mpv/video/out/opengl/hwdec_vaglx.c

227 lines
6.6 KiB
C

/*
* This file is part of mpv.
*
* Parts based on the MPlayer VA-API patch (see vo_vaapi.c).
*
* mpv 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.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stddef.h>
#include <string.h>
#include <assert.h>
#include <GL/glx.h>
#include <va/va_x11.h>
#include "video/out/x11_common.h"
#include "ra_gl.h"
#include "hwdec.h"
#include "video/vaapi.h"
struct priv_owner {
struct mp_vaapi_ctx *ctx;
VADisplay *display;
Display *xdisplay;
GLXFBConfig fbc;
};
struct priv {
GLuint gl_texture;
Pixmap pixmap;
GLXPixmap glxpixmap;
void (*glXBindTexImage)(Display *dpy, GLXDrawable draw, int buffer, int *a);
void (*glXReleaseTexImage)(Display *dpy, GLXDrawable draw, int buffer);
};
static void uninit(struct ra_hwdec *hw)
{
struct priv_owner *p = hw->priv;
if (p->ctx)
hwdec_devices_remove(hw->devs, &p->ctx->hwctx);
va_destroy(p->ctx);
}
static int init(struct ra_hwdec *hw)
{
Display *x11disp = glXGetCurrentDisplay();
if (!x11disp || !ra_is_gl(hw->ra))
return -1;
int x11scr = DefaultScreen(x11disp);
struct priv_owner *p = hw->priv;
p->xdisplay = x11disp;
const char *glxext = glXQueryExtensionsString(x11disp, x11scr);
if (!glxext || !strstr(glxext, "GLX_EXT_texture_from_pixmap"))
return -1;
p->display = vaGetDisplay(x11disp);
if (!p->display)
return -1;
p->ctx = va_initialize(p->display, hw->log, true);
if (!p->ctx) {
vaTerminate(p->display);
return -1;
}
int attribs[] = {
GLX_BIND_TO_TEXTURE_RGBA_EXT, True,
GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT,
GLX_BIND_TO_TEXTURE_TARGETS_EXT, GLX_TEXTURE_2D_BIT_EXT,
GLX_Y_INVERTED_EXT, True,
GLX_DOUBLEBUFFER, False,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_ALPHA_SIZE, 0,
None
};
int fbcount;
GLXFBConfig *fbc = glXChooseFBConfig(x11disp, x11scr, attribs, &fbcount);
if (fbcount)
p->fbc = fbc[0];
if (fbc)
XFree(fbc);
if (!fbcount) {
MP_VERBOSE(hw, "No texture-from-pixmap support.\n");
return -1;
}
p->ctx->hwctx.driver_name = hw->driver->name;
hwdec_devices_add(hw->devs, &p->ctx->hwctx);
return 0;
}
static int mapper_init(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
struct priv *p = mapper->priv;
GL *gl = ra_gl_get(mapper->ra);
Display *xdisplay = p_owner->xdisplay;
p->glXBindTexImage =
(void*)glXGetProcAddressARB((void*)"glXBindTexImageEXT");
p->glXReleaseTexImage =
(void*)glXGetProcAddressARB((void*)"glXReleaseTexImageEXT");
if (!p->glXBindTexImage || !p->glXReleaseTexImage)
return -1;
gl->GenTextures(1, &p->gl_texture);
gl->BindTexture(GL_TEXTURE_2D, p->gl_texture);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
gl->BindTexture(GL_TEXTURE_2D, 0);
p->pixmap = XCreatePixmap(xdisplay,
RootWindow(xdisplay, DefaultScreen(xdisplay)),
mapper->src_params.w, mapper->src_params.h, 24);
if (!p->pixmap) {
MP_FATAL(mapper, "could not create pixmap\n");
return -1;
}
int attribs[] = {
GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_2D_EXT,
GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGB_EXT,
GLX_MIPMAP_TEXTURE_EXT, False,
None,
};
p->glxpixmap = glXCreatePixmap(xdisplay, p_owner->fbc, p->pixmap, attribs);
gl->BindTexture(GL_TEXTURE_2D, p->gl_texture);
p->glXBindTexImage(xdisplay, p->glxpixmap, GLX_FRONT_EXT, NULL);
gl->BindTexture(GL_TEXTURE_2D, 0);
struct ra_tex_params params = {
.dimensions = 2,
.w = mapper->src_params.w,
.h = mapper->src_params.h,
.d = 1,
.format = ra_find_unorm_format(mapper->ra, 1, 4), // unsure
.render_src = true,
.src_linear = true,
};
if (!params.format)
return -1;
mapper->tex[0] = ra_create_wrapped_tex(mapper->ra, &params, p->gl_texture);
if (!mapper->tex[0])
return -1;
mapper->dst_params = mapper->src_params;
mapper->dst_params.imgfmt = IMGFMT_RGB0;
mapper->dst_params.hw_subfmt = 0;
return 0;
}
static void mapper_uninit(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
struct priv *p = mapper->priv;
GL *gl = ra_gl_get(mapper->ra);
Display *xdisplay = p_owner->xdisplay;
if (p->glxpixmap) {
p->glXReleaseTexImage(xdisplay, p->glxpixmap, GLX_FRONT_EXT);
glXDestroyPixmap(xdisplay, p->glxpixmap);
}
p->glxpixmap = 0;
if (p->pixmap)
XFreePixmap(xdisplay, p->pixmap);
p->pixmap = 0;
ra_tex_free(mapper->ra, &mapper->tex[0]);
gl->DeleteTextures(1, &p->gl_texture);
p->gl_texture = 0;
}
static int mapper_map(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
struct priv *p = mapper->priv;
VAStatus status;
struct mp_image *hw_image = mapper->src;
if (!p->pixmap)
return -1;
status = vaPutSurface(p_owner->display, va_surface_id(hw_image), p->pixmap,
0, 0, hw_image->w, hw_image->h,
0, 0, hw_image->w, hw_image->h,
NULL, 0,
va_get_colorspace_flag(hw_image->params.color.space));
CHECK_VA_STATUS(mapper, "vaPutSurface()");
return 0;
}
const struct ra_hwdec_driver ra_hwdec_vaglx = {
.name = "vaapi-glx",
.priv_size = sizeof(struct priv_owner),
.api = HWDEC_VAAPI,
.imgfmts = {IMGFMT_VAAPI, 0},
.testing_only = true,
.init = init,
.uninit = uninit,
.mapper = &(const struct ra_hwdec_mapper_driver){
.priv_size = sizeof(struct priv),
.init = mapper_init,
.uninit = mapper_uninit,
.map = mapper_map,
},
};