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authorMarc-André Lureau <marcandre.lureau@redhat.com>2016-02-22 19:55:03 +0100
committerDave Airlie <airlied@redhat.com>2016-02-29 06:56:37 +0000
commit55a34e71e892ceafa00479df53c8951c80d589b0 (patch)
tree9c9582d6508d595a4ef24edfadc6eb79da000d7e
parent5f9133d0dbce6d850fe7024eaf80e622ac4d2eba (diff)
shader: fixes piglit layer-gs-no-write
Fix using undeclared gl_Layer from fragment shader. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
-rw-r--r--src/vrend_shader.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/src/vrend_shader.c b/src/vrend_shader.c
index 18e66c4..5afb435 100644
--- a/src/vrend_shader.c
+++ b/src/vrend_shader.c
@@ -116,6 +116,7 @@ struct dump_ctx {
bool uses_lodq;
bool uses_txq_levels;
bool uses_tg4;
+ bool uses_layer;
bool write_all_cbufs;
bool uses_stencil_export;
uint32_t shadow_samp_mask;
@@ -315,6 +316,16 @@ iter_declaration(struct tgsi_iterate_context *iter,
ctx->glsl_ver_required = 150;
break;
}
+ case TGSI_SEMANTIC_LAYER:
+ if (iter->processor.Processor == TGSI_PROCESSOR_FRAGMENT) {
+ name_prefix = "gl_Layer";
+ ctx->inputs[i].glsl_predefined_no_emit = true;
+ ctx->inputs[i].glsl_no_index = true;
+ ctx->inputs[i].is_int = true;
+ ctx->inputs[i].override_no_wm = true;
+ ctx->uses_layer = true;
+ break;
+ }
case TGSI_SEMANTIC_PSIZE:
if (iter->processor.Processor == TGSI_PROCESSOR_GEOMETRY) {
name_prefix = "gl_PointSize";
@@ -1436,7 +1447,7 @@ iter_instruction(struct tgsi_iterate_context *iter,
idx += src->Register.SwizzleX;
snprintf(srcs[i], 255, "%s(vec4(%s%s%s[%d]))", stypeprefix, prefix, arrayname, ctx->inputs[j].glsl_name, idx);
} else
- snprintf(srcs[i], 255, "%s(%s%s%s%s)", stypeprefix, prefix, ctx->inputs[j].glsl_name, arrayname, swizzle);
+ snprintf(srcs[i], 255, "%s(%s%s%s%s)", stypeprefix, prefix, ctx->inputs[j].glsl_name, arrayname, ctx->inputs[j].is_int ? "" : swizzle);
override_no_wm[i] = ctx->inputs[j].override_no_wm;
break;
}
@@ -2021,6 +2032,8 @@ static char *emit_header(struct dump_ctx *ctx, char *glsl_hdr)
STRCAT_WITH_RET(glsl_hdr, "#extension GL_ARB_viewport_array : require\n");
if (ctx->uses_stencil_export)
STRCAT_WITH_RET(glsl_hdr, "#extension GL_ARB_shader_stencil_export : require\n");
+ if (ctx->uses_layer)
+ STRCAT_WITH_RET(glsl_hdr, "#extension GL_ARB_fragment_layer_viewport : require\n");
return glsl_hdr;
}