1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* Copyright 2010, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef GLUtils_h
#define GLUtils_h
#if USE(ACCELERATED_COMPOSITING)
#include "SkBitmap.h"
#include "SkMatrix.h"
#include "TransformationMatrix.h"
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
namespace WebCore {
class GLUtils {
public:
// Matrix utilities
static void toGLMatrix(GLfloat* flattened, const TransformationMatrix& matrix);
static void toSkMatrix(SkMatrix& skmatrix, const TransformationMatrix& matrix);
static void setOrthographicMatrix(TransformationMatrix& ortho, float left, float top,
float right, float bottom, float nearZ, float farZ);
// GL & EGL error checks
static void checkEglError(const char* op, EGLBoolean returnVal = EGL_TRUE);
static bool checkGlErrorOn(void* p, const char* op);
static bool checkGlError(const char* op);
// GL & EGL extension checks
static bool isEGLImageSupported();
static bool isEGLFenceSyncSupported();
// Texture utilities
static EGLContext createBackgroundContext(EGLContext sharedContext);
static void deleteTexture(GLuint* texture);
static GLuint createSampleTexture();
static void createTextureWithBitmap(GLuint texture, SkBitmap& bitmap, GLint filter = GL_LINEAR);
static void updateTextureWithBitmap(GLuint texture, SkBitmap& bitmap, GLint filter = GL_LINEAR);
static void createEGLImageFromTexture(GLuint texture, EGLImageKHR* image);
static void createTextureFromEGLImage(GLuint texture, EGLImageKHR image, GLint filter = GL_LINEAR);
};
} // namespace WebCore
#endif // USE(ACCELERATED_COMPOSITING)
#endif // GLUtils_h
|
