diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vs_emit.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c index 3807dff9919..ad7431a19bc 100644 --- a/src/mesa/drivers/dri/i965/brw_vs_emit.c +++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c @@ -60,7 +60,7 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c ) /* Deal with curbe alignment: */ - reg += ((6+c->key.nr_userclip+3)/4)*2; + reg += ((6+c->key.nr_userclip + 3) / 4) * 2; } /* Vertex program parameters from curbe: @@ -77,7 +77,7 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c ) */ c->nr_inputs = 0; for (i = 0; i < VERT_ATTRIB_MAX; i++) { - if (c->prog_data.inputs_read & (1<<i)) { + if (c->prog_data.inputs_read & (1 << i)) { c->nr_inputs++; c->regs[PROGRAM_INPUT][i] = brw_vec8_grf(reg, 0); reg++; @@ -91,7 +91,7 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c ) c->first_output = reg; mrf = 4; for (i = 0; i < VERT_RESULT_MAX; i++) { - if (c->prog_data.outputs_written & (1<<i)) { + if (c->prog_data.outputs_written & (1 << i)) { c->nr_outputs++; if (i == VERT_RESULT_HPOS) { c->regs[PROGRAM_OUTPUT][i] = brw_vec8_grf(reg, 0); @@ -133,16 +133,15 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c ) } for (i = 0; i < 128; i++) { - if (c->output_regs[i].used_in_src) { - c->output_regs[i].reg = brw_vec8_grf(reg, 0); - reg++; - } + if (c->output_regs[i].used_in_src) { + c->output_regs[i].reg = brw_vec8_grf(reg, 0); + reg++; + } } c->stack = brw_uw16_reg(BRW_GENERAL_REGISTER_FILE, reg, 0); reg += 2; - - + /* Some opcodes need an internal temporary: */ c->first_tmp = reg; @@ -152,9 +151,9 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c ) * urb_read_length is the number of registers read from *each* * vertex urb, so is half the amount: */ - c->prog_data.urb_read_length = (c->nr_inputs+1)/2; + c->prog_data.urb_read_length = (c->nr_inputs + 1) / 2; - c->prog_data.urb_entry_size = (c->nr_outputs+2+3)/4; + c->prog_data.urb_entry_size = (c->nr_outputs + 2 + 3) / 4; c->prog_data.total_grf = reg; if (INTEL_DEBUG & DEBUG_VS) { @@ -187,6 +186,10 @@ static void release_tmps( struct brw_vs_compile *c ) } +/** + * If an instruction uses a temp reg both as a src and the dest, we + * sometimes need to allocate an intermediate temporary. + */ static void unalias1( struct brw_vs_compile *c, struct brw_reg dst, struct brw_reg arg0, @@ -206,6 +209,10 @@ static void unalias1( struct brw_vs_compile *c, } } +/** + * \sa unalias2 + * Checkes if 2-operand instruction needs an intermediate temporary. + */ static void unalias2( struct brw_vs_compile *c, struct brw_reg dst, struct brw_reg arg0, @@ -228,6 +235,10 @@ static void unalias2( struct brw_vs_compile *c, } } +/** + * \sa unalias2 + * Checkes if 3-operand instruction needs an intermediate temporary. + */ static void unalias3( struct brw_vs_compile *c, struct brw_reg dst, struct brw_reg arg0, @@ -981,7 +992,7 @@ post_vs_emit( struct brw_vs_compile *c, } -/* Emit the fragment program instructions here. +/* Emit the vertex program instructions here. */ void brw_vs_emit(struct brw_vs_compile *c ) { @@ -1038,7 +1049,7 @@ void brw_vs_emit(struct brw_vs_compile *c ) struct prog_src_register *src = &inst->SrcReg[i]; index = src->Index; file = src->File; - if (file == PROGRAM_OUTPUT&&c->output_regs[index].used_in_src) + if (file == PROGRAM_OUTPUT && c->output_regs[index].used_in_src) args[i] = c->output_regs[index].reg; else args[i] = get_arg(c, src); |