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wayland: Add support for YUV-based EGLimages

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This commit is contained in:
Niels De Graef 2019-10-23 16:11:17 +02:00
parent f11ca9cfaf
commit ee17ddc18e
1 changed files with 63 additions and 23 deletions
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70
src/wayland/meta-wayland-buffer.c
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@ -319,10 +319,10 @@ egl_image_buffer_attach (MetaWaylandBuffer *buffer,
CoglContext *cogl_context = clutter_backend_get_cogl_context (clutter_backend); CoglContext *cogl_context = clutter_backend_get_cogl_context (clutter_backend);
EGLDisplay egl_display = cogl_egl_context_get_egl_display (cogl_context); EGLDisplay egl_display = cogl_egl_context_get_egl_display (cogl_context);
int format, width, height, y_inverted; int format, width, height, y_inverted;
CoglPixelFormat cogl_format; MetaMultiTextureFormat multi_format = META_MULTI_TEXTURE_FORMAT_SIMPLE;
EGLImageKHR egl_image; CoglPixelFormat cogl_format = COGL_PIXEL_FORMAT_ANY;
CoglEglImageFlags flags; guint i, n_planes;
CoglTexture2D *texture_2d; GPtrArray *planes;
if (buffer->egl_image.texture) if (buffer->egl_image.texture)
{ {
@ -351,6 +351,7 @@ egl_image_buffer_attach (MetaWaylandBuffer *buffer,
NULL)) NULL))
y_inverted = EGL_TRUE; y_inverted = EGL_TRUE;
/* Query the color format */
switch (format) switch (format)
{ {
case EGL_TEXTURE_RGB: case EGL_TEXTURE_RGB:
@ -359,6 +360,16 @@ egl_image_buffer_attach (MetaWaylandBuffer *buffer,
case EGL_TEXTURE_RGBA: case EGL_TEXTURE_RGBA:
cogl_format = COGL_PIXEL_FORMAT_RGBA_8888_PRE; cogl_format = COGL_PIXEL_FORMAT_RGBA_8888_PRE;
break; break;
case EGL_TEXTURE_Y_UV_WL:
/* Technically it can be anything with a separate Y and UV plane
* but since this is only used for shaders later, it's ok */
multi_format = META_MULTI_TEXTURE_FORMAT_NV12;
break;
case EGL_TEXTURE_Y_U_V_WL:
/* Technically it can be anything with a separate Y and UV plane
* but since this is only used for shaders later, it's ok */
multi_format = META_MULTI_TEXTURE_FORMAT_YUV444;
break;
default: default:
g_set_error (error, G_IO_ERROR, g_set_error (error, G_IO_ERROR,
G_IO_ERROR_FAILED, G_IO_ERROR_FAILED,
@ -366,35 +377,64 @@ egl_image_buffer_attach (MetaWaylandBuffer *buffer,
return FALSE; return FALSE;
} }
/* The WL_bind_wayland_display spec states that EGL_NO_CONTEXT is to be used /* Each EGLImage is a plane in the final texture */
* in conjunction with the EGL_WAYLAND_BUFFER_WL target. */ n_planes = meta_multi_texture_format_get_n_planes (multi_format);
egl_image = meta_egl_create_image (egl, egl_display, EGL_NO_CONTEXT, planes = g_ptr_array_new_full (n_planes, cogl_object_unref);
g_warning ("Got EGL with format %u", multi_format);
for (i = 0; i < n_planes; i++)
{
EGLint egl_attribs[3];
EGLImageKHR egl_img;
CoglEglImageFlags flags;
CoglTexture2D *texture_2d;
/* Specify that we want the i'th plane */
egl_attribs[0] = EGL_WAYLAND_PLANE_WL;
egl_attribs[1] = i;
egl_attribs[2] = EGL_NONE;
/* The WL_bind_wayland_display spec states that EGL_NO_CONTEXT is to be
* used in conjunction with the EGL_WAYLAND_BUFFER_WL target. */
egl_img = meta_egl_create_image (egl, egl_display, EGL_NO_CONTEXT,
EGL_WAYLAND_BUFFER_WL, buffer->resource, EGL_WAYLAND_BUFFER_WL, buffer->resource,
NULL, egl_attribs,
error); error);
if (egl_image == EGL_NO_IMAGE_KHR)
return FALSE; if (G_UNLIKELY (egl_img == EGL_NO_IMAGE_KHR))
goto on_error;
flags = COGL_EGL_IMAGE_FLAG_NONE; flags = COGL_EGL_IMAGE_FLAG_NONE;
texture_2d = cogl_egl_texture_2d_new_from_image (cogl_context, texture_2d = cogl_egl_texture_2d_new_from_image (cogl_context,
width, height, width, height,
cogl_format, cogl_format,
egl_image, egl_img,
flags, flags,
error); error);
meta_egl_destroy_image (egl, egl_display, egl_image, NULL); meta_egl_destroy_image (egl, egl_display, egl_img, NULL);
if (!texture_2d) if (G_UNLIKELY (!texture_2d))
return FALSE; goto on_error;
buffer->egl_image.texture = meta_multi_texture_new_simple (COGL_TEXTURE (texture_2d)); g_ptr_array_add (planes, COGL_TEXTURE (texture_2d));
}
buffer->egl_image.texture =
meta_multi_texture_new (multi_format,
(CoglTexture**) g_ptr_array_free (planes, FALSE),
n_planes);
buffer->is_y_inverted = !!y_inverted; buffer->is_y_inverted = !!y_inverted;
g_clear_object (texture); g_clear_object (texture);
*texture = g_object_ref (buffer->egl_image.texture); *texture = g_object_ref (buffer->egl_image.texture);
return TRUE; return TRUE;
on_error:
g_ptr_array_free (planes, TRUE);
return FALSE;
} }
#ifdef HAVE_WAYLAND_EGLSTREAM #ifdef HAVE_WAYLAND_EGLSTREAM