Move GL/glx on level up now that it's the only thing left under GL.

1 files changed, 423 insertions, 0 deletions

diff --git a/glx/rensize.c b/glx/rensize.c
new file mode 100644
index 000000000..c69619a61
--- /dev/null
+++ b/glx/rensize.c
@@ -0,0 +1,423 @@
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 1.1 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+** 
+** http://oss.sgi.com/projects/FreeB
+** 
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+** 
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+** 
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+**
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <GL/gl.h>
+#include "glxserver.h"
+#include "GL/glxproto.h"
+#include "unpack.h"
+#include "indirect_size.h"
+#include "indirect_reqsize.h"
+
+#define SWAPL(a) \
+  (((a & 0xff000000U)>>24) | ((a & 0xff0000U)>>8) | \
+   ((a & 0xff00U)<<8) | ((a & 0xffU)<<24))
+
+static int Map1Size( GLint k, GLint order)
+{
+    if (order <= 0 || k < 0) return -1;
+    return k * order;
+}
+
+int __glXMap1dReqSize( const GLbyte *pc, Bool swap )
+{
+    GLenum target;
+    GLint order, k;
+
+    target = *(GLenum*) (pc + 16);
+    order = *(GLint*) (pc + 20);
+    if (swap) {
+	target = SWAPL( target );
+	order = SWAPL( order );
+    }
+    k = __glMap1d_size( target );
+    return 8 * Map1Size( k, order );
+}
+
+int __glXMap1fReqSize( const GLbyte *pc, Bool swap )
+{
+    GLenum target;
+    GLint order, k;
+
+    target = *(GLenum *)(pc + 0);
+    order = *(GLint *)(pc + 12);
+    if (swap) {
+	target = SWAPL( target );
+	order = SWAPL( order );
+    }
+    k = __glMap1f_size(target);
+    return 4 * Map1Size(k, order);
+}
+
+static int Map2Size(int k, int majorOrder, int minorOrder)
+{
+    if (majorOrder <= 0 || minorOrder <= 0 || k < 0) return -1;
+    return k * majorOrder * minorOrder;
+}
+
+int __glXMap2dReqSize( const GLbyte *pc, Bool swap )
+{
+    GLenum target;
+    GLint uorder, vorder, k;
+
+    target = *(GLenum *)(pc + 32);
+    uorder = *(GLint *)(pc + 36);
+    vorder = *(GLint *)(pc + 40);
+    if (swap) {
+	target = SWAPL( target );
+	uorder = SWAPL( uorder );
+	vorder = SWAPL( vorder );
+    }
+    k = __glMap2d_size( target );
+    return 8 * Map2Size( k, uorder, vorder );
+}
+
+int __glXMap2fReqSize( const GLbyte *pc, Bool swap )
+{
+    GLenum target;
+    GLint uorder, vorder, k;
+
+    target = *(GLenum *)(pc + 0);
+    uorder = *(GLint *)(pc + 12);
+    vorder = *(GLint *)(pc + 24);
+    if (swap) {
+	target = SWAPL( target );
+	uorder = SWAPL( uorder );
+	vorder = SWAPL( vorder );
+    }
+    k = __glMap2f_size( target );
+    return 4 * Map2Size( k, uorder, vorder );
+}
+
+/**
+ * Calculate the size of an image.
+ * 
+ * The size of an image sent to the server from the client or sent from the
+ * server to the client is calculated.  The size is based on the dimensions
+ * of the image, the type of pixel data, padding in the image, and the
+ * alignment requirements of the image.
+ * 
+ * \param format       Format of the pixels.  Same as the \c format parameter
+ *                     to \c glTexImage1D
+ * \param type         Type of the pixel data.  Same as the \c type parameter
+ *                     to \c glTexImage1D
+ * \param target       Typically the texture target of the image.  If the
+ *                     target is one of \c GL_PROXY_*, the size returned is
+ *                     always zero. For uses that do not have a texture target
+ *                     (e.g, glDrawPixels), zero should be specified.
+ * \param w            Width of the image data.  Must be >= 1.
+ * \param h            Height of the image data.  Must be >= 1, even for 1D
+ *                     images.
+ * \param d            Depth of the image data.  Must be >= 1, even for 1D or
+ *                     2D images.
+ * \param imageHeight  If non-zero, defines the true height of a volumetric
+ *                     image.  This value will be used instead of \c h for
+ *                     calculating the size of the image.
+ * \param rowLength    If non-zero, defines the true width of an image.  This
+ *                     value will be used instead of \c w for calculating the
+ *                     size of the image.
+ * \param skipImages   Number of extra layers of image data in a volumtric
+ *                     image that are to be skipped before the real data.
+ * \param skipRows     Number of extra rows of image data in an image that are
+ *                     to be skipped before the real data.
+ * \param alignment    Specifies the alignment for the start of each pixel row
+ *                     in memory.  This value must be one of 1, 2, 4, or 8.
+ *
+ * \returns
+ * The size of the image is returned.  If the specified \c format and \c type
+ * are invalid, -1 is returned.  If \c target is one of \c GL_PROXY_*, zero
+ * is returned.
+ */
+int __glXImageSize( GLenum format, GLenum type, GLenum target,
+		    GLsizei w, GLsizei h, GLsizei d,
+		    GLint imageHeight, GLint rowLength,
+		    GLint skipImages, GLint skipRows, GLint alignment )
+{
+    GLint bytesPerElement, elementsPerGroup, groupsPerRow;
+    GLint groupSize, rowSize, padding, imageSize;
+
+    if (w < 0 || h < 0 || d < 0 ||
+	(type == GL_BITMAP &&
+	 (format != GL_COLOR_INDEX && format != GL_STENCIL_INDEX))) {
+	return -1;
+    }
+    if (w==0 || h==0 || d == 0) return 0;
+
+    switch( target ) {
+    case GL_PROXY_TEXTURE_1D:
+    case GL_PROXY_TEXTURE_2D:
+    case GL_PROXY_TEXTURE_3D:
+    case GL_PROXY_TEXTURE_4D_SGIS:
+    case GL_PROXY_TEXTURE_CUBE_MAP:
+    case GL_PROXY_TEXTURE_RECTANGLE_ARB:
+    case GL_PROXY_HISTOGRAM:
+    case GL_PROXY_COLOR_TABLE:
+    case GL_PROXY_TEXTURE_COLOR_TABLE_SGI:
+    case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE:
+    case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE:
+    case GL_PROXY_POST_IMAGE_TRANSFORM_COLOR_TABLE_HP:
+	return 0;
+    }
+
+    if (type == GL_BITMAP) {
+	if (rowLength > 0) {
+	    groupsPerRow = rowLength;
+	} else {
+	    groupsPerRow = w;
+	}
+	rowSize = (groupsPerRow + 7) >> 3;
+	padding = (rowSize % alignment);
+	if (padding) {
+	    rowSize += alignment - padding;
+	}
+	return ((h + skipRows) * rowSize);
+    } else {
+	switch(format) {
+	  case GL_COLOR_INDEX:
+	  case GL_STENCIL_INDEX:
+	  case GL_DEPTH_COMPONENT:
+	  case GL_RED:
+	  case GL_GREEN:
+	  case GL_BLUE:
+	  case GL_ALPHA:
+	  case GL_LUMINANCE:
+	  case GL_INTENSITY:
+	    elementsPerGroup = 1;
+	    break;
+	  case GL_422_EXT:
+	  case GL_422_REV_EXT:
+	  case GL_422_AVERAGE_EXT:
+	  case GL_422_REV_AVERAGE_EXT:
+	  case GL_DEPTH_STENCIL_NV:
+	  case GL_DEPTH_STENCIL_MESA:
+	  case GL_YCBCR_MESA:
+	  case GL_LUMINANCE_ALPHA:
+	    elementsPerGroup = 2;
+	    break;
+	  case GL_RGB:
+	  case GL_BGR:
+	    elementsPerGroup = 3;
+	    break;
+	  case GL_RGBA:
+	  case GL_BGRA:
+	  case GL_ABGR_EXT:
+	    elementsPerGroup = 4;
+	    break;
+	  default:
+	    return -1;
+	}
+	switch(type) {
+	  case GL_UNSIGNED_BYTE:
+	  case GL_BYTE:
+	    bytesPerElement = 1;
+	    break;
+	  case GL_UNSIGNED_BYTE_3_3_2:
+	  case GL_UNSIGNED_BYTE_2_3_3_REV:
+	    bytesPerElement = 1;	    
+	    elementsPerGroup = 1;
+	    break;
+	  case GL_UNSIGNED_SHORT:
+	  case GL_SHORT:
+	    bytesPerElement = 2;
+	    break;
+	  case GL_UNSIGNED_SHORT_5_6_5:
+	  case GL_UNSIGNED_SHORT_5_6_5_REV:
+	  case GL_UNSIGNED_SHORT_4_4_4_4:
+ 	  case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+	  case GL_UNSIGNED_SHORT_5_5_5_1:
+	  case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+	  case GL_UNSIGNED_SHORT_8_8_APPLE:
+	  case GL_UNSIGNED_SHORT_8_8_REV_APPLE:
+	  case GL_UNSIGNED_SHORT_15_1_MESA:
+	  case GL_UNSIGNED_SHORT_1_15_REV_MESA:
+	    bytesPerElement = 2;
+	    elementsPerGroup = 1;
+	    break;
+	  case GL_INT:
+	  case GL_UNSIGNED_INT:
+	  case GL_FLOAT:
+	    bytesPerElement = 4;
+	    break;
+	  case GL_UNSIGNED_INT_8_8_8_8:
+	  case GL_UNSIGNED_INT_8_8_8_8_REV:
+	  case GL_UNSIGNED_INT_10_10_10_2:
+	  case GL_UNSIGNED_INT_2_10_10_10_REV:
+	  case GL_UNSIGNED_INT_24_8_NV:
+	  case GL_UNSIGNED_INT_24_8_MESA:
+	  case GL_UNSIGNED_INT_8_24_REV_MESA:
+	    bytesPerElement = 4;
+	    elementsPerGroup = 1;
+	    break;
+	  default:
+	    return -1;
+	}
+	groupSize = bytesPerElement * elementsPerGroup;
+	if (rowLength > 0) {
+	    groupsPerRow = rowLength;
+	} else {
+	    groupsPerRow = w;
+	}
+	rowSize = groupsPerRow * groupSize;
+	padding = (rowSize % alignment);
+	if (padding) {
+	    rowSize += alignment - padding;
+	}
+	if (imageHeight > 0) {
+	    imageSize = (imageHeight + skipRows) * rowSize;
+	} else {
+	    imageSize = (h + skipRows) * rowSize;
+	}
+	return ((d + skipImages) * imageSize);
+    }
+}
+
+
+/* XXX this is used elsewhere - should it be exported from glxserver.h? */
+int __glXTypeSize(GLenum enm)
+{
+  switch(enm) {
+    case GL_BYTE:		return sizeof(GLbyte);
+    case GL_UNSIGNED_BYTE:	return sizeof(GLubyte);
+    case GL_SHORT:		return sizeof(GLshort);
+    case GL_UNSIGNED_SHORT:	return sizeof(GLushort);
+    case GL_INT:		return sizeof(GLint);
+    case GL_UNSIGNED_INT:	return sizeof(GLint);
+    case GL_FLOAT:		return sizeof(GLfloat);
+    case GL_DOUBLE:		return sizeof(GLdouble);
+    default:			return -1;
+  }
+}
+
+int __glXDrawArraysReqSize( const GLbyte *pc, Bool swap )
+{
+    __GLXdispatchDrawArraysHeader *hdr = (__GLXdispatchDrawArraysHeader *) pc;
+    __GLXdispatchDrawArraysComponentHeader *compHeader;
+    GLint numVertexes = hdr->numVertexes;
+    GLint numComponents = hdr->numComponents;
+    GLint arrayElementSize = 0;
+    int i;
+
+    if (swap) {
+	numVertexes = SWAPL( numVertexes );
+	numComponents = SWAPL( numComponents );
+    }
+
+    pc += sizeof(__GLXdispatchDrawArraysHeader);
+    compHeader = (__GLXdispatchDrawArraysComponentHeader *) pc;
+
+    for (i=0; i<numComponents; i++) {
+	GLenum datatype = compHeader[i].datatype;
+	GLint numVals = compHeader[i].numVals;
+	GLint component = compHeader[i].component;
+
+	if (swap) {
+	    datatype = SWAPL( datatype );
+	    numVals = SWAPL( numVals );
+	    component = SWAPL( component );
+	}
+
+	switch (component) {
+	  case GL_VERTEX_ARRAY:
+	  case GL_COLOR_ARRAY:
+	  case GL_TEXTURE_COORD_ARRAY:
+	    break;
+	  case GL_SECONDARY_COLOR_ARRAY:
+	  case GL_NORMAL_ARRAY:
+	    if (numVals != 3) {
+		/* bad size */
+		return -1;
+	    }
+	    break;
+	  case GL_FOG_COORD_ARRAY:
+	  case GL_INDEX_ARRAY:
+	    if (numVals != 1) {
+		/* bad size */
+		return -1;
+	    }
+	    break;
+	  case GL_EDGE_FLAG_ARRAY:
+	    if ((numVals != 1) && (datatype != GL_UNSIGNED_BYTE)) {
+		/* bad size or bad type */
+		return -1;
+	    }
+	    break;
+	  default:
+	    /* unknown component type */
+	    return -1;
+	}
+
+	arrayElementSize += __GLX_PAD(numVals * __glXTypeSize(datatype));
+
+	pc += sizeof(__GLXdispatchDrawArraysComponentHeader);
+    }
+
+    return ((numComponents * sizeof(__GLXdispatchDrawArraysComponentHeader)) +
+	    (numVertexes * arrayElementSize));
+}
+
+int __glXSeparableFilter2DReqSize( const GLbyte *pc, Bool swap )
+{
+    __GLXdispatchConvolutionFilterHeader *hdr =
+			(__GLXdispatchConvolutionFilterHeader *) pc;
+
+    GLint image1size, image2size;
+    GLenum format = hdr->format;
+    GLenum type = hdr->type;
+    GLint w = hdr->width;
+    GLint h = hdr->height;
+    GLint rowLength = hdr->rowLength;
+    GLint alignment = hdr->alignment;
+
+    if (swap) {
+	format = SWAPL( format );
+	type = SWAPL( type );
+	w = SWAPL( w );
+	h = SWAPL( h );
+	rowLength = SWAPL( rowLength );
+	alignment = SWAPL( alignment );
+    }
+
+    /* XXX Should rowLength be used for either or both image? */
+    image1size = __glXImageSize( format, type, 0, w, 1, 1,
+				 0, rowLength, 0, 0, alignment );
+    image1size = __GLX_PAD(image1size);
+    image2size = __glXImageSize( format, type, 0, h, 1, 1,
+				 0, rowLength, 0, 0, alignment );
+    return image1size + image2size;
+
+}