mesa: remove len argument from _mesa_shader_debug()

There was only a single user which was using strlen(buf).
As this function is not user facing (i.e. we don't need to feed back
original length via a callback), we can simplify things.

Suggested-by: Timothy Arceri <timothy.arceri@collabora.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>

src/glsl/glsl_parser_extras.cpp

@@ -477,7 +477,7 @@ _mesa_glsl_msg(const YYLTYPE *locp, _mesa_glsl_parse_state *state,
    struct gl_context *ctx = state->ctx;
 
    /* Report the error via GL_ARB_debug_output. */
-   _mesa_shader_debug(ctx, type, &msg_id, msg, strlen(msg));
+   _mesa_shader_debug(ctx, type, &msg_id, msg);
 
    ralloc_strcat(&state->info_log, "\n");
 }

src/glsl/standalone_scaffolding.cpp

@@ -63,7 +63,7 @@ _mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
 
 void
 _mesa_shader_debug(struct gl_context *, GLenum, GLuint *,
-                   const char *, int)
+                   const char *)
 {
 }
 

src/glsl/standalone_scaffolding.h

@@ -52,7 +52,7 @@ _mesa_clear_shader_program_data(struct gl_shader_program *);
 
 extern "C" void
 _mesa_shader_debug(struct gl_context *ctx, GLenum type, GLuint *id,
-                   const char *msg, int len);
+                   const char *msg);
 
 static inline gl_shader_stage
 _mesa_shader_enum_to_shader_stage(GLenum v)

src/mesa/main/errors.c

@@ -1599,20 +1599,19 @@ _mesa_log(const char *fmtString, ...)
  * \param ctx GL context.
  * \param type The namespace to which this message belongs.
  * \param id The message ID within the given namespace.
- * \param msg The message to output. Need not be null-terminated.
- * \param len The length of 'msg'. If negative, 'msg' must be null-terminated.
+ * \param msg The message to output. Must be null-terminated.
  */
 void
-_mesa_shader_debug( struct gl_context *ctx, GLenum type, GLuint *id,
-                    const char *msg, int len )
+_mesa_shader_debug(struct gl_context *ctx, GLenum type, GLuint *id,
+                   const char *msg)
 {
    enum mesa_debug_source source = MESA_DEBUG_SOURCE_SHADER_COMPILER;
    enum mesa_debug_severity severity = MESA_DEBUG_SEVERITY_HIGH;
+   int len;
 
    debug_get_id(id);
 
-   if (len < 0)
-      len = strlen(msg);
+   len = strlen(msg);
 
    /* Truncate the message if necessary. */
    if (len >= MAX_DEBUG_MESSAGE_LENGTH)

src/mesa/main/errors.h

@@ -115,7 +115,7 @@ _mesa_get_debug_state_ptr(struct gl_context *ctx, GLenum pname);
 
 extern void
 _mesa_shader_debug(struct gl_context *ctx, GLenum type, GLuint *id,
-                   const char *msg, int len);
+                   const char *msg);
 
 void GLAPIENTRY
 _mesa_DebugMessageInsert(GLenum source, GLenum type, GLuint id,