(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
|
|
colorBuffer.setPixel(tcu::select(m_sampleRegister[regSampleNdx].signedValue, originalValue, colorMask), fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
|
}
|
}
|
}
|
|
void FragmentProcessor::executeUnsignedValueWrite (int fragNdxOffset, int numSamplesPerFragment, const Fragment* inputFragments, const tcu::BVec4& colorMask, const tcu::PixelBufferAccess& colorBuffer)
|
{
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
|
const Fragment& frag = inputFragments[fragNdxOffset + regSampleNdx/numSamplesPerFragment];
|
const UVec4 originalValue = colorBuffer.getPixelUint(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
|
|
colorBuffer.setPixel(tcu::select(m_sampleRegister[regSampleNdx].unsignedValue, originalValue, colorMask), fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
|
}
|
}
|
}
|
|
void FragmentProcessor::render (const rr::MultisamplePixelBufferAccess& msColorBuffer,
|
const rr::MultisamplePixelBufferAccess& msDepthBuffer,
|
const rr::MultisamplePixelBufferAccess& msStencilBuffer,
|
const Fragment* inputFragments,
|
int numFragments,
|
FaceType fragmentFacing,
|
const FragmentOperationState& state)
|
{
|
DE_ASSERT(fragmentFacing < FACETYPE_LAST);
|
DE_ASSERT(state.numStencilBits < 32); // code bitshifts numStencilBits, avoid undefined behavior
|
|
const tcu::PixelBufferAccess& colorBuffer = msColorBuffer.raw();
|
const tcu::PixelBufferAccess& depthBuffer = msDepthBuffer.raw();
|
const tcu::PixelBufferAccess& stencilBuffer = msStencilBuffer.raw();
|
|
bool hasDepth = depthBuffer.getWidth() > 0 && depthBuffer.getHeight() > 0 && depthBuffer.getDepth() > 0;
|
bool hasStencil = stencilBuffer.getWidth() > 0 && stencilBuffer.getHeight() > 0 && stencilBuffer.getDepth() > 0;
|
bool doDepthBoundsTest = hasDepth && state.depthBoundsTestEnabled;
|
bool doDepthTest = hasDepth && state.depthTestEnabled;
|
bool doStencilTest = hasStencil && state.stencilTestEnabled;
|
|
tcu::TextureChannelClass colorbufferClass = tcu::getTextureChannelClass(msColorBuffer.raw().getFormat().type);
|
rr::GenericVecType fragmentDataType = (colorbufferClass == tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER) ? (rr::GENERICVECTYPE_INT32) : ((colorbufferClass == tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER) ? (rr::GENERICVECTYPE_UINT32) : (rr::GENERICVECTYPE_FLOAT));
|
|
DE_ASSERT((!hasDepth || colorBuffer.getWidth() == depthBuffer.getWidth()) && (!hasStencil || colorBuffer.getWidth() == stencilBuffer.getWidth()));
|
DE_ASSERT((!hasDepth || colorBuffer.getHeight() == depthBuffer.getHeight()) && (!hasStencil || colorBuffer.getHeight() == stencilBuffer.getHeight()));
|
DE_ASSERT((!hasDepth || colorBuffer.getDepth() == depthBuffer.getDepth()) && (!hasStencil || colorBuffer.getDepth() == stencilBuffer.getDepth()));
|
|
// Combined formats must be separated beforehand
|
DE_ASSERT(!hasDepth || (!tcu::isCombinedDepthStencilType(depthBuffer.getFormat().type) && depthBuffer.getFormat().order == tcu::TextureFormat::D));
|
DE_ASSERT(!hasStencil || (!tcu::isCombinedDepthStencilType(stencilBuffer.getFormat().type) && stencilBuffer.getFormat().order == tcu::TextureFormat::S));
|
|
int numSamplesPerFragment = colorBuffer.getWidth();
|
int totalNumSamples = numFragments*numSamplesPerFragment;
|
int numSampleGroups = (totalNumSamples - 1) / SAMPLE_REGISTER_SIZE + 1; // \note totalNumSamples/SAMPLE_REGISTER_SIZE rounded up.
|
const StencilState& stencilState = state.stencilStates[fragmentFacing];
|
Vec4 colorMaskFactor (state.colorMask[0] ? 1.0f : 0.0f, state.colorMask[1] ? 1.0f : 0.0f, state.colorMask[2] ? 1.0f : 0.0f, state.colorMask[3] ? 1.0f : 0.0f);
|
Vec4 colorMaskNegationFactor (state.colorMask[0] ? 0.0f : 1.0f, state.colorMask[1] ? 0.0f : 1.0f, state.colorMask[2] ? 0.0f : 1.0f, state.colorMask[3] ? 0.0f : 1.0f);
|
bool sRGBTarget = state.sRGBEnabled && tcu::isSRGB(colorBuffer.getFormat());
|
|
DE_ASSERT(SAMPLE_REGISTER_SIZE % numSamplesPerFragment == 0);
|
|
// Divide the fragments' samples into groups of size SAMPLE_REGISTER_SIZE, and perform
|
// the per-sample operations for one group at a time.
|
|
for (int sampleGroupNdx = 0; sampleGroupNdx < numSampleGroups; sampleGroupNdx++)
|
{
|
// The index of the fragment of the sample at the beginning of m_sampleRegisters.
|
int groupFirstFragNdx = (sampleGroupNdx*SAMPLE_REGISTER_SIZE) / numSamplesPerFragment;
|
|
// Initialize sample data in the sample register.
|
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
int fragNdx = groupFirstFragNdx + regSampleNdx/numSamplesPerFragment;
|
int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
|
|
if (fragNdx < numFragments)
|
{
|
m_sampleRegister[regSampleNdx].isAlive = (inputFragments[fragNdx].coverage & (1u << fragSampleNdx)) != 0;
|
m_sampleRegister[regSampleNdx].depthPassed = true; // \note This will stay true if depth test is disabled.
|
}
|
else
|
m_sampleRegister[regSampleNdx].isAlive = false;
|
}
|
|
// Scissor test.
|
|
if (state.scissorTestEnabled)
|
executeScissorTest(groupFirstFragNdx, numSamplesPerFragment, inputFragments, state.scissorRectangle);
|
|
// Depth bounds test.
|
|
if (doDepthBoundsTest)
|
executeDepthBoundsTest(groupFirstFragNdx, numSamplesPerFragment, inputFragments, state.minDepthBound, state.maxDepthBound, depthBuffer);
|
|
// Stencil test.
|
|
if (doStencilTest)
|
{
|
executeStencilCompare(groupFirstFragNdx, numSamplesPerFragment, inputFragments, stencilState, state.numStencilBits, stencilBuffer);
|
executeStencilSFail(groupFirstFragNdx, numSamplesPerFragment, inputFragments, stencilState, state.numStencilBits, stencilBuffer);
|
}
|
|
// Depth test.
|
// \note Current value of isAlive is needed for dpPass and dpFail, so it's only updated after them and not right after depth test.
|
|
if (doDepthTest)
|
{
|
executeDepthCompare(groupFirstFragNdx, numSamplesPerFragment, inputFragments, state.depthFunc, depthBuffer);
|
|
if (state.depthMask)
|
executeDepthWrite(groupFirstFragNdx, numSamplesPerFragment, inputFragments, depthBuffer);
|
}
|
|
// Do dpFail and dpPass stencil writes.
|
|
if (doStencilTest)
|
executeStencilDpFailAndPass(groupFirstFragNdx, numSamplesPerFragment, inputFragments, stencilState, state.numStencilBits, stencilBuffer);
|
|
// Kill the samples that failed depth test.
|
|
if (doDepthTest)
|
{
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
m_sampleRegister[regSampleNdx].isAlive = m_sampleRegister[regSampleNdx].isAlive && m_sampleRegister[regSampleNdx].depthPassed;
|
}
|
|
// Paint fragments to target
|
|
switch (fragmentDataType)
|
{
|
case rr::GENERICVECTYPE_FLOAT:
|
{
|
// Select min/max clamping values for blending factors and operands
|
Vec4 minClampValue;
|
Vec4 maxClampValue;
|
|
if (colorbufferClass == tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT)
|
{
|
minClampValue = Vec4(0.0f);
|
maxClampValue = Vec4(1.0f);
|
}
|
else if (colorbufferClass == tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT)
|
{
|
minClampValue = Vec4(-1.0f);
|
maxClampValue = Vec4(1.0f);
|
}
|
else
|
{
|
// No clamping
|
minClampValue = Vec4(-std::numeric_limits<float>::infinity());
|
maxClampValue = Vec4(std::numeric_limits<float>::infinity());
|
}
|
|
// Blend calculation - only if using blend.
|
if (state.blendMode == BLENDMODE_STANDARD)
|
{
|
// Put dst color to register, doing srgb-to-linear conversion if needed.
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
|
const Fragment& frag = inputFragments[groupFirstFragNdx + regSampleNdx/numSamplesPerFragment];
|
Vec4 dstColor = colorBuffer.getPixel(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
|
|
m_sampleRegister[regSampleNdx].clampedBlendSrcColor = clamp(frag.value.get<float>(), minClampValue, maxClampValue);
|
m_sampleRegister[regSampleNdx].clampedBlendSrc1Color = clamp(frag.value1.get<float>(), minClampValue, maxClampValue);
|
m_sampleRegister[regSampleNdx].clampedBlendDstColor = clamp(sRGBTarget ? tcu::sRGBToLinear(dstColor) : dstColor, minClampValue, maxClampValue);
|
}
|
}
|
|
// Calculate blend factors to register.
|
executeBlendFactorComputeRGB(state.blendColor, state.blendRGBState);
|
executeBlendFactorComputeA(state.blendColor, state.blendAState);
|
|
// Compute blended color.
|
executeBlend(state.blendRGBState, state.blendAState);
|
}
|
else if (state.blendMode == BLENDMODE_ADVANCED)
|
{
|
// Unpremultiply colors for blending, and do sRGB->linear if necessary
|
// \todo [2014-03-17 pyry] Re-consider clampedBlend*Color var names
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
int fragSampleNdx = regSampleNdx % numSamplesPerFragment;
|
const Fragment& frag = inputFragments[groupFirstFragNdx + regSampleNdx/numSamplesPerFragment];
|
const Vec4 srcColor = frag.value.get<float>();
|
const Vec4 dstColor = colorBuffer.getPixel(fragSampleNdx, frag.pixelCoord.x(), frag.pixelCoord.y());
|
|
m_sampleRegister[regSampleNdx].clampedBlendSrcColor = unpremultiply(clamp(srcColor, minClampValue, maxClampValue));
|
m_sampleRegister[regSampleNdx].clampedBlendDstColor = unpremultiply(clamp(sRGBTarget ? tcu::sRGBToLinear(dstColor) : dstColor, minClampValue, maxClampValue));
|
}
|
}
|
|
executeAdvancedBlend(state.blendEquationAdvaced);
|
}
|
else
|
{
|
// Not using blend - just put values to register as-is.
|
DE_ASSERT(state.blendMode == BLENDMODE_NONE);
|
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
const Fragment& frag = inputFragments[groupFirstFragNdx + regSampleNdx/numSamplesPerFragment];
|
|
m_sampleRegister[regSampleNdx].blendedRGB = frag.value.get<float>().xyz();
|
m_sampleRegister[regSampleNdx].blendedA = frag.value.get<float>().w();
|
}
|
}
|
}
|
|
// Clamp result values in sample register
|
if (colorbufferClass != tcu::TEXTURECHANNELCLASS_FLOATING_POINT)
|
{
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
m_sampleRegister[regSampleNdx].blendedRGB = clamp(m_sampleRegister[regSampleNdx].blendedRGB, minClampValue.swizzle(0, 1, 2), maxClampValue.swizzle(0, 1, 2));
|
m_sampleRegister[regSampleNdx].blendedA = clamp(m_sampleRegister[regSampleNdx].blendedA, minClampValue.w(), maxClampValue.w());
|
}
|
}
|
}
|
|
// Finally, write the colors to the color buffer.
|
|
if (state.colorMask[0] && state.colorMask[1] && state.colorMask[2] && state.colorMask[3])
|
{
|
if (colorBuffer.getFormat() == tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNORM_INT8))
|
executeRGBA8ColorWrite(groupFirstFragNdx, numSamplesPerFragment, inputFragments, colorBuffer);
|
else
|
executeColorWrite(groupFirstFragNdx, numSamplesPerFragment, inputFragments, sRGBTarget, colorBuffer);
|
}
|
else if (state.colorMask[0] || state.colorMask[1] || state.colorMask[2] || state.colorMask[3])
|
executeMaskedColorWrite(groupFirstFragNdx, numSamplesPerFragment, inputFragments, colorMaskFactor, colorMaskNegationFactor, sRGBTarget, colorBuffer);
|
break;
|
}
|
case rr::GENERICVECTYPE_INT32:
|
// Write fragments
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
const Fragment& frag = inputFragments[groupFirstFragNdx + regSampleNdx/numSamplesPerFragment];
|
|
m_sampleRegister[regSampleNdx].signedValue = frag.value.get<deInt32>();
|
}
|
}
|
|
if (state.colorMask[0] || state.colorMask[1] || state.colorMask[2] || state.colorMask[3])
|
executeSignedValueWrite(groupFirstFragNdx, numSamplesPerFragment, inputFragments, state.colorMask, colorBuffer);
|
break;
|
|
case rr::GENERICVECTYPE_UINT32:
|
// Write fragments
|
for (int regSampleNdx = 0; regSampleNdx < SAMPLE_REGISTER_SIZE; regSampleNdx++)
|
{
|
if (m_sampleRegister[regSampleNdx].isAlive)
|
{
|
const Fragment& frag = inputFragments[groupFirstFragNdx + regSampleNdx/numSamplesPerFragment];
|
|
m_sampleRegister[regSampleNdx].unsignedValue = frag.value.get<deUint32>();
|
}
|
}
|
|
if (state.colorMask[0] || state.colorMask[1] || state.colorMask[2] || state.colorMask[3])
|
executeUnsignedValueWrite(groupFirstFragNdx, numSamplesPerFragment, inputFragments, state.colorMask, colorBuffer);
|
break;
|
|
default:
|
DE_ASSERT(DE_FALSE);
|
}
|
}
|
}
|
|
} // rr
|
