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mpv/libvo/vo_gl.c

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#define TEXTUREFORMAT_ALWAYS GL_RGB8
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <errno.h>
#include "mp_msg.h"
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "font_load.h"
#include "sub.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
//#include <X11/keysym.h>
#include <GL/glx.h>
#include <errno.h>
#include <GL/gl.h>
#include "x11_common.h"
#include "aspect.h"
static vo_info_t info =
{
"X11 (OpenGL)",
"gl",
"Arpad Gereoffy <arpi@esp-team.scene.hu>",
""
};
LIBVO_EXTERN(gl)
static GLXContext wsGLXContext;
static int wsGLXAttrib[] = { GLX_RGBA,
GLX_RED_SIZE,1,
GLX_GREEN_SIZE,1,
GLX_BLUE_SIZE,1,
GLX_DOUBLEBUFFER,
None };
static int use_osd;
#define MAX_OSD_PARTS 20
static GLuint osdtex[MAX_OSD_PARTS];
#ifndef FAST_OSD
static GLuint osdatex[MAX_OSD_PARTS];
#endif
static GLuint osdDispList[MAX_OSD_PARTS];
static int osdtexCnt = 0;
static int use_aspect;
static uint32_t image_width;
static uint32_t image_height;
static uint32_t image_bytes;
static int many_fmts;
static GLenum gl_texfmt;
static GLenum gl_format;
static GLenum gl_type;
static int int_pause;
static uint32_t texture_width;
static uint32_t texture_height;
static unsigned int slice_height = 1;
static void resize(int x,int y){
mp_msg(MSGT_VO, MSGL_V, "[gl] Resize: %dx%d\n",x,y);
glViewport( 0, 0, x, y );
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if (vo_fs && use_aspect) {
int new_w, new_h;
GLdouble scale_x, scale_y;
aspect(&new_w, &new_h, A_ZOOM);
panscan_calc();
new_w += vo_panscan_x;
new_h += vo_panscan_y;
scale_x = (GLdouble) new_w / (GLdouble) x;
scale_y = (GLdouble) new_h / (GLdouble) y;
glScaled(scale_x, scale_y, 1);
}
glOrtho(0, image_width, image_height, 0, -1,1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
#ifdef HAVE_FREETYPE
// adjust font size to display size
force_load_font = 1;
#endif
vo_osd_changed(1);
}
static int find_gl_format (uint32_t format)
{
image_bytes = (IMGFMT_RGB_DEPTH(format)+7)/8;
gl_texfmt = 3;
switch (format) {
case IMGFMT_RGB24:
gl_format = GL_RGB;
gl_type = GL_UNSIGNED_BYTE;
break;
case IMGFMT_RGBA:
gl_texfmt = 4;
gl_format = GL_RGBA;
gl_type = GL_UNSIGNED_BYTE;
break;
case IMGFMT_Y800:
case IMGFMT_Y8:
gl_texfmt = 1;
image_bytes = 1;
gl_format = GL_LUMINANCE;
gl_type = GL_UNSIGNED_BYTE;
break;
#ifdef GL_VERSION_1_2
case IMGFMT_RGB8:
gl_format = GL_RGB;
gl_type = GL_UNSIGNED_BYTE_2_3_3_REV;
break;
case IMGFMT_RGB15:
gl_format = GL_RGBA;
gl_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
break;
case IMGFMT_RGB16:
gl_format = GL_RGB;
gl_type = GL_UNSIGNED_SHORT_5_6_5_REV;
break;
case IMGFMT_BGR8:
// special case as red and blue have a differen number of bits.
// GL_BGR and GL_UNSIGNED_BYTE_3_3_2 isn't supported at least
// by nVidia drivers, and in addition would give more bits to
// blue than to red, which isn't wanted
gl_format = GL_RGB;
gl_type = GL_UNSIGNED_BYTE_3_3_2;
break;
case IMGFMT_BGR15:
gl_format = GL_BGRA;
gl_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
break;
case IMGFMT_BGR16:
gl_format = GL_RGB;
gl_type = GL_UNSIGNED_SHORT_5_6_5;
break;
case IMGFMT_BGR24:
gl_format = GL_BGR;
gl_type = GL_UNSIGNED_BYTE;
break;
case IMGFMT_BGRA:
gl_texfmt = 4;
gl_format = GL_BGRA;
gl_type = GL_UNSIGNED_BYTE;
break;
#endif
default:
gl_texfmt = 4;
gl_format = GL_RGBA;
gl_type = GL_UNSIGNED_BYTE;
return 0;
}
#ifdef TEXTUREFORMAT_ALWAYS
gl_texfmt = TEXTUREFORMAT_ALWAYS;
#endif
return 1;
}
/* connect to server, create and map window,
* allocate colors and (shared) memory
*/
static uint32_t
config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
{
unsigned char *ImageData=NULL;
// int screen;
unsigned int fg, bg;
XSizeHints hint;
XVisualInfo *vinfo;
XEvent xev;
GLint gl_alignment;
// XGCValues xgcv;
image_height = height;
image_width = width;
find_gl_format (format);
vo_dwidth = d_width;
vo_dheight = d_height;
sub_bg_alpha = 255; // We need alpha = 255 for invisible part of the OSD
int_pause = 0;
panscan_init();
aspect_save_orig(width,height);
aspect_save_prescale(d_width,d_height);
aspect_save_screenres(vo_screenwidth,vo_screenheight);
aspect(&d_width,&d_height,A_NOZOOM);
#ifdef X11_FULLSCREEN
// if( flags&0x01 ){ // (-fs)
// aspect(&d_width,&d_height,A_ZOOM);
// }
#endif
hint.x = 0;
hint.y = 0;
hint.width = d_width;
hint.height = d_height;
hint.flags = PPosition | PSize;
/* Get some colors */
bg = WhitePixel(mDisplay, mScreen);
fg = BlackPixel(mDisplay, mScreen);
/* Make the window */
vinfo=glXChooseVisual( mDisplay,mScreen,wsGLXAttrib );
if (vinfo == NULL)
{
mp_msg(MSGT_VO, MSGL_ERR, "[gl] no GLX support present\n");
return -1;
}
if ( vo_window == None )
{
vo_window = vo_x11_create_smooth_window(mDisplay, mRootWin, vinfo->visual, hint.x, hint.y, hint.width, hint.height,
vinfo->depth, XCreateColormap(mDisplay, mRootWin, vinfo->visual, AllocNone));
vo_x11_classhint( mDisplay,vo_window,"gl" );
vo_hidecursor(mDisplay,vo_window);
// if ( flags&0x01 ) vo_x11_decoration( mDisplay,vo_window,0 );
XSelectInput(mDisplay, vo_window, StructureNotifyMask);
/* Tell other applications about this window */
XSetStandardProperties(mDisplay, vo_window, title, title, None, NULL, 0, &hint);
/* Map window. */
XMapWindow(mDisplay, vo_window);
if ( flags&1 ) vo_x11_fullscreen();
#ifdef HAVE_XINERAMA
vo_x11_xinerama_move(mDisplay,vo_window);
#endif
/* Wait for map. */
do
{
XNextEvent(mDisplay, &xev);
}
while (xev.type != MapNotify || xev.xmap.event != vo_window);
XSelectInput(mDisplay, vo_window, NoEventMask);
}
if ( vo_config_count ) glXDestroyContext( mDisplay,wsGLXContext );
wsGLXContext=glXCreateContext( mDisplay,vinfo,NULL,True );
glXMakeCurrent( mDisplay,vo_window,wsGLXContext );
XSync(mDisplay, False);
vo_x11_selectinput_witherr(mDisplay, vo_window, StructureNotifyMask | KeyPressMask | PointerMotionMask
| ButtonPressMask | ButtonReleaseMask | ExposureMask
);
texture_width=32;
while(texture_width<image_width || texture_width<image_height) texture_width*=2;
texture_height=texture_width;
ImageData=malloc(texture_width*texture_height*image_bytes);
memset(ImageData,0,texture_width*texture_height*image_bytes);
glDisable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE);
glDisable(GL_CULL_FACE);
glEnable(GL_TEXTURE_2D);
// set alignment as default is 4 which will break some files
if ((image_width * image_bytes) % 8 == 0)
gl_alignment=8;
else if ((image_width * image_bytes) % 4 == 0)
gl_alignment=4;
else if ((image_width * image_bytes) % 2 == 0)
gl_alignment=2;
else
gl_alignment=1;
glPixelStorei (GL_UNPACK_ALIGNMENT, gl_alignment);
mp_msg(MSGT_VO, MSGL_V, "[gl] Creating %dx%d texture...\n",texture_width,texture_height);
#if 1
// glBindTexture(GL_TEXTURE_2D, texture_id);
glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, gl_texfmt, texture_width, texture_height, 0,
gl_format, gl_type, ImageData);
#endif
free (ImageData);
resize(d_width,d_height);
glClearColor( 0.0f,0.0f,0.0f,0.0f );
glClear( GL_COLOR_BUFFER_BIT );
// printf("OpenGL setup OK!\n");
if (vo_ontop) vo_x11_setlayer(mDisplay, vo_window, vo_ontop);
return 0;
}
static void check_events(void)
{
int e=vo_x11_check_events(mDisplay);
if(e&VO_EVENT_RESIZE) resize(vo_dwidth,vo_dheight);
if(e&VO_EVENT_EXPOSE && int_pause) flip_page();
}
/**
* Creates the textures and the display list needed for displaying
* an OSD part.
* Callback function for vo_draw_text().
*/
static void create_osd_texture(int x0, int y0, int w, int h,
unsigned char *src, unsigned char *srca,
int stride)
{
int sx = 1, sy = 1;
GLfloat xcov, ycov;
char *clearTexture;
while (sx < w) sx *= 2;
while (sy < h) sy *= 2;
xcov = (GLfloat) w / (GLfloat) sx;
ycov = (GLfloat) h / (GLfloat) sy;
if (osdtexCnt >= MAX_OSD_PARTS) {
mp_msg(MSGT_VO, MSGL_ERR, "Too many OSD parts, contact the developers!\n");
return;
}
clearTexture = malloc(sx * sy);
memset(clearTexture, 0, sx * sy);
// create Textures for OSD part
glGenTextures(1, &osdtex[osdtexCnt]);
glBindTexture(GL_TEXTURE_2D, osdtex[osdtexCnt]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, sx, sy, 0,
GL_LUMINANCE, GL_UNSIGNED_BYTE, clearTexture);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glPixelStorei(GL_UNPACK_ROW_LENGTH, stride);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, GL_LUMINANCE,
GL_UNSIGNED_BYTE, src);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
#ifndef FAST_OSD
glGenTextures(1, &osdatex[osdtexCnt]);
glBindTexture(GL_TEXTURE_2D, osdatex[osdtexCnt]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, sx, sy, 0,
GL_LUMINANCE, GL_UNSIGNED_BYTE, clearTexture);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glPixelStorei(GL_UNPACK_ROW_LENGTH, stride);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, GL_ALPHA,
GL_UNSIGNED_BYTE, srca);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
#endif
glBindTexture(GL_TEXTURE_2D, 0);
free(clearTexture);
// Create a list for rendering this OSD part
osdDispList[osdtexCnt] = glGenLists(1);
glNewList(osdDispList[osdtexCnt], GL_COMPILE);
#ifndef FAST_OSD
// render alpha
glBlendFunc(GL_ZERO, GL_SRC_ALPHA);
glBindTexture(GL_TEXTURE_2D, osdatex[osdtexCnt]);
glBegin(GL_QUADS);
glTexCoord2f (0, 0);
glVertex2f (x0, y0);
glTexCoord2f (0, ycov);
glVertex2f (x0, y0 + h);
glTexCoord2f (xcov, ycov);
glVertex2f (x0 + w, y0 + h);
glTexCoord2f (xcov, 0);
glVertex2f (x0 + w, y0);
glEnd();
#endif
// render OSD
glBlendFunc (GL_ONE, GL_ONE);
glBindTexture(GL_TEXTURE_2D, osdtex[osdtexCnt]);
glBegin(GL_QUADS);
glTexCoord2f (0, 0);
glVertex2f (x0, y0);
glTexCoord2f (0, ycov);
glVertex2f (x0, y0 + h);
glTexCoord2f (xcov, ycov);
glVertex2f (x0 + w, y0 + h);
glTexCoord2f (xcov, 0);
glVertex2f (x0 + w, y0);
glEnd();
glEndList();
osdtexCnt++;
}
static void draw_osd(void)
{
int i;
if (!use_osd) return;
if (vo_osd_changed(0)) {
for (i = 0; i < osdtexCnt; i++) {
glDeleteTextures(1, &osdtex[i]);
#ifndef FAST_OSD
glDeleteTextures(1, &osdatex[i]);
#endif
glDeleteLists(osdDispList[i], 1);
}
osdtexCnt = 0;
// draw OSD with full resolution
vo_draw_text(vo_dwidth, vo_dheight, create_osd_texture);
}
}
static void
flip_page(void)
{
// glEnable(GL_TEXTURE_2D);
// glBindTexture(GL_TEXTURE_2D, texture_id);
glColor3f(1,1,1);
glBegin(GL_QUADS);
glTexCoord2f(0,0);glVertex2i(0,0);
glTexCoord2f(0,1);glVertex2i(0,texture_height);
glTexCoord2f(1,1);glVertex2i(texture_width,texture_height);
glTexCoord2f(1,0);glVertex2i(texture_width,0);
glEnd();
if (osdtexCnt > 0) {
// set special rendering parameters
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, vo_dwidth, vo_dheight, 0, -1, 1);
glEnable(GL_BLEND);
// draw OSD
glCallLists(osdtexCnt, GL_UNSIGNED_INT, osdDispList);
// set rendering parameters back to defaults
glDisable (GL_BLEND);
glPopMatrix();
glBindTexture(GL_TEXTURE_2D, 0);
}
// glFlush();
glFinish();
glXSwapBuffers( mDisplay,vo_window );
if (vo_fs && use_aspect)
glClear(GL_COLOR_BUFFER_BIT);
}
//static inline uint32_t draw_slice_x11(uint8_t *src[], uint32_t slice_num)
static uint32_t draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
{
return 0;
}
static uint32_t
draw_frame(uint8_t *src[])
{
unsigned int i;
uint8_t *ImageData=src[0];
if (slice_height == 0)
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, image_width, image_height,
gl_format, gl_type, ImageData);
else
for(i=0;i<image_height;i+=slice_height){
glTexSubImage2D( GL_TEXTURE_2D, // target
0, // level
0, // x offset
// image_height-1-i, // y offset
i, // y offset
image_width, // width
(i+slice_height<=image_height)?slice_height:image_height-i, // height
gl_format,
gl_type,
ImageData+i*image_bytes*image_width ); // *pixels
}
return 0;
}
static uint32_t
query_format(uint32_t format)
{
int caps = VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
if (use_osd)
caps |= VFCAP_OSD;
if ((format == IMGFMT_RGB24) || (format == IMGFMT_RGBA))
return caps;
if (many_fmts && find_gl_format(format))
return caps;
return 0;
}
static void
uninit(void)
{
if ( !vo_config_count ) return;
vo_x11_uninit();
}
static uint32_t preinit(const char *arg)
{
int parse_err = 0;
unsigned int parse_pos = 0;
many_fmts = 0;
use_osd = 1;
use_aspect = 1;
slice_height = 4;
if(arg)
{
while (arg[parse_pos] && !parse_err) {
if (strncmp (&arg[parse_pos], "manyfmts", 8) == 0) {
parse_pos += 8;
many_fmts = 1;
} else if (strncmp (&arg[parse_pos], "nomanyfmts", 10) == 0) {
parse_pos += 10;
many_fmts = 0;
} else if (strncmp (&arg[parse_pos], "osd", 3) == 0) {
parse_pos += 3;
use_osd = 1;
} else if (strncmp (&arg[parse_pos], "noosd", 5) == 0) {
parse_pos += 5;
use_osd = 0;
} else if (strncmp (&arg[parse_pos], "aspect", 6) == 0) {
parse_pos += 6;
use_aspect = 1;
} else if (strncmp (&arg[parse_pos], "noaspect", 8) == 0) {
parse_pos += 8;
use_aspect = 0;
} else if (strncmp (&arg[parse_pos], "slice-height=", 13) == 0) {
int val;
char *end;
parse_pos += 13;
val = strtol(&arg[parse_pos], &end, 0);
if (val < 0) parse_err = 1;
else {
slice_height = val;
parse_pos = end - arg;
}
}
if (arg[parse_pos] == ':') parse_pos++;
else if (arg[parse_pos]) parse_err = 1;
}
}
if (parse_err) {
unsigned int i;
mp_msg(MSGT_VO, MSGL_FATAL, "Could not parse arguments:\n%s\n", arg);
for (i = 0; i < parse_pos; i++)
mp_msg(MSGT_VO, MSGL_FATAL, " ");
mp_msg(MSGT_VO, MSGL_FATAL, "^\n");
mp_msg(MSGT_VO, MSGL_FATAL,
"\n-vo gl command line help:\n"
"Example: mplayer -vo gl:slice-height=4\n"
"\nOptions:\n"
" manyfmts\n"
" Enable extended color formats for OpenGL 1.2 and later\n"
" slice-height=<0-...>\n"
" Slice size for texture transfer, 0 for whole image\n"
" noosd\n"
" Do not use OpenGL OSD code\n"
" noaspect\n"
" Do not do aspect scaling\n"
"\n" );
return -1;
}
if (many_fmts)
mp_msg (MSGT_VO, MSGL_WARN, "[gl] using extended formats.\n"
"Make sure you have OpenGL >= 1.2 and used corresponding "
"headers for compiling!\n");
mp_msg (MSGT_VO, MSGL_INFO, "[gl] Using %d as slice height "
"(0 means image height).\n", slice_height);
if( !vo_init() ) return -1; // Can't open X11
return 0;
}
static uint32_t control(uint32_t request, void *data, ...)
{
switch (request) {
case VOCTRL_PAUSE: return (int_pause=1);
case VOCTRL_RESUME: return (int_pause=0);
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t*)data));
case VOCTRL_ONTOP:
vo_x11_ontop();
return VO_TRUE;
case VOCTRL_FULLSCREEN:
vo_x11_fullscreen();
return VO_TRUE;
case VOCTRL_GET_PANSCAN:
if (!use_aspect) return VO_NOTIMPL;
return VO_TRUE;
case VOCTRL_SET_PANSCAN:
if (!use_aspect) return VO_NOTIMPL;
resize (vo_dwidth, vo_dheight);
return VO_TRUE;
}
return VO_NOTIMPL;
}
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