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mpv/libvo/vo_gl.c

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#define TEXTUREFORMAT_32BPP
#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 <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)
/* local data */
static unsigned char *ImageData=NULL;
static GLXContext wsGLXContext;
static int wsGLXAttrib[] = { GLX_RGBA,
GLX_RED_SIZE,1,
GLX_GREEN_SIZE,1,
GLX_BLUE_SIZE,1,
GLX_DOUBLEBUFFER,
None };
static uint32_t image_width;
static uint32_t image_height;
static uint32_t image_bytes;
static int many_fmts;
static GLenum gl_format;
static GLenum gl_type;
static int int_pause;
static uint32_t texture_width;
static uint32_t texture_height;
static 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();
glOrtho(0, image_width, image_height, 0, -1,1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
static int find_gl_format (uint32_t format)
{
switch (format) {
case IMGFMT_RGB24:
gl_format = GL_RGB;
gl_type = GL_UNSIGNED_BYTE;
break;
case IMGFMT_RGB32:
gl_format = GL_RGBA;
gl_type = GL_UNSIGNED_BYTE;
break;
case IMGFMT_Y800:
case IMGFMT_Y8:
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_3_3_2;
break;
case IMGFMT_RGB15:
gl_format = GL_RGBA;
gl_type = GL_UNSIGNED_SHORT_5_5_5_1;
break;
case IMGFMT_RGB16:
gl_format = GL_RGB;
gl_type = GL_UNSIGNED_SHORT_5_6_5;
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_2_3_3_REV;
break;
case IMGFMT_BGR15:
gl_format = GL_BGRA;
gl_type = GL_UNSIGNED_SHORT_5_5_5_1;
break;
case IMGFMT_BGR16:
gl_format = GL_RGB;
gl_type = GL_UNSIGNED_SHORT_5_6_5_REV;
break;
case IMGFMT_BGR24:
gl_format = GL_BGR;
gl_type = GL_UNSIGNED_BYTE;
break;
case IMGFMT_BGR32:
gl_format = GL_BGRA;
gl_type = GL_UNSIGNED_BYTE;
break;
#endif
default:
gl_format = GL_RGBA;
gl_type = GL_UNSIGNED_BYTE;
return 0;
}
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)
{
// int screen;
unsigned int fg, bg;
XSizeHints hint;
XVisualInfo *vinfo;
XEvent xev;
// XGCValues xgcv;
image_height = height;
image_width = width;
find_gl_format (format);
vo_dwidth = d_width;
vo_dheight = d_height;
int_pause = 0;
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 );
XFlush(mDisplay);
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;
image_bytes=(IMGFMT_RGB_DEPTH(format)+7)/8;
if ( ImageData ) free( ImageData );
ImageData=malloc(texture_width*texture_height*image_bytes);
memset(ImageData,128,texture_width*texture_height*image_bytes);
glDisable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE);
glDisable(GL_CULL_FACE);
glEnable(GL_TEXTURE_2D);
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);
/* Old OpenGL 1.0 used the third parameter (known as internalFormat) as an
integer, which indicated the bytes per pixel (bpp). Later in OpenGL 1.1
they switched to constants, like GL_RGB8. GL_RGB8 means 8 bits for each
channel (R,G,B), so it's equal to RGB24. It should be safe to pass the
image_bytes to internalFormat with newer OpenGL versions.
Anyway, I'm leaving this so as it was, it doesn't hurt, as OpenGL 1.1 is
about 10 years old too. -- alex
*/
#ifdef TEXTUREFORMAT_32BPP
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, texture_width, texture_height, 0,
#else
glTexImage2D(GL_TEXTURE_2D, 0, image_bytes, texture_width, texture_height, 0,
#endif
(image_bytes==4)?GL_RGBA:GL_BGR, GL_UNSIGNED_BYTE, ImageData);
#endif
resize(d_width,d_height);
glClearColor( 1.0f,0.0f,1.0f,0.0f );
glClear( GL_COLOR_BUFFER_BIT );
// printf("OpenGL setup OK!\n");
saver_off(mDisplay); // turning off screen saver
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();
}
static void draw_osd(void)
{
}
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();
// glFlush();
glFinish();
glXSwapBuffers( mDisplay,vo_window );
}
//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[])
{
int i;
uint8_t *ImageData=src[0];
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)
{
if ((format == IMGFMT_RGB24) || (format == IMGFMT_RGB32))
return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
if (many_fmts && find_gl_format(format))
return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
return 0;
}
static void
uninit(void)
{
if ( !vo_config_count ) return;
saver_on(mDisplay); // screen saver back on
vo_x11_uninit();
}
static uint32_t preinit(const char *arg)
{
many_fmts = 0;
slice_height = 4;
if(arg)
{
if (strncmp (arg, "manyfmts", 8) == 0) {
mp_msg (MSGT_VO, MSGL_WARN, "[gl] make sure you have OpenGL >= 1.2 and used corresponding headers for compiling!");
many_fmts = 1;
arg = &arg[8];
}
if (arg[0] != 0) {
slice_height = atoi(arg);
if (slice_height <= 0)
slice_height = 65536;
}
}
mp_msg(MSGT_VO, MSGL_INFO, "[vo_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;
}
return VO_NOTIMPL;
}
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