nkeynes@545 | 1 | /**
|
nkeynes@586 | 2 | * $Id$
|
nkeynes@545 | 3 | *
|
nkeynes@545 | 4 | * Shared functions for all X11-based display drivers.
|
nkeynes@545 | 5 | *
|
nkeynes@545 | 6 | * Copyright (c) 2005 Nathan Keynes.
|
nkeynes@545 | 7 | *
|
nkeynes@545 | 8 | * This program is free software; you can redistribute it and/or modify
|
nkeynes@545 | 9 | * it under the terms of the GNU General Public License as published by
|
nkeynes@545 | 10 | * the Free Software Foundation; either version 2 of the License, or
|
nkeynes@545 | 11 | * (at your option) any later version.
|
nkeynes@545 | 12 | *
|
nkeynes@545 | 13 | * This program is distributed in the hope that it will be useful,
|
nkeynes@545 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
nkeynes@545 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
nkeynes@545 | 16 | * GNU General Public License for more details.
|
nkeynes@545 | 17 | */
|
nkeynes@545 | 18 |
|
nkeynes@653 | 19 | #include <string.h>
|
nkeynes@586 | 20 | #include "display.h"
|
nkeynes@545 | 21 | #include <X11/Xlib.h>
|
nkeynes@545 | 22 | #include <GL/glx.h>
|
nkeynes@676 | 23 | #include <string.h>
|
nkeynes@653 | 24 | #include "pvr2/pvr2.h"
|
nkeynes@653 | 25 | #include "pvr2/glutil.h"
|
nkeynes@545 | 26 | #include "drivers/video_glx.h"
|
nkeynes@653 | 27 | #include "drivers/video_gl.h"
|
nkeynes@545 | 28 |
|
nkeynes@545 | 29 | /**
|
nkeynes@545 | 30 | * General X11 parameters. The front-end driver is expected to set this up
|
nkeynes@545 | 31 | * by calling video_glx_init after initializing itself.
|
nkeynes@545 | 32 | */
|
nkeynes@545 | 33 | Display *video_x11_display = NULL;
|
nkeynes@545 | 34 | Window video_x11_window = 0;
|
nkeynes@545 | 35 |
|
nkeynes@545 | 36 | static int glx_version = 100;
|
nkeynes@606 | 37 | static XVisualInfo *glx_visual = NULL;
|
nkeynes@545 | 38 | static GLXFBConfig glx_fbconfig;
|
nkeynes@545 | 39 | static GLXContext glx_context = NULL;
|
nkeynes@545 | 40 | static gboolean glx_is_initialized = FALSE;
|
nkeynes@545 | 41 | static gboolean glx_fbconfig_supported = FALSE;
|
nkeynes@545 | 42 | static gboolean glx_pbuffer_supported = FALSE;
|
nkeynes@669 | 43 | static GLuint glx_pbuffer_texture = 0;
|
nkeynes@545 | 44 |
|
nkeynes@545 | 45 | /* Prototypes for pbuffer support methods */
|
nkeynes@545 | 46 | static void glx_pbuffer_init( display_driver_t driver );
|
nkeynes@805 | 47 | static render_buffer_t glx_pbuffer_create_render_buffer( uint32_t width, uint32_t height, GLuint tex_id );
|
nkeynes@545 | 48 | static void glx_pbuffer_destroy_render_buffer( render_buffer_t buffer );
|
nkeynes@545 | 49 | static gboolean glx_pbuffer_set_render_target( render_buffer_t buffer );
|
nkeynes@805 | 50 | static void glx_pbuffer_finish_render( render_buffer_t buffer );
|
nkeynes@669 | 51 | static void glx_pbuffer_display_render_buffer( render_buffer_t buffer );
|
nkeynes@545 | 52 | static void glx_pbuffer_load_frame_buffer( frame_buffer_t frame, render_buffer_t buffer );
|
nkeynes@669 | 53 | static void glx_pbuffer_display_blank( uint32_t colour );
|
nkeynes@545 | 54 | static gboolean glx_pbuffer_read_render_buffer( unsigned char *target, render_buffer_t buffer, int rowstride, int format );
|
nkeynes@545 | 55 |
|
nkeynes@545 | 56 | /**
|
nkeynes@545 | 57 | * Test if a specific extension is supported. From opengl.org
|
nkeynes@545 | 58 | * @param extension extension name to check for
|
nkeynes@545 | 59 | * @return TRUE if supported, otherwise FALSE.
|
nkeynes@545 | 60 | */
|
nkeynes@545 | 61 | gboolean isServerGLXExtensionSupported( Display *display, int screen,
|
nkeynes@736 | 62 | const char *extension )
|
nkeynes@545 | 63 | {
|
nkeynes@545 | 64 | const char *extensions = NULL;
|
nkeynes@545 | 65 | const char *start;
|
nkeynes@545 | 66 | char *where, *terminator;
|
nkeynes@545 | 67 |
|
nkeynes@545 | 68 | /* Extension names should not have spaces. */
|
nkeynes@545 | 69 | where = strchr(extension, ' ');
|
nkeynes@545 | 70 | if (where || *extension == '\0')
|
nkeynes@736 | 71 | return 0;
|
nkeynes@545 | 72 | extensions = glXQueryServerString(display, screen, GLX_EXTENSIONS);
|
nkeynes@545 | 73 | start = extensions;
|
nkeynes@545 | 74 | for (;;) {
|
nkeynes@736 | 75 | where = strstr((const char *) start, extension);
|
nkeynes@736 | 76 | if (!where)
|
nkeynes@736 | 77 | break;
|
nkeynes@736 | 78 | terminator = where + strlen(extension);
|
nkeynes@736 | 79 | if (where == start || *(where - 1) == ' ')
|
nkeynes@736 | 80 | if (*terminator == ' ' || *terminator == '\0')
|
nkeynes@736 | 81 | return TRUE;
|
nkeynes@736 | 82 | start = terminator;
|
nkeynes@545 | 83 | }
|
nkeynes@545 | 84 | return FALSE;
|
nkeynes@545 | 85 | }
|
nkeynes@545 | 86 |
|
nkeynes@545 | 87 | gboolean video_glx_init( Display *display, int screen )
|
nkeynes@545 | 88 | {
|
nkeynes@545 | 89 | int major, minor;
|
nkeynes@545 | 90 |
|
nkeynes@545 | 91 | if( glx_is_initialized ) {
|
nkeynes@545 | 92 | return TRUE;
|
nkeynes@545 | 93 | }
|
nkeynes@545 | 94 |
|
nkeynes@545 | 95 | Bool result = glXQueryVersion( display, &major, &minor );
|
nkeynes@545 | 96 | if( result != False ) {
|
nkeynes@545 | 97 | glx_version = (major*100) + minor;
|
nkeynes@545 | 98 | }
|
nkeynes@736 | 99 |
|
nkeynes@545 | 100 | glx_fbconfig_supported = (glx_version >= 103 ||
|
nkeynes@736 | 101 | isServerGLXExtensionSupported(display, screen,
|
nkeynes@736 | 102 | "GLX_SGIX_fbconfig") );
|
nkeynes@545 | 103 | glx_pbuffer_supported = (glx_version >= 103 ||
|
nkeynes@736 | 104 | isServerGLXExtensionSupported(display, screen,
|
nkeynes@736 | 105 | "GLX_SGIX_pbuffer") );
|
nkeynes@545 | 106 | if( glx_fbconfig_supported ) {
|
nkeynes@736 | 107 | int nelem;
|
nkeynes@545 | 108 | int fb_attribs[] = { GLX_DRAWABLE_TYPE,
|
nkeynes@736 | 109 | GLX_PBUFFER_BIT|GLX_WINDOW_BIT,
|
nkeynes@736 | 110 | GLX_RENDER_TYPE, GLX_RGBA_BIT,
|
nkeynes@736 | 111 | GLX_DEPTH_SIZE, 24, 0 };
|
nkeynes@736 | 112 | GLXFBConfig *configs = glXChooseFBConfig( display, screen,
|
nkeynes@736 | 113 | fb_attribs, &nelem );
|
nkeynes@545 | 114 |
|
nkeynes@736 | 115 | if( configs == NULL || nelem == 0 ) {
|
nkeynes@736 | 116 | /* Try a 16-bit depth buffer and see if it helps */
|
nkeynes@736 | 117 | fb_attribs[5] = 16;
|
nkeynes@736 | 118 | configs = glXChooseFBConfig( display, screen, fb_attribs, &nelem );
|
nkeynes@736 | 119 | if( nelem > 0 ) {
|
nkeynes@676 | 120 | WARN( "Using a 16-bit depth buffer - expect video glitches" );
|
nkeynes@676 | 121 | }
|
nkeynes@676 | 122 |
|
nkeynes@676 | 123 | }
|
nkeynes@676 | 124 | if( configs == NULL || nelem == 0 ) {
|
nkeynes@736 | 125 | /* Still didn't work. Fallback to 1.2 methods */
|
nkeynes@736 | 126 | glx_fbconfig_supported = FALSE;
|
nkeynes@736 | 127 | glx_pbuffer_supported = FALSE;
|
nkeynes@736 | 128 | } else {
|
nkeynes@736 | 129 | glx_fbconfig = configs[0];
|
nkeynes@736 | 130 | glx_visual = glXGetVisualFromFBConfig(display, glx_fbconfig);
|
nkeynes@736 | 131 | XFree(configs);
|
nkeynes@736 | 132 | }
|
nkeynes@545 | 133 | }
|
nkeynes@545 | 134 |
|
nkeynes@545 | 135 | if( !glx_fbconfig_supported ) {
|
nkeynes@545 | 136 | int attribs[] = { GLX_RGBA, GLX_DEPTH_SIZE, 24, 0 };
|
nkeynes@736 | 137 | glx_visual = glXChooseVisual( display, screen, attribs );
|
nkeynes@676 | 138 | if( glx_visual == NULL ) {
|
nkeynes@676 | 139 | /* Try the 16-bit fallback here too */
|
nkeynes@676 | 140 | attribs[2] = 16;
|
nkeynes@676 | 141 | glx_visual = glXChooseVisual( display, screen, attribs );
|
nkeynes@676 | 142 | if( glx_visual != NULL ) {
|
nkeynes@676 | 143 | WARN( "Using a 16-bit depth buffer - expect video glitches" );
|
nkeynes@676 | 144 | }
|
nkeynes@676 | 145 | }
|
nkeynes@545 | 146 | }
|
nkeynes@606 | 147 |
|
nkeynes@606 | 148 | if( glx_visual == NULL ) {
|
nkeynes@606 | 149 | return FALSE;
|
nkeynes@606 | 150 | }
|
nkeynes@606 | 151 |
|
nkeynes@545 | 152 | glx_is_initialized = TRUE;
|
nkeynes@545 | 153 | return TRUE;
|
nkeynes@545 | 154 | }
|
nkeynes@545 | 155 |
|
nkeynes@545 | 156 | gboolean video_glx_init_context( Display *display, Window window )
|
nkeynes@545 | 157 | {
|
nkeynes@545 | 158 | if( glx_fbconfig_supported ) {
|
nkeynes@545 | 159 | glx_context = glXCreateNewContext( display, glx_fbconfig,
|
nkeynes@736 | 160 | GLX_RGBA_TYPE, NULL, True );
|
nkeynes@736 | 161 | if( glx_context == NULL ) {
|
nkeynes@736 | 162 | ERROR( "Unable to create a GLX Context.");
|
nkeynes@736 | 163 | return FALSE;
|
nkeynes@736 | 164 | }
|
nkeynes@545 | 165 |
|
nkeynes@736 | 166 | if( glXMakeContextCurrent( display, window, window,
|
nkeynes@736 | 167 | glx_context ) == False ) {
|
nkeynes@736 | 168 | ERROR( "Unable to prepare GLX context for drawing" );
|
nkeynes@736 | 169 | glXDestroyContext( display, glx_context );
|
nkeynes@736 | 170 | return FALSE;
|
nkeynes@736 | 171 | }
|
nkeynes@545 | 172 | } else {
|
nkeynes@545 | 173 | glx_context = glXCreateContext( display, glx_visual, None, True );
|
nkeynes@736 | 174 | if( glx_context == NULL ) {
|
nkeynes@736 | 175 | ERROR( "Unable to create a GLX Context.");
|
nkeynes@736 | 176 | return FALSE;
|
nkeynes@736 | 177 | }
|
nkeynes@736 | 178 |
|
nkeynes@736 | 179 | if( glXMakeCurrent( display, window, glx_context ) == False ) {
|
nkeynes@736 | 180 | ERROR( "Unable to prepare GLX context for drawing" );
|
nkeynes@736 | 181 | glXDestroyContext( display, glx_context );
|
nkeynes@736 | 182 | return FALSE;
|
nkeynes@736 | 183 | }
|
nkeynes@545 | 184 | }
|
nkeynes@545 | 185 |
|
nkeynes@545 | 186 | if( !glXIsDirect(display, glx_context) ) {
|
nkeynes@736 | 187 | WARN( "Not using direct rendering - this is likely to be slow" );
|
nkeynes@545 | 188 | }
|
nkeynes@545 | 189 |
|
nkeynes@545 | 190 | video_x11_display = display;
|
nkeynes@545 | 191 | video_x11_window = window;
|
nkeynes@545 | 192 |
|
nkeynes@545 | 193 | return TRUE;
|
nkeynes@545 | 194 | }
|
nkeynes@545 | 195 |
|
nkeynes@545 | 196 | gboolean video_glx_init_driver( display_driver_t driver )
|
nkeynes@545 | 197 | {
|
nkeynes@545 | 198 | if( gl_fbo_is_supported() ) { // First preference
|
nkeynes@736 | 199 | gl_fbo_init(driver);
|
nkeynes@545 | 200 | } else if( glx_pbuffer_supported ) {
|
nkeynes@736 | 201 | glx_pbuffer_init(driver);
|
nkeynes@545 | 202 | } else {
|
nkeynes@545 | 203 | ERROR( "Unable to create render buffers (requires either EXT_framebuffer_object or GLX 1.3+)" );
|
nkeynes@545 | 204 | video_glx_shutdown();
|
nkeynes@736 | 205 | return FALSE;
|
nkeynes@545 | 206 | }
|
nkeynes@545 | 207 | return TRUE;
|
nkeynes@545 | 208 | }
|
nkeynes@545 | 209 |
|
nkeynes@545 | 210 |
|
nkeynes@545 | 211 | void video_glx_shutdown()
|
nkeynes@545 | 212 | {
|
nkeynes@736 | 213 | // texcache_gl_shutdown();
|
nkeynes@545 | 214 | glx_is_initialized = FALSE;
|
nkeynes@545 | 215 | if( glx_context != NULL ) {
|
nkeynes@545 | 216 | glXDestroyContext( video_x11_display, glx_context );
|
nkeynes@736 | 217 | glx_context = NULL;
|
nkeynes@545 | 218 | }
|
nkeynes@545 | 219 | if( glx_visual != NULL ) {
|
nkeynes@545 | 220 | XFree(glx_visual);
|
nkeynes@736 | 221 | glx_visual = NULL;
|
nkeynes@545 | 222 | }
|
nkeynes@545 | 223 | }
|
nkeynes@545 | 224 |
|
nkeynes@545 | 225 |
|
nkeynes@545 | 226 | XVisualInfo *video_glx_get_visual()
|
nkeynes@545 | 227 | {
|
nkeynes@545 | 228 | return glx_visual;
|
nkeynes@545 | 229 | }
|
nkeynes@545 | 230 |
|
nkeynes@545 | 231 |
|
nkeynes@545 | 232 | int video_glx_load_font( const gchar *font_name )
|
nkeynes@545 | 233 | {
|
nkeynes@545 | 234 | int lists;
|
nkeynes@545 | 235 | XFontStruct *font = XLoadQueryFont(video_x11_display, font_name );
|
nkeynes@545 | 236 | if (font == NULL)
|
nkeynes@736 | 237 | return -1;
|
nkeynes@736 | 238 |
|
nkeynes@545 | 239 | lists = glGenLists(96);
|
nkeynes@545 | 240 | glXUseXFont(font->fid, 32, 96, lists);
|
nkeynes@545 | 241 | XFreeFont(video_x11_display, font);
|
nkeynes@545 | 242 | return lists;
|
nkeynes@545 | 243 | }
|
nkeynes@545 | 244 |
|
nkeynes@545 | 245 |
|
nkeynes@545 | 246 | void video_glx_swap_buffers( void )
|
nkeynes@545 | 247 | {
|
nkeynes@545 | 248 | glXSwapBuffers( video_x11_display, video_x11_window );
|
nkeynes@545 | 249 | }
|
nkeynes@545 | 250 |
|
nkeynes@545 | 251 | void video_glx_make_window_current( void )
|
nkeynes@545 | 252 | {
|
nkeynes@545 | 253 | glXMakeCurrent( video_x11_display, video_x11_window, glx_context );
|
nkeynes@545 | 254 | }
|
nkeynes@545 | 255 |
|
nkeynes@545 | 256 |
|
nkeynes@545 | 257 | // Pbuffer support
|
nkeynes@545 | 258 |
|
nkeynes@545 | 259 | /**
|
nkeynes@545 | 260 | * Construct the initial frame buffers and allocate ids for everything.
|
nkeynes@545 | 261 | * The render handling driver methods are set to the fbo versions.
|
nkeynes@545 | 262 | */
|
nkeynes@545 | 263 | static void glx_pbuffer_init( display_driver_t driver )
|
nkeynes@545 | 264 | {
|
nkeynes@545 | 265 | glGenTextures( 1, &glx_pbuffer_texture );
|
nkeynes@545 | 266 | driver->create_render_buffer = glx_pbuffer_create_render_buffer;
|
nkeynes@545 | 267 | driver->destroy_render_buffer = glx_pbuffer_destroy_render_buffer;
|
nkeynes@545 | 268 | driver->set_render_target = glx_pbuffer_set_render_target;
|
nkeynes@805 | 269 | driver->finish_render = glx_pbuffer_finish_render;
|
nkeynes@545 | 270 | driver->display_render_buffer = glx_pbuffer_display_render_buffer;
|
nkeynes@545 | 271 | driver->load_frame_buffer = glx_pbuffer_load_frame_buffer;
|
nkeynes@545 | 272 | driver->display_blank = glx_pbuffer_display_blank;
|
nkeynes@545 | 273 | driver->read_render_buffer = glx_pbuffer_read_render_buffer;
|
nkeynes@545 | 274 | }
|
nkeynes@545 | 275 |
|
nkeynes@545 | 276 | void glx_pbuffer_shutdown()
|
nkeynes@545 | 277 | {
|
nkeynes@545 | 278 | glDeleteTextures( 1, &glx_pbuffer_texture );
|
nkeynes@545 | 279 | }
|
nkeynes@545 | 280 |
|
nkeynes@805 | 281 | static render_buffer_t glx_pbuffer_create_render_buffer( uint32_t width, uint32_t height, GLuint tex_id )
|
nkeynes@545 | 282 | {
|
nkeynes@545 | 283 | int attribs[] = { GLX_PBUFFER_WIDTH, width, GLX_PBUFFER_HEIGHT, height,
|
nkeynes@736 | 284 | GLX_PRESERVED_CONTENTS, True, 0 };
|
nkeynes@545 | 285 | GLXPbuffer pb = glXCreatePbuffer( video_x11_display, glx_fbconfig, attribs );
|
nkeynes@545 | 286 | if( pb == (GLXPbuffer)NULL ) {
|
nkeynes@736 | 287 | ERROR( "Unable to create pbuffer" );
|
nkeynes@736 | 288 | return NULL;
|
nkeynes@545 | 289 | }
|
nkeynes@545 | 290 | render_buffer_t buffer = calloc( sizeof(struct render_buffer), 1 );
|
nkeynes@545 | 291 | buffer->width = width;
|
nkeynes@545 | 292 | buffer->height = height;
|
nkeynes@545 | 293 | buffer->buf_id = pb;
|
nkeynes@805 | 294 | buffer->tex_id = tex_id;
|
nkeynes@545 | 295 | return buffer;
|
nkeynes@545 | 296 | }
|
nkeynes@545 | 297 |
|
nkeynes@545 | 298 | static void glx_pbuffer_destroy_render_buffer( render_buffer_t buffer )
|
nkeynes@545 | 299 | {
|
nkeynes@545 | 300 | glXDestroyPbuffer( video_x11_display, (GLXPbuffer)buffer->buf_id );
|
nkeynes@545 | 301 | buffer->buf_id = 0;
|
nkeynes@545 | 302 | free( buffer );
|
nkeynes@545 | 303 | }
|
nkeynes@545 | 304 |
|
nkeynes@545 | 305 | static gboolean glx_pbuffer_set_render_target( render_buffer_t buffer )
|
nkeynes@545 | 306 | {
|
nkeynes@545 | 307 | glFinish();
|
nkeynes@545 | 308 | if( glXMakeContextCurrent( video_x11_display, (GLXPbuffer)buffer->buf_id, (GLXPbuffer)buffer->buf_id, glx_context ) == False ) {
|
nkeynes@736 | 309 | ERROR( "Make context current (pbuffer) failed!" );
|
nkeynes@545 | 310 | }
|
nkeynes@545 | 311 | /* setup the gl context */
|
nkeynes@545 | 312 | glViewport( 0, 0, buffer->width, buffer->height );
|
nkeynes@545 | 313 | glDrawBuffer(GL_FRONT);
|
nkeynes@736 | 314 |
|
nkeynes@545 | 315 | return TRUE;
|
nkeynes@545 | 316 | }
|
nkeynes@545 | 317 |
|
nkeynes@805 | 318 | static void glx_pbuffer_finish_render( render_buffer_t buffer )
|
nkeynes@805 | 319 | {
|
nkeynes@805 | 320 | glFinish();
|
nkeynes@805 | 321 | if( buffer->tex_id != 0 ) {
|
nkeynes@805 | 322 | // The pbuffer should already be the current context, but just in case...
|
nkeynes@805 | 323 | glXMakeContextCurrent( video_x11_display, (GLXPbuffer)buffer->buf_id, (GLXPbuffer)buffer->buf_id, glx_context );
|
nkeynes@805 | 324 | glBindTexture( GL_TEXTURE_RECTANGLE_ARB, buffer->tex_id );
|
nkeynes@805 | 325 | glCopyTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, 0, 0, buffer->width, buffer->height, 0 );
|
nkeynes@805 | 326 | }
|
nkeynes@805 | 327 | }
|
nkeynes@805 | 328 |
|
nkeynes@805 | 329 |
|
nkeynes@545 | 330 | /**
|
nkeynes@545 | 331 | * Render the texture holding the given buffer to the front window
|
nkeynes@545 | 332 | * buffer.
|
nkeynes@545 | 333 | */
|
nkeynes@669 | 334 | static void glx_pbuffer_display_render_buffer( render_buffer_t buffer )
|
nkeynes@545 | 335 | {
|
nkeynes@545 | 336 | glFinish();
|
nkeynes@545 | 337 | glReadBuffer( GL_FRONT );
|
nkeynes@545 | 338 | glDrawBuffer( GL_FRONT );
|
nkeynes@545 | 339 | glXMakeContextCurrent( video_x11_display, (GLXPbuffer)buffer->buf_id, (GLXPbuffer)buffer->buf_id, glx_context );
|
nkeynes@545 | 340 | glBindTexture( GL_TEXTURE_RECTANGLE_ARB, glx_pbuffer_texture );
|
nkeynes@545 | 341 | glCopyTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, 0, 0, buffer->width, buffer->height, 0 );
|
nkeynes@545 | 342 | video_glx_make_window_current();
|
nkeynes@545 | 343 | gl_texture_window( buffer->width, buffer->height, glx_pbuffer_texture, buffer->inverted );
|
nkeynes@545 | 344 | }
|
nkeynes@545 | 345 |
|
nkeynes@545 | 346 | static void glx_pbuffer_load_frame_buffer( frame_buffer_t frame, render_buffer_t buffer )
|
nkeynes@545 | 347 | {
|
nkeynes@545 | 348 | glFinish();
|
nkeynes@545 | 349 | glXMakeContextCurrent( video_x11_display, (GLXPbuffer)buffer->buf_id, (GLXPbuffer)buffer->buf_id, glx_context );
|
nkeynes@545 | 350 | GLenum type = colour_formats[frame->colour_format].type;
|
nkeynes@545 | 351 | GLenum format = colour_formats[frame->colour_format].format;
|
nkeynes@545 | 352 | int bpp = colour_formats[frame->colour_format].bpp;
|
nkeynes@545 | 353 | int rowstride = (frame->rowstride / bpp) - frame->width;
|
nkeynes@736 | 354 |
|
nkeynes@545 | 355 | gl_reset_state();
|
nkeynes@545 | 356 | glPixelStorei( GL_UNPACK_ROW_LENGTH, rowstride );
|
nkeynes@545 | 357 | glRasterPos2f(0.375, frame->height-0.375);
|
nkeynes@545 | 358 | glPixelZoom( 1.0, 1.0 );
|
nkeynes@545 | 359 | glDrawPixels( frame->width, frame->height, format, type, frame->data );
|
nkeynes@545 | 360 | glFlush();
|
nkeynes@545 | 361 | }
|
nkeynes@545 | 362 |
|
nkeynes@669 | 363 | static void glx_pbuffer_display_blank( uint32_t colour )
|
nkeynes@545 | 364 | {
|
nkeynes@545 | 365 | glFinish();
|
nkeynes@545 | 366 | video_glx_make_window_current();
|
nkeynes@669 | 367 | gl_display_blank( colour );
|
nkeynes@545 | 368 | }
|
nkeynes@545 | 369 |
|
nkeynes@545 | 370 | static gboolean glx_pbuffer_read_render_buffer( unsigned char *target, render_buffer_t buffer,
|
nkeynes@736 | 371 | int rowstride, int format )
|
nkeynes@545 | 372 | {
|
nkeynes@545 | 373 | glXMakeCurrent( video_x11_display, (GLXDrawable)buffer->buf_id, glx_context );
|
nkeynes@545 | 374 | glReadBuffer( GL_FRONT );
|
nkeynes@545 | 375 | return gl_read_render_buffer( target, buffer, rowstride, format );
|
nkeynes@545 | 376 | }
|
nkeynes@545 | 377 |
|
nkeynes@545 | 378 |
|