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glcontext: Split dmabuf import codepaths

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Use different codepaths for known formats vs unknown formats.

Be more careful with unknown formats and always import them as
GL_TEXTURE_EXTERNAL_OES when possible (GL can't do EXTERNAL) to avoid
problems.

This is a more defensive approach towards older drivers that don't
support modifiers.

This fixes importing YUV textures on AMD Gen8.

Another approach would be to check for YUV and never try
GL_TEXTURE_2D with them, but I decided to go this way first.

Fixes #6668
This commit is contained in:
Benjamin Otte 2024-04-28 07:47:40 +02:00
parent 719021e1f4
commit c20e7a0c5d
1 changed files with 72 additions and 33 deletions
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39
gdk/gdkglcontext.c
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@ -2198,6 +2198,10 @@ gdk_gl_context_import_dmabuf (GdkGLContext *self,
gdk_display_init_dmabuf (display);
if (gdk_dmabuf_formats_contains (display->egl_dmabuf_formats, dmabuf->fourcc, dmabuf->modifier))
{
/* This is the path for modern drivers that support modifiers */
if (!gdk_dmabuf_formats_contains (display->egl_external_formats, dmabuf->fourcc, dmabuf->modifier))
{
texture_id = gdk_gl_context_import_dmabuf_for_target (self,
@ -2249,6 +2253,41 @@ gdk_gl_context_import_dmabuf (GdkGLContext *self,
*external = TRUE;
return texture_id;
}
else
{
/* This is the opportunistic path.
* We hit it both for drivers that do not support modifiers as well as for dmabufs
* that the driver did not explicitly advertise. */
int target;
if (gdk_gl_context_get_use_es (self))
target = GL_TEXTURE_EXTERNAL_OES;
else
target = GL_TEXTURE_2D;
texture_id = gdk_gl_context_import_dmabuf_for_target (self,
width, height,
dmabuf,
target);
if (texture_id == 0)
{
GDK_DISPLAY_DEBUG (display, DMABUF,
"Import of %dx%d %.4s:%#" G_GINT64_MODIFIER "x dmabuf failed",
width, height,
(char *) &dmabuf->fourcc, dmabuf->modifier);
return 0;
}
GDK_DISPLAY_DEBUG (display, DMABUF,
"Imported %dx%d %.4s:%#" G_GINT64_MODIFIER "x dmabuf as %s texture",
width, height,
(char *) &dmabuf->fourcc, dmabuf->modifier,
target == GL_TEXTURE_EXTERNAL_OES ? "GL_TEXTURE_EXTERNAL_OES" : "GL_TEXTURE_2D");
*external = target == GL_TEXTURE_EXTERNAL_OES;
return texture_id;
}
}
gboolean
gdk_gl_context_export_dmabuf (GdkGLContext *self,