Commit graph

270 commits

Author SHA1 Message Date
Simon Ser
fe06e5f49a Use wl_container_of() instead of casts
This slightly improves type safety.

The culprits were found with:

    git grep -E '\([a-z0-9_ ]+ \*\)\W?[a-z]'
2023-07-11 20:16:17 +02:00
Simon Ser
c2c536de03 render/gles2: drop unnecessary cast
We can just refer to the struct field here.
2023-07-11 20:15:45 +02:00
Simon Ser
7a9f8d8d6b Use struct initializers instead of memset()
This is a bit more type-safe.
2023-07-07 17:31:11 +02:00
Alexander Orzechowski
2044cc2311 render: Introduce wlr_render_texture_options.blend_mode 2023-06-19 13:16:34 -04:00
Alexander Orzechowski
6bd44c4fcd renderer: Introduce wlr_scale_filter_mode 2023-06-19 12:25:38 -04:00
Alexander Orzechowski
398c6b66c6 render/gles2: Handle NULL timer 2023-06-06 02:17:10 -04:00
Rose Hudson
45ca284eee render/gles2: implement timer API 2023-06-05 19:50:07 +00:00
Rose Hudson
9e8947e4d5 add render timer API
Based on five calls:
wlr_render_timer_create - creates a timer which can be reused across
  frames on the same renderer
wlr_renderer_begin_buffer_pass - now takes a timer so that backends can
  record when the rendering starts and finishes
wlr_render_timer_get_time - should be called as late as possible so that
  queries can make their way back from the GPU
wlr_render_timer_destroy - self-explanatory

The timer is exposed as an opaque `struct wlr_render_timer` so that
backends can store whatever they want in there.
2023-06-05 19:50:07 +00:00
Alexander Orzechowski
8af00d5534 renderer/gles2: Implement render pass interface 2023-05-28 14:53:34 -04:00
Alexander Orzechowski
b1d26ed47b renderer/gles2: Compute texture coordinates based off of vertex positions 2023-05-28 14:53:34 -04:00
Alexander Orzechowski
45b2a8eee2 renderer/gles2: Merge get_buffer and create_buffer 2023-05-28 14:53:34 -04:00
Alexander Orzechowski
6f67bfe5ab renderer/gles2: Interpret matrix as column major in shader
Avoids us needing to transpose.
2023-05-28 14:53:34 -04:00
Simon Ser
96f3f3c92e render/pixel-format: add support for block-based formats
Some formats like sub-sampled YCbCr use a block of bytes to
store the color values for more than one pixel. Update our format
table to be able to handle such formats.
2023-05-21 20:28:45 +00:00
Manuel Stoeckl
40dde59475 render/gles2: use byte-aligned rows for glReadPixels
Setting the GLESv2 parameter GL_PACK_ALIGNMENT to 1 ensures that the
stride of the glReadPixels output matches the value computed in
`pack_stride`. Since the default value of GL_PACK_ALIGNMENT is 4, this
does not make a difference under normal use; but without this patch
the stride can be incorrect; for example, with RGB565 buffers and
screenshots of regions with odd width.
2023-04-12 14:04:25 +00:00
Simon Ser
677a3f2f88 render/gles2: default to highp if available
The spec [1] says that the maximum value for a mediump float
is at least 2¹⁴ in section 4.5.2. However, when using a 4k
resolution texture coordinates will exceed this value. This causes
issues on drivers which implement mediump as a 16-bit [2].

Switch to highp. There's a twist: on GLES2, support for highp is
optional. So we need to guard it with cute GL_FRAGMENT_PRECISION_HIGH
ifdefs.

[1]: https://registry.khronos.org/OpenGL/specs/es/2.0/GLSL_ES_Specification_1.00.pdf
[2]: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21082
2023-02-02 22:54:13 +01:00
Simon Ser
0534d12b28 render/gles2: use correct type for shader type
Doesn't matter a lot, but let's try to be consistent with the
GL headers.
2023-02-02 22:42:42 +01:00
Alexander Orzechowski
db0e962368 wlr_texture: Expose owning renderer 2022-12-01 04:41:43 -05:00
Simon Ser
6e88eeadeb render/pixel_format: import pixel_format_info_check_stride()
We'll use this function from wlr_shm too.

Add some assertions, use int32_t (since the wire protocol uses that,
and we don't want to use 16-bit integers on exotic systems) and
switch the stride check to be overflow-safe.
2022-11-15 16:30:00 +00:00
Simon Ser
261d6998fb render/gles2: query glGetGraphicsResetStatusKHR
Call glGetGraphicsResetStatusKHR in wlr_renderer_begin to figure
out when a GPU reset occurs. Destroy the renderer when this
happens (the OpenGL context is defunct).
2022-11-15 15:50:19 +00:00
Simon Ser
23540b5579 render: allow wlr_renderer_impl.begin to fail
Make it return a bool to indicate success/failure. Adapt the
various implementations to check errors.
2022-11-15 15:50:19 +00:00
Simon Ser
6baf045590 render/texture: constify wlr_texture_update_from_buffer() 2022-11-11 23:11:17 +00:00
Simon Ser
4d04144b92 render/gles2: de-duplicate vertex shaders
The vertex shaders for quads and textures are identical.
2022-10-28 13:49:03 +02:00
Simon Ser
d69018c195 render/gles2: move color uniform from quad.vert to quad.frag
We have no use for a v_color varying. We can use the uniform
directly from the fragment shader without getting the vertex shader
involved.
2022-10-28 13:49:03 +02:00
Simon Ser
a75f9be2e8 render/gles2: move shaders to individual files
Instead of having a C file with strings for each shader, move each
shader into its own file. Use a small POSIX shell script to convert
the files into C strings (can't wait for C23 #embed...).

The benefits from this are:

- Improved readability and syntax highlighting.
- Line numbers in shader compiler errors are easier to make sense of.
- Consistency with the Vulkan renderer.
- Shaders will become more complicated as we add color management
  features.
2022-10-28 11:46:06 +00:00
Simon Ser
bc416ed752 render/gles2: log error on shader compilation failure 2022-10-27 16:43:03 +02:00
Simon Ser
9549749507 render/gles2: assert that GL_OES_EGL_image_external is supported
The target is set to GL_TEXTURE_EXTERNAL_OES when
EGL_EXT_image_dma_buf_import_modifiers [1] returns an external_only
flag. That spec states:

> In order to support imports for the GL_TEXTURE_EXTERNAL_OES target, a
> compatible OpenGL ES implementation supporting GL_OES_EGL_image_external
> must be present.

Fail hearder when a driver doesn't follow the spec instead of
skipping rendering.

See [2].

[1]: https://registry.khronos.org/EGL/extensions/EXT/EGL_EXT_image_dma_buf_import_modifiers.txt
[2]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3631#note_1584343
2022-10-10 07:54:35 +00:00
Simon Ser
6832ae14aa render: drop wlr_renderer_read_pixels() flags
These are unused.
2022-10-04 09:15:19 +02:00
Alexander Orzechowski
ef4baea0e2 Use wl_signal_emit_mutable 2022-08-18 07:16:16 -04:00
Simon Ser
98cf38601f render: replace wlr_texture_write_pixels with update_from_buffer
This lets the renderer handle the wlr_buffer directly, just like it
does in texture_from_buffer. This also allows the renderer to batch
the rectangle updates, and update more than the damage region if
desirable (e.g. too many rects), so can be more efficient.
2022-08-12 08:41:32 +00:00
Manuel Stoeckl
972a5cdf7a render/gles2: simplify alpha depth check
GL_ALPHA_BITS is the number of bits of the alpha channel of the
currently bound frame buffer's color buffer -- which is precisely
renderer->current_buffer->rbo . Thus, instead of binding the color
buffer and checking its properties, we can query the already bound
frame buffer.

Note that GL_IMPLEMENTATION_COLOR_READ_{FORMAT,TYPE} are also
properties of frame buffer's color buffer.
2022-07-20 20:02:46 -04:00
Simon Ser
c20468cfa2 render: use internal_features to indicate EGL support
Instead of checking whether the wlr_egl dependencies are available
in the GLES2 code, introduce internal_features['egl'] and check
that field.

When updating the EGL dependency list, we no longer need to update
the GLES2 logic.
2022-06-24 07:20:42 +02:00
Simon Ser
b9d55b8769 render/gles2: check GBM is found
The GLES2 renderer depends on EGL, which depends on GBM for device
selection.
2022-06-24 07:16:41 +02:00
Simon Ser
29291cb47c render/texture: drop wlr_texture_is_opaque
Whether a texture is opaque or not doesn't depend on the renderer
at all, it just depends on the source buffer. Instead of forcing
all renderers to implement wlr_texture_impl.is_opaque, let's move
this in common code and use the wlr_buffer format to know whether
a texture will be opaque.
2022-06-16 14:43:24 +02:00
Simon Ser
96b594110d matrix: remove wlr_matrix_projection()
69477051cc ("matrix: deprecate wlr_matrix_projection") marked it
as deprecated. 1 year later, we can now remove it from our public
API.
2022-06-08 19:27:36 +00:00
Simon Ser
c2e046022f render/gles2: simplify flipped projection
Instead of computing the projection, then flipping, just provide
the correct transform to wlr_matrix_projection().
2022-06-08 19:27:36 +00:00
Simon Ser
bb2946f737 build: make GBM optional
Now that the DRM backend no longer depends on GBM, we can make it
optional. The GLES2 renderer still depends on it because of our EGL
device selection.

This is useful for compositors with their own renderers, and for
compositors using the Vulkan renderer.
2022-05-30 13:30:08 +00:00
Manuel Stoeckl
7ad67e0f1d render/gles: add support for some 16-bpc unsigned shm formats
These formats require EXT_texture_norm16, which in turn needs OpenGL
ES 3.1. The EXT_texture_norm16 extension does not support passing
gl_internalformat = GL_RGBA to glTexImage2D, as can be done for
formats available in OpenGL ES 2.0, so this commit adds a field to
wlr_gles2_pixel_format to provide a more specific internalformat
parameter to glTexImage2D.
2022-05-07 16:25:38 +00:00
Thomas Hebb
59b9518f07 render/gles2: don't constrain shm formats to ones that support reading
commit 44e8451cd9 ("render/gles2: hide shm formats without GL
support") added the is_gles2_pixel_format_supported() function to
render/gles2/pixel_format.c, whose stated purpose is to "check whether
the renderer has the needed GL extensions to read a given pixel format."
It then used that function to filter the pixel formats returned by
get_gles2_shm_formats().

The result of this change is that RGB formats are no longer reported for
GL drivers that don't implement EXT_read_format_bgra, even when those
formats are supported for rendering (which they have to be for
wlr_gles2_renderer_create() to succeed). This is a pretty clear
regression, since wlr_renderer_init_wl_shm() fails when either of
WL_SHM_FORMAT_ARGB8888 or WL_SHM_FORMAT_XRGB8888 are missing.

To fix the regression, change is_gles2_pixel_format_supported() to
accept all pixel formats that support rendering, regardless of whether
we can read them or not, and move the check for EXT_read_format_bgra
back into gles2_read_pixels(). (There's already a check for this
extension in gles2_preferred_read_format(), so we're not breaking any
abstraction that wasn't already broken.)

Tested on the NVIDIA 495.46 proprietary driver, which doesn't support
EXT_read_format_bgra.

Fixes: 44e8451cd9 ("render/gles2: hide shm formats without GL support")
2022-01-05 15:48:29 -08:00
Simon Ser
a04cfca4da Remove support for DMA-BUF flags
They are never used in practice, which makes all of our flag
handling effectively dead code. Also, APIs such as KMS don't
provide a good way to deal with the flags. Let's just fail the
DMA-BUF import when clients provide flags.
2021-11-17 16:12:59 +00:00
Simon Zeni
9579d62a16 types/buffer: make {begin,end}_data_ptr_access part of the public API 2021-09-15 11:50:44 +02:00
Simon Ser
4e7a8707cc buffer: add data_ptr access flags
This allows callers to specify the operations they'll perform on
the returned data pointer. The motivations for this are:

- The upcoming Linux MAP_NOSIGBUS flag may only be usable on
  read-only mappings.
- gbm_bo_map with GBM_BO_TRANSFER_READ hurts performance.
2021-09-10 13:16:10 -04:00
Simon Ser
ad7651a370 render/gles2: make wlr_gles2_texture a wlr_buffer addon 2021-08-12 10:22:19 +02:00
Simon Ser
ee1156b62b render/gles2: make wlr_gles2_buffer an addon
Saves us from walking a list.
2021-08-12 10:22:19 +02:00
Manuel Stoeckl
f5df956c18 render/gles2: add a few 10-bit and FP16 formats
The half-float formats depend on GL_OES_texture_half_float_linear,
not just the GL_OES_texture_half_float extension, because the latter
does not include support for linear magni/minification filters.

The new 2101010 and 16161616F formats are only available on little-
endian builds, since their gl_types are larger than a byte and thus
endianness dependent.
2021-07-30 08:29:13 +02:00
Manuel Stoeckl
44e8451cd9 render/gles2: hide shm formats without GL support
This change introduces a new function to check whether the renderer
has the needed GL extensions to read a given pixel format.
2021-07-30 08:29:13 +02:00
Simon Ser
f76960388f render/gles2: add support for some 24 and 16-bit formats
On little-endian, we can enable pixel formats which don't use
gl_type = GL_UNSIGNED_BYTE. See [1].

[1]: https://afrantzis.com/pixel-format-guide/
2021-07-29 10:47:34 -04:00
Simon Ser
2fa47c1837 render: drop wlr_renderer_impl.init_wl_display
Now that we have our own wl_drm implementation, there's no reason
to provide custom renderer hooks to init a wl_display in the
interface. We can just initialize the wl_display generically,
depending on the renderer capabilities.
2021-07-22 14:10:26 -04:00
Simon Ser
5544973814 render/gles2: disable blending opportunistically
We don't always need to enable blending: when the texture doesn't
have alpha or when the color is opaque, we can disable it.
2021-07-12 09:16:09 -04:00
Simon Ser
9dba176e8d render/gles2: set has_alpha for DMA-BUFs
Use our internal pixel format table to figure out whether an
imported DMA-BUF has alpha.
2021-07-12 09:16:09 -04:00
Simon Ser
9b70eab194 render/gles2: rename wlr_egl.exts to better match Khronos
Khronos refers to extensions with their namespace as a prefix in
uppercase. Change our naming to align with Khronos conventions.
This also makes grepping easier.
2021-07-12 09:13:49 -04:00