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mpv/video/out/vo_sdl.c

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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.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#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/m_config.h"
#include "options/options.h"
#include "osdep/timer.h"
#include "sub/osd.h"
#include "video/mp_image.h"
#include "win_state.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_UYVY, IMGFMT_UYVY, 0},
//{SDL_PIXELFORMAT_YVYU, IMGFMT_YVYU, 0},
#if BYTE_ORDER == BIG_ENDIAN
{SDL_PIXELFORMAT_RGB888, IMGFMT_0RGB, 0}, // RGB888 means XRGB8888
{SDL_PIXELFORMAT_RGBX8888, IMGFMT_RGB0, 0}, // has no alpha -> bad for OSD
{SDL_PIXELFORMAT_BGR888, IMGFMT_0BGR, 0}, // BGR888 means XBGR8888
{SDL_PIXELFORMAT_BGRX8888, IMGFMT_BGR0, 0}, // has no alpha -> bad for OSD
{SDL_PIXELFORMAT_ARGB8888, IMGFMT_ARGB, 1}, // matches SUBBITMAP_BGRA
{SDL_PIXELFORMAT_RGBA8888, IMGFMT_RGBA, 1},
{SDL_PIXELFORMAT_ABGR8888, IMGFMT_ABGR, 1},
{SDL_PIXELFORMAT_BGRA8888, IMGFMT_BGRA, 1},
#else
{SDL_PIXELFORMAT_RGB888, IMGFMT_BGR0, 0}, // RGB888 means XRGB8888
{SDL_PIXELFORMAT_RGBX8888, IMGFMT_0BGR, 0}, // has no alpha -> bad for OSD
{SDL_PIXELFORMAT_BGR888, IMGFMT_RGB0, 0}, // BGR888 means XBGR8888
{SDL_PIXELFORMAT_BGRX8888, IMGFMT_0RGB, 0}, // has no alpha -> bad for OSD
{SDL_PIXELFORMAT_ARGB8888, IMGFMT_BGRA, 1}, // matches SUBBITMAP_BGRA
{SDL_PIXELFORMAT_RGBA8888, IMGFMT_ABGR, 1},
{SDL_PIXELFORMAT_ABGR8888, IMGFMT_RGBA, 1},
{SDL_PIXELFORMAT_BGRA8888, IMGFMT_ARGB, 1},
#endif
{SDL_PIXELFORMAT_RGB24, IMGFMT_RGB24, 0},
{SDL_PIXELFORMAT_BGR24, IMGFMT_BGR24, 0},
{SDL_PIXELFORMAT_RGB565, IMGFMT_RGB565, 0},
};
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 mousemap_entry {
Uint8 sdl;
int mpv;
};
const struct mousemap_entry mousebtns[] = {
{SDL_BUTTON_LEFT, MP_MBTN_LEFT},
{SDL_BUTTON_MIDDLE, MP_MBTN_MID},
{SDL_BUTTON_RIGHT, MP_MBTN_RIGHT},
{SDL_BUTTON_X1, MP_MBTN_BACK},
{SDL_BUTTON_X2, MP_MBTN_FORWARD},
};
struct priv {
SDL_Window *window;
SDL_Renderer *renderer;
int renderer_index;
SDL_RendererInfo renderer_info;
SDL_Texture *tex;
int tex_swapped;
struct mp_image_params params;
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 change_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;
Uint32 wakeup_event;
bool screensaver_enabled;
struct m_config_cache *opts_cache;
// options
bool allow_sw;
bool switch_mode;
bool 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, bool 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;
}
}
static bool try_create_renderer(struct vo *vo, int i, const char *driver)
{
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;
vc->renderer = SDL_CreateRenderer(vc->window, i, 0);
if (!vc->renderer) {
MP_ERR(vo, "SDL_CreateRenderer failed\n");
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;
}
static int init_renderer(struct vo *vo)
{
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))
return 0;
for (i = 0; i < n; ++i)
if (try_create_renderer(vo, i, SDL_GetHint(SDL_HINT_RENDER_DRIVER)))
return 0;
for (i = 0; i < n; ++i)
if (try_create_renderer(vo, i, NULL))
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 inline void set_screensaver(bool enabled)
{
if (!!enabled == !!SDL_IsScreenSaverEnabled())
return;
if (enabled)
SDL_EnableScreenSaver();
else
SDL_DisableScreenSaver();
}
static void set_fullscreen(struct vo *vo)
{
struct priv *vc = vo->priv;
struct mp_vo_opts *opts = vc->opts_cache->opts;
int fs = opts->fullscreen;
SDL_bool prev_screensaver_state = SDL_IsScreenSaverEnabled();
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
set_screensaver(prev_screensaver_state);
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)
{
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;
SDL_SetWindowSize(vc->window, win_w, win_h);
if (geo.flags & VO_WIN_FORCE_POS)
SDL_SetWindowPosition(vc->window, geo.win.x0, geo.win.y0);
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);
set_screensaver(vc->screensaver_enabled);
set_fullscreen(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 void wait_events(struct vo *vo, int64_t until_time_ns)
{
int64_t wait_ns = until_time_ns - mp_time_ns();
int timeout_ms = MPCLAMP(wait_ns / 1e6, 1, 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;
case SDL_WINDOWEVENT_ENTER:
mp_input_put_key(vo->input_ctx, MP_KEY_MOUSE_ENTER);
break;
case SDL_WINDOWEVENT_LEAVE:
mp_input_put_key(vo->input_ctx, MP_KEY_MOUSE_LEAVE);
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: {
int i;
for (i = 0; i < sizeof(mousebtns) / sizeof(mousebtns[0]); ++i)
if (mousebtns[i].sdl == ev.button.button) {
mp_input_put_key(vo->input_ctx, mousebtns[i].mpv | MP_KEY_STATE_DOWN);
break;
}
break;
}
case SDL_MOUSEBUTTONUP: {
int i;
for (i = 0; i < sizeof(mousebtns) / sizeof(mousebtns[0]); ++i)
if (mousebtns[i].sdl == ev.button.button) {
mp_input_put_key(vo->input_ctx, mousebtns[i].mpv | MP_KEY_STATE_UP);
break;
}
break;
}
case SDL_MOUSEWHEEL: {
#if SDL_VERSION_ATLEAST(2, 0, 4)
double multiplier = ev.wheel.direction == SDL_MOUSEWHEEL_FLIPPED ? -0.1 : 0.1;
#else
double multiplier = 0.1;
#endif
int y_code = ev.wheel.y > 0 ? MP_WHEEL_UP : MP_WHEEL_DOWN;
mp_input_put_wheel(vo->input_ctx, y_code, abs(ev.wheel.y) * multiplier);
int x_code = ev.wheel.x > 0 ? MP_WHEEL_RIGHT : MP_WHEEL_LEFT;
mp_input_put_wheel(vo->input_ctx, x_code, abs(ev.wheel.x) * multiplier);
break;
}
}
}
}
static void uninit(struct vo *vo)
{
struct priv *vc = vo->priv;
destroy_renderer(vo);
SDL_DestroyWindow(vc->window);
vc->window = NULL;
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->change_id == sfc->change_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
};
// 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->change_id = imgs->change_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_BGRA] = 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_EVENTS)) {
MP_ERR(vo, "Another component is using SDL already.\n");
return -1;
}
vc->opts_cache = m_config_cache_alloc(vc, vo->global, &vo_sub_opts);
// 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;
}
// then actually try
vc->window = SDL_CreateWindow("MPV", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
640, 480, SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN);
if (!vc->window) {
MP_ERR(vo, "SDL_CreateWindow failed\n");
return -1;
}
// try creating a renderer (this also gets the renderer_info data
// for query_format to use!)
if (init_renderer(vo) != 0) {
SDL_DestroyWindow(vc->window);
vc->window = NULL;
return -1;
}
vc->wakeup_event = SDL_RegisterEvents(1);
if (vc->wakeup_event == (Uint32)-1)
MP_ERR(vo, "SDL_RegisterEvents() failed.\n");
MP_WARN(vo, "Warning: this legacy VO has bad performance. Consider fixing "
"your graphics drivers, or not forcing the sdl VO.\n");
return 0;
}
static int query_format(struct vo *vo, int format)
{
struct priv *vc = vo->priv;
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 (format == formats[j].mpv)
return 1;
return 0;
}
static void draw_frame(struct vo *vo, struct vo_frame *frame)
{
struct priv *vc = vo->priv;
// typically this runs in parallel with the following mp_image_copy call
SDL_SetRenderDrawColor(vc->renderer, 0, 0, 0, 255);
SDL_RenderClear(vc->renderer);
SDL_SetTextureBlendMode(vc->tex, SDL_BLENDMODE_NONE);
if (frame->current) {
vc->osd_pts = frame->current->pts;
mp_image_t texmpi;
if (!lock_texture(vo, &texmpi))
return;
mp_image_copy(&texmpi, frame->current);
SDL_UnlockTexture(vc->tex);
}
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;
SDL_RenderCopy(vc->renderer, vc->tex, &src, &dst);
draw_osd(vo);
}
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 control(struct vo *vo, uint32_t request, void *data)
{
struct priv *vc = vo->priv;
switch (request) {
case VOCTRL_VO_OPTS_CHANGED: {
void *opt;
while (m_config_cache_get_next_changed(vc->opts_cache, &opt)) {
struct mp_vo_opts *opts = vc->opts_cache->opts;
if (&opts->fullscreen == opt)
set_fullscreen(vo);
}
return 1;
}
case VOCTRL_SET_PANSCAN:
force_resize(vo);
return VO_TRUE;
case VOCTRL_SCREENSHOT_WIN:
*(struct mp_image **)data = get_window_screenshot(vo);
return true;
case VOCTRL_SET_CURSOR_VISIBILITY:
SDL_ShowCursor(*(bool *)data);
return true;
case VOCTRL_KILL_SCREENSAVER:
vc->screensaver_enabled = false;
set_screensaver(vc->screensaver_enabled);
return VO_TRUE;
case VOCTRL_RESTORE_SCREENSAVER:
vc->screensaver_enabled = true;
set_screensaver(vc->screensaver_enabled);
return VO_TRUE;
case VOCTRL_UPDATE_WINDOW_TITLE:
SDL_SetWindowTitle(vc->window, (char *)data);
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 = true,
},
.options = (const struct m_option []){
{"sw", OPT_BOOL(allow_sw)},
{"switch-mode", OPT_BOOL(switch_mode)},
{"vsync", OPT_BOOL(vsync)},
{NULL}
},
.preinit = preinit,
.query_format = query_format,
.reconfig = reconfig,
.control = control,
.draw_frame = draw_frame,
.uninit = uninit,
.flip_page = flip_page,
.wait_events = wait_events,
.wakeup = wakeup,
.options_prefix = "sdl",
};
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