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Rev | Author | Line No. | Line |
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425 | victor | 1 | $Revision: 536 $ |
431 | serge | 2 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
3 | ;; ;; |
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4 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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5 | ;; Distributed under terms of the GNU General Public License ;; |
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6 | ;; ;; |
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7 | ;; VESA20.INC ;; |
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8 | ;; ;; |
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9 | ;; Vesa 2.0 functions for MenuetOS ;; |
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10 | ;; ;; |
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11 | ;; Copyright 2002 Ville Turjanmaa ;; |
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12 | ;; Alexey, kgaz@crosswindws.net ;; |
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13 | ;; - Voodoo compatible graphics ;; |
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14 | ;; Juan M. Caravaca ;; |
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15 | ;; - Graphics optimimizations eg. drawline ;; |
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16 | ;; ;; |
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17 | ;; See file COPYING for details ;; |
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18 | ;; ;; |
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19 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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1 | ha | 20 | |
21 | ; If you're planning to write your own video driver I suggest |
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22 | ; you replace the VESA12.INC file and see those instructions. |
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23 | |||
381 | serge | 24 | ;ScreenWidth equ 0xfe00 |
25 | ;ScreenHeight equ 0xfe04 |
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26 | ;BytesPerScanLine equ 0xfe08 |
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27 | ;LFBAddress equ 0xfe80 |
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28 | ;ScreenBPP equ 0xfbf1 |
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29 | ;WinMapAddress equ 0x460000 |
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1 | ha | 30 | |
31 | |||
32 | |||
33 | ;************************************************* |
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34 | ; getpixel |
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35 | ; |
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36 | ; in: |
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37 | ; eax = x coordinate |
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38 | ; ebx = y coordinate |
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39 | ; |
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40 | ; ret: |
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41 | ; ecx = 00 RR GG BB |
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42 | |||
43 | getpixel: |
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469 | serge | 44 | push eax ebx edx edi |
45 | call dword [GETPIXEL] |
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46 | pop edi edx ebx eax |
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47 | ret |
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1 | ha | 48 | |
49 | Vesa20_getpixel24: |
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469 | serge | 50 | ; eax = x |
51 | ; ebx = y |
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52 | imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier |
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53 | lea edi, [eax+eax*2] ; edi = x*3 |
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54 | add edi, ebx ; edi = x*3+(y*y multiplier) |
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55 | add edi, [LFBAddress] ; ebx = where pixel is in memory |
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56 | mov ecx, [edi] |
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57 | and ecx, 0xffffff |
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58 | ret |
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1 | ha | 59 | |
60 | Vesa20_getpixel32: |
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469 | serge | 61 | imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier |
62 | lea edi, [ebx+eax*4] ; edi = x*4+(y*y multiplier) |
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63 | add edi, [LFBAddress] ; ebx = where pixel is in memory |
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64 | mov ecx, [edi] |
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65 | and ecx, 0xffffff |
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66 | ret |
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1 | ha | 67 | |
68 | ;************************************************* |
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69 | |||
70 | virtual at esp |
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71 | putimg: |
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72 | .real_sx dd ? |
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73 | .real_sy dd ? |
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74 | .image_sx dd ? |
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75 | .image_sy dd ? |
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76 | .image_cx dd ? |
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77 | .image_cy dd ? |
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78 | .pti dd ? |
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79 | .abs_cx dd ? |
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80 | .abs_cy dd ? |
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81 | .line_increment dd ? |
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82 | .winmap_newline dd ? |
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83 | .screen_newline dd ? |
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283 | diamond | 84 | .stack_data = 4*12 |
85 | .edi dd ? |
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86 | .esi dd ? |
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87 | .ebp dd ? |
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314 | diamond | 88 | .esp dd ? |
89 | .ebx dd ? |
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90 | .edx dd ? |
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91 | .ecx dd ? |
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92 | .eax dd ? |
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93 | .ret_addr dd ? |
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94 | .arg_0 dd ? |
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1 | ha | 95 | end virtual |
96 | |||
283 | diamond | 97 | align 16 |
1 | ha | 98 | ; ebx = pointer |
99 | ; ecx = size [x|y] |
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100 | ; edx = coordinates [x|y] |
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283 | diamond | 101 | ; ebp = pointer to 'get' function |
102 | ; esi = pointer to 'init' function |
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103 | ; edi = parameter for 'get' function |
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469 | serge | 104 | |
1 | ha | 105 | vesa20_putimage: |
469 | serge | 106 | pushad |
107 | call [disable_mouse] |
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108 | sub esp, putimg.stack_data |
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109 | ; save pointer to image |
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110 | mov [putimg.pti], ebx |
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111 | ; unpack the size |
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112 | mov eax, ecx |
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113 | and ecx, 0xFFFF |
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114 | shr eax, 16 |
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115 | mov [putimg.image_sx], eax |
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116 | mov [putimg.image_sy], ecx |
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117 | ; unpack the coordinates |
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118 | mov eax, edx |
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119 | and edx, 0xFFFF |
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120 | shr eax, 16 |
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121 | mov [putimg.image_cx], eax |
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122 | mov [putimg.image_cy], edx |
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123 | ; calculate absolute (i.e. screen) coordinates |
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124 | mov eax, [TASK_BASE] |
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125 | mov ebx, [eax-twdw + WDATA.box.left] |
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126 | add ebx, [putimg.image_cx] |
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127 | mov [putimg.abs_cx], ebx |
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128 | mov ebx, [eax-twdw + WDATA.box.top] |
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129 | add ebx, [putimg.image_cy] |
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130 | mov [putimg.abs_cy], ebx |
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131 | ; real_sx = MIN(wnd_sx-image_cx, image_sx); |
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132 | mov ebx, [eax-twdw + WDATA.box.width] ; ebx = wnd_sx |
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133 | diamond | 133 | ; \begin{diamond}[20.08.2006] |
134 | ; note that WDATA.box.width is one pixel less than real window x-size |
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469 | serge | 135 | inc ebx |
133 | diamond | 136 | ; \end{diamond}[20.08.2006] |
469 | serge | 137 | sub ebx, [putimg.image_cx] |
138 | ja @f |
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139 | add esp, putimg.stack_data |
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140 | popad |
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141 | ret |
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142 | @@: |
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143 | cmp ebx, [putimg.image_sx] |
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144 | jbe .end_x |
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145 | mov ebx, [putimg.image_sx] |
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146 | .end_x: |
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147 | mov [putimg.real_sx], ebx |
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148 | ; init real_sy |
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149 | mov ebx, [eax-twdw + WDATA.box.height] ; ebx = wnd_sy |
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133 | diamond | 150 | ; \begin{diamond}[20.08.2006] |
469 | serge | 151 | inc ebx |
133 | diamond | 152 | ; \end{diamond}[20.08.2006] |
469 | serge | 153 | sub ebx, [putimg.image_cy] |
154 | ja @f |
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155 | add esp, putimg.stack_data |
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156 | popad |
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157 | ret |
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158 | @@: |
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159 | cmp ebx, [putimg.image_sy] |
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160 | jbe .end_y |
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161 | mov ebx, [putimg.image_sy] |
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162 | .end_y: |
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163 | mov [putimg.real_sy], ebx |
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164 | ; line increment |
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165 | mov eax, [putimg.image_sx] |
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166 | sub eax, [putimg.real_sx] |
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167 | ;; imul eax, [putimg.source_bpp] |
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168 | ; lea eax, [eax + eax * 2] |
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169 | call esi |
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170 | add eax, [putimg.arg_0] |
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171 | mov [putimg.line_increment], eax |
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172 | ; winmap new line increment |
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173 | mov eax, [ScreenWidth] |
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174 | inc eax |
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175 | sub eax, [putimg.real_sx] |
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176 | mov [putimg.winmap_newline], eax |
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177 | ; screen new line increment |
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178 | mov eax, [BytesPerScanLine] |
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179 | mov ecx, [putimg.real_sx] |
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180 | movzx ebx, byte [ScreenBPP] |
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181 | shr ebx, 3 |
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182 | imul ecx, ebx |
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183 | sub eax, ecx |
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184 | mov [putimg.screen_newline], eax |
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185 | ; pointer to image |
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186 | mov esi, [putimg.pti] |
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187 | ; pointer to screen |
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188 | mov edx, [putimg.abs_cy] |
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189 | imul edx, [BytesPerScanLine] |
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190 | mov eax, [putimg.abs_cx] |
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191 | movzx ebx, byte [ScreenBPP] |
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192 | shr ebx, 3 |
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193 | imul eax, ebx |
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194 | add edx, eax |
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195 | add edx, [LFBAddress] |
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196 | ; pointer to pixel map |
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197 | mov eax, [putimg.abs_cy] |
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198 | imul eax, [ScreenWidth] |
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199 | add eax, [putimg.abs_cy] |
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200 | add eax, [putimg.abs_cx] |
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201 | add eax, WinMapAddress |
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202 | xchg eax, ebp |
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203 | ; get process number |
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204 | mov ebx, [CURRENT_TASK] |
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205 | cmp byte [ScreenBPP], 32 |
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206 | je put_image_end_32 |
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1 | ha | 207 | ;put_image_end_24: |
469 | serge | 208 | mov edi, [putimg.real_sy] |
209 | align 4 |
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210 | .new_line: |
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211 | mov ecx, [putimg.real_sx] |
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212 | ; push ebp edx |
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213 | align 4 |
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214 | .new_x: |
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215 | push [putimg.edi] |
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216 | mov eax, [putimg.ebp+4] |
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217 | call eax |
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218 | cmp [ebp], bl |
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219 | jne .skip |
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220 | ; mov eax, [esi] ; eax = RRBBGGRR |
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221 | mov [edx], ax |
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222 | shr eax, 16 |
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223 | mov [edx+2], al |
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224 | .skip: |
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225 | ; add esi, 3 ;[putimg.source_bpp] |
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226 | add edx, 3 |
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227 | inc ebp |
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228 | dec ecx |
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229 | jnz .new_x |
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230 | ; pop edx ebp |
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231 | add esi, [putimg.line_increment] |
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232 | add edx, [putimg.screen_newline] ;[BytesPerScanLine] |
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233 | add ebp, [putimg.winmap_newline] ;[ScreenWidth] |
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234 | ; inc ebp |
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235 | dec edi |
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236 | jnz .new_line |
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237 | .finish: |
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238 | add esp, putimg.stack_data |
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239 | popad |
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240 | ret |
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1 | ha | 241 | |
242 | put_image_end_32: |
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469 | serge | 243 | mov edi, [putimg.real_sy] |
244 | align 4 |
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245 | .new_line: |
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246 | mov ecx, [putimg.real_sx] |
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247 | ; push ebp edx |
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248 | align 4 |
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249 | .new_x: |
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250 | push [putimg.edi] |
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251 | mov eax, [putimg.ebp+4] |
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252 | call eax |
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253 | cmp [ebp], bl |
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254 | jne .skip |
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255 | ; mov eax, [esi] ; ecx = RRBBGGRR |
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256 | mov [edx], eax |
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257 | .skip: |
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258 | ; add esi, [putimg.source_bpp] |
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259 | add edx, 4 |
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260 | inc ebp |
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261 | dec ecx |
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262 | jnz .new_x |
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263 | ; pop edx ebp |
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264 | add esi, [putimg.line_increment] |
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265 | add edx, [putimg.screen_newline] ;[BytesPerScanLine] |
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266 | add ebp, [putimg.winmap_newline] ;[ScreenWidth] |
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267 | ; inc ebp |
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268 | dec edi |
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269 | jnz .new_line |
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270 | .finish: |
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271 | add esp, putimg.stack_data |
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272 | popad |
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273 | call VGA__putimage |
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274 | mov [EGA_counter],1 |
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275 | ret |
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1 | ha | 276 | |
277 | |||
278 | ;************************************************* |
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279 | align 4 |
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280 | __sys_putpixel: |
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281 | |||
282 | ; eax = x coordinate |
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283 | ; ebx = y coordinate |
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284 | ; ecx = ?? RR GG BB ; 0x01000000 negation |
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285 | ; edi = 0x00000001 force |
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286 | |||
287 | ;;; mov [novesachecksum], dword 0 |
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469 | serge | 288 | pushad |
289 | test edi,1 ; force ? |
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290 | jnz .forced |
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291 | ; not forced: |
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292 | push ecx ; save 24th bit in case negative pixel wanted |
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293 | call checkpixel |
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294 | test ecx,ecx |
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295 | pop ecx |
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296 | jnz .exit |
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297 | .forced: |
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298 | cmp [ScreenWidth], eax |
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299 | jb .exit |
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300 | cmp [ScreenHeight], ebx |
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301 | jb .exit |
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302 | .ok: |
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303 | ; check if negation |
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304 | test ecx,0x01000000 |
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305 | jz .noneg |
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306 | call getpixel |
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307 | not ecx |
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308 | mov [esp+32-8],ecx |
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309 | .noneg: |
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310 | ; OK to set pixel |
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311 | call dword [PUTPIXEL] ; call the real put_pixel function |
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312 | .exit: |
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313 | popad |
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314 | ret |
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1 | ha | 315 | |
316 | align 4 |
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317 | Vesa20_putpixel24: |
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469 | serge | 318 | ; eax = x |
319 | ; ebx = y |
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320 | imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier |
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321 | lea edi, [eax+eax*2] ; edi = x*3 |
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322 | mov eax, [esp+32-8+4] |
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323 | add edi, [LFBAddress] |
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324 | add edi, ebx ; ebx = where to put pixel in memory |
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325 | mov [edi], ax |
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326 | shr eax, 16 |
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327 | mov [edi+2], al |
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328 | ret |
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1 | ha | 329 | |
330 | |||
331 | align 4 |
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332 | Vesa20_putpixel32: |
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469 | serge | 333 | ; eax = x |
334 | ; ebx = y |
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335 | imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier |
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336 | lea edi, [ebx+eax*4] ; edi = x*4+(y*y multiplier) |
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337 | mov eax, [esp+32-8+4] ; eax = color |
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338 | add edi, [LFBAddress] ; ebx = where to put pixel in memory |
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339 | mov [edi], eax |
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340 | ret |
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1 | ha | 341 | |
342 | ;************************************************* |
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343 | |||
344 | ;align 4 |
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345 | calculate_edi: |
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469 | serge | 346 | mov edi, ebx |
347 | imul edi, [ScreenWidth] |
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348 | add edi, ebx |
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349 | add edi, eax |
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350 | ret |
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1 | ha | 351 | |
352 | ;************************************************* |
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353 | |||
354 | ; DRAWLINE |
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355 | |||
356 | align 4 |
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357 | __sys_draw_line: |
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36 | mario79 | 358 | ; inc [mouse_pause] |
469 | serge | 359 | call [disable_mouse] |
1 | ha | 360 | |
361 | ; draw a line |
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362 | ; eax = HIWORD = x1 |
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363 | ; LOWORD = x2 |
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364 | ; ebx = HIWORD = y1 |
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365 | ; LOWORD = y2 |
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366 | ; ecx = color |
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367 | ; edi = force ? |
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368 | pusha |
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369 | |||
370 | dl_x1 equ esp+20 |
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371 | dl_y1 equ esp+16 |
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372 | dl_x2 equ esp+12 |
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373 | dl_y2 equ esp+8 |
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374 | dl_dx equ esp+4 |
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375 | dl_dy equ esp+0 |
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376 | |||
469 | serge | 377 | xor edx, edx ; clear edx |
378 | xor esi, esi ; unpack arguments |
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379 | xor ebp, ebp |
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380 | mov si, ax ; esi = x2 |
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381 | mov bp, bx ; ebp = y2 |
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382 | shr eax, 16 ; eax = x1 |
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383 | shr ebx, 16 ; ebx = y1 |
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384 | push eax ; save x1 |
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385 | push ebx ; save y1 |
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386 | push esi ; save x2 |
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387 | push ebp ; save y2 |
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388 | ; checking x-axis... |
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389 | sub esi, eax ; esi = x2-x1 |
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390 | push esi ; save y2-y1 |
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391 | jl .x2lx1 ; is x2 less than x1 ? |
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392 | jg .no_vline ; x1 > x2 ? |
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393 | mov edx, ebp ; else (if x1=x2) |
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394 | call vline |
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395 | push edx ; necessary to rightly restore stack frame at .exit |
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396 | jmp .exit |
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1 | ha | 397 | .x2lx1: |
469 | serge | 398 | neg esi ; get esi absolute value |
1 | ha | 399 | .no_vline: |
469 | serge | 400 | ; checking y-axis... |
401 | sub ebp, ebx ; ebp = y2-y1 |
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402 | push ebp ; save y2-y1 |
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403 | jl .y2ly1 ; is y2 less than y1 ? |
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404 | jg .no_hline ; y1 > y2 ? |
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405 | mov edx, [dl_x2] ; else (if y1=y2) |
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406 | call hline |
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407 | jmp .exit |
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1 | ha | 408 | |
409 | .y2ly1: |
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469 | serge | 410 | neg ebp ; get ebp absolute value |
1 | ha | 411 | .no_hline: |
469 | serge | 412 | cmp ebp, esi |
413 | jle .x_rules ; |y2-y1| < |x2-x1| ? |
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414 | cmp [dl_y2], ebx ; make sure y1 is at the begining |
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415 | jge .no_reverse1 |
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416 | neg dword [dl_dx] |
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417 | mov edx, [dl_x2] |
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418 | mov [dl_x2], eax |
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419 | mov [dl_x1], edx |
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420 | mov edx, [dl_y2] |
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421 | mov [dl_y2], ebx |
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422 | mov [dl_y1], edx |
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1 | ha | 423 | .no_reverse1: |
469 | serge | 424 | mov eax, [dl_dx] |
425 | cdq ; extend eax sing to edx |
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426 | shl eax, 16 ; using 16bit fix-point maths |
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427 | idiv ebp ; eax = ((x2-x1)*65536)/(y2-y1) |
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428 | mov edx, ebp ; edx = counter (number of pixels to draw) |
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429 | mov ebp, 1 *65536 ; <<16 ; ebp = dy = 1.0 |
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430 | mov esi, eax ; esi = dx |
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431 | jmp .y_rules |
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1 | ha | 432 | |
433 | .x_rules: |
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469 | serge | 434 | cmp [dl_x2], eax ; make sure x1 is at the begining |
435 | jge .no_reverse2 |
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436 | neg dword [dl_dy] |
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437 | mov edx, [dl_x2] |
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438 | mov [dl_x2], eax |
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439 | mov [dl_x1], edx |
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440 | mov edx, [dl_y2] |
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441 | mov [dl_y2], ebx |
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442 | mov [dl_y1], edx |
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1 | ha | 443 | .no_reverse2: |
469 | serge | 444 | xor edx, edx |
445 | mov eax, [dl_dy] |
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446 | cdq ; extend eax sing to edx |
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447 | shl eax, 16 ; using 16bit fix-point maths |
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448 | idiv esi ; eax = ((y2-y1)*65536)/(x2-x1) |
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449 | mov edx, esi ; edx = counter (number of pixels to draw) |
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450 | mov esi, 1 *65536 ;<< 16 ; esi = dx = 1.0 |
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451 | mov ebp, eax ; ebp = dy |
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1 | ha | 452 | .y_rules: |
469 | serge | 453 | mov eax, [dl_x1] |
454 | mov ebx, [dl_y1] |
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455 | shl eax, 16 |
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456 | shl ebx, 16 |
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1 | ha | 457 | align 4 |
458 | .draw: |
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469 | serge | 459 | push eax ebx |
460 | shr eax, 16 |
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461 | shr ebx, 16 |
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462 | call [putpixel] |
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463 | pop ebx eax |
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464 | add ebx, ebp ; y = y+dy |
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465 | add eax, esi ; x = x+dx |
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466 | dec edx |
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467 | jnz .draw |
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468 | ; force last drawn pixel to be at (x2,y2) |
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469 | mov eax, [dl_x2] |
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470 | mov ebx, [dl_y2] |
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471 | call [putpixel] |
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1 | ha | 472 | .exit: |
469 | serge | 473 | add esp, 6*4 |
474 | popa |
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36 | mario79 | 475 | ; dec [mouse_pause] |
476 | call [draw_pointer] |
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469 | serge | 477 | ret |
1 | ha | 478 | |
479 | |||
480 | hline: |
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481 | ; draw an horizontal line |
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482 | ; eax = x1 |
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483 | ; edx = x2 |
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484 | ; ebx = y |
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485 | ; ecx = color |
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486 | ; edi = force ? |
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469 | serge | 487 | push eax edx |
488 | cmp edx, eax ; make sure x2 is above x1 |
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489 | jge @f |
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490 | xchg eax, edx |
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491 | align 4 |
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492 | @@: |
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493 | call [putpixel] |
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494 | inc eax |
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495 | cmp eax, edx |
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496 | jle @b |
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497 | pop edx eax |
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498 | ret |
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1 | ha | 499 | |
500 | |||
501 | vline: |
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502 | ; draw a vertical line |
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503 | ; eax = x |
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504 | ; ebx = y1 |
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505 | ; edx = y2 |
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506 | ; ecx = color |
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507 | ; edi = force ? |
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469 | serge | 508 | push ebx edx |
509 | cmp edx, ebx ; make sure y2 is above y1 |
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510 | jge @f |
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511 | xchg ebx, edx |
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512 | align 4 |
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513 | @@: |
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514 | call [putpixel] |
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515 | inc ebx |
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516 | cmp ebx, edx |
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517 | jle @b |
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518 | pop edx ebx |
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519 | ret |
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1 | ha | 520 | |
521 | |||
522 | ;************************************************* |
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523 | |||
524 | |||
525 | virtual at esp |
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469 | serge | 526 | drbar: |
527 | .bar_sx dd ? |
||
528 | .bar_sy dd ? |
||
529 | .bar_cx dd ? |
||
530 | .bar_cy dd ? |
||
531 | .abs_cx dd ? |
||
532 | .abs_cy dd ? |
||
533 | .real_sx dd ? |
||
534 | .real_sy dd ? |
||
535 | .color dd ? |
||
536 | .line_inc_scr dd ? |
||
537 | .line_inc_map dd ? |
||
538 | .stack_data = 4*11 |
||
1 | ha | 539 | end virtual |
540 | |||
541 | align 4 |
||
542 | ; eax cx |
||
543 | ; ebx cy |
||
544 | ; ecx xe |
||
545 | ; edx ye |
||
546 | ; edi color |
||
547 | vesa20_drawbar: |
||
469 | serge | 548 | pushad |
549 | call [disable_mouse] |
||
550 | sub esp, drbar.stack_data |
||
551 | mov [drbar.color], edi |
||
552 | sub edx, ebx |
||
553 | jle .exit ;// mike.dld, 2005-01-29 |
||
554 | sub ecx, eax |
||
555 | jle .exit ;// mike.dld, 2005-01-29 |
||
556 | mov [drbar.bar_sy], edx |
||
557 | mov [drbar.bar_sx], ecx |
||
558 | mov [drbar.bar_cx], eax |
||
559 | mov [drbar.bar_cy], ebx |
||
560 | mov edi, [TASK_BASE] |
||
561 | add eax, [edi-twdw + WDATA.box.left] ; win_cx |
||
562 | add ebx, [edi-twdw + WDATA.box.top] ; win_cy |
||
563 | mov [drbar.abs_cx], eax |
||
564 | mov [drbar.abs_cy], ebx |
||
565 | ; real_sx = MIN(wnd_sx-bar_cx, bar_sx); |
||
566 | mov ebx, [edi-twdw + WDATA.box.width] ; ebx = wnd_sx |
||
133 | diamond | 567 | ; \begin{diamond}[20.08.2006] |
568 | ; note that WDATA.box.width is one pixel less than real window x-size |
||
469 | serge | 569 | inc ebx |
133 | diamond | 570 | ; \end{diamond}[20.08.2006] |
469 | serge | 571 | sub ebx, [drbar.bar_cx] |
572 | ja @f |
||
573 | .exit: ;// mike.dld, 2005-01-29 |
||
574 | add esp, drbar.stack_data |
||
575 | popad |
||
576 | xor eax, eax |
||
577 | inc eax |
||
578 | ret |
||
579 | @@: |
||
580 | cmp ebx, [drbar.bar_sx] |
||
581 | jbe .end_x |
||
582 | mov ebx, [drbar.bar_sx] |
||
583 | .end_x: |
||
584 | mov [drbar.real_sx], ebx |
||
585 | ; real_sy = MIN(wnd_sy-bar_cy, bar_sy); |
||
586 | mov ebx, [edi-twdw + WDATA.box.height] ; ebx = wnd_sy |
||
133 | diamond | 587 | ; \begin{diamond}[20.08.2006] |
469 | serge | 588 | inc ebx |
133 | diamond | 589 | ; \end{diamond} |
469 | serge | 590 | sub ebx, [drbar.bar_cy] |
591 | ja @f |
||
592 | add esp, drbar.stack_data |
||
593 | popad |
||
594 | xor eax, eax |
||
595 | inc eax |
||
596 | ret |
||
597 | @@: |
||
598 | cmp ebx, [drbar.bar_sy] |
||
599 | jbe .end_y |
||
600 | mov ebx, [drbar.bar_sy] |
||
601 | .end_y: |
||
602 | mov [drbar.real_sy], ebx |
||
603 | ; line_inc_map |
||
604 | mov eax, [ScreenWidth] |
||
605 | sub eax, [drbar.real_sx] |
||
606 | inc eax |
||
607 | mov [drbar.line_inc_map], eax |
||
608 | ; line_inc_scr |
||
609 | mov eax, [drbar.real_sx] |
||
610 | movzx ebx, byte [ScreenBPP] |
||
611 | shr ebx, 3 |
||
612 | imul eax, ebx |
||
613 | neg eax |
||
614 | add eax, [BytesPerScanLine] |
||
615 | mov [drbar.line_inc_scr], eax |
||
616 | ; pointer to screen |
||
617 | mov edx, [drbar.abs_cy] |
||
618 | imul edx, [BytesPerScanLine] |
||
619 | mov eax, [drbar.abs_cx] |
||
620 | ; movzx ebx, byte [ScreenBPP] |
||
621 | ; shr ebx, 3 |
||
622 | imul eax, ebx |
||
623 | add edx, eax |
||
624 | add edx, [LFBAddress] |
||
625 | ; pointer to pixel map |
||
626 | mov eax, [drbar.abs_cy] |
||
627 | imul eax, [ScreenWidth] |
||
628 | add eax, [drbar.abs_cy] |
||
629 | add eax, [drbar.abs_cx] |
||
630 | add eax, WinMapAddress |
||
631 | xchg eax, ebp |
||
632 | ; get process number |
||
633 | mov ebx, [CURRENT_TASK] |
||
634 | cmp byte [ScreenBPP], 24 |
||
635 | jne draw_bar_end_32 |
||
1 | ha | 636 | draw_bar_end_24: |
469 | serge | 637 | mov eax, [drbar.color] ;; BBGGRR00 |
638 | mov bh, al ;; bh = BB |
||
639 | shr eax, 8 ;; eax = RRGG |
||
1 | ha | 640 | ; eax - color high RRGG |
641 | ; bl - process num |
||
642 | ; bh - color low BB |
||
643 | ; ecx - temp |
||
644 | ; edx - pointer to screen |
||
645 | ; esi - counter |
||
646 | ; edi - counter |
||
469 | serge | 647 | mov esi, [drbar.real_sy] |
648 | align 4 |
||
649 | .new_y: |
||
650 | mov edi, [drbar.real_sx] |
||
651 | align 4 |
||
652 | .new_x: |
||
653 | cmp byte [ebp], bl |
||
654 | jne .skip |
||
655 | mov [edx], bh |
||
656 | mov [edx + 1], ax |
||
657 | .skip: |
||
658 | ; add pixel |
||
659 | add edx, 3 |
||
660 | inc ebp |
||
661 | dec edi |
||
662 | jnz .new_x |
||
663 | ; add line |
||
664 | add edx, [drbar.line_inc_scr] |
||
665 | add ebp, [drbar.line_inc_map] |
||
666 | ; |
||
667 | test eax, 0x00800000 |
||
668 | jz @f |
||
669 | test bh, bh |
||
670 | jz @f |
||
671 | dec bh |
||
672 | @@: |
||
673 | ; |
||
674 | dec esi |
||
675 | jnz .new_y |
||
676 | add esp, drbar.stack_data |
||
677 | popad |
||
678 | xor eax, eax |
||
679 | ret |
||
1 | ha | 680 | |
681 | draw_bar_end_32: |
||
469 | serge | 682 | mov eax, [drbar.color] ;; BBGGRR00 |
683 | mov esi, [drbar.real_sy] |
||
684 | align 4 |
||
685 | .new_y: |
||
686 | mov edi, [drbar.real_sx] |
||
687 | align 4 |
||
688 | .new_x: |
||
689 | cmp byte [ebp], bl |
||
690 | jne .skip |
||
691 | mov [edx], eax |
||
692 | .skip: |
||
693 | ; add pixel |
||
694 | add edx, 4 |
||
695 | inc ebp |
||
696 | dec edi |
||
697 | jnz .new_x |
||
698 | ; add line |
||
699 | add edx, [drbar.line_inc_scr] |
||
700 | add ebp, [drbar.line_inc_map] |
||
701 | ; |
||
702 | test eax, 0x80000000 |
||
703 | jz @f |
||
704 | test al, al |
||
705 | jz @f |
||
706 | dec al |
||
707 | @@: |
||
708 | ; |
||
709 | dec esi |
||
710 | jnz .new_y |
||
711 | add esp, drbar.stack_data |
||
712 | popad |
||
713 | call VGA_draw_bar |
||
714 | xor eax, eax |
||
715 | mov [EGA_counter],1 |
||
716 | ret |
||
1 | ha | 717 | |
718 | ;voodoodbcplimit: |
||
719 | |||
720 | ; ebp:=(y+Ywin)*(ScreenXSize+1)+(x+Xwin)+AddrBuffer |
||
721 | |||
722 | |||
723 | ; pusha |
||
724 | |||
725 | ; xor edx,edx |
||
726 | ; mov eax,ebp |
||
727 | ; mov ebx,[ScreenWidth] ; Screen_X_size |
||
728 | ; inc ebx ; +1 |
||
729 | ; sub eax,WinMapAddress ; -AddrBuffer |
||
730 | ; div ebx ; |
||
731 | ; mov ebx,eax ; ebx:=Y |
||
732 | ; mov eax,edx ; eax:=X |
||
733 | ; call cplimit |
||
734 | |||
735 | ; test ecx,ecx |
||
736 | ; jne dbcpl12 |
||
737 | ; popa |
||
738 | ; clc |
||
739 | ; ret |
||
740 | ; dbcpl12: |
||
741 | ; popa |
||
742 | ; stc |
||
743 | ; ret |
||
744 | |||
745 | |||
746 | |||
747 | |||
748 | ;dbcplimit: |
||
749 | |||
750 | ; pusha |
||
751 | |||
752 | ; xor edx,edx |
||
753 | ; mov ebx,[ScreenWidth] |
||
754 | ; inc ebx |
||
755 | ; sub eax,WinMapAddress |
||
756 | ; div ebx |
||
757 | ; mov ebx,eax |
||
758 | ; mov eax,edx |
||
759 | ; call cplimit |
||
760 | |||
761 | ; test ecx,ecx |
||
762 | ; jne dbcpl1 |
||
763 | ; popa |
||
764 | ; clc |
||
765 | ; ret |
||
766 | ; dbcpl1: |
||
767 | ; popa |
||
768 | ; stc |
||
769 | ; ret |
||
770 | |||
771 | |||
772 | vesa20_drawbackground_tiled: |
||
527 | diamond | 773 | call [disable_mouse] |
774 | pushad |
||
775 | ; External loop for all y from start to end |
||
776 | mov ebx, [draw_data+32+RECT.top] ; y start |
||
777 | dp2: |
||
778 | mov ebp, [draw_data+32+RECT.left] ; x start |
||
779 | ; 1) Calculate pointers in WinMapAddress (does pixel belong to OS thread?) [ebp] |
||
780 | ; and LFB data (output for our function) [edi] |
||
781 | mov eax, [BytesPerScanLine] |
||
782 | mul ebx |
||
783 | xchg ebp, eax |
||
784 | add ebp, eax |
||
785 | add ebp, eax |
||
786 | add ebp, eax |
||
787 | cmp [ScreenBPP], byte 24 ; 24 or 32 bpp ? - x size |
||
788 | jz @f |
||
789 | add ebp, eax |
||
469 | serge | 790 | @@: |
527 | diamond | 791 | add ebp, [LFBAddress] |
469 | serge | 792 | ; ebp:=Y*BytesPerScanLine+X*BytesPerPixel+AddrLFB |
527 | diamond | 793 | call calculate_edi |
794 | xchg edi, ebp |
||
795 | ; Now eax=x, ebx=y, edi->output, ebp=offset in WinMapAddress |
||
796 | ; 2) Calculate offset in background memory block |
||
797 | push eax |
||
798 | xor edx, edx |
||
799 | mov eax, ebx |
||
800 | mov ecx, [BgrDataHeight] |
||
801 | div ecx ; edx := y mod BgrDataHeight |
||
802 | sub ecx, edx ; ecx := BgrDataHeight - (y mod BgrDataHeight) |
||
803 | pop eax |
||
804 | push eax |
||
805 | mov esi, edx |
||
806 | imul esi, [BgrDataWidth] ; esi := (y mod BgrDataHeight) * BgrDataWidth |
||
807 | xor edx, edx |
||
808 | div dword [BgrDataWidth] ; edx := x mod BgrDataWidth |
||
809 | add esi, edx ; esi := (y mod BgrDataHeight)*BgrDataWidth + (x mod BgrDataWidth) |
||
810 | pop eax |
||
811 | lea esi, [esi*3] |
||
812 | add esi, [img_background] |
||
813 | xor edx, edx |
||
814 | inc edx |
||
815 | ; 3) Loop through redraw rectangle and copy background data |
||
816 | ; Registers meaning: |
||
817 | ; eax = x, ebx = y (screen coordinates) |
||
818 | ; ecx = deltax - number of pixels left in current tile block |
||
819 | ; edx = 1 |
||
820 | ; esi -> bgr memory, edi -> output |
||
821 | ; ebp = offset in WinMapAddress |
||
822 | dp3: |
||
823 | cmp [ebp+WinMapAddress], dl |
||
824 | jnz nbgp |
||
825 | movsb |
||
826 | movsb |
||
827 | movsb |
||
828 | jmp @f |
||
469 | serge | 829 | nbgp: |
527 | diamond | 830 | add esi, 3 |
831 | add edi, 3 |
||
469 | serge | 832 | @@: |
527 | diamond | 833 | cmp [ScreenBPP], byte 25 ; 24 or 32 bpp? |
834 | sbb edi, -1 ; +1 for 32 bpp |
||
835 | ; I do not use 'inc eax' because this is slightly slower then 'add eax,1' |
||
836 | add ebp, edx |
||
837 | add eax, edx |
||
838 | cmp eax, [draw_data+32+RECT.right] |
||
839 | ja dp4 |
||
840 | sub ecx, edx |
||
841 | jnz dp3 |
||
842 | ; next tile block on x-axis |
||
843 | mov ecx, [BgrDataWidth] |
||
844 | sub esi, ecx |
||
845 | sub esi, ecx |
||
846 | sub esi, ecx |
||
847 | jmp dp3 |
||
848 | dp4: |
||
849 | ; next scan line |
||
850 | inc ebx |
||
851 | cmp ebx, [draw_data+32+RECT.bottom] |
||
852 | jbe dp2 |
||
853 | popad |
||
854 | mov [EGA_counter], 1 |
||
855 | call VGA_drawbackground |
||
856 | ret |
||
1 | ha | 857 | |
858 | ; ---------- |
||
859 | |||
860 | |||
861 | vesa20_drawbackground_stretch: |
||
527 | diamond | 862 | call [disable_mouse] |
863 | pushad |
||
864 | ; Helper variables |
||
865 | mov eax, [BgrDataWidth] |
||
866 | xor edx, edx |
||
867 | mov ecx, [ScreenWidth] |
||
868 | inc ecx |
||
869 | div ecx |
||
870 | push eax ; quo |
||
871 | push edx ; rem |
||
872 | mov eax, [BgrDataHeight] |
||
873 | xor edx, edx |
||
874 | mov ecx, [ScreenHeight] |
||
875 | inc ecx |
||
876 | div ecx |
||
877 | push eax |
||
878 | push edx |
||
879 | ; External loop for all y from start to end |
||
880 | mov ebx, [draw_data+32+RECT.top] ; y start |
||
881 | mov ebp, [draw_data+32+RECT.left] ; x start |
||
882 | ; 1) Calculate pointers in WinMapAddress (does pixel belong to OS thread?) [ebp] |
||
883 | ; and LFB data (output for our function) [edi] |
||
884 | mov eax, [BytesPerScanLine] |
||
885 | mul ebx |
||
886 | xchg ebp, eax |
||
887 | add ebp, eax |
||
888 | add ebp, eax |
||
889 | add ebp, eax |
||
890 | cmp [ScreenBPP], byte 24 ; 24 or 32 bpp ? - x size |
||
891 | jz @f |
||
892 | add ebp, eax |
||
469 | serge | 893 | @@: |
527 | diamond | 894 | add ebp, [LFBAddress] |
469 | serge | 895 | ; ebp:=Y*BytesPerScanLine+X*BytesPerPixel+AddrLFB |
527 | diamond | 896 | call calculate_edi |
897 | xchg edi, ebp |
||
898 | ; Now eax=x, ebx=y, edi->output, ebp=offset in WinMapAddress |
||
899 | push ebx |
||
900 | ; 2) Calculate offset in background memory block |
||
901 | push eax |
||
902 | mov eax, ebx |
||
903 | mul dword [BgrDataHeight] |
||
904 | mov ecx, [ScreenHeight] |
||
905 | inc ecx |
||
906 | div ecx ; eax := y * BgrDataHeight / ScreenHeight |
||
907 | ; edx := (y * BgrDataHeight) mod ScreenHeight |
||
908 | mov esi, eax |
||
909 | pop eax |
||
910 | push edx ; dword [esp] = (y * BgrDataHeight) mod ScreenHeight |
||
911 | ; dword [esp+4] = y * BgrDataHeight / ScreenHeight |
||
912 | push eax |
||
913 | mov ecx, [BgrDataWidth] |
||
536 | diamond | 914 | lea edx, [ecx*3] |
915 | imul edx, [BgrDataHeight] |
||
916 | add edx, [img_background] |
||
917 | push edx |
||
527 | diamond | 918 | mul ecx |
919 | imul esi, ecx |
||
920 | dec ecx |
||
921 | push ecx |
||
922 | mov ecx, [ScreenWidth] |
||
923 | inc ecx |
||
924 | div ecx ; eax := x * BgrDataWidth / ScreenWidth |
||
925 | ; edx := (x * BgrDataWidth) mod ScreenWidth |
||
926 | add esi, eax |
||
927 | lea esi, [esi*3] |
||
928 | add esi, [img_background] |
||
929 | push ecx edx esi |
||
930 | ; 3) Loop through redraw rectangle and copy background data |
||
931 | ; Registers meaning: |
||
932 | ; ecx = (x * BgrDataWidth) / ScreenWidth |
||
933 | ; edx = (x * BgrDataWidth) mod ScreenWidth (used to fast recalculating of ecx,esi) |
||
934 | ; esi -> bgr memory, edi -> output |
||
935 | ; ebp = offset in WinMapAddress |
||
936 | ; dword [esp] = saved esi |
||
937 | ; dword [esp+4] = saved edx |
||
938 | ; dword [esp+8] = saved ecx |
||
536 | diamond | 939 | ; dword [esp+12] = BgrDataWidth-1, x-limit for overlapping of points |
940 | ; dword [esp+16] = end of bgr memory (defines y-limit for overlapping of points) |
||
941 | ; dword [esp+20] = x |
||
942 | ; dword [esp+24] = (y * BgrDataHeight) mod ScreenHeight (used to fast recalculating of esi) |
||
943 | ; dword [esp+28] = y |
||
527 | diamond | 944 | ; precalculated constants: |
536 | diamond | 945 | ; dword [esp+32] = BgrDataHeight mod ScreenHeight |
946 | ; dword [esp+36] = BgrDataHeight div ScreenHeight |
||
947 | ; dword [esp+40] = BgrDataWidth mod ScreenWidth |
||
948 | ; dword [esp+44] = BgrDataWidth div ScreenWidth |
||
527 | diamond | 949 | sdp3: |
536 | diamond | 950 | add edx, [esp+40] |
527 | diamond | 951 | cmp [ebp+WinMapAddress], byte 1 |
952 | jnz snbgp |
||
953 | mov al, [esi+2] |
||
954 | shl eax, 16 |
||
955 | mov ax, [esi] |
||
956 | cmp ecx, [esp+12] |
||
957 | jae @f |
||
536 | diamond | 958 | cmp edx, [ScreenWidth] |
959 | jb @f |
||
527 | diamond | 960 | mov ebx, [esi+2] |
961 | shr ebx, 8 |
||
962 | call overlapping_of_points |
||
469 | serge | 963 | @@: |
536 | diamond | 964 | mov ebx, [esp+24] |
965 | add ebx, [esp+32] |
||
966 | cmp ebx, [ScreenHeight] |
||
967 | jbe @f |
||
968 | mov ebx, [BgrDataWidth] |
||
969 | lea ebx, [ebx*3] |
||
970 | add ebx, esi |
||
971 | cmp ebx, [esp+16] |
||
972 | jae @f |
||
973 | mov ebx, [ebx-1] |
||
974 | shr ebx, 8 |
||
975 | call overlapping_of_points |
||
976 | @@: |
||
527 | diamond | 977 | mov [edi], ax |
978 | shr eax, 16 |
||
979 | mov [edi+2], al |
||
980 | snbgp: |
||
981 | cmp [ScreenBPP], byte 25 |
||
982 | sbb edi, -4 |
||
983 | add ebp, 1 |
||
536 | diamond | 984 | mov eax, [esp+20] |
527 | diamond | 985 | add eax, 1 |
536 | diamond | 986 | mov [esp+20], eax |
527 | diamond | 987 | cmp eax, [draw_data+32+RECT.right] |
988 | ja sdp4 |
||
536 | diamond | 989 | mov eax, [esp+44] |
527 | diamond | 990 | add ecx, eax |
991 | lea eax, [eax*3] |
||
992 | add esi, eax |
||
536 | diamond | 993 | ; add edx, [esp+40] |
527 | diamond | 994 | cmp edx, [ScreenWidth] |
995 | jbe sdp3 |
||
996 | sub edx, [ScreenWidth] |
||
997 | add ecx, 1 |
||
998 | add esi, 3 |
||
999 | sub edx, 1 |
||
1000 | jmp sdp3 |
||
1001 | sdp4: |
||
1002 | ; next y |
||
536 | diamond | 1003 | mov ebx, [esp+28] |
527 | diamond | 1004 | add ebx, 1 |
536 | diamond | 1005 | mov [esp+28], ebx |
527 | diamond | 1006 | cmp ebx, [draw_data+32+RECT.bottom] |
1007 | ja sdpdone |
||
1008 | ; advance edi, ebp to next scan line |
||
1009 | sub eax, [draw_data+32+RECT.left] |
||
1010 | sub ebp, eax |
||
1011 | add ebp, [ScreenWidth] |
||
1012 | add ebp, 1 |
||
1013 | sub edi, eax |
||
1014 | sub edi, eax |
||
1015 | sub edi, eax |
||
1016 | cmp [ScreenBPP], byte 24 |
||
1017 | jz @f |
||
1018 | sub edi, eax |
||
379 | serge | 1019 | @@: |
527 | diamond | 1020 | add edi, [BytesPerScanLine] |
1021 | ; restore ecx,edx; advance esi to next background line |
||
1022 | pop esi edx ecx |
||
1023 | push ecx edx |
||
1024 | xor ebx, ebx |
||
536 | diamond | 1025 | mov eax, [esp+24-4] |
1026 | add eax, [esp+32-4] |
||
527 | diamond | 1027 | cmp eax, [ScreenHeight] |
1028 | jbe @f |
||
1029 | sub eax, [ScreenHeight] |
||
1030 | mov ebx, 1 |
||
1031 | sub eax, ebx |
||
379 | serge | 1032 | @@: |
536 | diamond | 1033 | mov [esp+24-4], eax |
1034 | add ebx, [esp+36-4] |
||
527 | diamond | 1035 | lea ebx, [ebx*3] |
1036 | imul ebx, [BgrDataWidth] |
||
1037 | add esi, ebx |
||
1038 | push esi |
||
1039 | mov eax, [draw_data+32+RECT.left] |
||
536 | diamond | 1040 | mov [esp+20], eax |
527 | diamond | 1041 | jmp sdp3 |
1042 | sdpdone: |
||
536 | diamond | 1043 | add esp, 48 |
527 | diamond | 1044 | popad |
1045 | mov [EGA_counter],1 |
||
1046 | call VGA_drawbackground |
||
1047 | ret |
||
1 | ha | 1048 | |
379 | serge | 1049 | overlapping_of_points: |
527 | diamond | 1050 | push ecx edx edi |
1051 | mov ecx, eax |
||
1052 | mov edx, ebx |
||
1053 | movzx eax, cl |
||
1054 | movzx ebx, dl |
||
1055 | add eax, ebx |
||
1056 | rcr eax, 1 |
||
1057 | movzx edi, ax |
||
1058 | movzx eax, ch |
||
1059 | movzx ebx, dh |
||
1060 | add eax, ebx |
||
1061 | rcr eax, 1 |
||
1062 | ror edi, 8 |
||
1063 | add edi, eax |
||
1064 | shr ecx, 8 |
||
1065 | shr edx, 8 |
||
1066 | movzx eax, ch |
||
1067 | movzx ebx, dh |
||
1068 | add eax, ebx |
||
1069 | rcr eax, 1 |
||
1070 | ror edi, 8 |
||
1071 | add eax, edi |
||
1072 | ror eax, 16 |
||
1073 | pop edi edx ecx |
||
1074 | ret><>16><16>> |