1/************************************************************************** 2 3Copyright 2002 VMware, Inc. 4 5All Rights Reserved. 6 7Permission is hereby granted, free of charge, to any person obtaining a 8copy of this software and associated documentation files (the "Software"), 9to deal in the Software without restriction, including without limitation 10on the rights to use, copy, modify, merge, publish, distribute, sub 11license, and/or sell copies of the Software, and to permit persons to whom 12the Software is furnished to do so, subject to the following conditions: 13 14The above copyright notice and this permission notice (including the next 15paragraph) shall be included in all copies or substantial portions of the 16Software. 17 18THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 21VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 22DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 23OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 24USE OR OTHER DEALINGS IN THE SOFTWARE. 25 26**************************************************************************/ 27 28/* 29 * Authors: 30 * Keith Whitwell <keithw@vmware.com> 31 * 32 */ 33 34#ifndef VBO_SAVE_H 35#define VBO_SAVE_H 36 37#include "dlist.h" 38#include "vbo.h" 39#include "vbo_attrib.h" 40 41/* For display lists, this structure holds a run of vertices of the 42 * same format, and a strictly well-formed set of begin/end pairs, 43 * starting on the first vertex and ending at the last. Vertex 44 * copying on buffer breaks is precomputed according to these 45 * primitives, though there are situations where the copying will need 46 * correction at execute-time, perhaps by replaying the list as 47 * immediate mode commands. 48 * 49 * On executing this list, the 'current' values may be updated with 50 * the values of the final vertex, and often no fixup of the start of 51 * the vertex list is required. 52 * 53 * Eval and other commands that don't fit into these vertex lists are 54 * compiled using the fallback opcode mechanism provided by dlist.c. 55 */ 56struct vbo_save_vertex_list { 57 union gl_dlist_node header; 58 59 /* Data used in vbo_save_playback_vertex_list */ 60 unsigned num_draws; 61 uint8_t *modes; 62 union { 63 struct pipe_draw_start_count_bias *start_counts; 64 struct pipe_draw_start_count_bias start_count; 65 }; 66 uint8_t mode; 67 bool draw_begins; 68 69 int16_t private_refcount[VP_MODE_MAX]; 70 struct gl_context *ctx; 71 struct pipe_vertex_state *state[VP_MODE_MAX]; 72 GLbitfield enabled_attribs[VP_MODE_MAX]; 73 74 /* Cold: used during construction or to handle edge-cases. 75 * It's not part of the structure because we want display list nodes 76 * to be tightly packed to get cache hits. Without this, performance would 77 * decrease by an order of magnitude with 10k display lists. 78 */ 79 struct { 80 struct gl_vertex_array_object *VAO[VP_MODE_MAX]; 81 struct _mesa_index_buffer ib; 82 83 struct pipe_draw_info info; 84 85 /* Copy of the final vertex from node->vertex_store->bufferobj. 86 * Keep this in regular (non-VBO) memory to avoid repeated 87 * map/unmap of the VBO when updating GL current data. 88 */ 89 fi_type *current_data; 90 91 GLuint vertex_count; /**< number of vertices in this list */ 92 GLuint wrap_count; /* number of copied vertices at start */ 93 94 struct _mesa_prim *prims; 95 GLuint prim_count; 96 GLuint min_index, max_index; 97 } *cold; 98}; 99 100 101/** 102 * Return the stride in bytes of the display list node. 103 */ 104static inline GLsizei 105_vbo_save_get_stride(const struct vbo_save_vertex_list *node) 106{ 107 return node->cold->VAO[0]->BufferBinding[0].Stride; 108} 109 110/* Default size for the buffer holding the vertices and the indices. 111 * A bigger buffer helps reducing the number of draw calls but may 112 * waste memory. 113 */ 114#define VBO_SAVE_BUFFER_SIZE (20*1024*1024) 115#define VBO_SAVE_PRIM_MODE_MASK 0x3f 116 117struct vbo_save_vertex_store { 118 fi_type *buffer_in_ram; 119 GLuint buffer_in_ram_size; 120 GLuint used; /**< Number of 4-byte words used in buffer */ 121}; 122 123struct vbo_save_primitive_store { 124 struct _mesa_prim *prims; 125 GLuint used; 126 GLuint size; 127}; 128 129 130void vbo_save_init(struct gl_context *ctx); 131void vbo_save_destroy(struct gl_context *ctx); 132 133/* save_loopback.c: 134 */ 135void _vbo_loopback_vertex_list(struct gl_context *ctx, 136 const struct vbo_save_vertex_list* node, 137 fi_type *buffer); 138 139/* Callbacks: 140 */ 141void 142vbo_save_playback_vertex_list(struct gl_context *ctx, void *data, bool copy_to_current); 143 144void 145vbo_save_playback_vertex_list_loopback(struct gl_context *ctx, void *data); 146 147void 148vbo_save_api_init(struct vbo_save_context *save); 149 150#endif /* VBO_SAVE_H */ 151