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i965/fs: Rename "length" to "components" in emit_mcs_fetch().

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This is slightly clearer.  Based on a patch by Connor Abbott.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
This commit is contained in:
Kenneth Graunke 2014-09-01 02:17:41 -07:00
parent fa212c6b98
commit 465373535e
1 changed files with 6 additions and 6 deletions
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12
src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
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@ -1811,24 +1811,24 @@ fs_reg
fs_visitor::emit_mcs_fetch(ir_texture *ir, fs_reg coordinate, fs_reg sampler)
{
int reg_width = dispatch_width / 8;
int length = ir->coordinate->type->vector_elements;
fs_reg payload = fs_reg(GRF, virtual_grf_alloc(length * reg_width),
int components = ir->coordinate->type->vector_elements;
fs_reg payload = fs_reg(GRF, virtual_grf_alloc(components * reg_width),
BRW_REGISTER_TYPE_F);
fs_reg dest = fs_reg(this, glsl_type::uvec4_type);
fs_reg *sources = ralloc_array(mem_ctx, fs_reg, length);
fs_reg *sources = ralloc_array(mem_ctx, fs_reg, components);
/* parameters are: u, v, r; missing parameters are treated as zero */
for (int i = 0; i < length; i++) {
for (int i = 0; i < components; i++) {
sources[i] = fs_reg(this, glsl_type::float_type);
emit(MOV(retype(sources[i], BRW_REGISTER_TYPE_D), coordinate));
coordinate = offset(coordinate, 1);
}
emit(LOAD_PAYLOAD(payload, sources, length));
emit(LOAD_PAYLOAD(payload, sources, components));
fs_inst *inst = emit(SHADER_OPCODE_TXF_MCS, dest, payload, sampler);
inst->base_mrf = -1;
inst->mlen = length * reg_width;
inst->mlen = components * reg_width;
inst->header_present = false;
inst->regs_written = 4 * reg_width; /* we only care about one reg of
* response, but the sampler always