lxdream 0.9.1| filename | src/drivers/video_egl.c |
| changeset | 1245:01e0020adf88 |
| next | 1251:b8ab59d39756 |
| author | nkeynes |
| date | Fri Mar 02 23:49:10 2012 +1000 (12 years ago) |
| permissions | -rw-r--r-- |
| last change | Android WIP: * Rename gui_jni.c to gui_android.c - now quite android specific. * Implement generic EGL driver with very minimal Java wrapper * Run emulation in separate thread, and implement simple queue for inter-thread communication. * Add menu/action-bar items for start + reset |
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1 /**
2 * $Id$
3 *
4 * Window management using EGL.
5 *
6 * Copyright (c) 2012 Nathan Keynes.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
19 #include "lxdream.h"
20 #include "display.h"
21 #include "video_egl.h"
22 #include "video_gl.h"
23 #include "pvr2/pvr2.h"
24 #include "pvr2/glutil.h"
26 static const char *getEGLErrorString( EGLint code )
27 {
28 switch( code ) {
29 case EGL_SUCCESS: return "OK";
30 case EGL_NOT_INITIALIZED: return "EGL not initialized";
31 case EGL_BAD_ACCESS: return "Bad access";
32 case EGL_BAD_ALLOC: return "Allocation failed";
33 case EGL_BAD_ATTRIBUTE: return "Bad attribute";
34 case EGL_BAD_CONTEXT: return "Bad context";
35 case EGL_BAD_CONFIG: return "Bad config";
36 case EGL_BAD_CURRENT_SURFACE: return "Bad current surface";
37 case EGL_BAD_DISPLAY: return "Bad display";
38 case EGL_BAD_MATCH: return "Bad match";
39 case EGL_BAD_PARAMETER: return "Bad parameter";
40 case EGL_BAD_NATIVE_PIXMAP: return "Bad native pixmap";
41 case EGL_BAD_NATIVE_WINDOW: return "Bad native window";
42 default: return "Unknown error";
43 }
44 }
47 static void logEGLError(const char *msg)
48 {
49 EGLint error = eglGetError();
50 const char *errorStr = getEGLErrorString(error);
52 ERROR( "%s: %s (%x)", msg, errorStr, error );
53 }
55 static const EGLint RGB888_attributes[] = {
56 EGL_RED_SIZE, 8,
57 EGL_GREEN_SIZE, 8,
58 EGL_BLUE_SIZE, 8,
59 EGL_DEPTH_SIZE, 16,
60 EGL_STENCIL_SIZE, 8,
61 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
62 EGL_RENDERABLE_TYPE,EGL_OPENGL_ES2_BIT,
63 EGL_NONE, EGL_NONE };
65 static const EGLint RGB565_attributes[] = {
66 EGL_RED_SIZE, 5,
67 EGL_GREEN_SIZE, 6,
68 EGL_BLUE_SIZE, 5,
69 EGL_DEPTH_SIZE, 16,
70 EGL_STENCIL_SIZE, 8,
71 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
72 EGL_RENDERABLE_TYPE,EGL_OPENGL_ES2_BIT,
73 EGL_NONE, EGL_NONE };
75 static const EGLint context_attributes[] = {
76 EGL_CONTEXT_CLIENT_VERSION, 2,
77 EGL_NONE, EGL_NONE };
79 static EGLDisplay display;
80 static EGLContext context = EGL_NO_CONTEXT;
81 static EGLSurface surface = EGL_NO_SURFACE;
82 static gboolean fbo_created = FALSE;
84 gboolean video_egl_set_window(EGLNativeWindowType window, int width, int height, int format)
85 {
86 EGLConfig config;
87 EGLint num_config, major = 0, minor = 0;
88 const EGLint *attribute_list;
90 display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
91 if( eglInitialize(display, &major, &minor) != EGL_TRUE ) {
92 logEGLError( "Unable to initialise EGL display" );
93 return FALSE;
94 }
96 if( format == COLFMT_RGB565 || format == COLFMT_BGRA1555 ) {
97 attribute_list = RGB565_attributes;
98 } else {
99 attribute_list = RGB888_attributes;
100 }
103 eglChooseConfig(display, attribute_list, &config, 1, &num_config);
105 context = eglCreateContext(display, config, EGL_NO_CONTEXT, context_attributes);
106 if( context == EGL_NO_CONTEXT ) {
107 logEGLError( "Unable to create EGL context" );
108 video_egl_clear_window();
109 return FALSE;
110 }
112 surface = eglCreateWindowSurface(display, config, window, NULL);
113 if( surface == EGL_NO_SURFACE ) {
114 logEGLError( "Unable to create EGL surface" );
115 video_egl_clear_window();
116 return FALSE;
117 }
119 if( eglMakeCurrent( display, surface, surface, context ) == EGL_FALSE ) {
120 video_egl_clear_window();
121 return FALSE;
122 }
124 if( gl_fbo_is_supported() ) {
125 display_gl_driver.capabilities.has_gl = TRUE;
126 gl_fbo_init(&display_egl_driver);
127 gl_vbo_init(&display_egl_driver);
128 fbo_created = TRUE;
129 } else {
130 ERROR( "Display does not support FBO" );
131 video_egl_clear_window();
132 return FALSE;
133 }
134 pvr2_setup_gl_context();
135 INFO( "Initialised EGL %d.%d\n", major, minor );
136 return TRUE;
137 }
139 void video_egl_clear_window()
140 {
141 if( fbo_created ) {
142 gl_fbo_shutdown();
143 fbo_created = FALSE;
144 }
145 eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
146 if( surface != EGL_NO_SURFACE ) {
147 eglDestroySurface(display, surface);
148 surface = EGL_NO_SURFACE;
149 }
150 if( context != EGL_NO_CONTEXT ) {
151 eglDestroyContext(display, context);
152 context = EGL_NO_CONTEXT;
153 }
154 eglTerminate(display);
155 }
159 /**
160 * Minimal init and shutdown. The real work is done from set_window
161 */
162 struct display_driver display_egl_driver = {
163 "egl", N_("OpenGLES driver"), NULL, NULL,
164 NULL, NULL, NULL,
165 NULL, NULL, NULL, NULL,
166 gl_load_frame_buffer, gl_display_render_buffer, gl_display_blank,
167 NULL, gl_read_render_buffer, NULL, NULL
168 };
.