Mesa (master): gallivm: Move gather functions to its own module.
Jose Fonseca
jrfonseca at kemper.freedesktop.org
Fri Jul 2 17:46:10 UTC 2010
Module: Mesa
Branch: master
Commit: bb1546f55be3b243b71d39e5fb7457c5b21e32c9
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=bb1546f55be3b243b71d39e5fb7457c5b21e32c9
Author: José Fonseca <jfonseca at vmware.com>
Date: Fri Jul 2 16:57:57 2010 +0100
gallivm: Move gather functions to its own module.
They need to grow, and they provide basic functionality which is not
specific to sampling.
---
src/gallium/auxiliary/Makefile | 1 +
src/gallium/auxiliary/SConscript | 1 +
src/gallium/auxiliary/gallivm/lp_bld_format_aos.c | 1 +
src/gallium/auxiliary/gallivm/lp_bld_format_soa.c | 2 +-
src/gallium/auxiliary/gallivm/lp_bld_format_yuv.c | 1 +
src/gallium/auxiliary/gallivm/lp_bld_gather.c | 148 +++++++++++++++++++++
src/gallium/auxiliary/gallivm/lp_bld_gather.h | 61 +++++++++
src/gallium/auxiliary/gallivm/lp_bld_sample.c | 51 -------
src/gallium/auxiliary/gallivm/lp_bld_sample.h | 9 --
src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c | 1 +
10 files changed, 215 insertions(+), 61 deletions(-)
diff --git a/src/gallium/auxiliary/Makefile b/src/gallium/auxiliary/Makefile
index 36a46ae..91f8b10 100644
--- a/src/gallium/auxiliary/Makefile
+++ b/src/gallium/auxiliary/Makefile
@@ -155,6 +155,7 @@ GALLIVM_SOURCES = \
gallivm/lp_bld_format_aos.c \
gallivm/lp_bld_format_soa.c \
gallivm/lp_bld_format_yuv.c \
+ gallivm/lp_bld_gather.c \
gallivm/lp_bld_init.c \
gallivm/lp_bld_intr.c \
gallivm/lp_bld_logic.c \
diff --git a/src/gallium/auxiliary/SConscript b/src/gallium/auxiliary/SConscript
index 0b19444..af3f47b 100644
--- a/src/gallium/auxiliary/SConscript
+++ b/src/gallium/auxiliary/SConscript
@@ -204,6 +204,7 @@ if env['llvm']:
'gallivm/lp_bld_format_aos.c',
'gallivm/lp_bld_format_soa.c',
'gallivm/lp_bld_format_yuv.c',
+ 'gallivm/lp_bld_gather.c',
'gallivm/lp_bld_intr.c',
'gallivm/lp_bld_logic.c',
'gallivm/lp_bld_init.c',
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c b/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c
index cc72a31..c3d1fc7 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c
@@ -45,6 +45,7 @@
#include "lp_bld_const.h"
#include "lp_bld_conv.h"
#include "lp_bld_swizzle.h"
+#include "lp_bld_gather.h"
#include "lp_bld_format.h"
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_format_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_format_soa.c
index a4a36a0..687bce4 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_format_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_format_soa.c
@@ -36,7 +36,7 @@
#include "lp_bld_const.h"
#include "lp_bld_conv.h"
#include "lp_bld_swizzle.h"
-#include "lp_bld_sample.h" /* for lp_build_gather */
+#include "lp_bld_gather.h"
#include "lp_bld_format.h"
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_format_yuv.c b/src/gallium/auxiliary/gallivm/lp_bld_format_yuv.c
index 5fe2ab6..d3eba50 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_format_yuv.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_format_yuv.c
@@ -44,6 +44,7 @@
#include "lp_bld_type.h"
#include "lp_bld_const.h"
#include "lp_bld_conv.h"
+#include "lp_bld_gather.h"
#include "lp_bld_format.h"
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_gather.c b/src/gallium/auxiliary/gallivm/lp_bld_gather.c
new file mode 100644
index 0000000..d60472e
--- /dev/null
+++ b/src/gallium/auxiliary/gallivm/lp_bld_gather.c
@@ -0,0 +1,148 @@
+/**************************************************************************
+ *
+ * Copyright 2010 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ **************************************************************************/
+
+
+#include "util/u_debug.h"
+#include "lp_bld_debug.h"
+#include "lp_bld_const.h"
+#include "lp_bld_format.h"
+#include "lp_bld_gather.h"
+
+
+/**
+ * Get the pointer to one element from scatter positions in memory.
+ *
+ * @sa lp_build_gather()
+ */
+LLVMValueRef
+lp_build_gather_elem_ptr(LLVMBuilderRef builder,
+ unsigned length,
+ LLVMValueRef base_ptr,
+ LLVMValueRef offsets,
+ unsigned i)
+{
+ LLVMValueRef offset;
+ LLVMValueRef ptr;
+
+ assert(LLVMTypeOf(base_ptr) == LLVMPointerType(LLVMInt8Type(), 0));
+
+ if (length == 1) {
+ assert(i == 0);
+ offset = offsets;
+ } else {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
+ offset = LLVMBuildExtractElement(builder, offsets, index, "");
+ }
+
+ ptr = LLVMBuildGEP(builder, base_ptr, &offset, 1, "");
+
+ return ptr;
+}
+
+
+/**
+ * Gather one element from scatter positions in memory.
+ *
+ * @sa lp_build_gather()
+ */
+LLVMValueRef
+lp_build_gather_elem(LLVMBuilderRef builder,
+ unsigned length,
+ unsigned src_width,
+ unsigned dst_width,
+ LLVMValueRef base_ptr,
+ LLVMValueRef offsets,
+ unsigned i)
+{
+ LLVMTypeRef src_type = LLVMIntType(src_width);
+ LLVMTypeRef src_ptr_type = LLVMPointerType(src_type, 0);
+ LLVMTypeRef dst_elem_type = LLVMIntType(dst_width);
+ LLVMValueRef ptr;
+ LLVMValueRef res;
+
+ assert(LLVMTypeOf(base_ptr) == LLVMPointerType(LLVMInt8Type(), 0));
+
+ ptr = lp_build_gather_elem_ptr(builder, length, base_ptr, offsets, i);
+ ptr = LLVMBuildBitCast(builder, ptr, src_ptr_type, "");
+ res = LLVMBuildLoad(builder, ptr, "");
+
+ assert(src_width <= dst_width);
+ if (src_width > dst_width)
+ res = LLVMBuildTrunc(builder, res, dst_elem_type, "");
+ if (src_width < dst_width)
+ res = LLVMBuildZExt(builder, res, dst_elem_type, "");
+
+ return res;
+}
+
+
+/**
+ * Gather elements from scatter positions in memory into a single vector.
+ * Use for fetching texels from a texture.
+ * For SSE, typical values are length=4, src_width=32, dst_width=32.
+ *
+ * @param length length of the offsets
+ * @param src_width src element width in bits
+ * @param dst_width result element width in bits (src will be expanded to fit)
+ * @param base_ptr base pointer, should be a i8 pointer type.
+ * @param offsets vector with offsets
+ */
+LLVMValueRef
+lp_build_gather(LLVMBuilderRef builder,
+ unsigned length,
+ unsigned src_width,
+ unsigned dst_width,
+ LLVMValueRef base_ptr,
+ LLVMValueRef offsets)
+{
+ LLVMValueRef res;
+
+ if (length == 1) {
+ /* Scalar */
+ return lp_build_gather_elem(builder, length,
+ src_width, dst_width,
+ base_ptr, offsets, 0);
+ } else {
+ /* Vector */
+
+ LLVMTypeRef dst_elem_type = LLVMIntType(dst_width);
+ LLVMTypeRef dst_vec_type = LLVMVectorType(dst_elem_type, length);
+ unsigned i;
+
+ res = LLVMGetUndef(dst_vec_type);
+ for (i = 0; i < length; ++i) {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
+ LLVMValueRef elem;
+ elem = lp_build_gather_elem(builder, length,
+ src_width, dst_width,
+ base_ptr, offsets, i);
+ res = LLVMBuildInsertElement(builder, res, elem, index, "");
+ }
+ }
+
+ return res;
+}
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_gather.h b/src/gallium/auxiliary/gallivm/lp_bld_gather.h
new file mode 100644
index 0000000..131af8e
--- /dev/null
+++ b/src/gallium/auxiliary/gallivm/lp_bld_gather.h
@@ -0,0 +1,61 @@
+/**************************************************************************
+ *
+ * Copyright 2010 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ **************************************************************************/
+
+
+#ifndef LP_BLD_GATHER_H_
+#define LP_BLD_GATHER_H_
+
+
+#include "gallivm/lp_bld.h"
+
+
+LLVMValueRef
+lp_build_gather_elem_ptr(LLVMBuilderRef builder,
+ unsigned length,
+ LLVMValueRef base_ptr,
+ LLVMValueRef offsets,
+ unsigned i);
+
+LLVMValueRef
+lp_build_gather_elem(LLVMBuilderRef builder,
+ unsigned length,
+ unsigned src_width,
+ unsigned dst_width,
+ LLVMValueRef base_ptr,
+ LLVMValueRef offsets,
+ unsigned i);
+
+LLVMValueRef
+lp_build_gather(LLVMBuilderRef builder,
+ unsigned length,
+ unsigned src_width,
+ unsigned dst_width,
+ LLVMValueRef base_ptr,
+ LLVMValueRef offsets);
+
+
+#endif /* LP_BLD_GATHER_H_ */
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.c b/src/gallium/auxiliary/gallivm/lp_bld_sample.c
index 946c23e..6e556f9 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.c
@@ -125,57 +125,6 @@ lp_sampler_static_state(struct lp_sampler_static_state *state,
/**
- * Gather elements from scatter positions in memory into a single vector.
- * Use for fetching texels from a texture.
- * For SSE, typical values are length=4, src_width=32, dst_width=32.
- *
- * @param length length of the offsets
- * @param src_width src element width in bits
- * @param dst_width result element width in bits (src will be expanded to fit)
- * @param base_ptr base pointer, should be a i8 pointer type.
- * @param offsets vector with offsets
- */
-LLVMValueRef
-lp_build_gather(LLVMBuilderRef builder,
- unsigned length,
- unsigned src_width,
- unsigned dst_width,
- LLVMValueRef base_ptr,
- LLVMValueRef offsets)
-{
- LLVMTypeRef src_type = LLVMIntType(src_width);
- LLVMTypeRef src_ptr_type = LLVMPointerType(src_type, 0);
- LLVMTypeRef dst_elem_type = LLVMIntType(dst_width);
- LLVMTypeRef dst_vec_type = LLVMVectorType(dst_elem_type, length);
- LLVMValueRef res;
- unsigned i;
-
- res = LLVMGetUndef(dst_vec_type);
- for(i = 0; i < length; ++i) {
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
- LLVMValueRef elem_offset;
- LLVMValueRef elem_ptr;
- LLVMValueRef elem;
-
- elem_offset = LLVMBuildExtractElement(builder, offsets, index, "");
- elem_ptr = LLVMBuildGEP(builder, base_ptr, &elem_offset, 1, "");
- elem_ptr = LLVMBuildBitCast(builder, elem_ptr, src_ptr_type, "");
- elem = LLVMBuildLoad(builder, elem_ptr, "");
-
- assert(src_width <= dst_width);
- if(src_width > dst_width)
- elem = LLVMBuildTrunc(builder, elem, dst_elem_type, "");
- if(src_width < dst_width)
- elem = LLVMBuildZExt(builder, elem, dst_elem_type, "");
-
- res = LLVMBuildInsertElement(builder, res, elem, index, "");
- }
-
- return res;
-}
-
-
-/**
* Compute the offset of a pixel block.
*
* x, y, z, y_stride, z_stride are vectors, and they refer to pixel blocks, as
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.h b/src/gallium/auxiliary/gallivm/lp_bld_sample.h
index 51e98ab..64eb15a 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.h
@@ -147,15 +147,6 @@ lp_sampler_static_state(struct lp_sampler_static_state *state,
LLVMValueRef
-lp_build_gather(LLVMBuilderRef builder,
- unsigned length,
- unsigned src_width,
- unsigned dst_width,
- LLVMValueRef base_ptr,
- LLVMValueRef offsets);
-
-
-LLVMValueRef
lp_build_sample_offset(struct lp_build_context *bld,
const struct util_format_description *format_desc,
LLVMValueRef x,
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
index 84c04fe..a33231d 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
@@ -50,6 +50,7 @@
#include "lp_bld_swizzle.h"
#include "lp_bld_pack.h"
#include "lp_bld_flow.h"
+#include "lp_bld_gather.h"
#include "lp_bld_format.h"
#include "lp_bld_sample.h"
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