1 /************************************************************************** 2 3 Copyright 2002 VMware, Inc. 4 5 All Rights Reserved. 6 7 Permission is hereby granted, free of charge, to any person obtaining a 8 copy of this software and associated documentation files (the "Software"), 9 to deal in the Software without restriction, including without limitation 10 on the rights to use, copy, modify, merge, publish, distribute, sub 11 license, and/or sell copies of the Software, and to permit persons to whom 12 the Software is furnished to do so, subject to the following conditions: 13 14 The above copyright notice and this permission notice (including the next 15 paragraph) shall be included in all copies or substantial portions of the 16 Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 21 VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 22 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 23 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 24 USE OR OTHER DEALINGS IN THE SOFTWARE. 25 26 **************************************************************************/ 27 28 /* 29 * Authors: 30 * Keith Whitwell <keithw@vmware.com> 31 * 32 */ 33 34 #ifndef __VBO_EXEC_H__ 35 #define __VBO_EXEC_H__ 36 37 #include "main/mtypes.h" 38 #include "vbo.h" 39 #include "vbo_attrib.h" 40 41 #include "main/imports.h" 42 43 /** 44 * Max number of primitives (number of glBegin/End pairs) per VBO. 45 */ 46 #define VBO_MAX_PRIM 64 47 48 49 /** 50 * Size of the VBO to use for glBegin/glVertex/glEnd-style rendering. 51 */ 52 #define VBO_VERT_BUFFER_SIZE (1024*64) /* bytes */ 53 54 55 /** Current vertex program mode */ 56 enum vp_mode { 57 VP_NONE, /**< fixed function */ 58 VP_ARB /**< ARB vertex program or GLSL vertex shader */ 59 }; 60 61 62 struct vbo_exec_eval1_map { 63 struct gl_1d_map *map; 64 GLuint sz; 65 }; 66 67 struct vbo_exec_eval2_map { 68 struct gl_2d_map *map; 69 GLuint sz; 70 }; 71 72 73 74 struct vbo_exec_copied_vtx { 75 fi_type buffer[VBO_ATTRIB_MAX * 4 * VBO_MAX_COPIED_VERTS]; 76 GLuint nr; 77 }; 78 79 80 struct vbo_exec_context 81 { 82 struct gl_context *ctx; 83 GLvertexformat vtxfmt; 84 GLvertexformat vtxfmt_noop; 85 GLboolean validating; /**< if we're in the middle of state validation */ 86 87 struct { 88 struct gl_buffer_object *bufferobj; 89 90 GLuint vertex_size; /* in dwords */ 91 92 struct _mesa_prim prim[VBO_MAX_PRIM]; 93 GLuint prim_count; 94 95 fi_type *buffer_map; 96 fi_type *buffer_ptr; /* cursor, points into buffer */ 97 GLuint buffer_used; /* in bytes */ 98 fi_type vertex[VBO_ATTRIB_MAX*4]; /* current vertex */ 99 100 GLuint vert_count; /**< Number of vertices currently in buffer */ 101 GLuint max_vert; /**< Max number of vertices allowed in buffer */ 102 struct vbo_exec_copied_vtx copied; 103 104 GLbitfield64 enabled; /**< mask of enabled vbo arrays. */ 105 GLubyte attrsz[VBO_ATTRIB_MAX]; /**< nr. of attrib components (1..4) */ 106 GLenum attrtype[VBO_ATTRIB_MAX]; /**< GL_FLOAT, GL_DOUBLE, GL_INT, etc */ 107 GLubyte active_sz[VBO_ATTRIB_MAX]; /**< attrib size (nr. 32-bit words) */ 108 109 /** pointers into the current 'vertex' array, declared above */ 110 fi_type *attrptr[VBO_ATTRIB_MAX]; 111 112 struct gl_vertex_array arrays[VERT_ATTRIB_MAX]; 113 114 /* According to program mode, the values above plus current 115 * values are squashed down to the 32 attributes passed to the 116 * vertex program below: 117 */ 118 const struct gl_vertex_array *inputs[VERT_ATTRIB_MAX]; 119 } vtx; 120 121 struct { 122 GLboolean recalculate_maps; 123 struct vbo_exec_eval1_map map1[VERT_ATTRIB_MAX]; 124 struct vbo_exec_eval2_map map2[VERT_ATTRIB_MAX]; 125 } eval; 126 127 struct { 128 /* Arrays and current values manipulated according to program 129 * mode, etc. These are the attributes as seen by vertex 130 * programs: 131 */ 132 const struct gl_vertex_array *inputs[VERT_ATTRIB_MAX]; 133 GLboolean recalculate_inputs; 134 } array; 135 136 /* Which flags to set in vbo_exec_begin_vertices() */ 137 GLbitfield begin_vertices_flags; 138 139 #ifdef DEBUG 140 GLint flush_call_depth; 141 #endif 142 }; 143 144 145 146 /* External API: 147 */ 148 void vbo_exec_init( struct gl_context *ctx ); 149 void vbo_exec_destroy( struct gl_context *ctx ); 150 void vbo_exec_invalidate_state( struct gl_context *ctx, GLbitfield new_state ); 151 152 153 /* Internal functions: 154 */ 155 void vbo_exec_vtx_init( struct vbo_exec_context *exec ); 156 void vbo_exec_vtx_destroy( struct vbo_exec_context *exec ); 157 158 159 void vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap ); 160 void vbo_exec_vtx_map( struct vbo_exec_context *exec ); 161 162 163 void vbo_exec_eval_update( struct vbo_exec_context *exec ); 164 165 void vbo_exec_do_EvalCoord2f( struct vbo_exec_context *exec, 166 GLfloat u, GLfloat v ); 167 168 void vbo_exec_do_EvalCoord1f( struct vbo_exec_context *exec, 169 GLfloat u); 170 171 #endif 172