Move shader-cache code from back to front and make generate_sha1() usable
unconditionally to avoid code duplication in the following patch
---
src/mesa/main/shaderapi.c | 228 +++++++++++++++++++++++-----------------------
1 file changed, 116 insertions(+), 112 deletions(-)
diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index 44b18af492..e8acca4490 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -64,6 +64,122 @@
#include "util/mesa-sha1.h"
#include "util/crc32.h"
+
+/**
+ * Generate a SHA-1 hash value string for given source string.
+ */
+static void
+generate_sha1(const char *source, char sha_str[64])
+{
+ unsigned char sha[20];
+ _mesa_sha1_compute(source, strlen(source), sha);
+ _mesa_sha1_format(sha_str, sha);
+}
+
+
+#ifdef ENABLE_SHADER_CACHE
+/**
+ * Construct a full path for shader replacement functionality using
+ * following format:
+ *
+ * <path>/<stage prefix>_<CHECKSUM>.glsl
+ */
+static char *
+construct_name(const gl_shader_stage stage, const char *source,
+ const char *path)
+{
+ char sha[64];
+ static const char *types[] = {
+ "VS", "TC", "TE", "GS", "FS", "CS",
+ };
+
+ generate_sha1(source, sha);
+ return ralloc_asprintf(NULL, "%s/%s_%s.glsl", path, types[stage], sha);
+}
+
+/**
+ * Write given shader source to a file in MESA_SHADER_DUMP_PATH.
+ */
+static void
+dump_shader(const gl_shader_stage stage, const char *source)
+{
+ static bool path_exists = true;
+ char *dump_path;
+ FILE *f;
+
+ if (!path_exists)
+ return;
+
+ dump_path = getenv("MESA_SHADER_DUMP_PATH");
+ if (!dump_path) {
+ path_exists = false;
+ return;
+ }
+
+ char *name = construct_name(stage, source, dump_path);
+
+ f = fopen(name, "w");
+ if (f) {
+ fputs(source, f);
+ fclose(f);
+ } else {
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_warning(ctx, "could not open %s for dumping shader (%s)", name,
+ strerror(errno));
+ }
+ ralloc_free(name);
+}
+
+/**
+ * Read shader source code from a file.
+ * Useful for debugging to override an app's shader.
+ */
+static GLcharARB *
+read_shader(const gl_shader_stage stage, const char *source)
+{
+ char *read_path;
+ static bool path_exists = true;
+ int len, shader_size = 0;
+ GLcharARB *buffer;
+ FILE *f;
+
+ if (!path_exists)
+ return NULL;
+
+ read_path = getenv("MESA_SHADER_READ_PATH");
+ if (!read_path) {
+ path_exists = false;
+ return NULL;
+ }
+
+ char *name = construct_name(stage, source, read_path);
+ f = fopen(name, "r");
+ ralloc_free(name);
+ if (!f)
+ return NULL;
+
+ /* allocate enough room for the entire shader */
+ fseek(f, 0, SEEK_END);
+ shader_size = ftell(f);
+ rewind(f);
+ assert(shader_size);
+
+ /* add one for terminating zero */
+ shader_size++;
+
+ buffer = malloc(shader_size);
+ assert(buffer);
+
+ len = fread(buffer, 1, shader_size, f);
+ buffer[len] = 0;
+
+ fclose(f);
+
+ return buffer;
+}
+
+#endif /* ENABLE_SHADER_CACHE */
+
/**
* Return mask of GLSL_x flags by examining the MESA_GLSL env var.
*/
@@ -1775,119 +1891,7 @@ _mesa_LinkProgram(GLuint programObj)
link_program_error(ctx, shProg);
}
-#ifdef ENABLE_SHADER_CACHE
-/**
- * Generate a SHA-1 hash value string for given source string.
- */
-static void
-generate_sha1(const char *source, char sha_str[64])
-{
- unsigned char sha[20];
- _mesa_sha1_compute(source, strlen(source), sha);
- _mesa_sha1_format(sha_str, sha);
-}
-
-/**
- * Construct a full path for shader replacement functionality using
- * following format:
- *
- * <path>/<stage prefix>_<CHECKSUM>.glsl
- */
-static char *
-construct_name(const gl_shader_stage stage, const char *source,
- const char *path)
-{
- char sha[64];
- static const char *types[] = {
- "VS", "TC", "TE", "GS", "FS", "CS",
- };
-
- generate_sha1(source, sha);
- return ralloc_asprintf(NULL, "%s/%s_%s.glsl", path, types[stage], sha);
-}
-
-/**
- * Write given shader source to a file in MESA_SHADER_DUMP_PATH.
- */
-static void
-dump_shader(const gl_shader_stage stage, const char *source)
-{
- static bool path_exists = true;
- char *dump_path;
- FILE *f;
-
- if (!path_exists)
- return;
-
- dump_path = getenv("MESA_SHADER_DUMP_PATH");
- if (!dump_path) {
- path_exists = false;
- return;
- }
-
- char *name = construct_name(stage, source, dump_path);
-
- f = fopen(name, "w");
- if (f) {
- fputs(source, f);
- fclose(f);
- } else {
- GET_CURRENT_CONTEXT(ctx);
- _mesa_warning(ctx, "could not open %s for dumping shader (%s)", name,
- strerror(errno));
- }
- ralloc_free(name);
-}
-
-/**
- * Read shader source code from a file.
- * Useful for debugging to override an app's shader.
- */
-static GLcharARB *
-read_shader(const gl_shader_stage stage, const char *source)
-{
- char *read_path;
- static bool path_exists = true;
- int len, shader_size = 0;
- GLcharARB *buffer;
- FILE *f;
-
- if (!path_exists)
- return NULL;
- read_path = getenv("MESA_SHADER_READ_PATH");
- if (!read_path) {
- path_exists = false;
- return NULL;
- }
-
- char *name = construct_name(stage, source, read_path);
- f = fopen(name, "r");
- ralloc_free(name);
- if (!f)
- return NULL;
-
- /* allocate enough room for the entire shader */
- fseek(f, 0, SEEK_END);
- shader_size = ftell(f);
- rewind(f);
- assert(shader_size);
-
- /* add one for terminating zero */
- shader_size++;
-
- buffer = malloc(shader_size);
- assert(buffer);
-
- len = fread(buffer, 1, shader_size, f);
- buffer[len] = 0;
-
- fclose(f);
-
- return buffer;
-}
-
-#endif /* ENABLE_SHADER_CACHE */
/**
* Called via glShaderSource() and glShaderSourceARB() API functions.
--
2.14.1
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