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/*
* 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 <assert.h>
#include <GL/glx.h>
#include <va/va_glx.h>
#include "x11_common.h"
#include "gl_common.h"
#include "video/vaapi.h"
#include "video/hwdec.h"
struct priv {
struct mp_log *log;
struct mp_vaapi_ctx *ctx;
VADisplay *display;
GLuint gl_texture;
void *vaglx_surface;
};
static void destroy_texture(struct gl_hwdec *hw)
{
struct priv *p = hw->priv;
VAStatus status;
if (p->vaglx_surface) {
status = vaDestroySurfaceGLX(p->display, p->vaglx_surface);
CHECK_VA_STATUS(p, "vaDestroySurfaceGLX()");
p->vaglx_surface = NULL;
}
glDeleteTextures(1, &p->gl_texture);
p->gl_texture = 0;
}
static void destroy(struct gl_hwdec *hw)
{
struct priv *p = hw->priv;
destroy_texture(hw);
va_destroy(p->ctx);
}
static int create(struct gl_hwdec *hw)
{
if (hw->info->vaapi_ctx)
return -1;
if (!hw->mpgl->vo->x11 || !glXGetCurrentContext())
return -1;
struct priv *p = talloc_zero(hw, struct priv);
hw->priv = p;
p->log = hw->log;
p->display = vaGetDisplayGLX(hw->mpgl->vo->x11->display);
if (!p->display)
return -1;
p->ctx = va_initialize(p->display, p->log);
if (!p->ctx) {
vaTerminate(p->display);
return -1;
}
hw->info->vaapi_ctx = p->ctx;
hw->converted_imgfmt = IMGFMT_RGB0;
return 0;
}
static int reinit(struct gl_hwdec *hw, const struct mp_image_params *params)
{
struct priv *p = hw->priv;
GL *gl = hw->mpgl->gl;
VAStatus status;
destroy_texture(hw);
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->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, params->w, params->h, 0,
GL_RGBA, GL_UNSIGNED_BYTE, NULL);
gl->BindTexture(GL_TEXTURE_2D, 0);
status = vaCreateSurfaceGLX(p->display, GL_TEXTURE_2D,
p->gl_texture, &p->vaglx_surface);
return CHECK_VA_STATUS(p, "vaCreateSurfaceGLX()") ? 0 : -1;
}
static int map_image(struct gl_hwdec *hw, struct mp_image *hw_image,
GLuint *out_textures)
{
struct priv *p = hw->priv;
VAStatus status;
if (!p->vaglx_surface)
return -1;
status = vaCopySurfaceGLX(p->display, p->vaglx_surface,
va_surface_id_in_mp_image(hw_image),
va_get_colorspace_flag(hw_image->colorspace));
if (!CHECK_VA_STATUS(p, "vaCopySurfaceGLX()"))
return -1;
out_textures[0] = p->gl_texture;
return 0;
}
static void unmap_image(struct gl_hwdec *hw)
{
}
const struct gl_hwdec_driver gl_hwdec_vaglx = {
.api_name = "vaapi",
.imgfmt = IMGFMT_VAAPI,
.create = create,
.reinit = reinit,
.map_image = map_image,
.unmap_image = unmap_image,
.destroy = destroy,
};
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