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- /*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "src/gpu/gl/GrGLContext.h"
- #include "src/gpu/gl/GrGLGLSL.h"
- #include "src/sksl/SkSLCompiler.h"
- #ifdef SK_BUILD_FOR_ANDROID
- #include <sys/system_properties.h>
- #endif
- ////////////////////////////////////////////////////////////////////////////////
- std::unique_ptr<GrGLContext> GrGLContext::Make(sk_sp<const GrGLInterface> interface,
- const GrContextOptions& options) {
- if (!interface->validate()) {
- return nullptr;
- }
- const GrGLubyte* verUByte;
- GR_GL_CALL_RET(interface.get(), verUByte, GetString(GR_GL_VERSION));
- const char* ver = reinterpret_cast<const char*>(verUByte);
- const GrGLubyte* rendererUByte;
- GR_GL_CALL_RET(interface.get(), rendererUByte, GetString(GR_GL_RENDERER));
- const char* renderer = reinterpret_cast<const char*>(rendererUByte);
- ConstructorArgs args;
- args.fGLVersion = GrGLGetVersionFromString(ver);
- if (GR_GL_INVALID_VER == args.fGLVersion) {
- return nullptr;
- }
- if (!GrGLGetGLSLGeneration(interface.get(), &args.fGLSLGeneration)) {
- return nullptr;
- }
- args.fVendor = GrGLGetVendor(interface.get());
- args.fRenderer = GrGLGetRendererFromStrings(renderer, interface->fExtensions);
- GrGLGetANGLEInfoFromString(renderer, &args.fANGLEBackend, &args.fANGLEVendor,
- &args.fANGLERenderer);
- /*
- * Qualcomm drivers for the 3xx series have a horrendous bug with some drivers. Though they
- * claim to support GLES 3.00, some perfectly valid GLSL300 shaders will only compile with
- * #version 100, and will fail to compile with #version 300 es. In the long term, we
- * need to lock this down to a specific driver version.
- * ?????/2019 - Qualcomm has fixed this for Android O+ devices (API 26+)
- * ?????/2015 - This bug is still present in Lollipop pre-mr1
- * 06/18/2015 - This bug does not affect the nexus 6 (which has an Adreno 4xx).
- */
- #ifdef SK_BUILD_FOR_ANDROID
- if (!options.fDisableDriverCorrectnessWorkarounds &&
- kAdreno3xx_GrGLRenderer == args.fRenderer) {
- char androidAPIVersion[PROP_VALUE_MAX];
- int strLength = __system_property_get("ro.build.version.sdk", androidAPIVersion);
- if (strLength == 0 || atoi(androidAPIVersion) < 26) {
- args.fGLSLGeneration = k110_GrGLSLGeneration;
- }
- }
- #endif
- // Many ES3 drivers only advertise the ES2 image_external extension, but support the _essl3
- // extension, and require that it be enabled to work with ESSL3. Other devices require the ES2
- // extension to be enabled, even when using ESSL3. Some devices appear to only support the ES2
- // extension. As an extreme (optional) solution, we can fallback to using ES2 shading language
- // if we want to prioritize external texture support. skbug.com/7713
- if (GR_IS_GR_GL_ES(interface->fStandard) &&
- options.fPreferExternalImagesOverES3 &&
- !options.fDisableDriverCorrectnessWorkarounds &&
- interface->hasExtension("GL_OES_EGL_image_external") &&
- args.fGLSLGeneration >= k330_GrGLSLGeneration &&
- !interface->hasExtension("GL_OES_EGL_image_external_essl3") &&
- !interface->hasExtension("OES_EGL_image_external_essl3")) {
- args.fGLSLGeneration = k110_GrGLSLGeneration;
- }
- GrGLGetDriverInfo(interface->fStandard, args.fVendor, renderer, ver,
- &args.fDriver, &args.fDriverVersion);
- args.fContextOptions = &options;
- args.fInterface = std::move(interface);
- return std::unique_ptr<GrGLContext>(new GrGLContext(std::move(args)));
- }
- GrGLContext::~GrGLContext() {
- delete fCompiler;
- }
- SkSL::Compiler* GrGLContext::compiler() const {
- if (!fCompiler) {
- fCompiler = new SkSL::Compiler();
- }
- return fCompiler;
- }
- GrGLContextInfo::GrGLContextInfo(ConstructorArgs&& args) {
- fInterface = std::move(args.fInterface);
- fGLVersion = args.fGLVersion;
- fGLSLGeneration = args.fGLSLGeneration;
- fVendor = args.fVendor;
- fRenderer = args.fRenderer;
- fDriver = args.fDriver;
- fDriverVersion = args.fDriverVersion;
- fANGLEBackend = args.fANGLEBackend;
- fANGLEVendor = args.fANGLEVendor;
- fANGLERenderer = args.fANGLERenderer;
- fGLCaps = sk_make_sp<GrGLCaps>(*args.fContextOptions, *this, fInterface.get());
- }
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