vrend,stringbuf: Add line numbers to shader dumps

This helps a lot locating errors in the shaders.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

src/vrend_renderer.c

@@ -834,7 +834,7 @@ static void vrend_shader_dump(struct vrend_shader *shader)
 {
    const char *prefix = pipe_shader_to_prefix(shader->sel->type);
    vrend_printf("%s: %d GLSL:\n", prefix, shader->id);
-   strarray_dump(&shader->glsl_strings);
+   strarray_dump_with_line_numbers(&shader->glsl_strings);
    vrend_printf("\n");
 }
 

src/vrend_strbuf.h

@@ -203,4 +203,18 @@ static inline void strarray_dump(struct vrend_strarray *sa)
       vrend_printf("%s", sa->strings[i].buf);
 }
 
+static inline void strarray_dump_with_line_numbers(struct vrend_strarray *sa)
+{
+   int lineno = 1;
+   for (int i = 0; i < sa->num_strings; i++) {
+      char *saveptr;
+      char *line = strtok_r(sa->strings[i].buf, "\n", &saveptr);
+      while (line) {
+         vrend_printf("%4d: %s\n", lineno++, line);
+         line = strtok_r(NULL, "\n", &saveptr);
+      }
+   }
+}
+
+
 #endif