1 files changed, 95 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_tex_getimage.c b/src/mesa/drivers/dri/radeon/radeon_tex_getimage.c
new file mode 100644
index 0000000000..7bf6dcc2e3
--- /dev/null
+++ b/src/mesa/drivers/dri/radeon/radeon_tex_getimage.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2009 Maciej Cencora.
+ * Copyright (C) 2008 Nicolai Haehnle.
+ * Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
+ *
+ * The Weather Channel (TM) funded Tungsten Graphics to develop the
+ * initial release of the Radeon 8500 driver under the XFree86 license.
+ * This notice must be preserved.
+ *
+ * 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 (including the
+ * next paragraph) 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 THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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 "radeon_common_context.h"
+#include "radeon_texture.h"
+#include "radeon_mipmap_tree.h"
+
+#include "main/texgetimage.h"
+
+/**
+ * Need to map texture image into memory before copying image data,
+ * then unmap it.
+ */
+static void
+radeon_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
+             GLenum format, GLenum type, GLvoid * pixels,
+             struct gl_texture_object *texObj,
+             struct gl_texture_image *texImage, int compressed)
+{
+    radeon_texture_image *image = get_radeon_texture_image(texImage);
+
+    radeon_print(RADEON_TEXTURE, RADEON_NORMAL,
+                 "%s(%p, tex %p, image %p) compressed %d.\n",
+                 __func__, ctx, texObj, image, compressed);
+
+    if (image->mt) {
+        /* Map the texture image read-only */
+        radeon_teximage_map(image, GL_FALSE);
+    } else {
+        /* Image hasn't been uploaded to a miptree yet */
+        assert(image->base.Data);
+    }
+
+    if (compressed) {
+        /* FIXME: this can't work for small textures (mips) which
+                 use different hw stride */
+        _mesa_get_compressed_teximage(ctx, target, level, pixels,
+                          texObj, texImage);
+    } else {
+        _mesa_get_teximage(ctx, target, level, format, type, pixels,
+                   texObj, texImage);
+    }
+
+    if (image->mt) {
+        radeon_teximage_unmap(image);
+    }
+}
+
+void
+radeonGetTexImage(GLcontext * ctx, GLenum target, GLint level,
+          GLenum format, GLenum type, GLvoid * pixels,
+          struct gl_texture_object *texObj,
+          struct gl_texture_image *texImage)
+{
+    radeon_get_tex_image(ctx, target, level, format, type, pixels,
+                 texObj, texImage, 0);
+}
+
+void
+radeonGetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level,
+                GLvoid *pixels,
+                struct gl_texture_object *texObj,
+                struct gl_texture_image *texImage)
+{
+    radeon_get_tex_image(ctx, target, level, 0, 0, pixels,
+                 texObj, texImage, 1);
+}