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+/*
+ * Copyright 2003 Tungsten Graphics, inc.
+ * 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
+ * TUNGSTEN GRAPHICS 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.
+ *
+ * Authors:
+ * Keith Whitwell <keithw@tungstengraphics.com>
+ */
+
+#ifndef VF_VERTEX_H
+#define VF_VERTEX_H
+
+#include "mtypes.h"
+#include "m_vector.h"
+
+enum {
+ VF_ATTRIB_POS = 0,
+ VF_ATTRIB_WEIGHT = 1,
+ VF_ATTRIB_NORMAL = 2,
+ VF_ATTRIB_COLOR0 = 3,
+ VF_ATTRIB_COLOR1 = 4,
+ VF_ATTRIB_FOG = 5,
+ VF_ATTRIB_COLOR_INDEX = 6,
+ VF_ATTRIB_EDGEFLAG = 7,
+ VF_ATTRIB_TEX0 = 8,
+ VF_ATTRIB_TEX1 = 9,
+ VF_ATTRIB_TEX2 = 10,
+ VF_ATTRIB_TEX3 = 11,
+ VF_ATTRIB_TEX4 = 12,
+ VF_ATTRIB_TEX5 = 13,
+ VF_ATTRIB_TEX6 = 14,
+ VF_ATTRIB_TEX7 = 15,
+ VF_ATTRIB_POINTSIZE = 16,
+ VF_ATTRIB_BFC0 = 17,
+ VF_ATTRIB_BFC1 = 18,
+ VF_ATTRIB_CLIP_POS = 19,
+ VF_ATTRIB_VERTEX_HEADER = 20,
+ VF_ATTRIB_MAX = 21
+};
+
+
+enum vf_attr_format {
+ EMIT_1F,
+ EMIT_2F,
+ EMIT_3F,
+ EMIT_4F,
+ EMIT_2F_VIEWPORT, /* do viewport transform and emit */
+ EMIT_3F_VIEWPORT, /* do viewport transform and emit */
+ EMIT_4F_VIEWPORT, /* do viewport transform and emit */
+ EMIT_3F_XYW, /* for projective texture */
+ EMIT_1UB_1F, /* for fog coordinate */
+ EMIT_3UB_3F_RGB, /* for specular color */
+ EMIT_3UB_3F_BGR, /* for specular color */
+ EMIT_4UB_4F_RGBA, /* for color */
+ EMIT_4UB_4F_BGRA, /* for color */
+ EMIT_4UB_4F_ARGB, /* for color */
+ EMIT_4UB_4F_ABGR, /* for color */
+ EMIT_4CHAN_4F_RGBA, /* for swrast color */
+ EMIT_PAD, /* leave a hole of 'offset' bytes */
+ EMIT_MAX
+};
+
+struct vf_attr_map {
+ GLuint attrib;
+ enum vf_attr_format format;
+ GLuint offset;
+};
+
+struct vertex_fetch;
+
+void vf_set_vp_matrix( struct vertex_fetch *vf,
+ const GLfloat *viewport );
+
+void vf_set_vp_scale_translate( struct vertex_fetch *vf,
+ const GLfloat *scale,
+ const GLfloat *translate );
+
+GLuint vf_set_vertex_attributes( struct vertex_fetch *vf,
+ const struct vf_attr_map *map,
+ GLuint nr,
+ GLuint vertex_stride );
+
+void vf_set_sources( struct vertex_fetch *vf,
+ GLvector4f * const attrib[],
+ GLuint start );
+
+void vf_emit_vertices( struct vertex_fetch *vf,
+ GLuint count,
+ void *dest );
+
+void vf_get_attr( struct vertex_fetch *vf,
+ const void *vertex,
+ GLenum attr,
+ const GLfloat *dflt,
+ GLfloat *dest );
+
+struct vertex_fetch *vf_create( GLboolean allow_viewport_emits );
+
+void vf_destroy( struct vertex_fetch *vf );
+
+
+
+/***********************************************************************
+ * Internal functions and structs:
+ */
+
+struct vf_attr;
+
+typedef void (*vf_extract_func)( const struct vf_attr *a,
+ GLfloat *out,
+ const GLubyte *v );
+
+typedef void (*vf_insert_func)( const struct vf_attr *a,
+ GLubyte *v,
+ const GLfloat *in );
+
+typedef void (*vf_emit_func)( struct vertex_fetch *vf,
+ GLuint count,
+ GLubyte *dest );
+
+
+
+/* Describes how to convert/move a vertex attribute from a vertex
+ * array to a vertex structure.
+ */
+struct vf_attr
+{
+ struct vertex_fetch *vf;
+
+ GLuint format;
+ GLuint inputsize;
+ GLuint inputstride;
+ GLuint vertoffset; /* position of the attrib in the vertex struct */
+
+ GLuint attrib; /* which vertex attrib (0=position, etc) */
+ GLuint vertattrsize; /* size of the attribute in bytes */
+
+ GLubyte *inputptr;
+ const vf_insert_func *insert;
+ vf_insert_func do_insert;
+ vf_extract_func extract;
+};
+
+struct vertex_fetch
+{
+ struct vf_attr attr[VF_ATTRIB_MAX];
+ GLuint attr_count;
+ GLuint vertex_stride;
+
+ struct vf_attr *lookup[VF_ATTRIB_MAX];
+
+ vf_emit_func emit;
+
+ /* Parameters and constants for codegen:
+ */
+ GLboolean allow_viewport_emits;
+ GLfloat vp[8];
+ GLfloat chan_scale[4];
+ GLfloat identity[4];
+
+ struct vf_fastpath *fastpath;
+
+ void (*codegen_emit)( struct vertex_fetch *vf );
+};
+
+
+struct vf_attr_type {
+ GLuint format;
+ GLuint size;
+ GLuint stride;
+ GLuint offset;
+};
+
+struct vf_fastpath {
+ GLuint vertex_stride;
+ GLuint attr_count;
+ GLboolean match_strides;
+
+ struct vf_attr_type *attr;
+
+ vf_emit_func func;
+ struct vf_fastpath *next;
+};
+
+
+void vf_register_fastpath( struct vertex_fetch *vtx,
+ GLboolean match_strides );
+
+void vf_generic_emit( struct vertex_fetch *vf,
+ GLuint count,
+ GLubyte *v );
+
+void vf_generate_hardwired_emit( struct vertex_fetch *vf );
+
+void vf_generate_sse_emit( struct vertex_fetch *vf );
+
+
+struct vf_format_info {
+ const char *name;
+ vf_extract_func extract;
+ vf_insert_func insert[4];
+ const GLuint attrsize;
+};
+
+const struct vf_format_info vf_format_info[EMIT_MAX];
+
+
+#endif