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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 "GrGLContext.h"
#include "GrGLGLSL.h"
////////////////////////////////////////////////////////////////////////////////
GrGLContext* GrGLContext::Create(const GrGLInterface* interface, const GrContextOptions& options) {
// We haven't validated the GrGLInterface yet, so check for GetString function pointer
if (!interface->fFunctions.fGetString) {
return nullptr;
}
ConstructorArgs args;
args.fInterface = interface;
const GrGLubyte* verUByte;
GR_GL_CALL_RET(interface, verUByte, GetString(GR_GL_VERSION));
const char* ver = reinterpret_cast<const char*>(verUByte);
const GrGLubyte* rendererUByte;
GR_GL_CALL_RET(interface, rendererUByte, GetString(GR_GL_RENDERER));
const char* renderer = reinterpret_cast<const char*>(rendererUByte);
if (!interface->validate()) {
return nullptr;
}
args.fGLVersion = GrGLGetVersionFromString(ver);
if (GR_GL_INVALID_VER == args.fGLVersion) {
return nullptr;
}
if (!GrGLGetGLSLGeneration(interface, &args.fGLSLGeneration)) {
return nullptr;
}
args.fVendor = GrGLGetVendor(interface);
args.fRenderer = GrGLGetRendererFromString(renderer);
/*
* 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.
* ?????/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).
*/
if (kAdreno3xx_GrGLRenderer == args.fRenderer) {
args.fGLSLGeneration = k110_GrGLSLGeneration;
}
GrGLGetDriverInfo(interface->fStandard, args.fVendor, renderer, ver,
&args.fDriver, &args.fDriverVersion);
args.fContextOptions = &options;
return new GrGLContext(args);
}
GrGLContextInfo::GrGLContextInfo(const ConstructorArgs& args) {
fInterface.reset(SkRef(args.fInterface));
fGLVersion = args.fGLVersion;
fGLSLGeneration = args.fGLSLGeneration;
fVendor = args.fVendor;
fRenderer = args.fRenderer;
fDriver = args.fDriver;
fDriverVersion = args.fDriverVersion;
fGLCaps.reset(new GrGLCaps(*args.fContextOptions, *this, fInterface));
}
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