Mesa (master): i965: bring back type_size_vec4_times_4()
Timothy Arceri
tarceri at kemper.freedesktop.org
Wed Jul 20 23:11:09 UTC 2016
Module: Mesa
Branch: master
Commit: 09e46f99ad465ab253de3fc321f39062cfbe1984
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=09e46f99ad465ab253de3fc321f39062cfbe1984
Author: Timothy Arceri <timothy.arceri at collabora.com>
Date: Tue Jul 19 15:13:51 2016 +1000
i965: bring back type_size_vec4_times_4()
We will use this for output varyings. To make component
packing simpler we will just treat all varyings as vec4s.
Reviewed-by: Alejandro Piñeiro <apinheiro at igalia.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
---
src/mesa/drivers/dri/i965/brw_fs.cpp | 13 +++++++++++++
src/mesa/drivers/dri/i965/brw_shader.h | 1 +
2 files changed, 14 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 4344a3a..53e7183 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -509,6 +509,19 @@ type_size_scalar(const struct glsl_type *type)
return 0;
}
+/**
+ * Returns the number of scalar components needed to store type, assuming
+ * that vectors are padded out to vec4.
+ *
+ * This has the packing rules of type_size_vec4(), but counts components
+ * similar to type_size_scalar().
+ */
+extern "C" int
+type_size_vec4_times_4(const struct glsl_type *type)
+{
+ return 4 * type_size_vec4(type);
+}
+
/* Attribute arrays are loaded as one vec4 per element (or matrix column),
* except for double-precision types, which are loaded as one dvec4.
*/
diff --git a/src/mesa/drivers/dri/i965/brw_shader.h b/src/mesa/drivers/dri/i965/brw_shader.h
index dd9eb2d..e61c080 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.h
+++ b/src/mesa/drivers/dri/i965/brw_shader.h
@@ -294,6 +294,7 @@ struct gl_linked_shader *brw_new_shader(gl_shader_stage stage);
int type_size_scalar(const struct glsl_type *type);
int type_size_vec4(const struct glsl_type *type);
int type_size_dvec4(const struct glsl_type *type);
+int type_size_vec4_times_4(const struct glsl_type *type);
int type_size_vs_input(const struct glsl_type *type);
unsigned tesslevel_outer_components(GLenum tes_primitive_mode);
More information about the mesa-commit
mailing list