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Could previously emit opcodes with label arguments, but was no way to
patch them with the actual destinations of those labels.
Adds two functions:
ureg_get_instruction_number - to get the id of the next instruction
to be emitted
ureg_fixup_label - to patch an emitted label to point to a given
instruction number.
Need some more complex examples than u_simple_shader, so far this has
only been compile-tested.
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Fixes piglit fp-generic tests/shaders/generic/lrp_sat.fp, bug 23316.
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This fixes invalid values for CondStackTop, LoopStackTop, etc.
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Also fix a typo in ureg_src().
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This previously was used only for decomposed (POINT/LINE/TRI) primitives,
but for some time a full range of primitives could end up in here.
Fixes trivial/lineloop-clip on softpipe, among others.
(cherry picked from commit 87cd8a3b8a2407b30916be418ff2f95dfea5d2ad)
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Our fallback realloc path requires an old_size argument, but the posix
varient doesn't need this. Add some code to avoid gcc unused variable
warnings for this extra argument.
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Much nicer now.
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This is modelled on the nice & easy-to-use facilities we had
for building shaders in mesa, eg. in texenvprogram.c and friends.
Key points include pass-by-value register structs that can be manipulated
in a functional style, eg:
negate(swizzle(reg, X,X,X,X))
and per-opcode instruction functions, eg:
emit_MOV( p, writemask(dst, 0x1), negate(src));
and similar.
Additionally, the interface allows mixed emit of instructions and decls,
which are sorted out internally to obey TGSI ordering.
Immediates may be emitted at any time and are scanned against existing
immediates to try and reduce redundancy.
Not all TGSI functionality is accessible through this interface, but
most or all of what mesa uses should be.
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This branch introduces new FRAG_ATTRIB_FACE and FRAG_ATTRIB_PNTC fragment
program inputs for GLSL gl_FrontFacing and gl_PointCoord. Before, these
attributes were packed with the FOG attribute. That made things
complicated elsewhere.
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We need aditional meta data about the usage of the surface
in softpipe because we need to be able tell the diffrence
between PRIMARY and DISPLAY_TARGET surfaces.
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minify() is usually used in mipmap size calculation. Strangely enough,
we all defined it as MAX2(1, d >> 1); imagine that. :3
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Check that the dest surface/format is renderable.
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Check that the dest surface/format is renderable.
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Conflicts:
src/mesa/main/state.c
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A comment alluded to this. Now it's checked.
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For the surface_copy() path require same format, no flipping and no stretching.
Fixes progs/tests/copypixrate -blit
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progs/glsl/pointcoord.c works again
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The LOOP/ENDLOOP pair is renamed to BGNFOR/ENDFOR as its behaviour
is similar to a C language for-loop.
The BGNLOOP2/ENDLOOP2 pair is renamed to BGNLOOP/ENDLOOP as now
there is no name collision.
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The only valid usage for LOOP/ENDLOOP instructions
is LOOP[0] as a destination register.
The only valid usage for the remaining instructions
is LOOP[0].x as an indirect register.
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When sampling a 2D shadow map we need 3 texcoord components, not 2.
The third component (distance from light source) is compared against
the texture sample to return the result (visible vs. occluded).
Also, enable proper handling of TGSI_TEXTURE_SHADOW targets in Mesa->TGSI
translation. There's a possibility for breakage in gallium drivers if
they fail to handle the TGSI_TEXTURE_SHADOW1D / TGSI_TEXTURE_SHADOW2D /
TGSI_TEXTURE_SHADOWRECT texture targets for TGSI_OPCODE_TEX/TXP instructions,
but that should be easy to fix.
With these changes, progs/demos/shadowtex.c renders properly again with
softpipe.
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The leading underscore is meaningful... This function is used by
_warning and _error functions as well as the more common
debug_printf().
debug_printf (without underscore) gets turned off when DEBUG is
disabled, but warning/error messages still use this function to get
their message out.
(cherry picked from commit 0ac879dca797360570543d5bd0fd64f8fb8e566e)
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Conflicts:
Makefile
configs/default
docs/relnotes.html
src/mesa/main/version.h
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This changed after a recent commit.
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