OLD | NEW |
| (Empty) |
1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include <EGL/egl.h> | |
6 #include <EGL/eglext.h> | |
7 #include <gdk/gdkx.h> | |
8 #include <gtk/gtk.h> | |
9 | |
10 extern "C" { | |
11 #if defined(GLES2_CONFORM_SUPPORT_ONLY) | |
12 #include "gpu/gles2_conform_support/gtf/gtf_stubs.h" | |
13 #else | |
14 #include "third_party/gles2_conform/GTF_ES/glsl/GTF/Source/eglNative.h" | |
15 #endif | |
16 } | |
17 | |
18 | |
19 GTFbool GTFNativeCreateDisplay(EGLNativeDisplayType *pNativeDisplay) { | |
20 int argc = 0; | |
21 char **argv = NULL; | |
22 gtk_init(&argc, &argv); | |
23 *pNativeDisplay = GDK_DISPLAY();; | |
24 return *pNativeDisplay ? GTFtrue : GTFfalse; | |
25 } | |
26 | |
27 void GTFNativeDestroyDisplay(EGLNativeDisplayType nativeDisplay) { | |
28 gtk_exit(0); | |
29 } | |
30 | |
31 GTFbool GTFNativeCreateWindow(EGLNativeDisplayType nativeDisplay, | |
32 EGLDisplay eglDisplay, EGLConfig eglConfig, | |
33 const char* title, int width, int height, | |
34 EGLNativeWindowType *pNativeWindow) { | |
35 #ifdef CHROMEOS_GLES2_CONFORMANCE | |
36 // Due to the behavior of ChromeOS window manager, which always resize the | |
37 // top level window etc, we had to create a popup window. | |
38 GtkWidget* hwnd = gtk_window_new(GTK_WINDOW_POPUP); | |
39 #else | |
40 GtkWidget* hwnd = gtk_window_new(GTK_WINDOW_TOPLEVEL); | |
41 #endif | |
42 | |
43 gtk_window_set_title(GTK_WINDOW(hwnd), title); | |
44 gtk_window_set_default_size(GTK_WINDOW(hwnd), width, height); | |
45 gtk_widget_set_double_buffered(hwnd, FALSE); | |
46 gtk_widget_set_app_paintable(hwnd, TRUE); | |
47 | |
48 // We had to enter gtk main loop to realize the window on ChromeOS. | |
49 gtk_widget_show_now(hwnd); | |
50 | |
51 *pNativeWindow = GDK_WINDOW_XWINDOW(hwnd->window); | |
52 | |
53 return GTFtrue; | |
54 } | |
55 | |
56 void GTFNativeDestroyWindow(EGLNativeDisplayType nativeDisplay, | |
57 EGLNativeWindowType nativeWindow) { | |
58 GdkWindow* window = gdk_window_lookup(nativeWindow); | |
59 gpointer widget = NULL; | |
60 gdk_window_get_user_data(window, &widget); | |
61 gtk_widget_destroy(GTK_WIDGET(widget)); | |
62 } | |
63 | |
64 EGLImageKHR GTFCreateEGLImage(int width, int height, | |
65 GLenum format, GLenum type) { | |
66 PFNEGLCREATEIMAGEKHRPROC egl_create_image_khr_; | |
67 egl_create_image_khr_ = reinterpret_cast<PFNEGLCREATEIMAGEKHRPROC> | |
68 (eglGetProcAddress("eglCreateImageKHR")); | |
69 | |
70 static const EGLint attrib[] = { | |
71 EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, | |
72 EGL_GL_TEXTURE_LEVEL_KHR, 0, | |
73 EGL_NONE | |
74 }; | |
75 | |
76 if (format != GL_RGBA && format != GL_RGB) | |
77 return static_cast<EGLImageKHR>(NULL); | |
78 | |
79 if (type != GL_UNSIGNED_BYTE) | |
80 return static_cast<EGLImageKHR>(NULL); | |
81 | |
82 GLuint texture; | |
83 glGenTextures(1, &texture); | |
84 glBindTexture(GL_TEXTURE_2D, texture); | |
85 glTexImage2D(GL_TEXTURE_2D, | |
86 0, | |
87 format, | |
88 width, | |
89 height, | |
90 0, | |
91 format, | |
92 type, | |
93 NULL); | |
94 | |
95 // Disable mip-maps because we do not require it. | |
96 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | |
97 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | |
98 | |
99 if(glGetError() != GL_NO_ERROR) | |
100 return static_cast<EGLImageKHR>(NULL); | |
101 | |
102 EGLImageKHR egl_image = | |
103 egl_create_image_khr_(eglGetCurrentDisplay(), | |
104 eglGetCurrentContext(), | |
105 EGL_GL_TEXTURE_2D_KHR, | |
106 reinterpret_cast<EGLClientBuffer>(texture), | |
107 attrib); | |
108 | |
109 if (eglGetError() == EGL_SUCCESS) | |
110 return egl_image; | |
111 else | |
112 return static_cast<EGLImageKHR>(NULL); | |
113 } | |
114 | |
115 void GTFDestroyEGLImage(EGLImageKHR image) { | |
116 PFNEGLDESTROYIMAGEKHRPROC egl_destroy_image_khr_; | |
117 egl_destroy_image_khr_ = reinterpret_cast<PFNEGLDESTROYIMAGEKHRPROC> | |
118 (eglGetProcAddress("eglDestroyImageKHR")); | |
119 | |
120 egl_destroy_image_khr_(eglGetCurrentDisplay(), image); | |
121 } | |
OLD | NEW |