mirror of https://github.com/mpv-player/mpv
264 lines
8.9 KiB
C
264 lines
8.9 KiB
C
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/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "hwdec_vaapi.h"
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include "video/out/opengl/ra_gl.h"
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#ifndef GL_OES_EGL_image
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typedef void* GLeglImageOES;
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#endif
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#ifndef EGL_KHR_image
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typedef void *EGLImageKHR;
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#endif
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#ifndef EGL_LINUX_DMA_BUF_EXT
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#define EGL_LINUX_DMA_BUF_EXT 0x3270
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#define EGL_LINUX_DRM_FOURCC_EXT 0x3271
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#define EGL_DMA_BUF_PLANE0_FD_EXT 0x3272
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#define EGL_DMA_BUF_PLANE0_OFFSET_EXT 0x3273
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#define EGL_DMA_BUF_PLANE0_PITCH_EXT 0x3274
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#endif
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struct vaapi_gl_mapper_priv {
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GLuint gl_textures[4];
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EGLImageKHR images[4];
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EGLImageKHR (EGLAPIENTRY *CreateImageKHR)(EGLDisplay, EGLContext,
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EGLenum, EGLClientBuffer,
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const EGLint *);
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EGLBoolean (EGLAPIENTRY *DestroyImageKHR)(EGLDisplay, EGLImageKHR);
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void (EGLAPIENTRY *EGLImageTargetTexture2DOES)(GLenum, GLeglImageOES);
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};
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static bool vaapi_gl_mapper_init(struct ra_hwdec_mapper *mapper,
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const struct ra_imgfmt_desc *desc)
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{
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struct priv *p_mapper = mapper->priv;
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struct vaapi_gl_mapper_priv *p = talloc_ptrtype(NULL, p);
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p_mapper->interop_mapper_priv = p;
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// EGL_KHR_image_base
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p->CreateImageKHR = (void *)eglGetProcAddress("eglCreateImageKHR");
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p->DestroyImageKHR = (void *)eglGetProcAddress("eglDestroyImageKHR");
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// GL_OES_EGL_image
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p->EGLImageTargetTexture2DOES =
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(void *)eglGetProcAddress("glEGLImageTargetTexture2DOES");
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if (!p->CreateImageKHR || !p->DestroyImageKHR ||
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!p->EGLImageTargetTexture2DOES)
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return false;
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GL *gl = ra_gl_get(mapper->ra);
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gl->GenTextures(4, p->gl_textures);
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for (int n = 0; n < desc->num_planes; n++) {
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gl->BindTexture(GL_TEXTURE_2D, p->gl_textures[n]);
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gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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gl->BindTexture(GL_TEXTURE_2D, 0);
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struct ra_tex_params params = {
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.dimensions = 2,
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.w = mp_image_plane_w(&p_mapper->layout, n),
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.h = mp_image_plane_h(&p_mapper->layout, n),
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.d = 1,
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.format = desc->planes[n],
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.render_src = true,
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.src_linear = true,
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};
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if (params.format->ctype != RA_CTYPE_UNORM)
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return false;
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p_mapper->tex[n] = ra_create_wrapped_tex(mapper->ra, ¶ms,
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p->gl_textures[n]);
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if (!p_mapper->tex[n])
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return false;
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}
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return true;
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}
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static void vaapi_gl_mapper_uninit(const struct ra_hwdec_mapper *mapper)
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{
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struct priv *p_mapper = mapper->priv;
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struct vaapi_gl_mapper_priv *p = p_mapper->interop_mapper_priv;
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if (p) {
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GL *gl = ra_gl_get(mapper->ra);
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gl->DeleteTextures(4, p->gl_textures);
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for (int n = 0; n < 4; n++) {
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p->gl_textures[n] = 0;
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ra_tex_free(mapper->ra, &p_mapper->tex[n]);
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}
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talloc_free(p);
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p_mapper->interop_mapper_priv = NULL;
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}
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}
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#define ADD_ATTRIB(name, value) \
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do { \
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assert(num_attribs + 3 < MP_ARRAY_SIZE(attribs)); \
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attribs[num_attribs++] = (name); \
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attribs[num_attribs++] = (value); \
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attribs[num_attribs] = EGL_NONE; \
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} while(0)
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#define ADD_PLANE_ATTRIBS(plane) do { \
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ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _FD_EXT, \
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p_mapper->desc.objects[p_mapper->desc.layers[n].object_index[plane]].fd); \
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ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _OFFSET_EXT, \
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p_mapper->desc.layers[n].offset[plane]); \
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ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _PITCH_EXT, \
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p_mapper->desc.layers[n].pitch[plane]); \
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} while (0)
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static bool vaapi_gl_map(struct ra_hwdec_mapper *mapper)
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{
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#if VA_CHECK_VERSION(1, 1, 0)
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struct priv *p_mapper = mapper->priv;
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struct vaapi_gl_mapper_priv *p = p_mapper->interop_mapper_priv;
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GL *gl = ra_gl_get(mapper->ra);
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for (int n = 0; n < p_mapper->num_planes; n++) {
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int attribs[20] = {EGL_NONE};
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int num_attribs = 0;
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ADD_ATTRIB(EGL_LINUX_DRM_FOURCC_EXT, p_mapper->desc.layers[n].drm_format);
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ADD_ATTRIB(EGL_WIDTH, p_mapper->tex[n]->params.w);
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ADD_ATTRIB(EGL_HEIGHT, p_mapper->tex[n]->params.h);
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ADD_PLANE_ATTRIBS(0);
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if (p_mapper->desc.layers[n].num_planes > 1)
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ADD_PLANE_ATTRIBS(1);
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if (p_mapper->desc.layers[n].num_planes > 2)
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ADD_PLANE_ATTRIBS(2);
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if (p_mapper->desc.layers[n].num_planes > 3)
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ADD_PLANE_ATTRIBS(3);
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p->images[n] = p->CreateImageKHR(eglGetCurrentDisplay(),
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EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attribs);
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if (!p->images[n])
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return false;
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gl->BindTexture(GL_TEXTURE_2D, p->gl_textures[n]);
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p->EGLImageTargetTexture2DOES(GL_TEXTURE_2D, p->images[n]);
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mapper->tex[n] = p_mapper->tex[n];
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}
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gl->BindTexture(GL_TEXTURE_2D, 0);
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#endif
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return true;
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}
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static bool vaapi_gl_map_legacy(struct ra_hwdec_mapper *mapper,
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const VABufferInfo *buffer_info,
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const int *drm_fmts) {
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struct priv *p_mapper = mapper->priv;
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struct vaapi_gl_mapper_priv *p = p_mapper->interop_mapper_priv;
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GL *gl = ra_gl_get(mapper->ra);
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VAImage *va_image = &p_mapper->current_image;
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for (int n = 0; n < p_mapper->num_planes; n++) {
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int attribs[20] = {EGL_NONE};
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int num_attribs = 0;
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const struct ra_format *fmt = p_mapper->tex[n]->params.format;
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int n_comp = fmt->num_components;
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int comp_s = fmt->component_size[n] / 8;
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if (n_comp < 1 || n_comp > 3 || comp_s < 1 || comp_s > 2)
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return false;
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int drm_fmt = drm_fmts[n_comp - 1 + (comp_s - 1) * 4];
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if (!drm_fmt)
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return false;
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ADD_ATTRIB(EGL_LINUX_DRM_FOURCC_EXT, drm_fmt);
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ADD_ATTRIB(EGL_WIDTH, p_mapper->tex[n]->params.w);
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ADD_ATTRIB(EGL_HEIGHT, p_mapper->tex[n]->params.h);
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ADD_ATTRIB(EGL_DMA_BUF_PLANE0_FD_EXT, buffer_info->handle);
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ADD_ATTRIB(EGL_DMA_BUF_PLANE0_OFFSET_EXT, va_image->offsets[n]);
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ADD_ATTRIB(EGL_DMA_BUF_PLANE0_PITCH_EXT, va_image->pitches[n]);
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p->images[n] = p->CreateImageKHR(eglGetCurrentDisplay(),
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EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attribs);
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if (!p->images[n])
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return false;
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gl->BindTexture(GL_TEXTURE_2D, p->gl_textures[n]);
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p->EGLImageTargetTexture2DOES(GL_TEXTURE_2D, p->images[n]);
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mapper->tex[n] = p_mapper->tex[n];
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}
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gl->BindTexture(GL_TEXTURE_2D, 0);
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return true;
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}
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static void vaapi_gl_unmap(struct ra_hwdec_mapper *mapper)
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{
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struct priv *p_mapper = mapper->priv;
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struct vaapi_gl_mapper_priv *p = p_mapper->interop_mapper_priv;
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if (p) {
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for (int n = 0; n < 4; n++) {
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if (p->images[n])
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p->DestroyImageKHR(eglGetCurrentDisplay(), p->images[n]);
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p->images[n] = 0;
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}
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}
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}
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bool vaapi_gl_init(const struct ra_hwdec *hw)
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{
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struct priv_owner *p = hw->priv;
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if (!ra_is_gl(hw->ra)) {
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// This is not an OpenGL RA.
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return false;
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}
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if (!eglGetCurrentContext())
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return false;
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const char *exts = eglQueryString(eglGetCurrentDisplay(), EGL_EXTENSIONS);
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if (!exts)
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return false;
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GL *gl = ra_gl_get(hw->ra);
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if (!strstr(exts, "EXT_image_dma_buf_import") ||
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!strstr(exts, "EGL_KHR_image_base") ||
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!strstr(gl->extensions, "GL_OES_EGL_image") ||
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!(gl->mpgl_caps & MPGL_CAP_TEX_RG))
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return false;
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MP_VERBOSE(hw, "using VAAPI EGL interop\n");
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p->interop_init = vaapi_gl_mapper_init;
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p->interop_uninit = vaapi_gl_mapper_uninit;
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p->interop_map = vaapi_gl_map;
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p->interop_map_legacy = vaapi_gl_map_legacy;
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p->interop_unmap = vaapi_gl_unmap;
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return true;
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}
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