diff options
Diffstat (limited to 'video/out/hwdec/dmabuf_interop_gl.c')
| -rw-r--r-- | video/out/hwdec/dmabuf_interop_gl.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/video/out/hwdec/dmabuf_interop_gl.c b/video/out/hwdec/dmabuf_interop_gl.c new file mode 100644 index 0000000000..0edd43d370 --- /dev/null +++ b/video/out/hwdec/dmabuf_interop_gl.c @@ -0,0 +1,253 @@ +/* + * 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 "dmabuf_interop.h" + +#include <EGL/egl.h> +#include "video/out/opengl/ra_gl.h" + +typedef void* GLeglImageOES; +typedef void *EGLImageKHR; + +#ifndef DRM_FORMAT_MOD_INVALID +#define DRM_FORMAT_MOD_INVALID ((UINT64_C(1) << 56) - 1) +#endif + +// 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 +#define EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT 0x3443 +#define EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT 0x3444 +#define EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT 0x3445 +#define EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT 0x3446 +#define EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT 0x3447 +#define EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT 0x3448 +#define EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT 0x3449 +#define EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT 0x344A + +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; + + *p = (struct vaapi_gl_mapper_priv) { + // EGL_KHR_image_base + .CreateImageKHR = (void *)eglGetProcAddress("eglCreateImageKHR"), + .DestroyImageKHR = (void *)eglGetProcAddress("eglDestroyImageKHR"), + // GL_OES_EGL_image + .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, ¶ms, + 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 { \ + uint64_t drm_format_modifier = p_mapper->desc.objects[p_mapper->desc.layers[n].object_index[plane]].drm_format_modifier; \ + 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]); \ + if (p_owner->use_modifiers && drm_format_modifier != DRM_FORMAT_MOD_INVALID) { \ + ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _MODIFIER_LO_EXT, drm_format_modifier & 0xfffffffful); \ + ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _MODIFIER_HI_EXT, drm_format_modifier >> 32); \ + } \ + } while (0) + +static bool vaapi_gl_map(struct ra_hwdec_mapper *mapper, bool probing) +{ + struct priv *p_mapper = mapper->priv; + struct priv_owner *p_owner = mapper->owner->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++) { + if (p_mapper->desc.layers[n].num_planes > 1) { + // Should never happen because we request separate layers + MP_ERR(mapper, "Multi-plane VA surfaces are not supported\n"); + return false; + } + + int attribs[48] = {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]) { + mp_msg(mapper->log, p_owner->probing_formats ? MSGL_DEBUG : MSGL_ERR, + "Failed to import surface in EGL: %u\n", eglGetError()); + 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 dmabuf_interop_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; + + p->use_modifiers = gl_check_extension(exts, "EGL_EXT_image_dma_buf_import_modifiers"); + + 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; +} |