diff options
| author | Luca Barbieri <[email protected]> | 2011-02-16 00:14:49 +0100 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2011-03-29 12:04:55 +0200 |
| commit | 47e3896dfd89a26abbe4ca2469c2480f3982b204 (patch) | |
| tree | 3f64fd4340c66ee84da89506afd92c1f29f6dbb7 /src/gallium/docs | |
| parent | e5c6a92a12b5cd7db205d72039f58d302b0be9d5 (diff) | |
gallium: implement clamping controls (ARB_color_buffer_float)
BTW this changes the gallium interface.
Some rather cosmetic changes by Marek.
Squashed commit of the following:
commit 513b37d484f0318311e84bb86ed4c93cdff71f13
Author: Luca Barbieri <[email protected]>
Date: Thu Aug 26 18:17:54 2010 +0200
mesa/st: respect fragment clamping in st_DrawPixels
commit 546a31e42cad459d7a7a10ebf77fc5ffcf89e9b8
Author: Luca Barbieri <[email protected]>
Date: Thu Aug 26 18:17:28 2010 +0200
mesa/st: support fragment and vertex color clamping
commit c406514a1fbee6891da4cf9ac3eebe4e4407ec13
Author: Luca Barbieri <[email protected]>
Date: Tue Aug 24 21:56:37 2010 +0200
mesa/st: expose ARB_color_buffer_float if unclamping is supported
commit d0c5ea11b6f75f3da2f4ca989115f150ebc7cf8d
Author: Luca Barbieri <[email protected]>
Date: Thu Aug 26 17:53:41 2010 +0200
mesa/st: use unclamped colors
This assumes that Gallium is to be interpreted as given drivers the
responsibility to clamp these colors if necessary.
commit aef5c3c6be6edd076e955e37c80905bc447f8a82
Author: Luca Barbieri <[email protected]>
Date: Thu Aug 26 18:12:34 2010 +0200
mesa, mesa/st: handle read color clamping properly
We set IMAGE_CLAMP_BIT in the caller based on _ClampReadColor, where
the operation mandates it. (see the removed XXX comment. -Marek)
TODO: did I get the set of operations mandating it right?
commit 76bdfcfe3ff4145a1818e6cb6e227b730a5f12d8
Author: Luca Barbieri <[email protected]>
Date: Thu Aug 26 18:18:25 2010 +0200
gallium: add color clamping to the interface
Diffstat (limited to 'src/gallium/docs')
| -rw-r--r-- | src/gallium/docs/source/cso/rasterizer.rst | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/gallium/docs/source/cso/rasterizer.rst b/src/gallium/docs/source/cso/rasterizer.rst index d547055096f..e10c16ed900 100644 --- a/src/gallium/docs/source/cso/rasterizer.rst +++ b/src/gallium/docs/source/cso/rasterizer.rst @@ -7,6 +7,30 @@ The rasterizer state controls the rendering of points, lines and triangles. Attributes include polygon culling state, line width, line stipple, multisample state, scissoring and flat/smooth shading. +Linkage + +clamp_vertex_color +^^^^^^^^^^^^^^^^^^ + +If set, TGSI_SEMANTIC_COLOR registers are clamped to the [0, 1] range after +the execution of the vertex shader, before being passed to the geometry +shader or fragment shader. + +OpenGL: glClampColor(GL_CLAMP_VERTEX_COLOR) in GL 3.0 or GL_ARB_color_buffer_float + +D3D11: seems always disabled + +clamp_fragment_color +^^^^^^^^^^^^^^^^^^^^ + +Controls whether TGSI_SEMANTIC_COLOR outputs of the fragment shader +are clamped to [0, 1]. + +OpenGL: glClampColor(GL_CLAMP_FRAGMENT_COLOR) in GL 3.0 or ARB_color_buffer_float + +D3D11: seems always disabled + + Shading ------- |