diff options
Diffstat (limited to 'src/3rdparty/angle/src/libANGLE/renderer/d3d/CompilerD3D.cpp')
-rw-r--r-- | src/3rdparty/angle/src/libANGLE/renderer/d3d/CompilerD3D.cpp | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/CompilerD3D.cpp b/src/3rdparty/angle/src/libANGLE/renderer/d3d/CompilerD3D.cpp new file mode 100644 index 0000000000..a22757cf9f --- /dev/null +++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/CompilerD3D.cpp @@ -0,0 +1,128 @@ +// +// Copyright (c) 2014 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. +// + +// CompilerD3D.cpp: Implementation of the rx::CompilerD3D class. + +#include "libANGLE/renderer/d3d/CompilerD3D.h" + +#include "libANGLE/Caps.h" +#include "libANGLE/Data.h" + +#include "common/debug.h" + +namespace rx +{ + +// Global count of active shader compiler handles. Needed to know when to call ShInitialize and ShFinalize. +static size_t activeCompilerHandles = 0; + +CompilerD3D::CompilerD3D(const gl::Data &data, ShShaderOutput outputType) + : mSpec(data.clientVersion > 2 ? SH_GLES3_SPEC : SH_GLES2_SPEC), + mOutputType(outputType), + mResources(), + mFragmentCompiler(NULL), + mVertexCompiler(NULL) +{ + ASSERT(data.clientVersion == 2 || data.clientVersion == 3); + + const gl::Caps &caps = *data.caps; + const gl::Extensions &extensions = *data.extensions; + + ShInitBuiltInResources(&mResources); + mResources.MaxVertexAttribs = caps.maxVertexAttributes; + mResources.MaxVertexUniformVectors = caps.maxVertexUniformVectors; + mResources.MaxVaryingVectors = caps.maxVaryingVectors; + mResources.MaxVertexTextureImageUnits = caps.maxVertexTextureImageUnits; + mResources.MaxCombinedTextureImageUnits = caps.maxCombinedTextureImageUnits; + mResources.MaxTextureImageUnits = caps.maxTextureImageUnits; + mResources.MaxFragmentUniformVectors = caps.maxFragmentUniformVectors; + mResources.MaxDrawBuffers = caps.maxDrawBuffers; + mResources.OES_standard_derivatives = extensions.standardDerivatives; + mResources.EXT_draw_buffers = extensions.drawBuffers; + mResources.EXT_shader_texture_lod = 1; + // resources.OES_EGL_image_external = mRenderer->getShareHandleSupport() ? 1 : 0; // TODO: commented out until the extension is actually supported. + mResources.FragmentPrecisionHigh = 1; // Shader Model 2+ always supports FP24 (s16e7) which corresponds to highp + mResources.EXT_frag_depth = 1; // Shader Model 2+ always supports explicit depth output + + // GLSL ES 3.0 constants + mResources.MaxVertexOutputVectors = caps.maxVertexOutputComponents / 4; + mResources.MaxFragmentInputVectors = caps.maxFragmentInputComponents / 4; + mResources.MinProgramTexelOffset = caps.minProgramTexelOffset; + mResources.MaxProgramTexelOffset = caps.maxProgramTexelOffset; +} + +CompilerD3D::~CompilerD3D() +{ + release(); +} + +CompilerD3D *CompilerD3D::makeCompilerD3D(CompilerImpl *compiler) +{ + ASSERT(HAS_DYNAMIC_TYPE(CompilerD3D*, compiler)); + return static_cast<CompilerD3D*>(compiler); +} + +gl::Error CompilerD3D::release() +{ + if (mFragmentCompiler) + { + ShDestruct(mFragmentCompiler); + mFragmentCompiler = NULL; + + ASSERT(activeCompilerHandles > 0); + activeCompilerHandles--; + } + + if (mVertexCompiler) + { + ShDestruct(mVertexCompiler); + mVertexCompiler = NULL; + + ASSERT(activeCompilerHandles > 0); + activeCompilerHandles--; + } + + if (activeCompilerHandles == 0) + { + ShFinalize(); + } + + return gl::Error(GL_NO_ERROR); +} + +ShHandle CompilerD3D::getCompilerHandle(GLenum type) +{ + ShHandle *compiler = NULL; + switch (type) + { + case GL_VERTEX_SHADER: + compiler = &mVertexCompiler; + break; + + case GL_FRAGMENT_SHADER: + compiler = &mFragmentCompiler; + break; + + default: + UNREACHABLE(); + return NULL; + } + + if (!(*compiler)) + { + if (activeCompilerHandles == 0) + { + ShInitialize(); + } + + *compiler = ShConstructCompiler(type, mSpec, mOutputType, &mResources); + activeCompilerHandles++; + } + + return *compiler; +} + +} |