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annotate packages/devs/framebuf/synth/current/misc/example.c @ 2566:2063ee669faf

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Contribute eCosCentric's synthetic target framebuffer device driver.
author bartv
date Tue, 07 Oct 2008 21:10:17 +0000
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children 74dbf4c3f2e1
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2566
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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1 //==========================================================================
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2 //
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3 // example.c
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4 //
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5 // Demonstration of the synthetic target framebuffer capabilities
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6 //
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7 //==========================================================================
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8 //###ECOSGPLCOPYRIGHTBEGIN####
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9 //-------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 2008 Free Software Foundation, Inc.
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12 // eCos is free software; you can redistribute it and/or modify it under
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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13 // the terms of the GNU General Public License as published by the Free
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14 // Software Foundation; either version 2 or (at your option) any later version.
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15 //
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16 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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17 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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18 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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19 // for more details.
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20 //
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21 // You should have received a copy of the GNU General Public License along
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22 // with eCos; if not, write to the Free Software Foundation, Inc.,
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23 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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24 //
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25 // As a special exception, if other files instantiate templates or use macros
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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26 // or inline functions from this file, or you compile this file and link it
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27 // with other works to produce a work based on this file, this file does not
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28 // by itself cause the resulting work to be covered by the GNU General Public
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29 // License. However the source code for this file must still be made available
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30 // in accordance with section (3) of the GNU General Public License.
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31 //
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32 // This exception does not invalidate any other reasons why a work based on
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33 // this file might be covered by the GNU General Public License.
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34 // -------------------------------------------
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35 //####ECOSGPLCOPYRIGHTEND####
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36 //==========================================================================
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37 //###DESCRIPTIONBEGIN####
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38 //
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39 // Author(s): bartv
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40 // Date: 2008-10-06
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41 //
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42 //###DESCRIPTIONEND####
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43 //========================================================================
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44
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45 #include <cyg/infra/cyg_type.h>
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46 #include <cyg/infra/diag.h>
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47 #include <cyg/hal/hal_arch.h>
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48 #include <cyg/io/framebuf.h>
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49 #include <cyg/kernel/kapi.h>
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50 #include <string.h>
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51 #include <stdio.h>
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52
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53 #define BLACK colours[0x00]
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54 #define BLUE colours[0x01]
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55 #define GREEN colours[0x02]
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56 #define CYAN colours[0x03]
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57 #define RED colours[0x04]
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58 #define MAGENTA colours[0x05]
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59 #define BROWN colours[0x06]
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60 #define LIGHTGREY colours[0x07]
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61 #define DARKGREY colours[0x08]
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62 #define LIGHTBLUE colours[0x09]
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63 #define LIGHTGREEN colours[0x0A]
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64 #define LIGHTCYAN colours[0x0B]
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65 #define LIGHTRED colours[0x0C]
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66 #define LIGHTMAGENTA colours[0x0D]
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67 #define YELLOW colours[0x0E]
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68 #define WHITE colours[0x0F]
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69
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70 // ----------------------------------------------------------------------------
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71 // FB0. 320x240 32bpp true 0888. Just draw a simple image as per the fb.c
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72 // example and return to main().
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73
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74 static void
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75 fb0_thread(cyg_addrword_t arg)
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76 {
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77 #define FRAMEBUF cyg_synth_fb0
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78 static cyg_ucount32 colours[16];
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79 cyg_ucount16 block_width;
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80 int i;
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81
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82 for (i = 0; i < 16; i++) {
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83 colours[i] = cyg_fb_make_colour(&FRAMEBUF,
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84 cyg_fb_palette_vga[i + i + i], cyg_fb_palette_vga[i + i + i + 1],cyg_fb_palette_vga[i + i + i + 2]);
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85 }
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86
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87 cyg_fb_on(&FRAMEBUF);
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88 // A white background
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89 cyg_fb_fill_block(&FRAMEBUF, 0, 0, FRAMEBUF.fb_width, FRAMEBUF.fb_height, WHITE);
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90 // A black block in the middle, 25 pixels in.
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91 cyg_fb_fill_block(&FRAMEBUF, 25, 25, FRAMEBUF.fb_width - 50, FRAMEBUF.fb_height - 50, BLACK);
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92
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93 // Four diagonal lines in the corners. Red in the top left, blue in the top right,
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94 // green in the bottom left, and yellow in the bottom right.
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95 for (i = 0; i < 25; i++) {
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96 cyg_fb_write_pixel(&FRAMEBUF, i, i, RED);
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97 cyg_fb_write_pixel(&FRAMEBUF, (FRAMEBUF.fb_width - 1) - i, i, BLUE);
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98 cyg_fb_write_pixel(&FRAMEBUF, i, (FRAMEBUF.fb_height - 1) - i, GREEN);
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99 cyg_fb_write_pixel(&FRAMEBUF, (FRAMEBUF.fb_width - 1) - i, (FRAMEBUF.fb_height - 1) - i, YELLOW);
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100 }
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101
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102 // Horizontal and vertical lines. Cyan at the top, magenta on the bottom,
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103 // brown on the left, lightgrey on the right.
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104 cyg_fb_write_hline(&FRAMEBUF, 25, 12, FRAMEBUF.fb_width - 50, CYAN);
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105 cyg_fb_write_hline(&FRAMEBUF, 25, FRAMEBUF.fb_height - 12, FRAMEBUF.fb_width - 50, MAGENTA);
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106 cyg_fb_write_vline(&FRAMEBUF, 12, 25, FRAMEBUF.fb_height - 50, BROWN);
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107 cyg_fb_write_vline(&FRAMEBUF, FRAMEBUF.fb_width - 12, 25, FRAMEBUF.fb_height - 50, LIGHTGREY);
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108
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109 // And 14 vertical stripes, from blue to yellow, in the centre of the box.
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110 block_width = (FRAMEBUF.fb_width - 100) / 14;
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111 for (i = 1; i <= 14; i++) {
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112 cyg_fb_fill_block(&FRAMEBUF, 50 + ((i - 1) * block_width), 50, block_width, FRAMEBUF.fb_height - 100, colours[i]);
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113 }
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114
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115 cyg_fb_synch(&FRAMEBUF, CYG_FB_UPDATE_NOW);
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116 #undef FRAMEBUF
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117 }
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118
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119 // ----------------------------------------------------------------------------
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120 // FB1, 320x240 15bpp, true 555, two pages. Draw a set of horizontal lines
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121 // in one page, vertical lines in the other, and flip between them at
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122 // one second intervals.
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123
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124 static void
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125 fb1_thread(cyg_addrword_t arg)
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126 {
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127 #define FRAMEBUF cyg_synth_fb1
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128 static cyg_ucount32 colours[16];
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129 struct cyg_fb_ioctl_page_flip page_flip;
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130 size_t len;
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131 int result;
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132 int i;
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133
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134 cyg_fb_on(&FRAMEBUF);
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135 for (i = 0; i < 16; i++) {
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136 colours[i] = cyg_fb_make_colour(&FRAMEBUF,
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137 cyg_fb_palette_vga[i + i + i], cyg_fb_palette_vga[i + i + i + 1],cyg_fb_palette_vga[i + i + i + 2]);
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138 }
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139
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140 // Draw the horizontal stripes on page 0.
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141 page_flip.fbpf_visible_page = 0;
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142 page_flip.fbpf_drawable_page = 1;
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143 page_flip.fbpf_when = CYG_FB_UPDATE_NOW;
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144 len = sizeof(page_flip);
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145 result = cyg_fb_ioctl(&FRAMEBUF, CYG_FB_IOCTL_PAGE_FLIPPING_SET_PAGES, &page_flip, &len);
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146 if (result != 0) {
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147 fprintf(stderr, "fb1_thread: initial page flip failed.\n");
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148 }
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149 // 16 colours, 240 rows -> 15 rows/colour
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150 for (i = 0; i < 16; i++) {
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151 cyg_fb_fill_block(&FRAMEBUF, 0, 15 * i, 320, 15, colours[i]);
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152 }
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153
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154 // Show the horizontal stripes and draw the vertical stripes on page 0.
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155 page_flip.fbpf_visible_page = 1;
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156 page_flip.fbpf_drawable_page = 0;
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157 page_flip.fbpf_when = CYG_FB_UPDATE_NOW;
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158 len = sizeof(page_flip);
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159 result = cyg_fb_ioctl(&FRAMEBUF, CYG_FB_IOCTL_PAGE_FLIPPING_SET_PAGES, &page_flip, &len);
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160 if (result != 0) {
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161 fprintf(stderr, "fb1_thread: second page flip failed.\n");
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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162 }
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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163 // 16 colours, 320 columns -> 20 columns/colour
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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164 for (i = 0; i < 16; i++) {
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165 cyg_fb_fill_block(&FRAMEBUF, 20 * i, 0, 20, 240, colours[i]);
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166 }
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167
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168 for ( i = 0; ; i = 1 - i) {
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169 page_flip.fbpf_visible_page = i;
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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170 page_flip.fbpf_drawable_page = 1 - i;
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171 page_flip.fbpf_when = CYG_FB_UPDATE_NOW;
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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172 len = sizeof(page_flip);
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173 result = cyg_fb_ioctl(&FRAMEBUF, CYG_FB_IOCTL_PAGE_FLIPPING_SET_PAGES, &page_flip, &len);
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174 if (result != 0) {
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175 fprintf(stderr, "fb1_thread: ongoing page flip failed.\n");
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176 }
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177 cyg_thread_delay(100);
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178 }
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179 #undef FRAMEBUF
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180 }
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181
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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182 // ----------------------------------------------------------------------------
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183 // FB2, 320x240 15bpp, true 565, with a 160x120 viewport. Draw a simple image
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184 // as per the fbmacro.c example. Then move around within the viewport in a
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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185 // clockwise direction at 110ms intervals.
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186
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187 static void
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188 fb2_thread(cyg_addrword_t arg)
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189 {
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190 #define FRAMEBUF fb2
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191 #define WIDTH 320
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192 #define HEIGHT 240
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193
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194 static cyg_ucount32 colours[16];
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195 cyg_ucount16 block_width;
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196 int i, j;
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197 int x = 0, y = 0;
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198 CYG_FB_PIXEL0_VAR(FRAMEBUF);
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199 CYG_FB_PIXEL1_VAR(FRAMEBUF);
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200 cyg_fb_ioctl_viewport viewport;
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201 size_t len;
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202
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203 CYG_FB_ON(FRAMEBUF);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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204 for (i = 0; i < 16; i++) {
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205 colours[i] = CYG_FB_MAKE_COLOUR(FRAMEBUF,
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206 cyg_fb_palette_vga[i + i + i], cyg_fb_palette_vga[i + i + i + 1],cyg_fb_palette_vga[i + i + i + 2]);
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207 }
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208 // A white background
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209 CYG_FB_FILL_BLOCK(FRAMEBUF, 0, 0, WIDTH, HEIGHT, WHITE);
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210 // A black block in the middle, 25 pixels in.
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211 CYG_FB_FILL_BLOCK(FRAMEBUF, 32, 32, WIDTH - 64, HEIGHT - 64, BLACK);
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212
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213 // Four diagonal lines in the corners. Red in the top left, blue in the top right,
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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214 // green in the bottom left, and yellow in the bottom right.
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215 for (i = 0; i < 32; i++) {
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216 CYG_FB_WRITE_PIXEL(FRAMEBUF, i, i, RED);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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217 CYG_FB_WRITE_PIXEL(FRAMEBUF, (WIDTH - 1) - i, i, BLUE);
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218 CYG_FB_WRITE_PIXEL(FRAMEBUF, i, (HEIGHT - 1) - i, GREEN);
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219 CYG_FB_WRITE_PIXEL(FRAMEBUF, (WIDTH - 1) - i, (HEIGHT - 1) - i, YELLOW);
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220 }
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221
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222 // Horizontal and vertical lines. Cyan at the top, magenta on the bottom,
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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223 // brown on the left, lightgrey on the right.
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224 CYG_FB_WRITE_HLINE(FRAMEBUF, 32, 16, WIDTH - 64, CYAN);
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225 CYG_FB_WRITE_HLINE(FRAMEBUF, 32, HEIGHT - 16, WIDTH - 64, MAGENTA);
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226 CYG_FB_WRITE_VLINE(FRAMEBUF, 16, 32, HEIGHT - 64, BROWN);
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227 CYG_FB_WRITE_VLINE(FRAMEBUF, WIDTH - 16, 32, HEIGHT - 64, LIGHTGREY);
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228
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229 // Top left, diagonal lines away from 0,0 with increasing spacing horizontally
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230 for (i = 0; i < 16; i++) {
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231 CYG_FB_PIXEL0_SET(FRAMEBUF, i + 16, i);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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232 for (j = 0; j < 16; j++) {
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233 CYG_FB_PIXEL0_WRITE(FRAMEBUF, colours[i]);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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234 CYG_FB_PIXEL0_ADDX(FRAMEBUF, j);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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235 }
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236 }
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237
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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238 // Top right, diagonal lines away from the corner, with increasing spacing horizontally
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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239 for (i = 0; i < 16; i++) {
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240 CYG_FB_PIXEL0_SET(FRAMEBUF, WIDTH - (i + 16), i);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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241 for (j = 0; j < 16; j++) {
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242 CYG_FB_PIXEL0_WRITE(FRAMEBUF, colours[i]);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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243 CYG_FB_PIXEL0_ADDX(FRAMEBUF, -1 * j);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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244 }
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245 }
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246
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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247 // Top left, diagonal lines away from the corner, with increasing spacing vertically
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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248 for (i = 0; i < 16; i++) {
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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249 CYG_FB_PIXEL0_SET(FRAMEBUF, i, i + 16);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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250 for (j = 0; j < 16; j++) {
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251 CYG_FB_PIXEL0_WRITE(FRAMEBUF, colours[i]);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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252 CYG_FB_PIXEL0_ADDY(FRAMEBUF, j);
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253 }
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254 }
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255 // Bottom left, diagonal lines away from the corner, with increasing spacing vertically
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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256 for (i = 0; i < 16; i++) {
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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257 CYG_FB_PIXEL0_SET(FRAMEBUF, i, HEIGHT - (i + 16));
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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258 for (j = 0; j < 16; j++) {
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259 CYG_FB_PIXEL0_WRITE(FRAMEBUF, colours[i]);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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260 CYG_FB_PIXEL0_ADDY(FRAMEBUF, -1 * j);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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261 }
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262 }
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263
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264 // Thin vertical bars in the top-middle of the screen, between the hline and the box.
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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265 // Starting in the center and moving out with increasing spacing.
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266 for (j = 0; j < 8; j++) {
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267 CYG_FB_PIXEL0_SET(FRAMEBUF, (WIDTH / 2) - 2, 20 + j);
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268 CYG_FB_PIXEL0_GET(FRAMEBUF, x, y);
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269 CYG_FB_PIXEL1_SET(FRAMEBUF, x + 3, y);
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270 for (i = 0; i < 16; i++) {
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271 CYG_FB_PIXEL0_ADDX(FRAMEBUF, -1 * i);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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272 CYG_FB_PIXEL1_ADDX(FRAMEBUF, i);
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273 CYG_FB_PIXEL0_WRITE(FRAMEBUF, colours[i]);
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274 CYG_FB_PIXEL1_WRITE(FRAMEBUF, colours[i]);
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275 }
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276 }
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277
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278 block_width = (WIDTH - 100) / 14;
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279 for (i = 1; i <= 14; i++) {
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280 CYG_FB_FILL_BLOCK(FRAMEBUF, 50 + ((i - 1) * block_width), 50, block_width, HEIGHT - 100, colours[i]);
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281 }
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282
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283
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284 for ( ; ; ) {
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285 for (x = 0; x <= 160; x += 5) {
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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286 viewport.fbvp_x = x;
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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287 viewport.fbvp_y = 0;
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288 viewport.fbvp_when = CYG_FB_UPDATE_NOW;
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289 len = sizeof(viewport);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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290 CYG_FB_IOCTL(FRAMEBUF, CYG_FB_IOCTL_VIEWPORT_SET_POSITION, &viewport, &len);
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291 cyg_thread_delay(11);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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292 }
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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293 for (y = 0; y < 120; y += 5) {
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294 viewport.fbvp_x = 160;
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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295 viewport.fbvp_y = y;
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296 viewport.fbvp_when = CYG_FB_UPDATE_NOW;
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297 len = sizeof(viewport);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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298 CYG_FB_IOCTL(FRAMEBUF, CYG_FB_IOCTL_VIEWPORT_SET_POSITION, &viewport, &len);
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299 cyg_thread_delay(11);
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300 }
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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301 for (x = 160; x >= 0; x -= 5) {
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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302 viewport.fbvp_x = x;
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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303 viewport.fbvp_y = 120;
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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304 viewport.fbvp_when = CYG_FB_UPDATE_NOW;
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305 len = sizeof(viewport);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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306 CYG_FB_IOCTL(FRAMEBUF, CYG_FB_IOCTL_VIEWPORT_SET_POSITION, &viewport, &len);
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307 cyg_thread_delay(11);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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308 }
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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309 for (y = 120; y >= 0; y -= 5) {
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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310 viewport.fbvp_x = 0;
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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311 viewport.fbvp_y = y;
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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312 viewport.fbvp_when = CYG_FB_UPDATE_NOW;
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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313 len = sizeof(viewport);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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314 CYG_FB_IOCTL(FRAMEBUF, CYG_FB_IOCTL_VIEWPORT_SET_POSITION, &viewport, &len);
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315 cyg_thread_delay(11);
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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316 }
2063ee669faf Contribute eCosCentric's synthetic target framebuffer device driver.
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317 }
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318 #undef FRAMEBUF
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319 #undef WIDTH
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320 #undef HEIGHT
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321 }
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322
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323 // ----------------------------------------------------------------------------
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324 // FB3, 320x240 8bpp, paletted 888. Draw a series of vertical stripes, 5 pixels
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325 // wide, and rotate through the palette at 210ms intervals.
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326
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327 static void
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328 fb3_thread(cyg_addrword_t arg)
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329 {
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330 #define FRAMEBUF fb3
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331 static cyg_uint8 palette[(128 +16) * 3];
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332 int i;
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333
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334 CYG_FB_ON(FRAMEBUF);
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335
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336 // Read in the first 128 palette entries, and copy the first 16
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337 // entries to give a wrap-around. After 128 the palette gets less
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338 // interesting.
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339 CYG_FB_READ_PALETTE(FRAMEBUF, 0, 128, palette);
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340 memcpy(&(palette[128 * 3]), palette, 16 * 3);
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341
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342 for (i = 0; i < 32; i++) {
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343 CYG_FB_FILL_BLOCK(FRAMEBUF, 10 * i, 0, 10, 240, i);
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344 }
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345
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346 for ( i = 0; ; i = (i + 1) % 128 ) {
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347 cyg_thread_delay(21);
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348 CYG_FB_WRITE_PALETTE(FRAMEBUF, 0, 64, &(palette[i * 3]), CYG_FB_UPDATE_NOW);
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349 }
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350 #undef FRAMEBUF
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351 }
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352
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353 // ----------------------------------------------------------------------------
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354 // main(). Start up separate threads for FB1 and FB2, run the FB0 code since
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355 // it just does some drawing and finishes, then run the FB3 code.
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356 static cyg_thread fb1_thread_data;
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357 static cyg_handle_t fb1_thread_handle;
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358 static unsigned char fb1_thread_stack[CYGNUM_HAL_STACK_SIZE_TYPICAL];
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359 static cyg_thread fb2_thread_data;
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360 static cyg_handle_t fb2_thread_handle;
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361 static unsigned char fb2_thread_stack[CYGNUM_HAL_STACK_SIZE_TYPICAL];
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362
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363 int
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364 main(int argc, char** argv)
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365 {
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366 cyg_thread_create(10, &fb1_thread, 0, "fb1", fb1_thread_stack, CYGNUM_HAL_STACK_SIZE_TYPICAL, &fb1_thread_handle, &fb1_thread_data);
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367 cyg_thread_create(10, &fb2_thread, 0, "fb2", fb2_thread_stack, CYGNUM_HAL_STACK_SIZE_TYPICAL, &fb2_thread_handle, &fb2_thread_data);
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368 cyg_thread_resume(fb1_thread_handle);
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369 cyg_thread_resume(fb2_thread_handle);
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370 fb0_thread(0);
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371 fb3_thread(0);
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372 return 0;
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373 }
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374