diff options
Diffstat (limited to 'gst-libs/gst/gl/egl/gsteglimage.c')
| -rw-r--r-- | gst-libs/gst/gl/egl/gsteglimage.c | 531 |
1 files changed, 0 insertions, 531 deletions
diff --git a/gst-libs/gst/gl/egl/gsteglimage.c b/gst-libs/gst/gl/egl/gsteglimage.c deleted file mode 100644 index fdd603807..000000000 --- a/gst-libs/gst/gl/egl/gsteglimage.c +++ /dev/null @@ -1,531 +0,0 @@ -/* - * GStreamer - * Copyright (C) 2012 Collabora Ltd. - * @author: Sebastian Dröge <sebastian.droege@collabora.co.uk> - * Copyright (C) 2014 Julien Isorce <julien.isorce@gmail.com> - * Copyright (C) 2016 Matthew Waters <matthew@centricular.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, - * Boston, MA 02110-1301, USA. - */ - -/** - * SECTION:gsteglimage - * @short_description: EGLImage abstraction - * @title: GstEGLImage - * @see_also: #GstGLMemoryEGL, #GstGLContext - * - * #GstEGLImage represents and holds an #EGLImage handle. - * - * A #GstEGLImage can be created from a dmabuf with gst_egl_image_from_dmabuf() - * or #GstGLMemoryEGL provides a #GstAllocator to allocate #EGLImage's bound to - * and OpenGL texture. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "gsteglimage.h" - -#include <string.h> - -#include <gst/gl/gstglfeature.h> -#include <gst/gl/gstglmemory.h> - -#include "gst/gl/egl/gstegl.h" -#include "gst/gl/egl/gstglcontext_egl.h" -#include "gst/gl/egl/gstgldisplay_egl.h" - -#if GST_GL_HAVE_DMABUF -#include <gst/allocators/gstdmabuf.h> -#include <libdrm/drm_fourcc.h> - -#ifndef DRM_FORMAT_R8 -#define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') -#endif - -#ifndef DRM_FORMAT_RG88 -#define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') -#endif - -#ifndef DRM_FORMAT_GR88 -#define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') -#endif -#endif - -#ifndef EGL_LINUX_DMA_BUF_EXT -#define EGL_LINUX_DMA_BUF_EXT 0x3270 -#endif - -#ifndef EGL_LINUX_DRM_FOURCC_EXT -#define EGL_LINUX_DRM_FOURCC_EXT 0x3271 -#endif - -#ifndef EGL_DMA_BUF_PLANE0_FD_EXT -#define EGL_DMA_BUF_PLANE0_FD_EXT 0x3272 -#endif - -#ifndef EGL_DMA_BUF_PLANE0_OFFSET_EXT -#define EGL_DMA_BUF_PLANE0_OFFSET_EXT 0x3273 -#endif - -#ifndef EGL_DMA_BUF_PLANE0_PITCH_EXT -#define EGL_DMA_BUF_PLANE0_PITCH_EXT 0x3274 -#endif - -GST_DEFINE_MINI_OBJECT_TYPE (GstEGLImage, gst_egl_image); - -#ifndef GST_DISABLE_GST_DEBUG -#define GST_CAT_DEFAULT gst_egl_image_ensure_debug_category() - -static GstDebugCategory * -gst_egl_image_ensure_debug_category (void) -{ - static gsize cat_gonce = 0; - - if (g_once_init_enter (&cat_gonce)) { - GstDebugCategory *cat = NULL; - - GST_DEBUG_CATEGORY_INIT (cat, "gleglimage", 0, "EGLImage wrapper"); - - g_once_init_leave (&cat_gonce, (gsize) cat); - } - - return (GstDebugCategory *) cat_gonce; -} -#endif /* GST_DISABLE_GST_DEBUG */ - -/** - * gst_egl_image_get_image: - * @image: a #GstEGLImage - * - * Returns: the #EGLImageKHR of @image - */ -gpointer -gst_egl_image_get_image (GstEGLImage * image) -{ - g_return_val_if_fail (GST_IS_EGL_IMAGE (image), EGL_NO_IMAGE_KHR); - - return image->image; -} - -static void -_gst_egl_image_free_thread (GstGLContext * context, GstEGLImage * image) -{ - if (image->destroy_notify) - image->destroy_notify (image, image->destroy_data); -} - -static void -_gst_egl_image_free (GstMiniObject * object) -{ - GstEGLImage *image = GST_EGL_IMAGE (object); - - if (image->context) { - gst_gl_context_thread_add (GST_GL_CONTEXT (image->context), - (GstGLContextThreadFunc) _gst_egl_image_free_thread, image); - gst_object_unref (image->context); - } -} - -static GstMiniObject * -_gst_egl_image_copy (GstMiniObject * obj) -{ - return gst_mini_object_ref (obj); -} - -/** - * gst_egl_image_new_wrapped: - * @context: a #GstGLContext (must be an EGL context) - * @image: the image to wrap - * @format: the #GstGLFormat - * @user_data: user data - * @user_data_destroy: called when @user_data is no longer needed - * - * Returns: a new #GstEGLImage wrapping @image - */ -GstEGLImage * -gst_egl_image_new_wrapped (GstGLContext * context, gpointer image, - GstGLFormat format, gpointer user_data, - GstEGLImageDestroyNotify user_data_destroy) -{ - GstEGLImage *img = NULL; - - g_return_val_if_fail (context != NULL, NULL); - g_return_val_if_fail ((gst_gl_context_get_gl_platform (context) & - GST_GL_PLATFORM_EGL) != 0, NULL); - g_return_val_if_fail (image != EGL_NO_IMAGE_KHR, NULL); - - img = g_new0 (GstEGLImage, 1); - gst_mini_object_init (GST_MINI_OBJECT_CAST (img), 0, GST_TYPE_EGL_IMAGE, - (GstMiniObjectCopyFunction) _gst_egl_image_copy, NULL, - (GstMiniObjectFreeFunction) _gst_egl_image_free); - - img->context = gst_object_ref (context); - img->image = image; - img->format = format; - - img->destroy_data = user_data; - img->destroy_notify = user_data_destroy; - - return img; -} - -static EGLImageKHR -_gst_egl_image_create (GstGLContext * context, guint target, - EGLClientBuffer buffer, guintptr * attribs) -{ - EGLDisplay egl_display = EGL_DEFAULT_DISPLAY; - EGLContext egl_context = EGL_NO_CONTEXT; - EGLImageKHR img = EGL_NO_IMAGE_KHR; - GstGLDisplayEGL *display_egl; - gint plat_major, plat_minor; - guint attrib_len = 0; - - gst_gl_context_get_gl_platform_version (context, &plat_major, &plat_minor); - - display_egl = gst_gl_display_egl_from_gl_display (context->display); - if (!display_egl) { - GST_WARNING_OBJECT (context, "Failed to retrieve GstGLDisplayEGL from %" - GST_PTR_FORMAT, context->display); - return EGL_NO_IMAGE_KHR; - } - egl_display = - (EGLDisplay) gst_gl_display_get_handle (GST_GL_DISPLAY (display_egl)); - gst_object_unref (display_egl); - - if (target != EGL_LINUX_DMA_BUF_EXT) - egl_context = (EGLContext) gst_gl_context_get_gl_context (context); - - if (attribs) - while (attribs[attrib_len++] != EGL_NONE) { - } -#ifdef EGL_VERSION_1_5 - if (GST_GL_CHECK_GL_VERSION (plat_major, plat_minor, 1, 5)) { - EGLImageKHR (*gst_eglCreateImage) (EGLDisplay dpy, EGLContext ctx, - EGLenum target, EGLClientBuffer buffer, const EGLAttrib * attrib_list); - EGLAttrib *egl_attribs = NULL; - guint i; - - gst_eglCreateImage = gst_gl_context_get_proc_address (context, - "eglCreateImage"); - if (!gst_eglCreateImage) { - GST_ERROR_OBJECT (context, "\"eglCreateImage\" not exposed by the " - "implementation as required by EGL >= 1.5"); - return EGL_NO_IMAGE_KHR; - } - - if (attribs) { - egl_attribs = g_new0 (EGLAttrib, attrib_len); - for (i = 0; i < attrib_len; i++) - egl_attribs[i] = (EGLAttrib) attribs[i]; - } - - img = gst_eglCreateImage (egl_display, egl_context, target, buffer, - egl_attribs); - - g_free (egl_attribs); - } else -#endif - { - EGLImageKHR (*gst_eglCreateImageKHR) (EGLDisplay dpy, EGLContext ctx, - EGLenum target, EGLClientBuffer buffer, const EGLint * attrib_list); - EGLint *egl_attribs = NULL; - gint i; - - gst_eglCreateImageKHR = gst_gl_context_get_proc_address (context, - "eglCreateImageKHR"); - if (!gst_eglCreateImageKHR) { - GST_WARNING_OBJECT (context, "\"eglCreateImageKHR\" not exposed by the " - "implementation"); - return EGL_NO_IMAGE_KHR; - } - - if (attribs) { - egl_attribs = g_new0 (EGLint, attrib_len); - for (i = 0; i < attrib_len; i++) - egl_attribs[i] = (EGLint) attribs[i]; - } - - img = gst_eglCreateImageKHR (egl_display, egl_context, target, buffer, - egl_attribs); - - g_free (egl_attribs); - } - - return img; -} - -static void -_gst_egl_image_destroy (GstGLContext * context, EGLImageKHR image) -{ - EGLBoolean (*gst_eglDestroyImage) (EGLDisplay dpy, EGLImageKHR image); - EGLDisplay egl_display = EGL_DEFAULT_DISPLAY; - GstGLDisplayEGL *display_egl; - - gst_eglDestroyImage = gst_gl_context_get_proc_address (context, - "eglDestroyImage"); - if (!gst_eglDestroyImage) { - gst_eglDestroyImage = gst_gl_context_get_proc_address (context, - "eglDestroyImageKHR"); - if (!gst_eglDestroyImage) { - GST_ERROR_OBJECT (context, "\"eglDestroyImage\" not exposed by the " - "implementation"); - return; - } - } - - display_egl = gst_gl_display_egl_from_gl_display (context->display); - if (!display_egl) { - GST_WARNING_OBJECT (context, "Failed to retrieve GstGLDisplayEGL from %" - GST_PTR_FORMAT, context->display); - return; - } - egl_display = - (EGLDisplay) gst_gl_display_get_handle (GST_GL_DISPLAY (display_egl)); - gst_object_unref (display_egl); - - if (!gst_eglDestroyImage (egl_display, image)) - GST_WARNING_OBJECT (context, "eglDestroyImage failed"); -} - -static void -_destroy_egl_image (GstEGLImage * image, gpointer user_data) -{ - _gst_egl_image_destroy (image->context, image->image); -} - -/** - * gst_egl_image_from_texture: - * @context: a #GstGLContext (must be an EGL context) - * @gl_mem: a #GstGLMemory - * @attribs: additional attributes to add to the eglCreateImage() call. - * - * Returns: (transfer full): a #GstEGLImage wrapping @gl_mem or %NULL on failure - */ -GstEGLImage * -gst_egl_image_from_texture (GstGLContext * context, GstGLMemory * gl_mem, - guintptr * attribs) -{ - EGLenum egl_target; - EGLImageKHR img; - - if (gl_mem->tex_target != GST_GL_TEXTURE_TARGET_2D) { - GST_FIXME_OBJECT (context, "Only know how to create EGLImage's from 2D " - "textures"); - return NULL; - } - - egl_target = EGL_GL_TEXTURE_2D_KHR; - - img = _gst_egl_image_create (context, egl_target, - (EGLClientBuffer) (guintptr) gl_mem->tex_id, attribs); - if (!img) - return NULL; - - return gst_egl_image_new_wrapped (context, img, gl_mem->tex_format, NULL, - (GstEGLImageDestroyNotify) _destroy_egl_image); -} - -#if GST_GL_HAVE_DMABUF -/* - * GStreamer format descriptions differ from DRM formats as the representation - * is relative to a register, hence in native endianness. To reduce the driver - * requirement, we only import with a subset of texture formats and use - * shaders to convert. This way we avoid having to use external texture - * target. - */ -static int -_drm_fourcc_from_info (GstVideoInfo * info, int plane) -{ - GstVideoFormat format = GST_VIDEO_INFO_FORMAT (info); -#if G_BYTE_ORDER == G_LITTLE_ENDIAN - const gint rgba_fourcc = DRM_FORMAT_ABGR8888; - const gint rgb_fourcc = DRM_FORMAT_BGR888; - const gint rg_fourcc = DRM_FORMAT_GR88; -#else - const gint rgba_fourcc = DRM_FORMAT_RGBA8888; - const gint rgb_fourcc = DRM_FORMAT_RGB888; - const gint rg_fourcc = DRM_FORMAT_RG88; -#endif - - GST_DEBUG ("Getting DRM fourcc for %s plane %i", - gst_video_format_to_string (format), plane); - - switch (format) { - case GST_VIDEO_FORMAT_RGB16: - case GST_VIDEO_FORMAT_BGR16: - return DRM_FORMAT_RGB565; - - case GST_VIDEO_FORMAT_RGB: - case GST_VIDEO_FORMAT_BGR: - return rgb_fourcc; - - case GST_VIDEO_FORMAT_RGBA: - case GST_VIDEO_FORMAT_RGBx: - case GST_VIDEO_FORMAT_BGRA: - case GST_VIDEO_FORMAT_BGRx: - case GST_VIDEO_FORMAT_ARGB: - case GST_VIDEO_FORMAT_xRGB: - case GST_VIDEO_FORMAT_ABGR: - case GST_VIDEO_FORMAT_xBGR: - case GST_VIDEO_FORMAT_AYUV: - return rgba_fourcc; - - case GST_VIDEO_FORMAT_GRAY8: - return DRM_FORMAT_R8; - - case GST_VIDEO_FORMAT_YUY2: - case GST_VIDEO_FORMAT_UYVY: - case GST_VIDEO_FORMAT_GRAY16_LE: - case GST_VIDEO_FORMAT_GRAY16_BE: - return rg_fourcc; - - case GST_VIDEO_FORMAT_NV12: - case GST_VIDEO_FORMAT_NV21: - return plane == 0 ? DRM_FORMAT_R8 : rg_fourcc; - - case GST_VIDEO_FORMAT_I420: - case GST_VIDEO_FORMAT_YV12: - case GST_VIDEO_FORMAT_Y41B: - case GST_VIDEO_FORMAT_Y42B: - case GST_VIDEO_FORMAT_Y444: - return DRM_FORMAT_R8; - - default: - GST_ERROR ("Unsupported format for DMABuf."); - return -1; - } -} - -/** - * gst_egl_image_from_dmabuf: - * @context: a #GstGLContext (must be an EGL context) - * @dmabuf: the DMA-Buf file descriptor - * @in_info: the #GstVideoInfo in @dmabuf - * @plane: the plane in @in_info to create and #GstEGLImage for - * @offset: the byte-offset in the data - * - * Returns: a #GstEGLImage wrapping @dmabuf or %NULL on failure - */ -GstEGLImage * -gst_egl_image_from_dmabuf (GstGLContext * context, - gint dmabuf, GstVideoInfo * in_info, gint plane, gsize offset) -{ - GstGLFormat format; - guintptr attribs[13]; - EGLImageKHR img; - gint atti = 0; - gint fourcc; - gint i; - - fourcc = _drm_fourcc_from_info (in_info, plane); - format = gst_gl_format_from_video_info (context, in_info, plane); - - GST_DEBUG ("fourcc %.4s (%d) plane %d (%dx%d)", - (char *) &fourcc, fourcc, plane, - GST_VIDEO_INFO_COMP_WIDTH (in_info, plane), - GST_VIDEO_INFO_COMP_HEIGHT (in_info, plane)); - - attribs[atti++] = EGL_WIDTH; - attribs[atti++] = GST_VIDEO_INFO_COMP_WIDTH (in_info, plane); - attribs[atti++] = EGL_HEIGHT; - attribs[atti++] = GST_VIDEO_INFO_COMP_HEIGHT (in_info, plane); - attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT; - attribs[atti++] = fourcc; - attribs[atti++] = EGL_DMA_BUF_PLANE0_FD_EXT; - attribs[atti++] = dmabuf; - attribs[atti++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT; - attribs[atti++] = offset; - attribs[atti++] = EGL_DMA_BUF_PLANE0_PITCH_EXT; - attribs[atti++] = GST_VIDEO_INFO_PLANE_STRIDE (in_info, plane); - attribs[atti] = EGL_NONE; - - for (i = 0; i < atti; i++) - GST_LOG ("attr %i: %" G_GINTPTR_FORMAT, i, attribs[i]); - - g_assert (atti == 12); - - img = _gst_egl_image_create (context, EGL_LINUX_DMA_BUF_EXT, NULL, attribs); - if (!img) { - GST_WARNING ("eglCreateImage failed: %s", - gst_egl_get_error_string (eglGetError ())); - return NULL; - } - - return gst_egl_image_new_wrapped (context, img, format, NULL, - (GstEGLImageDestroyNotify) _destroy_egl_image); -} - -gboolean -gst_egl_image_export_dmabuf (GstEGLImage * image, int *fd, gint * stride, - gsize * offset) -{ - EGLBoolean (*gst_eglExportDMABUFImageQueryMESA) (EGLDisplay dpy, - EGLImageKHR image, int *fourcc, int *num_planes, - EGLuint64KHR * modifiers); - EGLBoolean (*gst_eglExportDMABUFImageMESA) (EGLDisplay dpy, EGLImageKHR image, - int *fds, EGLint * strides, EGLint * offsets); - GstGLDisplayEGL *display_egl; - EGLDisplay egl_display = EGL_DEFAULT_DISPLAY; - int num_planes = 0; - int egl_fd = 0; - EGLint egl_stride = 0; - EGLint egl_offset = 0; - - gst_eglExportDMABUFImageQueryMESA = - gst_gl_context_get_proc_address (image->context, - "eglExportDMABUFImageQueryMESA"); - gst_eglExportDMABUFImageMESA = - gst_gl_context_get_proc_address (image->context, - "eglExportDMABUFImageMESA"); - - if (!gst_eglExportDMABUFImageQueryMESA || !gst_eglExportDMABUFImageMESA) - return FALSE; - - display_egl = - (GstGLDisplayEGL *) gst_gl_display_egl_from_gl_display (image-> - context->display); - if (!display_egl) { - GST_WARNING_OBJECT (image->context, - "Failed to retrieve GstGLDisplayEGL from %" GST_PTR_FORMAT, - image->context->display); - return FALSE; - } - egl_display = - (EGLDisplay) gst_gl_display_get_handle (GST_GL_DISPLAY (display_egl)); - gst_object_unref (display_egl); - - if (!gst_eglExportDMABUFImageQueryMESA (egl_display, image->image, - NULL, &num_planes, NULL)) - return FALSE; - - /* Don't allow multi-plane dmabufs */ - if (num_planes > 1) - return FALSE; - - if (!gst_eglExportDMABUFImageMESA (egl_display, image->image, &egl_fd, - &egl_stride, &egl_offset)) - return FALSE; - - *fd = egl_fd; - *stride = egl_stride; - *offset = egl_offset; - - return TRUE; -} - -#endif /* GST_GL_HAVE_DMABUF */ |