xserver libX11 libxcb mesa git update 6 Apr 2011

1 files changed, 634 insertions, 634 deletions

diff --git a/mesalib/src/mesa/main/debug.c b/mesalib/src/mesa/main/debug.c
index 2a8fd0880..99030ac8e 100644
--- a/mesalib/src/mesa/main/debug.c
+++ b/mesalib/src/mesa/main/debug.c
@@ -1,634 +1,634 @@
-/*
- * Mesa 3-D graphics library
- * Version:  6.5
- *
- * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
- * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include "mtypes.h"
-#include "attrib.h"
-#include "colormac.h"
-#include "enums.h"
-#include "formats.h"
-#include "hash.h"
-#include "imports.h"
-#include "debug.h"
-#include "get.h"
-#include "pixelstore.h"
-#include "readpix.h"
-#include "texobj.h"
-
-
-static const char *
-tex_target_name(GLenum tgt)
-{
-   static const struct {
-      GLenum target;
-      const char *name;
-   } tex_targets[] = {
-      { GL_TEXTURE_1D, "GL_TEXTURE_1D" },
-      { GL_TEXTURE_2D, "GL_TEXTURE_2D" },
-      { GL_TEXTURE_3D, "GL_TEXTURE_3D" },
-      { GL_TEXTURE_CUBE_MAP, "GL_TEXTURE_CUBE_MAP" },
-      { GL_TEXTURE_RECTANGLE, "GL_TEXTURE_RECTANGLE" },
-      { GL_TEXTURE_1D_ARRAY_EXT, "GL_TEXTURE_1D_ARRAY" },
-      { GL_TEXTURE_2D_ARRAY_EXT, "GL_TEXTURE_2D_ARRAY" }
-   };
-   GLuint i;
-   for (i = 0; i < Elements(tex_targets); i++) {
-      if (tex_targets[i].target == tgt)
-         return tex_targets[i].name;
-   }
-   return "UNKNOWN TEX TARGET";
-}
-
-
-void
-_mesa_print_state( const char *msg, GLuint state )
-{
-   _mesa_debug(NULL,
-	   "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
-	   msg,
-	   state,
-	   (state & _NEW_MODELVIEW)       ? "ctx->ModelView, " : "",
-	   (state & _NEW_PROJECTION)      ? "ctx->Projection, " : "",
-	   (state & _NEW_TEXTURE_MATRIX)  ? "ctx->TextureMatrix, " : "",
-	   (state & _NEW_COLOR)           ? "ctx->Color, " : "",
-	   (state & _NEW_DEPTH)           ? "ctx->Depth, " : "",
-	   (state & _NEW_EVAL)            ? "ctx->Eval/EvalMap, " : "",
-	   (state & _NEW_FOG)             ? "ctx->Fog, " : "",
-	   (state & _NEW_HINT)            ? "ctx->Hint, " : "",
-	   (state & _NEW_LIGHT)           ? "ctx->Light, " : "",
-	   (state & _NEW_LINE)            ? "ctx->Line, " : "",
-	   (state & _NEW_PIXEL)           ? "ctx->Pixel, " : "",
-	   (state & _NEW_POINT)           ? "ctx->Point, " : "",
-	   (state & _NEW_POLYGON)         ? "ctx->Polygon, " : "",
-	   (state & _NEW_POLYGONSTIPPLE)  ? "ctx->PolygonStipple, " : "",
-	   (state & _NEW_SCISSOR)         ? "ctx->Scissor, " : "",
-	   (state & _NEW_STENCIL)         ? "ctx->Stencil, " : "",
-	   (state & _NEW_TEXTURE)         ? "ctx->Texture, " : "",
-	   (state & _NEW_TRANSFORM)       ? "ctx->Transform, " : "",
-	   (state & _NEW_VIEWPORT)        ? "ctx->Viewport, " : "",
-	   (state & _NEW_PACKUNPACK)      ? "ctx->Pack/Unpack, " : "",
-	   (state & _NEW_ARRAY)           ? "ctx->Array, " : "",
-	   (state & _NEW_RENDERMODE)      ? "ctx->RenderMode, " : "",
-	   (state & _NEW_BUFFERS)         ? "ctx->Visual, ctx->DrawBuffer,, " : "");
-}
-
-
-
-void
-_mesa_print_tri_caps( const char *name, GLuint flags )
-{
-   _mesa_debug(NULL,
-	   "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s\n",
-	   name,
-	   flags,
-	   (flags & DD_FLATSHADE)           ? "flat-shade, " : "",
-	   (flags & DD_SEPARATE_SPECULAR)   ? "separate-specular, " : "",
-	   (flags & DD_TRI_LIGHT_TWOSIDE)   ? "tri-light-twoside, " : "",
-	   (flags & DD_TRI_TWOSTENCIL)      ? "tri-twostencil, " : "",
-	   (flags & DD_TRI_UNFILLED)        ? "tri-unfilled, " : "",
-	   (flags & DD_TRI_STIPPLE)         ? "tri-stipple, " : "",
-	   (flags & DD_TRI_OFFSET)          ? "tri-offset, " : "",
-	   (flags & DD_TRI_SMOOTH)          ? "tri-smooth, " : "",
-	   (flags & DD_LINE_SMOOTH)         ? "line-smooth, " : "",
-	   (flags & DD_LINE_STIPPLE)        ? "line-stipple, " : "",
-	   (flags & DD_POINT_SMOOTH)        ? "point-smooth, " : "",
-	   (flags & DD_POINT_ATTEN)         ? "point-atten, " : "",
-	   (flags & DD_TRI_CULL_FRONT_BACK) ? "cull-all, " : ""
-      );
-}
-
-
-/**
- * Print information about this Mesa version and build options.
- */
-void _mesa_print_info( void )
-{
-   _mesa_debug(NULL, "Mesa GL_VERSION = %s\n",
-	   (char *) _mesa_GetString(GL_VERSION));
-   _mesa_debug(NULL, "Mesa GL_RENDERER = %s\n",
-	   (char *) _mesa_GetString(GL_RENDERER));
-   _mesa_debug(NULL, "Mesa GL_VENDOR = %s\n",
-	   (char *) _mesa_GetString(GL_VENDOR));
-   _mesa_debug(NULL, "Mesa GL_EXTENSIONS = %s\n",
-	   (char *) _mesa_GetString(GL_EXTENSIONS));
-#if defined(THREADS)
-   _mesa_debug(NULL, "Mesa thread-safe: YES\n");
-#else
-   _mesa_debug(NULL, "Mesa thread-safe: NO\n");
-#endif
-#if defined(USE_X86_ASM)
-   _mesa_debug(NULL, "Mesa x86-optimized: YES\n");
-#else
-   _mesa_debug(NULL, "Mesa x86-optimized: NO\n");
-#endif
-#if defined(USE_SPARC_ASM)
-   _mesa_debug(NULL, "Mesa sparc-optimized: YES\n");
-#else
-   _mesa_debug(NULL, "Mesa sparc-optimized: NO\n");
-#endif
-}
-
-
-/**
- * Set the debugging flags.
- *
- * \param debug debug string
- *
- * If compiled with debugging support then search for keywords in \p debug and
- * enables the verbose debug output of the respective feature.
- */
-static void add_debug_flags( const char *debug )
-{
-#ifdef DEBUG
-   struct debug_option {
-      const char *name;
-      GLbitfield flag;
-   };
-   static const struct debug_option debug_opt[] = {
-      { "varray",    VERBOSE_VARRAY },
-      { "tex",       VERBOSE_TEXTURE },
-      { "mat",       VERBOSE_MATERIAL },
-      { "pipe",      VERBOSE_PIPELINE },
-      { "driver",    VERBOSE_DRIVER },
-      { "state",     VERBOSE_STATE },
-      { "api",       VERBOSE_API },
-      { "list",      VERBOSE_DISPLAY_LIST },
-      { "lighting",  VERBOSE_LIGHTING },
-      { "disassem",  VERBOSE_DISASSEM },
-      { "draw",      VERBOSE_DRAW },
-      { "swap",      VERBOSE_SWAPBUFFERS }
-   };
-   GLuint i;
-
-   MESA_VERBOSE = 0x0;
-   for (i = 0; i < Elements(debug_opt); i++) {
-      if (strstr(debug, debug_opt[i].name))
-         MESA_VERBOSE |= debug_opt[i].flag;
-   }
-
-   /* Debug flag:
-    */
-   if (strstr(debug, "flush"))
-      MESA_DEBUG_FLAGS |= DEBUG_ALWAYS_FLUSH;
-
-#if defined(_FPU_GETCW) && defined(_FPU_SETCW)
-   if (strstr(debug, "fpexceptions")) {
-      /* raise FP exceptions */
-      fpu_control_t mask;
-      _FPU_GETCW(mask);
-      mask &= ~(_FPU_MASK_IM | _FPU_MASK_DM | _FPU_MASK_ZM
-                | _FPU_MASK_OM | _FPU_MASK_UM);
-      _FPU_SETCW(mask);
-   }
-#endif
-
-#else
-   (void) debug;
-#endif
-}
-
-
-void 
-_mesa_init_debug( struct gl_context *ctx )
-{
-   char *c;
-   c = _mesa_getenv("MESA_DEBUG");
-   if (c)
-      add_debug_flags(c);
-
-   c = _mesa_getenv("MESA_VERBOSE");
-   if (c)
-      add_debug_flags(c);
-}
-
-
-/*
- * Write ppm file
- */
-static void
-write_ppm(const char *filename, const GLubyte *buffer, int width, int height,
-          int comps, int rcomp, int gcomp, int bcomp, GLboolean invert)
-{
-   FILE *f = fopen( filename, "w" );
-   if (f) {
-      int x, y;
-      const GLubyte *ptr = buffer;
-      fprintf(f,"P6\n");
-      fprintf(f,"# ppm-file created by osdemo.c\n");
-      fprintf(f,"%i %i\n", width,height);
-      fprintf(f,"255\n");
-      fclose(f);
-      f = fopen( filename, "ab" );  /* reopen in binary append mode */
-      for (y=0; y < height; y++) {
-         for (x = 0; x < width; x++) {
-            int yy = invert ? (height - 1 - y) : y;
-            int i = (yy * width + x) * comps;
-            fputc(ptr[i+rcomp], f); /* write red */
-            fputc(ptr[i+gcomp], f); /* write green */
-            fputc(ptr[i+bcomp], f); /* write blue */
-         }
-      }
-      fclose(f);
-   }
-   else {
-      fprintf(stderr, "Unable to create %s in write_ppm()\n", filename);
-   }
-}
-
-
-/**
- * Write a texture image to a ppm file.
- * \param face  cube face in [0,5]
- * \param level  mipmap level
- */
-static void
-write_texture_image(struct gl_texture_object *texObj,
-                    GLuint face, GLuint level)
-{
-   struct gl_texture_image *img = texObj->Image[face][level];
-   if (img) {
-      GET_CURRENT_CONTEXT(ctx);
-      struct gl_pixelstore_attrib store;
-      GLubyte *buffer;
-      char s[100];
-
-      buffer = (GLubyte *) malloc(img->Width * img->Height
-                                        * img->Depth * 4);
-
-      store = ctx->Pack; /* save */
-      ctx->Pack = ctx->DefaultPacking;
-
-      ctx->Driver.GetTexImage(ctx, texObj->Target, level,
-                              GL_RGBA, GL_UNSIGNED_BYTE,
-                              buffer, texObj, img);
-
-      /* make filename */
-      _mesa_snprintf(s, sizeof(s), "/tmp/tex%u.l%u.f%u.ppm", texObj->Name, level, face);
-
-      printf("  Writing image level %u to %s\n", level, s);
-      write_ppm(s, buffer, img->Width, img->Height, 4, 0, 1, 2, GL_FALSE);
-
-      ctx->Pack = store; /* restore */
-
-      free(buffer);
-   }
-}
-
-
-/**
- * Write renderbuffer image to a ppm file.
- */
-void
-_mesa_write_renderbuffer_image(const struct gl_renderbuffer *rb)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   GLubyte *buffer;
-   char s[100];
-   GLenum format, type;
-
-   if (rb->_BaseFormat == GL_RGB || 
-       rb->_BaseFormat == GL_RGBA) {
-      format = GL_RGBA;
-      type = GL_UNSIGNED_BYTE;
-   }
-   else if (rb->_BaseFormat == GL_DEPTH_STENCIL) {
-      format = GL_DEPTH_STENCIL;
-      type = GL_UNSIGNED_INT_24_8;
-   }
-   else {
-      _mesa_debug(NULL,
-                  "Unsupported BaseFormat 0x%x in "
-                  "_mesa_write_renderbuffer_image()\n",
-                  rb->_BaseFormat);
-      return;
-   }
-
-   buffer = (GLubyte *) malloc(rb->Width * rb->Height * 4);
-
-   ctx->Driver.ReadPixels(ctx, 0, 0, rb->Width, rb->Height,
-                          format, type, &ctx->DefaultPacking, buffer);
-
-   /* make filename */
-   _mesa_snprintf(s, sizeof(s), "/tmp/renderbuffer%u.ppm", rb->Name);
-   _mesa_snprintf(s, sizeof(s), "C:\\renderbuffer%u.ppm", rb->Name);
-
-   printf("  Writing renderbuffer image to %s\n", s);
-
-   _mesa_debug(NULL, "  Writing renderbuffer image to %s\n", s);
-
-   write_ppm(s, buffer, rb->Width, rb->Height, 4, 0, 1, 2, GL_TRUE);
-
-   free(buffer);
-}
-
-
-/** How many texture images (mipmap levels, faces) to write to files */
-#define WRITE_NONE 0
-#define WRITE_ONE  1
-#define WRITE_ALL  2
-
-static GLuint WriteImages;
-
-
-static void
-dump_texture(struct gl_texture_object *texObj, GLuint writeImages)
-{
-   const GLuint numFaces = texObj->Target == GL_TEXTURE_CUBE_MAP ? 6 : 1;
-   GLboolean written = GL_FALSE;
-   GLuint i, j;
-
-   printf("Texture %u\n", texObj->Name);
-   printf("  Target %s\n", tex_target_name(texObj->Target));
-   for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
-      for (j = 0; j < numFaces; j++) {
-         struct gl_texture_image *texImg = texObj->Image[j][i];
-         if (texImg) {
-            printf("  Face %u level %u: %d x %d x %d, format %s at %p\n",
-		   j, i,
-		   texImg->Width, texImg->Height, texImg->Depth,
-		   _mesa_get_format_name(texImg->TexFormat),
-		   texImg->Data);
-            if (writeImages == WRITE_ALL ||
-                (writeImages == WRITE_ONE && !written)) {
-               write_texture_image(texObj, j, i);
-               written = GL_TRUE;
-            }
-         }
-      }
-   }
-}
-
-
-/**
- * Dump a single texture.
- */
-void
-_mesa_dump_texture(GLuint texture, GLuint writeImages)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   struct gl_texture_object *texObj = _mesa_lookup_texture(ctx, texture);
-   if (texObj) {
-      dump_texture(texObj, writeImages);
-   }
-}
-
-
-static void
-dump_texture_cb(GLuint id, void *data, void *userData)
-{
-   struct gl_texture_object *texObj = (struct gl_texture_object *) data;
-   (void) userData;
-   dump_texture(texObj, WriteImages);
-}
-
-
-/**
- * Print basic info about all texture objext to stdout.
- * If dumpImages is true, write PPM of level[0] image to a file.
- */
-void
-_mesa_dump_textures(GLuint writeImages)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   WriteImages = writeImages;
-   _mesa_HashWalk(ctx->Shared->TexObjects, dump_texture_cb, ctx);
-}
-
-
-static void
-dump_renderbuffer(const struct gl_renderbuffer *rb, GLboolean writeImage)
-{
-   printf("Renderbuffer %u: %u x %u  IntFormat = %s\n",
-	  rb->Name, rb->Width, rb->Height,
-	  _mesa_lookup_enum_by_nr(rb->InternalFormat));
-   if (writeImage) {
-      _mesa_write_renderbuffer_image(rb);
-   }
-}
-
-
-static void
-dump_renderbuffer_cb(GLuint id, void *data, void *userData)
-{
-   const struct gl_renderbuffer *rb = (const struct gl_renderbuffer *) data;
-   (void) userData;
-   dump_renderbuffer(rb, WriteImages);
-}
-
-
-/**
- * Print basic info about all renderbuffers to stdout.
- * If dumpImages is true, write PPM of level[0] image to a file.
- */
-void
-_mesa_dump_renderbuffers(GLboolean writeImages)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   WriteImages = writeImages;
-   _mesa_HashWalk(ctx->Shared->RenderBuffers, dump_renderbuffer_cb, ctx);
-}
-
-
-
-void
-_mesa_dump_color_buffer(const char *filename)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   const GLuint w = ctx->DrawBuffer->Width;
-   const GLuint h = ctx->DrawBuffer->Height;
-   GLubyte *buf;
-
-   buf = (GLubyte *) malloc(w * h * 4);
-
-   _mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
-   _mesa_PixelStorei(GL_PACK_ALIGNMENT, 1);
-   _mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE);
-
-   _mesa_ReadPixels(0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, buf);
-
-   printf("ReadBuffer %p 0x%x  DrawBuffer %p 0x%x\n",
-	  (void *) ctx->ReadBuffer->_ColorReadBuffer,
-	  ctx->ReadBuffer->ColorReadBuffer,
-	  (void *) ctx->DrawBuffer->_ColorDrawBuffers[0],
-	  ctx->DrawBuffer->ColorDrawBuffer[0]);
-   printf("Writing %d x %d color buffer to %s\n", w, h, filename);
-   write_ppm(filename, buf, w, h, 4, 0, 1, 2, GL_TRUE);
-
-   _mesa_PopClientAttrib();
-
-   free(buf);
-}
-
-
-void
-_mesa_dump_depth_buffer(const char *filename)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   const GLuint w = ctx->DrawBuffer->Width;
-   const GLuint h = ctx->DrawBuffer->Height;
-   GLuint *buf;
-   GLubyte *buf2;
-   GLuint i;
-
-   buf = (GLuint *) malloc(w * h * 4);  /* 4 bpp */
-   buf2 = (GLubyte *) malloc(w * h * 3); /* 3 bpp */
-
-   _mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
-   _mesa_PixelStorei(GL_PACK_ALIGNMENT, 1);
-   _mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE);
-
-   _mesa_ReadPixels(0, 0, w, h, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, buf);
-
-   /* spread 24 bits of Z across R, G, B */
-   for (i = 0; i < w * h; i++) {
-      buf2[i*3+0] = (buf[i] >> 24) & 0xff;
-      buf2[i*3+1] = (buf[i] >> 16) & 0xff;
-      buf2[i*3+2] = (buf[i] >>  8) & 0xff;
-   }
-
-   printf("Writing %d x %d depth buffer to %s\n", w, h, filename);
-   write_ppm(filename, buf2, w, h, 3, 0, 1, 2, GL_TRUE);
-
-   _mesa_PopClientAttrib();
-
-   free(buf);
-   free(buf2);
-}
-
-
-void
-_mesa_dump_stencil_buffer(const char *filename)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   const GLuint w = ctx->DrawBuffer->Width;
-   const GLuint h = ctx->DrawBuffer->Height;
-   GLubyte *buf;
-   GLubyte *buf2;
-   GLuint i;
-
-   buf = (GLubyte *) malloc(w * h);  /* 1 bpp */
-   buf2 = (GLubyte *) malloc(w * h * 3); /* 3 bpp */
-
-   _mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
-   _mesa_PixelStorei(GL_PACK_ALIGNMENT, 1);
-   _mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE);
-
-   _mesa_ReadPixels(0, 0, w, h, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, buf);
-
-   for (i = 0; i < w * h; i++) {
-      buf2[i*3+0] = buf[i];
-      buf2[i*3+1] = (buf[i] & 127) * 2;
-      buf2[i*3+2] = (buf[i] - 128) * 2;
-   }
-
-   printf("Writing %d x %d stencil buffer to %s\n", w, h, filename);
-   write_ppm(filename, buf2, w, h, 3, 0, 1, 2, GL_TRUE);
-
-   _mesa_PopClientAttrib();
-
-   free(buf);
-   free(buf2);
-}
-
-
-void
-_mesa_dump_image(const char *filename, const void *image, GLuint w, GLuint h,
-                 GLenum format, GLenum type)
-{
-   GLboolean invert = GL_TRUE;
-
-   if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) {
-      write_ppm(filename, image, w, h, 4, 0, 1, 2, invert);
-   }
-   else if (format == GL_BGRA && type == GL_UNSIGNED_BYTE) {
-      write_ppm(filename, image, w, h, 4, 2, 1, 0, invert);
-   }
-   else if (format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE) {
-      write_ppm(filename, image, w, h, 2, 1, 0, 0, invert);
-   }
-   else {
-      _mesa_problem(NULL, "Unsupported format/type in _mesa_dump_image()");
-   }
-}
-
-
-/**
- * Quick and dirty function to "print" a texture to stdout.
- */
-void
-_mesa_print_texture(struct gl_context *ctx, const struct gl_texture_image *img)
-{
-#if CHAN_TYPE != GL_UNSIGNED_BYTE
-   _mesa_problem(NULL, "PrintTexture not supported");
-#else
-   GLuint i, j, c;
-   const GLubyte *data = (const GLubyte *) img->Data;
-
-   if (!data) {
-      printf("No texture data\n");
-      return;
-   }
-
-   /* XXX add more formats or make into a new format utility function */
-   switch (img->TexFormat) {
-      case MESA_FORMAT_A8:
-      case MESA_FORMAT_L8:
-      case MESA_FORMAT_I8:
-      case MESA_FORMAT_CI8:
-         c = 1;
-         break;
-      case MESA_FORMAT_AL88:
-      case MESA_FORMAT_AL88_REV:
-         c = 2;
-         break;
-      case MESA_FORMAT_RGB888:
-      case MESA_FORMAT_BGR888:
-         c = 3;
-         break;
-      case MESA_FORMAT_RGBA8888:
-      case MESA_FORMAT_ARGB8888:
-         c = 4;
-         break;
-      default:
-         _mesa_problem(NULL, "error in PrintTexture\n");
-         return;
-   }
-
-   for (i = 0; i < img->Height; i++) {
-      for (j = 0; j < img->Width; j++) {
-         if (c==1)
-            printf("%02x  ", data[0]);
-         else if (c==2)
-            printf("%02x%02x  ", data[0], data[1]);
-         else if (c==3)
-            printf("%02x%02x%02x  ", data[0], data[1], data[2]);
-         else if (c==4)
-            printf("%02x%02x%02x%02x  ", data[0], data[1], data[2], data[3]);
-         data += (img->RowStride - img->Width) * c;
-      }
-      /* XXX use img->ImageStride here */
-      printf("\n");
-   }
-#endif
-}
+/*

+ * Mesa 3-D graphics library

+ * Version:  6.5

+ *

+ * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.

+ * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+#include "mtypes.h"

+#include "attrib.h"

+#include "colormac.h"

+#include "enums.h"

+#include "formats.h"

+#include "hash.h"

+#include "imports.h"

+#include "debug.h"

+#include "get.h"

+#include "pixelstore.h"

+#include "readpix.h"

+#include "texobj.h"

+

+

+static const char *

+tex_target_name(GLenum tgt)

+{

+   static const struct {

+      GLenum target;

+      const char *name;

+   } tex_targets[] = {

+      { GL_TEXTURE_1D, "GL_TEXTURE_1D" },

+      { GL_TEXTURE_2D, "GL_TEXTURE_2D" },

+      { GL_TEXTURE_3D, "GL_TEXTURE_3D" },

+      { GL_TEXTURE_CUBE_MAP, "GL_TEXTURE_CUBE_MAP" },

+      { GL_TEXTURE_RECTANGLE, "GL_TEXTURE_RECTANGLE" },

+      { GL_TEXTURE_1D_ARRAY_EXT, "GL_TEXTURE_1D_ARRAY" },

+      { GL_TEXTURE_2D_ARRAY_EXT, "GL_TEXTURE_2D_ARRAY" }

+   };

+   GLuint i;

+   for (i = 0; i < Elements(tex_targets); i++) {

+      if (tex_targets[i].target == tgt)

+         return tex_targets[i].name;

+   }

+   return "UNKNOWN TEX TARGET";

+}

+

+

+void

+_mesa_print_state( const char *msg, GLuint state )

+{

+   _mesa_debug(NULL,

+	   "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",

+	   msg,

+	   state,

+	   (state & _NEW_MODELVIEW)       ? "ctx->ModelView, " : "",

+	   (state & _NEW_PROJECTION)      ? "ctx->Projection, " : "",

+	   (state & _NEW_TEXTURE_MATRIX)  ? "ctx->TextureMatrix, " : "",

+	   (state & _NEW_COLOR)           ? "ctx->Color, " : "",

+	   (state & _NEW_DEPTH)           ? "ctx->Depth, " : "",

+	   (state & _NEW_EVAL)            ? "ctx->Eval/EvalMap, " : "",

+	   (state & _NEW_FOG)             ? "ctx->Fog, " : "",

+	   (state & _NEW_HINT)            ? "ctx->Hint, " : "",

+	   (state & _NEW_LIGHT)           ? "ctx->Light, " : "",

+	   (state & _NEW_LINE)            ? "ctx->Line, " : "",

+	   (state & _NEW_PIXEL)           ? "ctx->Pixel, " : "",

+	   (state & _NEW_POINT)           ? "ctx->Point, " : "",

+	   (state & _NEW_POLYGON)         ? "ctx->Polygon, " : "",

+	   (state & _NEW_POLYGONSTIPPLE)  ? "ctx->PolygonStipple, " : "",

+	   (state & _NEW_SCISSOR)         ? "ctx->Scissor, " : "",

+	   (state & _NEW_STENCIL)         ? "ctx->Stencil, " : "",

+	   (state & _NEW_TEXTURE)         ? "ctx->Texture, " : "",

+	   (state & _NEW_TRANSFORM)       ? "ctx->Transform, " : "",

+	   (state & _NEW_VIEWPORT)        ? "ctx->Viewport, " : "",

+	   (state & _NEW_PACKUNPACK)      ? "ctx->Pack/Unpack, " : "",

+	   (state & _NEW_ARRAY)           ? "ctx->Array, " : "",

+	   (state & _NEW_RENDERMODE)      ? "ctx->RenderMode, " : "",

+	   (state & _NEW_BUFFERS)         ? "ctx->Visual, ctx->DrawBuffer,, " : "");

+}

+

+

+

+void

+_mesa_print_tri_caps( const char *name, GLuint flags )

+{

+   _mesa_debug(NULL,

+	   "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s\n",

+	   name,

+	   flags,

+	   (flags & DD_FLATSHADE)           ? "flat-shade, " : "",

+	   (flags & DD_SEPARATE_SPECULAR)   ? "separate-specular, " : "",

+	   (flags & DD_TRI_LIGHT_TWOSIDE)   ? "tri-light-twoside, " : "",

+	   (flags & DD_TRI_TWOSTENCIL)      ? "tri-twostencil, " : "",

+	   (flags & DD_TRI_UNFILLED)        ? "tri-unfilled, " : "",

+	   (flags & DD_TRI_STIPPLE)         ? "tri-stipple, " : "",

+	   (flags & DD_TRI_OFFSET)          ? "tri-offset, " : "",

+	   (flags & DD_TRI_SMOOTH)          ? "tri-smooth, " : "",

+	   (flags & DD_LINE_SMOOTH)         ? "line-smooth, " : "",

+	   (flags & DD_LINE_STIPPLE)        ? "line-stipple, " : "",

+	   (flags & DD_POINT_SMOOTH)        ? "point-smooth, " : "",

+	   (flags & DD_POINT_ATTEN)         ? "point-atten, " : "",

+	   (flags & DD_TRI_CULL_FRONT_BACK) ? "cull-all, " : ""

+      );

+}

+

+

+/**

+ * Print information about this Mesa version and build options.

+ */

+void _mesa_print_info( void )

+{

+   _mesa_debug(NULL, "Mesa GL_VERSION = %s\n",

+	   (char *) _mesa_GetString(GL_VERSION));

+   _mesa_debug(NULL, "Mesa GL_RENDERER = %s\n",

+	   (char *) _mesa_GetString(GL_RENDERER));

+   _mesa_debug(NULL, "Mesa GL_VENDOR = %s\n",

+	   (char *) _mesa_GetString(GL_VENDOR));

+   _mesa_debug(NULL, "Mesa GL_EXTENSIONS = %s\n",

+	   (char *) _mesa_GetString(GL_EXTENSIONS));

+#if defined(THREADS)

+   _mesa_debug(NULL, "Mesa thread-safe: YES\n");

+#else

+   _mesa_debug(NULL, "Mesa thread-safe: NO\n");

+#endif

+#if defined(USE_X86_ASM)

+   _mesa_debug(NULL, "Mesa x86-optimized: YES\n");

+#else

+   _mesa_debug(NULL, "Mesa x86-optimized: NO\n");

+#endif

+#if defined(USE_SPARC_ASM)

+   _mesa_debug(NULL, "Mesa sparc-optimized: YES\n");

+#else

+   _mesa_debug(NULL, "Mesa sparc-optimized: NO\n");

+#endif

+}

+

+

+/**

+ * Set the debugging flags.

+ *

+ * \param debug debug string

+ *

+ * If compiled with debugging support then search for keywords in \p debug and

+ * enables the verbose debug output of the respective feature.

+ */

+static void add_debug_flags( const char *debug )

+{

+#ifdef DEBUG

+   struct debug_option {

+      const char *name;

+      GLbitfield flag;

+   };

+   static const struct debug_option debug_opt[] = {

+      { "varray",    VERBOSE_VARRAY },

+      { "tex",       VERBOSE_TEXTURE },

+      { "mat",       VERBOSE_MATERIAL },

+      { "pipe",      VERBOSE_PIPELINE },

+      { "driver",    VERBOSE_DRIVER },

+      { "state",     VERBOSE_STATE },

+      { "api",       VERBOSE_API },

+      { "list",      VERBOSE_DISPLAY_LIST },

+      { "lighting",  VERBOSE_LIGHTING },

+      { "disassem",  VERBOSE_DISASSEM },

+      { "draw",      VERBOSE_DRAW },

+      { "swap",      VERBOSE_SWAPBUFFERS }

+   };

+   GLuint i;

+

+   MESA_VERBOSE = 0x0;

+   for (i = 0; i < Elements(debug_opt); i++) {

+      if (strstr(debug, debug_opt[i].name) || strcmp(debug, "all") == 0)

+         MESA_VERBOSE |= debug_opt[i].flag;

+   }

+

+   /* Debug flag:

+    */

+   if (strstr(debug, "flush"))

+      MESA_DEBUG_FLAGS |= DEBUG_ALWAYS_FLUSH;

+

+#if defined(_FPU_GETCW) && defined(_FPU_SETCW)

+   if (strstr(debug, "fpexceptions")) {

+      /* raise FP exceptions */

+      fpu_control_t mask;

+      _FPU_GETCW(mask);

+      mask &= ~(_FPU_MASK_IM | _FPU_MASK_DM | _FPU_MASK_ZM

+                | _FPU_MASK_OM | _FPU_MASK_UM);

+      _FPU_SETCW(mask);

+   }

+#endif

+

+#else

+   (void) debug;

+#endif

+}

+

+

+void 

+_mesa_init_debug( struct gl_context *ctx )

+{

+   char *c;

+   c = _mesa_getenv("MESA_DEBUG");

+   if (c)

+      add_debug_flags(c);

+

+   c = _mesa_getenv("MESA_VERBOSE");

+   if (c)

+      add_debug_flags(c);

+}

+

+

+/*

+ * Write ppm file

+ */

+static void

+write_ppm(const char *filename, const GLubyte *buffer, int width, int height,

+          int comps, int rcomp, int gcomp, int bcomp, GLboolean invert)

+{

+   FILE *f = fopen( filename, "w" );

+   if (f) {

+      int x, y;

+      const GLubyte *ptr = buffer;

+      fprintf(f,"P6\n");

+      fprintf(f,"# ppm-file created by osdemo.c\n");

+      fprintf(f,"%i %i\n", width,height);

+      fprintf(f,"255\n");

+      fclose(f);

+      f = fopen( filename, "ab" );  /* reopen in binary append mode */

+      for (y=0; y < height; y++) {

+         for (x = 0; x < width; x++) {

+            int yy = invert ? (height - 1 - y) : y;

+            int i = (yy * width + x) * comps;

+            fputc(ptr[i+rcomp], f); /* write red */

+            fputc(ptr[i+gcomp], f); /* write green */

+            fputc(ptr[i+bcomp], f); /* write blue */

+         }

+      }

+      fclose(f);

+   }

+   else {

+      fprintf(stderr, "Unable to create %s in write_ppm()\n", filename);

+   }

+}

+

+

+/**

+ * Write a texture image to a ppm file.

+ * \param face  cube face in [0,5]

+ * \param level  mipmap level

+ */

+static void

+write_texture_image(struct gl_texture_object *texObj,

+                    GLuint face, GLuint level)

+{

+   struct gl_texture_image *img = texObj->Image[face][level];

+   if (img) {

+      GET_CURRENT_CONTEXT(ctx);

+      struct gl_pixelstore_attrib store;

+      GLubyte *buffer;

+      char s[100];

+

+      buffer = (GLubyte *) malloc(img->Width * img->Height

+                                        * img->Depth * 4);

+

+      store = ctx->Pack; /* save */

+      ctx->Pack = ctx->DefaultPacking;

+

+      ctx->Driver.GetTexImage(ctx, texObj->Target, level,

+                              GL_RGBA, GL_UNSIGNED_BYTE,

+                              buffer, texObj, img);

+

+      /* make filename */

+      _mesa_snprintf(s, sizeof(s), "/tmp/tex%u.l%u.f%u.ppm", texObj->Name, level, face);

+

+      printf("  Writing image level %u to %s\n", level, s);

+      write_ppm(s, buffer, img->Width, img->Height, 4, 0, 1, 2, GL_FALSE);

+

+      ctx->Pack = store; /* restore */

+

+      free(buffer);

+   }

+}

+

+

+/**

+ * Write renderbuffer image to a ppm file.

+ */

+void

+_mesa_write_renderbuffer_image(const struct gl_renderbuffer *rb)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   GLubyte *buffer;

+   char s[100];

+   GLenum format, type;

+

+   if (rb->_BaseFormat == GL_RGB || 

+       rb->_BaseFormat == GL_RGBA) {

+      format = GL_RGBA;

+      type = GL_UNSIGNED_BYTE;

+   }

+   else if (rb->_BaseFormat == GL_DEPTH_STENCIL) {

+      format = GL_DEPTH_STENCIL;

+      type = GL_UNSIGNED_INT_24_8;

+   }

+   else {

+      _mesa_debug(NULL,

+                  "Unsupported BaseFormat 0x%x in "

+                  "_mesa_write_renderbuffer_image()\n",

+                  rb->_BaseFormat);

+      return;

+   }

+

+   buffer = (GLubyte *) malloc(rb->Width * rb->Height * 4);

+

+   ctx->Driver.ReadPixels(ctx, 0, 0, rb->Width, rb->Height,

+                          format, type, &ctx->DefaultPacking, buffer);

+

+   /* make filename */

+   _mesa_snprintf(s, sizeof(s), "/tmp/renderbuffer%u.ppm", rb->Name);

+   _mesa_snprintf(s, sizeof(s), "C:\\renderbuffer%u.ppm", rb->Name);

+

+   printf("  Writing renderbuffer image to %s\n", s);

+

+   _mesa_debug(NULL, "  Writing renderbuffer image to %s\n", s);

+

+   write_ppm(s, buffer, rb->Width, rb->Height, 4, 0, 1, 2, GL_TRUE);

+

+   free(buffer);

+}

+

+

+/** How many texture images (mipmap levels, faces) to write to files */

+#define WRITE_NONE 0

+#define WRITE_ONE  1

+#define WRITE_ALL  2

+

+static GLuint WriteImages;

+

+

+static void

+dump_texture(struct gl_texture_object *texObj, GLuint writeImages)

+{

+   const GLuint numFaces = texObj->Target == GL_TEXTURE_CUBE_MAP ? 6 : 1;

+   GLboolean written = GL_FALSE;

+   GLuint i, j;

+

+   printf("Texture %u\n", texObj->Name);

+   printf("  Target %s\n", tex_target_name(texObj->Target));

+   for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {

+      for (j = 0; j < numFaces; j++) {

+         struct gl_texture_image *texImg = texObj->Image[j][i];

+         if (texImg) {

+            printf("  Face %u level %u: %d x %d x %d, format %s at %p\n",

+		   j, i,

+		   texImg->Width, texImg->Height, texImg->Depth,

+		   _mesa_get_format_name(texImg->TexFormat),

+		   texImg->Data);

+            if (writeImages == WRITE_ALL ||

+                (writeImages == WRITE_ONE && !written)) {

+               write_texture_image(texObj, j, i);

+               written = GL_TRUE;

+            }

+         }

+      }

+   }

+}

+

+

+/**

+ * Dump a single texture.

+ */

+void

+_mesa_dump_texture(GLuint texture, GLuint writeImages)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   struct gl_texture_object *texObj = _mesa_lookup_texture(ctx, texture);

+   if (texObj) {

+      dump_texture(texObj, writeImages);

+   }

+}

+

+

+static void

+dump_texture_cb(GLuint id, void *data, void *userData)

+{

+   struct gl_texture_object *texObj = (struct gl_texture_object *) data;

+   (void) userData;

+   dump_texture(texObj, WriteImages);

+}

+

+

+/**

+ * Print basic info about all texture objext to stdout.

+ * If dumpImages is true, write PPM of level[0] image to a file.

+ */

+void

+_mesa_dump_textures(GLuint writeImages)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   WriteImages = writeImages;

+   _mesa_HashWalk(ctx->Shared->TexObjects, dump_texture_cb, ctx);

+}

+

+

+static void

+dump_renderbuffer(const struct gl_renderbuffer *rb, GLboolean writeImage)

+{

+   printf("Renderbuffer %u: %u x %u  IntFormat = %s\n",

+	  rb->Name, rb->Width, rb->Height,

+	  _mesa_lookup_enum_by_nr(rb->InternalFormat));

+   if (writeImage) {

+      _mesa_write_renderbuffer_image(rb);

+   }

+}

+

+

+static void

+dump_renderbuffer_cb(GLuint id, void *data, void *userData)

+{

+   const struct gl_renderbuffer *rb = (const struct gl_renderbuffer *) data;

+   (void) userData;

+   dump_renderbuffer(rb, WriteImages);

+}

+

+

+/**

+ * Print basic info about all renderbuffers to stdout.

+ * If dumpImages is true, write PPM of level[0] image to a file.

+ */

+void

+_mesa_dump_renderbuffers(GLboolean writeImages)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   WriteImages = writeImages;

+   _mesa_HashWalk(ctx->Shared->RenderBuffers, dump_renderbuffer_cb, ctx);

+}

+

+

+

+void

+_mesa_dump_color_buffer(const char *filename)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   const GLuint w = ctx->DrawBuffer->Width;

+   const GLuint h = ctx->DrawBuffer->Height;

+   GLubyte *buf;

+

+   buf = (GLubyte *) malloc(w * h * 4);

+

+   _mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);

+   _mesa_PixelStorei(GL_PACK_ALIGNMENT, 1);

+   _mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE);

+

+   _mesa_ReadPixels(0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, buf);

+

+   printf("ReadBuffer %p 0x%x  DrawBuffer %p 0x%x\n",

+	  (void *) ctx->ReadBuffer->_ColorReadBuffer,

+	  ctx->ReadBuffer->ColorReadBuffer,

+	  (void *) ctx->DrawBuffer->_ColorDrawBuffers[0],

+	  ctx->DrawBuffer->ColorDrawBuffer[0]);

+   printf("Writing %d x %d color buffer to %s\n", w, h, filename);

+   write_ppm(filename, buf, w, h, 4, 0, 1, 2, GL_TRUE);

+

+   _mesa_PopClientAttrib();

+

+   free(buf);

+}

+

+

+void

+_mesa_dump_depth_buffer(const char *filename)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   const GLuint w = ctx->DrawBuffer->Width;

+   const GLuint h = ctx->DrawBuffer->Height;

+   GLuint *buf;

+   GLubyte *buf2;

+   GLuint i;

+

+   buf = (GLuint *) malloc(w * h * 4);  /* 4 bpp */

+   buf2 = (GLubyte *) malloc(w * h * 3); /* 3 bpp */

+

+   _mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);

+   _mesa_PixelStorei(GL_PACK_ALIGNMENT, 1);

+   _mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE);

+

+   _mesa_ReadPixels(0, 0, w, h, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, buf);

+

+   /* spread 24 bits of Z across R, G, B */

+   for (i = 0; i < w * h; i++) {

+      buf2[i*3+0] = (buf[i] >> 24) & 0xff;

+      buf2[i*3+1] = (buf[i] >> 16) & 0xff;

+      buf2[i*3+2] = (buf[i] >>  8) & 0xff;

+   }

+

+   printf("Writing %d x %d depth buffer to %s\n", w, h, filename);

+   write_ppm(filename, buf2, w, h, 3, 0, 1, 2, GL_TRUE);

+

+   _mesa_PopClientAttrib();

+

+   free(buf);

+   free(buf2);

+}

+

+

+void

+_mesa_dump_stencil_buffer(const char *filename)

+{

+   GET_CURRENT_CONTEXT(ctx);

+   const GLuint w = ctx->DrawBuffer->Width;

+   const GLuint h = ctx->DrawBuffer->Height;

+   GLubyte *buf;

+   GLubyte *buf2;

+   GLuint i;

+

+   buf = (GLubyte *) malloc(w * h);  /* 1 bpp */

+   buf2 = (GLubyte *) malloc(w * h * 3); /* 3 bpp */

+

+   _mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);

+   _mesa_PixelStorei(GL_PACK_ALIGNMENT, 1);

+   _mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE);

+

+   _mesa_ReadPixels(0, 0, w, h, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, buf);

+

+   for (i = 0; i < w * h; i++) {

+      buf2[i*3+0] = buf[i];

+      buf2[i*3+1] = (buf[i] & 127) * 2;

+      buf2[i*3+2] = (buf[i] - 128) * 2;

+   }

+

+   printf("Writing %d x %d stencil buffer to %s\n", w, h, filename);

+   write_ppm(filename, buf2, w, h, 3, 0, 1, 2, GL_TRUE);

+

+   _mesa_PopClientAttrib();

+

+   free(buf);

+   free(buf2);

+}

+

+

+void

+_mesa_dump_image(const char *filename, const void *image, GLuint w, GLuint h,

+                 GLenum format, GLenum type)

+{

+   GLboolean invert = GL_TRUE;

+

+   if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) {

+      write_ppm(filename, image, w, h, 4, 0, 1, 2, invert);

+   }

+   else if (format == GL_BGRA && type == GL_UNSIGNED_BYTE) {

+      write_ppm(filename, image, w, h, 4, 2, 1, 0, invert);

+   }

+   else if (format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE) {

+      write_ppm(filename, image, w, h, 2, 1, 0, 0, invert);

+   }

+   else {

+      _mesa_problem(NULL, "Unsupported format/type in _mesa_dump_image()");

+   }

+}

+

+

+/**

+ * Quick and dirty function to "print" a texture to stdout.

+ */

+void

+_mesa_print_texture(struct gl_context *ctx, const struct gl_texture_image *img)

+{

+#if CHAN_TYPE != GL_UNSIGNED_BYTE

+   _mesa_problem(NULL, "PrintTexture not supported");

+#else

+   GLuint i, j, c;

+   const GLubyte *data = (const GLubyte *) img->Data;

+

+   if (!data) {

+      printf("No texture data\n");

+      return;

+   }

+

+   /* XXX add more formats or make into a new format utility function */

+   switch (img->TexFormat) {

+      case MESA_FORMAT_A8:

+      case MESA_FORMAT_L8:

+      case MESA_FORMAT_I8:

+      case MESA_FORMAT_CI8:

+         c = 1;

+         break;

+      case MESA_FORMAT_AL88:

+      case MESA_FORMAT_AL88_REV:

+         c = 2;

+         break;

+      case MESA_FORMAT_RGB888:

+      case MESA_FORMAT_BGR888:

+         c = 3;

+         break;

+      case MESA_FORMAT_RGBA8888:

+      case MESA_FORMAT_ARGB8888:

+         c = 4;

+         break;

+      default:

+         _mesa_problem(NULL, "error in PrintTexture\n");

+         return;

+   }

+

+   for (i = 0; i < img->Height; i++) {

+      for (j = 0; j < img->Width; j++) {

+         if (c==1)

+            printf("%02x  ", data[0]);

+         else if (c==2)

+            printf("%02x%02x  ", data[0], data[1]);

+         else if (c==3)

+            printf("%02x%02x%02x  ", data[0], data[1], data[2]);

+         else if (c==4)

+            printf("%02x%02x%02x%02x  ", data[0], data[1], data[2], data[3]);

+         data += (img->RowStride - img->Width) * c;

+      }

+      /* XXX use img->ImageStride here */

+      printf("\n");

+   }

+#endif

+}