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 unsigned unbind_num_trailing_slots,
45 bool take_ownership);
46
47 void util_set_vertex_buffers_count(struct pipe_vertex_buffer *dst,
48 unsigned *dst_count,
49 const struct pipe_vertex_buffer *src,
50 unsigned start_slot, unsigned count,
51 unsigned unbind_num_trailing_slots,
52 bool take_ownership);
53
54 void util_set_shader_buffers_mask(struct pipe_shader_buffer *dst,
55 uint32_t *enabled_buffers,
56 const struct pipe_shader_buffer *src,
57 unsigned start_slot, unsigned count);
58
59 bool util_upload_index_buffer(struct pipe_context *pipe,
60 const struct pipe_draw_info *info,
61 const struct pipe_draw_start_count_bias *draw,
62 struct pipe_resource **out_buffer,
63 unsigned *out_offset, unsigned alignment);
64
65 void
66 util_lower_uint64_vertex_elements(const struct pipe_vertex_element **velems,
67 unsigned *velem_count,
68 struct pipe_vertex_element tmp[PIPE_MAX_ATTRIBS]);
69
70 /* Helper function to determine if the varying should contain the point
71 * coordinates, given the sprite_coord_enable mask. Requires
72 * PIPE_CAP_TGSI_TEXCOORD to be enabled.
73 */
74 static inline bool
util_varying_is_point_coord(gl_varying_slot slot,uint32_t sprite_coord_enable)75 util_varying_is_point_coord(gl_varying_slot slot, uint32_t sprite_coord_enable)
76 {
77 if (slot == VARYING_SLOT_PNTC)
78 return true;
79
80 if (slot >= VARYING_SLOT_TEX0 && slot <= VARYING_SLOT_TEX7 &&
81 (sprite_coord_enable & (1 << (slot - VARYING_SLOT_TEX0)))) {
82 return true;
83 }
84
85 return false;
86 }
87
88 struct pipe_query *
89 util_begin_pipestat_query(struct pipe_context *ctx);
90
91 void
92 util_end_pipestat_query(struct pipe_context *ctx, struct pipe_query *q,
93 FILE *f);
94
95 struct pipe_query *
96 util_begin_time_query(struct pipe_context *ctx);
97 void
98 util_end_time_query(struct pipe_context *ctx, struct pipe_query *q, FILE *f,
99 const char *name);
100
101 void
102 util_wait_for_idle(struct pipe_context *ctx);
103
104 /* A utility for throttling execution based on memory usage. */
105 struct util_throttle {
106 struct {
107 struct pipe_fence_handle *fence;
108 uint64_t mem_usage;
109 } ring[10];
110
111 unsigned flush_index;
112 unsigned wait_index;
113 uint64_t max_mem_usage;
114 };
115
116 void util_throttle_init(struct util_throttle *t, uint64_t max_mem_usage);
117 void util_throttle_deinit(struct pipe_screen *screen, struct util_throttle *t);
118 void util_throttle_memory_usage(struct pipe_context *pipe,
119 struct util_throttle *t, uint64_t memory_size);
120
121 bool
122 util_lower_clearsize_to_dword(const void *clearValue, int *clearValueSize, uint32_t *clamped);
123
124 void
125 util_init_pipe_vertex_state(struct pipe_screen *screen,
126 struct pipe_vertex_buffer *buffer,
127 const struct pipe_vertex_element *elements,
128 unsigned num_elements,
129 struct pipe_resource *indexbuf,
130 uint32_t full_velem_mask,
131 struct pipe_vertex_state *state);
132
133 #ifdef __cplusplus
134 }
135 #endif
136
137 #endif
138