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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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6 |
* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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9 |
**************************************************************************/ |
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/**************************************************************************/ |
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13 |
/**************************************************************************/ |
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14 |
/** */ |
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15 |
/** GUIX Component */ |
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16 |
/** */ |
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17 |
/** Utility (Utility) */ |
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18 |
/** */ |
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19 |
/**************************************************************************/ |
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20 |
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21 |
#define REDVAL(_c) (GX_UBYTE)(((_c) >> 10) & 0x1f) |
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22 |
#define GREENVAL(_c) (GX_UBYTE)(((_c) >> 5) & 0x1f) |
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23 |
#define BLUEVAL(_c) (GX_UBYTE)(((_c)) & 0x1f) |
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24 |
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25 |
#define ASSEMBLECOLOR(_r, _g, _b) \ |
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26 |
(USHORT)((((_r) & 0x1f) << 10) | \ |
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27 |
(((_g) & 0x1f) << 5) | \ |
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28 |
((_b) & 0x1f)) |
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29 |
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30 |
#define GX_SOURCE_CODE |
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31 |
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32 |
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33 |
/* Include necessary system files. */ |
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34 |
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35 |
#include "gx_api.h" |
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36 |
#include "gx_display.h" |
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37 |
#include "gx_context.h" |
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38 |
#include "gx_utility.h" |
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39 |
#include "gx_system.h" |
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40 |
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41 |
/**************************************************************************/ |
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42 |
/* */ |
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43 |
/* FUNCTION RELEASE */ |
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44 |
/* */ |
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45 |
/* _gx_utility_1555xrgb_pixelmap_raw_rotate PORTABLE C */ |
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46 |
/* 6.1 */ |
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47 |
/* AUTHOR */ |
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48 |
/* */ |
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49 |
/* Kenneth Maxwell, Microsoft Corporation */ |
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50 |
/* */ |
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51 |
/* DESCRIPTION */ |
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52 |
/* */ |
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53 |
/* Internal helper function that rotate an 1555xrgb format pixelmap */ |
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54 |
/* without compression, without alpha. */ |
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55 |
/* */ |
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56 |
/* INPUT */ |
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57 |
/* */ |
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58 |
/* src The pixelmap to be rotated */ |
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59 |
/* angle The angle to be rotated */ |
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60 |
/* destination The rotated bitmap to be */ |
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61 |
/* returned */ |
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62 |
/* rot_cx X coordinate of rotation */ |
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63 |
/* center */ |
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64 |
/* rot_cy Y coordinate of rotation */ |
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65 |
/* center */ |
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66 |
/* */ |
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67 |
/* OUTPUT */ |
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68 |
/* */ |
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69 |
/* status Completion status */ |
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70 |
/* */ |
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71 |
/* CALLS */ |
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72 |
/* */ |
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73 |
/* _gx_system_memory_allocator Memory Allocation routine */ |
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74 |
/* _gx_utility_math_cos Compute the cosine value */ |
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75 |
/* _gx_utility_math_sin Compute the sine value */ |
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76 |
/* */ |
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77 |
/* CALLED BY */ |
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78 |
/* */ |
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79 |
/* GUIX Internal Code */ |
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80 |
/* */ |
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81 |
/* RELEASE HISTORY */ |
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82 |
/* */ |
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83 |
/* DATE NAME DESCRIPTION */ |
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84 |
/* */ |
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85 |
/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
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86 |
/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
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87 |
/* resulting in version 6.1 */ |
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88 |
/* */ |
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89 |
/**************************************************************************/ |
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90 |
360 |
static UINT _gx_utility_1555xrgb_pixelmap_raw_rotate(GX_PIXELMAP *src, INT angle, GX_PIXELMAP *destination, INT *rot_cx, INT *rot_cy) |
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91 |
{ |
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92 |
USHORT *put; |
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93 |
USHORT *get; |
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94 |
GX_UBYTE *putalpha; |
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95 |
INT srcxres; |
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96 |
INT srcyres; |
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97 |
INT cosv; |
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98 |
INT sinv; |
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99 |
USHORT red, green, blue; |
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100 |
INT idxminx, idxmaxx, idxmaxy; |
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101 |
INT *mx; |
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102 |
INT *my; |
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103 |
INT xres; |
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104 |
INT yres; |
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105 |
INT width, height; |
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106 |
INT x, y; |
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107 |
INT xx, yy; |
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108 |
USHORT a, b, c, d; |
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109 |
INT alpha; |
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110 |
INT xdiff, ydiff; |
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111 |
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112 |
360 |
mx = _gx_system_scratchpad; |
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113 |
360 |
my = mx + 4; |
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114 |
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115 |
360 |
mx[0] = mx[3] = -1; |
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116 |
360 |
mx[1] = mx[2] = 1; |
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117 |
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118 |
360 |
my[0] = my[1] = 1; |
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119 |
360 |
my[2] = my[3] = -1; |
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120 |
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121 |
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122 |
360 |
idxminx = (angle / 90) & 0x3; |
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123 |
360 |
idxmaxx = (idxminx + 2) & 0x3; |
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124 |
360 |
idxmaxy = (idxminx + 1) & 0x3; |
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125 |
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126 |
/* Calculate the source x and y center. */ |
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127 |
360 |
srcxres = src -> gx_pixelmap_width >> 1; |
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128 |
360 |
srcyres = src -> gx_pixelmap_height >> 1; |
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129 |
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130 |
360 |
cosv = _gx_utility_math_cos(GX_FIXED_VAL_MAKE(angle)); |
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131 |
360 |
sinv = _gx_utility_math_sin(GX_FIXED_VAL_MAKE(angle)); |
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132 |
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133 |
360 |
xres = mx[idxmaxx] * (srcxres + 2) * cosv - my[idxmaxx] * (srcyres + 2) * sinv; |
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134 |
360 |
yres = my[idxmaxy] * (srcyres + 2) * cosv + mx[idxmaxy] * (srcxres + 2) * sinv; |
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135 |
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136 |
360 |
xres = GX_FIXED_VAL_TO_INT(xres); |
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137 |
360 |
yres = GX_FIXED_VAL_TO_INT(yres); |
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138 |
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139 |
/* Calculate destination width and height. */ |
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140 |
360 |
width = (xres << 1); |
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141 |
360 |
height = (yres << 1); |
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142 |
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143 |
/* Calculate the new rotation axis. */ |
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144 |
✓✓✓✓ |
360 |
if (rot_cx && rot_cy) |
145 |
{ |
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146 |
356 |
x = ((*rot_cx) - srcxres) * cosv - ((*rot_cy) - srcyres) * sinv; |
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147 |
356 |
y = ((*rot_cy) - srcyres) * cosv + ((*rot_cx) - srcxres) * sinv; |
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148 |
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149 |
356 |
srcxres = (INT)*rot_cx; |
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150 |
356 |
srcyres = (INT)*rot_cy; |
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151 |
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152 |
356 |
x = GX_FIXED_VAL_TO_INT(x) + xres; |
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153 |
356 |
y = GX_FIXED_VAL_TO_INT(y) + yres; |
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154 |
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155 |
356 |
*rot_cx = x; |
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156 |
356 |
*rot_cy = y; |
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157 |
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158 |
356 |
xres = *rot_cx; |
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159 |
356 |
yres = *rot_cy; |
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160 |
} |
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161 |
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162 |
360 |
destination -> gx_pixelmap_height = (GX_VALUE)height; |
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163 |
360 |
destination -> gx_pixelmap_width = (GX_VALUE)width; |
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164 |
360 |
destination -> gx_pixelmap_flags |= GX_PIXELMAP_ALPHA; |
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165 |
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166 |
/* Safe int math is not required here, calling function limits max width, height to 14 bits so |
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167 |
overflow cannot occur. */ |
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168 |
360 |
destination -> gx_pixelmap_data_size = (UINT)(height * width) * sizeof(USHORT); |
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169 |
360 |
destination -> gx_pixelmap_data = (GX_UBYTE *)_gx_system_memory_allocator(destination -> gx_pixelmap_data_size); |
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170 |
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171 |
✓✓ | 360 |
if (destination -> gx_pixelmap_data == GX_NULL) |
172 |
{ |
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173 |
2 |
return GX_SYSTEM_MEMORY_ERROR; |
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174 |
} |
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175 |
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176 |
/* Safe int math is not required here, calling function limits max width, height to 14 bits so |
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177 |
overflow cannot occur. */ |
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178 |
358 |
destination -> gx_pixelmap_aux_data_size = (UINT)(height * width) * sizeof(GX_UBYTE); |
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179 |
358 |
destination -> gx_pixelmap_aux_data = (GX_UBYTE *)_gx_system_memory_allocator(destination -> gx_pixelmap_aux_data_size); |
|
180 |
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181 |
✓✓ | 358 |
if (destination -> gx_pixelmap_aux_data == GX_NULL) |
182 |
{ |
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183 |
2 |
_gx_system_memory_free((VOID *)destination -> gx_pixelmap_data); |
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184 |
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185 |
2 |
return GX_SYSTEM_MEMORY_ERROR; |
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186 |
} |
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187 |
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188 |
356 |
put = (USHORT *)destination -> gx_pixelmap_data; |
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189 |
356 |
putalpha = (GX_UBYTE *)destination -> gx_pixelmap_aux_data; |
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190 |
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191 |
/* Loop through the destination's pixels. */ |
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192 |
✓✓ | 84748 |
for (y = 0; y < height; y++) |
193 |
{ |
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194 |
✓✓ | 19864616 |
for (x = 0; x < width; x++) |
195 |
{ |
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196 |
19780224 |
xx = (x - xres) * cosv + (y - yres) * sinv; |
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197 |
19780224 |
yy = (y - yres) * cosv - (x - xres) * sinv; |
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198 |
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199 |
19780224 |
xdiff = GX_FIXED_VAL_TO_INT(xx << 8) & 0xff; |
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200 |
19780224 |
ydiff = GX_FIXED_VAL_TO_INT(yy << 8) & 0xff; |
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201 |
|||
202 |
19780224 |
xx = GX_FIXED_VAL_TO_INT(xx); |
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203 |
19780224 |
yy = GX_FIXED_VAL_TO_INT(yy); |
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204 |
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205 |
19780224 |
xx += srcxres; |
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206 |
19780224 |
yy += srcyres; |
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207 |
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208 |
✓✓✓✓ ✓✓ |
19780224 |
if ((xx >= -1) && (xx < src -> gx_pixelmap_width) && |
209 |
✓✓ | 14425200 |
(yy >= -1) && (yy < src -> gx_pixelmap_height)) |
210 |
{ |
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211 |
✓✓✓✓ ✓✓ |
10943030 |
if ((xx >= 0) && (xx < src -> gx_pixelmap_width - 1) && |
212 |
✓✓ | 10767320 |
(yy >= 0) && (yy < src -> gx_pixelmap_height - 1)) |
213 |
{ |
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214 |
10681560 |
get = (USHORT *)src -> gx_pixelmap_data; |
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215 |
10681560 |
get += yy * src -> gx_pixelmap_width; |
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216 |
10681560 |
get += xx; |
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217 |
|||
218 |
10681560 |
a = *get; |
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219 |
10681560 |
b = *(get + 1); |
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220 |
10681560 |
c = *(get + src -> gx_pixelmap_width); |
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221 |
10681560 |
d = *(get + src -> gx_pixelmap_width + 1); |
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222 |
|||
223 |
10681560 |
alpha = 0xff; |
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224 |
} |
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225 |
else |
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226 |
{ |
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227 |
261470 |
get = (USHORT *)src -> gx_pixelmap_data; |
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228 |
|||
229 |
261470 |
a = 0; |
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230 |
261470 |
b = 0; |
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231 |
261470 |
c = 0; |
|
232 |
261470 |
d = 0; |
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233 |
261470 |
alpha = 0; |
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234 |
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235 |
✓✓ | 261470 |
if (xx == -1) |
236 |
{ |
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237 |
/* handle left edge. */ |
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238 |
✓✓ | 45442 |
if (yy >= 0) |
239 |
{ |
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240 |
45132 |
b = *(get + yy * src -> gx_pixelmap_width); |
|
241 |
45132 |
alpha += xdiff * (256 - ydiff); |
|
242 |
} |
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243 |
|||
244 |
✓✓ | 45442 |
if (yy < src -> gx_pixelmap_height - 1) |
245 |
{ |
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246 |
45100 |
d = *(get + (yy + 1) * src -> gx_pixelmap_width); |
|
247 |
45100 |
alpha += xdiff * ydiff; |
|
248 |
} |
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249 |
} |
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250 |
✓✓ | 216028 |
else if (yy == -1) |
251 |
{ |
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252 |
/* handle top edge. */ |
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253 |
85408 |
c = *(get + xx); |
|
254 |
85408 |
alpha += ydiff * (256 - xdiff); |
|
255 |
|||
256 |
✓✓ | 85408 |
if (xx < src -> gx_pixelmap_width - 1) |
257 |
{ |
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258 |
85054 |
d = *(get + xx + 1); |
|
259 |
85054 |
alpha += xdiff * ydiff; |
|
260 |
} |
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261 |
} |
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262 |
✓✓ | 130620 |
else if (xx == src -> gx_pixelmap_width - 1) |
263 |
{ |
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264 |
/* handle right edget. */ |
||
265 |
44860 |
a = *(get + yy * src -> gx_pixelmap_width + xx); |
|
266 |
44860 |
alpha += (256 - xdiff) * (256 - ydiff); |
|
267 |
|||
268 |
✓✓ | 44860 |
if (yy < src -> gx_pixelmap_height - 1) |
269 |
{ |
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270 |
44496 |
c = *(get + (yy + 1) * src -> gx_pixelmap_width + xx); |
|
271 |
44496 |
alpha += ydiff * (256 - xdiff); |
|
272 |
} |
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273 |
} |
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274 |
else |
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275 |
{ |
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276 |
/* handle bottom edge. */ |
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277 |
85760 |
a = *(get + yy * src -> gx_pixelmap_width + xx); |
|
278 |
85760 |
alpha += (256 - xdiff) * (256 - ydiff); |
|
279 |
|||
280 |
85760 |
b = *(get + yy * src -> gx_pixelmap_width + xx + 1); |
|
281 |
85760 |
alpha += xdiff * (256 - ydiff); |
|
282 |
} |
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283 |
|||
284 |
261470 |
alpha >>= 8; |
|
285 |
} |
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286 |
|||
287 |
10943030 |
red = (USHORT)((REDVAL(a) * (256 - xdiff) * (256 - ydiff) + \ |
|
288 |
10943030 |
REDVAL(b) * xdiff * (256 - ydiff) + \ |
|
289 |
10943030 |
REDVAL(c) * ydiff * (256 - xdiff) + \ |
|
290 |
10943030 |
REDVAL(d) * xdiff * ydiff) >> 16); |
|
291 |
|||
292 |
10943030 |
green = (USHORT)((GREENVAL(a) * (256 - xdiff) * (256 - ydiff) + \ |
|
293 |
10943030 |
GREENVAL(b) * xdiff * (256 - ydiff) + \ |
|
294 |
10943030 |
GREENVAL(c) * ydiff * (256 - xdiff) + \ |
|
295 |
10943030 |
GREENVAL(d) * xdiff * ydiff) >> 16); |
|
296 |
|||
297 |
10943030 |
blue = (USHORT)((BLUEVAL(a) * (256 - xdiff) * (256 - ydiff) + \ |
|
298 |
10943030 |
BLUEVAL(b) * xdiff * (256 - ydiff) + \ |
|
299 |
10943030 |
BLUEVAL(c) * ydiff * (256 - xdiff) + \ |
|
300 |
10943030 |
BLUEVAL(d) * xdiff * ydiff) >> 16); |
|
301 |
|||
302 |
✓✓✓✓ |
10943030 |
if (alpha && (alpha < 0xff)) |
303 |
{ |
||
304 |
259270 |
red = (USHORT)((red << 8) / alpha); |
|
305 |
259270 |
green = (USHORT)((green << 8) / alpha); |
|
306 |
259270 |
blue = (USHORT)((blue << 8) / alpha); |
|
307 |
} |
||
308 |
|||
309 |
10943030 |
red = red > 31 ? 31 : red; |
|
310 |
10943030 |
green = green > 63 ? 63 : green; |
|
311 |
10943030 |
blue = blue > 31 ? 31 : blue; |
|
312 |
10943030 |
alpha = alpha > 255 ? 255 : alpha; |
|
313 |
|||
314 |
10943030 |
*put++ = ASSEMBLECOLOR(red, green, blue); |
|
315 |
10943030 |
*putalpha++ = (GX_UBYTE)alpha; |
|
316 |
} |
||
317 |
else |
||
318 |
{ |
||
319 |
8837194 |
put++; |
|
320 |
8837194 |
*putalpha++ = 0; |
|
321 |
} |
||
322 |
} |
||
323 |
} |
||
324 |
|||
325 |
356 |
return GX_SUCCESS; |
|
326 |
} |
||
327 |
|||
328 |
/**************************************************************************/ |
||
329 |
/* */ |
||
330 |
/* FUNCTION RELEASE */ |
||
331 |
/* */ |
||
332 |
/* _gx_utility_1555xrgb_pixelmap_alpha_rotate PORTABLE C */ |
||
333 |
/* 6.1 */ |
||
334 |
/* AUTHOR */ |
||
335 |
/* */ |
||
336 |
/* Kenneth Maxwell, Microsoft Corporation */ |
||
337 |
/* */ |
||
338 |
/* DESCRIPTION */ |
||
339 |
/* */ |
||
340 |
/* Internal helper function that rotate an 1555xrgb format pixelmap */ |
||
341 |
/* without compression, with alpha. */ |
||
342 |
/* */ |
||
343 |
/* INPUT */ |
||
344 |
/* */ |
||
345 |
/* src The pixelmap to be rotated */ |
||
346 |
/* angle The angle to be rotated */ |
||
347 |
/* destination The rotated bitmap to be */ |
||
348 |
/* returned */ |
||
349 |
/* rot_cx X coordinate of rotation */ |
||
350 |
/* center */ |
||
351 |
/* rot_cy Y coordinate of rotation */ |
||
352 |
/* center */ |
||
353 |
/* */ |
||
354 |
/* OUTPUT */ |
||
355 |
/* */ |
||
356 |
/* status Completion status */ |
||
357 |
/* */ |
||
358 |
/* CALLS */ |
||
359 |
/* */ |
||
360 |
/* _gx_system_memory_allocator Memory Allocation routine */ |
||
361 |
/* _gx_utility_math_cos Compute the cosine value */ |
||
362 |
/* _gx_utility_math_sin Compute the sine value */ |
||
363 |
/* */ |
||
364 |
/* CALLED BY */ |
||
365 |
/* */ |
||
366 |
/* GUIX Internal Code */ |
||
367 |
/* */ |
||
368 |
/* RELEASE HISTORY */ |
||
369 |
/* */ |
||
370 |
/* DATE NAME DESCRIPTION */ |
||
371 |
/* */ |
||
372 |
/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
||
373 |
/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
||
374 |
/* resulting in version 6.1 */ |
||
375 |
/* */ |
||
376 |
/**************************************************************************/ |
||
377 |
628 |
static UINT _gx_utility_1555xrgb_pixelmap_alpha_rotate(GX_PIXELMAP *src, INT angle, GX_PIXELMAP *destination, INT *rot_cx, INT *rot_cy) |
|
378 |
{ |
||
379 |
USHORT *put; |
||
380 |
USHORT *get; |
||
381 |
GX_UBYTE *putalpha; |
||
382 |
GX_UBYTE *getalpha; |
||
383 |
INT srcxres; |
||
384 |
INT srcyres; |
||
385 |
INT cosv; |
||
386 |
INT sinv; |
||
387 |
USHORT red, green, blue; |
||
388 |
INT idxminx, idxmaxx, idxmaxy; |
||
389 |
INT *mx; |
||
390 |
INT *my; |
||
391 |
INT xres; |
||
392 |
INT yres; |
||
393 |
INT width, height; |
||
394 |
INT x, y; |
||
395 |
INT xx, yy; |
||
396 |
USHORT a, b, c, d; |
||
397 |
USHORT alpha[4]; |
||
398 |
INT xdiff, ydiff; |
||
399 |
|||
400 |
628 |
idxminx = (angle / 90) & 0x3; |
|
401 |
628 |
idxmaxx = (idxminx + 2) & 0x3; |
|
402 |
628 |
idxmaxy = (idxminx + 1) & 0x3; |
|
403 |
|||
404 |
628 |
mx = _gx_system_scratchpad; |
|
405 |
628 |
my = mx + 4; |
|
406 |
|||
407 |
628 |
mx[0] = mx[3] = -1; |
|
408 |
628 |
mx[1] = mx[2] = 1; |
|
409 |
|||
410 |
628 |
my[0] = my[1] = 1; |
|
411 |
628 |
my[2] = my[3] = -1; |
|
412 |
|||
413 |
/* Calculate the source x and y center. */ |
||
414 |
628 |
srcxres = src -> gx_pixelmap_width >> 1; |
|
415 |
628 |
srcyres = src -> gx_pixelmap_height >> 1; |
|
416 |
|||
417 |
628 |
cosv = _gx_utility_math_cos(GX_FIXED_VAL_MAKE(angle)); |
|
418 |
628 |
sinv = _gx_utility_math_sin(GX_FIXED_VAL_MAKE(angle)); |
|
419 |
|||
420 |
628 |
xres = mx[idxmaxx] * (srcxres + 2) * cosv - my[idxmaxx] * (srcyres + 2) * sinv; |
|
421 |
628 |
yres = my[idxmaxy] * (srcyres + 2) * cosv + mx[idxmaxy] * (srcxres + 2) * sinv; |
|
422 |
|||
423 |
628 |
xres = GX_FIXED_VAL_TO_INT(xres); |
|
424 |
628 |
yres = GX_FIXED_VAL_TO_INT(yres); |
|
425 |
|||
426 |
/* Calculate destination width and height. */ |
||
427 |
628 |
width = (xres << 1); |
|
428 |
628 |
height = (yres << 1); |
|
429 |
|||
430 |
/* Calculate the new rotation axis. */ |
||
431 |
✓✓✓✓ |
628 |
if (rot_cx && rot_cy) |
432 |
{ |
||
433 |
624 |
x = ((*rot_cx) - srcxres) * cosv - ((*rot_cy) - srcyres) * sinv; |
|
434 |
624 |
y = ((*rot_cy) - srcyres) * cosv + ((*rot_cx) - srcxres) * sinv; |
|
435 |
|||
436 |
624 |
srcxres = *rot_cx; |
|
437 |
624 |
srcyres = *rot_cy; |
|
438 |
|||
439 |
624 |
x = GX_FIXED_VAL_TO_INT(x) + xres; |
|
440 |
624 |
y = GX_FIXED_VAL_TO_INT(y) + yres; |
|
441 |
|||
442 |
624 |
*rot_cx = x; |
|
443 |
624 |
*rot_cy = y; |
|
444 |
|||
445 |
624 |
xres = *rot_cx; |
|
446 |
624 |
yres = *rot_cy; |
|
447 |
} |
||
448 |
|||
449 |
628 |
destination -> gx_pixelmap_height = (GX_VALUE)height; |
|
450 |
628 |
destination -> gx_pixelmap_width = (GX_VALUE)width; |
|
451 |
628 |
destination -> gx_pixelmap_flags |= GX_PIXELMAP_ALPHA; |
|
452 |
|||
453 |
/* Safe int math is not required here, calling function limits max width, height to 14 bits so |
||
454 |
overflow cannot occur. */ |
||
455 |
628 |
destination -> gx_pixelmap_data_size = (UINT)(height * width) * sizeof(USHORT); |
|
456 |
628 |
destination -> gx_pixelmap_data = (GX_UBYTE *)_gx_system_memory_allocator(destination -> gx_pixelmap_data_size); |
|
457 |
|||
458 |
✓✓ | 628 |
if (destination -> gx_pixelmap_data == GX_NULL) |
459 |
{ |
||
460 |
2 |
return GX_SYSTEM_MEMORY_ERROR; |
|
461 |
} |
||
462 |
|||
463 |
/* Safe int math is not required here, calling function limits max width, height to 14 bits so |
||
464 |
overflow cannot occur. */ |
||
465 |
626 |
destination -> gx_pixelmap_aux_data_size = (UINT)(height * width) * sizeof(GX_UBYTE); |
|
466 |
626 |
destination -> gx_pixelmap_aux_data = (GX_UBYTE *)_gx_system_memory_allocator(destination -> gx_pixelmap_aux_data_size); |
|
467 |
|||
468 |
✓✓ | 626 |
if (destination -> gx_pixelmap_aux_data == GX_NULL) |
469 |
{ |
||
470 |
2 |
_gx_system_memory_free((VOID *)destination -> gx_pixelmap_data); |
|
471 |
|||
472 |
2 |
return GX_SYSTEM_MEMORY_ERROR; |
|
473 |
} |
||
474 |
|||
475 |
624 |
put = (USHORT *)destination -> gx_pixelmap_data; |
|
476 |
624 |
putalpha = (GX_UBYTE *)destination -> gx_pixelmap_aux_data; |
|
477 |
|||
478 |
/* Loop through the destination's pixels. */ |
||
479 |
✓✓ | 165808 |
for (y = 0; y < height; y++) |
480 |
{ |
||
481 |
✓✓ | 45591232 |
for (x = 0; x < width; x++) |
482 |
{ |
||
483 |
45426048 |
xx = (x - xres) * cosv + (y - yres) * sinv; |
|
484 |
45426048 |
yy = (y - yres) * cosv - (x - xres) * sinv; |
|
485 |
|||
486 |
45426048 |
xdiff = GX_FIXED_VAL_TO_INT(xx << 8) & 0xff; |
|
487 |
45426048 |
ydiff = GX_FIXED_VAL_TO_INT(yy << 8) & 0xff; |
|
488 |
|||
489 |
45426048 |
xx = GX_FIXED_VAL_TO_INT(xx); |
|
490 |
45426048 |
yy = GX_FIXED_VAL_TO_INT(yy); |
|
491 |
|||
492 |
45426048 |
xx += srcxres; |
|
493 |
45426048 |
yy += srcyres; |
|
494 |
|||
495 |
✓✓✓✓ ✓✓ |
45426048 |
if ((xx >= -1) && (xx < src -> gx_pixelmap_width) && |
496 |
✓✓ | 30252029 |
(yy >= -1) && (yy < src -> gx_pixelmap_height)) |
497 |
{ |
||
498 |
|||
499 |
✓✓✓✓ ✓✓ |
26090648 |
if ((xx >= 0) && (xx < src -> gx_pixelmap_width - 1) && |
500 |
✓✓ | 25701980 |
(yy >= 0) && (yy < src -> gx_pixelmap_height - 1)) |
501 |
{ |
||
502 |
25584900 |
get = (USHORT *)src -> gx_pixelmap_data; |
|
503 |
25584900 |
get += yy * src -> gx_pixelmap_width; |
|
504 |
25584900 |
get += xx; |
|
505 |
|||
506 |
25584900 |
getalpha = (GX_UBYTE *)src -> gx_pixelmap_aux_data; |
|
507 |
25584900 |
getalpha += yy * src -> gx_pixelmap_width; |
|
508 |
25584900 |
getalpha += xx; |
|
509 |
|||
510 |
25584900 |
a = *get; |
|
511 |
25584900 |
alpha[0] = *getalpha; |
|
512 |
|||
513 |
25584900 |
b = *(get + 1); |
|
514 |
25584900 |
alpha[1] = *(getalpha + 1); |
|
515 |
|||
516 |
25584900 |
c = *(get + src -> gx_pixelmap_width); |
|
517 |
25584900 |
alpha[2] = *(getalpha + src -> gx_pixelmap_width); |
|
518 |
|||
519 |
25584900 |
d = *(get + src -> gx_pixelmap_width + 1); |
|
520 |
25584900 |
alpha[3] = *(getalpha + src -> gx_pixelmap_width + 1); |
|
521 |
} |
||
522 |
else |
||
523 |
{ |
||
524 |
505748 |
get = (USHORT *)src -> gx_pixelmap_data; |
|
525 |
505748 |
getalpha = (GX_UBYTE *)src -> gx_pixelmap_aux_data; |
|
526 |
|||
527 |
505748 |
a = 0; |
|
528 |
505748 |
b = 0; |
|
529 |
505748 |
c = 0; |
|
530 |
505748 |
d = 0; |
|
531 |
|||
532 |
✓✓ | 505748 |
if (xx == -1) |
533 |
{ |
||
534 |
/* handle left edge. */ |
||
535 |
✓✓ | 135504 |
if (yy >= 0) |
536 |
{ |
||
537 |
134948 |
b = *(get + yy * src -> gx_pixelmap_width); |
|
538 |
134948 |
alpha[1] = *(getalpha + yy * src -> gx_pixelmap_width); |
|
539 |
} |
||
540 |
|||
541 |
✓✓ | 135504 |
if (yy < src -> gx_pixelmap_height - 1) |
542 |
{ |
||
543 |
134952 |
d = *(get + (yy + 1) * src -> gx_pixelmap_width); |
|
544 |
134952 |
alpha[3] = *(getalpha + (yy + 1) * src -> gx_pixelmap_width); |
|
545 |
} |
||
546 |
} |
||
547 |
✓✓ | 370244 |
else if (yy == -1) |
548 |
{ |
||
549 |
/* handle top edge. */ |
||
550 |
117716 |
c = *(get + xx); |
|
551 |
117716 |
alpha[2] = *(getalpha + xx); |
|
552 |
|||
553 |
✓✓ | 117716 |
if (xx < src -> gx_pixelmap_width - 1) |
554 |
{ |
||
555 |
117160 |
d = *(get + xx + 1); |
|
556 |
117160 |
alpha[3] = *(getalpha + xx + 1); |
|
557 |
} |
||
558 |
} |
||
559 |
✓✓ | 252528 |
else if (xx == src -> gx_pixelmap_width - 1) |
560 |
{ |
||
561 |
/* handle right edget. */ |
||
562 |
135448 |
a = *(get + yy * src -> gx_pixelmap_width + xx); |
|
563 |
135448 |
alpha[0] = *(getalpha + yy * src -> gx_pixelmap_width + xx); |
|
564 |
|||
565 |
✓✓ | 135448 |
if (yy < src -> gx_pixelmap_height - 1) |
566 |
{ |
||
567 |
134628 |
c = *(get + (yy + 1) * src -> gx_pixelmap_width + xx); |
|
568 |
134628 |
alpha[2] = *(getalpha + (yy + 1) * src -> gx_pixelmap_width + xx); |
|
569 |
} |
||
570 |
} |
||
571 |
else |
||
572 |
{ |
||
573 |
/* handle bottom edge. */ |
||
574 |
117080 |
a = *(get + yy * src -> gx_pixelmap_width + xx); |
|
575 |
117080 |
alpha[0] = *(getalpha + yy * src -> gx_pixelmap_width + xx); |
|
576 |
|||
577 |
117080 |
b = *(get + yy * src -> gx_pixelmap_width + xx + 1); |
|
578 |
117080 |
alpha[1] = *(getalpha + yy * src -> gx_pixelmap_width + xx + 1); |
|
579 |
} |
||
580 |
|||
581 |
✓✓ | 505748 |
if (!a) |
582 |
{ |
||
583 |
253220 |
alpha[0] = 0; |
|
584 |
} |
||
585 |
|||
586 |
✓✓ | 505748 |
if (!b) |
587 |
{ |
||
588 |
253720 |
alpha[1] = 0; |
|
589 |
} |
||
590 |
|||
591 |
✓✓ | 505748 |
if (!c) |
592 |
{ |
||
593 |
253404 |
alpha[2] = 0; |
|
594 |
} |
||
595 |
|||
596 |
✓✓ | 505748 |
if (!d) |
597 |
{ |
||
598 |
253636 |
alpha[3] = 0; |
|
599 |
} |
||
600 |
} |
||
601 |
|||
602 |
26090648 |
red = (USHORT)((REDVAL(a) * alpha[0] * (256 - xdiff) * (256 - ydiff) + \ |
|
603 |
26090648 |
REDVAL(b) * alpha[1] * xdiff * (256 - ydiff) + \ |
|
604 |
26090648 |
REDVAL(c) * alpha[2] * ydiff * (256 - xdiff) + \ |
|
605 |
26090648 |
REDVAL(d) * alpha[3] * xdiff * ydiff) >> 16); |
|
606 |
|||
607 |
26090648 |
green = (USHORT)((GREENVAL(a) * alpha[0] * (256 - xdiff) * (256 - ydiff) + \ |
|
608 |
26090648 |
GREENVAL(b) * alpha[1] * xdiff * (256 - ydiff) + \ |
|
609 |
26090648 |
GREENVAL(c) * alpha[2] * ydiff * (256 - xdiff) + \ |
|
610 |
26090648 |
GREENVAL(d) * alpha[3] * xdiff * ydiff) >> 16); |
|
611 |
|||
612 |
26090648 |
blue = (USHORT)((BLUEVAL(a) * alpha[0] * (256 - xdiff) * (256 - ydiff) + \ |
|
613 |
26090648 |
BLUEVAL(b) * alpha[1] * xdiff * (256 - ydiff) + \ |
|
614 |
26090648 |
BLUEVAL(c) * alpha[2] * ydiff * (256 - xdiff) + \ |
|
615 |
26090648 |
BLUEVAL(d) * alpha[3] * xdiff * ydiff) >> 16); |
|
616 |
|||
617 |
26090648 |
alpha[0] = (USHORT)((alpha[0] * (256 - xdiff) * (256 - ydiff) + \ |
|
618 |
26090648 |
alpha[1] * xdiff * (256 - ydiff) + \ |
|
619 |
26090648 |
alpha[2] * ydiff * (256 - xdiff) + \ |
|
620 |
26090648 |
alpha[3] * xdiff * ydiff) >> 16); |
|
621 |
|||
622 |
✓✓ | 26090648 |
if (alpha[0]) |
623 |
{ |
||
624 |
16453188 |
red /= alpha[0]; |
|
625 |
16453188 |
green /= alpha[0]; |
|
626 |
16453188 |
blue /= alpha[0]; |
|
627 |
} |
||
628 |
|||
629 |
26090648 |
red = red > 31 ? 31 : red; |
|
630 |
26090648 |
green = green > 63 ? 63 : green; |
|
631 |
26090648 |
blue = blue > 31 ? 31 : blue; |
|
632 |
|||
633 |
26090648 |
*put++ = ASSEMBLECOLOR(red, green, blue); |
|
634 |
26090648 |
*putalpha++ = (GX_UBYTE)alpha[0]; |
|
635 |
} |
||
636 |
else |
||
637 |
{ |
||
638 |
19335400 |
put++; |
|
639 |
19335400 |
*putalpha++ = 0; |
|
640 |
} |
||
641 |
} |
||
642 |
} |
||
643 |
|||
644 |
624 |
return GX_SUCCESS; |
|
645 |
} |
||
646 |
|||
647 |
/**************************************************************************/ |
||
648 |
/* */ |
||
649 |
/* FUNCTION RELEASE */ |
||
650 |
/* */ |
||
651 |
/* _gx_utility_1555xrgb_pixelmap_rotate PORTABLE C */ |
||
652 |
/* 6.1 */ |
||
653 |
/* AUTHOR */ |
||
654 |
/* */ |
||
655 |
/* Kenneth Maxwell, Microsoft Corporation */ |
||
656 |
/* */ |
||
657 |
/* DESCRIPTION */ |
||
658 |
/* */ |
||
659 |
/* This function rotates an 1555xrgb format uncompressed pixelmap with */ |
||
660 |
/* or without alpha channel. */ |
||
661 |
/* */ |
||
662 |
/* INPUT */ |
||
663 |
/* */ |
||
664 |
/* src The pixelmap to be rotated */ |
||
665 |
/* angle The angle to be rotated */ |
||
666 |
/* destination The rotated bitmap to be */ |
||
667 |
/* returned */ |
||
668 |
/* rot_cx X coordinate of rotation */ |
||
669 |
/* center */ |
||
670 |
/* rot_cy Y coordinate of rotation */ |
||
671 |
/* center */ |
||
672 |
/* */ |
||
673 |
/* OUTPUT */ |
||
674 |
/* */ |
||
675 |
/* status Completion status */ |
||
676 |
/* */ |
||
677 |
/* CALLS */ |
||
678 |
/* */ |
||
679 |
/* _gx_utility_1555xrgb_pixelmap_raw_rotate */ |
||
680 |
/* Rotate 1555xrgb format */ |
||
681 |
/* pixlemap without alpha */ |
||
682 |
/* _gx_utility_1555xrgb_pixelmap_alpha_rotate */ |
||
683 |
/* Rotate 1555xrgb format */ |
||
684 |
/* pixelmap with alpha */ |
||
685 |
/* */ |
||
686 |
/* CALLED BY */ |
||
687 |
/* */ |
||
688 |
/* GUIX Internal Code */ |
||
689 |
/* */ |
||
690 |
/* RELEASE HISTORY */ |
||
691 |
/* */ |
||
692 |
/* DATE NAME DESCRIPTION */ |
||
693 |
/* */ |
||
694 |
/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
||
695 |
/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
||
696 |
/* resulting in version 6.1 */ |
||
697 |
/* */ |
||
698 |
/**************************************************************************/ |
||
699 |
988 |
UINT _gx_utility_1555xrgb_pixelmap_rotate(GX_PIXELMAP *src, INT angle, GX_PIXELMAP *destination, INT *rot_cx, INT *rot_cy) |
|
700 |
{ |
||
701 |
UINT status; |
||
702 |
|||
703 |
✓✓ | 988 |
if (src -> gx_pixelmap_flags & GX_PIXELMAP_ALPHA) |
704 |
{ |
||
705 |
/* alpha, no compression */ |
||
706 |
628 |
status = _gx_utility_1555xrgb_pixelmap_alpha_rotate(src, angle, destination, rot_cx, rot_cy); |
|
707 |
} |
||
708 |
else |
||
709 |
{ |
||
710 |
/* no compression or alpha */ |
||
711 |
360 |
status = _gx_utility_1555xrgb_pixelmap_raw_rotate(src, angle, destination, rot_cx, rot_cy); |
|
712 |
} |
||
713 |
|||
714 |
988 |
return status; |
|
715 |
} |
||
716 |
| Generated by: GCOVR (Version 4.1) |