Merge branch 'master' into gallium-new-formats

Conflicts:
	src/gallium/auxiliary/util/u_format.csv

7 files changed, 200 insertions, 19 deletions

diff --git a/src/gallium/auxiliary/Makefile b/src/gallium/auxiliary/Makefile
index e1c3bc4..452eceb 100644
--- a/src/gallium/auxiliary/Makefile
+++ b/src/gallium/auxiliary/Makefile
@@ -155,6 +155,7 @@ GALLIVM_SOURCES = \
         gallivm/lp_bld_intr.c \
         gallivm/lp_bld_logic.c \
         gallivm/lp_bld_pack.c \
+        gallivm/lp_bld_printf.c \
         gallivm/lp_bld_sample.c \
         gallivm/lp_bld_sample_soa.c \
         gallivm/lp_bld_struct.c \
diff --git a/src/gallium/auxiliary/SConscript b/src/gallium/auxiliary/SConscript
index 65e1dc8..0a23da4 100644
--- a/src/gallium/auxiliary/SConscript
+++ b/src/gallium/auxiliary/SConscript
@@ -200,6 +200,7 @@ if drawllvm:
     'gallivm/lp_bld_logic.c',
     'gallivm/lp_bld_init.cpp',
     'gallivm/lp_bld_pack.c',
+    'gallivm/lp_bld_printf.c',
     'gallivm/lp_bld_sample.c',
     'gallivm/lp_bld_sample_soa.c',
     'gallivm/lp_bld_struct.c',
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_printf.c b/src/gallium/auxiliary/gallivm/lp_bld_printf.c
new file mode 100644
index 0000000..ae4d400
--- /dev/null
+++ b/src/gallium/auxiliary/gallivm/lp_bld_printf.c
@@ -0,0 +1,109 @@
+/**************************************************************************
+ *
+ * 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 above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+
+#include <stdio.h>
+
+#include "lp_bld_printf.h"
+
+
+static int
+lp_get_printf_arg_count(const char *fmt)
+{
+   int count =0;
+   const char *p = fmt;
+   int c;
+
+   while ((c = *p++)) {
+      if (c != '%')
+         continue;
+      switch (*p) {
+         case '\0':
+	    continue;
+         case '%':
+	    p++;
+	    continue;
+	 case '.':
+	    if (p[1] == '*' && p[2] == 's') {
+	       count += 2;
+	       p += 3;
+               continue;
+	    }
+	 default:
+	    count ++;
+      }
+   }
+   return count;
+}
+
+LLVMValueRef 
+lp_build_const_string_variable(LLVMModuleRef module, const char *str, int len)
+{
+   LLVMValueRef string = LLVMAddGlobal(module, LLVMArrayType(LLVMInt8Type(), len + 1), "");
+   LLVMSetGlobalConstant(string, TRUE);
+   LLVMSetLinkage(string, LLVMInternalLinkage);
+   LLVMSetInitializer(string, LLVMConstString(str, len + 1, TRUE));
+   return string;
+}
+ 
+
+/**
+ * lp_build_printf.
+ *
+ * Build printf call in LLVM IR. The output goes to stdout.
+ * The additional variable arguments need to have type
+ * LLVMValueRef.
+ */
+LLVMValueRef
+lp_build_printf(LLVMBuilderRef builder, const char *fmt, ...)
+{
+   va_list arglist;
+   int i = 0;
+   int argcount = lp_get_printf_arg_count(fmt);
+   LLVMModuleRef module = LLVMGetGlobalParent(LLVMGetBasicBlockParent(LLVMGetInsertBlock(builder)));
+   LLVMValueRef params[argcount + 1];
+   LLVMValueRef fmtarg = lp_build_const_string_variable(module, fmt, strlen(fmt) + 1);
+   LLVMValueRef int0 = LLVMConstInt(LLVMInt32Type(), 0, 0);
+   LLVMValueRef index[2];
+   LLVMValueRef func_printf = LLVMGetNamedFunction(module, "printf");
+
+   index[0] = index[1] = int0;
+
+   if (!func_printf) {
+      LLVMTypeRef printf_type = LLVMFunctionType(LLVMIntType(32), NULL, 0, 1);
+      func_printf = LLVMAddFunction(module, "printf", printf_type);
+   }
+
+   params[0] = LLVMBuildGEP(builder, fmtarg, index, 2, "");
+
+   va_start(arglist, fmt);
+   for (i = 1; i <= argcount; i++)
+      params[i] = va_arg(arglist, LLVMValueRef);
+   va_end(arglist);
+
+   return LLVMBuildCall(builder, func_printf, params, argcount + 1, "");
+}
+
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_printf.h b/src/gallium/auxiliary/gallivm/lp_bld_printf.h
new file mode 100644
index 0000000..83bd8f1
--- /dev/null
+++ b/src/gallium/auxiliary/gallivm/lp_bld_printf.h
@@ -0,0 +1,39 @@
+/**************************************************************************
+ *
+ * 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 above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+
+#ifndef LP_BLD_PRINTF_H
+#define LP_BLD_PRINTF_H
+
+
+#include "pipe/p_compiler.h"
+#include "lp_bld.h"
+
+LLVMValueRef lp_build_const_string_variable(LLVMModuleRef module, const char *str, int len);
+LLVMValueRef lp_build_printf(LLVMBuilderRef builder, const char *fmt, ...);
+
+#endif
+
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
index f160be8..95cd6a0 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
@@ -651,6 +651,19 @@ emit_declaration(
    unsigned first = decl->Range.First;
    unsigned last = decl->Range.Last;
    unsigned idx, i;
+   LLVMBasicBlockRef current_block =
+      LLVMGetInsertBlock(bld->base.builder);
+   LLVMBasicBlockRef first_block =
+      LLVMGetEntryBasicBlock(
+         LLVMGetBasicBlockParent(current_block));
+   LLVMValueRef first_inst =
+      LLVMGetFirstInstruction(first_block);
+
+   /* we want alloca's to be the first instruction
+    * in the function so we need to rewind the builder
+    * to the very beginning */
+   LLVMPositionBuilderBefore(bld->base.builder,
+                             first_inst);
 
    for (idx = first; idx <= last; ++idx) {
       boolean ok;
@@ -673,10 +686,15 @@ emit_declaration(
          ok = TRUE;
       }
 
-      if (!ok)
+      if (!ok) {
+         LLVMPositionBuilderAtEnd(bld->base.builder,
+                                  current_block);
          return FALSE;
+      }
    }
 
+   LLVMPositionBuilderAtEnd(bld->base.builder,
+                            current_block);
    return TRUE;
 }
 
diff --git a/src/gallium/auxiliary/util/u_format.csv b/src/gallium/auxiliary/util/u_format.csv
index f55bc3d..57e995c 100644
--- a/src/gallium/auxiliary/util/u_format.csv
+++ b/src/gallium/auxiliary/util/u_format.csv
@@ -121,18 +121,23 @@ PIPE_FORMAT_R9G9B9E5_FLOAT        , compressed, 1,  1, x32 ,     ,     ,     , x
 PIPE_FORMAT_R1_UNORM              , compressed, 8,  1, x8  ,     ,     ,     , x001, rgb
 
 # Compressed formats
-PIPE_FORMAT_DXT1_RGB              , compressed, 4, 4, x64 ,     ,     ,     , xyz1, rgb
-PIPE_FORMAT_DXT1_RGBA             , compressed, 4, 4, x64 ,     ,     ,     , xyzw, rgb
-PIPE_FORMAT_DXT3_RGBA             , compressed, 4, 4, x128,     ,     ,     , xyzw, rgb
-PIPE_FORMAT_DXT5_RGBA             , compressed, 4, 4, x128,     ,     ,     , xyzw, rgb
-PIPE_FORMAT_DXT1_SRGB             , compressed, 4, 4, x64 ,     ,     ,     , xyz1, srgb
-PIPE_FORMAT_DXT1_SRGBA            , compressed, 4, 4, x64 ,     ,     ,     , xyzw, srgb
-PIPE_FORMAT_DXT3_SRGBA            , compressed, 4, 4, x128,     ,     ,     , xyzw, srgb
-PIPE_FORMAT_DXT5_SRGBA            , compressed, 4, 4, x128,     ,     ,     , xyzw, srgb
-PIPE_FORMAT_RGTC1_UNORM           , compressed, 4, 4, x64,      ,     ,     , x001, rgb
-PIPE_FORMAT_RGTC1_SNORM           , compressed, 4, 4, x64,      ,     ,     , x001, rgb
-PIPE_FORMAT_RGTC2_UNORM           , compressed, 4, 4, x128,     ,     ,     , xy01, rgb
-PIPE_FORMAT_RGTC2_SNORM           , compressed, 4, 4, x128,     ,     ,     , xy01, rgb
+# - http://en.wikipedia.org/wiki/S3_Texture_Compression
+# - http://www.opengl.org/registry/specs/EXT/texture_compression_s3tc.txt
+# - http://www.opengl.org/registry/specs/ARB/texture_compression_rgtc.txt
+# - http://msdn.microsoft.com/en-us/library/bb694531.aspx
+PIPE_FORMAT_DXT1_RGB              , s3tc, 4, 4, x64 ,     ,     ,     , xyz1, rgb
+PIPE_FORMAT_DXT1_RGBA             , s3tc, 4, 4, x64 ,     ,     ,     , xyzw, rgb
+PIPE_FORMAT_DXT3_RGBA             , s3tc, 4, 4, x128,     ,     ,     , xyzw, rgb
+PIPE_FORMAT_DXT5_RGBA             , s3tc, 4, 4, x128,     ,     ,     , xyzw, rgb
+PIPE_FORMAT_DXT1_SRGB             , s3tc, 4, 4, x64 ,     ,     ,     , xyz1, srgb
+PIPE_FORMAT_DXT1_SRGBA            , s3tc, 4, 4, x64 ,     ,     ,     , xyzw, srgb
+PIPE_FORMAT_DXT3_SRGBA            , s3tc, 4, 4, x128,     ,     ,     , xyzw, srgb
+PIPE_FORMAT_DXT5_SRGBA            , s3tc, 4, 4, x128,     ,     ,     , xyzw, srgb
+
+PIPE_FORMAT_RGTC1_UNORM           , rgtc, 4, 4, x64,      ,     ,     , x001, rgb
+PIPE_FORMAT_RGTC1_SNORM           , rgtc, 4, 4, x64,      ,     ,     , x001, rgb
+PIPE_FORMAT_RGTC2_UNORM           , rgtc, 4, 4, x128,     ,     ,     , xy01, rgb
+PIPE_FORMAT_RGTC2_SNORM           , rgtc, 4, 4, x128,     ,     ,     , xy01, rgb
 
 # Straightforward D3D10-like formats (also used for 
 # vertex buffer element description)
diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h
index c08fdca..98d4b98 100644
--- a/src/gallium/auxiliary/util/u_format.h
+++ b/src/gallium/auxiliary/util/u_format.h
@@ -56,15 +56,23 @@ enum util_format_layout {
     *
     * This is for formats like YV12 where there is less than one sample per
     * pixel.
-    *
-    * XXX: This could actually b
     */
    UTIL_FORMAT_LAYOUT_SUBSAMPLED = 3,
 
    /**
-    * An unspecified compression algorithm.
+    * S3 Texture Compression formats.
+    */
+   UTIL_FORMAT_LAYOUT_S3TC = 4,
+
+   /**
+    * Red-Green Texture Compression formats.
+    */
+   UTIL_FORMAT_LAYOUT_RGTC = 5,
+
+   /**
+    * Everything else that doesn't fit in any of the above layouts.
     */
-   UTIL_FORMAT_LAYOUT_COMPRESSED = 4
+   UTIL_FORMAT_LAYOUT_OTHER = 6
 };
 
 
@@ -210,7 +218,7 @@ util_format_name(enum pipe_format format)
 }
 
 static INLINE boolean 
-util_format_is_compressed(enum pipe_format format)
+util_format_is_s3tc(enum pipe_format format)
 {
    const struct util_format_description *desc = util_format_description(format);
 
@@ -219,7 +227,7 @@ util_format_is_compressed(enum pipe_format format)
       return FALSE;
    }
 
-   return desc->layout == UTIL_FORMAT_LAYOUT_COMPRESSED ? TRUE : FALSE;
+   return desc->layout == UTIL_FORMAT_LAYOUT_S3TC ? TRUE : FALSE;
 }
 
 static INLINE boolean