From 313acb3ffa2e73635807c4028b7aedced5bad379 Mon Sep 17 00:00:00 2001 From: Ilia Mirkin Date: Wed, 2 Jul 2014 12:16:01 -0400 Subject: [PATCH] r600g: allow vs to write to gl_ViewportIndex MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Ilia Mirkin Reviewed-by: Alex Deucher Reviewed-by: Marek Olšák Tested-by: Tobias Droste --- src/gallium/drivers/r600/r600_shader.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c index 3767e5fbc18..448ca8044de 100644 --- a/src/gallium/drivers/r600/r600_shader.c +++ b/src/gallium/drivers/r600/r600_shader.c @@ -2042,6 +2042,23 @@ static int r600_shader_from_tgsi(struct r600_context *rctx, output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_POS; pos_emitted = true; break; + case TGSI_SEMANTIC_VIEWPORT_INDEX: + /* spi_sid is 0 for outputs that are + * not consumed by PS */ + if (shader->output[i].spi_sid) { + output[j].array_base = next_param_base++; + output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_PARAM; + j++; + memcpy(&output[j], &output[j-1], sizeof(struct r600_bytecode_output)); + } + output[j].array_base = 61; + output[j].swizzle_x = 7; + output[j].swizzle_y = 7; + output[j].swizzle_z = 7; + output[j].swizzle_w = 0; + output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_POS; + pos_emitted = true; + break; case TGSI_SEMANTIC_CLIPVERTEX: j--; break; -- 2.30.2