Coverage Report

Created: 2021-08-22 09:07

/src/skia/src/gpu/gl/GrGLContext.cpp
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/*
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 * Copyright 2013 Google Inc.
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 *
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 * Use of this source code is governed by a BSD-style license that can be
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 * found in the LICENSE file.
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 */
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#include "src/gpu/gl/GrGLContext.h"
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#include "include/gpu/GrContextOptions.h"
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#include "src/gpu/gl/GrGLGLSL.h"
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#ifdef SK_BUILD_FOR_ANDROID
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#include <sys/system_properties.h>
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#endif
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////////////////////////////////////////////////////////////////////////////////
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std::unique_ptr<GrGLContext> GrGLContext::Make(sk_sp<const GrGLInterface> interface,
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                                               const GrContextOptions& options) {
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    if (!interface->validate()) {
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        return nullptr;
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    }
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    ConstructorArgs args;
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    args.fDriverInfo = GrGLGetDriverInfo(interface.get());
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    if (args.fDriverInfo.fVersion == GR_GL_INVALID_VER) {
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        return nullptr;
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    }
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    if (!GrGLGetGLSLGeneration(args.fDriverInfo, &args.fGLSLGeneration)) {
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        return nullptr;
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    }
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    /*
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     * Qualcomm drivers for the 3xx series have a horrendous bug with some drivers. Though they
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     * claim to support GLES 3.00, some perfectly valid GLSL300 shaders will only compile with
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     * #version 100, and will fail to compile with #version 300 es.  In the long term, we
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     * need to lock this down to a specific driver version.
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     * ?????/2019 - Qualcomm has fixed this for Android O+ devices (API 26+)
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     * ?????/2015 - This bug is still present in Lollipop pre-mr1
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     * 06/18/2015 - This bug does not affect the nexus 6 (which has an Adreno 4xx).
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     */
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#ifdef SK_BUILD_FOR_ANDROID
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    if (!options.fDisableDriverCorrectnessWorkarounds &&
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        args.fDriverInfo.fRenderer == GrGLRenderer::kAdreno3xx) {
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        char androidAPIVersion[PROP_VALUE_MAX];
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        int strLength = __system_property_get("ro.build.version.sdk", androidAPIVersion);
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        if (strLength == 0 || atoi(androidAPIVersion) < 26) {
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            args.fGLSLGeneration = k110_GrGLSLGeneration;
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        }
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    }
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#endif
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    // Many ES3 drivers only advertise the ES2 image_external extension, but support the _essl3
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    // extension, and require that it be enabled to work with ESSL3. Other devices require the ES2
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    // extension to be enabled, even when using ESSL3. Some devices appear to only support the ES2
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    // extension. As an extreme (optional) solution, we can fallback to using ES2 shading language
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    // if we want to prioritize external texture support. skbug.com/7713
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    if (GR_IS_GR_GL_ES(interface->fStandard) &&
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        options.fPreferExternalImagesOverES3 &&
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        !options.fDisableDriverCorrectnessWorkarounds &&
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        interface->hasExtension("GL_OES_EGL_image_external") &&
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        args.fGLSLGeneration >= k330_GrGLSLGeneration &&
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        !interface->hasExtension("GL_OES_EGL_image_external_essl3") &&
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        !interface->hasExtension("OES_EGL_image_external_essl3")) {
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        args.fGLSLGeneration = k110_GrGLSLGeneration;
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    }
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    args.fContextOptions = &options;
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    args.fInterface = std::move(interface);
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    return std::unique_ptr<GrGLContext>(new GrGLContext(std::move(args)));
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}
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GrGLContext::~GrGLContext() {}
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GrGLContextInfo GrGLContextInfo::makeNonAngle() const {
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    GrGLContextInfo copy = *this;
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    if (fDriverInfo.fANGLEBackend == GrGLANGLEBackend::kUnknown) {
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        return copy;
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    }
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    copy.fDriverInfo.fVendor        = copy.fDriverInfo.fANGLEVendor;
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    copy.fDriverInfo.fDriver        = copy.fDriverInfo.fANGLEDriver;
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    copy.fDriverInfo.fDriverVersion = copy.fDriverInfo.fANGLEDriverVersion;
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    copy.fDriverInfo.fRenderer      = copy.fDriverInfo.fANGLERenderer;
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    copy.fDriverInfo.fANGLEBackend       = GrGLANGLEBackend::kUnknown;
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    copy.fDriverInfo.fANGLEVendor        = GrGLVendor::kOther;
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    copy.fDriverInfo.fANGLEDriver        = GrGLDriver::kUnknown;
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    copy.fDriverInfo.fANGLEDriverVersion = GR_GL_DRIVER_UNKNOWN_VER;
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    copy.fDriverInfo.fANGLERenderer      = GrGLRenderer::kOther;
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    return copy;
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}
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GrGLContextInfo::GrGLContextInfo(ConstructorArgs&& args) {
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    fInterface = std::move(args.fInterface);
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    fDriverInfo = args.fDriverInfo;
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    fGLSLGeneration = args.fGLSLGeneration;
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    fGLCaps = sk_make_sp<GrGLCaps>(*args.fContextOptions, *this, fInterface.get());
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}