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Diffstat (limited to 'gfx/angle/src/libANGLE/renderer/d3d/d3d11/Clear11.cpp')
| -rwxr-xr-x | gfx/angle/src/libANGLE/renderer/d3d/d3d11/Clear11.cpp | 672 |
1 files changed, 672 insertions, 0 deletions
diff --git a/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Clear11.cpp b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Clear11.cpp new file mode 100755 index 000000000..f42a59ced --- /dev/null +++ b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Clear11.cpp @@ -0,0 +1,672 @@ +// +// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +// Clear11.cpp: Framebuffer clear utility class. + +#include "libANGLE/renderer/d3d/d3d11/Clear11.h" + +#include <algorithm> + +#include "libANGLE/FramebufferAttachment.h" +#include "libANGLE/formatutils.h" +#include "libANGLE/renderer/d3d/FramebufferD3D.h" +#include "libANGLE/renderer/d3d/d3d11/Renderer11.h" +#include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h" +#include "libANGLE/renderer/d3d/d3d11/RenderTarget11.h" +#include "libANGLE/renderer/d3d/d3d11/formatutils11.h" +#include "third_party/trace_event/trace_event.h" + +// Precompiled shaders +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/clearfloat11vs.h" +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/clearfloat11ps.h" +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/clearfloat11_fl9ps.h" + +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/clearuint11vs.h" +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/clearuint11ps.h" + +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/clearsint11vs.h" +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/clearsint11ps.h" + +namespace rx +{ + +template <typename T> +static void ApplyVertices(const gl::Extents &framebufferSize, + const gl::Rectangle *scissor, + const gl::Color<T> &color, + float depth, + void *buffer) +{ + d3d11::PositionDepthColorVertex<T> *vertices = + reinterpret_cast<d3d11::PositionDepthColorVertex<T> *>(buffer); + + float depthClear = gl::clamp01(depth); + float left = -1.0f; + float right = 1.0f; + float top = -1.0f; + float bottom = 1.0f; + + // Clip the quad coordinates to the scissor if needed + if (scissor != nullptr) + { + left = std::max(left, (scissor->x / float(framebufferSize.width)) * 2.0f - 1.0f); + right = std::min( + right, ((scissor->x + scissor->width) / float(framebufferSize.width)) * 2.0f - 1.0f); + top = std::max(top, ((framebufferSize.height - scissor->y - scissor->height) / + float(framebufferSize.height)) * + 2.0f - + 1.0f); + bottom = std::min( + bottom, + ((framebufferSize.height - scissor->y) / float(framebufferSize.height)) * 2.0f - 1.0f); + } + + d3d11::SetPositionDepthColorVertex<T>(vertices + 0, left, bottom, depthClear, color); + d3d11::SetPositionDepthColorVertex<T>(vertices + 1, left, top, depthClear, color); + d3d11::SetPositionDepthColorVertex<T>(vertices + 2, right, bottom, depthClear, color); + d3d11::SetPositionDepthColorVertex<T>(vertices + 3, right, top, depthClear, color); +} + +Clear11::ClearShader::ClearShader(DXGI_FORMAT colorType, + const char *inputLayoutName, + const BYTE *vsByteCode, + size_t vsSize, + const char *vsDebugName, + const BYTE *psByteCode, + size_t psSize, + const char *psDebugName) + : inputLayout(nullptr), + vertexShader(vsByteCode, vsSize, vsDebugName), + pixelShader(psByteCode, psSize, psDebugName) +{ + D3D11_INPUT_ELEMENT_DESC quadLayout[] = { + {"POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0}, + {"COLOR", 0, colorType, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0}, + }; + + inputLayout = new d3d11::LazyInputLayout(quadLayout, 2, vsByteCode, vsSize, inputLayoutName); +} + +Clear11::ClearShader::~ClearShader() +{ + SafeDelete(inputLayout); + vertexShader.release(); + pixelShader.release(); +} + +Clear11::Clear11(Renderer11 *renderer) + : mRenderer(renderer), + mClearBlendStates(StructLessThan<ClearBlendInfo>), + mFloatClearShader(nullptr), + mUintClearShader(nullptr), + mIntClearShader(nullptr), + mClearDepthStencilStates(StructLessThan<ClearDepthStencilInfo>), + mVertexBuffer(nullptr), + mRasterizerState(nullptr) +{ + TRACE_EVENT0("gpu.angle", "Clear11::Clear11"); + + HRESULT result; + ID3D11Device *device = renderer->getDevice(); + + D3D11_BUFFER_DESC vbDesc; + vbDesc.ByteWidth = sizeof(d3d11::PositionDepthColorVertex<float>) * 4; + vbDesc.Usage = D3D11_USAGE_DYNAMIC; + vbDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER; + vbDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE; + vbDesc.MiscFlags = 0; + vbDesc.StructureByteStride = 0; + + result = device->CreateBuffer(&vbDesc, nullptr, &mVertexBuffer); + ASSERT(SUCCEEDED(result)); + d3d11::SetDebugName(mVertexBuffer, "Clear11 masked clear vertex buffer"); + + D3D11_RASTERIZER_DESC rsDesc; + rsDesc.FillMode = D3D11_FILL_SOLID; + rsDesc.CullMode = D3D11_CULL_NONE; + rsDesc.FrontCounterClockwise = FALSE; + rsDesc.DepthBias = 0; + rsDesc.DepthBiasClamp = 0.0f; + rsDesc.SlopeScaledDepthBias = 0.0f; + rsDesc.DepthClipEnable = TRUE; + rsDesc.ScissorEnable = FALSE; + rsDesc.MultisampleEnable = FALSE; + rsDesc.AntialiasedLineEnable = FALSE; + + result = device->CreateRasterizerState(&rsDesc, &mRasterizerState); + ASSERT(SUCCEEDED(result)); + d3d11::SetDebugName(mRasterizerState, "Clear11 masked clear rasterizer state"); + + if (mRenderer->getRenderer11DeviceCaps().featureLevel <= D3D_FEATURE_LEVEL_9_3) + { + mFloatClearShader = + new ClearShader(DXGI_FORMAT_R32G32B32A32_FLOAT, "Clear11 Float IL", g_VS_ClearFloat, + ArraySize(g_VS_ClearFloat), "Clear11 Float VS", g_PS_ClearFloat_FL9, + ArraySize(g_PS_ClearFloat_FL9), "Clear11 Float PS"); + } + else + { + mFloatClearShader = + new ClearShader(DXGI_FORMAT_R32G32B32A32_FLOAT, "Clear11 Float IL", g_VS_ClearFloat, + ArraySize(g_VS_ClearFloat), "Clear11 Float VS", g_PS_ClearFloat, + ArraySize(g_PS_ClearFloat), "Clear11 Float PS"); + } + + if (renderer->isES3Capable()) + { + mUintClearShader = + new ClearShader(DXGI_FORMAT_R32G32B32A32_UINT, "Clear11 UINT IL", g_VS_ClearUint, + ArraySize(g_VS_ClearUint), "Clear11 UINT VS", g_PS_ClearUint, + ArraySize(g_PS_ClearUint), "Clear11 UINT PS"); + mIntClearShader = + new ClearShader(DXGI_FORMAT_R32G32B32A32_UINT, "Clear11 SINT IL", g_VS_ClearSint, + ArraySize(g_VS_ClearSint), "Clear11 SINT VS", g_PS_ClearSint, + ArraySize(g_PS_ClearSint), "Clear11 SINT PS"); + } +} + +Clear11::~Clear11() +{ + for (ClearBlendStateMap::iterator i = mClearBlendStates.begin(); i != mClearBlendStates.end(); + i++) + { + SafeRelease(i->second); + } + mClearBlendStates.clear(); + + SafeDelete(mFloatClearShader); + SafeDelete(mUintClearShader); + SafeDelete(mIntClearShader); + + for (ClearDepthStencilStateMap::iterator i = mClearDepthStencilStates.begin(); + i != mClearDepthStencilStates.end(); i++) + { + SafeRelease(i->second); + } + mClearDepthStencilStates.clear(); + + SafeRelease(mVertexBuffer); + SafeRelease(mRasterizerState); +} + +gl::Error Clear11::clearFramebuffer(const ClearParameters &clearParams, + const gl::FramebufferState &fboData) +{ + const auto &colorAttachments = fboData.getColorAttachments(); + const auto &drawBufferStates = fboData.getDrawBufferStates(); + const auto *depthAttachment = fboData.getDepthAttachment(); + const auto *stencilAttachment = fboData.getStencilAttachment(); + + ASSERT(colorAttachments.size() == drawBufferStates.size()); + + // Iterate over the color buffers which require clearing and determine if they can be + // cleared with ID3D11DeviceContext::ClearRenderTargetView or ID3D11DeviceContext1::ClearView. + // This requires: + // 1) The render target is being cleared to a float value (will be cast to integer when clearing + // integer + // render targets as expected but does not work the other way around) + // 2) The format of the render target has no color channels that are currently masked out. + // Clear the easy-to-clear buffers on the spot and accumulate the ones that require special + // work. + // + // If these conditions are met, and: + // - No scissored clear is needed, then clear using ID3D11DeviceContext::ClearRenderTargetView. + // - A scissored clear is needed then clear using ID3D11DeviceContext1::ClearView if available. + // Otherwise draw a quad. + // + // Also determine if the depth stencil can be cleared with + // ID3D11DeviceContext::ClearDepthStencilView + // by checking if the stencil write mask covers the entire stencil. + // + // To clear the remaining buffers, quads must be drawn containing an int, uint or float vertex + // color + // attribute. + + gl::Extents framebufferSize; + + const gl::FramebufferAttachment *colorAttachment = fboData.getFirstColorAttachment(); + if (colorAttachment != nullptr) + { + framebufferSize = colorAttachment->getSize(); + } + else if (depthAttachment != nullptr) + { + framebufferSize = depthAttachment->getSize(); + } + else if (stencilAttachment != nullptr) + { + framebufferSize = stencilAttachment->getSize(); + } + else + { + UNREACHABLE(); + return gl::Error(GL_INVALID_OPERATION); + } + + if (clearParams.scissorEnabled && (clearParams.scissor.x >= framebufferSize.width || + clearParams.scissor.y >= framebufferSize.height || + clearParams.scissor.x + clearParams.scissor.width <= 0 || + clearParams.scissor.y + clearParams.scissor.height <= 0)) + { + // Scissor is enabled and the scissor rectangle is outside the renderbuffer + return gl::Error(GL_NO_ERROR); + } + + bool needScissoredClear = + clearParams.scissorEnabled && + (clearParams.scissor.x > 0 || clearParams.scissor.y > 0 || + clearParams.scissor.x + clearParams.scissor.width < framebufferSize.width || + clearParams.scissor.y + clearParams.scissor.height < framebufferSize.height); + + std::vector<MaskedRenderTarget> maskedClearRenderTargets; + RenderTarget11 *maskedClearDepthStencil = nullptr; + + ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext(); + ID3D11DeviceContext1 *deviceContext1 = mRenderer->getDeviceContext1IfSupported(); + ID3D11Device *device = mRenderer->getDevice(); + + for (size_t colorAttachmentIndex = 0; colorAttachmentIndex < colorAttachments.size(); + colorAttachmentIndex++) + { + const gl::FramebufferAttachment &attachment = colorAttachments[colorAttachmentIndex]; + + if (clearParams.clearColor[colorAttachmentIndex] && attachment.isAttached() && + drawBufferStates[colorAttachmentIndex] != GL_NONE) + { + RenderTarget11 *renderTarget = nullptr; + ANGLE_TRY(attachment.getRenderTarget(&renderTarget)); + + const gl::InternalFormat &formatInfo = *attachment.getFormat().info; + + if (clearParams.colorClearType == GL_FLOAT && + !(formatInfo.componentType == GL_FLOAT || + formatInfo.componentType == GL_UNSIGNED_NORMALIZED || + formatInfo.componentType == GL_SIGNED_NORMALIZED)) + { + ERR("It is undefined behaviour to clear a render buffer which is not normalized " + "fixed point or floating-" + "point to floating point values (color attachment %u has internal format " + "0x%X).", + colorAttachmentIndex, attachment.getFormat().asSized()); + } + + if ((formatInfo.redBits == 0 || !clearParams.colorMaskRed) && + (formatInfo.greenBits == 0 || !clearParams.colorMaskGreen) && + (formatInfo.blueBits == 0 || !clearParams.colorMaskBlue) && + (formatInfo.alphaBits == 0 || !clearParams.colorMaskAlpha)) + { + // Every channel either does not exist in the render target or is masked out + continue; + } + else if ((!(mRenderer->getRenderer11DeviceCaps().supportsClearView) && + needScissoredClear) || + clearParams.colorClearType != GL_FLOAT || + (formatInfo.redBits > 0 && !clearParams.colorMaskRed) || + (formatInfo.greenBits > 0 && !clearParams.colorMaskGreen) || + (formatInfo.blueBits > 0 && !clearParams.colorMaskBlue) || + (formatInfo.alphaBits > 0 && !clearParams.colorMaskAlpha)) + { + // A masked clear is required, or a scissored clear is required and + // ID3D11DeviceContext1::ClearView is unavailable + MaskedRenderTarget maskAndRt; + bool clearColor = clearParams.clearColor[colorAttachmentIndex]; + maskAndRt.colorMask[0] = (clearColor && clearParams.colorMaskRed); + maskAndRt.colorMask[1] = (clearColor && clearParams.colorMaskGreen); + maskAndRt.colorMask[2] = (clearColor && clearParams.colorMaskBlue); + maskAndRt.colorMask[3] = (clearColor && clearParams.colorMaskAlpha); + maskAndRt.renderTarget = renderTarget; + maskedClearRenderTargets.push_back(maskAndRt); + } + else + { + // ID3D11DeviceContext::ClearRenderTargetView or ID3D11DeviceContext1::ClearView is + // possible + + ID3D11RenderTargetView *framebufferRTV = renderTarget->getRenderTargetView(); + if (!framebufferRTV) + { + return gl::Error(GL_OUT_OF_MEMORY, + "Internal render target view pointer unexpectedly null."); + } + + const auto &nativeFormat = renderTarget->getFormatSet().format(); + + // Check if the actual format has a channel that the internal format does not and + // set them to the default values + float clearValues[4] = { + ((formatInfo.redBits == 0 && nativeFormat.redBits > 0) + ? 0.0f + : clearParams.colorFClearValue.red), + ((formatInfo.greenBits == 0 && nativeFormat.greenBits > 0) + ? 0.0f + : clearParams.colorFClearValue.green), + ((formatInfo.blueBits == 0 && nativeFormat.blueBits > 0) + ? 0.0f + : clearParams.colorFClearValue.blue), + ((formatInfo.alphaBits == 0 && nativeFormat.alphaBits > 0) + ? 1.0f + : clearParams.colorFClearValue.alpha), + }; + + if (formatInfo.alphaBits == 1) + { + // Some drivers do not correctly handle calling Clear() on a format with 1-bit + // alpha. They can incorrectly round all non-zero values up to 1.0f. Note that + // WARP does not do this. We should handle the rounding for them instead. + clearValues[3] = (clearParams.colorFClearValue.alpha >= 0.5f) ? 1.0f : 0.0f; + } + + if (needScissoredClear) + { + // We shouldn't reach here if deviceContext1 is unavailable. + ASSERT(deviceContext1); + + D3D11_RECT rect; + rect.left = clearParams.scissor.x; + rect.right = clearParams.scissor.x + clearParams.scissor.width; + rect.top = clearParams.scissor.y; + rect.bottom = clearParams.scissor.y + clearParams.scissor.height; + + deviceContext1->ClearView(framebufferRTV, clearValues, &rect, 1); + + if (mRenderer->getWorkarounds().callClearTwice) + { + deviceContext1->ClearView(framebufferRTV, clearValues, &rect, 1); + } + } + else + { + deviceContext->ClearRenderTargetView(framebufferRTV, clearValues); + + if (mRenderer->getWorkarounds().callClearTwice) + { + deviceContext->ClearRenderTargetView(framebufferRTV, clearValues); + } + } + } + } + } + + if (clearParams.clearDepth || clearParams.clearStencil) + { + const gl::FramebufferAttachment *attachment = + (depthAttachment != nullptr) ? depthAttachment : stencilAttachment; + ASSERT(attachment != nullptr); + + RenderTarget11 *renderTarget = nullptr; + ANGLE_TRY(attachment->getRenderTarget(&renderTarget)); + + const auto &nativeFormat = renderTarget->getFormatSet().format(); + + unsigned int stencilUnmasked = + (stencilAttachment != nullptr) ? (1 << nativeFormat.stencilBits) - 1 : 0; + bool needMaskedStencilClear = + clearParams.clearStencil && + (clearParams.stencilWriteMask & stencilUnmasked) != stencilUnmasked; + + if (needScissoredClear || needMaskedStencilClear) + { + maskedClearDepthStencil = renderTarget; + } + else + { + ID3D11DepthStencilView *framebufferDSV = renderTarget->getDepthStencilView(); + if (!framebufferDSV) + { + return gl::Error(GL_OUT_OF_MEMORY, + "Internal depth stencil view pointer unexpectedly null."); + } + + UINT clearFlags = (clearParams.clearDepth ? D3D11_CLEAR_DEPTH : 0) | + (clearParams.clearStencil ? D3D11_CLEAR_STENCIL : 0); + FLOAT depthClear = gl::clamp01(clearParams.depthClearValue); + UINT8 stencilClear = clearParams.stencilClearValue & 0xFF; + + deviceContext->ClearDepthStencilView(framebufferDSV, clearFlags, depthClear, + stencilClear); + } + } + + if (maskedClearRenderTargets.empty() && !maskedClearDepthStencil) + { + return gl::NoError(); + } + + // To clear the render targets and depth stencil in one pass: + // + // Render a quad clipped to the scissor rectangle which draws the clear color and a blend + // state that will perform the required color masking. + // + // The quad's depth is equal to the depth clear value with a depth stencil state that + // will enable or disable depth test/writes if the depth buffer should be cleared or not. + // + // The rasterizer state's stencil is set to always pass or fail based on if the stencil + // should be cleared or not with a stencil write mask of the stencil clear value. + // + // ====================================================================================== + // + // Luckily, the gl spec (ES 3.0.2 pg 183) states that the results of clearing a render- + // buffer that is not normalized fixed point or floating point with floating point values + // are undefined so we can just write floats to them and D3D11 will bit cast them to + // integers. + // + // Also, we don't have to worry about attempting to clear a normalized fixed/floating point + // buffer with integer values because there is no gl API call which would allow it, + // glClearBuffer* calls only clear a single renderbuffer at a time which is verified to + // be a compatible clear type. + + // Bind all the render targets which need clearing + ASSERT(maskedClearRenderTargets.size() <= mRenderer->getNativeCaps().maxDrawBuffers); + std::vector<ID3D11RenderTargetView *> rtvs(maskedClearRenderTargets.size()); + for (unsigned int i = 0; i < maskedClearRenderTargets.size(); i++) + { + RenderTarget11 *renderTarget = maskedClearRenderTargets[i].renderTarget; + ID3D11RenderTargetView *rtv = renderTarget->getRenderTargetView(); + if (!rtv) + { + return gl::Error(GL_OUT_OF_MEMORY, + "Internal render target view pointer unexpectedly null."); + } + + rtvs[i] = rtv; + } + ID3D11DepthStencilView *dsv = + maskedClearDepthStencil ? maskedClearDepthStencil->getDepthStencilView() : nullptr; + + ID3D11BlendState *blendState = getBlendState(maskedClearRenderTargets); + const FLOAT blendFactors[4] = {1.0f, 1.0f, 1.0f, 1.0f}; + const UINT sampleMask = 0xFFFFFFFF; + + ID3D11DepthStencilState *dsState = getDepthStencilState(clearParams); + const UINT stencilClear = clearParams.stencilClearValue & 0xFF; + + // Set the vertices + UINT vertexStride = 0; + const UINT startIdx = 0; + ClearShader *shader = nullptr; + D3D11_MAPPED_SUBRESOURCE mappedResource; + HRESULT result = + deviceContext->Map(mVertexBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource); + if (FAILED(result)) + { + return gl::Error(GL_OUT_OF_MEMORY, + "Failed to map internal masked clear vertex buffer, HRESULT: 0x%X.", + result); + } + + const gl::Rectangle *scissorPtr = clearParams.scissorEnabled ? &clearParams.scissor : nullptr; + switch (clearParams.colorClearType) + { + case GL_FLOAT: + ApplyVertices(framebufferSize, scissorPtr, clearParams.colorFClearValue, + clearParams.depthClearValue, mappedResource.pData); + vertexStride = sizeof(d3d11::PositionDepthColorVertex<float>); + shader = mFloatClearShader; + break; + + case GL_UNSIGNED_INT: + ApplyVertices(framebufferSize, scissorPtr, clearParams.colorUIClearValue, + clearParams.depthClearValue, mappedResource.pData); + vertexStride = sizeof(d3d11::PositionDepthColorVertex<unsigned int>); + shader = mUintClearShader; + break; + + case GL_INT: + ApplyVertices(framebufferSize, scissorPtr, clearParams.colorIClearValue, + clearParams.depthClearValue, mappedResource.pData); + vertexStride = sizeof(d3d11::PositionDepthColorVertex<int>); + shader = mIntClearShader; + break; + + default: + UNREACHABLE(); + break; + } + + deviceContext->Unmap(mVertexBuffer, 0); + + // Set the viewport to be the same size as the framebuffer + D3D11_VIEWPORT viewport; + viewport.TopLeftX = 0; + viewport.TopLeftY = 0; + viewport.Width = static_cast<FLOAT>(framebufferSize.width); + viewport.Height = static_cast<FLOAT>(framebufferSize.height); + viewport.MinDepth = 0; + viewport.MaxDepth = 1; + deviceContext->RSSetViewports(1, &viewport); + + // Apply state + deviceContext->OMSetBlendState(blendState, blendFactors, sampleMask); + deviceContext->OMSetDepthStencilState(dsState, stencilClear); + deviceContext->RSSetState(mRasterizerState); + + // Apply shaders + deviceContext->IASetInputLayout(shader->inputLayout->resolve(device)); + deviceContext->VSSetShader(shader->vertexShader.resolve(device), nullptr, 0); + deviceContext->PSSetShader(shader->pixelShader.resolve(device), nullptr, 0); + deviceContext->GSSetShader(nullptr, nullptr, 0); + + // Apply vertex buffer + deviceContext->IASetVertexBuffers(0, 1, &mVertexBuffer, &vertexStride, &startIdx); + deviceContext->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP); + + // Apply render targets + mRenderer->getStateManager()->setOneTimeRenderTargets(rtvs, dsv); + + // Draw the clear quad + deviceContext->Draw(4, 0); + + // Clean up + mRenderer->markAllStateDirty(); + + return gl::NoError(); +} + +ID3D11BlendState *Clear11::getBlendState(const std::vector<MaskedRenderTarget> &rts) +{ + ClearBlendInfo blendKey = {}; + for (unsigned int i = 0; i < D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT; i++) + { + if (i < rts.size()) + { + RenderTarget11 *rt = rts[i].renderTarget; + const gl::InternalFormat &formatInfo = + gl::GetInternalFormatInfo(rt->getInternalFormat()); + + blendKey.maskChannels[i][0] = (rts[i].colorMask[0] && formatInfo.redBits > 0); + blendKey.maskChannels[i][1] = (rts[i].colorMask[1] && formatInfo.greenBits > 0); + blendKey.maskChannels[i][2] = (rts[i].colorMask[2] && formatInfo.blueBits > 0); + blendKey.maskChannels[i][3] = (rts[i].colorMask[3] && formatInfo.alphaBits > 0); + } + else + { + blendKey.maskChannels[i][0] = false; + blendKey.maskChannels[i][1] = false; + blendKey.maskChannels[i][2] = false; + blendKey.maskChannels[i][3] = false; + } + } + + ClearBlendStateMap::const_iterator i = mClearBlendStates.find(blendKey); + if (i != mClearBlendStates.end()) + { + return i->second; + } + else + { + D3D11_BLEND_DESC blendDesc = {0}; + blendDesc.AlphaToCoverageEnable = FALSE; + blendDesc.IndependentBlendEnable = (rts.size() > 1) ? TRUE : FALSE; + + for (unsigned int j = 0; j < D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT; j++) + { + blendDesc.RenderTarget[j].BlendEnable = FALSE; + blendDesc.RenderTarget[j].RenderTargetWriteMask = gl_d3d11::ConvertColorMask( + blendKey.maskChannels[j][0], blendKey.maskChannels[j][1], + blendKey.maskChannels[j][2], blendKey.maskChannels[j][3]); + } + + ID3D11Device *device = mRenderer->getDevice(); + ID3D11BlendState *blendState = nullptr; + HRESULT result = device->CreateBlendState(&blendDesc, &blendState); + if (FAILED(result) || !blendState) + { + ERR("Unable to create a ID3D11BlendState, HRESULT: 0x%X.", result); + return nullptr; + } + + mClearBlendStates[blendKey] = blendState; + + return blendState; + } +} + +ID3D11DepthStencilState *Clear11::getDepthStencilState(const ClearParameters &clearParams) +{ + ClearDepthStencilInfo dsKey = {0}; + dsKey.clearDepth = clearParams.clearDepth; + dsKey.clearStencil = clearParams.clearStencil; + dsKey.stencilWriteMask = clearParams.stencilWriteMask & 0xFF; + + ClearDepthStencilStateMap::const_iterator i = mClearDepthStencilStates.find(dsKey); + if (i != mClearDepthStencilStates.end()) + { + return i->second; + } + else + { + D3D11_DEPTH_STENCIL_DESC dsDesc = {0}; + dsDesc.DepthEnable = dsKey.clearDepth ? TRUE : FALSE; + dsDesc.DepthWriteMask = + dsKey.clearDepth ? D3D11_DEPTH_WRITE_MASK_ALL : D3D11_DEPTH_WRITE_MASK_ZERO; + dsDesc.DepthFunc = D3D11_COMPARISON_ALWAYS; + dsDesc.StencilEnable = dsKey.clearStencil ? TRUE : FALSE; + dsDesc.StencilReadMask = 0; + dsDesc.StencilWriteMask = dsKey.stencilWriteMask; + dsDesc.FrontFace.StencilFailOp = D3D11_STENCIL_OP_REPLACE; + dsDesc.FrontFace.StencilDepthFailOp = D3D11_STENCIL_OP_REPLACE; + dsDesc.FrontFace.StencilPassOp = D3D11_STENCIL_OP_REPLACE; + dsDesc.FrontFace.StencilFunc = D3D11_COMPARISON_ALWAYS; + dsDesc.BackFace.StencilFailOp = D3D11_STENCIL_OP_REPLACE; + dsDesc.BackFace.StencilDepthFailOp = D3D11_STENCIL_OP_REPLACE; + dsDesc.BackFace.StencilPassOp = D3D11_STENCIL_OP_REPLACE; + dsDesc.BackFace.StencilFunc = D3D11_COMPARISON_ALWAYS; + + ID3D11Device *device = mRenderer->getDevice(); + ID3D11DepthStencilState *dsState = nullptr; + HRESULT result = device->CreateDepthStencilState(&dsDesc, &dsState); + if (FAILED(result) || !dsState) + { + ERR("Unable to create a ID3D11DepthStencilState, HRESULT: 0x%X.", result); + return nullptr; + } + + mClearDepthStencilStates[dsKey] = dsState; + + return dsState; + } +} +} |