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
10 ////////////////////////////////////////////////////////////////////////////////
11
operator =(const GrGLContextInfo & that)12 GrGLContextInfo& GrGLContextInfo::operator= (const GrGLContextInfo& that) {
13 fInterface.reset(SkSafeRef(that.fInterface.get()));
14 fGLVersion = that.fGLVersion;
15 fGLSLGeneration = that.fGLSLGeneration;
16 fVendor = that.fVendor;
17 fRenderer = that.fRenderer;
18 fIsMesa = that.fIsMesa;
19 fIsChromium = that.fIsChromium;
20 *fGLCaps = *that.fGLCaps.get();
21 return *this;
22 }
23
initialize(const GrGLInterface * interface)24 bool GrGLContextInfo::initialize(const GrGLInterface* interface) {
25 this->reset();
26 // We haven't validated the GrGLInterface yet, so check for GetString
27 // function pointer
28 if (interface->fFunctions.fGetString) {
29 const GrGLubyte* verUByte;
30 GR_GL_CALL_RET(interface, verUByte, GetString(GR_GL_VERSION));
31 const char* ver = reinterpret_cast<const char*>(verUByte);
32
33 const GrGLubyte* rendererUByte;
34 GR_GL_CALL_RET(interface, rendererUByte, GetString(GR_GL_RENDERER));
35 const char* renderer = reinterpret_cast<const char*>(rendererUByte);
36
37 if (interface->validate()) {
38
39 fGLVersion = GrGLGetVersionFromString(ver);
40 if (GR_GL_INVALID_VER == fGLVersion) {
41 return false;
42 }
43
44 if (!GrGetGLSLGeneration(interface, &fGLSLGeneration)) {
45 return false;
46 }
47
48 fVendor = GrGLGetVendor(interface);
49
50 /*
51 * Qualcomm drivers have a horrendous bug with some drivers. Though they claim to
52 * support GLES 3.00, some perfectly valid GLSL300 shaders will only compile with
53 * #version 100, and will fail to compile with #version 300 es. In the long term, we
54 * need to lock this down to a specific driver version.
55 */
56 if (kQualcomm_GrGLVendor == fVendor) {
57 fGLSLGeneration = k110_GrGLSLGeneration;
58 }
59
60 fRenderer = GrGLGetRendererFromString(renderer);
61
62 fIsMesa = GrGLIsMesaFromVersionString(ver);
63
64 fIsChromium = GrGLIsChromiumFromRendererString(renderer);
65
66 // This must occur before caps init.
67 fInterface.reset(SkRef(interface));
68
69 return fGLCaps->init(*this, interface);
70 }
71 }
72 return false;
73 }
74
isInitialized() const75 bool GrGLContextInfo::isInitialized() const { return SkToBool(fInterface.get()); }
76
reset()77 void GrGLContextInfo::reset() {
78 fInterface.reset(NULL);
79 fGLVersion = GR_GL_VER(0, 0);
80 fGLSLGeneration = static_cast<GrGLSLGeneration>(0);
81 fVendor = kOther_GrGLVendor;
82 fRenderer = kOther_GrGLRenderer;
83 fIsMesa = false;
84 fIsChromium = false;
85 fGLCaps->reset();
86 }
87