[Mesa-dev] [PATCH 1/2] util: import cache.c/h from glsl

Marek Olšák maraeo at gmail.com
Tue Nov 15 19:07:00 UTC 2016


From: Marek Olšák <marek.olsak at amd.com>

It's not dependent on GLSL and it can be useful for shader caches that don't
deal with GLSL.

v2: address review comments
---
 configure.ac                                     |  4 ----
 src/compiler/Makefile.glsl.am                    |  4 ----
 src/compiler/Makefile.sources                    |  4 ----
 src/compiler/glsl/tests/cache_test.c             | 22 +---------------------
 src/util/Makefile.sources                        |  2 ++
 src/{compiler/glsl/cache.c => util/disk_cache.c} | 16 +++++++++-------
 src/{compiler/glsl/cache.h => util/disk_cache.h} | 11 +++++------
 7 files changed, 17 insertions(+), 46 deletions(-)
 rename src/{compiler/glsl/cache.c => util/disk_cache.c} (98%)
 rename src/{compiler/glsl/cache.h => util/disk_cache.h} (99%)

diff --git a/configure.ac b/configure.ac
index 9d62b90..90845e6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1354,24 +1354,20 @@ AC_ARG_ENABLE([shader-cache],
     [if test "x$with_sha1" != "x"; then
         enable_shader_cache=yes
      else
         enable_shader_cache=no
      fi])
 if test "x$with_sha1" = "x"; then
     if test "x$enable_shader_cache" = "xyes"; then
         AC_MSG_ERROR([Cannot enable shader cache (no SHA-1 implementation found)])
     fi
 fi
-AM_CONDITIONAL([ENABLE_SHADER_CACHE], [test x$enable_shader_cache = xyes])
-if test "x$enable_shader_cache" = "xyes"; then
-   AC_DEFINE([ENABLE_SHADER_CACHE], [1], [Enable shader cache])
-fi
 
 if test "x$enable_dri" = xyes; then
     if test "$enable_static" = yes; then
         AC_MSG_ERROR([Cannot use static libraries for DRI drivers])
     fi
 
     # not a hard requirement as swrast does not depend on it
     if test "x$have_libdrm" = xyes; then
         DRI_PC_REQ_PRIV="libdrm >= $LIBDRM_REQUIRED"
     fi
diff --git a/src/compiler/Makefile.glsl.am b/src/compiler/Makefile.glsl.am
index 3eac677..5b1d74e 100644
--- a/src/compiler/Makefile.glsl.am
+++ b/src/compiler/Makefile.glsl.am
@@ -124,24 +124,20 @@ glsl_glcpp_glcpp_LDADD =				\
 	-lm
 
 glsl_libglsl_la_LIBADD = \
 	nir/libnir.la \
 	glsl/libglcpp.la
 
 glsl_libglsl_la_SOURCES =				\
 	$(LIBGLSL_GENERATED_FILES)			\
 	$(LIBGLSL_FILES)
 
-if ENABLE_SHADER_CACHE
-glsl_libglsl_la_SOURCES += $(LIBGLSL_SHADER_CACHE_FILES)
-endif
-
 glsl_libstandalone_la_SOURCES = \
 	$(GLSL_COMPILER_CXX_FILES)
 
 glsl_libstandalone_la_LIBADD =				\
 	glsl/libglsl.la					\
 	$(top_builddir)/src/libglsl_util.la		\
 	$(top_builddir)/src/util/libmesautil.la		\
 	$(PTHREAD_LIBS)
 
 glsl_compiler_SOURCES = \
diff --git a/src/compiler/Makefile.sources b/src/compiler/Makefile.sources
index 08d93e0..d05bcac 100644
--- a/src/compiler/Makefile.sources
+++ b/src/compiler/Makefile.sources
@@ -129,24 +129,20 @@ LIBGLSL_FILES = \
 	glsl/opt_redundant_jumps.cpp \
 	glsl/opt_structure_splitting.cpp \
 	glsl/opt_swizzle_swizzle.cpp \
 	glsl/opt_tree_grafting.cpp \
 	glsl/opt_vectorize.cpp \
 	glsl/program.h \
 	glsl/propagate_invariance.cpp \
 	glsl/s_expression.cpp \
 	glsl/s_expression.h
 
-LIBGLSL_SHADER_CACHE_FILES = \
-	glsl/cache.c \
-	glsl/cache.h
-
 # glsl_compiler
 
 GLSL_COMPILER_CXX_FILES = \
 	glsl/ir_builder_print_visitor.cpp \
 	glsl/ir_builder_print_visitor.h \
 	glsl/opt_add_neg_to_sub.h \
 	glsl/standalone_scaffolding.cpp \
 	glsl/standalone_scaffolding.h \
 	glsl/standalone.cpp \
 	glsl/standalone.h
diff --git a/src/compiler/glsl/tests/cache_test.c b/src/compiler/glsl/tests/cache_test.c
index 724dfcd..94a3c1d 100644
--- a/src/compiler/glsl/tests/cache_test.c
+++ b/src/compiler/glsl/tests/cache_test.c
@@ -25,45 +25,25 @@
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdbool.h>
 #include <string.h>
 #include <ftw.h>
 #include <errno.h>
 #include <stdarg.h>
 
 #include "util/mesa-sha1.h"
-#include "cache.h"
+#include "util/disk_cache.h"
 
 bool error = false;
 
 #ifdef ENABLE_SHADER_CACHE
-void
-_mesa_warning(void *ctx, const char *fmt, ...);
-
-void
-_mesa_warning(void *ctx, const char *fmt, ...)
-{
-    va_list vargs;
-    (void) ctx;
-
-    va_start(vargs, fmt);
-
-    /* This output is not thread-safe, but that's good enough for the
-     * standalone compiler.
-     */
-    fprintf(stderr, "Mesa warning: ");
-    vfprintf(stderr, fmt, vargs);
-    fprintf(stderr, "\n");
-
-    va_end(vargs);
-}
 
 static void
 expect_equal(uint64_t actual, uint64_t expected, const char *test)
 {
    if (actual != expected) {
       fprintf(stderr, "Error: Test '%s' failed: Expected=%ld, Actual=%ld\n",
               test, expected, actual);
       error = true;
    }
 }
diff --git a/src/util/Makefile.sources b/src/util/Makefile.sources
index c5531c8..b7ca347 100644
--- a/src/util/Makefile.sources
+++ b/src/util/Makefile.sources
@@ -1,16 +1,18 @@
 MESA_UTIL_FILES :=	\
 	bitscan.c \
 	bitscan.h \
 	bitset.h \
 	debug.c \
 	debug.h \
+	disk_cache.c \
+	disk_cache.h \
 	format_r11g11b10f.h \
 	format_rgb9e5.h \
 	format_srgb.h \
 	half_float.c \
 	half_float.h \
 	hash_table.c	\
 	hash_table.h \
 	list.h \
 	macros.h \
 	mesa-sha1.c \
diff --git a/src/compiler/glsl/cache.c b/src/util/disk_cache.c
similarity index 98%
rename from src/compiler/glsl/cache.c
rename to src/util/disk_cache.c
index e74c27d..79242aa 100644
--- a/src/compiler/glsl/cache.c
+++ b/src/util/disk_cache.c
@@ -14,40 +14,42 @@
  *
  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE AUTHORS OR COPYRIGHT HOLDERS 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.
  */
 
+#ifdef ENABLE_SHADER_CACHE
+
 #include <ctype.h>
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <sys/file.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/mman.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <pwd.h>
 #include <errno.h>
 #include <dirent.h>
 
 #include "util/u_atomic.h"
 #include "util/mesa-sha1.h"
 #include "util/ralloc.h"
 #include "main/errors.h"
 
-#include "cache.h"
+#include "disk_cache.h"
 
 /* Number of bits to mask off from a cache key to get an index. */
 #define CACHE_INDEX_KEY_BITS 16
 
 /* Mask for computing an index from a key. */
 #define CACHE_INDEX_KEY_MASK ((1 << CACHE_INDEX_KEY_BITS) - 1)
 
 /* The number of keys that can be stored in the index. */
 #define CACHE_INDEX_MAX_KEYS (1 << CACHE_INDEX_KEY_BITS)
 
@@ -79,34 +81,32 @@ mkdir_if_needed(char *path)
 {
    struct stat sb;
 
    /* If the path exists already, then our work is done if it's a
     * directory, but it's an error if it is not.
     */
    if (stat(path, &sb) == 0) {
       if (S_ISDIR(sb.st_mode)) {
          return 0;
       } else {
-         _mesa_warning(NULL,
-                       "Cannot use %s for shader cache (not a directory)"
-                       "---disabling.\n", path);
+         fprintf(stderr, "Cannot use %s for shader cache (not a directory)"
+                         "---disabling.\n", path);
          return -1;
       }
    }
 
    int ret = mkdir(path, 0755);
    if (ret == 0 || (ret == -1 && errno == EEXIST))
      return 0;
 
-   _mesa_warning(NULL,
-                 "Failed to create %s for shader cache (%s)---disabling.\n",
-                 path, strerror(errno));
+   fprintf(stderr, "Failed to create %s for shader cache (%s)---disabling.\n",
+           path, strerror(errno));
 
    return -1;
 }
 
 /* Concatenate an existing path and a new name to form a new path.  If the new
  * path does not exist as a directory, create it then return the resulting
  * name of the new path (ralloc'ed off of 'ctx').
  *
  * Returns NULL on any error, such as:
  *
@@ -701,10 +701,12 @@ bool
 cache_has_key(struct program_cache *cache, cache_key key)
 {
    uint32_t *key_chunk = (uint32_t *) key;
    int i = *key_chunk & CACHE_INDEX_KEY_MASK;
    unsigned char *entry;
 
    entry = &cache->stored_keys[i + CACHE_KEY_SIZE];
 
    return memcmp(entry, key, CACHE_KEY_SIZE) == 0;
 }
+
+#endif
diff --git a/src/compiler/glsl/cache.h b/src/util/disk_cache.h
similarity index 99%
rename from src/compiler/glsl/cache.h
rename to src/util/disk_cache.h
index d804169..d4d9398 100644
--- a/src/compiler/glsl/cache.h
+++ b/src/util/disk_cache.h
@@ -14,31 +14,30 @@
  *
  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE AUTHORS OR COPYRIGHT HOLDERS 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.
  */
 
-#pragma once
-#ifndef CACHE_H
-#define CACHE_H
+#ifndef DISK_CACHE_H
+#define DISK_CACHE_H
+
+#include <stdint.h>
+#include <stdbool.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include <stdint.h>
-#include <stdbool.h>
-
 /* Size of cache keys in bytes. */
 #define CACHE_KEY_SIZE 20
 
 typedef uint8_t cache_key[CACHE_KEY_SIZE];
 
 /* Provide inlined stub functions if the shader cache is disabled. */
 
 #ifdef ENABLE_SHADER_CACHE
 
 /**
-- 
2.7.4



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