They are either unit tests or to demonstrate how functions are supposed
to be used. The unit test is outdated and it should be better to take a
look at any of the working drivers to see how a function is used.
if independent blend state was disabled, only the data from first rt was
stored, however the comparison used the full state, hence there never was
a match and always a new object was created.
Fixes a huge performance drop with llvmpipe due to recompilation.
Commit 2708ddfb06 caused a few regressions.
We need to check/validate state after calling bind_arrays() because
it might set the _NEW_ARRAYS flag if the varying VP inputs change.
The symptom of this problem was some attribute arrays being ignored
(or interpreted as constant-valued) in glDrawRangeElements or
glMultiDrawElements.
A follow-on patch will add some additional asserts to try to catch
this kind of thing in the future.
(cherry picked from commit 3cba779e16)
mesa: do state validation in _mesa_valid_to_render()
...rather than checking/validating before all the calls to
_mesa_valid_to_render() and valid_to_render().
The next patch will actually fix some bugs...
(cherry picked from commit 23eda89ec8)
mesa: Warn when indices are out of bounds, but do not skip the draw in debug builds.
The driver (or preferably the hardware) should handle out of bounds
indices.
If there are problems then it's better to detect those in the debug
builds.
(cherry picked from commit e3257912e0)
softpipe: support all TGSI fragment coord conventions (v4)
Changes in v4:
- Rebase and modify for changes in previous patches
Changes in v3:
- Use positive caps instead of negative caps
Changes in v2:
- Now takes the fragment convention directly from the fragment shader
Adds internal support for all fragment coord conventions to softpipe.
This patch is not required for use with the current state trackers, but it
allows softpipe to run any TGSI program and enhances performance.
st/mesa: Gallium support for ARB_fragment_coord_conventions (v4)
Changes in v4;
- Implemented Brian Paul's style suggestions
Changes in v3:
- Use positive caps instead of negative ones
Changes in v2:
- Updated formatting
The state tracker will use the TGSI convention properties if the hardware
exposes the appropriate capability, and otherwise adjust WPOS itself.
This will also fix some drivers that were previously broken due to their
incorrect, inadvertent, use of conventions other than upper_left+half_integer.
tgsi: add caps for fragment coord conventions (v3)
Changes in v3:
- Renumber caps to accomodate caps to add to master in the meantime
- Document caps
- Add unsupported caps to *_screen.c too
Changes in v2:
- Split for properties patch
- Use positive caps instead of negative caps
This adds 4 caps to indicate support of each of the fragment coord
conventions.
All drivers are also modifed to add the appropriate caps.
Some drivers were incorrectly using non-Gallium-default conventions,
and caps for them have them set so that they will behave correctly
after the later state tracker patches.
This drivers are softpipe/llvmpipe (uses integer rather than half
integer) and pre-nv50 Nouveau (uses lower left rather than upper left).
Other drivers might be broken. With this patchset, fixing them is
only a matter of exposing the appropriate caps that match the behavior
of the existing code.
Drivers are encouraged to support all conventions themselves for better
performance, and this feature is added to softpipe in a later patch.
tgsi: add properties for fragment coord conventions (v3)
Changes in v3:
- Documented the new properties
- Added comments for property values
- Rebased to current master
Changes in v2:
- Caps are added in a separate, subsequent patch
This adds two TGSI fragment program properties that indicate the
fragment coord conventions.
The properties behave as described in the extension spec for
GL_ARB_fragment_coord_conventions, but the default origin in
upper left instead of lower left as in OpenGL.
The syntax is:
PROPERTY FS_COORD_ORIGIN [UPPER_LEFT|LOWER_LEFT]
PROPERTY FS_COORD_PIXEL_CENTER [HALF_INTEGER|INTEGER]
The names have been chosen for consistency with the GS properties
and the OpenGL extension spec.
The defaults are of course the previously assumed conventions:
UPPER_LEFT and HALF_INTEGER.
mesa: don't expose GL_ARB_fragment_coord_conventions until the GLSL part is done
Exposing it was incorrect, as the GLSL part of the extension is
missing.
We still keep the ARB_fragment_coord_conventions field, so that the
ARBfp parser can know whether to accept or reject the keywords.
Vinson Lee