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3e2107846d
Commit Graph

49 Commits

Author SHA1 Message Date
Timm Bäder
3e2107846d gl renderer: Fix blend shader 2019-05-06 17:34:48 +02:00
Timm Bäder
c848b9014b gl renderer: Add simple blend node implementation 2019-04-28 07:58:31 +02:00
Timm Bäder
34fcfb154a gl renderer: Properly apply opacity in cross-fade shader 2019-04-24 13:29:45 +02:00
Timm Bäder
2b95a5daee gl renderer: Remove blend shader 
It's unused.
 2018-12-02 16:04:40 +01:00
Elias Aebi
19873e549a gl: implement clipping for legacy contexts 2018-07-14 14:31:50 +02:00
Elias Aebi
05ca6bc189 gl: fix compilation errors for legacy context shaders 2018-07-14 14:24:21 +02:00
Timm Bäder
eaf899061a gl renderer: Remove shadow program 
Drawing shadows is the same task as drawing text in our case and these
two shaders have been the same thing for quite a while.
 2018-03-15 18:12:00 +01:00
Timm Bäder
0a7880110e gl renderer: Fix clipped borders 
Stop abusing the clip rect for borders.
 2018-03-15 18:11:57 +01:00
Timm Bäder
d2b5436462 gl: Make blur nodes with radius ∈ ]0; 1[ 
Otherwise, the radius here ends up being 0 and we don't draw anything at
all.
 2018-02-27 14:22:08 +01:00
Timm Bäder
4946810960 gl renderer: Render unblurred outset shadows differently 
We don't need to draw anything to a texure for those.
 2018-01-15 10:56:43 +01:00
Timm Bäder
bbf6e81c1f gl renderer: Fix shaders for gles 
Remove uniform initializers, add casts to float, etc.
 2018-01-08 19:23:06 +01:00
Timm Bäder
cd2a53851b gl: Fix copy&paste error in blur shader 2018-01-08 19:23:06 +01:00
Timm Bäder
3176ae7e51 gl renderer: Use alpha uniform in inset shadow shader 2018-01-08 17:44:33 +01:00
Timm Bäder
f729cbb760 gl renderer: Fix text color pre-multiplication 2018-01-04 12:20:27 +01:00
Timm Bäder
4abbf929ad gl renderer: Remove some unused uniforms from shader 2017-12-29 05:48:42 +01:00
Timm Bäder
2bc10fa365 gl renderer: draw all outset shadows 
Instead of falling back to cairo for most of them.
 2017-12-29 05:48:40 +01:00
Timm Bäder
7a2d30323e gl renderer: try doing outset box shadows 
Still fall back in cases we can't handle that way.
 2017-12-21 19:12:33 +01:00
Timm Bäder
d211f42091 gl renderer: Remove unused vertex shader 2017-12-21 19:12:32 +01:00
Timm Bäder
a83037c440 gl renderer: Implement cross fade nodes 2017-12-21 19:12:32 +01:00
Timm Bäder
bed03aa319 gl renderer: Fix linear gradient shader color calculation 
This fixes both the wrong headerbar color and the broken border color in
of the circular button in the widget-factory.
 2017-12-21 19:12:32 +01:00
Timm Bäder
eb221ff305 gl renderer: Only take glyph texture alpha into account 
This way, we can use the very same coloring program to draw text shadows
of fonts with colored glyphs.
 2017-12-21 19:12:32 +01:00
Timm Bäder
64400e82b5 gl renderer: Default to 0px clip and border radius 
Finally fix the division by 0 in the clip code.
 2017-12-21 19:12:32 +01:00
Timm Bäder
2d3e87da46 gl renderer: Try to fix border rendering 2017-12-21 19:12:32 +01:00
Timm Bäder
fd0b7caa7c gl renderer: Fix shadow shader 
We need to take the alpha of the shadow color into account as well.
 2017-12-21 19:12:32 +01:00
Timm Bäder
3b7cfd068b gl renderer: Implement simple border nodes 2017-12-21 19:12:31 +01:00
Timm Bäder
e95b356465 gl renderer: Implement simple shadow nodes 2017-12-21 19:12:31 +01:00
Timm Bäder
8c9e203458 gl renderer: Fix inset shadow offset calculation 2017-12-21 19:12:31 +01:00
Timm Bäder
47c4bf5be0 gl renderer: Implement unblurred outset shadows 2017-12-21 19:12:31 +01:00
Timm Bäder
5c7838e168 gl renderer: Rework program creation 
Make sure all uniform names have to match between the shader names and
the _location integers we save in every Program struct.
 2017-12-21 19:12:31 +01:00
Timm Bäder
388157b995 gl renderer: Implement unblurred inset shadows 2017-12-21 19:12:31 +01:00
Timm Bäder
6a1a70c677 gl renderer: Implement blur nodes 2017-12-21 19:12:31 +01:00
Timm Bäder
f4304336ea gl renderer: Don't pass MVP to shaders 
We already pass both modelview and projection matrix individually.
 2017-12-21 19:12:30 +01:00
Timm Bäder
4cf2a482ea gl: Add glyph cache 
Based on the one used by the vulkan renderer
 2017-12-21 19:12:30 +01:00
Timm Bäder
9b400134d5 gl renderer: Remove unused shaders 2017-12-21 19:12:30 +01:00
Timm Bäder
33aa61ef2c gl renderer: Save clip in every node 2017-12-21 19:12:30 +01:00
Timm Bäder
24e69bb877 gl renderer: Implement rounded clip nodes 
mostly a proof of concept
 2017-12-21 19:12:30 +01:00
Timm Bäder
4aa3f51016 test-render-nodes: Add color matrix test 2017-12-21 18:25:52 +01:00
Timm Bäder
6bce14bee2 Rework the GL renderer 2017-12-21 18:25:52 +01:00
Timm Bäder
fbada8e758 glrenderer: Handle color nodes 2017-03-31 09:50:39 +02:00
Emmanuele Bassi
1ab1fd4391 Use the projection to flip around the content 
Since we use an FBO to render the contents of the render node tree, the
coordinate space is going to be flipped in GL. We can undo the flip by
using an appropriate projection matrix, instead of changing the sampling
coordinates in the shaders and updating all our coordinates at render
time.
 2016-10-18 11:49:10 +01:00
Emmanuele Bassi
03ab560fae gsk: Rename uniforms and attributes in shaders 
Use appropriate names, and annotate the names with the types — 'u' for
uniforms, 'a' for attributes. The common preambles for shaders are split
from the bodies, so we need some way to distinguish the uniforms and the
attributes just from their name.
 2016-10-18 11:49:09 +01:00
Emmanuele Bassi
c052443633 gsk: Use consistent naming for blend fragment shader 
This should make it immediately clear if we're doing something wrong.
 2016-10-18 11:49:08 +01:00
Emmanuele Bassi
0fbf638999 gsk: Add 'blit' program 
For the root node we do not need to use blending, as it does not have
any backdrop to blend into. We can use a simpler 'blit' program that
only takes the content of the source and fills the texture quad with
it.
 2016-10-18 11:49:08 +01:00
Emmanuele Bassi
a840c7f00c gsk: Add more modes to the blend shader 
Use the compositing CSS spec at:

  https://www.w3.org/TR/compositing-1/#blending

For the implementation.
 2016-10-18 11:49:07 +01:00
Emmanuele Bassi
28b490f14f gsk: Rework how GLSL shaders are built 
The GL renderer should build the GLSL shaders using GskShaderBuilder.
This allows us to separate the common parts into separate files, and
assemble them as necessary, instead of shipping one big shader per type
of GL API (GL3, GL legacy, and GLES).
 2016-10-18 11:49:07 +01:00
Emmanuele Bassi
638297a22e gsk: Allow sampling between parent and child nodes 2016-10-18 11:49:07 +01:00
Emmanuele Bassi
9d3ca22b4c gsk: Port GskGLRenderer to GLES 
Use the appropriate API and shaders if the GdkGLContext was created for
OpenGL ES instead of OpenGL.
 2016-10-18 11:29:34 +01:00
Emmanuele Bassi
eb9c0920ab gsk: Rename shaders for OpenGL 2016-10-18 11:29:34 +01:00
Emmanuele Bassi
7afdd3fdb5 Initial implementation of GSK rendering pipeline 
GSK is conceptually split into two scene graphs:

 * a simple rendering tree of operations
 * a complex set of logical layers

The latter is built on the former, and adds convenience and high level
API for application developers.

The lower layer, though, is what gets transformed into the rendering
pipeline, as it's simple and thus can be transformed into appropriate
rendering commands with minimal state changes.

The lower layer is also suitable for reuse from more complex higher
layers, like the CSS machinery in GTK, without necessarily port those
layers to the GSK high level API.

This lower layer is based on GskRenderNode instances, which represent
the tree of rendering operations; and a GskRenderer instance, which
takes the render nodes and submits them (after potentially reordering
and transforming them to a more appropriate representation) to the
underlying graphic system.
 2016-10-18 11:29:34 +01:00