radeon: Add support for indenting debug output.

Indetion can be used to make it easier to read debug code when sections of debug output are indented.

src/mesa/drivers/dri/radeon/radeon_common_context.h

@@ -467,6 +467,8 @@ struct radeon_context {
 
    struct radeon_cmdbuf cmdbuf;
 
+   struct radeon_debug debug;
+
   drm_clip_rect_t fboRect;
   GLboolean constant_cliprect; /* use for FBO or DRI2 rendering */
   GLboolean front_cliprects;

src/mesa/drivers/dri/radeon/radeon_cs_legacy.c

@@ -32,6 +32,7 @@
 #include <errno.h>
 
 #include "radeon_bocs_wrapper.h"
+#include "radeon_common.h"
 
 struct cs_manager_legacy {
     struct radeon_cs_manager    base;

src/mesa/drivers/dri/radeon/radeon_cs_legacy.h

@@ -32,7 +32,7 @@
 #ifndef RADEON_CS_LEGACY_H
 #define RADEON_CS_LEGACY_H
 
-#include "radeon_common.h"
+struct radeon_context;
 
 struct radeon_cs_manager *radeon_cs_manager_legacy_ctor(struct radeon_context *ctx);
 void radeon_cs_manager_legacy_dtor(struct radeon_cs_manager *csm);

src/mesa/drivers/dri/radeon/radeon_debug.c

@@ -30,6 +30,7 @@
 #include "utils.h"
 
 #include "radeon_debug.h"
+#include "radeon_common_context.h"
 
 static const struct dri_debug_control debug_control[] = {
 	{"fall", RADEON_FALLBACKS},
@@ -61,3 +62,37 @@ void radeon_init_debug(void)
 
 	radeon_enabled_debug_types |= RADEON_GENERAL;
 }
+
+void _radeon_debug_add_indent(void)
+{
+	GET_CURRENT_CONTEXT(ctx);
+	radeonContextPtr radeon = RADEON_CONTEXT(ctx);
+	const size_t length = sizeof(radeon->debug.indent)
+		/ sizeof(radeon->debug.indent[0]);
+	if (radeon->debug.indent_depth < length - 1) {
+		radeon->debug.indent[radeon->debug.indent_depth] = '\t';
+		++radeon->debug.indent_depth;
+	};
+}
+
+void _radeon_debug_remove_indent(void)
+{
+	GET_CURRENT_CONTEXT(ctx);
+	radeonContextPtr radeon = RADEON_CONTEXT(ctx);
+	if (radeon->debug.indent_depth > 0) {
+		radeon->debug.indent[radeon->debug.indent_depth] = '\0';
+		--radeon->debug.indent_depth;
+	}
+}
+
+extern void _radeon_print(const radeon_debug_type_t type,
+	   const radeon_debug_level_t level,
+	   const char* message,
+	   va_list values)
+{
+	GET_CURRENT_CONTEXT(ctx);
+	radeonContextPtr radeon = RADEON_CONTEXT(ctx);
+	// FIXME: Make this multi thread safe
+	fprintf(stderr, "%s", radeon->debug.indent);
+	vfprintf(stderr, message, values);
+}

src/mesa/drivers/dri/radeon/radeon_debug.h

@@ -71,6 +71,13 @@ typedef enum radeon_debug_types {
 	RADEON_GENERAL   = 0x10000   /* Used for errors and warnings */
 } radeon_debug_type_t;
 
+#define RADEON_MAX_INDENT 5
+
+struct radeon_debug {
+       size_t indent_depth;
+       char indent[RADEON_MAX_INDENT];
+};
+
 extern radeon_debug_type_t radeon_enabled_debug_types;
 
 /**
@@ -91,6 +98,11 @@ static inline int radeon_is_debug_enabled(const radeon_debug_type_t type,
 #define  __attribute__(x)  /*empty*/
 #endif
 
+
+extern void _radeon_print(const radeon_debug_type_t type,
+	   const radeon_debug_level_t level,
+	   const char* message,
+	   va_list values);
 /**
  * Format attribute requires declaration for setting it. Don't ask me why!
  */
@@ -113,7 +125,7 @@ static inline void radeon_print(const radeon_debug_type_t type,
 
 		va_list values;
 		va_start( values, message );
-		vfprintf(stderr, message, values);
+		_radeon_print(type, level, message, values);
 		va_end( values );
 	}
 }
@@ -142,8 +154,22 @@ static inline void radeon_warning(const char* message, ...)
        va_end( values );
 }
 
-
 extern void radeon_init_debug(void);
+extern void _radeon_debug_add_indent(void);
+extern void _radeon_debug_remove_indent(void);
+
+static inline void radeon_debug_add_indent(void)
+{
+       if (RADEON_DEBUG_LEVEL >= RADEON_VERBOSE) {
+	      _radeon_debug_add_indent();
+       }
+}
+static inline void radeon_debug_remove_indent(void)
+{
+       if (RADEON_DEBUG_LEVEL >= RADEON_VERBOSE) {
+	      _radeon_debug_remove_indent();
+       }
+}
 
 /* From http://gcc. gnu.org/onlinedocs/gcc-3.2.3/gcc/Variadic-Macros.html .
    I suppose we could inline this and use macro to fetch out __LINE__ and stuff in case we run into trouble