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mpv/video/out/vo_corevideo.c

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/*
* CoreVideo video output driver
* Copyright (c) 2005 Nicolas Plourde <nicolasplourde@gmail.com>
* Copyright (c) 2012-2013 Stefano Pigozzi <stefano.pigozzi@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.
*/
#include "config.h"
#include <QuartzCore/QuartzCore.h>
#if HAVE_VDA_HWACCEL
#include <IOSurface/IOSurface.h>
#include <OpenGL/CGLIOSurface.h>
#endif
#include <assert.h>
#include "talloc.h"
#include "video/out/vo.h"
#include "sub/osd.h"
#include "options/m_option.h"
#include "video/csputils.h"
#include "video/vfcap.h"
#include "video/mp_image.h"
#include "gl_common.h"
#include "gl_osd.h"
#include "cocoa_common.h"
struct quad {
GLfloat lowerLeft[2];
GLfloat lowerRight[2];
GLfloat upperRight[2];
GLfloat upperLeft[2];
};
struct cv_priv {
CVPixelBufferRef pbuf;
CVOpenGLTextureCacheRef texture_cache;
CVOpenGLTextureRef texture;
OSType pixfmt;
};
struct dr_priv {
CVPixelBufferRef pbuf;
bool texture_allocated;
GLuint texture;
GLuint texture_target;
};
struct cv_functions {
void (*init)(struct vo *vo);
void (*uninit)(struct vo *vo);
void (*prepare_texture)(struct vo *vo, struct mp_image *mpi);
void (*bind_texture)(struct vo *vo);
void (*unbind_texture)(struct vo *vo);
mp_image_t *(*get_screenshot)(struct vo *vo);
void (*get_colorspace)(struct vo *vo, struct mp_image_params *p);
};
struct priv {
MPGLContext *mpglctx;
unsigned int image_width;
unsigned int image_height;
struct mp_rect src_rect;
struct mp_rect dst_rect;
struct mp_osd_res osd_res;
// state for normal CoreVideo rendering path: uploads mp_image data as
// OpenGL textures.
struct cv_priv cv;
// state for IOSurface based direct rendering path: accesses the IOSurface
// wrapped by the CVPixelBuffer returned by VDADecoder and directly
// renders it to the screen.
struct dr_priv dr;
struct quad *quad;
struct mpgl_osd *osd;
double vo_pts;
// functions to to deal with the the OpenGL texture for containing the
// video frame (behaviour changes depending on the rendering path).
struct cv_functions fns;
};
static void resize(struct vo *vo)
{
struct priv *p = vo->priv;
GL *gl = p->mpglctx->gl;
gl->Viewport(0, 0, vo->dwidth, vo->dheight);
gl->MatrixMode(GL_MODELVIEW);
gl->LoadIdentity();
gl->Ortho(0, vo->dwidth, vo->dheight, 0, -1, 1);
vo_get_src_dst_rects(vo, &p->src_rect, &p->dst_rect, &p->osd_res);
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;
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);
if (!p->osd)
p->osd = mpgl_osd_init(gl, vo->log, vo->osd);
resize(vo);
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;
}
// map x/y (in range 0..1) to the video texture, and emit OpenGL vertexes
static void video_vertex(struct vo *vo, float x, float y)
{
struct priv *p = vo->priv;
struct quad *q = p->quad;
GL *gl = p->mpglctx->gl;
double tx0 = q->upperLeft[0];
double ty0 = q->upperLeft[1];
double tw = q->lowerRight[0] - tx0;
double th = q->lowerRight[1] - ty0;
double sx0 = p->src_rect.x0 / (double)p->image_width;
double sy0 = p->src_rect.y0 / (double)p->image_height;
double sw = (p->src_rect.x1 - p->src_rect.x0) / (double)p->image_width;
double sh = (p->src_rect.y1 - p->src_rect.y0) / (double)p->image_height;
gl->TexCoord2f(tx0 + (sx0 + x * sw) * tw,
ty0 + (sy0 + y * sh) * th);
gl->Vertex2f(p->dst_rect.x1 * x + p->dst_rect.x0 * (1 - x),
p->dst_rect.y1 * y + p->dst_rect.y0 * (1 - y));
}
static void do_render(struct vo *vo)
{
struct priv *p = vo->priv;
GL *gl = p->mpglctx->gl;
p->fns.bind_texture(vo);
gl->Begin(GL_QUADS);
video_vertex(vo, 0, 0);
video_vertex(vo, 0, 1);
video_vertex(vo, 1, 1);
video_vertex(vo, 1, 0);
gl->End();
p->fns.unbind_texture(vo);
mpgl_osd_draw_legacy(p->osd, p->vo_pts, p->osd_res);
}
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 void draw_image(struct vo *vo, struct mp_image *mpi)
{
struct priv *p = vo->priv;
p->vo_pts = mpi->pts;
p->fns.prepare_texture(vo, mpi);
do_render(vo);
talloc_free(mpi);
}
static void uninit(struct vo *vo)
{
struct priv *p = vo->priv;
mpgl_osd_destroy(p->osd);
p->fns.uninit(vo);
mpgl_uninit(p->mpglctx);
}
static int preinit(struct vo *vo)
{
struct priv *p = vo->priv;
*p = (struct priv) {
.mpglctx = mpgl_init(vo, "cocoa"),
.quad = talloc_ptrtype(p, p->quad),
};
return 0;
}
static CFStringRef get_cv_csp_matrix(enum mp_csp format)
{
switch (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;
default:
return NULL;
}
}
static void apply_csp(struct vo *vo, CVPixelBufferRef pbuf)
{
if (!vo->params)
return;
CFStringRef matrix = get_cv_csp_matrix(vo->params->colorspace);
if (!matrix)
return;
CVPixelBufferLockBaseAddress(pbuf, 0);
CVBufferSetAttachment(pbuf, kCVImageBufferYCbCrMatrixKey, matrix,
kCVAttachmentMode_ShouldPropagate);
CVPixelBufferUnlockBaseAddress(pbuf, 0);
}
static void get_colorspace(struct vo *vo, struct mp_image_params *p)
{
if (vo->params && get_cv_csp_matrix(vo->params->colorspace))
p->colorspace = vo->params->colorspace;
}
static int get_image_fmt(struct vo *vo, CVPixelBufferRef pbuf)
{
OSType pixfmt = CVPixelBufferGetPixelFormatType(pbuf);
switch (pixfmt) {
case kYUVSPixelFormat: return IMGFMT_YUYV;
case k2vuyPixelFormat: return IMGFMT_UYVY;
case k24RGBPixelFormat: return IMGFMT_RGB24;
case k32ARGBPixelFormat: return IMGFMT_ARGB;
case k32BGRAPixelFormat: return IMGFMT_BGRA;
}
MP_ERR(vo, "Failed to convert pixel format. Please contact the "
"developers. PixelFormat: %d\n", pixfmt);
return -1;
}
static mp_image_t *get_screenshot(struct vo *vo, CVPixelBufferRef pbuf)
{
int img_fmt = get_image_fmt(vo, pbuf);
if (img_fmt < 0 || !vo->params) return NULL;
CVPixelBufferLockBaseAddress(pbuf, 0);
void *base = CVPixelBufferGetBaseAddress(pbuf);
size_t width = CVPixelBufferGetWidth(pbuf);
size_t height = CVPixelBufferGetHeight(pbuf);
size_t stride = CVPixelBufferGetBytesPerRow(pbuf);
struct mp_image img = {0};
mp_image_setfmt(&img, img_fmt);
mp_image_set_size(&img, width, height);
img.planes[0] = base;
img.stride[0] = stride;
struct mp_image *image = mp_image_new_copy(&img);
if (image)
mp_image_set_attributes(image, vo->params);
CVPixelBufferUnlockBaseAddress(pbuf, 0);
return image;
}
static int control(struct vo *vo, uint32_t request, void *data)
{
struct priv *p = vo->priv;
switch (request) {
case VOCTRL_GET_PANSCAN:
return VO_TRUE;
case VOCTRL_SET_PANSCAN:
resize(vo);
return VO_TRUE;
case VOCTRL_REDRAW_FRAME:
do_render(vo);
return VO_TRUE;
case VOCTRL_GET_COLORSPACE:
p->fns.get_colorspace(vo, data);
return VO_TRUE;
case VOCTRL_SCREENSHOT: {
struct voctrl_screenshot_args *args = data;
if (args->full_window)
args->out_image = glGetWindowScreenshot(p->mpglctx->gl);
else
args->out_image = p->fns.get_screenshot(vo);
return VO_TRUE;
}
}
int events = 0;
int r = p->mpglctx->vo_control(vo, &events, request, data);
if (events & VO_EVENT_RESIZE)
resize(vo);
return r;
}
static void dummy_cb(struct vo *vo) { }
static void cv_uninit(struct vo *vo)
{
struct priv *p = vo->priv;
CVPixelBufferRelease(p->cv.pbuf);
p->cv.pbuf = NULL;
CVOpenGLTextureRelease(p->cv.texture);
p->cv.texture = NULL;
CVOpenGLTextureCacheRelease(p->cv.texture_cache);
p->cv.texture_cache = NULL;
}
static void cv_bind_texture(struct vo *vo)
{
struct priv *p = vo->priv;
GL *gl = p->mpglctx->gl;
gl->Enable(CVOpenGLTextureGetTarget(p->cv.texture));
gl->BindTexture(CVOpenGLTextureGetTarget(p->cv.texture),
CVOpenGLTextureGetName(p->cv.texture));
}
static void cv_unbind_texture(struct vo *vo)
{
struct priv *p = vo->priv;
GL *gl = p->mpglctx->gl;
gl->Disable(CVOpenGLTextureGetTarget(p->cv.texture));
}
static void upload_opengl_texture(struct vo *vo, struct mp_image *mpi)
{
struct priv *p = vo->priv;
if (!p->cv.texture_cache || !p->cv.pbuf) {
CVReturn error;
error = CVOpenGLTextureCacheCreate(NULL, 0, vo_cocoa_cgl_context(vo),
vo_cocoa_cgl_pixel_format(vo), 0, &p->cv.texture_cache);
if(error != kCVReturnSuccess)
MP_ERR(vo, "Failed to create OpenGL texture Cache(%d)\n", error);
error = CVPixelBufferCreateWithBytes(NULL, mpi->w, mpi->h,
p->cv.pixfmt, mpi->planes[0], mpi->stride[0],
NULL, NULL, NULL, &p->cv.pbuf);
if(error != kCVReturnSuccess)
MP_ERR(vo, "Failed to create PixelBuffer(%d)\n", error);
apply_csp(vo, p->cv.pbuf);
}
struct quad *q = p->quad;
CVReturn error;
CVOpenGLTextureRelease(p->cv.texture);
error = CVOpenGLTextureCacheCreateTextureFromImage(NULL,
p->cv.texture_cache, p->cv.pbuf, 0, &p->cv.texture);
if(error != kCVReturnSuccess)
MP_ERR(vo, "Failed to create OpenGL texture(%d)\n", error);
CVOpenGLTextureGetCleanTexCoords(p->cv.texture,
q->lowerLeft, q->lowerRight, q->upperRight, q->upperLeft);
}
static mp_image_t *cv_get_screenshot(struct vo *vo)
{
struct priv *p = vo->priv;
return get_screenshot(vo, p->cv.pbuf);
}
static struct cv_functions cv_functions = {
.init = dummy_cb,
.uninit = cv_uninit,
.bind_texture = cv_bind_texture,
.unbind_texture = cv_unbind_texture,
.prepare_texture = upload_opengl_texture,
.get_screenshot = cv_get_screenshot,
.get_colorspace = get_colorspace,
};
#if HAVE_VDA_HWACCEL
static void iosurface_init(struct vo *vo)
{
struct priv *p = vo->priv;
GL *gl = p->mpglctx->gl;
p->dr.texture_target = GL_TEXTURE_RECTANGLE_ARB;
p->fns.bind_texture(vo);
gl->GenTextures(1, &p->dr.texture);
p->fns.unbind_texture(vo);
p->dr.texture_allocated = true;
}
static void iosurface_uninit(struct vo *vo)
{
struct priv *p = vo->priv;
GL *gl = p->mpglctx->gl;
if (p->dr.texture_allocated) {
gl->DeleteTextures(1, &p->dr.texture);
p->dr.texture_allocated = false;
}
}
static void iosurface_bind_texture(struct vo *vo)
{
struct priv *p = vo->priv;
GL *gl = p->mpglctx->gl;
gl->Enable(p->dr.texture_target);
gl->BindTexture(p->dr.texture_target, p->dr.texture);
gl->MatrixMode(GL_TEXTURE);
gl->LoadIdentity();
gl->TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
}
static void iosurface_unbind_texture(struct vo *vo)
{
struct priv *p = vo->priv;
GL *gl = p->mpglctx->gl;
gl->BindTexture(p->dr.texture_target, 0);
gl->Disable(p->dr.texture_target);
}
static void extract_texture_from_iosurface(struct vo *vo, struct mp_image *mpi)
{
struct priv *p = vo->priv;
CVPixelBufferRelease(p->dr.pbuf);
p->dr.pbuf = (CVPixelBufferRef)mpi->planes[3];
CVPixelBufferRetain(p->dr.pbuf);
IOSurfaceRef surface = CVPixelBufferGetIOSurface(p->dr.pbuf);
MP_DBG(vo, "iosurface id: %d\n", IOSurfaceGetID(surface));
p->fns.bind_texture(vo);
CGLError err = CGLTexImageIOSurface2D(
vo_cocoa_cgl_context(vo), p->dr.texture_target, GL_RGB8,
p->image_width, p->image_height,
GL_YCBCR_422_APPLE, GL_UNSIGNED_SHORT_8_8_APPLE, surface, 0);
if (err != kCGLNoError)
MP_ERR(vo, "error creating IOSurface texture: %s (%x)\n",
CGLErrorString(err), glGetError());
p->fns.unbind_texture(vo);
// video_vertex flips the coordinates.. so feed in a flipped quad
*p->quad = (struct quad) {
.lowerRight = { p->image_width, p->image_height },
.upperLeft = { 0.0, 0.0 },
};
}
static mp_image_t *iosurface_get_screenshot(struct vo *vo)
{
struct priv *p = vo->priv;
return get_screenshot(vo, p->dr.pbuf);
}
static void iosurface_get_colorspace(struct vo *vo, struct mp_image_params *p)
{
p->colorspace = MP_CSP_BT_601;
}
static struct cv_functions iosurface_functions = {
.init = iosurface_init,
.uninit = iosurface_uninit,
.bind_texture = iosurface_bind_texture,
.unbind_texture = iosurface_unbind_texture,
.prepare_texture = extract_texture_from_iosurface,
.get_screenshot = iosurface_get_screenshot,
.get_colorspace = iosurface_get_colorspace,
};
#endif /* HAVE_VDA_HWACCEL */
struct fmt_entry {
enum mp_imgfmt imgfmt;
OSType cvfmt;
struct cv_functions *funs;
};
static const struct fmt_entry supported_fmts[] = {
#if HAVE_VDA_HWACCEL
{ IMGFMT_VDA, 0, &iosurface_functions },
#endif
{ IMGFMT_YUYV, kYUVSPixelFormat, &cv_functions },
{ IMGFMT_UYVY, k2vuyPixelFormat, &cv_functions },
{ IMGFMT_RGB24, k24RGBPixelFormat, &cv_functions },
{ IMGFMT_BGRA, k32BGRAPixelFormat, &cv_functions },
{ IMGFMT_NONE, 0, NULL }
};
static int reconfig(struct vo *vo, struct mp_image_params *params, int flags)
{
struct priv *p = vo->priv;
if (p->fns.uninit)
p->fns.uninit(vo);
for (int i = 0; supported_fmts[i].imgfmt; i++)
if (supported_fmts[i].imgfmt == params->imgfmt) {
p->fns = *supported_fmts[i].funs;
p->cv.pixfmt = supported_fmts[i].cvfmt;
break;
}
p->image_width = params->w;
p->image_height = params->h;
int mpgl_caps = MPGL_CAP_GL_LEGACY;
if (!mpgl_config_window(p->mpglctx, mpgl_caps, flags))
return -1;
init_gl(vo, vo->dwidth, vo->dheight);
p->fns.init(vo);
return 0;
}
static int query_format(struct vo *vo, uint32_t format)
{
for (int i = 0; supported_fmts[i].imgfmt; i++)
if (supported_fmts[i].imgfmt == format)
return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
return 0;
}
const struct vo_driver video_out_corevideo = {
.name = "corevideo",
.description = "Mac OS X Core Video",
.preinit = preinit,
.query_format = query_format,
.reconfig = reconfig,
.control = control,
.draw_image = draw_image,
.flip_page = flip_page,
.uninit = uninit,
.priv_size = sizeof(struct priv),
};
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