src/vulkan/anv_util.c

   1 /*
   2  * Copyright © 2015 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include <assert.h>
  30
  31 #include "anv_private.h"
  32
  33 /** Log an error message.  */
  34 void anv_printflike(1, 2)
  35 anv_loge(const char *format, ...)
  36 {
  37    va_list va;
  38
  39    va_start(va, format);
  40    anv_loge_v(format, va);
  41    va_end(va);
  42 }
  43
  44 /** \see anv_loge() */
  45 void
  46 anv_loge_v(const char *format, va_list va)
  47 {
  48    fprintf(stderr, "vk: error: ");
  49    vfprintf(stderr, format, va);
  50    fprintf(stderr, "\n");
  51 }
  52
  53 void anv_printflike(3, 4)
  54 __anv_finishme(const char *file, int line, const char *format, ...)
  55 {
  56    va_list ap;
  57    char buffer[256];
  58
  59    va_start(ap, format);
  60    vsnprintf(buffer, sizeof(buffer), format, ap);
  61    va_end(ap);
  62
  63    fprintf(stderr, "%s:%d: FINISHME: %s\n", file, line, buffer);
  64 }
  65
  66 void anv_noreturn anv_printflike(1, 2)
  67 anv_abortf(const char *format, ...)
  68 {
  69    va_list va;
  70
  71    va_start(va, format);
  72    anv_abortfv(format, va);
  73    va_end(va);
  74 }
  75
  76 void anv_noreturn
  77 anv_abortfv(const char *format, va_list va)
  78 {
  79    fprintf(stderr, "vk: error: ");
  80    vfprintf(stderr, format, va);
  81    fprintf(stderr, "\n");
  82    abort();
  83 }
  84
  85 int
  86 anv_vector_init(struct anv_vector *vector, uint32_t element_size, uint32_t size)
  87 {
  88    assert(util_is_power_of_two(size));
  89    assert(element_size < size && util_is_power_of_two(element_size));
  90
  91    vector->head = 0;
  92    vector->tail = 0;
  93    vector->element_size = element_size;
  94    vector->size = size;
  95    vector->data = malloc(size);
  96
  97    return vector->data != NULL;
  98 }
  99
 100 void *
 101 anv_vector_add(struct anv_vector *vector)
 102 {
 103    uint32_t offset, size, split, tail;
 104    void *data;
 105
 106    if (vector->head - vector->tail == vector->size) {
 107       size = vector->size * 2;
 108       data = malloc(size);
 109       if (data == NULL)
 110          return NULL;
 111       split = align_u32(vector->tail, vector->size);
 112       tail = vector->tail & (vector->size - 1);
 113       if (vector->head - split < vector->size) {
 114          memcpy(data + tail,
 115                 vector->data + tail,
 116                 split - vector->tail);
 117          memcpy(data + vector->size,
 118                 vector->data, vector->head - split);
 119       } else {
 120          memcpy(data + tail,
 121                 vector->data + tail,
 122                 vector->head - vector->tail);
 123       }
 124       free(vector->data);
 125       vector->data = data;
 126       vector->size = size;
 127    }
 128
 129    assert(vector->head - vector->tail < vector->size);
 130
 131    offset = vector->head & (vector->size - 1);
 132    vector->head += vector->element_size;
 133
 134    return vector->data + offset;
 135 }
 136
 137 void *
 138 anv_vector_remove(struct anv_vector *vector)
 139 {
 140    uint32_t offset;
 141
 142    if (vector->head == vector->tail)
 143       return NULL;
 144
 145    assert(vector->head - vector->tail <= vector->size);
 146
 147    offset = vector->tail & (vector->size - 1);
 148    vector->tail += vector->element_size;
 149
 150    return vector->data + offset;
 151 }