Commit Graph

7 Commits

Author SHA1 Message Date
Christian Hergert
f9268e8137 gsk/gl: support non-standard default framebuffer
There are situations where our "default framebuffer" is not actually
zero, yet we still want to apply a scissor rect.

Generally, 0 is the default framebuffer. But on platforms where we need
to bind a platform-specific feature to a GL_FRAMEBUFFER, we might have a
default that is not 0. For example, on macOS we bind an IOSurfaceRef to
a GL_TEXTURE_RECTANGLE which then is assigned as the backing store for a
framebuffer. This is different than using gsk_gl_renderer_render_texture()
in that we don't want to incur an extra copy to the destination surface
nor do we even have a way to pass a texture_id into render_texture().
2022-02-22 12:01:24 -08:00
Christian Hergert
08d0575ed0 gsk/gl: avoid clearing opaque regions
If the rendering operation is over an opaque region, we can potentially
avoid clearing a large section of the framebuffer destination. Some cases
you do want to clear, such as when clearing the whole contents as some
drivers have fast paths for that to avoid bringing data back into the
framebuffer.
2022-02-21 23:43:17 -08:00
Benjamin Otte
2ce2afa036 gles: Be picky abpout glGetFramebufferAttachmentParameter()
This function does not at all work like in OpenGL - if it works at all.
So make it behave accordingly.

Fixes #4571
2021-12-25 15:07:44 +01:00
Timm Bäder
fd6b3ef5a0 gl: Linear gradients don't support 3d transforms
Add another helper similar to the one for transforms, but that only
works on 2d transforms.

Fixes #4501
2021-12-12 12:57:44 +01:00
Benjamin Otte
95574f98c4 gl: Use GL_BACK_LEFT
The spec doesn't allow GL_BACK, but many drivers do. Use the
spec-accepted equivalent instead.

Fixed #4402
2021-11-03 22:53:59 +01:00
Matthias Clasen
49a64da7ec Merge branch 'ngl-is-the-new-gl' into 'master'
Rename ngl to gl

Closes #4318

See merge request GNOME/gtk!4037
2021-10-11 06:43:41 +00:00
Matthias Clasen
144f727d5a Rename ngl to gl
We have only one gl renderer now, and it is
a bit odd for it not be called gl.
2021-10-07 13:05:53 -04:00