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mpv/video/out/hwdec/hwdec_vaapi_gl.c

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/*
* 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 "config.h"
#include "hwdec_vaapi.h"
#include <EGL/egl.h>
#include "video/out/opengl/ra_gl.h"
typedef void* GLeglImageOES;
typedef void *EGLImageKHR;
// Any EGL_EXT_image_dma_buf_import definitions used in this source file.
#define EGL_LINUX_DMA_BUF_EXT 0x3270
#define EGL_LINUX_DRM_FOURCC_EXT 0x3271
#define EGL_DMA_BUF_PLANE0_FD_EXT 0x3272
#define EGL_DMA_BUF_PLANE0_OFFSET_EXT 0x3273
#define EGL_DMA_BUF_PLANE0_PITCH_EXT 0x3274
#define EGL_DMA_BUF_PLANE1_FD_EXT 0x3275
#define EGL_DMA_BUF_PLANE1_OFFSET_EXT 0x3276
#define EGL_DMA_BUF_PLANE1_PITCH_EXT 0x3277
#define EGL_DMA_BUF_PLANE2_FD_EXT 0x3278
#define EGL_DMA_BUF_PLANE2_OFFSET_EXT 0x3279
#define EGL_DMA_BUF_PLANE2_PITCH_EXT 0x327A
// Any EGL_EXT_image_dma_buf_import definitions used in this source file.
#define EGL_DMA_BUF_PLANE3_FD_EXT 0x3440
#define EGL_DMA_BUF_PLANE3_OFFSET_EXT 0x3441
#define EGL_DMA_BUF_PLANE3_PITCH_EXT 0x3442
struct vaapi_gl_mapper_priv {
GLuint gl_textures[4];
EGLImageKHR images[4];
EGLImageKHR (EGLAPIENTRY *CreateImageKHR)(EGLDisplay, EGLContext,
EGLenum, EGLClientBuffer,
const EGLint *);
EGLBoolean (EGLAPIENTRY *DestroyImageKHR)(EGLDisplay, EGLImageKHR);
void (EGLAPIENTRY *EGLImageTargetTexture2DOES)(GLenum, GLeglImageOES);
};
static bool vaapi_gl_mapper_init(struct ra_hwdec_mapper *mapper,
const struct ra_imgfmt_desc *desc)
{
struct priv *p_mapper = mapper->priv;
struct vaapi_gl_mapper_priv *p = talloc_ptrtype(NULL, p);
p_mapper->interop_mapper_priv = p;
// EGL_KHR_image_base
p->CreateImageKHR = (void *)eglGetProcAddress("eglCreateImageKHR");
p->DestroyImageKHR = (void *)eglGetProcAddress("eglDestroyImageKHR");
// GL_OES_EGL_image
p->EGLImageTargetTexture2DOES =
(void *)eglGetProcAddress("glEGLImageTargetTexture2DOES");
if (!p->CreateImageKHR || !p->DestroyImageKHR ||
!p->EGLImageTargetTexture2DOES)
return false;
GL *gl = ra_gl_get(mapper->ra);
gl->GenTextures(4, p->gl_textures);
for (int n = 0; n < desc->num_planes; n++) {
gl->BindTexture(GL_TEXTURE_2D, p->gl_textures[n]);
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);
struct ra_tex_params params = {
.dimensions = 2,
.w = mp_image_plane_w(&p_mapper->layout, n),
.h = mp_image_plane_h(&p_mapper->layout, n),
.d = 1,
.format = desc->planes[n],
.render_src = true,
.src_linear = true,
};
if (params.format->ctype != RA_CTYPE_UNORM)
return false;
p_mapper->tex[n] = ra_create_wrapped_tex(mapper->ra, &params,
p->gl_textures[n]);
if (!p_mapper->tex[n])
return false;
}
return true;
}
static void vaapi_gl_mapper_uninit(const struct ra_hwdec_mapper *mapper)
{
struct priv *p_mapper = mapper->priv;
struct vaapi_gl_mapper_priv *p = p_mapper->interop_mapper_priv;
if (p) {
GL *gl = ra_gl_get(mapper->ra);
gl->DeleteTextures(4, p->gl_textures);
for (int n = 0; n < 4; n++) {
p->gl_textures[n] = 0;
ra_tex_free(mapper->ra, &p_mapper->tex[n]);
}
talloc_free(p);
p_mapper->interop_mapper_priv = NULL;
}
}
#define ADD_ATTRIB(name, value) \
do { \
assert(num_attribs + 3 < MP_ARRAY_SIZE(attribs)); \
attribs[num_attribs++] = (name); \
attribs[num_attribs++] = (value); \
attribs[num_attribs] = EGL_NONE; \
} while(0)
#define ADD_PLANE_ATTRIBS(plane) do { \
ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _FD_EXT, \
p_mapper->desc.objects[p_mapper->desc.layers[n].object_index[plane]].fd); \
ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _OFFSET_EXT, \
p_mapper->desc.layers[n].offset[plane]); \
ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _PITCH_EXT, \
p_mapper->desc.layers[n].pitch[plane]); \
} while (0)
static bool vaapi_gl_map(struct ra_hwdec_mapper *mapper)
{
struct priv *p_mapper = mapper->priv;
struct vaapi_gl_mapper_priv *p = p_mapper->interop_mapper_priv;
GL *gl = ra_gl_get(mapper->ra);
for (int n = 0; n < p_mapper->num_planes; n++) {
int attribs[20] = {EGL_NONE};
int num_attribs = 0;
ADD_ATTRIB(EGL_LINUX_DRM_FOURCC_EXT, p_mapper->desc.layers[n].drm_format);
ADD_ATTRIB(EGL_WIDTH, p_mapper->tex[n]->params.w);
ADD_ATTRIB(EGL_HEIGHT, p_mapper->tex[n]->params.h);
ADD_PLANE_ATTRIBS(0);
if (p_mapper->desc.layers[n].num_planes > 1)
ADD_PLANE_ATTRIBS(1);
if (p_mapper->desc.layers[n].num_planes > 2)
ADD_PLANE_ATTRIBS(2);
if (p_mapper->desc.layers[n].num_planes > 3)
ADD_PLANE_ATTRIBS(3);
p->images[n] = p->CreateImageKHR(eglGetCurrentDisplay(),
EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attribs);
if (!p->images[n])
return false;
gl->BindTexture(GL_TEXTURE_2D, p->gl_textures[n]);
p->EGLImageTargetTexture2DOES(GL_TEXTURE_2D, p->images[n]);
mapper->tex[n] = p_mapper->tex[n];
}
gl->BindTexture(GL_TEXTURE_2D, 0);
return true;
}
static void vaapi_gl_unmap(struct ra_hwdec_mapper *mapper)
{
struct priv *p_mapper = mapper->priv;
struct vaapi_gl_mapper_priv *p = p_mapper->interop_mapper_priv;
if (p) {
for (int n = 0; n < 4; n++) {
if (p->images[n])
p->DestroyImageKHR(eglGetCurrentDisplay(), p->images[n]);
p->images[n] = 0;
}
}
}
bool vaapi_gl_init(const struct ra_hwdec *hw)
{
struct priv_owner *p = hw->priv;
if (!ra_is_gl(hw->ra)) {
// This is not an OpenGL RA.
return false;
}
if (!eglGetCurrentContext())
return false;
const char *exts = eglQueryString(eglGetCurrentDisplay(), EGL_EXTENSIONS);
if (!exts)
return false;
GL *gl = ra_gl_get(hw->ra);
if (!gl_check_extension(exts, "EGL_EXT_image_dma_buf_import") ||
!gl_check_extension(exts, "EGL_KHR_image_base") ||
!gl_check_extension(gl->extensions, "GL_OES_EGL_image") ||
!(gl->mpgl_caps & MPGL_CAP_TEX_RG))
return false;
MP_VERBOSE(hw, "using VAAPI EGL interop\n");
p->interop_init = vaapi_gl_mapper_init;
p->interop_uninit = vaapi_gl_mapper_uninit;
p->interop_map = vaapi_gl_map;
p->interop_unmap = vaapi_gl_unmap;
return true;
}
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