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-rw-r--r--src/glx/x11/glx_texture_compression.c347
1 files changed, 347 insertions, 0 deletions
diff --git a/src/glx/x11/glx_texture_compression.c b/src/glx/x11/glx_texture_compression.c
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+++ b/src/glx/x11/glx_texture_compression.c
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+/*
+ * (C) Copyright IBM Corporation 2004
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS AND/OR THEIR 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.
+ */
+
+/**
+ * \file glx_texture_compression.c
+ * Contains the routines required to implement GLX protocol for
+ * ARB_texture_compression and related extensions.
+ *
+ * \sa http://oss.sgi.com/projects/ogl-sample/registry/ARB/texture_compression.txt
+ *
+ * \author Ian Romanick <idr@us.ibm.com>
+ */
+
+#include "packrender.h"
+#include "packsingle.h"
+#include "indirect.h"
+
+#include <assert.h>
+
+
+void
+__indirect_glGetCompressedTexImageARB( GLenum target, GLint level,
+ GLvoid * img )
+{
+ __GLX_SINGLE_DECLARE_VARIABLES();
+ xGLXGetTexImageReply reply;
+ size_t image_bytes;
+
+ __GLX_SINGLE_LOAD_VARIABLES();
+ __GLX_SINGLE_BEGIN( X_GLsop_GetCompressedTexImage, 8 );
+ __GLX_SINGLE_PUT_LONG( 0, target );
+ __GLX_SINGLE_PUT_LONG( 4, level );
+ __GLX_SINGLE_READ_XREPLY();
+
+ image_bytes = reply.width;
+ assert( image_bytes <= ((4 * reply.length) - 0) );
+ assert( image_bytes >= ((4 * reply.length) - 3) );
+
+ if ( image_bytes != 0 ) {
+ _XRead( dpy, (char *) img, image_bytes );
+ if ( image_bytes < (4 * reply.length) ) {
+ _XEatData( dpy, (4 * reply.length) - image_bytes );
+ }
+ }
+
+ __GLX_SINGLE_END();
+}
+
+
+/**
+ * Internal function used for \c glCompressedTexImage1D and
+ * \c glCompressedTexImage2D.
+ */
+static void
+CompressedTexImage1D2D( GLenum target, GLint level,
+ GLenum internal_format,
+ GLsizei width, GLsizei height,
+ GLint border, GLsizei image_size,
+ const GLvoid *data, CARD32 rop )
+{
+ __GLX_DECLARE_VARIABLES();
+
+ __GLX_LOAD_VARIABLES();
+ if ( gc->currentDpy == NULL ) {
+ return;
+ }
+
+ if ( (target == GL_PROXY_TEXTURE_1D)
+ || (target == GL_PROXY_TEXTURE_2D)
+ || (target == GL_PROXY_TEXTURE_CUBE_MAP) ) {
+ compsize = 0;
+ }
+ else {
+ compsize = image_size;
+ }
+
+ cmdlen = __GLX_PAD( __GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE
+ + compsize );
+ if ( cmdlen <= gc->maxSmallRenderCommandSize ) {
+ __GLX_BEGIN_VARIABLE( rop, cmdlen );
+ __GLX_PUT_LONG( 4, target );
+ __GLX_PUT_LONG( 8, level );
+ __GLX_PUT_LONG( 12, internal_format );
+ __GLX_PUT_LONG( 16, width );
+ __GLX_PUT_LONG( 20, height );
+ __GLX_PUT_LONG( 24, border );
+ __GLX_PUT_LONG( 28, image_size );
+ if ( compsize != 0 ) {
+ __GLX_PUT_CHAR_ARRAY( __GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE,
+ data, image_size );
+ }
+ __GLX_END( cmdlen );
+ }
+ else {
+ assert( compsize != 0 );
+
+ __GLX_BEGIN_VARIABLE_LARGE( rop, cmdlen + 4 );
+ __GLX_PUT_LONG( 8, target );
+ __GLX_PUT_LONG( 12, level );
+ __GLX_PUT_LONG( 16, internal_format );
+ __GLX_PUT_LONG( 20, width );
+ __GLX_PUT_LONG( 24, height );
+ __GLX_PUT_LONG( 28, border );
+ __GLX_PUT_LONG( 32, image_size );
+ __glXSendLargeCommand( gc, gc->pc,
+ __GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE + 4,
+ data, image_size );
+ }
+}
+
+
+/**
+ * Internal function used for \c glCompressedTexSubImage1D and
+ * \c glCompressedTexSubImage2D.
+ */
+static void
+CompressedTexSubImage1D2D( GLenum target, GLint level,
+ GLsizei xoffset, GLsizei yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format, GLsizei image_size,
+ const GLvoid *data, CARD32 rop )
+{
+ __GLX_DECLARE_VARIABLES();
+
+ __GLX_LOAD_VARIABLES();
+ if ( gc->currentDpy == NULL ) {
+ return;
+ }
+
+ if ( target == GL_PROXY_TEXTURE_3D ) {
+ compsize = 0;
+ }
+ else {
+ compsize = image_size;
+ }
+
+ cmdlen = __GLX_PAD( __GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE
+ + compsize );
+ if ( cmdlen <= gc->maxSmallRenderCommandSize ) {
+ __GLX_BEGIN_VARIABLE( rop, cmdlen );
+ __GLX_PUT_LONG( 4, target );
+ __GLX_PUT_LONG( 8, level );
+ __GLX_PUT_LONG( 12, xoffset );
+ __GLX_PUT_LONG( 16, yoffset );
+ __GLX_PUT_LONG( 20, width );
+ __GLX_PUT_LONG( 24, height );
+ __GLX_PUT_LONG( 28, format );
+ __GLX_PUT_LONG( 32, image_size );
+ if ( compsize != 0 ) {
+ __GLX_PUT_CHAR_ARRAY( __GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE,
+ data, image_size );
+ }
+ __GLX_END( cmdlen );
+ }
+ else {
+ assert( compsize != 0 );
+
+ __GLX_BEGIN_VARIABLE_LARGE( rop, cmdlen + 4 );
+ __GLX_PUT_LONG( 8, target );
+ __GLX_PUT_LONG( 12, level );
+ __GLX_PUT_LONG( 16, xoffset );
+ __GLX_PUT_LONG( 20, yoffset );
+ __GLX_PUT_LONG( 24, width );
+ __GLX_PUT_LONG( 28, height );
+ __GLX_PUT_LONG( 32, format );
+ __GLX_PUT_LONG( 36, image_size );
+ __glXSendLargeCommand( gc, gc->pc,
+ __GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE + 4,
+ data, image_size );
+ }
+}
+
+
+void
+__indirect_glCompressedTexImage1DARB( GLenum target, GLint level,
+ GLenum internal_format, GLsizei width,
+ GLint border, GLsizei image_size,
+ const GLvoid *data )
+{
+ CompressedTexImage1D2D( target, level, internal_format, width, 0,
+ border, image_size, data,
+ X_GLrop_CompressedTexImage1D );
+}
+
+
+void
+__indirect_glCompressedTexImage2DARB( GLenum target, GLint level,
+ GLenum internal_format,
+ GLsizei width, GLsizei height,
+ GLint border, GLsizei image_size,
+ const GLvoid *data )
+{
+ CompressedTexImage1D2D( target, level, internal_format, width, height,
+ border, image_size, data,
+ X_GLrop_CompressedTexImage2D );
+}
+
+
+void
+__indirect_glCompressedTexImage3DARB( GLenum target, GLint level,
+ GLenum internal_format,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLsizei image_size,
+ const GLvoid *data )
+{
+ __GLX_DECLARE_VARIABLES();
+
+ __GLX_LOAD_VARIABLES();
+ if ( gc->currentDpy == NULL ) {
+ return;
+ }
+
+ cmdlen = __GLX_PAD( __GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE
+ + image_size );
+ if ( cmdlen <= gc->maxSmallRenderCommandSize ) {
+ __GLX_BEGIN_VARIABLE( X_GLrop_CompressedTexImage3D, cmdlen );
+ __GLX_PUT_LONG( 4, target );
+ __GLX_PUT_LONG( 8, level );
+ __GLX_PUT_LONG( 12, internal_format );
+ __GLX_PUT_LONG( 16, width );
+ __GLX_PUT_LONG( 20, height );
+ __GLX_PUT_LONG( 24, depth );
+ __GLX_PUT_LONG( 28, border );
+ __GLX_PUT_LONG( 32, image_size );
+ if ( image_size != 0 ) {
+ __GLX_PUT_CHAR_ARRAY( __GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE,
+ data, image_size );
+ }
+ __GLX_END( cmdlen );
+ }
+ else {
+ __GLX_BEGIN_VARIABLE_LARGE( X_GLrop_CompressedTexImage3D,
+ cmdlen + 4 );
+ __GLX_PUT_LONG( 8, target );
+ __GLX_PUT_LONG( 12, level );
+ __GLX_PUT_LONG( 16, internal_format );
+ __GLX_PUT_LONG( 20, width );
+ __GLX_PUT_LONG( 24, height );
+ __GLX_PUT_LONG( 28, depth );
+ __GLX_PUT_LONG( 32, border );
+ __GLX_PUT_LONG( 36, image_size );
+ __glXSendLargeCommand( gc, gc->pc,
+ __GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE + 4,
+ data, image_size );
+ }
+}
+
+
+void
+__indirect_glCompressedTexSubImage1DARB( GLenum target, GLint level,
+ GLint xoffset,
+ GLsizei width,
+ GLenum format, GLsizei image_size,
+ const GLvoid *data )
+{
+ CompressedTexSubImage1D2D( target, level, xoffset, 0, width, 0,
+ format, image_size, data,
+ X_GLrop_CompressedTexSubImage1D );
+}
+
+
+void
+__indirect_glCompressedTexSubImage2DARB( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format, GLsizei image_size,
+ const GLvoid *data )
+{
+ CompressedTexSubImage1D2D( target, level, xoffset, yoffset, width, height,
+ format, image_size, data,
+ X_GLrop_CompressedTexSubImage2D );
+}
+
+
+void
+__indirect_glCompressedTexSubImage3DARB( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLsizei image_size,
+ const GLvoid *data )
+{
+ __GLX_DECLARE_VARIABLES();
+
+ __GLX_LOAD_VARIABLES();
+ if ( gc->currentDpy == NULL ) {
+ return;
+ }
+
+ cmdlen = __GLX_PAD( __GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE
+ + image_size );
+ if ( cmdlen <= gc->maxSmallRenderCommandSize ) {
+ __GLX_BEGIN_VARIABLE( X_GLrop_CompressedTexSubImage3D, cmdlen );
+ __GLX_PUT_LONG( 4, target );
+ __GLX_PUT_LONG( 8, level );
+ __GLX_PUT_LONG( 12, xoffset );
+ __GLX_PUT_LONG( 16, yoffset );
+ __GLX_PUT_LONG( 20, zoffset );
+ __GLX_PUT_LONG( 24, width );
+ __GLX_PUT_LONG( 28, height );
+ __GLX_PUT_LONG( 32, depth );
+ __GLX_PUT_LONG( 36, format );
+ __GLX_PUT_LONG( 40, image_size );
+ if ( image_size != 0 ) {
+ __GLX_PUT_CHAR_ARRAY( __GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE,
+ data, image_size );
+ }
+ __GLX_END( cmdlen );
+ }
+ else {
+ __GLX_BEGIN_VARIABLE_LARGE( X_GLrop_CompressedTexSubImage3D,
+ cmdlen + 4 );
+ __GLX_PUT_LONG( 8, target );
+ __GLX_PUT_LONG( 12, level );
+ __GLX_PUT_LONG( 16, xoffset );
+ __GLX_PUT_LONG( 20, yoffset );
+ __GLX_PUT_LONG( 24, zoffset );
+ __GLX_PUT_LONG( 28, width );
+ __GLX_PUT_LONG( 32, height );
+ __GLX_PUT_LONG( 36, depth );
+ __GLX_PUT_LONG( 40, format );
+ __GLX_PUT_LONG( 44, image_size );
+ __glXSendLargeCommand( gc, gc->pc,
+ __GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE + 4,
+ data, image_size );
+ }
+}