1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/*
Copyright (c) 2011-2023, Intel Corporation
SPDX-License-Identifier: BSD-3-Clause
*/
#ifdef _MSC_VER
#define _CRT_SECURE_NO_WARNINGS
#define ISPC_IS_WINDOWS
#elif defined(__linux__) || defined(__FreeBSD__)
#define ISPC_IS_LINUX
#elif defined(__APPLE__)
#define ISPC_IS_APPLE
#else
#error "Host OS was not detected"
#endif
#include <algorithm>
#include <assert.h>
#include <fcntl.h>
#include <float.h>
#include <math.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <vector>
#ifdef ISPC_IS_WINDOWS
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
#ifdef ISPC_IS_LINUX
#include <malloc.h>
#endif
#include "../../common/timing.h"
#include "deferred.h"
///////////////////////////////////////////////////////////////////////////
static void *lAlignedMalloc(size_t size, int32_t alignment) {
#ifdef ISPC_IS_WINDOWS
return _aligned_malloc(size, alignment);
#elif defined ISPC_IS_LINUX
return memalign(alignment, size);
#elif defined ISPC_IS_APPLE
void *mem = malloc(size + (alignment - 1) + sizeof(void *));
char *amem = ((char *)mem) + sizeof(void *);
amem = amem + uint32_t(alignment - (reinterpret_cast<uint64_t>(amem) & (alignment - 1)));
((void **)amem)[-1] = mem;
return amem;
#else
#error "Host OS was not detected"
#endif
}
static void lAlignedFree(void *ptr) {
#ifdef ISPC_IS_WINDOWS
_aligned_free(ptr);
#elif defined ISPC_IS_LINUX
free(ptr);
#elif defined ISPC_IS_APPLE
free(((void **)ptr)[-1]);
#else
#error "Host OS was not detected"
#endif
}
Framebuffer::Framebuffer(int width, int height) {
nPixels = width * height;
r = (uint8_t *)lAlignedMalloc(nPixels, ALIGNMENT_BYTES);
g = (uint8_t *)lAlignedMalloc(nPixels, ALIGNMENT_BYTES);
b = (uint8_t *)lAlignedMalloc(nPixels, ALIGNMENT_BYTES);
}
Framebuffer::~Framebuffer() {
lAlignedFree(r);
lAlignedFree(g);
lAlignedFree(b);
}
void Framebuffer::clear() {
memset(r, 0, nPixels);
memset(g, 0, nPixels);
memset(b, 0, nPixels);
}
InputData *CreateInputDataFromFile(const char *path) {
FILE *in = fopen(path, "rb");
if (!in)
return 0;
InputData *input = new InputData;
// Load header
if (fread(&input->header, sizeof(ispc::InputHeader), 1, in) != 1) {
fprintf(stderr, "Preumature EOF reading file \"%s\"\n", path);
fclose(in);
delete input;
return nullptr;
}
// Load data chunk and update pointers
input->chunk = (uint8_t *)lAlignedMalloc(input->header.inputDataChunkSize, ALIGNMENT_BYTES);
if (fread(input->chunk, input->header.inputDataChunkSize, 1, in) != 1) {
fprintf(stderr, "Preumature EOF reading file \"%s\"\n", path);
fclose(in);
delete input;
return nullptr;
}
input->arrays.zBuffer = (float *)&input->chunk[input->header.inputDataArrayOffsets[idaZBuffer]];
input->arrays.normalEncoded_x = (uint16_t *)&input->chunk[input->header.inputDataArrayOffsets[idaNormalEncoded_x]];
input->arrays.normalEncoded_y = (uint16_t *)&input->chunk[input->header.inputDataArrayOffsets[idaNormalEncoded_y]];
input->arrays.specularAmount = (uint16_t *)&input->chunk[input->header.inputDataArrayOffsets[idaSpecularAmount]];
input->arrays.specularPower = (uint16_t *)&input->chunk[input->header.inputDataArrayOffsets[idaSpecularPower]];
input->arrays.albedo_x = (uint8_t *)&input->chunk[input->header.inputDataArrayOffsets[idaAlbedo_x]];
input->arrays.albedo_y = (uint8_t *)&input->chunk[input->header.inputDataArrayOffsets[idaAlbedo_y]];
input->arrays.albedo_z = (uint8_t *)&input->chunk[input->header.inputDataArrayOffsets[idaAlbedo_z]];
input->arrays.lightPositionView_x =
(float *)&input->chunk[input->header.inputDataArrayOffsets[idaLightPositionView_x]];
input->arrays.lightPositionView_y =
(float *)&input->chunk[input->header.inputDataArrayOffsets[idaLightPositionView_y]];
input->arrays.lightPositionView_z =
(float *)&input->chunk[input->header.inputDataArrayOffsets[idaLightPositionView_z]];
input->arrays.lightAttenuationBegin =
(float *)&input->chunk[input->header.inputDataArrayOffsets[idaLightAttenuationBegin]];
input->arrays.lightColor_x = (float *)&input->chunk[input->header.inputDataArrayOffsets[idaLightColor_x]];
input->arrays.lightColor_y = (float *)&input->chunk[input->header.inputDataArrayOffsets[idaLightColor_y]];
input->arrays.lightColor_z = (float *)&input->chunk[input->header.inputDataArrayOffsets[idaLightColor_z]];
input->arrays.lightAttenuationEnd =
(float *)&input->chunk[input->header.inputDataArrayOffsets[idaLightAttenuationEnd]];
fclose(in);
return input;
}
void DeleteInputData(InputData *input) { lAlignedFree(input->chunk); }
void WriteFrame(const char *filename, const InputData *input, const Framebuffer &framebuffer) {
// Deswizzle and copy to RGBA output
// Doesn't need to be fast... only happens once
size_t imageBytes = 3 * input->header.framebufferWidth * input->header.framebufferHeight;
uint8_t *framebufferAOS = (uint8_t *)lAlignedMalloc(imageBytes, ALIGNMENT_BYTES);
memset(framebufferAOS, 0, imageBytes);
for (int i = 0; i < input->header.framebufferWidth * input->header.framebufferHeight; ++i) {
framebufferAOS[3 * i + 0] = framebuffer.r[i];
framebufferAOS[3 * i + 1] = framebuffer.g[i];
framebufferAOS[3 * i + 2] = framebuffer.b[i];
}
// Write out simple PPM file
FILE *out = fopen(filename, "wb");
if (!out) {
printf("Couldn't open a file '%s'\n", filename);
exit(1);
}
fprintf(out, "P6 %d %d 255\n", input->header.framebufferWidth, input->header.framebufferHeight);
fwrite(framebufferAOS, imageBytes, 1, out);
fclose(out);
lAlignedFree(framebufferAOS);
}
|
