From eaa70945cb3f1a432b8c505ecede9ebc7769f36d Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Mon, 13 Feb 2012 08:47:19 +0100
Subject: libX11 libxcb mesa xserver mkfontscale git update 13 feb 2012

---
 mesalib/src/mesa/main/texgetimage.c | 60 +++++--------------------------------
 1 file changed, 8 insertions(+), 52 deletions(-)

(limited to 'mesalib/src/mesa/main/texgetimage.c')

diff --git a/mesalib/src/mesa/main/texgetimage.c b/mesalib/src/mesa/main/texgetimage.c
index bff003d24..a02a49156 100644
--- a/mesalib/src/mesa/main/texgetimage.c
+++ b/mesalib/src/mesa/main/texgetimage.c
@@ -246,23 +246,12 @@ get_tex_rgba_compressed(struct gl_context *ctx, GLuint dimensions,
    {
       GLubyte *srcMap;
       GLint srcRowStride;
-      GLuint bytes, bw, bh;
-
-      bytes = _mesa_get_format_bytes(texFormat);
-      _mesa_get_format_block_size(texFormat, &bw, &bh);
 
       ctx->Driver.MapTextureImage(ctx, texImage, 0,
                                   0, 0, width, height,
                                   GL_MAP_READ_BIT,
                                   &srcMap, &srcRowStride);
       if (srcMap) {
-         /* XXX This line is a bit of a hack to work around the
-          * mismatch of compressed row strides as returned by
-          * MapTextureImage() vs. what the texture decompression code
-          * uses.  This will be fixed in the future.
-          */
-         srcRowStride = srcRowStride * bh / bytes;
-
          _mesa_decompress_image(texFormat, width, height,
                                 srcMap, srcRowStride, tempImage);
 
@@ -270,6 +259,8 @@ get_tex_rgba_compressed(struct gl_context *ctx, GLuint dimensions,
       }
       else {
          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+         free(tempImage);
+         return;
       }
    }
 
@@ -496,52 +487,17 @@ get_tex_memcpy(struct gl_context *ctx, GLenum format, GLenum type,
    GLboolean memCopy = GL_FALSE;
 
    /*
-    * Check if the src/dst formats are compatible.
-    * Also note that GL's pixel transfer ops don't apply to glGetTexImage()
-    * so we don't have to worry about those.
-    * XXX more format combinations could be supported here.
+    * Check if we can use memcpy to copy from the hardware texture
+    * format to the user's format/type.
+    * Note that GL's pixel transfer ops don't apply to glGetTexImage()
     */
    if (target == GL_TEXTURE_1D ||
        target == GL_TEXTURE_2D ||
        target == GL_TEXTURE_RECTANGLE ||
        _mesa_is_cube_face(target)) {
-      if ((texImage->TexFormat == MESA_FORMAT_ARGB8888 ||
-             texImage->TexFormat == MESA_FORMAT_SARGB8) &&
-          format == GL_BGRA &&
-          (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) &&
-          !ctx->Pack.SwapBytes &&
-          _mesa_little_endian()) {
-         memCopy = GL_TRUE;
-      }
-      else if ((texImage->TexFormat == MESA_FORMAT_AL88 ||
-                  texImage->TexFormat == MESA_FORMAT_SLA8) &&
-               format == GL_LUMINANCE_ALPHA &&
-               type == GL_UNSIGNED_BYTE &&
-               !ctx->Pack.SwapBytes &&
-               _mesa_little_endian()) {
-         memCopy = GL_TRUE;
-      }
-      else if ((texImage->TexFormat == MESA_FORMAT_L8 ||
-                  texImage->TexFormat == MESA_FORMAT_SL8) &&
-               format == GL_LUMINANCE &&
-               type == GL_UNSIGNED_BYTE) {
-         memCopy = GL_TRUE;
-      }
-      else if (texImage->TexFormat == MESA_FORMAT_L16 &&
-               format == GL_LUMINANCE &&
-               type == GL_UNSIGNED_SHORT) {
-         memCopy = GL_TRUE;
-      }
-      else if (texImage->TexFormat == MESA_FORMAT_A8 &&
-               format == GL_ALPHA &&
-               type == GL_UNSIGNED_BYTE) {
-         memCopy = GL_TRUE;
-      }
-      else if (texImage->TexFormat == MESA_FORMAT_A16 &&
-               format == GL_ALPHA &&
-               type == GL_UNSIGNED_SHORT) {
-         memCopy = GL_TRUE;
-      }
+      memCopy = _mesa_format_matches_format_and_type(texImage->TexFormat,
+                                                     format, type,
+                                                     ctx->Pack.SwapBytes);
    }
 
    if (memCopy) {
-- 
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