1 /*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "GrGLContext.h"
9 #include "GrGLGLSL.h"
10
11 ////////////////////////////////////////////////////////////////////////////////
12
Create(const GrGLInterface * interface,const GrContextOptions & options)13 GrGLContext* GrGLContext::Create(const GrGLInterface* interface, const GrContextOptions& options) {
14 // We haven't validated the GrGLInterface yet, so check for GetString function pointer
15 if (!interface->fFunctions.fGetString) {
16 return nullptr;
17 }
18 ConstructorArgs args;
19 args.fInterface = interface;
20
21 const GrGLubyte* verUByte;
22 GR_GL_CALL_RET(interface, verUByte, GetString(GR_GL_VERSION));
23 const char* ver = reinterpret_cast<const char*>(verUByte);
24
25 const GrGLubyte* rendererUByte;
26 GR_GL_CALL_RET(interface, rendererUByte, GetString(GR_GL_RENDERER));
27 const char* renderer = reinterpret_cast<const char*>(rendererUByte);
28
29 if (!interface->validate()) {
30 return nullptr;
31 }
32
33 args.fGLVersion = GrGLGetVersionFromString(ver);
34 if (GR_GL_INVALID_VER == args.fGLVersion) {
35 return nullptr;
36 }
37
38 if (!GrGLGetGLSLGeneration(interface, &args.fGLSLGeneration)) {
39 return nullptr;
40 }
41
42 args.fVendor = GrGLGetVendor(interface);
43
44 args.fRenderer = GrGLGetRendererFromString(renderer);
45
46 /*
47 * Qualcomm drivers for the 3xx series have a horrendous bug with some drivers. Though they
48 * claim to support GLES 3.00, some perfectly valid GLSL300 shaders will only compile with
49 * #version 100, and will fail to compile with #version 300 es. In the long term, we
50 * need to lock this down to a specific driver version.
51 * ?????/2015 - This bug is still present in Lollipop pre-mr1
52 * 06/18/2015 - This bug does not affect the nexus 6 (which has an Adreno 4xx).
53 */
54 if (kAdreno3xx_GrGLRenderer == args.fRenderer) {
55 args.fGLSLGeneration = k110_GrGLSLGeneration;
56 }
57
58 GrGLGetDriverInfo(interface->fStandard, args.fVendor, renderer, ver,
59 &args.fDriver, &args.fDriverVersion);
60
61 args.fContextOptions = &options;
62
63 return new GrGLContext(args);
64 }
65
GrGLContextInfo(const ConstructorArgs & args)66 GrGLContextInfo::GrGLContextInfo(const ConstructorArgs& args) {
67 fInterface.reset(SkRef(args.fInterface));
68 fGLVersion = args.fGLVersion;
69 fGLSLGeneration = args.fGLSLGeneration;
70 fVendor = args.fVendor;
71 fRenderer = args.fRenderer;
72 fDriver = args.fDriver;
73 fDriverVersion = args.fDriverVersion;
74
75 fGLCaps.reset(new GrGLCaps(*args.fContextOptions, *this, fInterface));
76 }
77