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gstreamer/subprojects/gst-plugins-base/gst-libs/gst/gl/egl/gsteglimage.c
Nicolas Dufresne 5980fb76e7 video: Add arbitrary tile dimensions support 
In current tile representation, only tiles with power of two
width and height in bytes are supported. This limitation
prevents adding more complex tiles formats.

In this patch, we deprecate tile_ws and tile_hs from GstVideoFormatInfo and
replace if with an array of GstVideoTileInfo. Each plane tiles are then
described with their pixels width/height, line stride and total size.
The helper gst_video_format_info_get_tile_sizes() that depends on the
deprecated API is also being removed. This can simply be removed as it wasn't
in any stable release yet.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3424>
2022-11-18 22:59:29 +00:00

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/*
* 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[13];
EGLImageKHR img;
gint atti = 0;
gint fourcc;
gint i;
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]));
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);
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);
}
/*
* Variant of _drm_rgba_fourcc_from_info() that is used in case the GPU can
* handle YUV formats directly (by using internal shaders, or hardwired
* YUV->RGB conversion matrices etc.)
*/
static int
_drm_direct_fourcc_from_info (const GstVideoInfo * info)
{
GstVideoFormat format = GST_VIDEO_INFO_FORMAT (info);
GST_DEBUG ("Getting DRM fourcc for %s", gst_video_format_to_string (format));
switch (format) {
case GST_VIDEO_FORMAT_YUY2:
return DRM_FORMAT_YUYV;
case GST_VIDEO_FORMAT_YVYU:
return DRM_FORMAT_YVYU;
case GST_VIDEO_FORMAT_UYVY:
return DRM_FORMAT_UYVY;
case GST_VIDEO_FORMAT_VYUY:
return DRM_FORMAT_VYUY;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_VUYA:
return DRM_FORMAT_AYUV;
case GST_VIDEO_FORMAT_NV12:
return DRM_FORMAT_NV12;
case GST_VIDEO_FORMAT_NV21:
return DRM_FORMAT_NV21;
case GST_VIDEO_FORMAT_NV16:
return DRM_FORMAT_NV16;
case GST_VIDEO_FORMAT_NV61:
return DRM_FORMAT_NV61;
case GST_VIDEO_FORMAT_NV24:
return DRM_FORMAT_NV24;
case GST_VIDEO_FORMAT_YUV9:
return DRM_FORMAT_YUV410;
case GST_VIDEO_FORMAT_YVU9:
return DRM_FORMAT_YVU410;
case GST_VIDEO_FORMAT_Y41B:
return DRM_FORMAT_YUV411;
case GST_VIDEO_FORMAT_I420:
return DRM_FORMAT_YUV420;
case GST_VIDEO_FORMAT_YV12:
return DRM_FORMAT_YVU420;
case GST_VIDEO_FORMAT_Y42B:
return DRM_FORMAT_YUV422;
case GST_VIDEO_FORMAT_Y444:
return DRM_FORMAT_YUV444;
case GST_VIDEO_FORMAT_RGB16:
return DRM_FORMAT_RGB565;
case GST_VIDEO_FORMAT_BGR16:
return DRM_FORMAT_BGR565;
case GST_VIDEO_FORMAT_RGBA:
return DRM_FORMAT_ABGR8888;
case GST_VIDEO_FORMAT_RGBx:
return DRM_FORMAT_XBGR8888;
case GST_VIDEO_FORMAT_BGRA:
return DRM_FORMAT_ARGB8888;
case GST_VIDEO_FORMAT_BGRx:
return DRM_FORMAT_XRGB8888;
case GST_VIDEO_FORMAT_ARGB:
return DRM_FORMAT_BGRA8888;
case GST_VIDEO_FORMAT_xRGB:
return DRM_FORMAT_BGRX8888;
case GST_VIDEO_FORMAT_ABGR:
return DRM_FORMAT_RGBA8888;
case GST_VIDEO_FORMAT_xBGR:
return DRM_FORMAT_RGBX8888;
default:
GST_INFO ("Unsupported format for direct DMABuf.");
return -1;
}
}
/**
* 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)
{
EGLDisplay egl_display = EGL_DEFAULT_DISPLAY;
GstGLDisplayEGL *display_egl;
EGLint *formats;
EGLint num_formats;
EGLuint64KHR *modifiers;
EGLBoolean *external_only;
int num_modifiers;
gboolean ret;
int fourcc;
int i;
EGLBoolean (*gst_eglQueryDmaBufFormatsEXT) (EGLDisplay dpy,
EGLint max_formats, EGLint * formats, EGLint * num_formats);
EGLBoolean (*gst_eglQueryDmaBufModifiersEXT) (EGLDisplay dpy,
int format, int max_modifiers, EGLuint64KHR * modifiers,
EGLBoolean * external_only, int *num_modifiers);
fourcc = _drm_direct_fourcc_from_info (in_info);
if (fourcc == -1)
return FALSE;
gst_eglQueryDmaBufFormatsEXT =
gst_gl_context_get_proc_address (context, "eglQueryDmaBufFormatsEXT");
gst_eglQueryDmaBufModifiersEXT =
gst_gl_context_get_proc_address (context, "eglQueryDmaBufModifiersEXT");
if (!gst_eglQueryDmaBufFormatsEXT || !gst_eglQueryDmaBufModifiersEXT)
return FALSE;
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 FALSE;
}
egl_display =
(EGLDisplay) gst_gl_display_get_handle (GST_GL_DISPLAY (display_egl));
gst_object_unref (display_egl);
ret = gst_eglQueryDmaBufFormatsEXT (egl_display, 0, NULL, &num_formats);
if (!ret || num_formats == 0)
return FALSE;
formats = g_new (EGLint, num_formats);
ret = gst_eglQueryDmaBufFormatsEXT (egl_display, num_formats, formats,
&num_formats);
if (!ret || num_formats == 0) {
g_free (formats);
return FALSE;
}
for (i = 0; i < num_formats; i++) {
if (formats[i] == fourcc)
break;
}
g_free (formats);
if (i == num_formats) {
GST_DEBUG ("driver does not support importing fourcc %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (fourcc));
return FALSE;
}
ret = gst_eglQueryDmaBufModifiersEXT (egl_display, fourcc, 0, NULL, NULL,
&num_modifiers);
if (!ret || num_modifiers == 0) {
GST_DEBUG ("driver does not report modifiers for fourcc %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
return FALSE;
}
modifiers = g_new (EGLuint64KHR, num_modifiers);
external_only = g_new (EGLBoolean, num_modifiers);
ret = gst_eglQueryDmaBufModifiersEXT (egl_display, fourcc, num_modifiers,
modifiers, external_only, &num_modifiers);
if (!ret || num_modifiers == 0) {
g_free (modifiers);
g_free (external_only);
return FALSE;
}
for (i = 0; i < num_modifiers; ++i) {
if (modifiers[i] == DRM_FORMAT_MOD_LINEAR) {
if (external_only[i]) {
GST_DEBUG ("driver only supports external import of fourcc %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
}
ret = !external_only[i] || (target == GST_GL_TEXTURE_TARGET_EXTERNAL_OES);
g_free (modifiers);
g_free (external_only);
return ret;
}
}
GST_DEBUG ("driver only supports non-linear import of fourcc %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
g_free (modifiers);
g_free (external_only);
return FALSE;
}
/**
* 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)
{
EGLImageKHR img;
guint n_planes = GST_VIDEO_INFO_N_PLANES (in_info);
gint fourcc;
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 (context, in_info, target))
return NULL;
fourcc = _drm_direct_fourcc_from_info (in_info);
with_modifiers = gst_gl_context_check_feature (context,
"EGL_EXT_image_dma_buf_import_modifiers");
/* 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) {
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;
}
}
/* 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) {
attribs[atti++] = EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT;
attribs[atti++] = DRM_FORMAT_MOD_LINEAR & 0xffffffff;
attribs[atti++] = EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT;
attribs[atti++] = (DRM_FORMAT_MOD_LINEAR >> 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) {
attribs[atti++] = EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT;
attribs[atti++] = DRM_FORMAT_MOD_LINEAR & 0xffffffff;
attribs[atti++] = EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT;
attribs[atti++] = (DRM_FORMAT_MOD_LINEAR >> 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 */
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