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3bdcbba496
mpv/libvo/video_out.c
Uoti Urpala 82b8f89bae input: rework event reading and command queuing 
Rework much of the logic related to reading from event sources and
queuing commands. The two biggest architecture changes are:
- The code buffering keycodes in mp_fifo.c is gone. Instead key input
  is now immediately fed to input.c and interpreted as commands, and
  then the commands are buffered instead.
- mp_input_get_cmd() now always tries to read every available event
  from every event source and convert them to (buffered) commands.
  Before it would only process new events until one new command became
  available.

Some relevant behavior changes:
- Before commands could be lost when stream code called
  mp_input_check_interrupt() which read commands (to see if they were
  of types that triggered aborts during slow IO tasks) and then threw
  them away. This was especially an issue if cache was enabled and slow
  to read. Fixed - now it's possible to check whether there are queued
  commands which will abort playback of the current file without
  throwing other commands away.
- mp_input_check_interrupt() now prints a message if it returns
  true. This is especially useful because the failures caused by
  aborted stream reads can trigger error messages from other code that
  was doing the read; the new message makes it more obvious what the
  cause of the subsequent error messages is.
- It's now possible to again avoid making stdin non-blocking (which
  caused some issues) without reintroducing extra latency. The change
  will be done in a subsequent commit.
- Event sources that do not support select() should now have somewhat
  lower latency in certain situations as they will be checked both
  before and after select()/sleep in input reading; before the sleep
  always happened first even if such sources already had queued
  input. Before the key fifo was also handled in this manner (first
  key triggered select, but if multiple were read then rest could be
  delayed; however in most cases this didn't add latency in practice
  as after central code started doing command handling it queried for
  further commands with a max sleep time of 0).
- Key fifo limiting is more accurate now: it now counts actual
  commands intead of keycodes, and all queued keys are read
  immediately from input devices so they can be counted correctly.
- Since keypresses are now interpreted immediately, commands which
  change keybindings will no longer affect following keypresses that
  have already been read before the command is executed. This should
  not be an issue in practice with current keybinding behavior.
2011-07-17 07:36:09 +03:00

653 lines
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/*
* libvo common functions, variables used by many/all drivers.
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <stdbool.h>
#include <unistd.h>
//#include <sys/mman.h>
#include "config.h"
#include "options.h"
#include "talloc.h"
#include "video_out.h"
#include "aspect.h"
#include "geometry.h"
#include "old_vo_wrapper.h"
#include "input/input.h"
#include "mp_fifo.h"
#include "mp_msg.h"
#include "osdep/shmem.h"
#ifdef CONFIG_X11
#include "x11_common.h"
#endif
int xinerama_screen = -1;
int xinerama_x;
int xinerama_y;
int vo_nomouse_input = 0;
int vo_grabpointer = 1;
int vo_doublebuffering = 1;
int vo_vsync = 0;
int vo_fs = 0;
int vo_fsmode = 0;
float vo_panscan = 0.0f;
int vo_adapter_num=0;
int vo_refresh_rate=0;
int vo_keepaspect=1;
int vo_rootwin=0;
int vo_border=1;
int64_t WinID = -1;
int vo_pts=0; // for hw decoding
float vo_fps=0;
char *vo_subdevice = NULL;
int vo_directrendering=0;
int vo_colorkey = 0x0000ff00; // default colorkey is green
// (0xff000000 means that colorkey has been disabled)
//
// Externally visible list of all vo drivers
//
extern struct vo_driver video_out_mga;
extern struct vo_driver video_out_xmga;
extern struct vo_driver video_out_x11;
extern struct vo_driver video_out_xover;
extern struct vo_driver video_out_vdpau;
extern struct vo_driver video_out_xv;
extern struct vo_driver video_out_gl_nosw;
extern struct vo_driver video_out_gl;
extern struct vo_driver video_out_gl2;
extern struct vo_driver video_out_matrixview;
extern struct vo_driver video_out_dga;
extern struct vo_driver video_out_sdl;
extern struct vo_driver video_out_3dfx;
extern struct vo_driver video_out_tdfxfb;
extern struct vo_driver video_out_s3fb;
extern struct vo_driver video_out_wii;
extern struct vo_driver video_out_null;
extern struct vo_driver video_out_bl;
extern struct vo_driver video_out_fbdev;
extern struct vo_driver video_out_fbdev2;
extern struct vo_driver video_out_svga;
extern struct vo_driver video_out_png;
extern struct vo_driver video_out_ggi;
extern struct vo_driver video_out_aa;
extern struct vo_driver video_out_caca;
extern struct vo_driver video_out_mpegpes;
extern struct vo_driver video_out_yuv4mpeg;
extern struct vo_driver video_out_direct3d;
extern struct vo_driver video_out_directx;
extern struct vo_driver video_out_kva;
extern struct vo_driver video_out_dxr3;
extern struct vo_driver video_out_ivtv;
extern struct vo_driver video_out_v4l2;
extern struct vo_driver video_out_jpeg;
extern struct vo_driver video_out_gif89a;
extern struct vo_driver video_out_vesa;
extern struct vo_driver video_out_directfb;
extern struct vo_driver video_out_dfbmga;
extern struct vo_driver video_out_tdfx_vid;
extern struct vo_driver video_out_xvr100;
extern struct vo_driver video_out_tga;
extern struct vo_driver video_out_corevideo;
extern struct vo_driver video_out_quartz;
extern struct vo_driver video_out_pnm;
extern struct vo_driver video_out_md5sum;
const struct vo_driver *video_out_drivers[] =
{
#ifdef CONFIG_XVR100
&video_out_xvr100,
#endif
#ifdef CONFIG_TDFX_VID
&video_out_tdfx_vid,
#endif
#ifdef CONFIG_DIRECTX
&video_out_directx,
#endif
#ifdef CONFIG_DIRECT3D
&video_out_direct3d,
#endif
#ifdef CONFIG_KVA
&video_out_kva,
#endif
#ifdef CONFIG_COREVIDEO
&video_out_corevideo,
#endif
#ifdef CONFIG_QUARTZ
&video_out_quartz,
#endif
#ifdef CONFIG_XMGA
&video_out_xmga,
#endif
#ifdef CONFIG_MGA
&video_out_mga,
#endif
#ifdef CONFIG_TDFXFB
&video_out_tdfxfb,
#endif
#ifdef CONFIG_S3FB
&video_out_s3fb,
#endif
#ifdef CONFIG_WII
&video_out_wii,
#endif
#ifdef CONFIG_3DFX
&video_out_3dfx,
#endif
#if CONFIG_VDPAU
&video_out_vdpau,
#endif
#ifdef CONFIG_XV
&video_out_xv,
#endif
#ifdef CONFIG_X11
#ifdef CONFIG_GL
&video_out_gl_nosw,
#endif
&video_out_x11,
&video_out_xover,
#endif
#ifdef CONFIG_SDL
&video_out_sdl,
#endif
#ifdef CONFIG_GL
&video_out_gl,
&video_out_gl2,
#endif
#ifdef CONFIG_DGA
&video_out_dga,
#endif
#ifdef CONFIG_GGI
&video_out_ggi,
#endif
#ifdef CONFIG_FBDEV
&video_out_fbdev,
&video_out_fbdev2,
#endif
#ifdef CONFIG_SVGALIB
&video_out_svga,
#endif
#ifdef CONFIG_MATRIXVIEW
&video_out_matrixview,
#endif
#ifdef CONFIG_AA
&video_out_aa,
#endif
#ifdef CONFIG_CACA
&video_out_caca,
#endif
#ifdef CONFIG_DXR3
&video_out_dxr3,
#endif
#ifdef CONFIG_IVTV
&video_out_ivtv,
#endif
#ifdef CONFIG_V4L2_DECODER
&video_out_v4l2,
#endif
#ifdef CONFIG_BL
&video_out_bl,
#endif
#ifdef CONFIG_VESA
&video_out_vesa,
#endif
#ifdef CONFIG_DIRECTFB
&video_out_dfbmga,
#endif
&video_out_null,
// should not be auto-selected
#ifdef CONFIG_DIRECTFB
// vo directfb can call exit() if initialization fails
&video_out_directfb,
#endif
&video_out_mpegpes,
#ifdef CONFIG_YUV4MPEG
&video_out_yuv4mpeg,
#endif
#ifdef CONFIG_FFMPEG
&video_out_png,
#endif
#ifdef CONFIG_JPEG
&video_out_jpeg,
#endif
#ifdef CONFIG_GIF
&video_out_gif89a,
#endif
#ifdef CONFIG_TGA
&video_out_tga,
#endif
#ifdef CONFIG_PNM
&video_out_pnm,
#endif
#ifdef CONFIG_MD5SUM
&video_out_md5sum,
#endif
NULL
};
static int vo_preinit(struct vo *vo, const char *arg)
{
return vo->driver->preinit(vo, arg);
}
int vo_control(struct vo *vo, uint32_t request, void *data)
{
return vo->driver->control(vo, request, data);
}
// Return -1 if driver appears not to support a draw_image interface,
// 0 otherwise (whether the driver actually drew something or not).
int vo_draw_image(struct vo *vo, struct mp_image *mpi, double pts)
{
if (!vo->config_ok)
return 0;
if (vo->driver->buffer_frames) {
vo->driver->draw_image(vo, mpi, pts);
return 0;
}
vo->frame_loaded = true;
vo->next_pts = pts;
if (vo_control(vo, VOCTRL_DRAW_IMAGE, mpi) == VO_NOTIMPL)
return -1;
return 0;
}
int vo_get_buffered_frame(struct vo *vo, bool eof)
{
if (!vo->config_ok)
return -1;
if (vo->frame_loaded)
return 0;
if (!vo->driver->buffer_frames)
return -1;
vo->driver->get_buffered_frame(vo, eof);
return vo->frame_loaded ? 0 : -1;
}
void vo_skip_frame(struct vo *vo)
{
vo->frame_loaded = false;
}
int vo_draw_frame(struct vo *vo, uint8_t *src[])
{
assert(!vo->driver->is_new);
if (!vo->config_ok)
return 0;
return old_vo_draw_frame(vo, src);
}
int vo_draw_slice(struct vo *vo, uint8_t *src[], int stride[], int w, int h, int x, int y)
{
return vo->driver->draw_slice(vo, src, stride, w, h, x, y);
}
void vo_draw_osd(struct vo *vo, struct osd_state *osd)
{
if (!vo->config_ok)
return;
vo->driver->draw_osd(vo, osd);
}
void vo_flip_page(struct vo *vo, unsigned int pts_us, int duration)
{
if (!vo->config_ok)
return;
vo->frame_loaded = false;
vo->next_pts = MP_NOPTS_VALUE;
if (vo->driver->flip_page_timed)
vo->driver->flip_page_timed(vo, pts_us, duration);
else
vo->driver->flip_page(vo);
}
void vo_check_events(struct vo *vo)
{
if (!vo->config_ok) {
if (vo->registered_fd != -1)
mp_input_rm_key_fd(vo->input_ctx, vo->registered_fd);
vo->registered_fd = -1;
return;
}
vo->driver->check_events(vo);
}
void vo_seek_reset(struct vo *vo)
{
vo_control(vo, VOCTRL_RESET, NULL);
vo->frame_loaded = false;
}
void vo_destroy(struct vo *vo)
{
if (vo->registered_fd != -1)
mp_input_rm_key_fd(vo->input_ctx, vo->registered_fd);
vo->driver->uninit(vo);
talloc_free(vo);
}
void list_video_out(void)
{
int i = 0;
mp_tmsg(MSGT_CPLAYER, MSGL_INFO, "Available video output drivers:\n");
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_OUTPUTS\n");
while (video_out_drivers[i]) {
const vo_info_t *info = video_out_drivers[i++]->info;
mp_msg(MSGT_GLOBAL, MSGL_INFO,"\t%s\t%s\n", info->short_name, info->name);
}
mp_msg(MSGT_GLOBAL, MSGL_INFO,"\n");
}
struct vo *init_best_video_out(struct MPOpts *opts, struct vo_x11_state *x11,
struct mp_fifo *key_fifo,
struct input_ctx *input_ctx)
{
char **vo_list = opts->video_driver_list;
int i;
struct vo *vo = talloc_ptrtype(NULL, vo);
struct vo initial_values = {
.opts = opts,
.x11 = x11,
.key_fifo = key_fifo,
.input_ctx = input_ctx,
.event_fd = -1,
.registered_fd = -1,
};
// first try the preferred drivers, with their optional subdevice param:
if (vo_list && vo_list[0])
while (vo_list[0][0]) {
char *name = strdup(vo_list[0]);
vo_subdevice = strchr(name,':');
if (!strcmp(name, "pgm"))
mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "The pgm video output driver has been replaced by -vo pnm:pgmyuv.\n");
if (!strcmp(name, "md5"))
mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "The md5 video output driver has been replaced by -vo md5sum.\n");
if (vo_subdevice) {
vo_subdevice[0] = 0;
++vo_subdevice;
}
for (i = 0; video_out_drivers[i]; i++) {
const struct vo_driver *video_driver = video_out_drivers[i];
const vo_info_t *info = video_driver->info;
if (!strcmp(info->short_name, name)) {
// name matches, try it
*vo = initial_values;
vo->driver = video_driver;
if (!vo_preinit(vo, vo_subdevice)) {
free(name);
return vo; // success!
}
talloc_free_children(vo);
}
}
// continue...
free(name);
++vo_list;
if (!(vo_list[0]))
return NULL; // do NOT fallback to others
}
// now try the rest...
vo_subdevice = NULL;
for (i = 0; video_out_drivers[i]; i++) {
const struct vo_driver *video_driver = video_out_drivers[i];
*vo = initial_values;
vo->driver = video_driver;
if (!vo_preinit(vo, vo_subdevice))
return vo; // success!
talloc_free_children(vo);
}
free(vo);
return NULL;
}
static int event_fd_callback(void *ctx, int fd)
{
struct vo *vo = ctx;
vo_check_events(vo);
return MP_INPUT_NOTHING;
}
int vo_config(struct vo *vo, uint32_t width, uint32_t height,
uint32_t d_width, uint32_t d_height, uint32_t flags,
char *title, uint32_t format)
{
struct MPOpts *opts = vo->opts;
panscan_init(vo);
aspect_save_orig(vo, width, height);
aspect_save_prescale(vo, d_width, d_height);
if (vo_control(vo, VOCTRL_UPDATE_SCREENINFO, NULL) == VO_TRUE) {
aspect(vo, &d_width, &d_height, A_NOZOOM);
vo->dx = (int)(opts->vo_screenwidth - d_width) / 2;
vo->dy = (int)(opts->vo_screenheight - d_height) / 2;
geometry(&vo->dx, &vo->dy, &d_width, &d_height,
opts->vo_screenwidth, opts->vo_screenheight);
geometry_xy_changed |= xinerama_screen >= 0;
vo->dx += xinerama_x;
vo->dy += xinerama_y;
vo->dwidth = d_width;
vo->dheight = d_height;
}
int ret = vo->driver->config(vo, width, height, d_width, d_height, flags,
title, format);
vo->config_ok = (ret == 0);
vo->config_count += vo->config_ok;
if (vo->registered_fd == -1 && vo->event_fd != -1 && vo->config_ok) {
mp_input_add_key_fd(vo->input_ctx, vo->event_fd, 1, event_fd_callback,
NULL, vo);
vo->registered_fd = vo->event_fd;
}
return ret;
}
/**
* \brief lookup an integer in a table, table must have 0 as the last key
* \param key key to search for
* \result translation corresponding to key or "to" value of last mapping
* if not found.
*/
int lookup_keymap_table(const struct mp_keymap *map, int key) {
while (map->from && map->from != key) map++;
return map->to;
}
/**
* \brief helper function for the kind of panscan-scaling that needs a source
* and destination rectangle like Direct3D and VDPAU
*/
static void src_dst_split_scaling(int src_size, int dst_size, int scaled_src_size,
int *src_start, int *src_end, int *dst_start, int *dst_end) {
if (scaled_src_size > dst_size) {
int border = src_size * (scaled_src_size - dst_size) / scaled_src_size;
// round to a multiple of 2, this is at least needed for vo_direct3d and ATI cards
border = (border / 2 + 1) & ~1;
*src_start = border;
*src_end = src_size - border;
*dst_start = 0;
*dst_end = dst_size;
} else {
*src_start = 0;
*src_end = src_size;
*dst_start = (dst_size - scaled_src_size) / 2;
*dst_end = *dst_start + scaled_src_size;
}
}
/**
* Calculate the appropriate source and destination rectangle to
* get a correctly scaled picture, including pan-scan.
* Can be extended to take future cropping support into account.
*
* \param crop specifies the cropping border size in the left, right, top and bottom members, may be NULL
* \param borders the border values as e.g. EOSD (ASS) and properly placed DVD highlight support requires,
* may be NULL and only left and top are currently valid.
*/
void calc_src_dst_rects(struct vo *vo, int src_width, int src_height,
struct vo_rect *src, struct vo_rect *dst,
struct vo_rect *borders, const struct vo_rect *crop)
{
static const struct vo_rect no_crop = {0, 0, 0, 0, 0, 0};
int scaled_width = 0;
int scaled_height = 0;
if (!crop) crop = &no_crop;
src_width -= crop->left + crop->right;
src_height -= crop->top + crop->bottom;
if (src_width < 2) src_width = 2;
if (src_height < 2) src_height = 2;
dst->left = 0; dst->right = vo->dwidth;
dst->top = 0; dst->bottom = vo->dheight;
src->left = 0; src->right = src_width;
src->top = 0; src->bottom = src_height;
if (borders) {
borders->left = 0; borders->top = 0;
}
if (aspect_scaling()) {
aspect(vo, &scaled_width, &scaled_height, A_WINZOOM);
panscan_calc_windowed(vo);
scaled_width += vo->panscan_x;
scaled_height += vo->panscan_y;
if (borders) {
borders->left = (vo->dwidth - scaled_width ) / 2;
borders->top = (vo->dheight - scaled_height) / 2;
}
src_dst_split_scaling(src_width, vo->dwidth, scaled_width,
&src->left, &src->right, &dst->left, &dst->right);
src_dst_split_scaling(src_height, vo->dheight, scaled_height,
&src->top, &src->bottom, &dst->top, &dst->bottom);
}
src->left += crop->left; src->right += crop->left;
src->top += crop->top; src->bottom += crop->top;
src->width = src->right - src->left;
src->height = src->bottom - src->top;
dst->width = dst->right - dst->left;
dst->height = dst->bottom - dst->top;
}
/**
* Generates a mouse movement message if those are enable and sends it
* to the "main" MPlayer.
*
* \param posx new x position of mouse
* \param posy new y position of mouse
*/
void vo_mouse_movement(struct vo *vo, int posx, int posy)
{
char cmd_str[40];
if (!enable_mouse_movements)
return;
snprintf(cmd_str, sizeof(cmd_str), "set_mouse_pos %i %i", posx, posy);
mp_input_queue_cmd(vo->input_ctx, mp_input_parse_cmd(cmd_str));
}
#if defined(CONFIG_FBDEV) || defined(CONFIG_VESA)
/* Borrowed from vo_fbdev.c
Monitor ranges related functions*/
char *monitor_hfreq_str = NULL;
char *monitor_vfreq_str = NULL;
char *monitor_dotclock_str = NULL;
float range_max(range_t *r)
{
float max = 0;
for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
if (max < r->max) max = r->max;
return max;
}
int in_range(range_t *r, float f)
{
for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
if (f >= r->min && f <= r->max)
return 1;
return 0;
}
range_t *str2range(char *s)
{
float tmp_min, tmp_max;
char *endptr = s; // to start the loop
range_t *r = NULL;
int i;
if (!s)
return NULL;
for (i = 0; *endptr; i++) {
if (*s == ',')
goto out_err;
if (!(r = realloc(r, sizeof(*r) * (i + 2)))) {
mp_msg(MSGT_GLOBAL, MSGL_WARN,"can't realloc 'r'\n");
return NULL;
}
tmp_min = strtod(s, &endptr);
if (*endptr == 'k' || *endptr == 'K') {
tmp_min *= 1000.0;
endptr++;
} else if (*endptr == 'm' || *endptr == 'M') {
tmp_min *= 1000000.0;
endptr++;
}
if (*endptr == '-') {
tmp_max = strtod(endptr + 1, &endptr);
if (*endptr == 'k' || *endptr == 'K') {
tmp_max *= 1000.0;
endptr++;
} else if (*endptr == 'm' || *endptr == 'M') {
tmp_max *= 1000000.0;
endptr++;
}
if (*endptr != ',' && *endptr)
goto out_err;
} else if (*endptr == ',' || !*endptr) {
tmp_max = tmp_min;
} else
goto out_err;
r[i].min = tmp_min;
r[i].max = tmp_max;
if (r[i].min < 0 || r[i].max < 0)
goto out_err;
s = endptr + 1;
}
r[i].min = r[i].max = -1;
return r;
out_err:
free(r);
return NULL;
}
/* Borrowed from vo_fbdev.c END */
#endif
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