--- /dev/null
+/* $Id: ac_context.c,v 1.1 2000/12/26 15:14:04 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.5
+ *
+ * Copyright (C) 1999 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.
+ *
+ * Author:
+ * Keith Whitwell <keithw@valinux.com>
+ */
+
+#include "glheader.h"
+#include "macros.h"
+#include "mem.h"
+#include "mmath.h"
+#include "mtypes.h"
+
+#include "array_cache/ac_context.h"
+
+static void _ac_fallbacks_init( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ struct gl_client_array *cl;
+ GLuint i;
+
+ cl = &ac->Fallback.Normal;
+ cl->Size = 3;
+ cl->Type = GL_FLOAT;
+ cl->Stride = 0;
+ cl->StrideB = 0;
+ cl->Ptr = (void *) ctx->Current.Normal;
+ cl->Enabled = 1;
+
+ cl = &ac->Fallback.Color;
+ cl->Size = 4;
+ cl->Type = GL_UNSIGNED_BYTE;
+ cl->Stride = 0;
+ cl->StrideB = 0;
+ cl->Ptr = (void *) ctx->Current.Color;
+ cl->Enabled = 1;
+
+ cl = &ac->Fallback.SecondaryColor;
+ cl->Size = 3;
+ cl->Type = GL_UNSIGNED_BYTE;
+ cl->Stride = 0;
+ cl->StrideB = 0;
+ cl->Ptr = (void *) ctx->Current.SecondaryColor;
+ cl->Enabled = 1;
+
+ cl = &ac->Fallback.FogCoord;
+ cl->Size = 1;
+ cl->Type = GL_FLOAT;
+ cl->Stride = 0;
+ cl->StrideB = 0;
+ cl->Ptr = (void *) &ctx->Current.FogCoord;
+ cl->Enabled = 1;
+
+ cl = &ac->Fallback.Index;
+ cl->Size = 1;
+ cl->Type = GL_UNSIGNED_INT;
+ cl->Stride = 0;
+ cl->StrideB = 0;
+ cl->Ptr = (void *) &ctx->Current.Index;
+ cl->Enabled = 1;
+
+ for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) {
+ cl = &ac->Fallback.TexCoord[i];
+ cl->Size = 4;
+ cl->Type = GL_FLOAT;
+ cl->Stride = 0;
+ cl->StrideB = 0;
+ cl->Ptr = (void *) ctx->Current.Texcoord[i];
+ cl->Enabled = 1;
+ }
+
+ cl = &ac->Fallback.EdgeFlag;
+ cl->Size = 1;
+ cl->Type = GL_UNSIGNED_BYTE;
+ cl->Stride = 0;
+ cl->StrideB = 0;
+ cl->Ptr = (void *) &ctx->Current.EdgeFlag;
+ cl->Enabled = 1;
+}
+
+
+static void _ac_cache_init( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ struct gl_client_array *cl;
+ GLuint size = ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES;
+ GLuint i;
+
+ cl = &ac->Cache.Vertex;
+ cl->Size = 4;
+ cl->Type = GL_FLOAT;
+ cl->Stride = 0;
+ cl->StrideB = 4 * sizeof(GLfloat);
+ cl->Ptr = MALLOC( cl->StrideB * size );
+ cl->Enabled = 1;
+
+ cl = &ac->Cache.Normal;
+ cl->Size = 3;
+ cl->Type = GL_FLOAT;
+ cl->Stride = 0;
+ cl->StrideB = 3 * sizeof(GLfloat);
+ cl->Ptr = MALLOC( cl->StrideB * size );
+ cl->Enabled = 1;
+
+ cl = &ac->Cache.Color;
+ cl->Size = 4;
+ cl->Type = GL_UNSIGNED_BYTE;
+ cl->Stride = 0;
+ cl->StrideB = 4 * sizeof(GLubyte);
+ cl->Ptr = MALLOC( cl->StrideB * size );
+ cl->Enabled = 1;
+
+ cl = &ac->Cache.SecondaryColor;
+ cl->Size = 3;
+ cl->Type = GL_UNSIGNED_BYTE;
+ cl->Stride = 0;
+ cl->StrideB = 4 * sizeof(GLubyte);
+ cl->Ptr = MALLOC( cl->StrideB * size );
+ cl->Enabled = 1;
+
+ cl = &ac->Cache.FogCoord;
+ cl->Size = 1;
+ cl->Type = GL_FLOAT;
+ cl->Stride = 0;
+ cl->StrideB = sizeof(GLfloat);
+ cl->Ptr = MALLOC( cl->StrideB * size );
+ cl->Enabled = 1;
+
+ cl = &ac->Cache.Index;
+ cl->Size = 1;
+ cl->Type = GL_UNSIGNED_INT;
+ cl->Stride = 0;
+ cl->StrideB = sizeof(GLuint);
+ cl->Ptr = MALLOC( cl->StrideB * size );
+ cl->Enabled = 1;
+
+ for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) {
+ cl = &ac->Cache.TexCoord[i];
+ cl->Size = 4;
+ cl->Type = GL_FLOAT;
+ cl->Stride = 0;
+ cl->StrideB = 4 * sizeof(GLfloat);
+ cl->Ptr = MALLOC( cl->StrideB * size );
+ cl->Enabled = 1;
+ }
+
+ cl = &ac->Cache.EdgeFlag;
+ cl->Size = 1;
+ cl->Type = GL_UNSIGNED_BYTE;
+ cl->Stride = 0;
+ cl->StrideB = sizeof(GLubyte);
+ cl->Ptr = MALLOC( cl->StrideB * size );
+ cl->Enabled = 1;
+}
+
+
+/* This storage used to hold translated client data if type or stride
+ * need to be fixed.
+ */
+static void _ac_elts_init( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ GLuint size = 1000;
+
+ ac->Elts = (GLuint *)MALLOC( sizeof(GLuint) * size );
+ ac->elt_size = size;
+}
+
+static void _ac_current_init( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ GLuint i;
+
+ ac->Current.Color = &ac->Fallback.Color;
+ ac->Current.EdgeFlag = &ac->Fallback.EdgeFlag;
+ ac->Current.FogCoord = &ac->Fallback.FogCoord;
+ ac->Current.Index = &ac->Fallback.Index;
+ ac->Current.Normal = &ac->Fallback.Normal;
+ ac->Current.SecondaryColor = &ac->Fallback.SecondaryColor;
+ ac->Current.Vertex = &ctx->Array.Vertex;
+
+ ac->Writeable.Color = GL_FALSE;
+ ac->Writeable.EdgeFlag = GL_FALSE;
+ ac->Writeable.FogCoord = GL_FALSE;
+ ac->Writeable.Index = GL_FALSE;
+ ac->Writeable.Normal = GL_FALSE;
+ ac->Writeable.SecondaryColor = GL_FALSE;
+ ac->Writeable.Vertex = GL_FALSE;
+
+ for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) {
+ ac->Current.TexCoord[i] = &ac->Fallback.TexCoord[i];
+ ac->Writeable.TexCoord[i] = GL_FALSE;
+ }
+
+}
+
+GLboolean _ac_CreateContext( GLcontext *ctx )
+{
+ ctx->acache_context = CALLOC(sizeof(ACcontext));
+ if (ctx->acache_context) {
+ _ac_cache_init( ctx );
+ _ac_fallbacks_init( ctx );
+ _ac_current_init( ctx );
+ _ac_elts_init( ctx );
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+}
+
+void _ac_DestroyContext( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ GLint i;
+
+ if (ac->Cache.Vertex.Ptr) FREE( ac->Cache.Vertex.Ptr );
+ if (ac->Cache.Normal.Ptr) FREE( ac->Cache.Normal.Ptr );
+ if (ac->Cache.Color.Ptr) FREE( ac->Cache.Color.Ptr );
+ if (ac->Cache.SecondaryColor.Ptr) FREE( ac->Cache.SecondaryColor.Ptr );
+ if (ac->Cache.EdgeFlag.Ptr) FREE( ac->Cache.EdgeFlag.Ptr );
+ if (ac->Cache.Index.Ptr) FREE( ac->Cache.Index.Ptr );
+ if (ac->Cache.FogCoord.Ptr) FREE( ac->Cache.FogCoord.Ptr );
+
+ for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
+ if (ac->Cache.TexCoord[i].Ptr)
+ FREE( ac->Cache.TexCoord[i].Ptr );
+ }
+
+ if (ac->Elts) FREE( ac->Elts );
+}
+
+void _ac_InvalidateState( GLcontext *ctx, GLuint new_state )
+{
+ AC_CONTEXT(ctx)->NewState |= new_state;
+ AC_CONTEXT(ctx)->NewArrayState |= ctx->Array.NewState;
+}
--- /dev/null
+/* $Id: ac_import.c,v 1.1 2000/12/26 15:14:04 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.5
+ *
+ * Copyright (C) 1999 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.
+ *
+ * Author:
+ * Keith Whitwell <keithw@valinux.com>
+ */
+
+#include "glheader.h"
+#include "macros.h"
+#include "mem.h"
+#include "mmath.h"
+#include "mtypes.h"
+
+#include "array_cache/ac_context.h"
+
+
+
+/* Set the array pointer back to its source when the cached data is
+ * invalidated:
+ */
+
+static void reset_texcoord( GLcontext *ctx, GLuint unit )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ if (ctx->Array._Enabled & _NEW_ARRAY_TEXCOORD(unit))
+ ac->Current.TexCoord[unit] = &ctx->Array.TexCoord[unit];
+ else {
+ ac->Current.TexCoord[unit] = &ac->Fallback.TexCoord[unit];
+
+ if (ctx->Current.Texcoord[unit][4] != 1.0)
+ ac->Current.TexCoord[unit]->Size = 4;
+ else if (ctx->Current.Texcoord[unit][3] != 0.0)
+ ac->Current.TexCoord[unit]->Size = 3;
+ else
+ ac->Current.TexCoord[unit]->Size = 2;
+ }
+
+ ac->Writeable.TexCoord[unit] = GL_FALSE;
+ ac->NewArrayState &= ~_NEW_ARRAY_TEXCOORD(unit);
+}
+
+static void reset_vertex( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ ASSERT(ctx->Array.Vertex.Enabled);
+ ac->Current.Vertex = &ctx->Array.Vertex;
+ ac->Writeable.Vertex = GL_FALSE;
+ ac->NewArrayState &= ~_NEW_ARRAY_VERTEX;
+}
+
+
+static void reset_normal( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ if (ctx->Array._Enabled & _NEW_ARRAY_NORMAL) {
+/* fprintf(stderr, "reset normal: using client array enab %d\n", */
+/* ctx->Array.Normal.Enabled); */
+ ac->Current.Normal = &ctx->Array.Normal;
+ }
+ else {
+/* fprintf(stderr, "reset normal: using fallback enab %d\n", */
+/* ctx->Array.Normal.Enabled); */
+ ac->Current.Normal = &ac->Fallback.Normal;
+ }
+
+ ac->Writeable.Normal = GL_FALSE;
+ ac->NewArrayState &= ~_NEW_ARRAY_NORMAL;
+}
+
+
+static void reset_color( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+
+ if (ctx->Array._Enabled & _NEW_ARRAY_COLOR)
+ ac->Current.Color = &ctx->Array.Color;
+ else
+ ac->Current.Color = &ac->Fallback.Color;
+
+/* fprintf(stderr, "reset_color, stride now %d\n", ac->Current.Color->StrideB); */
+
+ ac->Writeable.Color = GL_FALSE;
+ ac->NewArrayState &= ~_NEW_ARRAY_COLOR;
+}
+
+
+static void reset_secondarycolor( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ if (ctx->Array._Enabled & _NEW_ARRAY_SECONDARYCOLOR)
+ ac->Current.SecondaryColor = &ctx->Array.SecondaryColor;
+ else
+ ac->Current.SecondaryColor = &ac->Fallback.SecondaryColor;
+
+ ac->Writeable.SecondaryColor = GL_FALSE;
+ ac->NewArrayState &= ~_NEW_ARRAY_SECONDARYCOLOR;
+}
+
+
+static void reset_index( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ if (ctx->Array._Enabled & _NEW_ARRAY_INDEX)
+ ac->Current.Index = &ctx->Array.Index;
+ else
+ ac->Current.Index = &ac->Fallback.Index;
+
+ ac->Writeable.Index = GL_FALSE;
+ ac->NewArrayState &= ~_NEW_ARRAY_INDEX;
+}
+
+static void reset_fogcoord( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ if (ctx->Array._Enabled & _NEW_ARRAY_FOGCOORD)
+ ac->Current.FogCoord = &ctx->Array.FogCoord;
+ else
+ ac->Current.FogCoord = &ac->Fallback.FogCoord;
+
+ ac->Writeable.FogCoord = GL_FALSE;
+ ac->NewArrayState &= ~_NEW_ARRAY_FOGCOORD;
+}
+
+static void reset_edgeflag( GLcontext *ctx )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ if (ctx->Array._Enabled & _NEW_ARRAY_EDGEFLAG)
+ ac->Current.EdgeFlag = &ctx->Array.EdgeFlag;
+ else
+ ac->Current.EdgeFlag = &ac->Fallback.EdgeFlag;
+
+ ac->Writeable.EdgeFlag = GL_FALSE;
+ ac->NewArrayState &= ~_NEW_ARRAY_EDGEFLAG;
+}
+
+
+/* Functions to import array ranges with specified types and strides.
+ */
+static void import_texcoord( GLcontext *ctx, GLuint unit,
+ GLenum type, GLuint stride )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ struct gl_client_array *from = ac->Current.TexCoord[unit];
+ struct gl_client_array *to = &ac->Cache.TexCoord[unit];
+
+ /* Limited choices at this stage:
+ */
+ ASSERT(type == GL_FLOAT);
+ ASSERT(stride == 4*sizeof(GLfloat) || stride == 0);
+ ASSERT(ac->count - ac->start < ctx->Const.MaxArrayLockSize);
+
+ _math_trans_4f( to->Ptr,
+ from->Ptr,
+ from->StrideB,
+ from->Type,
+ from->Size,
+ ac->start,
+ ac->count);
+
+ to->Size = from->Size;
+ to->StrideB = 4 * sizeof(GLfloat);
+ to->Type = GL_FLOAT;
+ ac->Current.TexCoord[unit] = to;
+ ac->Writeable.TexCoord[unit] = GL_TRUE;
+}
+
+static void import_vertex( GLcontext *ctx,
+ GLenum type, GLuint stride )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ struct gl_client_array *from = ac->Current.Vertex;
+ struct gl_client_array *to = &ac->Cache.Vertex;
+
+ /* Limited choices at this stage:
+ */
+ ASSERT(type == GL_FLOAT);
+ ASSERT(stride == 4*sizeof(GLfloat) || stride == 0);
+
+ _math_trans_4f( to->Ptr,
+ from->Ptr,
+ from->StrideB,
+ from->Type,
+ from->Size,
+ ac->start,
+ ac->count);
+
+ to->Size = from->Size;
+ to->StrideB = 4 * sizeof(GLfloat);
+ to->Type = GL_FLOAT;
+ ac->Current.Vertex = to;
+ ac->Writeable.Vertex = GL_TRUE;
+}
+
+static void import_normal( GLcontext *ctx,
+ GLenum type, GLuint stride )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ struct gl_client_array *from = ac->Current.Normal;
+ struct gl_client_array *to = &ac->Cache.Normal;
+
+
+/* fprintf(stderr, "ac: import_normal\n"); */
+
+ /* Limited choices at this stage:
+ */
+ ASSERT(type == GL_FLOAT);
+ ASSERT(stride == 3*sizeof(GLfloat) || stride == 0);
+
+ _math_trans_3f( to->Ptr,
+ from->Ptr,
+ from->StrideB,
+ from->Type,
+ ac->start,
+ ac->count);
+
+ to->StrideB = 3 * sizeof(GLfloat);
+ to->Type = GL_FLOAT;
+ ac->Current.Normal = to;
+ ac->Writeable.Normal = GL_TRUE;
+}
+
+static void import_color( GLcontext *ctx,
+ GLenum type, GLuint stride )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ struct gl_client_array *from = ac->Current.Color;
+ struct gl_client_array *to = &ac->Cache.Color;
+
+/* fprintf(stderr, "(ac) %s\n", __FUNCTION__); */
+
+ /* Limited choices at this stage:
+ */
+ ASSERT(type == GL_UNSIGNED_BYTE);
+ ASSERT(stride == 4*sizeof(GLubyte) || stride == 0);
+
+ _math_trans_4ub( to->Ptr,
+ from->Ptr,
+ from->StrideB,
+ from->Type,
+ from->Size,
+ ac->start,
+ ac->count);
+
+ to->Size = from->Size;
+ to->StrideB = 4 * sizeof(GLubyte);
+ to->Type = GL_FLOAT;
+ ac->Current.Color = to;
+ ac->Writeable.Color = GL_TRUE;
+}
+
+static void import_index( GLcontext *ctx,
+ GLenum type, GLuint stride )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ struct gl_client_array *from = ac->Current.Index;
+ struct gl_client_array *to = &ac->Cache.Index;
+
+ /* Limited choices at this stage:
+ */
+ ASSERT(type == GL_UNSIGNED_INT);
+ ASSERT(stride == sizeof(GLuint) || stride == 0);
+
+ _math_trans_1ui( to->Ptr,
+ from->Ptr,
+ from->StrideB,
+ from->Type,
+ ac->start,
+ ac->count);
+
+ to->StrideB = sizeof(GLuint);
+ to->Type = GL_UNSIGNED_INT;
+ ac->Current.Index = to;
+ ac->Writeable.Index = GL_TRUE;
+}
+
+static void import_secondarycolor( GLcontext *ctx,
+ GLenum type, GLuint stride )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ struct gl_client_array *from = ac->Current.SecondaryColor;
+ struct gl_client_array *to = &ac->Cache.SecondaryColor;
+
+ /* Limited choices at this stage:
+ */
+ ASSERT(type == GL_UNSIGNED_BYTE);
+ ASSERT(stride == 4*sizeof(GLubyte) || stride == 0);
+
+ _math_trans_4ub( to->Ptr,
+ from->Ptr,
+ from->StrideB,
+ from->Type,
+ from->Size,
+ ac->start,
+ ac->count);
+
+ to->StrideB = 4 * sizeof(GLubyte);
+ to->Type = GL_UNSIGNED_BYTE;
+ ac->Current.SecondaryColor = to;
+ ac->Writeable.SecondaryColor = GL_TRUE;
+}
+
+static void import_fogcoord( GLcontext *ctx,
+ GLenum type, GLuint stride )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ struct gl_client_array *from = ac->Current.FogCoord;
+ struct gl_client_array *to = &ac->Cache.FogCoord;
+
+ /* Limited choices at this stage:
+ */
+ ASSERT(type == GL_FLOAT);
+ ASSERT(stride == sizeof(GLfloat) || stride == 0);
+
+ _math_trans_1f( to->Ptr,
+ from->Ptr,
+ from->StrideB,
+ from->Type,
+ ac->start,
+ ac->count);
+
+ to->StrideB = sizeof(GLfloat);
+ to->Type = GL_FLOAT;
+ ac->Current.FogCoord = to;
+ ac->Writeable.FogCoord = GL_TRUE;
+}
+
+static void import_edgeflag( GLcontext *ctx,
+ GLenum type, GLuint stride )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+ struct gl_client_array *from = ac->Current.EdgeFlag;
+ struct gl_client_array *to = &ac->Cache.EdgeFlag;
+
+ /* Limited choices at this stage:
+ */
+ ASSERT(type == GL_FLOAT);
+ ASSERT(stride == sizeof(GLfloat) || stride == 0);
+
+ _math_trans_1f( to->Ptr,
+ from->Ptr,
+ from->StrideB,
+ from->Type,
+ ac->start,
+ ac->count);
+
+ to->StrideB = sizeof(GLfloat);
+ to->Type = GL_FLOAT;
+ ac->Current.EdgeFlag = to;
+ ac->Writeable.EdgeFlag = GL_TRUE;
+}
+
+
+
+/* Externals to request arrays with specific properties:
+ */
+struct gl_client_array *_ac_import_texcoord( GLcontext *ctx,
+ GLuint unit,
+ GLenum type,
+ GLuint reqstride,
+ GLuint reqsize,
+ GLboolean reqwriteable,
+ GLboolean *writeable )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ /* Can we keep the existing version?
+ */
+ if (ac->NewArrayState & _NEW_ARRAY_TEXCOORD(unit))
+ reset_texcoord( ctx, unit );
+
+ /* Is the request impossible?
+ */
+ if (reqsize != 0 && ac->Current.TexCoord[unit]->Size > reqsize)
+ return 0;
+
+ /* Do we need to pull in a copy of the client data:
+ */
+ if (ac->Current.TexCoord[unit]->Type != type ||
+ (reqstride != 0 && ac->Current.TexCoord[unit]->StrideB != reqstride) ||
+ (reqwriteable && !ac->Writeable.TexCoord[unit]))
+ import_texcoord(ctx, unit, type, reqstride );
+
+ *writeable = ac->Writeable.TexCoord[unit];
+ return ac->Current.TexCoord[unit];
+}
+
+struct gl_client_array *_ac_import_vertex( GLcontext *ctx,
+ GLenum type,
+ GLuint reqstride,
+ GLuint reqsize,
+ GLboolean reqwriteable,
+ GLboolean *writeable )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ /* Can we keep the existing version?
+ */
+ if (ac->NewArrayState & _NEW_ARRAY_VERTEX)
+ reset_vertex( ctx );
+
+ /* Is the request impossible?
+ */
+ if (reqsize != 0 && ac->Current.Vertex->Size > reqsize)
+ return 0;
+
+ /* Do we need to pull in a copy of the client data:
+ */
+ if (ac->Current.Vertex->Type != type ||
+ (reqstride != 0 && ac->Current.Vertex->StrideB != reqstride) ||
+ (reqwriteable && !ac->Writeable.Vertex))
+ import_vertex(ctx, type, reqstride );
+
+ *writeable = ac->Writeable.Vertex;
+ return ac->Current.Vertex;
+}
+
+struct gl_client_array *_ac_import_normal( GLcontext *ctx,
+ GLenum type,
+ GLuint reqstride,
+ GLboolean reqwriteable,
+ GLboolean *writeable )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+/* fprintf(stderr, "%s %d\n", __FUNCTION__, ac->NewArrayState & _NEW_ARRAY_NORMAL); */
+
+ /* Can we keep the existing version?
+ */
+ if (ac->NewArrayState & _NEW_ARRAY_NORMAL)
+ reset_normal( ctx );
+
+ /* Do we need to pull in a copy of the client data:
+ */
+ if (ac->Current.Normal->Type != type ||
+ (reqstride != 0 && ac->Current.Normal->StrideB != reqstride) ||
+ (reqwriteable && !ac->Writeable.Normal))
+ import_normal(ctx, type, reqstride );
+
+ *writeable = ac->Writeable.Normal;
+ return ac->Current.Normal;
+}
+
+struct gl_client_array *_ac_import_color( GLcontext *ctx,
+ GLenum type,
+ GLuint reqstride,
+ GLuint reqsize,
+ GLboolean reqwriteable,
+ GLboolean *writeable )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+/* fprintf(stderr, "%s stride %d sz %d wr %d\n", __FUNCTION__, */
+/* reqstride, reqsize, reqwriteable); */
+
+ /* Can we keep the existing version?
+ */
+ if (ac->NewArrayState & _NEW_ARRAY_COLOR)
+ reset_color( ctx );
+
+ /* Is the request impossible?
+ */
+ if (reqsize != 0 && ac->Current.Color->Size > reqsize) {
+/* fprintf(stderr, "%s -- failed\n", __FUNCTION__); */
+ return 0;
+ }
+
+ /* Do we need to pull in a copy of the client data:
+ */
+ if (ac->Current.Color->Type != type ||
+ (reqstride != 0 && ac->Current.Color->StrideB != reqstride) ||
+ (reqwriteable && !ac->Writeable.Color))
+ import_color(ctx, type, reqstride );
+
+ *writeable = ac->Writeable.Color;
+ return ac->Current.Color;
+}
+
+struct gl_client_array *_ac_import_index( GLcontext *ctx,
+ GLenum type,
+ GLuint reqstride,
+ GLboolean reqwriteable,
+ GLboolean *writeable )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ /* Can we keep the existing version?
+ */
+ if (ac->NewArrayState & _NEW_ARRAY_INDEX)
+ reset_index( ctx );
+
+
+ /* Do we need to pull in a copy of the client data:
+ */
+ if (ac->Current.Index->Type != type ||
+ (reqstride != 0 && ac->Current.Index->StrideB != reqstride) ||
+ (reqwriteable && !ac->Writeable.Index))
+ import_index(ctx, type, reqstride );
+
+ *writeable = ac->Writeable.Index;
+ return ac->Current.Index;
+}
+
+struct gl_client_array *_ac_import_secondarycolor( GLcontext *ctx,
+ GLenum type,
+ GLuint reqstride,
+ GLuint reqsize,
+ GLboolean reqwriteable,
+ GLboolean *writeable )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ /* Can we keep the existing version?
+ */
+ if (ac->NewArrayState & _NEW_ARRAY_SECONDARYCOLOR)
+ reset_secondarycolor( ctx );
+
+ /* Is the request impossible?
+ */
+ if (reqsize != 0 && ac->Current.SecondaryColor->Size > reqsize)
+ return 0;
+
+ /* Do we need to pull in a copy of the client data:
+ */
+ if (ac->Current.SecondaryColor->Type != type ||
+ (reqstride != 0 && ac->Current.SecondaryColor->StrideB != reqstride) ||
+ (reqwriteable && !ac->Writeable.SecondaryColor))
+ import_secondarycolor( ctx, type, reqstride );
+
+ *writeable = ac->Writeable.SecondaryColor;
+ return ac->Current.SecondaryColor;
+}
+
+struct gl_client_array *_ac_import_fogcoord( GLcontext *ctx,
+ GLenum type,
+ GLuint reqstride,
+ GLboolean reqwriteable,
+ GLboolean *writeable )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ /* Can we keep the existing version?
+ */
+ if (ac->NewArrayState & _NEW_ARRAY_FOGCOORD)
+ reset_fogcoord( ctx );
+
+ /* Do we need to pull in a copy of the client data:
+ */
+ if (ac->Current.FogCoord->Type != type ||
+ (reqstride != 0 && ac->Current.FogCoord->StrideB != reqstride) ||
+ (reqwriteable && !ac->Writeable.FogCoord))
+ import_fogcoord(ctx, type, reqstride );
+
+ *writeable = ac->Writeable.FogCoord;
+ return ac->Current.FogCoord;
+}
+
+
+
+
+struct gl_client_array *_ac_import_edgeflag( GLcontext *ctx,
+ GLenum type,
+ GLuint reqstride,
+ GLboolean reqwriteable,
+ GLboolean *writeable )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ /* Can we keep the existing version?
+ */
+ if (ac->NewArrayState & _NEW_ARRAY_EDGEFLAG)
+ reset_edgeflag( ctx );
+
+ /* Do we need to pull in a copy of the client data:
+ */
+ if (ac->Current.EdgeFlag->Type != type ||
+ (reqstride != 0 && ac->Current.EdgeFlag->StrideB != reqstride) ||
+ (reqwriteable && !ac->Writeable.EdgeFlag))
+ import_edgeflag(ctx, type, reqstride );
+
+ *writeable = ac->Writeable.EdgeFlag;
+ return ac->Current.EdgeFlag;
+}
+
+
+
+
+
+/* Clients must call this function to validate state and set bounds
+ * before importing any data:
+ */
+void _ac_import_range( GLcontext *ctx, GLuint start, GLuint count )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ /* Discard cached data which has been invalidated by state changes
+ * since last time. **ALREADY DONE**
+ if (ac->NewState)
+ _ac_update_state( ctx );
+ */
+
+ if (!ctx->Array.LockCount) {
+ /* Not locked, discard cached data. Changes to lock
+ * status are caught via. _ac_invalidate_state().
+ */
+ ac->NewArrayState = _NEW_ARRAY_ALL;
+ ac->start = start;
+ ac->count = count;
+ }
+ else {
+ /* Locked, discard data for any disabled arrays. Require that
+ * the whole locked range always be dealt with, otherwise hard to
+ * maintain cached data in the face of clipping.
+ */
+ ac->NewArrayState |= ~ctx->Array._Enabled;
+ ac->start = ctx->Array.LockFirst;
+ ac->count = ctx->Array.LockCount;
+ ASSERT(ac->start == start); /* hmm? */
+ ASSERT(ac->count == count);
+ }
+}
+
+
+
+/* Additional convienence function for importing a the element list
+ * for drawelements, drawrangeelements:
+ */
+CONST void *
+_ac_import_elements( GLcontext *ctx,
+ GLenum new_type,
+ GLuint count,
+ GLenum old_type,
+ CONST void *indices )
+{
+ ACcontext *ac = AC_CONTEXT(ctx);
+
+ if (old_type == new_type)
+ return indices;
+
+ if (ac->elt_size < count * sizeof(GLuint)) {
+ if (ac->Elts) FREE(ac->Elts);
+ while (ac->elt_size < count * sizeof(GLuint))
+ ac->elt_size *= 2;
+ ac->Elts = MALLOC(ac->elt_size);
+ }
+
+ switch (new_type) {
+ case GL_UNSIGNED_BYTE:
+ ASSERT(0);
+ return 0;
+ case GL_UNSIGNED_SHORT:
+ ASSERT(0);
+ return 0;
+ case GL_UNSIGNED_INT: {
+ GLuint *out = (GLuint *)ac->Elts;
+ GLuint i;
+
+ switch (old_type) {
+ case GL_UNSIGNED_BYTE: {
+ CONST GLubyte *in = (CONST GLubyte *)indices;
+ for (i = 0 ; i < count ; i++)
+ out[i] = in[i];
+ break;
+ }
+ case GL_UNSIGNED_SHORT: {
+ CONST GLushort *in = (CONST GLushort *)indices;
+ for (i = 0 ; i < count ; i++)
+ out[i] = in[i];
+ break;
+ }
+ default:
+ ASSERT(0);
+ }
+
+ return (CONST void *)out;
+ }
+ default:
+ ASSERT(0);
+ break;
+ }
+
+ return 0;
+}
+
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