Added MesaLib-7.6

1 files changed, 286 insertions, 0 deletions

diff --git a/mesalib/src/mesa/main/pixelstore.c b/mesalib/src/mesa/main/pixelstore.c
new file mode 100644
index 000000000..6a641f83f
--- /dev/null
+++ b/mesalib/src/mesa/main/pixelstore.c
@@ -0,0 +1,286 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2008  Brian Paul   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.
+ */
+
+/**
+ * \file pixelstore.c
+ * glPixelStore functions.
+ */
+
+
+#include "glheader.h"
+#include "bufferobj.h"
+#include "colormac.h"
+#include "context.h"
+#include "image.h"
+#include "macros.h"
+#include "pixelstore.h"
+#include "mtypes.h"
+
+
+void GLAPIENTRY
+_mesa_PixelStorei( GLenum pname, GLint param )
+{
+   /* NOTE: this call can't be compiled into the display list */
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   switch (pname) {
+      case GL_PACK_SWAP_BYTES:
+	 if (param == (GLint)ctx->Pack.SwapBytes)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+         ctx->Pack.SwapBytes = param ? GL_TRUE : GL_FALSE;
+	 break;
+      case GL_PACK_LSB_FIRST:
+	 if (param == (GLint)ctx->Pack.LsbFirst)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+         ctx->Pack.LsbFirst = param ? GL_TRUE : GL_FALSE;
+	 break;
+      case GL_PACK_ROW_LENGTH:
+	 if (param<0) {
+	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Pack.RowLength == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Pack.RowLength = param;
+	 break;
+      case GL_PACK_IMAGE_HEIGHT:
+         if (param<0) {
+            _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Pack.ImageHeight == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Pack.ImageHeight = param;
+         break;
+      case GL_PACK_SKIP_PIXELS:
+	 if (param<0) {
+	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Pack.SkipPixels == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Pack.SkipPixels = param;
+	 break;
+      case GL_PACK_SKIP_ROWS:
+	 if (param<0) {
+	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Pack.SkipRows == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Pack.SkipRows = param;
+	 break;
+      case GL_PACK_SKIP_IMAGES:
+	 if (param<0) {
+	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Pack.SkipImages == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Pack.SkipImages = param;
+	 break;
+      case GL_PACK_ALIGNMENT:
+         if (param!=1 && param!=2 && param!=4 && param!=8) {
+	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Pack.Alignment == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Pack.Alignment = param;
+	 break;
+      case GL_PACK_INVERT_MESA:
+         if (!ctx->Extensions.MESA_pack_invert) {
+            _mesa_error( ctx, GL_INVALID_ENUM, "glPixelstore(pname)" );
+            return;
+         }
+         if (ctx->Pack.Invert == param)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+         ctx->Pack.Invert = param;
+         break;
+
+      case GL_UNPACK_SWAP_BYTES:
+	 if (param == (GLint)ctx->Unpack.SwapBytes)
+	    return;
+	 if ((GLint)ctx->Unpack.SwapBytes == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Unpack.SwapBytes = param ? GL_TRUE : GL_FALSE;
+         break;
+      case GL_UNPACK_LSB_FIRST:
+	 if (param == (GLint)ctx->Unpack.LsbFirst)
+	    return;
+	 if ((GLint)ctx->Unpack.LsbFirst == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Unpack.LsbFirst = param ? GL_TRUE : GL_FALSE;
+	 break;
+      case GL_UNPACK_ROW_LENGTH:
+	 if (param<0) {
+	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Unpack.RowLength == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Unpack.RowLength = param;
+	 break;
+      case GL_UNPACK_IMAGE_HEIGHT:
+         if (param<0) {
+            _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Unpack.ImageHeight == param)
+	    return;
+
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Unpack.ImageHeight = param;
+         break;
+      case GL_UNPACK_SKIP_PIXELS:
+	 if (param<0) {
+	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Unpack.SkipPixels == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Unpack.SkipPixels = param;
+	 break;
+      case GL_UNPACK_SKIP_ROWS:
+	 if (param<0) {
+	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Unpack.SkipRows == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Unpack.SkipRows = param;
+	 break;
+      case GL_UNPACK_SKIP_IMAGES:
+	 if (param < 0) {
+	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
+	    return;
+	 }
+	 if (ctx->Unpack.SkipImages == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Unpack.SkipImages = param;
+	 break;
+      case GL_UNPACK_ALIGNMENT:
+         if (param!=1 && param!=2 && param!=4 && param!=8) {
+	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore" );
+	    return;
+	 }
+	 if (ctx->Unpack.Alignment == param)
+	    return;
+	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+	 ctx->Unpack.Alignment = param;
+	 break;
+      case GL_UNPACK_CLIENT_STORAGE_APPLE:
+         if (param == (GLint)ctx->Unpack.ClientStorage)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
+         ctx->Unpack.ClientStorage = param ? GL_TRUE : GL_FALSE;
+         break;
+      default:
+	 _mesa_error( ctx, GL_INVALID_ENUM, "glPixelStore" );
+	 return;
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_PixelStoref( GLenum pname, GLfloat param )
+{
+   _mesa_PixelStorei( pname, (GLint) param );
+}
+
+
+
+/**
+ * Initialize the context's pixel store state.
+ */
+void
+_mesa_init_pixelstore( GLcontext *ctx )
+{
+   /* Pixel transfer */
+   ctx->Pack.Alignment = 4;
+   ctx->Pack.RowLength = 0;
+   ctx->Pack.ImageHeight = 0;
+   ctx->Pack.SkipPixels = 0;
+   ctx->Pack.SkipRows = 0;
+   ctx->Pack.SkipImages = 0;
+   ctx->Pack.SwapBytes = GL_FALSE;
+   ctx->Pack.LsbFirst = GL_FALSE;
+   ctx->Pack.ClientStorage = GL_FALSE;
+   ctx->Pack.Invert = GL_FALSE;
+#if FEATURE_EXT_pixel_buffer_object
+   _mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj,
+                                 ctx->Shared->NullBufferObj);
+#endif
+   ctx->Unpack.Alignment = 4;
+   ctx->Unpack.RowLength = 0;
+   ctx->Unpack.ImageHeight = 0;
+   ctx->Unpack.SkipPixels = 0;
+   ctx->Unpack.SkipRows = 0;
+   ctx->Unpack.SkipImages = 0;
+   ctx->Unpack.SwapBytes = GL_FALSE;
+   ctx->Unpack.LsbFirst = GL_FALSE;
+   ctx->Unpack.ClientStorage = GL_FALSE;
+   ctx->Unpack.Invert = GL_FALSE;
+#if FEATURE_EXT_pixel_buffer_object
+   _mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj,
+                                 ctx->Shared->NullBufferObj);
+#endif
+
+   /*
+    * _mesa_unpack_image() returns image data in this format.  When we
+    * execute image commands (glDrawPixels(), glTexImage(), etc) from
+    * within display lists we have to be sure to set the current
+    * unpacking parameters to these values!
+    */
+   ctx->DefaultPacking.Alignment = 1;
+   ctx->DefaultPacking.RowLength = 0;
+   ctx->DefaultPacking.SkipPixels = 0;
+   ctx->DefaultPacking.SkipRows = 0;
+   ctx->DefaultPacking.ImageHeight = 0;
+   ctx->DefaultPacking.SkipImages = 0;
+   ctx->DefaultPacking.SwapBytes = GL_FALSE;
+   ctx->DefaultPacking.LsbFirst = GL_FALSE;
+   ctx->DefaultPacking.ClientStorage = GL_FALSE;
+   ctx->DefaultPacking.Invert = GL_FALSE;
+#if FEATURE_EXT_pixel_buffer_object
+   _mesa_reference_buffer_object(ctx, &ctx->DefaultPacking.BufferObj,
+                                 ctx->Shared->NullBufferObj);
+#endif
+}