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mpv/libvo/vo_sdl.c

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/*
* video_out_sdl.c
*
* Copyright (C) Ryan C. Gordon <icculus@lokigames.com> - April 22, 2000.
*
* A mpeg2dec display driver that does output through the
* Simple DirectMedia Layer (SDL) library. This effectively gives us all
* sorts of output options: X11, SVGAlib, fbcon, AAlib, GGI. Win32, MacOS
* and BeOS support, too. Yay. SDL info, source, and binaries can be found
* at http://slouken.devolution.com/SDL/
*
* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
*
* mpeg2dec 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, or (at your option)
* any later version.
*
* mpeg2dec 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation,
*
* Changes:
* Dominik Schnitzer <dominik@schnitzer.at> - November 08, 2000.
* - Added resizing support, fullscreen: changed the sdlmodes selection
* routine.
* - SDL bugfixes: removed the atexit(SLD_Quit), SDL_Quit now resides in
* the plugin_exit routine.
* - Commented the source :)
* - Shortcuts: for switching between Fullscreen/Windowed mode and for
* cycling between the different Fullscreen modes.
* - Small bugfixes: proper width/height of movie
* Dominik Schnitzer <dominik@schnitzer.at> - November 11, 2000.
* - Cleanup code, more comments
* - Better error handling
* Bruno Barreyra <barreyra@ufl.edu> - December 10, 2000.
* - Eliminated memcpy's for entire frames
* Felix Buenemann <Felix.Buenemann@ePost.de> - March 11, 2001
* - Added aspect-ratio awareness for fullscreen
* Felix Buenemann <Felix.Buenemann@gmx.de> - March 11, 2001
* - Fixed aspect-ratio awareness, did only vertical scaling (black bars above
* and below), now also does horizontal scaling (black bars left and right),
* so you get the biggest possible picture with correct aspect-ratio.
* Felix Buenemann <Atmosfear@users.sourceforge.net> - March 12, 2001
* - Minor bugfix to aspect-ratio vor non-4:3-resolutions (like 1280x1024)
* - Bugfix to check_events() to reveal mouse cursor after 'q'-quit in
* fullscreen-mode
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
LIBVO_EXTERN(sdl)
//#include "log.h"
//#define LOG if(0)printf
static vo_info_t vo_info =
{
"SDL YUV overlay (SDL v1.1.7+ only!)",
"sdl",
"Ryan C. Gordon <icculus@lokigames.com>",
""
};
#include <SDL/SDL.h>
/** Private SDL Data structure **/
static struct sdl_priv_s {
/* SDL YUV surface & overlay */
SDL_Surface *surface;
SDL_Overlay *overlay;
// SDL_Overlay *current_frame;
/* available fullscreen modes */
SDL_Rect **fullmodes;
/* surface attributes for fullscreen and windowed mode */
Uint32 sdlflags, sdlfullflags;
/* save the windowed output extents */
SDL_Rect windowsize;
/* Bits per Pixel */
Uint8 bpp;
/* current fullscreen mode, 0 = highest available fullscreen mode */
int fullmode;
/* YUV ints */
int framePlaneY, framePlaneUV;
int stridePlaneY, stridePlaneUV;
int width,height;
int format;
} sdl_priv;
/** OMS Plugin functions **/
/**
* Take a null-terminated array of pointers, and find the last element.
*
* params : array == array of which we want to find the last element.
* returns : index of last NON-NULL element.
**/
static inline int findArrayEnd (SDL_Rect **array)
{
int i = 0;
while ( array[i++] ); /* keep loopin' ... */
/* return the index of the last array element */
return i - 1;
}
/**
* Open and prepare SDL output.
*
* params : *plugin ==
* *name ==
* returns : 0 on success, -1 on failure
**/
static int sdl_open (void *plugin, void *name)
{
struct sdl_priv_s *priv = &sdl_priv;
const SDL_VideoInfo *vidInfo = NULL;
static int opened = 0;
if (opened)
return 0;
opened = 1;
// LOG (LOG_DEBUG, "SDL video out: Opened Plugin");
/* default to no fullscreen mode, we'll set this as soon we have the avail. modes */
priv->fullmode = -2;
/* other default values */
priv->sdlflags = SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT;
priv->sdlfullflags = SDL_HWSURFACE|SDL_FULLSCREEN|SDL_DOUBLEBUF|SDL_ASYNCBLIT;
priv->surface = NULL;
priv->overlay = NULL;
priv->fullmodes = NULL;
/* initialize the SDL Video system */
if (SDL_Init (SDL_INIT_VIDEO)) {
// LOG (LOG_ERROR, "SDL video out: Initializing of SDL failed (SDL_Init). Please use the latest version of SDL.");
return -1;
}
/* No Keyrepeats! */
SDL_EnableKeyRepeat(0,0);
/* get information about the graphics adapter */
vidInfo = SDL_GetVideoInfo ();
/* collect all fullscreen & hardware modes available */
if (!(priv->fullmodes = SDL_ListModes (vidInfo->vfmt, priv->sdlfullflags))) {
/* non hardware accelerated fullscreen modes */
priv->sdlfullflags &= ~SDL_HWSURFACE;
priv->fullmodes = SDL_ListModes (vidInfo->vfmt, priv->sdlfullflags);
}
/* test for normal resizeable & windowed hardware accellerated surfaces */
if (!SDL_ListModes (vidInfo->vfmt, priv->sdlflags)) {
/* test for NON hardware accelerated resizeable surfaces - poor you.
* That's all we have. If this fails there's nothing left.
* Theoretically there could be Fullscreenmodes left - we ignore this for now.
*/
priv->sdlflags &= ~SDL_HWSURFACE;
if ((!SDL_ListModes (vidInfo->vfmt, priv->sdlflags)) && (!priv->fullmodes)) {
// LOG (LOG_ERROR, "SDL video out: Couldn't get any acceptable SDL Mode for output. (SDL_ListModes failed)");
return -1;
}
}
/* YUV overlays need at least 16-bit color depth, but the
* display might less. The SDL AAlib target says it can only do
* 8-bits, for example. So, if the display is less than 16-bits,
* we'll force the BPP to 16, and pray that SDL can emulate for us.
*/
priv->bpp = vidInfo->vfmt->BitsPerPixel;
if (priv->bpp < 16) {
/*
LOG (LOG_WARNING, "SDL video out: Your SDL display target wants to be at a color depth of (%d), but we need it to be at\
least 16 bits, so we need to emulate 16-bit color. This is going to slow things down; you might want to\
increase your display's color depth, if possible", priv->bpp);
*/
priv->bpp = 16;
}
/* We dont want those in out event queue */
SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
SDL_EventState(SDL_KEYUP, SDL_IGNORE);
SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
SDL_EventState(SDL_MOUSEBUTTONDOWN, SDL_IGNORE);
SDL_EventState(SDL_MOUSEBUTTONUP, SDL_IGNORE);
SDL_EventState(SDL_QUIT, SDL_IGNORE);
SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
/* Success! */
return 0;
}
/**
* Close SDL, Cleanups, Free Memory
*
* params : *plugin
* returns : non-zero on success, zero on error.
**/
static int sdl_close (void)
{
struct sdl_priv_s *priv = &sdl_priv;
// LOG (LOG_DEBUG, "SDL video out: Closed Plugin");
// LOG (LOG_INFO, "SDL video out: Closed Plugin");
/* Cleanup YUV Overlay structure */
if (priv->overlay)
SDL_FreeYUVOverlay(priv->overlay);
/* Free our blitting surface */
if (priv->surface)
SDL_FreeSurface(priv->surface);
/* TODO: cleanup the full_modes array */
/* Cleanup SDL */
SDL_Quit();
return 0;
}
/**
* Sets the specified fullscreen mode.
*
* params : mode == index of the desired fullscreen mode
* returns : doesn't return
**/
static void set_fullmode (int mode)
{
struct sdl_priv_s *priv = &sdl_priv;
SDL_Surface *newsurface = NULL;
int haspect, waspect = 0;
/* if we haven't set a fullmode yet, default to the lowest res fullmode first */
if (mode < 0)
mode = priv->fullmode = findArrayEnd(priv->fullmodes) - 1;
/* Calculate proper aspect ratio for fullscreen
* Height smaller than expected: add horizontal black bars (haspect)*/
haspect = (priv->width * (float) ((float) priv->fullmodes[mode]->h / (float) priv->fullmodes[mode]->w) - priv->height) * (float) ((float) priv->fullmodes[mode]->w / (float) priv->width);
/* Height bigger than expected: add vertical black bars (waspect)*/
if (haspect < 0) {
haspect = 0; /* set haspect to zero because image will be scaled horizontal instead of vertical */
waspect = priv->fullmodes[mode]->w - ((float) ((float) priv->fullmodes[mode]->h / (float) priv->height) * (float) priv->width);
}
// printf ("W-Aspect: %i H-Aspect: %i\n", waspect, haspect);
/* change to given fullscreen mode and hide the mouse cursor */
newsurface = SDL_SetVideoMode(priv->fullmodes[mode]->w - waspect, priv->fullmodes[mode]->h - haspect, priv->bpp, priv->sdlfullflags);
/* if we were successfull hide the mouse cursor and save the mode */
if (newsurface) {
priv->surface = newsurface;
SDL_ShowCursor(0);
}
}
/**
* Initialize an SDL surface and an SDL YUV overlay.
*
* params : width == width of video we'll be displaying.
* height == height of video we'll be displaying.
* fullscreen == want to be fullscreen?
* title == Title for window titlebar.
* returns : non-zero on success, zero on error.
**/
static uint32_t
init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format)
//static int sdl_setup (int width, int height)
{
struct sdl_priv_s *priv = &sdl_priv;
unsigned int sdl_format, aspectheight;
switch(format){
case IMGFMT_YV12: sdl_format=SDL_YV12_OVERLAY;break;
case IMGFMT_YUY2: sdl_format=SDL_YUY2_OVERLAY;break;
default:
printf("SDL: Unsupported image format (0x%X)\n",format);
return -1;
}
sdl_open (NULL, NULL);
/* Save the original Image size */
priv->width = width;
priv->height = height;
priv->format = format;
if(fullscreen){
priv->windowsize.w = width;
priv->windowsize.h = height;
priv->surface=NULL;
set_fullmode(priv->fullmode);
} else {
priv->windowsize.w = d_width;
priv->windowsize.h = d_height;
priv->surface = SDL_SetVideoMode (d_width, d_height, priv->bpp, priv->sdlflags);
}
if(!priv->surface) return -1; // cannot SetVideoMode
/* Initialize and create the YUV Overlay used for video out */
if (!(priv->overlay = SDL_CreateYUVOverlay (width, height, sdl_format, priv->surface))) {
printf ("SDL video out: Couldn't create an SDL-based YUV overlay\n");
return -1;
}
priv->framePlaneY = width * height;
priv->framePlaneUV = (width * height) >> 2;
priv->stridePlaneY = width;
priv->stridePlaneUV = width/2;
return 0;
}
/**
* Draw a frame to the SDL YUV overlay.
*
* params : *src[] == the Y, U, and V planes that make up the frame.
* returns : non-zero on success, zero on error.
**/
//static int sdl_draw_frame (frame_t *frame)
static uint32_t draw_frame(uint8_t *src[])
{
struct sdl_priv_s *priv = &sdl_priv;
uint8_t *dst;
// priv->current_frame = (SDL_Overlay*) frame->private;
// SDL_UnlockYUVOverlay (priv->current_frame);
if (SDL_LockYUVOverlay (priv->overlay)) {
// LOG (LOG_ERROR, "SDL video out: Couldn't lock SDL-based YUV overlay");
return -1;
}
switch(priv->format){
case IMGFMT_YV12:
dst = (uint8_t *) *(priv->overlay->pixels);
memcpy (dst, src[0], priv->framePlaneY);
dst += priv->framePlaneY;
memcpy (dst, src[2], priv->framePlaneUV);
dst += priv->framePlaneUV;
memcpy (dst, src[1], priv->framePlaneUV);
break;
case IMGFMT_YUY2:
dst = (uint8_t *) *(priv->overlay->pixels);
memcpy (dst, src[0], priv->width*priv->height*2);
break;
}
SDL_UnlockYUVOverlay (priv->overlay);
return 0;
}
/**
* Draw a slice (16 rows of image) to the SDL YUV overlay.
*
* params : *src[] == the Y, U, and V planes that make up the slice.
* returns : non-zero on error, zero on success.
**/
//static uint32_t draw_slice(uint8_t *src[], uint32_t slice_num)
static uint32_t draw_slice(uint8_t *image[], int stride[], int w,int h,int x,int y)
{
struct sdl_priv_s *priv = &sdl_priv;
uint8_t *dst;
uint8_t *src;
int i;
//priv->current_frame = priv->overlay;
if (SDL_LockYUVOverlay (priv->overlay)) {
// LOG (LOG_ERROR, "SDL video out: Couldn't lock SDL-based YUV overlay");
return -1;
}
dst = (uint8_t *) *(priv->overlay->pixels)
+ (priv->stridePlaneY * y + x);
src = image[0];
for(i=0;i<h;i++){
memcpy(dst,src,w);
src+=stride[0];
dst+=priv->stridePlaneY;
}
x/=2;y/=2;w/=2;h/=2;
dst = (uint8_t *) *(priv->overlay->pixels) + priv->framePlaneY
+ (priv->stridePlaneUV * y + x);
src = image[2];
for(i=0;i<h;i++){
memcpy(dst,src,w);
src+=stride[2];
dst+=priv->stridePlaneUV;
}
dst = (uint8_t *) *(priv->overlay->pixels) + priv->framePlaneY
+ priv->framePlaneUV + (priv->stridePlaneUV * y + x);
src = image[1];
for(i=0;i<h;i++){
memcpy(dst,src,w);
src+=stride[1];
dst+=priv->stridePlaneUV;
}
#if 0
dst = (uint8_t *) *(priv->overlay->pixels) + (priv->slicePlaneY * slice_num);
memcpy (dst, src[0], priv->slicePlaneY);
dst = (uint8_t *) *(priv->overlay->pixels) + priv->framePlaneY + (priv->slicePlaneUV * slice_num);
memcpy (dst, src[2], priv->slicePlaneUV);
dst += priv->framePlaneUV;
memcpy (dst, src[1], priv->slicePlaneUV);
#endif
SDL_UnlockYUVOverlay (priv->overlay);
return 0;
}
/**
* Checks for SDL keypress and window resize events
*
* params : none
* returns : doesn't return
**/
#include "../linux/keycodes.h"
extern void mplayer_put_key(int code);
static void check_events (void)
{
struct sdl_priv_s *priv = &sdl_priv;
SDL_Event event;
SDLKey keypressed;
/* Poll the waiting SDL Events */
while ( SDL_PollEvent(&event) ) {
switch (event.type) {
/* capture window resize events */
case SDL_VIDEORESIZE:
priv->surface = SDL_SetVideoMode(event.resize.w, event.resize.h, priv->bpp, priv->sdlflags);
/* save video extents, to restore them after going fullscreen */
//if(!(priv->surface->flags & SDL_FULLSCREEN)) {
priv->windowsize.w = priv->surface->w;
priv->windowsize.h = priv->surface->h;
//}
// LOG (LOG_DEBUG, "SDL video out: Window resize");
break;
/* graphics mode selection shortcuts */
case SDL_KEYDOWN:
keypressed = event.key.keysym.sym;
/* plus key pressed. plus cycles through available fullscreenmodes, if we have some */
if ( ((keypressed == SDLK_PLUS) || (keypressed == SDLK_KP_PLUS)) && (priv->fullmodes) ) {
/* select next fullscreen mode */
priv->fullmode++;
if (priv->fullmode > (findArrayEnd(priv->fullmodes) - 1)) priv->fullmode = 0;
set_fullmode(priv->fullmode);
// LOG (LOG_DEBUG, "SDL video out: Set next available fullscreen mode.");
}
/* return or escape key pressed toggles/exits fullscreenmode */
else if ( (keypressed == SDLK_RETURN) || (keypressed == SDLK_ESCAPE) ) {
if (priv->surface->flags & SDL_FULLSCREEN) {
priv->surface = SDL_SetVideoMode(priv->windowsize.w, priv->windowsize.h, priv->bpp, priv->sdlflags);
SDL_ShowCursor(1);
// LOG (LOG_DEBUG, "SDL video out: Windowed mode");
}
else if (priv->fullmodes){
set_fullmode(priv->fullmode);
// LOG (LOG_DEBUG, "SDL video out: Set fullscreen mode.");
}
}
else switch(keypressed){
// case SDLK_q: if(!(priv->surface->flags & SDL_FULLSCREEN))mplayer_put_key('q');break;
case SDLK_q: SDL_ShowCursor(1); mplayer_put_key('q');break; //F.B.: added ShowCursor
// case SDLK_p: mplayer_put_key('p');break;
// case SDLK_SPACE: mplayer_put_key(' ');break;
case SDLK_UP: mplayer_put_key(KEY_UP);break;
case SDLK_DOWN: mplayer_put_key(KEY_DOWN);break;
case SDLK_LEFT: mplayer_put_key(KEY_LEFT);break;
case SDLK_RIGHT: mplayer_put_key(KEY_RIGHT);break;
case SDLK_PLUS:
case SDLK_KP_PLUS: mplayer_put_key('+');break;
case SDLK_MINUS:
case SDLK_KP_MINUS: mplayer_put_key('-');break;
}
break;
}
}
}
/**
* Display the surface we have written our data to and check for events.
*
* params : mode == index of the desired fullscreen mode
* returns : doesn't return
**/
static void flip_page (void)
{
struct sdl_priv_s *priv = &sdl_priv;
/* check and react on keypresses and window resizes */
check_events();
/* blit to the YUV overlay */
SDL_DisplayYUVOverlay (priv->overlay, &priv->surface->clip_rect);
/* check if we have a double buffered surface and flip() if we do. */
if ( priv->surface->flags & SDL_DOUBLEBUF )
SDL_Flip(priv->surface);
SDL_LockYUVOverlay (priv->overlay);
}
#if 0
static frame_t* sdl_allocate_image_buffer(int width, int height)
{
struct sdl_priv_s *priv = &sdl_priv;
frame_t *frame;
if (!(frame = malloc (sizeof (frame_t))))
return NULL;
if (!(frame->private = (void*) SDL_CreateYUVOverlay (width, height,
SDL_IYUV_OVERLAY, priv->surface)))
{
// LOG (LOG_ERROR, "SDL video out: Couldn't create an SDL-based YUV overlay");
return NULL;
}
frame->base[0] = (uint8_t*) ((SDL_Overlay*) (frame->private))->pixels[0];
frame->base[1] = (uint8_t*) ((SDL_Overlay*) (frame->private))->pixels[1];
frame->base[2] = (uint8_t*) ((SDL_Overlay*) (frame->private))->pixels[2];
SDL_LockYUVOverlay ((SDL_Overlay*) frame->private);
return frame;
}
static void sdl_free_image_buffer(frame_t* frame)
{
SDL_FreeYUVOverlay((SDL_Overlay*) frame->private);
free(frame);
}
#endif
static uint32_t
query_format(uint32_t format)
{
switch(format){
case IMGFMT_YV12:
case IMGFMT_YUY2:
// case IMGFMT_RGB|24:
// case IMGFMT_BGR|24:
return 1;
}
return 0;
}
static const vo_info_t*
get_info(void)
{
return &vo_info;
}
static void
uninit(void)
{
sdl_close();
}
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