gfx/skia/trunk/src/gpu/gl/GrGLContext.h@deefc01c0e14
gfx/skia/trunk/src/gpu/gl/GrGLContext.h
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
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 */
9 #ifndef GrGLContext_DEFINED
10 #define GrGLContext_DEFINED
12 #include "gl/GrGLExtensions.h"
13 #include "gl/GrGLInterface.h"
14 #include "GrGLCaps.h"
15 #include "GrGLSL.h"
16 #include "GrGLUtil.h"
18 #include "SkString.h"
20 /**
21 * Encapsulates information about an OpenGL context including the OpenGL
22 * version, the GrGLStandard type of the context, and GLSL version.
23 */
24 class GrGLContextInfo {
25 public:
26 /**
27 * Default constructor
28 */
29 GrGLContextInfo() {
30 fGLCaps.reset(SkNEW(GrGLCaps));
31 this->reset();
32 }
34 GrGLContextInfo(const GrGLContextInfo& that) {
35 fGLCaps.reset(SkNEW(GrGLCaps));
36 *this = that;
37 }
39 GrGLContextInfo& operator= (const GrGLContextInfo&);
41 /**
42 * Initializes a GrGLContextInfo from a GrGLInterface and the currently
43 * bound OpenGL context accessible by the GrGLInterface.
44 */
45 bool initialize(const GrGLInterface* interface);
46 bool isInitialized() const;
48 GrGLStandard standard() const { return fInterface->fStandard; }
49 GrGLVersion version() const { return fGLVersion; }
50 GrGLSLGeneration glslGeneration() const { return fGLSLGeneration; }
51 GrGLVendor vendor() const { return fVendor; }
52 GrGLRenderer renderer() const { return fRenderer; }
53 /** Is this a mesa-based driver. Does not mean it is the osmesa software rasterizer. */
54 bool isMesa() const { return fIsMesa; }
55 /** Are we running inside Chromium (using the command buffer)? We make some different tradeoffs
56 about what errors to check for because queries are synchronous. We should probably expose
57 this as an option for clients other than Chromium. */
58 bool isChromium() const { return fIsChromium; }
59 const GrGLCaps* caps() const { return fGLCaps.get(); }
60 GrGLCaps* caps() { return fGLCaps; }
61 bool hasExtension(const char* ext) const {
62 if (!this->isInitialized()) {
63 return false;
64 }
65 return fInterface->hasExtension(ext);
66 }
68 /**
69 * Reset the information
70 */
71 void reset();
73 protected:
74 SkAutoTUnref<const GrGLInterface> fInterface;
75 GrGLVersion fGLVersion;
76 GrGLSLGeneration fGLSLGeneration;
77 GrGLVendor fVendor;
78 GrGLRenderer fRenderer;
79 bool fIsMesa;
80 bool fIsChromium;
81 SkAutoTUnref<GrGLCaps> fGLCaps;
82 };
84 /**
85 * Extension of GrGLContextInfo that also provides access to GrGLInterface.
86 */
87 class GrGLContext : public GrGLContextInfo {
88 public:
89 /**
90 * Creates a GrGLContext from a GrGLInterface and the currently
91 * bound OpenGL context accessible by the GrGLInterface.
92 */
93 explicit GrGLContext(const GrGLInterface* interface) {
94 this->initialize(interface);
95 }
97 GrGLContext(const GrGLContext& that) : INHERITED(that) {}
99 GrGLContext& operator= (const GrGLContext& that) {
100 this->INHERITED::operator=(that);
101 return *this;
102 }
104 const GrGLInterface* interface() const { return fInterface.get(); }
106 private:
107 typedef GrGLContextInfo INHERITED;
108 };
110 #endif
