101e04c3fSmrg/**************************************************************************** 201e04c3fSmrg * Copyright (C) 2015 Intel Corporation. All Rights Reserved. 301e04c3fSmrg * 401e04c3fSmrg * Permission is hereby granted, free of charge, to any person obtaining a 501e04c3fSmrg * copy of this software and associated documentation files (the "Software"), 601e04c3fSmrg * to deal in the Software without restriction, including without limitation 701e04c3fSmrg * the rights to use, copy, modify, merge, publish, distribute, sublicense, 801e04c3fSmrg * and/or sell copies of the Software, and to permit persons to whom the 901e04c3fSmrg * Software is furnished to do so, subject to the following conditions: 1001e04c3fSmrg * 1101e04c3fSmrg * The above copyright notice and this permission notice (including the next 1201e04c3fSmrg * paragraph) shall be included in all copies or substantial portions of the 1301e04c3fSmrg * Software. 1401e04c3fSmrg * 1501e04c3fSmrg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 1601e04c3fSmrg * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 1701e04c3fSmrg * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 1801e04c3fSmrg * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 1901e04c3fSmrg * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 2001e04c3fSmrg * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 2101e04c3fSmrg * IN THE SOFTWARE. 2201e04c3fSmrg ***************************************************************************/ 2301e04c3fSmrg 2401e04c3fSmrg#ifndef SWR_SCRATCH_H 2501e04c3fSmrg#define SWR_SCRATCH_H 2601e04c3fSmrg 2701e04c3fSmrgstruct swr_scratch_space { 2801e04c3fSmrg void *head; 2901e04c3fSmrg unsigned int current_size; 3001e04c3fSmrg /* TODO XXX: Add a fence for wrap condition. */ 3101e04c3fSmrg 3201e04c3fSmrg void *base; 3301e04c3fSmrg}; 3401e04c3fSmrg 3501e04c3fSmrgstruct swr_scratch_buffers { 3601e04c3fSmrg struct swr_scratch_space vs_constants; 3701e04c3fSmrg struct swr_scratch_space fs_constants; 3801e04c3fSmrg struct swr_scratch_space gs_constants; 397ec681f3Smrg struct swr_scratch_space tcs_constants; 407ec681f3Smrg struct swr_scratch_space tes_constants; 4101e04c3fSmrg struct swr_scratch_space vertex_buffer; 4201e04c3fSmrg struct swr_scratch_space index_buffer; 4301e04c3fSmrg}; 4401e04c3fSmrg 4501e04c3fSmrg 4601e04c3fSmrg/* 4701e04c3fSmrg * swr_copy_to_scratch_space 4801e04c3fSmrg * Copies size bytes of user_buffer into the scratch ring buffer. 4901e04c3fSmrg * Used to store temporary data such as client arrays and constants. 5001e04c3fSmrg * 5101e04c3fSmrg * Inputs: 5201e04c3fSmrg * space ptr to scratch pool (vs_constants, fs_constants) 5301e04c3fSmrg * user_buffer, data to copy into scratch space 5401e04c3fSmrg * size to be copied 5501e04c3fSmrg * Returns: 5601e04c3fSmrg * pointer to data copied to scratch space. 5701e04c3fSmrg */ 5801e04c3fSmrgvoid *swr_copy_to_scratch_space(struct swr_context *ctx, 5901e04c3fSmrg struct swr_scratch_space *space, 6001e04c3fSmrg const void *user_buffer, 6101e04c3fSmrg unsigned int size); 6201e04c3fSmrg 6301e04c3fSmrgvoid swr_init_scratch_buffers(struct swr_context *ctx); 6401e04c3fSmrgvoid swr_destroy_scratch_buffers(struct swr_context *ctx); 6501e04c3fSmrg 6601e04c3fSmrg#endif 67