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[mplayer/glamo.git] / libvo / vo_gl2.c
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1 /*
2 * X11/OpenGL interface
3 * based on video_out_x11 by Aaron Holtzman,
4 * and WS opengl window manager by Pontscho/Fresh!
6 * This file is part of MPlayer.
8 * MPlayer 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.
13 * MPlayer 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.
18 * You should have received a copy of the GNU General Public License along
19 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <string.h>
27 #include "config.h"
28 #include "mp_msg.h"
29 #include "subopt-helper.h"
30 #include "video_out.h"
31 #include "video_out_internal.h"
32 #include "sub.h"
34 #include "gl_common.h"
35 #include "aspect.h"
36 #ifdef CONFIG_GUI
37 #include "gui/interface.h"
38 #endif
40 #undef TEXTUREFORMAT_ALWAYS
41 #ifdef __APPLE__
42 #define TEXTUREFORMAT_ALWAYS GL_RGBA8
43 #endif
45 //! force texture height, useful for debugging
46 #define TEXTURE_HEIGHT 128
47 #undef TEXTURE_HEIGHT
48 //! force texture width, useful for debugging
49 #define TEXTURE_WIDTH 128
50 #undef TEXTURE_WIDTH
52 static const vo_info_t info =
54 "X11 (OpenGL) - multiple textures version",
55 "gl2",
56 "Arpad Gereoffy & Sven Goethel",
60 const LIBVO_EXTERN(gl2)
62 /* local data */
63 static unsigned char *ImageData=NULL;
65 #ifdef GL_WIN32
66 static int gl_vinfo = 0;
67 static HGLRC gl_context = 0;
68 #define update_xinerama_info w32_update_xinerama_info
69 #define vo_init vo_w32_init
70 #define vo_window vo_w32_window
71 #else
72 static XVisualInfo *gl_vinfo = NULL;
73 static GLXContext gl_context = 0;
74 #endif
76 static uint32_t image_width;
77 static uint32_t image_height;
78 static uint32_t image_format;
79 static uint32_t image_bpp;
80 static uint32_t image_bytes;
82 static int int_pause;
84 static uint32_t texture_width;
85 static uint32_t texture_height;
86 static int texnumx, texnumy, raw_line_len;
87 static int texdirty;
88 static struct TexSquare * texgrid = NULL;
89 static GLuint fragprog;
90 static GLuint lookupTex;
91 static GLint gl_internal_format;
92 static int rgb_sz, r_sz, g_sz, b_sz, a_sz;
93 static GLenum gl_bitmap_format;
94 static GLenum gl_bitmap_type;
95 static int isGL12 = GL_FALSE;
97 static int gl_bilinear=1;
98 static int gl_antialias=0;
99 static int use_yuv;
100 static int use_glFinish;
102 static void (*draw_alpha_fnc)
103 (int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride);
106 /* The squares that are tiled to make up the game screen polygon */
108 struct TexSquare
110 GLubyte *texture;
111 GLuint texobj;
112 GLuint uvtexobjs[2];
113 GLfloat fx, fy, fw, fh;
116 static GLint getInternalFormat(void)
118 #ifdef GL_WIN32
119 PIXELFORMATDESCRIPTOR pfd;
120 HDC vo_hdc = GetDC(vo_window);
121 int pf = GetPixelFormat(vo_hdc);
122 if (!DescribePixelFormat(vo_hdc, pf, sizeof pfd, &pfd)) {
123 r_sz = g_sz = b_sz = a_sz = 0;
124 } else {
125 r_sz = pfd.cRedBits;
126 g_sz = pfd.cGreenBits;
127 b_sz = pfd.cBlueBits;
128 a_sz = pfd.cAlphaBits;
130 ReleaseDC(vo_window, vo_hdc);
131 #else
132 if (glXGetConfig(mDisplay, gl_vinfo, GLX_RED_SIZE, &r_sz) != 0) r_sz = 0;
133 if (glXGetConfig(mDisplay, gl_vinfo, GLX_GREEN_SIZE, &g_sz) != 0) g_sz = 0;
134 if (glXGetConfig(mDisplay, gl_vinfo, GLX_BLUE_SIZE, &b_sz) != 0) b_sz = 0;
135 if (glXGetConfig(mDisplay, gl_vinfo, GLX_ALPHA_SIZE, &a_sz) != 0) a_sz = 0;
136 #endif
138 rgb_sz=r_sz+g_sz+b_sz;
139 if(rgb_sz<=0) rgb_sz=24;
141 #ifdef TEXTUREFORMAT_ALWAYS
142 return TEXTUREFORMAT_ALWAYS;
143 #else
144 if(r_sz==3 && g_sz==3 && b_sz==2 && a_sz==0)
145 return GL_R3_G3_B2;
146 if(r_sz==4 && g_sz==4 && b_sz==4 && a_sz==0)
147 return GL_RGB4;
148 if(r_sz==5 && g_sz==5 && b_sz==5 && a_sz==0)
149 return GL_RGB5;
150 if(r_sz==8 && g_sz==8 && b_sz==8 && a_sz==0)
151 return GL_RGB8;
152 if(r_sz==10 && g_sz==10 && b_sz==10 && a_sz==0)
153 return GL_RGB10;
154 if(r_sz==2 && g_sz==2 && b_sz==2 && a_sz==2)
155 return GL_RGBA2;
156 if(r_sz==4 && g_sz==4 && b_sz==4 && a_sz==4)
157 return GL_RGBA4;
158 if(r_sz==5 && g_sz==5 && b_sz==5 && a_sz==1)
159 return GL_RGB5_A1;
160 if(r_sz==8 && g_sz==8 && b_sz==8 && a_sz==8)
161 return GL_RGBA8;
162 if(r_sz==10 && g_sz==10 && b_sz==10 && a_sz==2)
163 return GL_RGB10_A2;
164 #endif
165 return GL_RGB;
168 static int initTextures(void)
170 struct TexSquare *tsq=0;
171 GLfloat texpercx, texpercy;
172 int s;
173 int x=0, y=0;
174 GLint format=0;
176 // textures smaller than 64x64 might not be supported
177 s=64;
178 while (s<image_width)
179 s*=2;
180 texture_width=s;
182 s=64;
183 while (s<image_height)
184 s*=2;
185 texture_height=s;
187 if (image_format != IMGFMT_YV12)
188 gl_internal_format = getInternalFormat();
190 /* Test the max texture size */
191 do {
192 glTexImage2D (GL_PROXY_TEXTURE_2D, 0,
193 gl_internal_format,
194 texture_width, texture_height,
195 0, gl_bitmap_format, gl_bitmap_type, NULL);
197 glGetTexLevelParameteriv
198 (GL_PROXY_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format);
200 if (format != gl_internal_format)
202 mp_msg (MSGT_VO, MSGL_V, "[gl2] Needed texture [%dx%d] too big, trying ",
203 texture_height, texture_width);
205 if (texture_width > texture_height)
206 texture_width /= 2;
207 else
208 texture_height /= 2;
210 mp_msg (MSGT_VO, MSGL_V, "[%dx%d] !\n", texture_height, texture_width);
212 if(texture_width < 64 || texture_height < 64) {
213 mp_msg (MSGT_VO, MSGL_FATAL, "[gl2] Give up .. usable texture size not avaiable, or texture config error !\n");
214 return -1;
218 while (format != gl_internal_format && texture_width > 1 && texture_height > 1);
219 #ifdef TEXTURE_WIDTH
220 texture_width = TEXTURE_WIDTH;
221 #endif
222 #ifdef TEXTURE_HEIGHT
223 texture_height = TEXTURE_HEIGHT;
224 #endif
226 texnumx = image_width / texture_width;
227 if ((image_width % texture_width) > 0)
228 texnumx++;
230 texnumy = image_height / texture_height;
231 if ((image_height % texture_height) > 0)
232 texnumy++;
234 mp_msg(MSGT_VO, MSGL_V, "[gl2] Creating %dx%d textures of size %dx%d ...\n",
235 texnumx, texnumy, texture_width,texture_height);
237 /* Allocate the texture memory */
239 texpercx = (GLfloat) texture_width / (GLfloat) image_width;
240 texpercy = (GLfloat) texture_height / (GLfloat) image_height;
242 if (texgrid)
243 free(texgrid);
244 texgrid = calloc (texnumx * texnumy, sizeof (struct TexSquare));
246 raw_line_len = image_width * image_bytes;
248 mp_msg (MSGT_VO, MSGL_DBG2, "[gl2] texture-usage %d*width=%d, %d*height=%d\n",
249 (int) texnumx, (int) texture_width, (int) texnumy,
250 (int) texture_height);
252 tsq = texgrid;
253 for (y = 0; y < texnumy; y++) {
254 for (x = 0; x < texnumx; x++) {
255 tsq->fx = x * texpercx;
256 tsq->fy = y * texpercy;
257 tsq->fw = texpercx;
258 tsq->fh = texpercy;
260 tsq->texobj=0;
261 tsq->uvtexobjs[0] = tsq->uvtexobjs[1] = 0;
263 glGenTextures (1, &(tsq->texobj));
265 glBindTexture (GL_TEXTURE_2D, tsq->texobj);
266 if (image_format == IMGFMT_YV12) {
267 glGenTextures(2, tsq->uvtexobjs);
268 ActiveTexture(GL_TEXTURE1);
269 glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[0]);
270 ActiveTexture(GL_TEXTURE2);
271 glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[1]);
272 ActiveTexture(GL_TEXTURE0);
275 glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format, gl_bitmap_type, GL_LINEAR,
276 texture_width, texture_height, 0);
278 glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
279 if (image_format == IMGFMT_YV12) {
280 ActiveTexture(GL_TEXTURE1);
281 glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format, gl_bitmap_type, GL_LINEAR,
282 texture_width / 2, texture_height / 2, 128);
283 ActiveTexture(GL_TEXTURE2);
284 glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format, gl_bitmap_type, GL_LINEAR,
285 texture_width / 2, texture_height / 2, 128);
286 ActiveTexture(GL_TEXTURE0);
289 tsq++;
290 } /* for all texnumx */
291 } /* for all texnumy */
293 return 0;
296 static void resetTexturePointers(unsigned char *imageSource)
298 unsigned char *texdata_start, *line_start;
299 struct TexSquare *tsq = texgrid;
300 int x=0, y=0;
302 line_start = (unsigned char *) imageSource;
304 for (y = 0; y < texnumy; y++) {
305 texdata_start = line_start;
306 for (x = 0; x < texnumx; x++) {
307 tsq->texture = texdata_start;
308 texdata_start += texture_width * image_bytes;
309 tsq++;
310 } /* for all texnumx */
311 line_start += texture_height * raw_line_len;
312 } /* for all texnumy */
315 static void gl_set_bilinear (int val)
317 int x, y;
319 if(val>=0)
320 gl_bilinear = val;
321 else
322 gl_bilinear++;
324 gl_bilinear=gl_bilinear%2;
325 /* no mipmap yet .. */
327 for (y = 0; y < texnumy; y++) {
328 for (x = 0; x < texnumx; x++) {
329 glBindTexture (GL_TEXTURE_2D, texgrid[y * texnumx + x].texobj);
331 switch (gl_bilinear) {
332 case 0:
333 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
334 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
335 mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear off\n");
336 break;
337 case 1:
338 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
339 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
340 mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear linear\n");
341 break;
342 case 2:
343 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
344 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
345 mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap nearest\n");
346 break;
347 case 3:
348 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
349 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);
350 mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap linear\n");
351 break;
357 static void gl_set_antialias (int val)
359 gl_antialias=val;
361 if (gl_antialias) {
362 glShadeModel (GL_SMOOTH);
363 glEnable (GL_POLYGON_SMOOTH);
364 glEnable (GL_LINE_SMOOTH);
365 glEnable (GL_POINT_SMOOTH);
366 mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing on\n");
367 } else {
368 glShadeModel (GL_FLAT);
369 glDisable (GL_POLYGON_SMOOTH);
370 glDisable (GL_LINE_SMOOTH);
371 glDisable (GL_POINT_SMOOTH);
372 mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing off\n");
377 static void drawTextureDisplay (void)
379 struct TexSquare *square = texgrid;
380 int x, y;
382 glColor3f(1.0,1.0,1.0);
384 if (image_format == IMGFMT_YV12)
385 glEnableYUVConversion(GL_TEXTURE_2D, use_yuv);
386 for (y = 0; y < texnumy; y++) {
387 int thish = texture_height;
388 if (y == texnumy - 1 && image_height % texture_height)
389 thish = image_height % texture_height;
390 for (x = 0; x < texnumx; x++) {
391 int thisw = texture_width;
392 if (x == texnumx - 1 && image_width % texture_width)
393 thisw = image_width % texture_width;
394 glBindTexture (GL_TEXTURE_2D, square->texobj);
395 if (image_format == IMGFMT_YV12) {
396 ActiveTexture(GL_TEXTURE1);
397 glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[0]);
398 ActiveTexture(GL_TEXTURE2);
399 glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[1]);
400 ActiveTexture(GL_TEXTURE0);
403 if (texdirty) {
404 glUploadTex(GL_TEXTURE_2D, gl_bitmap_format, gl_bitmap_type,
405 square->texture, image_width * image_bytes,
406 0, 0, thisw, thish, 0);
409 glDrawTex(square->fx, square->fy, square->fw, square->fh,
410 0, 0, texture_width, texture_height,
411 texture_width, texture_height,
412 0, image_format == IMGFMT_YV12, 0);
413 square++;
414 } /* for all texnumx */
415 } /* for all texnumy */
416 if (image_format == IMGFMT_YV12)
417 glDisableYUVConversion(GL_TEXTURE_2D, use_yuv);
418 texdirty = 0;
422 static void resize(int *x,int *y){
423 mp_msg(MSGT_VO,MSGL_V,"[gl2] Resize: %dx%d\n",*x,*y);
424 if( vo_fs ) {
425 glClear(GL_COLOR_BUFFER_BIT);
426 aspect(x, y, A_ZOOM);
427 panscan_calc();
428 *x += vo_panscan_x;
429 *y += vo_panscan_y;
430 glViewport( (vo_screenwidth-*x)/2, (vo_screenheight-*y)/2, *x, *y);
431 } else {
432 //aspect(x, y, A_NOZOOM);
433 if (WinID >= 0) {
434 int top = 0, left = 0, w = *x, h = *y;
435 geometry(&top, &left, &w, &h, vo_screenwidth, vo_screenheight);
436 glViewport(top, left, w, h);
437 } else
438 glViewport( 0, 0, *x, *y );
441 glMatrixMode(GL_PROJECTION);
442 glLoadIdentity();
443 glOrtho (0, 1, 1, 0, -1.0, 1.0);
445 glMatrixMode(GL_MODELVIEW);
446 glLoadIdentity();
449 static void draw_alpha_32(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
450 vo_draw_alpha_rgb32(w,h,src,srca,stride,ImageData+4*(y0*image_width+x0),4*image_width);
453 static void draw_alpha_24(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
454 vo_draw_alpha_rgb24(w,h,src,srca,stride,ImageData+3*(y0*image_width+x0),3*image_width);
457 static void draw_alpha_16(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
458 vo_draw_alpha_rgb16(w,h,src,srca,stride,ImageData+2*(y0*image_width+x0),2*image_width);
461 static void draw_alpha_15(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
462 vo_draw_alpha_rgb15(w,h,src,srca,stride,ImageData+2*(y0*image_width+x0),2*image_width);
465 static void draw_alpha_null(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
468 #ifdef GL_WIN32
470 static int config_w32(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format) {
471 if (!vo_w32_config(d_width, d_height, flags))
472 return -1;
474 if (vo_fs)
475 aspect(&d_width, &d_height, A_ZOOM);
477 return 0;
480 #else
482 static int choose_glx_visual(Display *dpy, int scr, XVisualInfo *res_vi)
484 XVisualInfo template, *vi_list;
485 int vi_num, i, best_i, best_weight;
487 template.screen = scr;
488 vi_list = XGetVisualInfo(dpy, VisualScreenMask, &template, &vi_num);
489 if (!vi_list) return -1;
490 best_weight = 1000000; best_i=0;
491 for (i = 0; i < vi_num; i++) {
492 int val, res, w = 0;
493 /* of course, the visual must support OpenGL rendering... */
494 res = glXGetConfig(dpy, vi_list + i, GLX_USE_GL, &val);
495 if (res || val == False) continue;
496 /* also it must be doublebuffered ... */
497 res = glXGetConfig(dpy, vi_list + i, GLX_DOUBLEBUFFER, &val);
498 if (res || val == False) continue;
499 /* furthermore it must be RGBA (not color indexed) ... */
500 res = glXGetConfig(dpy, vi_list + i, GLX_RGBA, &val);
501 if (res || val == False) continue;
502 /* prefer less depth buffer size, */
503 res = glXGetConfig(dpy, vi_list + i, GLX_DEPTH_SIZE, &val);
504 if (res) continue;
505 w += val*2;
506 /* stencil buffer size */
507 res = glXGetConfig(dpy, vi_list + i, GLX_STENCIL_SIZE, &val);
508 if (res) continue;
509 w += val*2;
510 /* and colorbuffer alpha size */
511 res = glXGetConfig(dpy, vi_list + i, GLX_ALPHA_SIZE, &val);
512 if (res) continue;
513 w += val;
514 /* and finally, prefer DirectColor-ed visuals to allow color corrections */
515 if (vi_list[i].class != DirectColor) w += 100;
517 // avoid bad-looking visual with less that 8bit per color
518 res = glXGetConfig(dpy, vi_list + i, GLX_RED_SIZE, &val);
519 if (res) continue;
520 if (val < 8) w += 50;
521 res = glXGetConfig(dpy, vi_list + i, GLX_GREEN_SIZE, &val);
522 if (res) continue;
523 if (val < 8) w += 70;
524 res = glXGetConfig(dpy, vi_list + i, GLX_BLUE_SIZE, &val);
525 if (res) continue;
526 if (val < 8) w += 50;
528 if (w < best_weight) {
529 best_weight = w;
530 best_i = i;
533 if (best_weight < 1000000) *res_vi = vi_list[best_i];
534 XFree(vi_list);
535 return (best_weight < 1000000) ? 0 : -1;
538 static int config_glx(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format) {
539 XVisualInfo *vinfo, vinfo_buf;
540 vinfo = choose_glx_visual(mDisplay,mScreen,&vinfo_buf) < 0 ? NULL : &vinfo_buf;
541 if (vinfo == NULL) {
542 mp_msg(MSGT_VO, MSGL_FATAL, "[gl2] no GLX support present\n");
543 return -1;
546 vo_x11_create_vo_window(vinfo, vo_dx, vo_dy, d_width, d_height,
547 flags, vo_x11_create_colormap(vinfo), "gl2", title);
549 return 0;
551 #endif
553 #ifdef CONFIG_GUI
554 static int config_glx_gui(uint32_t d_width, uint32_t d_height) {
555 guiGetEvent( guiSetShVideo,0 ); // the GUI will set up / resize the window
556 return 0;
558 #endif
560 static int initGl(uint32_t d_width, uint32_t d_height)
562 fragprog = lookupTex = 0;
563 if (initTextures() < 0)
564 return -1;
566 glDisable(GL_BLEND);
567 glDisable(GL_DEPTH_TEST);
568 glDepthMask(GL_FALSE);
569 glDisable(GL_CULL_FACE);
570 glEnable (GL_TEXTURE_2D);
571 if (image_format == IMGFMT_YV12) {
572 gl_conversion_params_t params = {GL_TEXTURE_2D, use_yuv,
573 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0,
574 texture_width, texture_height};
575 switch (use_yuv) {
576 case YUV_CONVERSION_FRAGMENT_LOOKUP:
577 glGenTextures(1, &lookupTex);
578 ActiveTexture(GL_TEXTURE3);
579 glBindTexture(GL_TEXTURE_2D, lookupTex);
580 ActiveTexture(GL_TEXTURE0);
581 glBindTexture(GL_TEXTURE_2D, 0);
582 case YUV_CONVERSION_FRAGMENT_POW:
583 case YUV_CONVERSION_FRAGMENT:
584 if (!GenPrograms || !BindProgram) {
585 mp_msg(MSGT_VO, MSGL_ERR, "[gl] fragment program functions missing!\n");
586 break;
588 GenPrograms(1, &fragprog);
589 BindProgram(GL_FRAGMENT_PROGRAM, fragprog);
590 break;
592 glSetupYUVConversion(&params);
595 gl_set_antialias(0);
596 gl_set_bilinear(1);
598 mp_msg(MSGT_VO, MSGL_V, "[gl2] Using image_bpp=%d, image_bytes=%d, \n\tgl_bitmap_format=%s, gl_bitmap_type=%s, \n\trgb_size=%d (%d,%d,%d), a_sz=%d, \n\tgl_internal_format=%s\n",
599 image_bpp, image_bytes,
600 glValName(gl_bitmap_format), glValName(gl_bitmap_type),
601 rgb_sz, r_sz, g_sz, b_sz, a_sz, glValName(gl_internal_format));
603 resize(&d_width, &d_height);
605 glClearColor( 0.0f,0.0f,0.0f,0.0f );
606 glClear( GL_COLOR_BUFFER_BIT );
608 drawTextureDisplay ();
610 return 0;
613 /* connect to server, create and map window,
614 * allocate colors and (shared) memory
616 static int
617 config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
619 const unsigned char * glVersion;
621 image_height = height;
622 image_width = width;
623 image_format = format;
625 int_pause = 0;
627 #ifdef CONFIG_GUI
628 if (use_gui) {
629 if (config_glx_gui(d_width, d_height) == -1)
630 return -1;
632 #ifndef GL_WIN32
633 else
634 #endif
635 #endif
636 #ifdef GL_WIN32
637 if (config_w32(width, height, d_width, d_height, flags, title, format) == -1)
638 #else
639 if (config_glx(width, height, d_width, d_height, flags, title, format) == -1)
640 #endif
641 return -1;
643 setGlWindow(&gl_vinfo, &gl_context, vo_window);
645 glVersion = glGetString(GL_VERSION);
647 mp_msg(MSGT_VO, MSGL_V, "[gl2] OpenGL Driver Information:\n");
648 mp_msg(MSGT_VO, MSGL_V, "\tvendor: %s,\n\trenderer %s,\n\tversion %s\n",
649 glGetString(GL_VENDOR), glGetString(GL_RENDERER), glVersion);
651 if(glVersion[0]>'1' || (glVersion[0]=='1' && glVersion[2]>='2') )
652 isGL12 = GL_TRUE;
653 else
654 isGL12 = GL_FALSE;
656 if(isGL12) {
657 mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL >= 1.2 capable drivers, GOOD (16bpp and BGR is ok!)\n");
658 } else {
659 mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL < 1.2 drivers, BAD (16bpp and BGR may be damaged!)\n");
662 glFindFormat(format, &image_bpp, &gl_internal_format, &gl_bitmap_format, &gl_bitmap_type);
664 image_bytes=(image_bpp+7)/8;
666 draw_alpha_fnc=draw_alpha_null;
668 switch(image_bpp) {
669 case 15:
670 draw_alpha_fnc=draw_alpha_15; break;
671 case 16:
672 draw_alpha_fnc=draw_alpha_16; break;
673 case 24:
674 draw_alpha_fnc=draw_alpha_24; break;
675 case 32:
676 draw_alpha_fnc=draw_alpha_32; break;
679 if (initGl(vo_dwidth, vo_dheight) == -1)
680 return -1;
682 return 0;
685 #ifndef GL_WIN32
686 static int gl_handlekey(int key)
688 if(key=='a'||key=='A') {
689 gl_set_antialias(!gl_antialias);
690 return 0;
691 } else if(key=='b'||key=='B') {
692 gl_set_bilinear(-1);
693 return 0;
695 return 1;
697 #endif
699 static void check_events(void)
701 int e;
702 #ifndef GL_WIN32
703 XEvent Event;
704 char buf[100];
705 KeySym keySym;
706 int key;
707 static XComposeStatus stat;
709 while ( XPending( mDisplay ) ) {
710 XNextEvent( mDisplay,&Event );
711 if( Event.type == KeyPress ) {
712 XLookupString( &Event.xkey,buf,sizeof(buf),&keySym,&stat );
713 key = (keySym&0xff00) != 0 ? (keySym&0x00ff) + 256 : keySym;
714 if(gl_handlekey(key))
715 XPutBackEvent(mDisplay, &Event);
716 break;
717 } else {
718 XPutBackEvent(mDisplay, &Event);
719 break;
722 #endif
723 e=vo_check_events();
724 if(e&VO_EVENT_RESIZE) resize(&vo_dwidth, &vo_dheight);
725 if(e&VO_EVENT_EXPOSE && int_pause) flip_page();
728 static void draw_osd(void)
730 if (ImageData)
731 vo_draw_text(image_width,image_height,draw_alpha_fnc);
734 static void
735 flip_page(void)
737 drawTextureDisplay();
739 // glFlush();
740 if (use_glFinish)
741 glFinish();
742 swapGlBuffers();
744 if (vo_fs) // Avoid flickering borders in fullscreen mode
745 glClear (GL_COLOR_BUFFER_BIT);
748 static int draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
750 uint8_t *yptr = src[0], *uptr = src[1], *vptr = src[2];
751 int ystride = stride[0], ustride = stride[1], vstride = stride[2];
752 int rem_h = h;
753 struct TexSquare *texline = &texgrid[y / texture_height * texnumx];
754 int subtex_y = y % texture_width;
755 while (rem_h > 0) {
756 int rem_w = w;
757 struct TexSquare *tsq = &texline[x / texture_width];
758 int subtex_x = x % texture_height;
759 int subtex_h = rem_h;
760 if (subtex_y + subtex_h > texture_height)
761 subtex_h = texture_height - subtex_y;
762 while (rem_w > 0) {
763 int subtex_w = rem_w;
764 if (subtex_x + subtex_w > texture_width)
765 subtex_w = texture_width - subtex_x;
766 ActiveTexture(GL_TEXTURE0);
767 glBindTexture(GL_TEXTURE_2D, tsq->texobj);
768 glUploadTex(GL_TEXTURE_2D, gl_bitmap_format, gl_bitmap_type,
769 yptr, ystride, subtex_x, subtex_y,
770 subtex_w, subtex_h, 0);
771 ActiveTexture(GL_TEXTURE1);
772 glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[0]);
773 glUploadTex(GL_TEXTURE_2D, gl_bitmap_format, gl_bitmap_type,
774 uptr, ustride, subtex_x / 2, subtex_y / 2,
775 subtex_w / 2, subtex_h / 2, 0);
776 ActiveTexture(GL_TEXTURE2);
777 glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[1]);
778 glUploadTex(GL_TEXTURE_2D, gl_bitmap_format, gl_bitmap_type,
779 vptr, vstride, subtex_x / 2, subtex_y / 2,
780 subtex_w / 2, subtex_h / 2, 0);
781 subtex_x = 0;
782 yptr += subtex_w;
783 uptr += subtex_w / 2;
784 vptr += subtex_w / 2;
785 tsq++;
786 rem_w -= subtex_w;
788 subtex_y = 0;
789 yptr += subtex_h * ystride - w;
790 uptr += subtex_h / 2 * ustride - w / 2;
791 vptr += subtex_h / 2 * vstride - w / 2;
792 texline += texnumx;
793 rem_h -= subtex_h;
795 ActiveTexture(GL_TEXTURE0);
796 return 0;
799 static int
800 draw_frame(uint8_t *src[])
802 if (image_format == IMGFMT_YV12) {
803 mp_msg(MSGT_VO, MSGL_ERR, "[gl2] error: draw_frame called for YV12!\n");
804 return 0;
806 ImageData=(unsigned char *)src[0];
807 resetTexturePointers(ImageData);
808 texdirty = 1;
809 return 0;
812 static int
813 query_format(uint32_t format)
815 switch(format) {
816 case IMGFMT_YV12:
817 if (use_yuv)
818 return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD |
819 VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN | VFCAP_ACCEPT_STRIDE;
820 break;
821 #ifdef __APPLE__
822 case IMGFMT_RGB32:
823 #else
824 case IMGFMT_RGB24:
825 case IMGFMT_BGR24:
826 // case IMGFMT_RGB32:
827 // case IMGFMT_BGR32:
828 #endif
829 return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD;
831 return 0;
835 static void
836 uninit(void)
838 if ( !vo_config_count ) return;
839 releaseGlContext(&gl_vinfo, &gl_context);
840 if (texgrid) {
841 free(texgrid);
842 texgrid = NULL;
844 vo_uninit();
847 static const opt_t subopts[] = {
848 {"yuv", OPT_ARG_INT, &use_yuv, (opt_test_f)int_non_neg},
849 {"glfinish", OPT_ARG_BOOL, &use_glFinish, NULL},
850 {NULL}
853 static int preinit(const char *arg)
855 // set defaults
856 use_yuv = 0;
857 use_glFinish = 1;
858 if (subopt_parse(arg, subopts) != 0) {
859 mp_msg(MSGT_VO, MSGL_FATAL,
860 "\n-vo gl2 command line help:\n"
861 "Example: mplayer -vo gl2:noglfinish\n"
862 "\nOptions:\n"
863 " noglfinish\n"
864 " Do not call glFinish() before swapping buffers\n"
865 " yuv=<n>\n"
866 " 0: use software YUV to RGB conversion.\n"
867 " 1: use register combiners (nVidia only, for older cards).\n"
868 " 2: use fragment program.\n"
869 " 3: use fragment program with gamma correction.\n"
870 " 4: use fragment program with gamma correction via lookup.\n"
871 " 5: use ATI-specific method (for older cards).\n"
872 "\n" );
873 return -1;
875 if( !vo_init() ) return -1; // Can't open X11
876 return 0;
879 static int control(uint32_t request, void *data, ...)
881 switch (request) {
882 case VOCTRL_PAUSE:
883 case VOCTRL_RESUME:
884 int_pause = (request == VOCTRL_PAUSE);
885 return VO_TRUE;
886 case VOCTRL_QUERY_FORMAT:
887 return query_format(*((uint32_t*)data));
888 case VOCTRL_GUISUPPORT:
889 return VO_TRUE;
890 case VOCTRL_ONTOP:
891 vo_ontop();
892 return VO_TRUE;
893 case VOCTRL_FULLSCREEN:
894 vo_fullscreen();
895 if (setGlWindow(&gl_vinfo, &gl_context, vo_window) == SET_WINDOW_REINIT)
896 initGl(vo_dwidth, vo_dheight);
897 resize(&vo_dwidth, &vo_dheight);
898 return VO_TRUE;
899 case VOCTRL_BORDER:
900 vo_border();
901 return VO_TRUE;
902 case VOCTRL_GET_PANSCAN:
903 return VO_TRUE;
904 case VOCTRL_SET_PANSCAN:
905 resize (&vo_dwidth, &vo_dheight);
906 return VO_TRUE;
907 #ifndef GL_WIN32
908 case VOCTRL_SET_EQUALIZER:
910 va_list ap;
911 int value;
913 va_start(ap, data);
914 value = va_arg(ap, int);
915 va_end(ap);
916 return vo_x11_set_equalizer(data, value);
918 case VOCTRL_GET_EQUALIZER:
920 va_list ap;
921 int *value;
923 va_start(ap, data);
924 value = va_arg(ap, int *);
925 va_end(ap);
926 return vo_x11_get_equalizer(data, value);
928 #endif
929 case VOCTRL_UPDATE_SCREENINFO:
930 update_xinerama_info();
931 return VO_TRUE;
933 return VO_NOTIMPL;