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mpv/video/out/vo_sdl.c
wm4 4e2574f025 command: make window-scale property observable 
Add a generic mechanism to the VO to relay "extra" events from VO to
player. Use it to notify the core of window resizes, which in turn will
be used to mark all affected properties ("window-scale" in this case) as
changed.

(I refrained from hacking this as internal command into input_ctx, or to
poll the state change, etc. - but in the end, maybe it would be best to
actually pass the client API context directly to the places where events
can happen.)
2014-11-02 20:53:56 +01:00

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/*
* video output driver for SDL 2.0+
* Copyright (C) 2012 Rudolf Polzer <divVerent@xonotic.org>
*
* This file is part of mpv.
*
* 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 <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <assert.h>
#include <SDL.h>
#include "input/input.h"
#include "input/keycodes.h"
#include "input/input.h"
#include "common/msg.h"
#include "options/options.h"
#include "osdep/timer.h"
#include "sub/osd.h"
#include "video/mp_image.h"
#include "video/vfcap.h"
#include "win_state.h"
#include "config.h"
#include "vo.h"
struct formatmap_entry {
Uint32 sdl;
unsigned int mpv;
int is_rgba;
};
const struct formatmap_entry formats[] = {
{SDL_PIXELFORMAT_YV12, IMGFMT_420P, 0},
{SDL_PIXELFORMAT_IYUV, IMGFMT_420P, 0},
{SDL_PIXELFORMAT_YUY2, IMGFMT_YUYV, 0},
{SDL_PIXELFORMAT_UYVY, IMGFMT_UYVY, 0},
//{SDL_PIXELFORMAT_YVYU, IMGFMT_YVYU, 0},
#if BYTE_ORDER == BIG_ENDIAN
{SDL_PIXELFORMAT_RGBX8888, IMGFMT_RGBA, 0}, // has no alpha -> bad for OSD
{SDL_PIXELFORMAT_BGRX8888, IMGFMT_BGRA, 0}, // has no alpha -> bad for OSD
{SDL_PIXELFORMAT_ARGB8888, IMGFMT_ARGB, 1}, // matches SUBBITMAP_RGBA
{SDL_PIXELFORMAT_RGBA8888, IMGFMT_RGBA, 1},
{SDL_PIXELFORMAT_ABGR8888, IMGFMT_ABGR, 1},
{SDL_PIXELFORMAT_BGRA8888, IMGFMT_BGRA, 1},
{SDL_PIXELFORMAT_RGB24, IMGFMT_RGB24, 0},
{SDL_PIXELFORMAT_BGR24, IMGFMT_BGR24, 0},
{SDL_PIXELFORMAT_RGB888, IMGFMT_RGB24, 0},
{SDL_PIXELFORMAT_BGR888, IMGFMT_BGR24, 0},
{SDL_PIXELFORMAT_RGB565, IMGFMT_BGR565, 0},
{SDL_PIXELFORMAT_BGR565, IMGFMT_RGB565, 0},
{SDL_PIXELFORMAT_RGB555, IMGFMT_BGR555, 0},
{SDL_PIXELFORMAT_BGR555, IMGFMT_RGB555, 0},
{SDL_PIXELFORMAT_RGB444, IMGFMT_BGR444, 0}
#else
{SDL_PIXELFORMAT_RGBX8888, IMGFMT_ABGR, 0}, // has no alpha -> bad for OSD
{SDL_PIXELFORMAT_BGRX8888, IMGFMT_ARGB, 0}, // has no alpha -> bad for OSD
{SDL_PIXELFORMAT_ARGB8888, IMGFMT_BGRA, 1}, // matches SUBBITMAP_RGBA
{SDL_PIXELFORMAT_RGBA8888, IMGFMT_ABGR, 1},
{SDL_PIXELFORMAT_ABGR8888, IMGFMT_RGBA, 1},
{SDL_PIXELFORMAT_BGRA8888, IMGFMT_ARGB, 1},
{SDL_PIXELFORMAT_RGB24, IMGFMT_RGB24, 0},
{SDL_PIXELFORMAT_BGR24, IMGFMT_BGR24, 0},
{SDL_PIXELFORMAT_RGB888, IMGFMT_BGR24, 0},
{SDL_PIXELFORMAT_BGR888, IMGFMT_RGB24, 0},
{SDL_PIXELFORMAT_RGB565, IMGFMT_RGB565, 0},
{SDL_PIXELFORMAT_BGR565, IMGFMT_RGB565, 0},
{SDL_PIXELFORMAT_RGB555, IMGFMT_RGB555, 0},
{SDL_PIXELFORMAT_BGR555, IMGFMT_BGR555, 0},
{SDL_PIXELFORMAT_RGB444, IMGFMT_RGB444, 0}
#endif
};
struct keymap_entry {
SDL_Keycode sdl;
int mpv;
};
const struct keymap_entry keys[] = {
{SDLK_RETURN, MP_KEY_ENTER},
{SDLK_ESCAPE, MP_KEY_ESC},
{SDLK_BACKSPACE, MP_KEY_BACKSPACE},
{SDLK_TAB, MP_KEY_TAB},
{SDLK_PRINTSCREEN, MP_KEY_PRINT},
{SDLK_PAUSE, MP_KEY_PAUSE},
{SDLK_INSERT, MP_KEY_INSERT},
{SDLK_HOME, MP_KEY_HOME},
{SDLK_PAGEUP, MP_KEY_PAGE_UP},
{SDLK_DELETE, MP_KEY_DELETE},
{SDLK_END, MP_KEY_END},
{SDLK_PAGEDOWN, MP_KEY_PAGE_DOWN},
{SDLK_RIGHT, MP_KEY_RIGHT},
{SDLK_LEFT, MP_KEY_LEFT},
{SDLK_DOWN, MP_KEY_DOWN},
{SDLK_UP, MP_KEY_UP},
{SDLK_KP_ENTER, MP_KEY_KPENTER},
{SDLK_KP_1, MP_KEY_KP1},
{SDLK_KP_2, MP_KEY_KP2},
{SDLK_KP_3, MP_KEY_KP3},
{SDLK_KP_4, MP_KEY_KP4},
{SDLK_KP_5, MP_KEY_KP5},
{SDLK_KP_6, MP_KEY_KP6},
{SDLK_KP_7, MP_KEY_KP7},
{SDLK_KP_8, MP_KEY_KP8},
{SDLK_KP_9, MP_KEY_KP9},
{SDLK_KP_0, MP_KEY_KP0},
{SDLK_KP_PERIOD, MP_KEY_KPDEC},
{SDLK_POWER, MP_KEY_POWER},
{SDLK_MENU, MP_KEY_MENU},
{SDLK_STOP, MP_KEY_STOP},
{SDLK_MUTE, MP_KEY_MUTE},
{SDLK_VOLUMEUP, MP_KEY_VOLUME_UP},
{SDLK_VOLUMEDOWN, MP_KEY_VOLUME_DOWN},
{SDLK_KP_COMMA, MP_KEY_KPDEC},
{SDLK_AUDIONEXT, MP_KEY_NEXT},
{SDLK_AUDIOPREV, MP_KEY_PREV},
{SDLK_AUDIOSTOP, MP_KEY_STOP},
{SDLK_AUDIOPLAY, MP_KEY_PLAY},
{SDLK_AUDIOMUTE, MP_KEY_MUTE},
{SDLK_F1, MP_KEY_F + 1},
{SDLK_F2, MP_KEY_F + 2},
{SDLK_F3, MP_KEY_F + 3},
{SDLK_F4, MP_KEY_F + 4},
{SDLK_F5, MP_KEY_F + 5},
{SDLK_F6, MP_KEY_F + 6},
{SDLK_F7, MP_KEY_F + 7},
{SDLK_F8, MP_KEY_F + 8},
{SDLK_F9, MP_KEY_F + 9},
{SDLK_F10, MP_KEY_F + 10},
{SDLK_F11, MP_KEY_F + 11},
{SDLK_F12, MP_KEY_F + 12},
{SDLK_F13, MP_KEY_F + 13},
{SDLK_F14, MP_KEY_F + 14},
{SDLK_F15, MP_KEY_F + 15},
{SDLK_F16, MP_KEY_F + 16},
{SDLK_F17, MP_KEY_F + 17},
{SDLK_F18, MP_KEY_F + 18},
{SDLK_F19, MP_KEY_F + 19},
{SDLK_F20, MP_KEY_F + 20},
{SDLK_F21, MP_KEY_F + 21},
{SDLK_F22, MP_KEY_F + 22},
{SDLK_F23, MP_KEY_F + 23},
{SDLK_F24, MP_KEY_F + 24}
};
struct priv {
bool reinit_renderer;
SDL_Window *window;
SDL_Renderer *renderer;
int renderer_index;
SDL_RendererInfo renderer_info;
SDL_Texture *tex;
int tex_swapped;
struct mp_image_params params;
mp_image_t *ssmpi;
struct mp_rect src_rect;
struct mp_rect dst_rect;
struct mp_osd_res osd_res;
struct formatmap_entry osd_format;
struct osd_bitmap_surface {
int bitmap_id;
int bitmap_pos_id;
struct osd_target {
SDL_Rect source;
SDL_Rect dest;
SDL_Texture *tex;
SDL_Texture *tex2;
} *targets;
int num_targets;
int targets_size;
} osd_surfaces[MAX_OSD_PARTS];
double osd_pts;
int mouse_hidden;
int brightness, contrast;
Uint32 wakeup_event;
// options
int allow_sw;
int switch_mode;
int vsync;
};
static bool lock_texture(struct vo *vo, struct mp_image *texmpi)
{
struct priv *vc = vo->priv;
*texmpi = (struct mp_image){0};
mp_image_set_size(texmpi, vc->params.w, vc->params.h);
mp_image_setfmt(texmpi, vc->params.imgfmt);
switch (texmpi->num_planes) {
case 1:
case 3:
break;
default:
MP_ERR(vo, "Invalid plane count\n");
return false;
}
void *pixels;
int pitch;
if (SDL_LockTexture(vc->tex, NULL, &pixels, &pitch)) {
MP_ERR(vo, "SDL_LockTexture failed\n");
return false;
}
texmpi->planes[0] = pixels;
texmpi->stride[0] = pitch;
if (texmpi->num_planes == 3) {
if (vc->tex_swapped) {
texmpi->planes[2] =
((Uint8 *) texmpi->planes[0] + texmpi->h * pitch);
texmpi->stride[2] = pitch / 2;
texmpi->planes[1] =
((Uint8 *) texmpi->planes[2] + (texmpi->h * pitch) / 4);
texmpi->stride[1] = pitch / 2;
} else {
texmpi->planes[1] =
((Uint8 *) texmpi->planes[0] + texmpi->h * pitch);
texmpi->stride[1] = pitch / 2;
texmpi->planes[2] =
((Uint8 *) texmpi->planes[1] + (texmpi->h * pitch) / 4);
texmpi->stride[2] = pitch / 2;
}
}
return true;
}
static bool is_good_renderer(SDL_RendererInfo *ri,
const char *driver_name_wanted, int allow_sw,
struct formatmap_entry *osd_format)
{
if (driver_name_wanted && driver_name_wanted[0])
if (strcmp(driver_name_wanted, ri->name))
return false;
if (!allow_sw &&
!(ri->flags & SDL_RENDERER_ACCELERATED))
return false;
int i, j;
for (i = 0; i < ri->num_texture_formats; ++i)
for (j = 0; j < sizeof(formats) / sizeof(formats[0]); ++j)
if (ri->texture_formats[i] == formats[j].sdl)
if (formats[j].is_rgba) {
if (osd_format)
*osd_format = formats[j];
return true;
}
return false;
}
static void destroy_renderer(struct vo *vo)
{
struct priv *vc = vo->priv;
// free ALL the textures
if (vc->tex) {
SDL_DestroyTexture(vc->tex);
vc->tex = NULL;
}
int i, j;
for (i = 0; i < MAX_OSD_PARTS; ++i) {
for (j = 0; j < vc->osd_surfaces[i].targets_size; ++j) {
if (vc->osd_surfaces[i].targets[j].tex) {
SDL_DestroyTexture(vc->osd_surfaces[i].targets[j].tex);
vc->osd_surfaces[i].targets[j].tex = NULL;
}
if (vc->osd_surfaces[i].targets[j].tex2) {
SDL_DestroyTexture(vc->osd_surfaces[i].targets[j].tex2);
vc->osd_surfaces[i].targets[j].tex2 = NULL;
}
}
}
if (vc->renderer) {
SDL_DestroyRenderer(vc->renderer);
vc->renderer = NULL;
}
if (vc->window) {
SDL_DestroyWindow(vc->window);
vc->window = NULL;
}
}
static bool try_create_renderer(struct vo *vo, int i, const char *driver,
struct mp_rect *rc, int flags)
{
struct priv *vc = vo->priv;
// first probe
SDL_RendererInfo ri;
if (SDL_GetRenderDriverInfo(i, &ri))
return false;
if (!is_good_renderer(&ri, driver, vc->allow_sw, NULL))
return false;
bool xy_valid = flags & VO_WIN_FORCE_POS;
// then actually try
vc->window = SDL_CreateWindow("MPV",
xy_valid ? rc->x0 : SDL_WINDOWPOS_UNDEFINED,
xy_valid ? rc->y0 : SDL_WINDOWPOS_UNDEFINED,
rc->x1 - rc->x0, rc->y1 - rc->y0,
SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN);
if (!vc->window) {
MP_ERR(vo, "SDL_CreateWindow failed\n");
destroy_renderer(vo);
return false;
}
vc->renderer = SDL_CreateRenderer(vc->window, i, 0);
if (!vc->renderer) {
MP_ERR(vo, "SDL_CreateRenderer failed\n");
destroy_renderer(vo);
return false;
}
if (SDL_GetRendererInfo(vc->renderer, &vc->renderer_info)) {
MP_ERR(vo, "SDL_GetRendererInfo failed\n");
destroy_renderer(vo);
return false;
}
if (!is_good_renderer(&vc->renderer_info, NULL, vc->allow_sw,
&vc->osd_format)) {
MP_ERR(vo, "Renderer '%s' does not fulfill "
"requirements on this system\n",
vc->renderer_info.name);
destroy_renderer(vo);
return false;
}
if (vc->renderer_index != i) {
MP_INFO(vo, "Using %s\n", vc->renderer_info.name);
vc->renderer_index = i;
}
return true;
}
// flags: VO_WIN_* bits
static int init_renderer(struct vo *vo, struct mp_rect *rc, int flags)
{
struct priv *vc = vo->priv;
int n = SDL_GetNumRenderDrivers();
int i;
if (vc->renderer_index >= 0)
if (try_create_renderer(vo, vc->renderer_index, NULL, rc, flags))
return 0;
for (i = 0; i < n; ++i)
if (try_create_renderer(vo, i, SDL_GetHint(SDL_HINT_RENDER_DRIVER),
rc, flags))
return 0;
for (i = 0; i < n; ++i)
if (try_create_renderer(vo, i, NULL, rc, flags))
return 0;
MP_ERR(vo, "No supported renderer\n");
return -1;
}
static void resize(struct vo *vo, int w, int h)
{
struct priv *vc = vo->priv;
vo->dwidth = w;
vo->dheight = h;
vo_get_src_dst_rects(vo, &vc->src_rect, &vc->dst_rect,
&vc->osd_res);
SDL_RenderSetLogicalSize(vc->renderer, w, h);
vo->want_redraw = true;
vo_wakeup(vo);
}
static void force_resize(struct vo *vo)
{
struct priv *vc = vo->priv;
int w, h;
SDL_GetWindowSize(vc->window, &w, &h);
resize(vo, w, h);
}
static void check_resize(struct vo *vo)
{
struct priv *vc = vo->priv;
int w, h;
SDL_GetWindowSize(vc->window, &w, &h);
if (vo->dwidth != w || vo->dheight != h)
resize(vo, w, h);
}
static void set_fullscreen(struct vo *vo)
{
struct priv *vc = vo->priv;
int fs = vo->opts->fullscreen;
Uint32 fs_flag;
if (vc->switch_mode)
fs_flag = SDL_WINDOW_FULLSCREEN;
else
fs_flag = SDL_WINDOW_FULLSCREEN_DESKTOP;
Uint32 old_flags = SDL_GetWindowFlags(vc->window);
int prev_fs = !!(old_flags & fs_flag);
if (fs == prev_fs)
return;
Uint32 flags = 0;
if (fs)
flags |= fs_flag;
if (SDL_SetWindowFullscreen(vc->window, flags)) {
MP_ERR(vo, "SDL_SetWindowFullscreen failed\n");
return;
}
// toggling fullscreen might recreate the window, so better guard for this
SDL_DisableScreenSaver();
force_resize(vo);
}
static void update_screeninfo(struct vo *vo, struct mp_rect *screenrc)
{
struct priv *vc = vo->priv;
SDL_DisplayMode mode;
if (SDL_GetCurrentDisplayMode(SDL_GetWindowDisplayIndex(vc->window),
&mode)) {
MP_ERR(vo, "SDL_GetCurrentDisplayMode failed\n");
return;
}
*screenrc = (struct mp_rect){0, 0, mode.w, mode.h};
}
static int reconfig(struct vo *vo, struct mp_image_params *params, int flags)
{
struct priv *vc = vo->priv;
struct vo_win_geometry geo;
struct mp_rect screenrc;
update_screeninfo(vo, &screenrc);
vo_calc_window_geometry(vo, &screenrc, &geo);
vo_apply_window_geometry(vo, &geo);
int win_w = vo->dwidth;
int win_h = vo->dheight;
if (vc->reinit_renderer) {
destroy_renderer(vo);
vc->reinit_renderer = false;
}
if (vc->window)
SDL_SetWindowSize(vc->window, win_w, win_h);
else {
if (init_renderer(vo, &geo.win, geo.flags) != 0)
return -1;
}
if (vc->tex)
SDL_DestroyTexture(vc->tex);
Uint32 texfmt = SDL_PIXELFORMAT_UNKNOWN;
int i, j;
for (i = 0; i < vc->renderer_info.num_texture_formats; ++i)
for (j = 0; j < sizeof(formats) / sizeof(formats[0]); ++j)
if (vc->renderer_info.texture_formats[i] == formats[j].sdl)
if (params->imgfmt == formats[j].mpv)
texfmt = formats[j].sdl;
if (texfmt == SDL_PIXELFORMAT_UNKNOWN) {
MP_ERR(vo, "Invalid pixel format\n");
return -1;
}
vc->tex_swapped = texfmt == SDL_PIXELFORMAT_YV12;
vc->tex = SDL_CreateTexture(vc->renderer, texfmt,
SDL_TEXTUREACCESS_STREAMING,
params->w, params->h);
if (!vc->tex) {
MP_ERR(vo, "Could not create a texture\n");
return -1;
}
vc->params = *params;
struct mp_image tmp;
if (!lock_texture(vo, &tmp)) {
SDL_DestroyTexture(vc->tex);
vc->tex = NULL;
return -1;
}
mp_image_clear(&tmp, 0, 0, tmp.w, tmp.h);
SDL_UnlockTexture(vc->tex);
resize(vo, win_w, win_h);
SDL_DisableScreenSaver();
set_fullscreen(vo);
SDL_SetWindowTitle(vc->window, vo_get_window_title(vo));
SDL_ShowWindow(vc->window);
check_resize(vo);
return 0;
}
static void flip_page(struct vo *vo)
{
struct priv *vc = vo->priv;
SDL_RenderPresent(vc->renderer);
}
static void wakeup(struct vo *vo)
{
struct priv *vc = vo->priv;
SDL_Event event = {.type = vc->wakeup_event};
// Note that there is no context - SDL is a singleton.
SDL_PushEvent(&event);
}
static int wait_events(struct vo *vo, int64_t until_time_us)
{
int64_t wait_us = until_time_us - mp_time_us();
int timeout_ms = MPCLAMP((wait_us + 500) / 1000, 0, 10000);
SDL_Event ev;
while (SDL_WaitEventTimeout(&ev, timeout_ms)) {
timeout_ms = 0;
switch (ev.type) {
case SDL_WINDOWEVENT:
switch (ev.window.event) {
case SDL_WINDOWEVENT_EXPOSED:
vo->want_redraw = true;
break;
case SDL_WINDOWEVENT_SIZE_CHANGED:
check_resize(vo);
vo_event(vo, VO_EVENT_RESIZE);
break;
}
break;
case SDL_QUIT:
mp_input_put_key(vo->input_ctx, MP_KEY_CLOSE_WIN);
break;
case SDL_TEXTINPUT: {
int sdl_mod = SDL_GetModState();
int mpv_mod = 0;
// we ignore KMOD_LSHIFT, KMOD_RSHIFT and KMOD_RALT (if
// mp_input_use_alt_gr() is true) because these are already
// factored into ev.text.text
if (sdl_mod & (KMOD_LCTRL | KMOD_RCTRL))
mpv_mod |= MP_KEY_MODIFIER_CTRL;
if ((sdl_mod & KMOD_LALT) ||
(sdl_mod & KMOD_RALT) && !mp_input_use_alt_gr(vo->input_ctx))
mpv_mod |= MP_KEY_MODIFIER_ALT;
if (sdl_mod & (KMOD_LGUI | KMOD_RGUI))
mpv_mod |= MP_KEY_MODIFIER_META;
struct bstr t = {
ev.text.text, strlen(ev.text.text)
};
mp_input_put_key_utf8(vo->input_ctx, mpv_mod, t);
break;
}
case SDL_KEYDOWN: {
// Issue: we don't know in advance whether this keydown event
// will ALSO cause a SDL_TEXTINPUT event
// So we're conservative, and only map non printable keycodes
// (e.g. function keys, arrow keys, etc.)
// However, this does lose some keypresses at least on X11
// (e.g. Ctrl-A generates SDL_KEYDOWN only, but the key is
// 'a'... and 'a' is normally also handled by SDL_TEXTINPUT).
// The default config does not use Ctrl, so this is fine...
int keycode = 0;
int i;
for (i = 0; i < sizeof(keys) / sizeof(keys[0]); ++i)
if (keys[i].sdl == ev.key.keysym.sym) {
keycode = keys[i].mpv;
break;
}
if (keycode) {
if (ev.key.keysym.mod & (KMOD_LSHIFT | KMOD_RSHIFT))
keycode |= MP_KEY_MODIFIER_SHIFT;
if (ev.key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL))
keycode |= MP_KEY_MODIFIER_CTRL;
if (ev.key.keysym.mod & (KMOD_LALT | KMOD_RALT))
keycode |= MP_KEY_MODIFIER_ALT;
if (ev.key.keysym.mod & (KMOD_LGUI | KMOD_RGUI))
keycode |= MP_KEY_MODIFIER_META;
mp_input_put_key(vo->input_ctx, keycode);
}
break;
}
case SDL_MOUSEMOTION:
mp_input_set_mouse_pos(vo->input_ctx, ev.motion.x, ev.motion.y);
break;
case SDL_MOUSEBUTTONDOWN:
mp_input_put_key(vo->input_ctx,
(MP_MOUSE_BTN0 + ev.button.button - 1) | MP_KEY_STATE_DOWN);
break;
case SDL_MOUSEBUTTONUP:
mp_input_put_key(vo->input_ctx,
(MP_MOUSE_BTN0 + ev.button.button - 1) | MP_KEY_STATE_UP);
break;
case SDL_MOUSEWHEEL:
break;
}
}
return 0;
}
static void uninit(struct vo *vo)
{
struct priv *vc = vo->priv;
destroy_renderer(vo);
talloc_free(vc->ssmpi);
SDL_QuitSubSystem(SDL_INIT_VIDEO);
talloc_free(vc);
}
static inline void upload_to_texture(struct vo *vo, SDL_Texture *tex,
int w, int h, void *bitmap, int stride)
{
struct priv *vc = vo->priv;
if (vc->osd_format.sdl == SDL_PIXELFORMAT_ARGB8888) {
// NOTE: this optimization is questionable, because SDL docs say
// that this way is slow.
// It did measure up faster, though...
SDL_UpdateTexture(tex, NULL, bitmap, stride);
return;
}
void *pixels;
int pitch;
if (SDL_LockTexture(tex, NULL, &pixels, &pitch)) {
MP_ERR(vo, "Could not lock texture\n");
} else {
SDL_ConvertPixels(w, h, SDL_PIXELFORMAT_ARGB8888,
bitmap, stride,
vc->osd_format.sdl,
pixels, pitch);
SDL_UnlockTexture(tex);
}
}
static inline void subbitmap_to_texture(struct vo *vo, SDL_Texture *tex,
struct sub_bitmap *bmp,
uint32_t ormask)
{
if (ormask == 0) {
upload_to_texture(vo, tex, bmp->w, bmp->h,
bmp->bitmap, bmp->stride);
} else {
uint32_t *temppixels;
temppixels = talloc_array(vo, uint32_t, bmp->w * bmp->h);
int x, y;
for (y = 0; y < bmp->h; ++y) {
const uint32_t *src =
(const uint32_t *) ((const char *) bmp->bitmap + y * bmp->stride);
uint32_t *dst = temppixels + y * bmp->w;
for (x = 0; x < bmp->w; ++x)
dst[x] = src[x] | ormask;
}
upload_to_texture(vo, tex, bmp->w, bmp->h,
temppixels, sizeof(uint32_t) * bmp->w);
talloc_free(temppixels);
}
}
static void generate_osd_part(struct vo *vo, struct sub_bitmaps *imgs)
{
struct priv *vc = vo->priv;
struct osd_bitmap_surface *sfc = &vc->osd_surfaces[imgs->render_index];
if (imgs->format == SUBBITMAP_EMPTY || imgs->num_parts == 0)
return;
if (imgs->bitmap_pos_id == sfc->bitmap_pos_id)
return;
if (imgs->num_parts > sfc->targets_size) {
sfc->targets = talloc_realloc(vc, sfc->targets,
struct osd_target, imgs->num_parts);
memset(&sfc->targets[sfc->targets_size], 0, sizeof(struct osd_target) *
(imgs->num_parts - sfc->targets_size));
sfc->targets_size = imgs->num_parts;
}
sfc->num_targets = imgs->num_parts;
for (int i = 0; i < imgs->num_parts; i++) {
struct osd_target *target = sfc->targets + i;
struct sub_bitmap *bmp = imgs->parts + i;
target->source = (SDL_Rect){
0, 0, bmp->w, bmp->h
};
target->dest = (SDL_Rect){
bmp->x, bmp->y, bmp->dw, bmp->dh
};
if (imgs->bitmap_id != sfc->bitmap_id || !target->tex) {
// tex: alpha blended texture
if (target->tex) {
SDL_DestroyTexture(target->tex);
target->tex = NULL;
}
if (!target->tex)
target->tex = SDL_CreateTexture(vc->renderer,
vc->osd_format.sdl, SDL_TEXTUREACCESS_STREAMING,
bmp->w, bmp->h);
if (!target->tex) {
MP_ERR(vo, "Could not create texture\n");
}
if (target->tex) {
SDL_SetTextureBlendMode(target->tex,
SDL_BLENDMODE_BLEND);
SDL_SetTextureColorMod(target->tex, 0, 0, 0);
subbitmap_to_texture(vo, target->tex, bmp, 0); // RGBA -> 000A
}
// tex2: added texture
if (target->tex2) {
SDL_DestroyTexture(target->tex2);
target->tex2 = NULL;
}
if (!target->tex2)
target->tex2 = SDL_CreateTexture(vc->renderer,
vc->osd_format.sdl, SDL_TEXTUREACCESS_STREAMING,
bmp->w, bmp->h);
if (!target->tex2) {
MP_ERR(vo, "Could not create texture\n");
}
if (target->tex2) {
SDL_SetTextureBlendMode(target->tex2,
SDL_BLENDMODE_ADD);
subbitmap_to_texture(vo, target->tex2, bmp,
0xFF000000); // RGBA -> RGB1
}
}
}
sfc->bitmap_id = imgs->bitmap_id;
sfc->bitmap_pos_id = imgs->bitmap_pos_id;
}
static void draw_osd_part(struct vo *vo, int index)
{
struct priv *vc = vo->priv;
struct osd_bitmap_surface *sfc = &vc->osd_surfaces[index];
int i;
for (i = 0; i < sfc->num_targets; i++) {
struct osd_target *target = sfc->targets + i;
if (target->tex)
SDL_RenderCopy(vc->renderer, target->tex,
&target->source, &target->dest);
if (target->tex2)
SDL_RenderCopy(vc->renderer, target->tex2,
&target->source, &target->dest);
}
}
static void draw_osd_cb(void *ctx, struct sub_bitmaps *imgs)
{
struct vo *vo = ctx;
generate_osd_part(vo, imgs);
draw_osd_part(vo, imgs->render_index);
}
static void draw_osd(struct vo *vo)
{
struct priv *vc = vo->priv;
static const bool osdformats[SUBBITMAP_COUNT] = {
[SUBBITMAP_RGBA] = true,
};
osd_draw(vo->osd, vc->osd_res, vc->osd_pts, 0, osdformats, draw_osd_cb, vo);
}
static int preinit(struct vo *vo)
{
struct priv *vc = vo->priv;
if (SDL_WasInit(SDL_INIT_VIDEO)) {
MP_ERR(vo, "already initialized\n");
return -1;
}
// predefine SDL defaults (SDL env vars shall override)
SDL_SetHintWithPriority(SDL_HINT_RENDER_SCALE_QUALITY, "1",
SDL_HINT_DEFAULT);
SDL_SetHintWithPriority(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, "0",
SDL_HINT_DEFAULT);
// predefine MPV options (SDL env vars shall be overridden)
SDL_SetHintWithPriority(SDL_HINT_RENDER_VSYNC, vc->vsync ? "1" : "0",
SDL_HINT_OVERRIDE);
if (SDL_InitSubSystem(SDL_INIT_VIDEO)) {
MP_ERR(vo, "SDL_Init failed\n");
return -1;
}
// try creating a renderer (this also gets the renderer_info data
// for query_format to use!)
if (init_renderer(vo, &(struct mp_rect){.x1 = 640, .y1 = 480}, 0) != 0)
return -1;
// please reinitialize the renderer to proper size on config()
vc->reinit_renderer = true;
vc->wakeup_event = SDL_RegisterEvents(1);
if (vc->wakeup_event == (Uint32)-1)
MP_ERR(vo, "SDL_RegisterEvents() failed.\n");
return 0;
}
static int query_format(struct vo *vo, uint32_t format)
{
struct priv *vc = vo->priv;
int i, j;
int cap = VFCAP_CSP_SUPPORTED;
for (i = 0; i < vc->renderer_info.num_texture_formats; ++i)
for (j = 0; j < sizeof(formats) / sizeof(formats[0]); ++j)
if (vc->renderer_info.texture_formats[i] == formats[j].sdl)
if (format == formats[j].mpv)
return cap;
return 0;
}
static void draw_image(struct vo *vo, mp_image_t *mpi)
{
struct priv *vc = vo->priv;
// decode brightness/contrast
int color_add = 0;
int color_mod = 255;
int brightness = vc->brightness;
int contrast = vc->contrast;
// only in this range it is possible to do brightness/contrast control
// properly, using just additive render operations and color modding
// (SDL2 provides no subtractive rendering, sorry)
if (2 * brightness < contrast) {
//brightness = (brightness + 2 * contrast) / 5; // closest point
brightness = (brightness + contrast) / 3; // equal adjustment
contrast = 2 * brightness;
}
// convert to values SDL2 likes
color_mod = ((contrast + 100) * 255 + 50) / 100;
color_add = ((2 * brightness - contrast) * 255 + 100) / 200;
// clamp
if (color_mod < 0)
color_mod = 0;
if (color_mod > 255)
color_mod = 255;
// color_add can't be < 0
if (color_add > 255)
color_add = 255;
// typically this runs in parallel with the following mp_image_copy call
SDL_SetRenderDrawColor(vc->renderer, color_add, color_add, color_add, 255);
SDL_RenderClear(vc->renderer);
// use additive blending for the video texture only if the clear color is
// not black (faster especially for the software renderer)
if (color_add)
SDL_SetTextureBlendMode(vc->tex, SDL_BLENDMODE_ADD);
else
SDL_SetTextureBlendMode(vc->tex, SDL_BLENDMODE_NONE);
if (mpi) {
vc->osd_pts = mpi->pts;
mp_image_t texmpi;
if (!lock_texture(vo, &texmpi)) {
talloc_free(mpi);
return;
}
mp_image_copy(&texmpi, mpi);
SDL_UnlockTexture(vc->tex);
talloc_free(vc->ssmpi);
vc->ssmpi = mpi;
}
SDL_Rect src, dst;
src.x = vc->src_rect.x0;
src.y = vc->src_rect.y0;
src.w = vc->src_rect.x1 - vc->src_rect.x0;
src.h = vc->src_rect.y1 - vc->src_rect.y0;
dst.x = vc->dst_rect.x0;
dst.y = vc->dst_rect.y0;
dst.w = vc->dst_rect.x1 - vc->dst_rect.x0;
dst.h = vc->dst_rect.y1 - vc->dst_rect.y0;
// typically this runs in parallel with the following mp_image_copy call
if (color_mod > 255) {
SDL_SetTextureColorMod(vc->tex, color_mod / 2, color_mod / 2, color_mod / 2);
SDL_RenderCopy(vc->renderer, vc->tex, &src, &dst);
SDL_RenderCopy(vc->renderer, vc->tex, &src, &dst);
} else {
SDL_SetTextureColorMod(vc->tex, color_mod, color_mod, color_mod);
SDL_RenderCopy(vc->renderer, vc->tex, &src, &dst);
}
draw_osd(vo);
}
static struct mp_image *get_screenshot(struct vo *vo)
{
struct priv *vc = vo->priv;
return vc->ssmpi ? mp_image_new_ref(vc->ssmpi) : NULL;
}
static struct mp_image *get_window_screenshot(struct vo *vo)
{
struct priv *vc = vo->priv;
struct mp_image *image = mp_image_alloc(vc->osd_format.mpv, vo->dwidth,
vo->dheight);
if (!image)
return NULL;
if (SDL_RenderReadPixels(vc->renderer, NULL, vc->osd_format.sdl,
image->planes[0], image->stride[0])) {
MP_ERR(vo, "SDL_RenderReadPixels failed\n");
talloc_free(image);
return NULL;
}
return image;
}
static int set_eq(struct vo *vo, const char *name, int value)
{
struct priv *vc = vo->priv;
if (!strcmp(name, "brightness"))
vc->brightness = value;
else if (!strcmp(name, "contrast"))
vc->contrast = value;
else
return VO_NOTIMPL;
vo->want_redraw = true;
return VO_TRUE;
}
static int get_eq(struct vo *vo, const char *name, int *value)
{
struct priv *vc = vo->priv;
if (!strcmp(name, "brightness"))
*value = vc->brightness;
else if (!strcmp(name, "contrast"))
*value = vc->contrast;
else
return VO_NOTIMPL;
return VO_TRUE;
}
static int control(struct vo *vo, uint32_t request, void *data)
{
struct priv *vc = vo->priv;
switch (request) {
case VOCTRL_FULLSCREEN:
set_fullscreen(vo);
return 1;
case VOCTRL_REDRAW_FRAME:
draw_image(vo, NULL);
return 1;
case VOCTRL_GET_PANSCAN:
return VO_TRUE;
case VOCTRL_SET_PANSCAN:
force_resize(vo);
return VO_TRUE;
case VOCTRL_SET_EQUALIZER: {
struct voctrl_set_equalizer_args *args = data;
return set_eq(vo, args->name, args->value);
}
case VOCTRL_GET_EQUALIZER: {
struct voctrl_get_equalizer_args *args = data;
return get_eq(vo, args->name, args->valueptr);
}
case VOCTRL_SCREENSHOT: {
struct voctrl_screenshot_args *args = data;
if (args->full_window)
args->out_image = get_window_screenshot(vo);
else
args->out_image = get_screenshot(vo);
return true;
}
case VOCTRL_SET_CURSOR_VISIBILITY:
SDL_ShowCursor(*(bool *)data);
return true;
case VOCTRL_UPDATE_WINDOW_TITLE:
if (vc->window)
SDL_SetWindowTitle(vc->window, vo_get_window_title(vo));
return true;
}
return VO_NOTIMPL;
}
#define OPT_BASE_STRUCT struct priv
const struct vo_driver video_out_sdl = {
.description = "SDL 2.0 Renderer",
.name = "sdl",
.priv_size = sizeof(struct priv),
.priv_defaults = &(const struct priv) {
.renderer_index = -1,
.vsync = 1,
},
.options = (const struct m_option []){
OPT_FLAG("sw", allow_sw, 0),
OPT_FLAG("switch-mode", switch_mode, 0),
OPT_FLAG("vsync", vsync, 0),
{NULL}
},
.preinit = preinit,
.query_format = query_format,
.reconfig = reconfig,
.control = control,
.draw_image = draw_image,
.uninit = uninit,
.flip_page = flip_page,
.wait_events = wait_events,
.wakeup = wakeup,
};
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