It adds the followig paragraph:
```
Starting from version 5, the invalid_format protocol error is sent if
all planes don't use the same modifier.
```
We already assumed this in some places and, most importantly, it's
required by the kernel. Thus alter `dmabuf_attributes.modifier` to make
it clear that different modifiers for multi-planar dmabufs were never
supported.
Signed-off-by: Robert Mader <robert.mader@collabora.com>
Extract quad bounding box initialization from the GL renderer and move
it to a dedicated initialization function in the clipper. It's used by
both the renderer and the clipping test client, which further reduces
code duplication.
Signed-off-by: Loïc Molinari <loic.molinari@collabora.com>
Carry on the common vertex representation front by making boxes use
the clip_vertex struct.
A new function clip_quad_box32() is added to clearly separate the main
function taking a clip_vertex struct from the utility function taking
a pixman_box32 struct.
Signed-off-by: Loïc Molinari <loic.molinari@collabora.com>
Pass a clip_vertex struct and a size to clip_transformed() instead of
a polygon8 struct to simplify the clipper API by sticking to a common
vertex representation.
Simmplify vertex-clip test since clip_transformed() now works on a
copy of the polygon (commit edd5d1cc09).
Signed-off-by: Loïc Molinari <loic.molinari@collabora.com>
PIXMAN_a8r8g8b8 / PIXMAN_a8b8g8r8 only matches GL_BGRA_EXT / GL_BGRA on little-endian.
So to have a GL format, we should use DRM_FORMAT_ARGB8888 / DRM_FORMAT_ABGR8888.
Without GL_EXT_read_format_bgra, the read-back format is DRM_FORMAT_ABGR8888.
Then weston-screenshooter fails to create a wl_shm buffer with WL_SHM_FORMAT_ABGR8888,
unless it has been added with wl_display_add_shm_format.
Signed-off-by: Loïc Yhuel <loic.yhuel@softathome.com>
When gl_renderer_attach is called, surface->buffer_ref.buffer points to the buffer.
So if the surface state needs to be created, we have :
gl_renderer_attach -> get_surface_state -> gl_renderer_create_surface -> gl_renderer_attach
Fixes: 895b1fdcb2 ("gl-renderer: Attach buffer during surface state creation if possible")
Signed-off-by: Loïc Yhuel <loic.yhuel@softathome.com>
For drivers not supporting importing them directly. We use the equivalent
values to NV12 but with 16bit. The lowest 6 or 4 bits for P010/P012 are
padding and set to zero, so we can use the same subformats like for P016
and share the shader with NV12.
Signed-off-by: Robert Mader <robert.mader@collabora.com>
Stop flushing surfaces that are put on an overlay plane on the output to
be repainted next, but that have to be painted into another output's
primary_plane.
Now that each output has its own primary_plane, and flush_damage() knows
the output that is going to be repainted, texture_used can be limited to
surfaces that will actually be used by the renderer during the following
repaint_output().
Always upload when called from gl_renderer_surface_copy_content() or
gl_renderer_create_surface() with the output parameter set to NULL.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
When flush_damage() is called, the output to be repainted next is
already known. Pass it along into the renderer, which can make use
of this information:
The GL renderer can get a better idea which SHM surface textures
actually have to be updated, in case a surface can be put on a plane
on one output, but not another.
A future Vulkan renderer could record texture uploads into an output
specific command buffer.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
The primary_plane is currently shared amongst all outputs, and is the last
barrier to having overlapping outputs.
Split it up and make it per output instead.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Tracking the view's plane in the paint node in this way is a step towards
inflicting plane damage from paint node update during the output repaint,
instead of manually doing weston_view_damage_below().
We remove view->plane entirely and do all access through pnodes.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Now that we have visibility for views, we can clip that to an output
and store it in paint nodes.
This requires us to split the paint_node_update() function into two,
one for things that need to be done before assign_planes() and
one for after.
This will eventually be useful for tracking damage with paint nodes,
as we'll need to damage a paint node's entire visible area for
some operations.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Later, we'll want to use the visible region for damage tracking in
paint_nodes. For now, we can use it in the renderers where they've been
calculating it independently to draw paint nodes.
We still can't remove view->clip entirely, because
weston_view_damage_below() may be called before the first render of
a view, when its visible region hasn't been calculated yet. The
clip is empty at that point, which allows weston_view_damage_below()
to "work".
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
clang 17 complains that `fourcc` in `gl_renderer_fill_buffer_info()` is
uninitialized in the default case, because it fails to recognize that
if hit, that case will `assert(0)`. To get rid of this complaint, we can
just apply clang's suggestion and initialize the variable with 0 when
declaring it.
Signed-off-by: Max Ihlenfeldt <max@igalia.com>
After freeing the renderer, clear the compositor->renderer pointer to
avoid use-after-free errors.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Translate damage extents used to calculate glReadPixels rectangle from
global to local coordinates.
Fixes: b1606a9f2c ("gl-renderer: support automatically downloading FBO renderbuffers")
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
clip_quad() is a dedicated clipping function for quads that doesn't
depend on any GL renderer internal structures. It can be moved out to
the clipper to be called by both the renderer and the clipping test
client without having to duplicate code.
Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>
Since both the surface rect and the transformed quad are axis-aligned
in the simple clipping path, non-zero area detection can more
efficiently be checked post-clipping by comparing opposite edges.
Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>
Add a basic check to let the clipper take the simple axis-aligned path
when nodes are solely transformed with a translation and/or a scaling.
That makes some nodes like sub-surfaces (which always have their
transform enabled) take the fast path in the common case.
Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>
Move vertex clipper back to single-precision floating point
intermediates. Since positions are sent down the graphics hardware as
single-precision values, this prevents useless conversions between
single and double precision values and lets compilers fit twice as
much data into vector registers. It also removes a copy by letting the
clipper store vertices directly into the vertex buffer.
This is mostly reverting the conversion to double-precision that
happened along with the switch to the weston_coord struct for vertex
coordinates (commit 10e70bf23c).
Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>
Let the graphics hardware handle the transformation from surface
position to texture coordinates. Paint nodes now have a single vertex
position attribute from which texture coordinates are derived. A new
vertex shader variant handles the transformation.
Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>
The clipper transforms dirty rects to surface space before clipping.
Each dirty rect is transformed by the same matrix for each surface
rect. This change decouples the transformation and the clipping code
to transform and compute the bounding box of dirty rects just once.
Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>
Clip dirty rects to surface rects in surface coordinate space.
Dispatch vertices in surface coordinates and let the graphics hardware
handle the transformations. Clipping in global coordinate space
implies a useless roundtrip on the CPU to get the clipped polygons
back in surface coordinates for the buffer transformation. Clipping in
surface coordinate space prevents that.
This might seem counter-intuitive at first because in surface space
it's the dirty rects that are clipped to axis-aligned surface rects,
while it's the opposite in global space.
The projection matrix now combines the view and the output transforms.
Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>
For software backends like VNC, support downloading the FBO renderbuffer
contents via glReadPixels automatically at the end of repaint_output.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Add support for creating surfaceless outputs and rendering to FBOs.
The backend has to create FBOs with the create_fbo API and pass the
resulting weston_renderbuffer handles to repaint_output.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Remove the now unused previous/total_damage regions and the
buffer/border_damage arrays, as well as the output_get_damage and
output_rotate_damage functions.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Create dummy renderbuffers to track surface buffer damage on
demand. The renderbuffer representing the surface buffer that
is currently rendered to is inferred using buffer age.
This aligns damage tracking with the Pixman renderer and will
simplify adding FBO rendering support.
The previous/total_damage regions and the buffer/border_damage
arrays are now unused except for validation.
They can be removed next.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Split the buffer age query out into a separate function.
The following patches will replace the remainder of the
output_get_damage function.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Output repaint uses a pair of fence syncs to profile GPU execution by
retrieving their timestamps once signalled. While the end timestamp
can be rather inaccurate in some cases (drivers reusing sync objects
from previous command buffers), the begin timestamp is never correct
because fence syncs are signalled on command buffer completion.
Get rid of the begin fence sync and use the EXT_disjoint_timer_query
extension to measure the actual repaint duration and extrapolate the
begin timestamp from the end one.
Fixes#342
Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>
Remove the independent x, y floats from the clipping code and replace them
with struct weston_cord. This includes the polygon8 structure as well.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Whilst GLSL requires highp for the vertex shader stage, highp is
optional for the fragment shader.
Make sure that we work in highp by default during the vertex shader
stage, using either highp or mediump for the texcoord varying according
to what the fragment shader supports.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Update users of the old coordinate space conversion functions that take
x, y pairs to the new weston_coord versions.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Use struct pixel_format_info pointers instead of uint32_t drm fourcc
values at the API surface for output and image creation.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Let weston_output_update_capture_info() take a uint32_t drm_format
parameter directly instead of const struct pixel_format_info *format.
No other fields apart from the format were used from this structure.
Without this, callers may have to unnecessarily look up the pixel
format info in cases where the DRM fourcc is already available.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Add a struct weston_renderbuffer parameter to repaint_output and make
backends set the pixman image renderbuffer through this parameter
instead of using pixman_renderer_output_set_buffer()
Turn pixman_renderer_output_set_buffer() static.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
The blit_shadow_to_output() function leaves the generic vertex attrib
arrays 0 and 1 enabled. This commit disables them for consistency with
the other drawing calls of the renderer.
Signed-off-by: Loïc Molinari <loic.molinari@gmail.com>
