intel: Annotate debug printout checks with unlikely().

This provides the optimizer with hints about code hotness, which we're
quite certain about for debug printouts (or, rather, while we
developers often hit the checks for debug printouts, we don't care
about performance while doing so).

1 files changed, 10 insertions, 16 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_pixel_read.c b/src/mesa/drivers/dri/intel/intel_pixel_read.c
index b249f9a5a0..54da29236d 100644
--- a/src/mesa/drivers/dri/intel/intel_pixel_read.c
+++ b/src/mesa/drivers/dri/intel/intel_pixel_read.c
@@ -42,6 +42,8 @@
 #include "intel_pixel.h"
 #include "intel_buffer_objects.h"
 
+#define FILE_DEBUG_FLAG DEBUG_PIXEL
+
 /* For many applications, the new ability to pull the source buffers
  * back out of the GTT and then do the packing/conversion operations
  * in software will be as much of an improvement as trying to get the
@@ -79,8 +81,7 @@ do_blit_readpixels(struct gl_context * ctx,
    GLboolean all;
    GLint dst_x, dst_y;
 
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      printf("%s\n", __FUNCTION__);
+   DBG("%s\n", __FUNCTION__);
 
    if (!src)
       return GL_FALSE;
@@ -88,22 +89,19 @@ do_blit_readpixels(struct gl_context * ctx,
    if (!_mesa_is_bufferobj(pack->BufferObj)) {
       /* PBO only for now:
        */
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         printf("%s - not PBO\n", __FUNCTION__);
+      DBG("%s - not PBO\n", __FUNCTION__);
       return GL_FALSE;
    }
 
 
    if (ctx->_ImageTransferState ||
        !intel_check_blit_format(src, format, type)) {
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         printf("%s - bad format for blit\n", __FUNCTION__);
+      DBG("%s - bad format for blit\n", __FUNCTION__);
       return GL_FALSE;
    }
 
    if (pack->Alignment != 1 || pack->SwapBytes || pack->LsbFirst) {
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         printf("%s: bad packing params\n", __FUNCTION__);
+      DBG("%s: bad packing params\n", __FUNCTION__);
       return GL_FALSE;
    }
 
@@ -113,8 +111,7 @@ do_blit_readpixels(struct gl_context * ctx,
       rowLength = width;
 
    if (pack->Invert) {
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         printf("%s: MESA_PACK_INVERT not done yet\n", __FUNCTION__);
+      DBG("%s: MESA_PACK_INVERT not done yet\n", __FUNCTION__);
       return GL_FALSE;
    }
    else {
@@ -158,8 +155,7 @@ do_blit_readpixels(struct gl_context * ctx,
       return GL_FALSE;
    }
 
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      printf("%s - DONE\n", __FUNCTION__);
+   DBG("%s - DONE\n", __FUNCTION__);
 
    return GL_TRUE;
 }
@@ -173,8 +169,7 @@ intelReadPixels(struct gl_context * ctx,
    struct intel_context *intel = intel_context(ctx);
    GLboolean dirty;
 
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      fprintf(stderr, "%s\n", __FUNCTION__);
+   DBG("%s\n", __FUNCTION__);
 
    intel_flush(ctx);
 
@@ -188,8 +183,7 @@ intelReadPixels(struct gl_context * ctx,
        (ctx, x, y, width, height, format, type, pack, pixels))
       return;
 
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      printf("%s: fallback to swrast\n", __FUNCTION__);
+   fallback_debug("%s: fallback to swrast\n", __FUNCTION__);
 
    /* Update Mesa state before calling down into _swrast_ReadPixels, as
     * the spans code requires the computed buffer states to be up to date,