filename | src/drivers/video_glx.c |
changeset | 1258:f8a9c0fd2abb |
prev | 1256:a9d29fe74bf3 |
author | nkeynes |
date | Mon Mar 05 11:41:03 2012 +1000 (12 years ago) |
permissions | -rw-r--r-- |
last change | Small cleanups: Refactor the post-windowing setup into gl_init_driver() in video_gl.c Move gl_sl.c into src/drivers and tidy up a bit. Fix OS X compiling plugins with -mdynamic-no-pic |
file | annotate | diff | log | raw |
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@806 | 19 | #include <stdlib.h> |
nkeynes@635 | 20 | #include <string.h> |
nkeynes@586 | 21 | #include "display.h" |
nkeynes@545 | 22 | #include <X11/Xlib.h> |
nkeynes@545 | 23 | #include <GL/glx.h> |
nkeynes@635 | 24 | #include "pvr2/pvr2.h" |
nkeynes@635 | 25 | #include "pvr2/glutil.h" |
nkeynes@545 | 26 | #include "drivers/video_glx.h" |
nkeynes@635 | 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@1251 | 44 | static int glx_depth_bits = 0; |
nkeynes@545 | 45 | |
nkeynes@1076 | 46 | static void video_glx_swap_buffers( void ); |
nkeynes@1134 | 47 | static void video_glx_print_info( FILE *out ); |
nkeynes@1076 | 48 | |
nkeynes@545 | 49 | /* Prototypes for pbuffer support methods */ |
nkeynes@545 | 50 | static void glx_pbuffer_init( display_driver_t driver ); |
nkeynes@805 | 51 | static render_buffer_t glx_pbuffer_create_render_buffer( uint32_t width, uint32_t height, GLuint tex_id ); |
nkeynes@545 | 52 | static void glx_pbuffer_destroy_render_buffer( render_buffer_t buffer ); |
nkeynes@545 | 53 | static gboolean glx_pbuffer_set_render_target( render_buffer_t buffer ); |
nkeynes@805 | 54 | static void glx_pbuffer_finish_render( render_buffer_t buffer ); |
nkeynes@669 | 55 | static void glx_pbuffer_display_render_buffer( render_buffer_t buffer ); |
nkeynes@545 | 56 | static void glx_pbuffer_load_frame_buffer( frame_buffer_t frame, render_buffer_t buffer ); |
nkeynes@669 | 57 | static void glx_pbuffer_display_blank( uint32_t colour ); |
nkeynes@545 | 58 | static gboolean glx_pbuffer_read_render_buffer( unsigned char *target, render_buffer_t buffer, int rowstride, int format ); |
nkeynes@545 | 59 | |
nkeynes@545 | 60 | /** |
nkeynes@545 | 61 | * Test if a specific extension is supported. From opengl.org |
nkeynes@545 | 62 | * @param extension extension name to check for |
nkeynes@545 | 63 | * @return TRUE if supported, otherwise FALSE. |
nkeynes@545 | 64 | */ |
nkeynes@545 | 65 | gboolean isServerGLXExtensionSupported( Display *display, int screen, |
nkeynes@736 | 66 | const char *extension ) |
nkeynes@545 | 67 | { |
nkeynes@545 | 68 | const char *extensions = NULL; |
nkeynes@545 | 69 | const char *start; |
nkeynes@545 | 70 | char *where, *terminator; |
nkeynes@545 | 71 | |
nkeynes@545 | 72 | /* Extension names should not have spaces. */ |
nkeynes@545 | 73 | where = strchr(extension, ' '); |
nkeynes@545 | 74 | if (where || *extension == '\0') |
nkeynes@736 | 75 | return 0; |
nkeynes@545 | 76 | extensions = glXQueryServerString(display, screen, GLX_EXTENSIONS); |
nkeynes@545 | 77 | start = extensions; |
nkeynes@545 | 78 | for (;;) { |
nkeynes@736 | 79 | where = strstr((const char *) start, extension); |
nkeynes@736 | 80 | if (!where) |
nkeynes@736 | 81 | break; |
nkeynes@736 | 82 | terminator = where + strlen(extension); |
nkeynes@736 | 83 | if (where == start || *(where - 1) == ' ') |
nkeynes@736 | 84 | if (*terminator == ' ' || *terminator == '\0') |
nkeynes@736 | 85 | return TRUE; |
nkeynes@736 | 86 | start = terminator; |
nkeynes@545 | 87 | } |
nkeynes@545 | 88 | return FALSE; |
nkeynes@545 | 89 | } |
nkeynes@545 | 90 | |
nkeynes@545 | 91 | gboolean video_glx_init( Display *display, int screen ) |
nkeynes@545 | 92 | { |
nkeynes@545 | 93 | int major, minor; |
nkeynes@982 | 94 | int glx_major, glx_minor, glx_error; |
nkeynes@545 | 95 | |
nkeynes@545 | 96 | if( glx_is_initialized ) { |
nkeynes@545 | 97 | return TRUE; |
nkeynes@545 | 98 | } |
nkeynes@545 | 99 | |
nkeynes@982 | 100 | Bool result = XQueryExtension( display, "GLX", &glx_major, &glx_minor, &glx_error ) && |
nkeynes@982 | 101 | glXQueryVersion( display, &major, &minor ); |
nkeynes@982 | 102 | if( result == False ) { |
nkeynes@982 | 103 | ERROR( "GLX not supported on display" ); |
nkeynes@982 | 104 | return FALSE; |
nkeynes@545 | 105 | } |
nkeynes@545 | 106 | |
nkeynes@982 | 107 | glx_version = (major*100) + minor; |
nkeynes@982 | 108 | |
nkeynes@863 | 109 | #ifdef APPLE_BUILD |
nkeynes@863 | 110 | /* fbconfig is broken on at least the 10.5 GLX implementation */ |
nkeynes@863 | 111 | glx_fbconfig_supported = FALSE; |
nkeynes@863 | 112 | #else |
nkeynes@545 | 113 | glx_fbconfig_supported = (glx_version >= 103 || |
nkeynes@736 | 114 | isServerGLXExtensionSupported(display, screen, |
nkeynes@736 | 115 | "GLX_SGIX_fbconfig") ); |
nkeynes@863 | 116 | #endif |
nkeynes@545 | 117 | glx_pbuffer_supported = (glx_version >= 103 || |
nkeynes@736 | 118 | isServerGLXExtensionSupported(display, screen, |
nkeynes@736 | 119 | "GLX_SGIX_pbuffer") ); |
nkeynes@863 | 120 | // glx_fbconfig_supported = FALSE; |
nkeynes@545 | 121 | if( glx_fbconfig_supported ) { |
nkeynes@736 | 122 | int nelem; |
nkeynes@1251 | 123 | glx_depth_bits = 24; |
nkeynes@545 | 124 | int fb_attribs[] = { GLX_DRAWABLE_TYPE, |
nkeynes@736 | 125 | GLX_PBUFFER_BIT|GLX_WINDOW_BIT, |
nkeynes@736 | 126 | GLX_RENDER_TYPE, GLX_RGBA_BIT, |
nkeynes@863 | 127 | GLX_DEPTH_SIZE, 24, |
nkeynes@863 | 128 | GLX_STENCIL_SIZE, 8, 0 }; |
nkeynes@736 | 129 | GLXFBConfig *configs = glXChooseFBConfig( display, screen, |
nkeynes@736 | 130 | fb_attribs, &nelem ); |
nkeynes@606 | 131 | |
nkeynes@736 | 132 | if( configs == NULL || nelem == 0 ) { |
nkeynes@736 | 133 | /* Try a 16-bit depth buffer and see if it helps */ |
nkeynes@736 | 134 | fb_attribs[5] = 16; |
nkeynes@1251 | 135 | glx_depth_bits = 16; |
nkeynes@736 | 136 | configs = glXChooseFBConfig( display, screen, fb_attribs, &nelem ); |
nkeynes@736 | 137 | if( nelem > 0 ) { |
nkeynes@676 | 138 | WARN( "Using a 16-bit depth buffer - expect video glitches" ); |
nkeynes@676 | 139 | } |
nkeynes@545 | 140 | |
nkeynes@676 | 141 | } |
nkeynes@676 | 142 | if( configs == NULL || nelem == 0 ) { |
nkeynes@736 | 143 | /* Still didn't work. Fallback to 1.2 methods */ |
nkeynes@736 | 144 | glx_fbconfig_supported = FALSE; |
nkeynes@736 | 145 | glx_pbuffer_supported = FALSE; |
nkeynes@736 | 146 | } else { |
nkeynes@736 | 147 | glx_fbconfig = configs[0]; |
nkeynes@736 | 148 | glx_visual = glXGetVisualFromFBConfig(display, glx_fbconfig); |
nkeynes@736 | 149 | XFree(configs); |
nkeynes@736 | 150 | } |
nkeynes@545 | 151 | } |
nkeynes@545 | 152 | |
nkeynes@545 | 153 | if( !glx_fbconfig_supported ) { |
nkeynes@1251 | 154 | glx_depth_bits = 24; |
nkeynes@863 | 155 | int attribs[] = { GLX_RGBA, GLX_DEPTH_SIZE, 24, GLX_STENCIL_SIZE, 8, 0 }; |
nkeynes@736 | 156 | glx_visual = glXChooseVisual( display, screen, attribs ); |
nkeynes@676 | 157 | if( glx_visual == NULL ) { |
nkeynes@676 | 158 | /* Try the 16-bit fallback here too */ |
nkeynes@1251 | 159 | glx_depth_bits = 16; |
nkeynes@676 | 160 | attribs[2] = 16; |
nkeynes@676 | 161 | glx_visual = glXChooseVisual( display, screen, attribs ); |
nkeynes@676 | 162 | if( glx_visual != NULL ) { |
nkeynes@676 | 163 | WARN( "Using a 16-bit depth buffer - expect video glitches" ); |
nkeynes@676 | 164 | } |
nkeynes@676 | 165 | } |
nkeynes@545 | 166 | } |
nkeynes@606 | 167 | |
nkeynes@606 | 168 | if( glx_visual == NULL ) { |
nkeynes@606 | 169 | return FALSE; |
nkeynes@606 | 170 | } |
nkeynes@606 | 171 | |
nkeynes@545 | 172 | glx_is_initialized = TRUE; |
nkeynes@545 | 173 | return TRUE; |
nkeynes@545 | 174 | } |
nkeynes@545 | 175 | |
nkeynes@1134 | 176 | static void video_glx_print_info( FILE *out ) |
nkeynes@1134 | 177 | { |
nkeynes@1134 | 178 | XWindowAttributes attr; |
nkeynes@1134 | 179 | |
nkeynes@1134 | 180 | if( !XGetWindowAttributes(video_x11_display, video_x11_window, &attr) ) |
nkeynes@1134 | 181 | return; /* Failed */ |
nkeynes@1134 | 182 | int screen = XScreenNumberOfScreen(attr.screen); |
nkeynes@1134 | 183 | |
nkeynes@1134 | 184 | fprintf( out, "GLX Server: %s %s\n", glXQueryServerString(video_x11_display, screen, GLX_VENDOR), |
nkeynes@1134 | 185 | glXQueryServerString(video_x11_display, screen, GLX_VERSION) ); |
nkeynes@1134 | 186 | fprintf( out, "GLX Client: %s %s\n", glXGetClientString(video_x11_display, GLX_VENDOR), |
nkeynes@1134 | 187 | glXGetClientString(video_x11_display, GLX_VERSION) ); |
nkeynes@1134 | 188 | fprintf( out, "GLX Server Extensions:\n" ); |
nkeynes@1134 | 189 | fprint_extensions( out, glXQueryServerString(video_x11_display, screen, GLX_EXTENSIONS) ); |
nkeynes@1134 | 190 | fprintf( out, "GLX Client Extensions:\n" ); |
nkeynes@1134 | 191 | fprint_extensions( out, glXGetClientString(video_x11_display, GLX_EXTENSIONS) ); |
nkeynes@1134 | 192 | fprintf( out, "GLX Extensions:\n" ); |
nkeynes@1134 | 193 | fprint_extensions( out, glXQueryExtensionsString(video_x11_display, screen) ); |
nkeynes@1134 | 194 | |
nkeynes@1134 | 195 | } |
nkeynes@1134 | 196 | |
nkeynes@545 | 197 | gboolean video_glx_init_context( Display *display, Window window ) |
nkeynes@545 | 198 | { |
nkeynes@545 | 199 | if( glx_fbconfig_supported ) { |
nkeynes@545 | 200 | glx_context = glXCreateNewContext( display, glx_fbconfig, |
nkeynes@736 | 201 | GLX_RGBA_TYPE, NULL, True ); |
nkeynes@736 | 202 | if( glx_context == NULL ) { |
nkeynes@736 | 203 | ERROR( "Unable to create a GLX Context."); |
nkeynes@736 | 204 | return FALSE; |
nkeynes@736 | 205 | } |
nkeynes@545 | 206 | |
nkeynes@1001 | 207 | if( glXMakeCurrent( display, window, |
nkeynes@736 | 208 | glx_context ) == False ) { |
nkeynes@736 | 209 | ERROR( "Unable to prepare GLX context for drawing" ); |
nkeynes@736 | 210 | glXDestroyContext( display, glx_context ); |
nkeynes@736 | 211 | return FALSE; |
nkeynes@736 | 212 | } |
nkeynes@545 | 213 | } else { |
nkeynes@545 | 214 | glx_context = glXCreateContext( display, glx_visual, None, True ); |
nkeynes@736 | 215 | if( glx_context == NULL ) { |
nkeynes@736 | 216 | ERROR( "Unable to create a GLX Context."); |
nkeynes@736 | 217 | return FALSE; |
nkeynes@736 | 218 | } |
nkeynes@736 | 219 | |
nkeynes@736 | 220 | if( glXMakeCurrent( display, window, glx_context ) == False ) { |
nkeynes@736 | 221 | ERROR( "Unable to prepare GLX context for drawing" ); |
nkeynes@736 | 222 | glXDestroyContext( display, glx_context ); |
nkeynes@736 | 223 | return FALSE; |
nkeynes@736 | 224 | } |
nkeynes@545 | 225 | } |
nkeynes@545 | 226 | |
nkeynes@545 | 227 | if( !glXIsDirect(display, glx_context) ) { |
nkeynes@736 | 228 | WARN( "Not using direct rendering - this is likely to be slow" ); |
nkeynes@545 | 229 | } |
nkeynes@545 | 230 | |
nkeynes@545 | 231 | video_x11_display = display; |
nkeynes@545 | 232 | video_x11_window = window; |
nkeynes@545 | 233 | |
nkeynes@545 | 234 | return TRUE; |
nkeynes@545 | 235 | } |
nkeynes@545 | 236 | |
nkeynes@545 | 237 | gboolean video_glx_init_driver( display_driver_t driver ) |
nkeynes@545 | 238 | { |
nkeynes@1076 | 239 | driver->swap_buffers = video_glx_swap_buffers; |
nkeynes@1134 | 240 | driver->print_info = video_glx_print_info; |
nkeynes@1134 | 241 | driver->capabilities.has_gl = TRUE; |
nkeynes@1251 | 242 | driver->capabilities.depth_bits = glx_depth_bits; |
nkeynes@1258 | 243 | if( !gl_init_driver(driver, !glx_pbuffer_supported) ) { |
nkeynes@545 | 244 | video_glx_shutdown(); |
nkeynes@736 | 245 | return FALSE; |
nkeynes@545 | 246 | } |
nkeynes@1258 | 247 | if( driver->create_render_buffer == NULL ) { |
nkeynes@1258 | 248 | /* If we get here, pbuffers are supported and FBO didn't work */ |
nkeynes@1258 | 249 | glx_pbuffer_init(driver); |
nkeynes@1258 | 250 | } |
nkeynes@545 | 251 | return TRUE; |
nkeynes@545 | 252 | } |
nkeynes@545 | 253 | |
nkeynes@545 | 254 | |
nkeynes@545 | 255 | void video_glx_shutdown() |
nkeynes@545 | 256 | { |
nkeynes@736 | 257 | // texcache_gl_shutdown(); |
nkeynes@545 | 258 | glx_is_initialized = FALSE; |
nkeynes@545 | 259 | if( glx_context != NULL ) { |
nkeynes@545 | 260 | glXDestroyContext( video_x11_display, glx_context ); |
nkeynes@736 | 261 | glx_context = NULL; |
nkeynes@545 | 262 | } |
nkeynes@545 | 263 | if( glx_visual != NULL ) { |
nkeynes@545 | 264 | XFree(glx_visual); |
nkeynes@736 | 265 | glx_visual = NULL; |
nkeynes@545 | 266 | } |
nkeynes@545 | 267 | } |
nkeynes@545 | 268 | |
nkeynes@545 | 269 | |
nkeynes@545 | 270 | XVisualInfo *video_glx_get_visual() |
nkeynes@545 | 271 | { |
nkeynes@545 | 272 | return glx_visual; |
nkeynes@545 | 273 | } |
nkeynes@545 | 274 | |
nkeynes@545 | 275 | |
nkeynes@545 | 276 | int video_glx_load_font( const gchar *font_name ) |
nkeynes@545 | 277 | { |
nkeynes@545 | 278 | int lists; |
nkeynes@545 | 279 | XFontStruct *font = XLoadQueryFont(video_x11_display, font_name ); |
nkeynes@545 | 280 | if (font == NULL) |
nkeynes@736 | 281 | return -1; |
nkeynes@736 | 282 | |
nkeynes@545 | 283 | lists = glGenLists(96); |
nkeynes@545 | 284 | glXUseXFont(font->fid, 32, 96, lists); |
nkeynes@545 | 285 | XFreeFont(video_x11_display, font); |
nkeynes@545 | 286 | return lists; |
nkeynes@545 | 287 | } |
nkeynes@545 | 288 | |
nkeynes@545 | 289 | |
nkeynes@1076 | 290 | static void video_glx_swap_buffers( void ) |
nkeynes@545 | 291 | { |
nkeynes@545 | 292 | glXSwapBuffers( video_x11_display, video_x11_window ); |
nkeynes@545 | 293 | } |
nkeynes@545 | 294 | |
nkeynes@545 | 295 | void video_glx_make_window_current( void ) |
nkeynes@545 | 296 | { |
nkeynes@545 | 297 | glXMakeCurrent( video_x11_display, video_x11_window, glx_context ); |
nkeynes@545 | 298 | } |
nkeynes@545 | 299 | |
nkeynes@545 | 300 | |
nkeynes@545 | 301 | // Pbuffer support |
nkeynes@545 | 302 | |
nkeynes@545 | 303 | /** |
nkeynes@545 | 304 | * Construct the initial frame buffers and allocate ids for everything. |
nkeynes@545 | 305 | * The render handling driver methods are set to the fbo versions. |
nkeynes@545 | 306 | */ |
nkeynes@545 | 307 | static void glx_pbuffer_init( display_driver_t driver ) |
nkeynes@545 | 308 | { |
nkeynes@863 | 309 | GLint stencil_bits = 0; |
nkeynes@863 | 310 | |
nkeynes@863 | 311 | /* Retrieve the number of stencil bits */ |
nkeynes@863 | 312 | glGetIntegerv( GL_STENCIL_BITS, &stencil_bits ); |
nkeynes@863 | 313 | driver->capabilities.stencil_bits = stencil_bits; |
nkeynes@863 | 314 | |
nkeynes@545 | 315 | glGenTextures( 1, &glx_pbuffer_texture ); |
nkeynes@545 | 316 | driver->create_render_buffer = glx_pbuffer_create_render_buffer; |
nkeynes@545 | 317 | driver->destroy_render_buffer = glx_pbuffer_destroy_render_buffer; |
nkeynes@545 | 318 | driver->set_render_target = glx_pbuffer_set_render_target; |
nkeynes@805 | 319 | driver->finish_render = glx_pbuffer_finish_render; |
nkeynes@545 | 320 | driver->display_render_buffer = glx_pbuffer_display_render_buffer; |
nkeynes@545 | 321 | driver->load_frame_buffer = glx_pbuffer_load_frame_buffer; |
nkeynes@545 | 322 | driver->display_blank = glx_pbuffer_display_blank; |
nkeynes@545 | 323 | driver->read_render_buffer = glx_pbuffer_read_render_buffer; |
nkeynes@545 | 324 | } |
nkeynes@545 | 325 | |
nkeynes@545 | 326 | void glx_pbuffer_shutdown() |
nkeynes@545 | 327 | { |
nkeynes@545 | 328 | glDeleteTextures( 1, &glx_pbuffer_texture ); |
nkeynes@545 | 329 | } |
nkeynes@545 | 330 | |
nkeynes@805 | 331 | static render_buffer_t glx_pbuffer_create_render_buffer( uint32_t width, uint32_t height, GLuint tex_id ) |
nkeynes@545 | 332 | { |
nkeynes@545 | 333 | int attribs[] = { GLX_PBUFFER_WIDTH, width, GLX_PBUFFER_HEIGHT, height, |
nkeynes@736 | 334 | GLX_PRESERVED_CONTENTS, True, 0 }; |
nkeynes@545 | 335 | GLXPbuffer pb = glXCreatePbuffer( video_x11_display, glx_fbconfig, attribs ); |
nkeynes@545 | 336 | if( pb == (GLXPbuffer)NULL ) { |
nkeynes@736 | 337 | ERROR( "Unable to create pbuffer" ); |
nkeynes@736 | 338 | return NULL; |
nkeynes@545 | 339 | } |
nkeynes@545 | 340 | render_buffer_t buffer = calloc( sizeof(struct render_buffer), 1 ); |
nkeynes@545 | 341 | buffer->width = width; |
nkeynes@545 | 342 | buffer->height = height; |
nkeynes@545 | 343 | buffer->buf_id = pb; |
nkeynes@805 | 344 | buffer->tex_id = tex_id; |
nkeynes@545 | 345 | return buffer; |
nkeynes@545 | 346 | } |
nkeynes@545 | 347 | |
nkeynes@545 | 348 | static void glx_pbuffer_destroy_render_buffer( render_buffer_t buffer ) |
nkeynes@545 | 349 | { |
nkeynes@545 | 350 | glXDestroyPbuffer( video_x11_display, (GLXPbuffer)buffer->buf_id ); |
nkeynes@545 | 351 | buffer->buf_id = 0; |
nkeynes@545 | 352 | free( buffer ); |
nkeynes@545 | 353 | } |
nkeynes@545 | 354 | |
nkeynes@545 | 355 | static gboolean glx_pbuffer_set_render_target( render_buffer_t buffer ) |
nkeynes@545 | 356 | { |
nkeynes@545 | 357 | glFinish(); |
nkeynes@545 | 358 | if( glXMakeContextCurrent( video_x11_display, (GLXPbuffer)buffer->buf_id, (GLXPbuffer)buffer->buf_id, glx_context ) == False ) { |
nkeynes@736 | 359 | ERROR( "Make context current (pbuffer) failed!" ); |
nkeynes@545 | 360 | } |
nkeynes@545 | 361 | /* setup the gl context */ |
nkeynes@545 | 362 | glViewport( 0, 0, buffer->width, buffer->height ); |
nkeynes@545 | 363 | glDrawBuffer(GL_FRONT); |
nkeynes@736 | 364 | |
nkeynes@545 | 365 | return TRUE; |
nkeynes@545 | 366 | } |
nkeynes@545 | 367 | |
nkeynes@805 | 368 | static void glx_pbuffer_finish_render( render_buffer_t buffer ) |
nkeynes@805 | 369 | { |
nkeynes@805 | 370 | glFinish(); |
nkeynes@805 | 371 | if( buffer->tex_id != 0 ) { |
nkeynes@805 | 372 | // The pbuffer should already be the current context, but just in case... |
nkeynes@805 | 373 | glXMakeContextCurrent( video_x11_display, (GLXPbuffer)buffer->buf_id, (GLXPbuffer)buffer->buf_id, glx_context ); |
nkeynes@1222 | 374 | glBindTexture( GL_TEXTURE_2D, buffer->tex_id ); |
nkeynes@1222 | 375 | glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 0, buffer->width, buffer->height, 0 ); |
nkeynes@805 | 376 | } |
nkeynes@805 | 377 | } |
nkeynes@805 | 378 | |
nkeynes@805 | 379 | |
nkeynes@545 | 380 | /** |
nkeynes@545 | 381 | * Render the texture holding the given buffer to the front window |
nkeynes@545 | 382 | * buffer. |
nkeynes@545 | 383 | */ |
nkeynes@669 | 384 | static void glx_pbuffer_display_render_buffer( render_buffer_t buffer ) |
nkeynes@545 | 385 | { |
nkeynes@545 | 386 | glFinish(); |
nkeynes@545 | 387 | glReadBuffer( GL_FRONT ); |
nkeynes@545 | 388 | glXMakeContextCurrent( video_x11_display, (GLXPbuffer)buffer->buf_id, (GLXPbuffer)buffer->buf_id, glx_context ); |
nkeynes@1222 | 389 | glBindTexture( GL_TEXTURE_2D, glx_pbuffer_texture ); |
nkeynes@1222 | 390 | glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 0, buffer->width, buffer->height, 0 ); |
nkeynes@545 | 391 | video_glx_make_window_current(); |
nkeynes@545 | 392 | gl_texture_window( buffer->width, buffer->height, glx_pbuffer_texture, buffer->inverted ); |
nkeynes@545 | 393 | } |
nkeynes@545 | 394 | |
nkeynes@545 | 395 | static void glx_pbuffer_load_frame_buffer( frame_buffer_t frame, render_buffer_t buffer ) |
nkeynes@545 | 396 | { |
nkeynes@545 | 397 | glFinish(); |
nkeynes@545 | 398 | glXMakeContextCurrent( video_x11_display, (GLXPbuffer)buffer->buf_id, (GLXPbuffer)buffer->buf_id, glx_context ); |
nkeynes@545 | 399 | GLenum type = colour_formats[frame->colour_format].type; |
nkeynes@545 | 400 | GLenum format = colour_formats[frame->colour_format].format; |
nkeynes@545 | 401 | int bpp = colour_formats[frame->colour_format].bpp; |
nkeynes@545 | 402 | int rowstride = (frame->rowstride / bpp) - frame->width; |
nkeynes@736 | 403 | |
nkeynes@1246 | 404 | gl_framebuffer_setup(); |
nkeynes@545 | 405 | glPixelStorei( GL_UNPACK_ROW_LENGTH, rowstride ); |
nkeynes@545 | 406 | glRasterPos2f(0.375, frame->height-0.375); |
nkeynes@545 | 407 | glPixelZoom( 1.0, 1.0 ); |
nkeynes@545 | 408 | glDrawPixels( frame->width, frame->height, format, type, frame->data ); |
nkeynes@1236 | 409 | glPixelStorei( GL_UNPACK_ROW_LENGTH, 0 ); |
nkeynes@545 | 410 | glFlush(); |
nkeynes@1246 | 411 | gl_framebuffer_cleanup(); |
nkeynes@545 | 412 | } |
nkeynes@545 | 413 | |
nkeynes@669 | 414 | static void glx_pbuffer_display_blank( uint32_t colour ) |
nkeynes@545 | 415 | { |
nkeynes@545 | 416 | glFinish(); |
nkeynes@545 | 417 | video_glx_make_window_current(); |
nkeynes@669 | 418 | gl_display_blank( colour ); |
nkeynes@545 | 419 | } |
nkeynes@545 | 420 | |
nkeynes@545 | 421 | static gboolean glx_pbuffer_read_render_buffer( unsigned char *target, render_buffer_t buffer, |
nkeynes@736 | 422 | int rowstride, int format ) |
nkeynes@545 | 423 | { |
nkeynes@545 | 424 | glXMakeCurrent( video_x11_display, (GLXDrawable)buffer->buf_id, glx_context ); |
nkeynes@545 | 425 | glReadBuffer( GL_FRONT ); |
nkeynes@545 | 426 | return gl_read_render_buffer( target, buffer, rowstride, format ); |
nkeynes@545 | 427 | } |
nkeynes@545 | 428 | |
nkeynes@545 | 429 |
.