To fully support geometry shaders, we need some means to declare a
two-dimensional register file. The following declaration
DCL IN[3][0]
would declare an input register with index 0 (first dimension) and size
3 (second dimension). Since the second dimension is a size, not an index
(or, for that matter, an index range), a new token has been added that
specifies the declared size of the register.
Thanks.
diff --git a/src/gallium/include/pipe/p_shader_tokens.h
b/src/gallium/include/pipe/p_shader_tokens.h
index 588ca5e..e5a723f 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -107,10 +107,11 @@ struct tgsi_declaration
unsigned File : 4; /**< one of TGSI_FILE_x */
unsigned UsageMask : 4; /**< bitmask of TGSI_WRITEMASK_x flags */
unsigned Interpolate : 4; /**< one of TGSI_INTERPOLATE_x */
+ unsigned Dimension : 1; /**< BOOL, any second dimension info? */
unsigned Semantic : 1; /**< BOOL, any semantic info? */
unsigned Centroid : 1; /**< centroid sampling? */
unsigned Invariant : 1; /**< invariant optimization? */
- unsigned Padding : 5;
+ unsigned Padding : 4;
};
struct tgsi_declaration_range
@@ -119,6 +120,12 @@ struct tgsi_declaration_range
unsigned Last : 16; /**< UINT */
};
+struct tgsi_declaration_dimension
+{
+ unsigned Size2D : 16; /**< Size of the second dimension */
+ unsigned Padding : 16;
+};
+
#define TGSI_SEMANTIC_POSITION 0
#define TGSI_SEMANTIC_COLOR 1
#define TGSI_SEMANTIC_BCOLOR 2 /**< back-face color */
------------------------------------------------------------------------------
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