nkeynes@1245 | 1 | /**
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nkeynes@1245 | 2 | * $Id$
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nkeynes@1245 | 3 | *
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nkeynes@1245 | 4 | * Window management using EGL.
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nkeynes@1245 | 5 | *
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nkeynes@1245 | 6 | * Copyright (c) 2012 Nathan Keynes.
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nkeynes@1245 | 7 | *
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nkeynes@1245 | 8 | * This program is free software; you can redistribute it and/or modify
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nkeynes@1245 | 9 | * it under the terms of the GNU General Public License as published by
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nkeynes@1245 | 10 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@1245 | 11 | * (at your option) any later version.
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nkeynes@1245 | 12 | *
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nkeynes@1245 | 13 | * This program is distributed in the hope that it will be useful,
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nkeynes@1245 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@1245 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@1245 | 16 | * GNU General Public License for more details.
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nkeynes@1245 | 17 | */
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nkeynes@1245 | 18 |
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nkeynes@1245 | 19 | #include "lxdream.h"
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nkeynes@1245 | 20 | #include "display.h"
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nkeynes@1245 | 21 | #include "video_egl.h"
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nkeynes@1245 | 22 | #include "video_gl.h"
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nkeynes@1245 | 23 | #include "pvr2/pvr2.h"
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nkeynes@1245 | 24 | #include "pvr2/glutil.h"
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nkeynes@1245 | 25 |
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nkeynes@1245 | 26 | static const char *getEGLErrorString( EGLint code )
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nkeynes@1245 | 27 | {
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nkeynes@1245 | 28 | switch( code ) {
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nkeynes@1245 | 29 | case EGL_SUCCESS: return "OK";
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nkeynes@1245 | 30 | case EGL_NOT_INITIALIZED: return "EGL not initialized";
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nkeynes@1245 | 31 | case EGL_BAD_ACCESS: return "Bad access";
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nkeynes@1245 | 32 | case EGL_BAD_ALLOC: return "Allocation failed";
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nkeynes@1245 | 33 | case EGL_BAD_ATTRIBUTE: return "Bad attribute";
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nkeynes@1245 | 34 | case EGL_BAD_CONTEXT: return "Bad context";
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nkeynes@1245 | 35 | case EGL_BAD_CONFIG: return "Bad config";
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nkeynes@1245 | 36 | case EGL_BAD_CURRENT_SURFACE: return "Bad current surface";
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nkeynes@1245 | 37 | case EGL_BAD_DISPLAY: return "Bad display";
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nkeynes@1245 | 38 | case EGL_BAD_MATCH: return "Bad match";
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nkeynes@1245 | 39 | case EGL_BAD_PARAMETER: return "Bad parameter";
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nkeynes@1245 | 40 | case EGL_BAD_NATIVE_PIXMAP: return "Bad native pixmap";
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nkeynes@1245 | 41 | case EGL_BAD_NATIVE_WINDOW: return "Bad native window";
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nkeynes@1245 | 42 | default: return "Unknown error";
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nkeynes@1245 | 43 | }
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nkeynes@1245 | 44 | }
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nkeynes@1245 | 45 |
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nkeynes@1245 | 46 |
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nkeynes@1245 | 47 | static void logEGLError(const char *msg)
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nkeynes@1245 | 48 | {
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nkeynes@1245 | 49 | EGLint error = eglGetError();
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nkeynes@1245 | 50 | const char *errorStr = getEGLErrorString(error);
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nkeynes@1245 | 51 |
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nkeynes@1245 | 52 | ERROR( "%s: %s (%x)", msg, errorStr, error );
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nkeynes@1245 | 53 | }
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nkeynes@1245 | 54 |
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nkeynes@1245 | 55 | static const EGLint RGB888_attributes[] = {
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nkeynes@1245 | 56 | EGL_RED_SIZE, 8,
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nkeynes@1245 | 57 | EGL_GREEN_SIZE, 8,
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nkeynes@1245 | 58 | EGL_BLUE_SIZE, 8,
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nkeynes@1245 | 59 | EGL_DEPTH_SIZE, 16,
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nkeynes@1245 | 60 | EGL_STENCIL_SIZE, 8,
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nkeynes@1245 | 61 | EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
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nkeynes@1245 | 62 | EGL_RENDERABLE_TYPE,EGL_OPENGL_ES2_BIT,
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nkeynes@1245 | 63 | EGL_NONE, EGL_NONE };
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nkeynes@1245 | 64 |
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nkeynes@1245 | 65 | static const EGLint RGB565_attributes[] = {
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nkeynes@1245 | 66 | EGL_RED_SIZE, 5,
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nkeynes@1245 | 67 | EGL_GREEN_SIZE, 6,
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nkeynes@1245 | 68 | EGL_BLUE_SIZE, 5,
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nkeynes@1245 | 69 | EGL_DEPTH_SIZE, 16,
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nkeynes@1245 | 70 | EGL_STENCIL_SIZE, 8,
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nkeynes@1245 | 71 | EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
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nkeynes@1245 | 72 | EGL_RENDERABLE_TYPE,EGL_OPENGL_ES2_BIT,
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nkeynes@1245 | 73 | EGL_NONE, EGL_NONE };
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nkeynes@1245 | 74 |
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nkeynes@1245 | 75 | static const EGLint context_attributes[] = {
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nkeynes@1245 | 76 | EGL_CONTEXT_CLIENT_VERSION, 2,
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nkeynes@1245 | 77 | EGL_NONE, EGL_NONE };
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nkeynes@1245 | 78 |
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nkeynes@1245 | 79 | static EGLDisplay display;
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nkeynes@1245 | 80 | static EGLContext context = EGL_NO_CONTEXT;
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nkeynes@1245 | 81 | static EGLSurface surface = EGL_NO_SURFACE;
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nkeynes@1245 | 82 | static gboolean fbo_created = FALSE;
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nkeynes@1245 | 83 |
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nkeynes@1245 | 84 | gboolean video_egl_set_window(EGLNativeWindowType window, int width, int height, int format)
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nkeynes@1245 | 85 | {
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nkeynes@1245 | 86 | EGLConfig config;
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nkeynes@1245 | 87 | EGLint num_config, major = 0, minor = 0;
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nkeynes@1245 | 88 | const EGLint *attribute_list;
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nkeynes@1245 | 89 |
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nkeynes@1245 | 90 | display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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nkeynes@1245 | 91 | if( eglInitialize(display, &major, &minor) != EGL_TRUE ) {
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nkeynes@1245 | 92 | logEGLError( "Unable to initialise EGL display" );
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nkeynes@1245 | 93 | return FALSE;
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nkeynes@1245 | 94 | }
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nkeynes@1245 | 95 |
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nkeynes@1245 | 96 | if( format == COLFMT_RGB565 || format == COLFMT_BGRA1555 ) {
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nkeynes@1245 | 97 | attribute_list = RGB565_attributes;
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nkeynes@1245 | 98 | } else {
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nkeynes@1245 | 99 | attribute_list = RGB888_attributes;
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nkeynes@1245 | 100 | }
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nkeynes@1245 | 101 |
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nkeynes@1245 | 102 |
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nkeynes@1245 | 103 | eglChooseConfig(display, attribute_list, &config, 1, &num_config);
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nkeynes@1245 | 104 |
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nkeynes@1245 | 105 | context = eglCreateContext(display, config, EGL_NO_CONTEXT, context_attributes);
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nkeynes@1245 | 106 | if( context == EGL_NO_CONTEXT ) {
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nkeynes@1245 | 107 | logEGLError( "Unable to create EGL context" );
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nkeynes@1245 | 108 | video_egl_clear_window();
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nkeynes@1245 | 109 | return FALSE;
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nkeynes@1245 | 110 | }
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nkeynes@1245 | 111 |
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nkeynes@1245 | 112 | surface = eglCreateWindowSurface(display, config, window, NULL);
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nkeynes@1245 | 113 | if( surface == EGL_NO_SURFACE ) {
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nkeynes@1245 | 114 | logEGLError( "Unable to create EGL surface" );
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nkeynes@1245 | 115 | video_egl_clear_window();
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nkeynes@1245 | 116 | return FALSE;
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nkeynes@1245 | 117 | }
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nkeynes@1245 | 118 |
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nkeynes@1245 | 119 | if( eglMakeCurrent( display, surface, surface, context ) == EGL_FALSE ) {
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nkeynes@1245 | 120 | video_egl_clear_window();
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nkeynes@1245 | 121 | return FALSE;
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nkeynes@1245 | 122 | }
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nkeynes@1245 | 123 |
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nkeynes@1245 | 124 | if( gl_fbo_is_supported() ) {
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nkeynes@1251 | 125 | display_egl_driver.capabilities.has_gl = TRUE;
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nkeynes@1251 | 126 | display_egl_driver.capabilities.depth_bits = 16; /* TODO: get from config info */
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nkeynes@1245 | 127 | gl_fbo_init(&display_egl_driver);
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nkeynes@1245 | 128 | gl_vbo_init(&display_egl_driver);
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nkeynes@1256 | 129 | glsl_init(&display_egl_driver);
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nkeynes@1245 | 130 | fbo_created = TRUE;
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nkeynes@1245 | 131 | } else {
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nkeynes@1245 | 132 | ERROR( "Display does not support FBO" );
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nkeynes@1245 | 133 | video_egl_clear_window();
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nkeynes@1245 | 134 | return FALSE;
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nkeynes@1245 | 135 | }
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nkeynes@1251 | 136 | gl_set_video_size(width, height, 0);
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nkeynes@1245 | 137 | pvr2_setup_gl_context();
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nkeynes@1245 | 138 | INFO( "Initialised EGL %d.%d\n", major, minor );
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nkeynes@1245 | 139 | return TRUE;
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nkeynes@1245 | 140 | }
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nkeynes@1245 | 141 |
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nkeynes@1245 | 142 | void video_egl_clear_window()
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nkeynes@1245 | 143 | {
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nkeynes@1245 | 144 | if( fbo_created ) {
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nkeynes@1245 | 145 | gl_fbo_shutdown();
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nkeynes@1245 | 146 | fbo_created = FALSE;
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nkeynes@1245 | 147 | }
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nkeynes@1245 | 148 | eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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nkeynes@1245 | 149 | if( surface != EGL_NO_SURFACE ) {
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nkeynes@1245 | 150 | eglDestroySurface(display, surface);
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nkeynes@1245 | 151 | surface = EGL_NO_SURFACE;
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nkeynes@1245 | 152 | }
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nkeynes@1245 | 153 | if( context != EGL_NO_CONTEXT ) {
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nkeynes@1245 | 154 | eglDestroyContext(display, context);
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nkeynes@1245 | 155 | context = EGL_NO_CONTEXT;
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nkeynes@1245 | 156 | }
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nkeynes@1245 | 157 | eglTerminate(display);
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nkeynes@1245 | 158 | }
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nkeynes@1245 | 159 |
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nkeynes@1251 | 160 | static void video_egl_swap_buffers()
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nkeynes@1251 | 161 | {
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nkeynes@1251 | 162 | eglSwapBuffers(display, surface);
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nkeynes@1251 | 163 | }
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nkeynes@1245 | 164 |
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nkeynes@1245 | 165 |
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nkeynes@1245 | 166 | /**
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nkeynes@1245 | 167 | * Minimal init and shutdown. The real work is done from set_window
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nkeynes@1245 | 168 | */
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nkeynes@1245 | 169 | struct display_driver display_egl_driver = {
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nkeynes@1245 | 170 | "egl", N_("OpenGLES driver"), NULL, NULL,
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nkeynes@1245 | 171 | NULL, NULL, NULL,
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nkeynes@1245 | 172 | NULL, NULL, NULL, NULL,
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nkeynes@1245 | 173 | gl_load_frame_buffer, gl_display_render_buffer, gl_display_blank,
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nkeynes@1251 | 174 | video_egl_swap_buffers, gl_read_render_buffer, NULL, NULL
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nkeynes@1245 | 175 | };
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