mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-27 04:01:08 +00:00
Code Issues 1 Projects Releases Wiki Activity
gstreamer/subprojects/gst-plugins-base/gst-libs/gst/gl/egl/gsteglimage.c
Nicolas Dufresne 516073f9d0 glupload: egl: Use n_plane values from the GstVideoInfo 
The number of planes is a meta we carry around in the GstVideoMeta with
DMA_DRM format. In cannot be decuded correctly from knowledge of the
base format. Notably, some compression modifier may introduce an extra
plane to store the compression parameters.

So use n_planes from GstVideoMeta and pass this explicitly when
importing to EGLImage.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5461>
2023-10-16 17:30:32 +00:00

1097 lines
32 KiB
C
Raw Blame History

/*
* 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 gst_egl_image_from_dmabuf_direct(), 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 "gsteglimage_private.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
#ifndef DRM_FORMAT_NV24
#define DRM_FORMAT_NV24 fourcc_code('N', 'V', '2', '4')
#endif
#endif
#ifndef DRM_FORMAT_BGRA1010102
#define DRM_FORMAT_BGRA1010102 fourcc_code('B', 'A', '3', '0')
#endif
#ifndef DRM_FORMAT_RGBA1010102
#define DRM_FORMAT_RGBA1010102 fourcc_code('R', 'A', '3', '0')
#endif
#ifndef DRM_FORMAT_R16
#define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ')
#endif
#ifndef DRM_FORMAT_GR1616
#define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2')
#endif
#ifndef DRM_FORMAT_RG1616
#define DRM_FORMAT_RG1616 fourcc_code('R', 'G', '3', '2')
#endif
#ifndef DRM_FORMAT_ABGR2101010
#define DRM_FORMAT_ABGR2101010 fourcc_code('A', 'B', '3', '0')
#endif
#ifndef DRM_FORMAT_RGBA1010102
#define DRM_FORMAT_RGBA1010102 fourcc_code('R', 'A', '3', '0')
#endif
#ifndef DRM_FORMAT_ABGR16161616
#define DRM_FORMAT_ABGR16161616 fourcc_code('A', 'B', '4', '8')
#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
#ifndef EGL_DMA_BUF_PLANE1_FD_EXT
#define EGL_DMA_BUF_PLANE1_FD_EXT 0x3275
#endif
#ifndef EGL_DMA_BUF_PLANE1_OFFSET_EXT
#define EGL_DMA_BUF_PLANE1_OFFSET_EXT 0x3276
#endif
#ifndef EGL_DMA_BUF_PLANE1_PITCH_EXT
#define EGL_DMA_BUF_PLANE1_PITCH_EXT 0x3277
#endif
#ifndef EGL_DMA_BUF_PLANE2_FD_EXT
#define EGL_DMA_BUF_PLANE2_FD_EXT 0x3278
#endif
#ifndef EGL_DMA_BUF_PLANE2_OFFSET_EXT
#define EGL_DMA_BUF_PLANE2_OFFSET_EXT 0x3279
#endif
#ifndef EGL_DMA_BUF_PLANE2_PITCH_EXT
#define EGL_DMA_BUF_PLANE2_PITCH_EXT 0x327A
#endif
#ifndef DRM_FORMAT_MOD_LINEAR
#define DRM_FORMAT_MOD_LINEAR 0ULL
#endif
#ifndef EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT
#define EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT 0x3443
#endif
#ifndef EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT
#define EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT 0x3444
#endif
#ifndef EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT
#define EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT 0x3445
#endif
#ifndef EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT
#define EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT 0x3446
#endif
#ifndef EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT
#define EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT 0x3447
#endif
#ifndef EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT
#define EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT 0x3448
#endif
#ifndef EGL_ITU_REC601_EXT
#define EGL_ITU_REC601_EXT 0x327F
#endif
#ifndef EGL_ITU_REC709_EXT
#define EGL_ITU_REC709_EXT 0x3280
#endif
#ifndef EGL_ITU_REC2020_EXT
#define EGL_ITU_REC2020_EXT 0x3281
#endif
#ifndef EGL_SAMPLE_RANGE_HINT_EXT
#define EGL_SAMPLE_RANGE_HINT_EXT 0x327C
#endif
#ifndef EGL_YUV_COLOR_SPACE_HINT_EXT
#define EGL_YUV_COLOR_SPACE_HINT_EXT 0x327B
#endif
#ifndef EGL_YUV_FULL_RANGE_EXT
#define EGL_YUV_FULL_RANGE_EXT 0x3282
#endif
#ifndef EGL_YUV_NARROW_RANGE_EXT
#define EGL_YUV_NARROW_RANGE_EXT 0x3283
#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 `EGLImage` 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);
}
g_free (image);
}
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: (destroy user_data) (scope async): 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;
guint attrib_len = 0;
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
gint plat_major, plat_minor;
gst_gl_context_get_gl_platform_version (context, &plat_major, &plat_minor);
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
if (gst_gl_context_check_feature (context, "EGL_KHR_image_base")) {
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_ERROR_OBJECT (context, "\"eglCreateImageKHR\" not exposed by the "
"implementation as required by EGL_KHR_image_base");
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);
} else {
GST_INFO_OBJECT (context, "EGLImage creation not supported");
return EGL_NO_IMAGE_KHR;
}
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;
#ifdef EGL_VERSION_1_5
gint plat_major, plat_minor;
gst_gl_context_get_gl_platform_version (context, &plat_major, &plat_minor);
if (GST_GL_CHECK_GL_VERSION (plat_major, plat_minor, 1, 5)) {
gst_eglDestroyImage = gst_gl_context_get_proc_address (context,
"eglDestroyImage");
if (!gst_eglDestroyImage) {
GST_ERROR_OBJECT (context, "\"eglDestroyImage\" not exposed by the "
"implementation as required by EGL >= 1.5");
return;
}
} else
#endif
if (gst_gl_context_check_feature (context, "EGL_KHR_image_base")) {
gst_eglDestroyImage = gst_gl_context_get_proc_address (context,
"eglDestroyImageKHR");
if (!gst_eglDestroyImage) {
GST_ERROR_OBJECT (context, "\"eglDestroyImage\" not exposed by the "
"implementation as required by EGL_KHR_image_base");
return;
}
} else {
GST_ERROR_OBJECT (context, "Destruction of EGLImage not supported.");
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) (nullable): 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_rgba_fourcc_from_info (const GstVideoInfo * info, int plane,
GstGLFormat * out_format)
{
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;
const gint rg16_fourcc = DRM_FORMAT_GR1616;
const gint rgb10a2_fourcc = DRM_FORMAT_ABGR2101010;
#else
const gint rgba_fourcc = DRM_FORMAT_RGBA8888;
const gint rgb_fourcc = DRM_FORMAT_RGB888;
const gint rg_fourcc = DRM_FORMAT_RG88;
const gint rg16_fourcc = DRM_FORMAT_RG1616;
const gint rgb10a2_fourcc = DRM_FORMAT_RGBA1010102;
#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:
*out_format = GST_GL_RGB565;
return DRM_FORMAT_RGB565;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
*out_format = GST_GL_RGB;
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:
case GST_VIDEO_FORMAT_VUYA:
*out_format = GST_GL_RGBA;
return rgba_fourcc;
case GST_VIDEO_FORMAT_GRAY8:
*out_format = GST_GL_RED;
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:
*out_format = GST_GL_RG;
return rg_fourcc;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
case GST_VIDEO_FORMAT_NV16:
case GST_VIDEO_FORMAT_NV61:
case GST_VIDEO_FORMAT_NV12_16L32S:
case GST_VIDEO_FORMAT_NV12_4L4:
*out_format = plane == 0 ? GST_GL_RED : GST_GL_RG;
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:
*out_format = GST_GL_RED;
return DRM_FORMAT_R8;
case GST_VIDEO_FORMAT_BGR10A2_LE:
*out_format = GST_GL_RGB10_A2;
return DRM_FORMAT_BGRA1010102;
case GST_VIDEO_FORMAT_RGB10A2_LE:
*out_format = GST_GL_RGB10_A2;
return DRM_FORMAT_RGBA1010102;
case GST_VIDEO_FORMAT_P010_10LE:
case GST_VIDEO_FORMAT_P012_LE:
case GST_VIDEO_FORMAT_P016_LE:
*out_format = plane == 0 ? GST_GL_R16 : GST_GL_RG16;
return plane == 0 ? DRM_FORMAT_R16 : DRM_FORMAT_GR1616;
case GST_VIDEO_FORMAT_P010_10BE:
case GST_VIDEO_FORMAT_P012_BE:
case GST_VIDEO_FORMAT_P016_BE:
*out_format = plane == 0 ? GST_GL_R16 : GST_GL_RG16;
return plane == 0 ? DRM_FORMAT_R16 : DRM_FORMAT_RG1616;
case GST_VIDEO_FORMAT_AV12:
*out_format = plane == 1 ? GST_GL_RED : GST_GL_RG;
return plane == 1 ? rg_fourcc : DRM_FORMAT_R8;
case GST_VIDEO_FORMAT_Y210:
*out_format = GST_GL_RG16;
return rg16_fourcc;
case GST_VIDEO_FORMAT_Y212_LE:
*out_format = GST_GL_RG16;
return DRM_FORMAT_GR1616;
case GST_VIDEO_FORMAT_Y212_BE:
*out_format = GST_GL_RG16;
return DRM_FORMAT_RG1616;
case GST_VIDEO_FORMAT_Y410:
*out_format = GST_GL_RGB10_A2;
return rgb10a2_fourcc;
case GST_VIDEO_FORMAT_Y412_LE:
*out_format = GST_GL_RGBA16;
return DRM_FORMAT_ABGR16161616;
default:
GST_ERROR ("Unsupported format for DMABuf.");
return -1;
}
}
static gint
get_egl_stride (const GstVideoInfo * info, gint plane)
{
const GstVideoFormatInfo *finfo = info->finfo;
gint stride = info->stride[plane];
if (!GST_VIDEO_FORMAT_INFO_IS_TILED (finfo))
return stride;
return GST_VIDEO_TILE_X_TILES (stride) *
GST_VIDEO_FORMAT_INFO_TILE_STRIDE (finfo, plane);
}
/**
* 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
*
* Creates an EGL image that imports the dmabuf FD. The dmabuf data
* is passed as RGBA data. Shaders later take this "RGBA" data and
* convert it from its true format (described by in_info) to actual
* RGBA output. For example, with I420, three EGL images are created,
* one for each @plane, each EGL image with a single-channel R format.
* With NV12, two EGL images are created, one with R format, one
* with RG format etc.
*
* Returns: (nullable): a #GstEGLImage wrapping @dmabuf or %NULL on failure
*/
GstEGLImage *
gst_egl_image_from_dmabuf (GstGLContext * context,
gint dmabuf, const GstVideoInfo * in_info, gint plane, gsize offset)
{
gint comp[GST_VIDEO_MAX_COMPONENTS];
GstGLFormat format = 0;
guintptr attribs[17];
EGLImageKHR img;
gint atti = 0;
gint fourcc;
gint i;
gboolean with_modifiers;
gst_video_format_info_component (in_info->finfo, plane, comp);
fourcc = _drm_rgba_fourcc_from_info (in_info, plane, &format);
GST_DEBUG ("fourcc %.4s (%d) plane %d (%dx%d)",
(char *) &fourcc, fourcc, plane,
GST_VIDEO_INFO_COMP_WIDTH (in_info, comp[0]),
GST_VIDEO_INFO_COMP_HEIGHT (in_info, comp[0]));
with_modifiers = gst_gl_context_check_feature (context,
"EGL_EXT_image_dma_buf_import_modifiers");
attribs[atti++] = EGL_WIDTH;
attribs[atti++] = GST_VIDEO_INFO_COMP_WIDTH (in_info, comp[0]);
attribs[atti++] = EGL_HEIGHT;
attribs[atti++] = GST_VIDEO_INFO_COMP_HEIGHT (in_info, comp[0]);
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++] = get_egl_stride (in_info, plane);
if (with_modifiers) {
attribs[atti++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT;
attribs[atti++] = DRM_FORMAT_MOD_LINEAR & 0xffffffff;
attribs[atti++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT;
attribs[atti++] = (DRM_FORMAT_MOD_LINEAR >> 32) & 0xffffffff;
}
attribs[atti] = EGL_NONE;
g_assert (atti <= G_N_ELEMENTS (attribs) - 1);
for (i = 0; i < atti; i++)
GST_LOG ("attr %i: %" G_GINTPTR_FORMAT, i, attribs[i]);
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);
}
/**
* gst_egl_image_check_dmabuf_direct:
* @context: a #GstGLContext (must be an EGL context)
* @in_info: a #GstVideoInfo
* @target: a #GstGLTextureTarget
*
* Checks whether the video format specified by the given #GstVideoInfo is a
* supported texture format for the given @target.
*
* Returns: %TRUE if the format is supported.
*/
gboolean
gst_egl_image_check_dmabuf_direct (GstGLContext * context,
const GstVideoInfo * in_info, GstGLTextureTarget target)
{
GstVideoInfoDmaDrm in_info_dma;
if (!gst_video_info_dma_drm_from_video_info (&in_info_dma, in_info,
DRM_FORMAT_MOD_LINEAR))
return FALSE;
return gst_egl_image_check_dmabuf_direct_with_dma_drm (context, &in_info_dma,
target);
}
/**
* gst_egl_image_check_dmabuf_direct_with_dma_drm:
* @context: a #GstGLContext (must be an EGL context)
* @in_info_dma: a #GstVideoInfoDmaDrm
* @target: a #GstGLTextureTarget
*
* Checks whether the video format specified by the given #GstVideoInfoDmaDrm is
* a supported texture format for the given @target.
*
* Returns: %TRUE if the format is supported.
*
* Since: 1.24
*/
gboolean
gst_egl_image_check_dmabuf_direct_with_dma_drm (GstGLContext * context,
const GstVideoInfoDmaDrm * in_info_dma, GstGLTextureTarget target)
{
GstGLDmaModifier *mods, linear_modifier = { 0, FALSE };
gsize len;
const GArray *modifiers = NULL;
gint32 fourcc;
int i;
gboolean ret = FALSE;
fourcc = in_info_dma->drm_fourcc;
if (fourcc == DRM_FORMAT_INVALID) {
GST_INFO ("Unsupported format for direct DMABuf.");
return FALSE;
}
if (!gst_gl_context_egl_get_format_modifiers (context, fourcc, &modifiers)) {
GST_DEBUG ("driver does not support importing fourcc %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (fourcc));
return FALSE;
}
if (modifiers) {
mods = (GstGLDmaModifier *) modifiers->data;
len = modifiers->len;
} else {
mods = &linear_modifier;
len = 1;
}
for (i = 0; i < len; ++i) {
GstGLDmaModifier *modifier = &mods[i];
if (modifier->modifier == in_info_dma->drm_modifier) {
if (modifier->external_only) {
GST_DEBUG ("driver only supports external import of fourcc %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
}
ret = !modifier->external_only
|| (target == GST_GL_TEXTURE_TARGET_EXTERNAL_OES);
break;
}
}
if (!ret) {
GST_DEBUG ("driver only supports non-linear import of fourcc %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
}
return ret;
}
/**
* gst_egl_image_from_dmabuf_direct_target:
* @context: a #GstGLContext (must be an EGL context)
* @fd: Array of DMABuf file descriptors
* @offset: Array of offsets, relative to the DMABuf
* @in_info: the #GstVideoInfo
* @target: GL texture target this GstEGLImage is intended for
*
* Creates an EGL image that imports the dmabuf FD. The dmabuf data
* is passed directly as the format described in @in_info. This is
* useful if the hardware is capable of performing color space conversions
* internally. The appropriate DRM format is picked, and the EGL image
* is created with this DRM format.
*
* Another notable difference to gst_egl_image_from_dmabuf()
* is that this function creates one EGL image for all planes, not one for
* a single plane.
*
* Returns: (nullable): a #GstEGLImage wrapping @dmabuf or %NULL on failure
*
* Since: 1.18
*/
GstEGLImage *
gst_egl_image_from_dmabuf_direct_target (GstGLContext * context,
gint * fd, const gsize * offset, const GstVideoInfo * in_info,
GstGLTextureTarget target)
{
GstVideoInfoDmaDrm in_info_dma;
if (!gst_video_info_dma_drm_from_video_info (&in_info_dma, in_info,
DRM_FORMAT_MOD_LINEAR))
return NULL;
return gst_egl_image_from_dmabuf_direct_target_with_dma_drm (context,
GST_VIDEO_INFO_N_PLANES (in_info), fd, offset, &in_info_dma, target);
}
/**
* gst_egl_image_from_dmabuf_direct_target_with_dma_drm:
* @context: a #GstGLContext (must be an EGL context)
* @n_planes: number of planes (obtained from a #GstVideoMeta)
* @fd: Array of DMABuf file descriptors
* @offset: Array of offsets, relative to the DMABuf
* @in_info_dma: the #GstVideoInfoDmaDrm
* @target: GL texture target this GstEGLImage is intended for
*
* Creates an EGL image that imports the dmabuf FD. The dmabuf data is passed
* directly as the format described in @in_info. This is useful if the hardware
* is capable of performing color space conversions internally.
*
* Another notable difference to gst_egl_image_from_dmabuf() is that this
* function creates one EGL image for all planes, not one for a single plane.
*
* Returns: (nullable): a #GstEGLImage wrapping @dmabuf or %NULL on failure
*
* Since: 1.24
*/
GstEGLImage *
gst_egl_image_from_dmabuf_direct_target_with_dma_drm (GstGLContext * context,
guint n_planes, gint * fd, const gsize * offset,
const GstVideoInfoDmaDrm * in_info_dma, GstGLTextureTarget target)
{
EGLImageKHR img;
const GstVideoInfo *in_info = &in_info_dma->vinfo;
guint32 fourcc;
guint64 modifier;
gint i;
gboolean with_modifiers;
/* Explanation of array length:
* - 6 plane independent values are at the start (width, height, format FourCC)
* - 10 values per plane, and there are up to MAX_NUM_DMA_BUF_PLANES planes
* - 4 values for color space and range
* - 1 extra value for the EGL_NONE sentinel
*/
guintptr attribs[41]; /* 6 + 10 * 3 + 4 + 1 */
gint atti = 0;
if (!gst_egl_image_check_dmabuf_direct_with_dma_drm (context, in_info_dma,
target))
return NULL;
fourcc = in_info_dma->drm_fourcc;
modifier = in_info_dma->drm_modifier;
with_modifiers = gst_gl_context_check_feature (context,
"EGL_EXT_image_dma_buf_import_modifiers");
if (!with_modifiers && modifier != DRM_FORMAT_MOD_LINEAR)
return NULL;
/* EGL DMABuf importation supports a maximum of 3 planes */
if (G_UNLIKELY (n_planes > 3))
return NULL;
attribs[atti++] = EGL_WIDTH;
attribs[atti++] = GST_VIDEO_INFO_WIDTH (in_info);
attribs[atti++] = EGL_HEIGHT;
attribs[atti++] = GST_VIDEO_INFO_HEIGHT (in_info);
attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT;
attribs[atti++] = fourcc;
/* first plane */
{
attribs[atti++] = EGL_DMA_BUF_PLANE0_FD_EXT;
attribs[atti++] = fd[0];
attribs[atti++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
attribs[atti++] = offset[0];
attribs[atti++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
attribs[atti++] = get_egl_stride (in_info, 0);
if (with_modifiers && modifier != DRM_FORMAT_MOD_INVALID) {
attribs[atti++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT;
attribs[atti++] = modifier & 0xffffffff;
attribs[atti++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT;
attribs[atti++] = (modifier >> 32) & 0xffffffff;
}
}
/* second plane */
if (n_planes >= 2) {
attribs[atti++] = EGL_DMA_BUF_PLANE1_FD_EXT;
attribs[atti++] = fd[1];
attribs[atti++] = EGL_DMA_BUF_PLANE1_OFFSET_EXT;
attribs[atti++] = offset[1];
attribs[atti++] = EGL_DMA_BUF_PLANE1_PITCH_EXT;
attribs[atti++] = get_egl_stride (in_info, 1);
if (with_modifiers && modifier != DRM_FORMAT_MOD_INVALID) {
attribs[atti++] = EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT;
attribs[atti++] = modifier & 0xffffffff;
attribs[atti++] = EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT;
attribs[atti++] = (modifier >> 32) & 0xffffffff;
}
}
/* third plane */
if (n_planes == 3) {
attribs[atti++] = EGL_DMA_BUF_PLANE2_FD_EXT;
attribs[atti++] = fd[2];
attribs[atti++] = EGL_DMA_BUF_PLANE2_OFFSET_EXT;
attribs[atti++] = offset[2];
attribs[atti++] = EGL_DMA_BUF_PLANE2_PITCH_EXT;
attribs[atti++] = get_egl_stride (in_info, 2);
if (with_modifiers && modifier != DRM_FORMAT_MOD_INVALID) {
attribs[atti++] = EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT;
attribs[atti++] = modifier & 0xffffffff;
attribs[atti++] = EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT;
attribs[atti++] = (modifier >> 32) & 0xffffffff;
}
}
{
uint32_t color_space;
switch (in_info->colorimetry.matrix) {
case GST_VIDEO_COLOR_MATRIX_BT601:
color_space = EGL_ITU_REC601_EXT;
break;
case GST_VIDEO_COLOR_MATRIX_BT709:
color_space = EGL_ITU_REC709_EXT;
break;
case GST_VIDEO_COLOR_MATRIX_BT2020:
color_space = EGL_ITU_REC2020_EXT;
break;
default:
color_space = 0;
break;
}
if (color_space != 0) {
attribs[atti++] = EGL_YUV_COLOR_SPACE_HINT_EXT;
attribs[atti++] = color_space;
}
}
{
uint32_t range;
switch (in_info->colorimetry.range) {
case GST_VIDEO_COLOR_RANGE_0_255:
range = EGL_YUV_FULL_RANGE_EXT;
break;
case GST_VIDEO_COLOR_RANGE_16_235:
range = EGL_YUV_NARROW_RANGE_EXT;
break;
default:
range = 0;
break;
}
if (range != 0) {
attribs[atti++] = EGL_SAMPLE_RANGE_HINT_EXT;
attribs[atti++] = range;
}
}
/* Add the EGL_NONE sentinel */
attribs[atti] = EGL_NONE;
g_assert (atti <= G_N_ELEMENTS (attribs) - 1);
for (i = 0; i < atti; i++)
GST_LOG ("attr %i: %" G_GINTPTR_FORMAT, i, attribs[i]);
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, GST_GL_RGBA, NULL,
(GstEGLImageDestroyNotify) _destroy_egl_image);
}
/**
* gst_egl_image_from_dmabuf_direct:
* @context: a #GstGLContext (must be an EGL context)
* @fd: Array of DMABuf file descriptors
* @offset: Array of offsets, relative to the DMABuf
* @in_info: the #GstVideoInfo
*
* Creates an EGL image that imports the dmabuf FD. The dmabuf data
* is passed directly as the format described in in_info. This is
* useful if the hardware is capable of performing color space conversions
* internally. The appropriate DRM format is picked, and the EGL image
* is created with this DRM format.
*
* Another notable difference to gst_egl_image_from_dmabuf()
* is that this function creates one EGL image for all planes, not one for
* a single plane.
*
* Returns: (nullable): a #GstEGLImage wrapping @dmabuf or %NULL on failure
*/
GstEGLImage *
gst_egl_image_from_dmabuf_direct (GstGLContext * context,
gint * fd, const gsize * offset, const GstVideoInfo * in_info)
{
return gst_egl_image_from_dmabuf_direct_target (context, fd, offset, in_info,
GST_GL_TEXTURE_TARGET_2D);
}
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;
int fourcc;
EGLuint64KHR modifier;
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,
&fourcc, &num_planes, &modifier))
return FALSE;
/* Don't allow multi-plane dmabufs */
if (num_planes > 1)
return FALSE;
/* FIXME We don't support modifiers */
if (modifier != DRM_FORMAT_MOD_LINEAR)
return FALSE;
if (!gst_eglExportDMABUFImageMESA (egl_display, image->image, &egl_fd,
&egl_stride, &egl_offset))
return FALSE;
GST_DEBUG_OBJECT (image->context, "Export DMABuf with fourcc %"
GST_FOURCC_FORMAT ", modififers %" G_GUINT64_FORMAT
", stride %i and offset %i", GST_FOURCC_ARGS (fourcc), modifier,
egl_stride, egl_offset);
*fd = egl_fd;
*stride = egl_stride;
*offset = egl_offset;
return TRUE;
}
#endif /* GST_GL_HAVE_DMABUF */
Reference in a new issue View git blame Copy permalink