diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/r300/r300_state_derived.c | 4 | ||||
| -rw-r--r-- | src/gallium/drivers/r300/r300_vs.c | 40 |
2 files changed, 37 insertions, 7 deletions
diff --git a/src/gallium/drivers/r300/r300_state_derived.c b/src/gallium/drivers/r300/r300_state_derived.c index 2a12a02e18a..22660a52d9a 100644 --- a/src/gallium/drivers/r300/r300_state_derived.c +++ b/src/gallium/drivers/r300/r300_state_derived.c @@ -333,6 +333,8 @@ static void r300_update_rs_block(struct r300_context* r300, void (*rX00_rs_col_write)(struct r300_rs_block*, int, int); void (*rX00_rs_tex)(struct r300_rs_block*, int, int, boolean); void (*rX00_rs_tex_write)(struct r300_rs_block*, int, int); + boolean any_bcolor_used = vs_outputs->bcolor[0] != ATTR_UNUSED || + vs_outputs->bcolor[1] != ATTR_UNUSED; if (r300_screen(r300->context.screen)->caps->is_r500) { rX00_rs_col = r500_rs_col; @@ -348,7 +350,7 @@ static void r300_update_rs_block(struct r300_context* r300, /* Rasterize colors. */ for (i = 0; i < ATTR_COLOR_COUNT; i++) { - if (vs_outputs->color[i] != ATTR_UNUSED) { + if (vs_outputs->color[i] != ATTR_UNUSED || any_bcolor_used) { /* Always rasterize if it's written by the VS, * otherwise it locks up. */ rX00_rs_col(rs, col_count, i, FALSE); diff --git a/src/gallium/drivers/r300/r300_vs.c b/src/gallium/drivers/r300/r300_vs.c index cb4b6ee71e7..68aef70872e 100644 --- a/src/gallium/drivers/r300/r300_vs.c +++ b/src/gallium/drivers/r300/r300_vs.c @@ -96,6 +96,8 @@ static void r300_shader_vap_output_fmt(struct r300_vertex_shader* vs) struct r300_shader_semantics* vs_outputs = &vs->outputs; uint32_t* hwfmt = vs->hwfmt; int i, gen_count; + boolean any_bcolor_used = vs_outputs->bcolor[0] != ATTR_UNUSED || + vs_outputs->bcolor[1] != ATTR_UNUSED; /* Do the actual vertex_info setup. * @@ -122,13 +124,19 @@ static void r300_shader_vap_output_fmt(struct r300_vertex_shader* vs) /* Colors. */ for (i = 0; i < ATTR_COLOR_COUNT; i++) { - if (vs_outputs->color[i] != ATTR_UNUSED) { + if (vs_outputs->color[i] != ATTR_UNUSED || any_bcolor_used) { hwfmt[1] |= R300_INPUT_CNTL_COLOR; hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT << i; } } - /* XXX Back-face colors. */ + /* Back-face colors. */ + if (any_bcolor_used) { + for (i = 0; i < ATTR_COLOR_COUNT; i++) { + hwfmt[1] |= R300_INPUT_CNTL_COLOR; + hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT << (2+i); + } + } /* Texture coordinates. */ gen_count = 0; @@ -161,6 +169,8 @@ static void r300_stream_locations_notcl( int* stream_loc) { int i, tabi = 0, gen_count; + boolean any_bcolor_used = vs_outputs->bcolor[0] != ATTR_UNUSED || + vs_outputs->bcolor[1] != ATTR_UNUSED; /* Position. */ stream_loc[tabi++] = 0; @@ -172,14 +182,14 @@ static void r300_stream_locations_notcl( /* Colors. */ for (i = 0; i < ATTR_COLOR_COUNT; i++) { - if (vs_outputs->color[i] != ATTR_UNUSED) { + if (vs_outputs->color[i] != ATTR_UNUSED || any_bcolor_used) { stream_loc[tabi++] = 2 + i; } } /* Back-face colors. */ - for (i = 0; i < ATTR_COLOR_COUNT; i++) { - if (vs_outputs->bcolor[i] != ATTR_UNUSED) { + if (any_bcolor_used) { + for (i = 0; i < ATTR_COLOR_COUNT; i++) { stream_loc[tabi++] = 4 + i; } } @@ -219,6 +229,8 @@ static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c) struct r300_shader_semantics* outputs = &vs->outputs; struct tgsi_shader_info* info = &vs->info; int i, reg = 0; + boolean any_bcolor_used = outputs->bcolor[0] != ATTR_UNUSED || + outputs->bcolor[1] != ATTR_UNUSED; /* Fill in the input mapping */ for (i = 0; i < info->num_inputs; i++) @@ -236,14 +248,30 @@ static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c) c->code->outputs[outputs->psize] = reg++; } + /* If we're writing back facing colors we need to send + * four colors to make front/back face colors selection work. + * If the vertex program doesn't write all 4 colors, lets + * pretend it does by skipping output index reg so the colors + * get written into appropriate output vectors. + */ + /* Colors. */ for (i = 0; i < ATTR_COLOR_COUNT; i++) { if (outputs->color[i] != ATTR_UNUSED) { c->code->outputs[outputs->color[i]] = reg++; + } else if (any_bcolor_used) { + reg++; } } - /* XXX Back-face colors. */ + /* Back-face colors. */ + for (i = 0; i < ATTR_COLOR_COUNT; i++) { + if (outputs->bcolor[i] != ATTR_UNUSED) { + c->code->outputs[outputs->bcolor[i]] = reg++; + } else if (any_bcolor_used) { + reg++; + } + } /* Texture coordinates. */ for (i = 0; i < ATTR_GENERIC_COUNT; i++) { |