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The padding was there to indicate the amount of space left from the
number of expected bytes in the struct minus allocated bits. But
uint bitfields get packed so that they don't cross uint boundaries, and we
ended up allocating an extra dword to hold the pad field!
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Never set in mesa. Remove from tgsi translation as well.
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This is just the first step of refactoring. The separation is not yet
clean enough with this commit.
Signed-off-by: Nicolai Hähnle <nhaehnle@gmail.com>
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This function will check an instruction to see if there's data dependencies
between the dst and src registers if executed in an SOA manner.
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There's really no need for two negation fields. This came from the
GL_NV_fragment_program extension. The new, unified Negate bitfield applies
after the absolute value step.
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This was never fully fleshed out and hasn't been used.
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See bug 20319.
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The i965 driver needs an extra instruction field for color output information.
It was using the Sampler field for this. Use the Aux field instead. This
will probaby be revisited at some point...
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If the instruction is TEX/TXP/TXL/etc the TexShadow field will be true if
the instruction is a texture fetch with shadow compare.
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Old limit was 256. Note that no arrays are declared to this size.
The only place we have to be careful about raising this limit is the
prog_src/dst_register Index bitfields. These have been bumped up too.
Added assertions to check we don't exceed the bitfield in the future too.
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(cherry picked from commit f7d80aa00611917bc8ce637136d982b151b8f44f)
This also involved adding the new MSAA fields to driCreateConfigs().
Also, re-add prog_instructions->Sampler field for i965 driver. Will
have to revisit that.
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Conflicts:
src/mesa/shader/prog_execute.c
src/mesa/shader/slang/library/slang_vertex_builtin_gc.h
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register indexing
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We may emit these instructions from GLSL instead of DP3/RCP/MUL.
Also, implement SSG (set sign) instruction in the interpreter.
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Trunc is a more accurate description; there's no type conversion involved.
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Previously, the shader linker combined the uniforms used by the vertex and
fragment shaders into a combined set of uniforms. This made the implementation
of glUniform*() simple, but was rather inefficient otherwise. Now each shader
gets its own set of uniforms (no more modelview matrix showing up in the
fragment shader uniforms, for example).
cherry-picked by hand from gallium-0.1 branch
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New _mesa_num_inst_dst_regs(), _mesa_is_tex_instruction() functions
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cherry-picked from gallium-0.1
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GLSL sampler variables indicate which texture unit to use for TEX instructions.
Previously, this was baked into the fragment/vertex program and couldn't be
readily changed once set.
Now, SamplerUnits[] array indicates which texture unit is to be used for
each sampler variable. These values are set with glUniform1i().
This is extra state that must be passed to the fragment/vertex program
executor at runtime.
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Handle TGSI labels correctly.
Enhance MESA opcode info queries.
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ctx->Shader.EmitCondCodes determines if we use condition codes.
If not, IF statement uses first operand's X component as the condition.
Added OPCODE_BRK0, OPCODE_BRK1, OPCODE_CONT0, OPCODE_CONT1 to handle
the common cases of conditional break/continue.
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git+ssh://brianp@git.freedesktop.org/git/mesa/mesa into glsl-compiler-1
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New high-level flow-control instructions, both at IR level and GPU instructions
for looping and subroutines.
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vec2 v; v.x = v.y = 1.0; // chained assignment
vec4 v; v.zx = vec2(a,b); // swizzled writemask
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