diff options
| -rw-r--r-- | src/gallium/drivers/r600/r600_shader.c | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c index 46a9723bec2..85bbad3b951 100644 --- a/src/gallium/drivers/r600/r600_shader.c +++ b/src/gallium/drivers/r600/r600_shader.c @@ -197,6 +197,7 @@ struct r600_shader_ctx { int colors_used; boolean clip_vertex_write; unsigned cv_output; + int fragcoord_input; }; struct r600_shader_tgsi_instruction { @@ -454,13 +455,19 @@ static int tgsi_declaration(struct r600_shader_ctx *ctx) ctx->shader->input[i].centroid = d->Declaration.Centroid; ctx->shader->input[i].gpr = ctx->file_offset[TGSI_FILE_INPUT] + d->Range.First; if (ctx->type == TGSI_PROCESSOR_FRAGMENT) { - if (ctx->shader->input[i].name == TGSI_SEMANTIC_FACE) + switch (ctx->shader->input[i].name) { + case TGSI_SEMANTIC_FACE: ctx->face_gpr = ctx->shader->input[i].gpr; - else if (ctx->shader->input[i].name == TGSI_SEMANTIC_COLOR) + break; + case TGSI_SEMANTIC_COLOR: ctx->colors_used++; + break; + case TGSI_SEMANTIC_POSITION: + ctx->fragcoord_input = i; + break; + } if (ctx->bc->chip_class >= EVERGREEN) { - r = evergreen_interp_input(ctx, i); - if (r) + if ((r = evergreen_interp_input(ctx, i))) return r; } } @@ -823,6 +830,7 @@ static int r600_shader_from_tgsi(struct r600_pipe_context * rctx, struct r600_pi ctx.bc->type = shader->processor_type; ctx.face_gpr = -1; + ctx.fragcoord_input = -1; ctx.colors_used = 0; ctx.clip_vertex_write = 0; @@ -928,6 +936,21 @@ static int r600_shader_from_tgsi(struct r600_pipe_context * rctx, struct r600_pi } } + if (ctx.fragcoord_input >= 0) { + struct r600_bytecode_alu alu; + memset(&alu, 0, sizeof(struct r600_bytecode_alu)); + alu.inst = BC_INST(ctx.bc, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_RECIP_IEEE); + alu.src[0].sel = shader->input[ctx.fragcoord_input].gpr; + alu.src[0].chan = 3; + + alu.dst.sel = shader->input[ctx.fragcoord_input].gpr; + alu.dst.chan = 3; + alu.dst.write = 1; + alu.last = 1; + if ((r = r600_bytecode_add_alu(ctx.bc, &alu))) + return r; + } + if (shader->two_side && ctx.colors_used) { if ((r = process_twoside_color_inputs(&ctx))) return r; |