1 /**************************************************************************
2 *
3 * Copyright 2012 Marek Olšák <maraeo@gmail.com>
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL THE AUTHORS AND/OR THEIR SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #ifndef U_HELPERS_H
29 #define U_HELPERS_H
30
31 #include "pipe/p_state.h"
32 #include "c11/threads.h"
33 #include "compiler/shader_enums.h"
34 #include <stdio.h>
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 void util_set_vertex_buffers_mask(struct pipe_vertex_buffer *dst,
41 uint32_t *enabled_buffers,
42 const struct pipe_vertex_buffer *src,
43 unsigned start_slot, unsigned count);
44
45 void util_set_vertex_buffers_count(struct pipe_vertex_buffer *dst,
46 unsigned *dst_count,
47 const struct pipe_vertex_buffer *src,
48 unsigned start_slot, unsigned count);
49
50 void util_set_shader_buffers_mask(struct pipe_shader_buffer *dst,
51 uint32_t *enabled_buffers,
52 const struct pipe_shader_buffer *src,
53 unsigned start_slot, unsigned count);
54
55 bool util_upload_index_buffer(struct pipe_context *pipe,
56 const struct pipe_draw_info *info,
57 struct pipe_resource **out_buffer,
58 unsigned *out_offset, unsigned alignment);
59
60 /* Helper function to determine if the varying should contain the point
61 * coordinates, given the sprite_coord_enable mask. Requires
62 * PIPE_CAP_TGSI_TEXCOORD to be enabled.
63 */
64 static inline bool
util_varying_is_point_coord(gl_varying_slot slot,uint32_t sprite_coord_enable)65 util_varying_is_point_coord(gl_varying_slot slot, uint32_t sprite_coord_enable)
66 {
67 if (slot == VARYING_SLOT_PNTC)
68 return true;
69
70 if (slot >= VARYING_SLOT_TEX0 && slot <= VARYING_SLOT_TEX7 &&
71 (sprite_coord_enable & (1 << (slot - VARYING_SLOT_TEX0)))) {
72 return true;
73 }
74
75 return false;
76 }
77
78 struct pipe_query *
79 util_begin_pipestat_query(struct pipe_context *ctx);
80
81 void
82 util_end_pipestat_query(struct pipe_context *ctx, struct pipe_query *q,
83 FILE *f);
84
85 void
86 util_wait_for_idle(struct pipe_context *ctx);
87
88 /* A utility for throttling execution based on memory usage. */
89 struct util_throttle {
90 struct {
91 struct pipe_fence_handle *fence;
92 uint64_t mem_usage;
93 } ring[10];
94
95 unsigned flush_index;
96 unsigned wait_index;
97 uint64_t max_mem_usage;
98 };
99
100 void util_throttle_init(struct util_throttle *t, uint64_t max_mem_usage);
101 void util_throttle_deinit(struct pipe_screen *screen, struct util_throttle *t);
102 void util_throttle_memory_usage(struct pipe_context *pipe,
103 struct util_throttle *t, uint64_t memory_size);
104
105 #ifdef __cplusplus
106 }
107 #endif
108
109 #endif
110