/************************************************************************** * * Copyright 2011 Marek Olšák <maraeo@gmail.com> * 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, 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 AUTHORS AND/OR ITS 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. * **************************************************************************/ #ifndef U_VBUF_H #define U_VBUF_H /* This module takes care of user buffer uploads and vertex format fallbacks. * It's designed for the drivers which don't want to use the Draw module. * There is a more detailed description at the beginning of the .c file. */ #include "pipe/p_context.h" #include "pipe/p_state.h" #include "pipe/p_format.h" struct cso_context; struct u_vbuf; /* Hardware vertex fetcher limitations can be described by this structure. */ struct u_vbuf_caps { enum pipe_format format_translation[PIPE_FORMAT_COUNT]; /* Whether vertex fetches don't have to be 4-byte-aligned. */ /* TRUE if hardware supports it. */ unsigned buffer_offset_unaligned:1; unsigned buffer_stride_unaligned:1; unsigned velem_src_offset_unaligned:1; /* Whether the driver supports user vertex buffers. */ unsigned user_vertex_buffers:1; }; boolean u_vbuf_get_caps(struct pipe_screen *screen, struct u_vbuf_caps *caps); struct u_vbuf * u_vbuf_create(struct pipe_context *pipe, struct u_vbuf_caps *caps, unsigned aux_vertex_buffer_index); void u_vbuf_destroy(struct u_vbuf *mgr); /* State and draw functions. */ void u_vbuf_set_vertex_elements(struct u_vbuf *mgr, unsigned count, const struct pipe_vertex_element *states); void u_vbuf_set_vertex_buffers(struct u_vbuf *mgr, unsigned start_slot, unsigned count, const struct pipe_vertex_buffer *bufs); void u_vbuf_set_index_buffer(struct u_vbuf *mgr, const struct pipe_index_buffer *ib); void u_vbuf_draw_vbo(struct u_vbuf *mgr, const struct pipe_draw_info *info); /* Save/restore functionality. */ void u_vbuf_save_vertex_elements(struct u_vbuf *mgr); void u_vbuf_restore_vertex_elements(struct u_vbuf *mgr); void u_vbuf_save_aux_vertex_buffer_slot(struct u_vbuf *mgr); void u_vbuf_restore_aux_vertex_buffer_slot(struct u_vbuf *mgr); #endif