From 34a78b7ef6b0edf217acf221eab4b63542be5552 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 5 Jan 2012 16:59:24 +0000 Subject: [PATCH] tgsi/softpipe: add VertexID support. This required changing the system value semantics, so we stored a system value per vertex, instance id is the only other system value we currently support, so I span it across the channels. This passes the 3 vertexid-* piglit tests + lots of instanceid tests. Signed-off-by: Dave Airlie --- src/gallium/auxiliary/draw/draw_vs_exec.c | 9 ++++++++- src/gallium/auxiliary/tgsi/tgsi_exec.c | 14 ++++++++++---- src/gallium/auxiliary/tgsi/tgsi_exec.h | 2 +- 3 files changed, 19 insertions(+), 6 deletions(-) diff --git a/src/gallium/auxiliary/draw/draw_vs_exec.c b/src/gallium/auxiliary/draw/draw_vs_exec.c index 3f89881..bfe7aea 100644 --- a/src/gallium/auxiliary/draw/draw_vs_exec.c +++ b/src/gallium/auxiliary/draw/draw_vs_exec.c @@ -103,7 +103,8 @@ vs_exec_run_linear( struct draw_vertex_shader *shader, if (shader->info.uses_instanceid) { unsigned i = machine->SysSemanticToIndex[TGSI_SEMANTIC_INSTANCEID]; assert(i < Elements(machine->SystemValue)); - machine->SystemValue[i][0] = shader->draw->instance_id; + for (j = 0; j < QUAD_SIZE; j++) + machine->SystemValue[i].i[j] = shader->draw->instance_id; } for (i = 0; i < count; i += MAX_TGSI_VERTICES) { @@ -123,6 +124,12 @@ vs_exec_run_linear( struct draw_vertex_shader *shader, } #endif + if (shader->info.uses_vertexid) { + unsigned vid = machine->SysSemanticToIndex[TGSI_SEMANTIC_VERTEXID]; + assert(vid < Elements(machine->SystemValue)); + machine->SystemValue[vid].i[j] = i + j; + } + for (slot = 0; slot < shader->info.num_inputs; slot++) { #if 0 assert(!util_is_inf_or_nan(input[slot][0])); diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c index 52d4ff4..3046656 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c @@ -1037,6 +1037,7 @@ micro_sub(union tgsi_exec_channel *dst, static void fetch_src_file_channel(const struct tgsi_exec_machine *mach, + const uint chan_index, const uint file, const uint swizzle, const union tgsi_exec_channel *index, @@ -1097,7 +1098,7 @@ fetch_src_file_channel(const struct tgsi_exec_machine *mach, * gl_FragCoord, for example, in a sys value register. */ for (i = 0; i < QUAD_SIZE; i++) { - chan->f[i] = mach->SystemValue[index->i[i]][0]; + chan->u[i] = mach->SystemValue[index->i[i]].u[i]; } break; @@ -1221,6 +1222,7 @@ fetch_source(const struct tgsi_exec_machine *mach, /* get current value of address register[swizzle] */ swizzle = tgsi_util_get_src_register_swizzle( ®->Indirect, CHAN_X ); fetch_src_file_channel(mach, + chan_index, reg->Indirect.File, swizzle, &index2, @@ -1280,6 +1282,7 @@ fetch_source(const struct tgsi_exec_machine *mach, swizzle = tgsi_util_get_src_register_swizzle( ®->DimIndirect, CHAN_X ); fetch_src_file_channel(mach, + chan_index, reg->DimIndirect.File, swizzle, &index2, @@ -1314,6 +1317,7 @@ fetch_source(const struct tgsi_exec_machine *mach, swizzle = tgsi_util_get_full_src_register_swizzle( reg, chan_index ); fetch_src_file_channel(mach, + chan_index, reg->Register.File, swizzle, &index, @@ -1384,6 +1388,7 @@ store_dest(struct tgsi_exec_machine *mach, /* fetch values from the address/indirection register */ fetch_src_file_channel(mach, + chan_index, reg->Indirect.File, swizzle, &index, @@ -1433,6 +1438,7 @@ store_dest(struct tgsi_exec_machine *mach, swizzle = tgsi_util_get_src_register_swizzle( ®->DimIndirect, CHAN_X ); fetch_src_file_channel(mach, + chan_index, reg->DimIndirect.File, swizzle, &index2, @@ -1995,11 +2001,11 @@ exec_txf(struct tgsi_exec_machine *mach, if (inst->Texture.NumOffsets == 1) { union tgsi_exec_channel index; index.i[0] = index.i[1] = index.i[2] = index.i[3] = inst->TexOffsets[0].Index; - fetch_src_file_channel(mach, inst->TexOffsets[0].File, + fetch_src_file_channel(mach, 0, inst->TexOffsets[0].File, inst->TexOffsets[0].SwizzleX, &index, &ZeroVec, &offset[0]); - fetch_src_file_channel(mach, inst->TexOffsets[0].File, + fetch_src_file_channel(mach, 0, inst->TexOffsets[0].File, inst->TexOffsets[0].SwizzleY, &index, &ZeroVec, &offset[1]); - fetch_src_file_channel(mach, inst->TexOffsets[0].File, + fetch_src_file_channel(mach, 0, inst->TexOffsets[0].File, inst->TexOffsets[0].SwizzleZ, &index, &ZeroVec, &offset[2]); offsets[0] = offset[0].i[0]; offsets[1] = offset[1].i[0]; diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.h b/src/gallium/auxiliary/tgsi/tgsi_exec.h index 0817e14..2fd1f97 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.h +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h @@ -239,7 +239,7 @@ struct tgsi_exec_machine /* System values */ unsigned SysSemanticToIndex[TGSI_SEMANTIC_COUNT]; - float SystemValue[TGSI_MAX_MISC_INPUTS][4]; + union tgsi_exec_channel SystemValue[TGSI_MAX_MISC_INPUTS]; struct tgsi_exec_vector *Addrs; struct tgsi_exec_vector *Predicates; -- 2.7.4