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mpv/libvo/vo_corevideo.m

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/*
* CoreVideo video output driver
* Copyright (c) 2005 Nicolas Plourde <nicolasplourde@gmail.com>
*
* 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.
*/
#import "vo_corevideo.h"
// mplayer includes
#import "fastmemcpy.h"
#import "talloc.h"
#import "video_out.h"
#import "aspect.h"
#import "sub/sub.h"
#import "subopt-helper.h"
#import "csputils.h"
#import "libmpcodecs/vfcap.h"
#import "libmpcodecs/mp_image.h"
#import "osd.h"
#import "gl_common.h"
#import "cocoa_common.h"
struct quad {
GLfloat lowerLeft[2];
GLfloat lowerRight[2];
GLfloat upperRight[2];
GLfloat upperLeft[2];
};
#define CV_VERTICES_PER_QUAD 6
#define CV_MAX_OSD_PARTS 20
struct osd_p {
GLuint tex[CV_MAX_OSD_PARTS];
NSRect tex_rect[CV_MAX_OSD_PARTS];
int tex_cnt;
};
struct priv {
MPGLContext *mpglctx;
OSType pixelFormat;
unsigned int image_width;
unsigned int image_height;
struct mp_csp_details colorspace;
CVPixelBufferRef pixelBuffer;
CVOpenGLTextureCacheRef textureCache;
CVOpenGLTextureRef texture;
struct quad *quad;
struct osd_p *osd;
};
static void resize(struct vo *vo, int width, int height)
{
struct priv *p = vo->priv;
GL *gl = p->mpglctx->gl;
p->image_width = width;
p->image_height = height;
mp_msg(MSGT_VO, MSGL_V, "[vo_corevideo] New OpenGL Viewport (0, 0, %d, "
"%d)\n", p->image_width, p->image_height);
gl->Viewport(0, 0, p->image_width, p->image_height);
gl->MatrixMode(GL_PROJECTION);
gl->LoadIdentity();
if (aspect_scaling()) {
int new_w, new_h;
GLdouble scale_x, scale_y;
aspect(vo, &new_w, &new_h, A_WINZOOM);
panscan_calc_windowed(vo);
new_w += vo->panscan_x;
new_h += vo->panscan_y;
scale_x = (GLdouble)new_w / (GLdouble)p->image_width;
scale_y = (GLdouble)new_h / (GLdouble)p->image_height;
gl->Scaled(scale_x, scale_y, 1);
}
gl->Ortho(0, p->image_width, p->image_height, 0, -1.0, 1.0);
gl->MatrixMode(GL_MODELVIEW);
gl->LoadIdentity();
vo_osd_resized();
gl->Clear(GL_COLOR_BUFFER_BIT);
vo->want_redraw = true;
}
static int init_gl(struct vo *vo, uint32_t d_width, uint32_t d_height)
{
struct priv *p = vo->priv;
GL *gl = p->mpglctx->gl;
const char *vendor = gl->GetString(GL_VENDOR);
const char *version = gl->GetString(GL_VERSION);
const char *renderer = gl->GetString(GL_RENDERER);
mp_msg(MSGT_VO, MSGL_V, "[vo_corevideo] Running on OpenGL '%s' by '%s',"
" version '%s'\n", renderer, vendor, version);
gl->Disable(GL_BLEND);
gl->Disable(GL_DEPTH_TEST);
gl->DepthMask(GL_FALSE);
gl->Disable(GL_CULL_FACE);
gl->Enable(GL_TEXTURE_2D);
gl->DrawBuffer(GL_BACK);
gl->TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
resize(vo, d_width, d_height);
gl->ClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl->Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (gl->SwapInterval)
gl->SwapInterval(1);
return 1;
}
static void release_cv_entities(struct vo *vo) {
struct priv *p = vo->priv;
CVPixelBufferRelease(p->pixelBuffer);
p->pixelBuffer = NULL;
CVOpenGLTextureRelease(p->texture);
p->texture = NULL;
CVOpenGLTextureCacheRelease(p->textureCache);
p->textureCache = NULL;
}
static int config(struct vo *vo, uint32_t width, uint32_t height,
uint32_t d_width, uint32_t d_height, uint32_t flags,
uint32_t format)
{
struct priv *p = vo->priv;
release_cv_entities(vo);
p->image_width = width;
p->image_height = height;
int mpgl_caps = MPGL_CAP_GL_LEGACY;
if (!mpgl_create_window(p->mpglctx, mpgl_caps, d_width, d_height, flags))
return -1;
init_gl(vo, vo->dwidth, vo->dheight);
return 0;
}
static void check_events(struct vo *vo)
{
struct priv *p = vo->priv;
int e = p->mpglctx->check_events(vo);
if (e & VO_EVENT_RESIZE)
resize(vo, vo->dwidth, vo->dheight);
}
static void create_osd_texture(void *ctx, int x0, int y0, int w, int h,
unsigned char *src, unsigned char *srca,
int stride)
{
struct priv *p = ((struct vo *) ctx)->priv;
struct osd_p *osd = p->osd;
GL *gl = p->mpglctx->gl;
if (w <= 0 || h <= 0 || stride < w) {
mp_msg(MSGT_VO, MSGL_V, "Invalid dimensions OSD for part!\n");
return;
}
if (osd->tex_cnt >= CV_MAX_OSD_PARTS) {
mp_msg(MSGT_VO, MSGL_ERR, "Too many OSD parts, contact the"
" developers!\n");
return;
}
gl->GenTextures(1, &osd->tex[osd->tex_cnt]);
gl->BindTexture(GL_TEXTURE_2D, osd->tex[osd->tex_cnt]);
glCreateClearTex(gl, GL_TEXTURE_2D, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, GL_LINEAR, w, h, 0);
{
int i;
unsigned char *tmp = malloc(stride * h * 2);
// convert alpha from weird MPlayer scale.
for (i = 0; i < h * stride; i++) {
tmp[i*2+0] = src[i];
tmp[i*2+1] = -srca[i];
}
glUploadTex(gl, GL_TEXTURE_2D, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE,
tmp, stride * 2, 0, 0, w, h, 0);
free(tmp);
}
osd->tex_rect[osd->tex_cnt] = NSMakeRect(x0, y0, w, h);
gl->BindTexture(GL_TEXTURE_2D, 0);
osd->tex_cnt++;
}
static void clearOSD(struct vo *vo)
{
struct priv *p = vo->priv;
struct osd_p *osd = p->osd;
GL *gl = p->mpglctx->gl;
if (!osd->tex_cnt)
return;
gl->DeleteTextures(osd->tex_cnt, osd->tex);
osd->tex_cnt = 0;
}
static void draw_osd(struct vo *vo, struct osd_state *osd_s)
{
struct priv *p = vo->priv;
struct osd_p *osd = p->osd;
GL *gl = p->mpglctx->gl;
if (vo_osd_has_changed(osd_s)) {
clearOSD(vo);
osd_draw_text_ext(osd_s, vo->dwidth, vo->dheight, 0, 0, 0, 0,
p->image_width, p->image_height, create_osd_texture,
vo);
}
if (osd->tex_cnt > 0) {
gl->Enable(GL_BLEND);
gl->BlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
for (int n = 0; n < osd->tex_cnt; n++) {
NSRect tr = osd->tex_rect[n];
gl->BindTexture(GL_TEXTURE_2D, osd->tex[n]);
glDrawTex(gl, tr.origin.x, tr.origin.y,
tr.size.width, tr.size.height,
0, 0, 1.0, 1.0, 1, 1, 0, 0, 0);
}
gl->Disable(GL_BLEND);
gl->BindTexture(GL_TEXTURE_2D, 0);
}
}
static void prepare_texture(struct vo *vo)
{
struct priv *p = vo->priv;
struct quad *q = p->quad;
CVReturn error;
CVOpenGLTextureRelease(p->texture);
error = CVOpenGLTextureCacheCreateTextureFromImage(NULL,
p->textureCache, p->pixelBuffer, 0, &p->texture);
if(error != kCVReturnSuccess)
mp_msg(MSGT_VO, MSGL_ERR,"[vo_corevideo] Failed to create OpenGL"
" texture(%d)\n", error);
CVOpenGLTextureGetCleanTexCoords(p->texture, q->lowerLeft, q->lowerRight,
q->upperRight, q->upperLeft);
}
static void do_render(struct vo *vo)
{
struct priv *p = vo->priv;
struct quad *q = p->quad;
GL *gl = p->mpglctx->gl;
prepare_texture(vo);
float x0 = 0;
float y0 = 0;
float w = p->image_width;
float h = p->image_height;
// vertically flips the image
y0 += h;
h = -h;
float xm = x0 + w;
float ym = y0 + h;
gl->Enable(CVOpenGLTextureGetTarget(p->texture));
gl->BindTexture(
CVOpenGLTextureGetTarget(p->texture),
CVOpenGLTextureGetName(p->texture));
gl->Begin(GL_QUADS);
gl->TexCoord2fv(q->lowerLeft); gl->Vertex2f(x0, y0);
gl->TexCoord2fv(q->upperLeft); gl->Vertex2f(x0, ym);
gl->TexCoord2fv(q->upperRight); gl->Vertex2f(xm, ym);
gl->TexCoord2fv(q->lowerRight); gl->Vertex2f(xm, y0);
gl->End();
gl->Disable(CVOpenGLTextureGetTarget(p->texture));
}
static void flip_page(struct vo *vo)
{
struct priv *p = vo->priv;
p->mpglctx->swapGlBuffers(p->mpglctx);
p->mpglctx->gl->Clear(GL_COLOR_BUFFER_BIT);
}
static uint32_t draw_image(struct vo *vo, mp_image_t *mpi)
{
struct priv *p = vo->priv;
CVReturn error;
if (!p->textureCache || !p->pixelBuffer) {
error = CVOpenGLTextureCacheCreate(NULL, 0, vo_cocoa_cgl_context(vo),
vo_cocoa_cgl_pixel_format(vo), 0, &p->textureCache);
if(error != kCVReturnSuccess)
mp_msg(MSGT_VO, MSGL_ERR,"[vo_corevideo] Failed to create OpenGL"
" texture Cache(%d)\n", error);
error = CVPixelBufferCreateWithBytes(NULL, mpi->width, mpi->height,
p->pixelFormat, mpi->planes[0], mpi->width * mpi->bpp / 8,
NULL, NULL, NULL, &p->pixelBuffer);
if(error != kCVReturnSuccess)
mp_msg(MSGT_VO, MSGL_ERR,"[vo_corevideo] Failed to create Pixel"
"Buffer(%d)\n", error);
}
do_render(vo);
return VO_TRUE;
}
static int query_format(struct vo *vo, uint32_t format)
{
struct priv *p = vo->priv;
const int flags = VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW |
VFCAP_OSD | VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN |
VOCAP_NOSLICES;
switch (format) {
case IMGFMT_YUY2:
p->pixelFormat = kYUVSPixelFormat;
return flags;
case IMGFMT_RGB24:
p->pixelFormat = k24RGBPixelFormat;
return flags;
case IMGFMT_ARGB:
p->pixelFormat = k32ARGBPixelFormat;
return flags;
case IMGFMT_BGRA:
p->pixelFormat = k32BGRAPixelFormat;
return flags;
}
return 0;
}
static void uninit(struct vo *vo)
{
struct priv *p = vo->priv;
mpgl_uninit(p->mpglctx);
release_cv_entities(vo);
}
static int preinit(struct vo *vo, const char *arg)
{
struct priv *p = vo->priv;
*p = (struct priv) {
.mpglctx = mpgl_init(GLTYPE_COCOA, vo),
.colorspace = MP_CSP_DETAILS_DEFAULTS,
.quad = talloc_ptrtype(p, p->quad),
.osd = talloc_ptrtype(p, p->osd),
};
*p->osd = (struct osd_p) {
.tex_cnt = 0,
};
return 0;
}
static CFStringRef get_cv_csp_matrix(struct vo *vo)
{
struct priv *p = vo->priv;
switch (p->colorspace.format) {
case MP_CSP_BT_601:
return kCVImageBufferYCbCrMatrix_ITU_R_601_4;
case MP_CSP_BT_709:
return kCVImageBufferYCbCrMatrix_ITU_R_709_2;
case MP_CSP_SMPTE_240M:
return kCVImageBufferYCbCrMatrix_SMPTE_240M_1995;
}
return kCVImageBufferYCbCrMatrix_ITU_R_601_4;
}
static void set_yuv_colorspace(struct vo *vo)
{
struct priv *p = vo->priv;
CVBufferSetAttachment(p->pixelBuffer,
kCVImageBufferYCbCrMatrixKey, get_cv_csp_matrix(vo),
kCVAttachmentMode_ShouldPropagate);
vo->want_redraw = true;
}
static int control(struct vo *vo, uint32_t request, void *data)
{
struct priv *p = vo->priv;
switch (request) {
case VOCTRL_DRAW_IMAGE:
return draw_image(vo, data);
case VOCTRL_QUERY_FORMAT:
return query_format(vo, *(uint32_t*)data);
case VOCTRL_ONTOP:
p->mpglctx->ontop(vo);
return VO_TRUE;
case VOCTRL_PAUSE:
if (!p->mpglctx->pause)
break;
p->mpglctx->pause(vo);
return VO_TRUE;
case VOCTRL_RESUME:
if (!p->mpglctx->resume)
break;
p->mpglctx->resume(vo);
return VO_TRUE;
case VOCTRL_FULLSCREEN:
p->mpglctx->fullscreen(vo);
resize(vo, vo->dwidth, vo->dheight);
return VO_TRUE;
case VOCTRL_GET_PANSCAN:
return VO_TRUE;
case VOCTRL_SET_PANSCAN:
resize(vo, vo->dwidth, vo->dheight);
return VO_TRUE;
case VOCTRL_UPDATE_SCREENINFO:
p->mpglctx->update_xinerama_info(vo);
return VO_TRUE;
case VOCTRL_REDRAW_FRAME:
do_render(vo);
return VO_TRUE;
case VOCTRL_SET_YUV_COLORSPACE:
p->colorspace.format = ((struct mp_csp_details *)data)->format;
set_yuv_colorspace(vo);
return VO_TRUE;
case VOCTRL_GET_YUV_COLORSPACE:
*(struct mp_csp_details *)data = p->colorspace;
return VO_TRUE;
}
return VO_NOTIMPL;
}
const struct vo_driver video_out_corevideo = {
.is_new = true,
.info = &(const vo_info_t) {
"Mac OS X Core Video",
"corevideo",
"Nicolas Plourde <nicolas.plourde@gmail.com> and others",
""
},
.preinit = preinit,
.config = config,
.control = control,
.draw_osd = draw_osd,
.flip_page = flip_page,
.check_events = check_events,
.uninit = uninit,
.priv_size = sizeof(struct priv),
};
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