Corrections in store_clip to store clip coordinates in AoS form.
Viewport & cliptest flag options based on variant key.
Put back draw_pt_post_vs and now 2 paths based on whether clipping
occurs or not.
Cliptesting now done at the end of vs in draw_llvm instead of
draw_pt_post_vs.
Added viewport mapping transformation and further cliptesting to
vertex shader in draw_llvm.c
Alternative path where vertex header setup, clip coordinates store,
cliptesting and viewport mapping are done earlier in the vertex
shader.
Still need to hook this up properly according to the return value of
"draw_llvm_shader" function.
We don't set the type on the array virtual reg as a whole, so here's
the right place.
Fixes:
glsl1-GLSL 1.20 arrays
glsl1-temp array with constant indexing, fragment shader
glsl1-temp array with swizzled variable indexing
We need to re-run channel expressions afterwards as it generates new
vector expressions, and we need to successfully support conditional
assignment (brw_CMP takes 2 operands, not 1).
While much of this we will want to support natively, this should make
the task of reaching the Mesa IR backend's quality easier.
Fixes:
glsl-fs-main-return.
New design seems to be on parity according to piglit,
make it default to get more exposure and see if there
is any show stopper in the coming days.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Sandybridge's PS constant buffer payload size is decided from
push const buffer command, incorrect size would cause wrong data
in payload for position and vertex attributes. This fixes coefficients
for tex2d/tex3d.
The driver actually creates a 3D texture aligned to POT and does all
the magic with texture coordinates in the fragment shader. It first
emulates REPEAT and MIRRORED wrap modes in the fragment shader to get
the coordinates into the range [0, 1]. (already done for 2D NPOT)
Then it scales them to get the coordinates of the NPOT subtexture.
NPOT textures are now less of a lie and we can at least display
something meaningful even for the 3D ones.
Supported wrap modes:
- REPEAT
- MIRRORED_REPEAT
- CLAMP_TO_EDGE (NEAREST filtering only)
- MIRROR_CLAMP_TO_EDGE (NEAREST filtering only)
- The behavior of other CLAMP modes is undefined on borders, but they usually
give results very close to CLAMP_TO_EDGE with mirroring working perfectly.
This fixes:
- piglit/fbo-3d
- piglit/tex3d-npot
Taking the W component from coords directly ignores swizzling. Instead,
take the component which is mapped to W in the TEX instruction parameter.
The same for Z.
NOTE: This is a candidate for the 7.9 branch.
