*
* #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.
+ * 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
* target.
*/
static int
-_drm_fourcc_from_info (GstVideoInfo * info, int plane)
+_drm_rgba_fourcc_from_info (GstVideoInfo * info, int plane)
{
GstVideoFormat format = GST_VIDEO_INFO_FORMAT (info);
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
* @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: a #GstEGLImage wrapping @dmabuf or %NULL on failure
*/
GstEGLImage *
gint fourcc;
gint i;
- fourcc = _drm_fourcc_from_info (in_info, plane);
+ fourcc = _drm_rgba_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)",
attribs[atti++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
attribs[atti++] = GST_VIDEO_INFO_PLANE_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]);
- g_assert (atti == 12);
-
img = _gst_egl_image_create (context, EGL_LINUX_DMA_BUF_EXT, NULL, attribs);
if (!img) {
GST_WARNING ("eglCreateImage failed: %s",
(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 (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:
+ 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;
+ }
+}
+
+static gboolean
+_gst_egl_image_check_dmabuf_direct (GstGLContext * context,
+ GstVideoInfo * in_info)
+{
+ EGLDisplay egl_display = EGL_DEFAULT_DISPLAY;
+ GstGLDisplayEGL *display_egl;
+ EGLuint64KHR *modifiers;
+ EGLBoolean *external_only;
+ int num_modifiers;
+ gboolean ret;
+ int i;
+
+ EGLBoolean (*gst_eglQueryDmaBufModifiersEXT) (EGLDisplay dpy,
+ int format, int max_modifiers, EGLuint64KHR * modifiers,
+ EGLBoolean * external_only, int *num_modifiers);
+
+ gst_eglQueryDmaBufModifiersEXT =
+ gst_gl_context_get_proc_address (context, "eglQueryDmaBufModifiersEXT");
+
+ if (!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_eglQueryDmaBufModifiersEXT (egl_display,
+ _drm_direct_fourcc_from_info (in_info), 0, NULL, NULL, &num_modifiers);
+ if (!ret || num_modifiers == 0)
+ return FALSE;
+
+ modifiers = g_new (EGLuint64KHR, num_modifiers);
+ external_only = g_new (EGLBoolean, num_modifiers);
+
+ ret = gst_eglQueryDmaBufModifiersEXT (egl_display,
+ _drm_direct_fourcc_from_info (in_info), 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) {
+ ret = !external_only[i];
+ g_free (modifiers);
+ g_free (external_only);
+ return ret;
+ }
+ }
+ g_free (modifiers);
+ g_free (external_only);
+ return FALSE;
+}
+
+/**
+ * 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: a #GstEGLImage wrapping @dmabuf or %NULL on failure
+ */
+GstEGLImage *
+gst_egl_image_from_dmabuf_direct (GstGLContext * context,
+ gint * fd, gsize * offset, GstVideoInfo * in_info)
+{
+
+ EGLImageKHR img;
+ guint n_planes = GST_VIDEO_INFO_N_PLANES (in_info);
+ 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))
+ return NULL;
+
+ with_modifiers = gst_gl_context_check_feature (context,
+ "EGL_EXT_image_dma_buf_import_with_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++] = _drm_direct_fourcc_from_info (in_info);
+
+ /* 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++] = in_info->stride[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++] = in_info->stride[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++] = in_info->stride[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);
+}
+
gboolean
gst_egl_image_export_dmabuf (GstEGLImage * image, int *fd, gint * stride,
gsize * offset)
projects / platform / upstream / gstreamer.git / commitdiff