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Rev | Author | Line No. | Line |
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5153 | IgorA | 1 | ; |
2 | ; |
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3 | ; Z buffer: 16 bits Z / 16 bits color |
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4 | ; |
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5 | ; |
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6 | ;include 'zbuffer.inc' |
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7 | |||
8 | ;output: |
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9 | ; eax - указатель на ZBuffer (0 если не удача) |
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6172 | IgorA | 10 | align 16 |
5153 | IgorA | 11 | proc ZB_open uses ecx edi, xsize:dword, ysize:dword, mode:dword,\ |
12 | nb_colors:dword, color_indexes:dword, color_table:dword, frame_buffer:dword |
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13 | |||
14 | stdcall gl_malloc, sizeof.ZBuffer |
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15 | cmp eax,0 |
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16 | jne @f |
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17 | stdcall dbg_print,f_zb_opn,err_1 |
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18 | jmp .end_f |
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19 | @@: |
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20 | mov edi,eax |
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21 | |||
22 | mov eax,[ysize] |
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8069 | IgorA | 23 | mov [edi+ZBuffer.ysize],eax |
5153 | IgorA | 24 | mov eax,[xsize] |
8069 | IgorA | 25 | mov [edi+ZBuffer.xsize],eax |
5153 | IgorA | 26 | imul eax,PSZB |
8069 | IgorA | 27 | mov [edi+ZBuffer.linesize],eax |
5153 | IgorA | 28 | mov eax,[mode] |
8069 | IgorA | 29 | mov [edi+ZBuffer.mode],eax |
5153 | IgorA | 30 | |
31 | if TGL_FEATURE_32_BITS eq 1 |
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32 | cmp eax,ZB_MODE_RGBA |
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33 | je .correct |
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34 | end if |
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35 | if TGL_FEATURE_24_BITS eq 1 |
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36 | cmp eax,ZB_MODE_RGB24 |
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37 | je .correct |
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38 | end if |
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39 | cmp eax,ZB_MODE_5R6G5B |
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40 | jne @f |
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41 | .correct: |
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8069 | IgorA | 42 | mov dword[edi+ZBuffer.nb_colors],0 |
5153 | IgorA | 43 | jmp .end_s |
44 | @@: ;default: |
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45 | stdcall dbg_print,f_zb_opn,err_3 |
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46 | jmp .error |
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47 | .end_s: |
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48 | |||
8069 | IgorA | 49 | mov ecx,[edi+ZBuffer.xsize] |
50 | imul ecx,[edi+ZBuffer.ysize] |
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5159 | IgorA | 51 | shl ecx,1 ;*= sizeof(unsigned short) |
5153 | IgorA | 52 | |
53 | stdcall gl_malloc, ecx |
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8069 | IgorA | 54 | mov [edi+ZBuffer.zbuf],eax |
5153 | IgorA | 55 | cmp eax,0 |
56 | jne @f |
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57 | stdcall dbg_print,f_zb_opn,err_2 |
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58 | jmp .error |
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59 | @@: |
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60 | |||
8069 | IgorA | 61 | mov dword[edi+ZBuffer.frame_buffer_allocated],0 |
62 | mov dword[edi+ZBuffer.pbuf],0 ;NULL |
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5153 | IgorA | 63 | |
8069 | IgorA | 64 | mov dword[edi+ZBuffer.current_texture],0 ;NULL |
5153 | IgorA | 65 | |
66 | mov eax,edi |
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67 | jmp .end_f |
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68 | .error: |
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69 | stdcall gl_free,edi |
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70 | xor eax,eax |
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71 | .end_f: |
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72 | ret |
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73 | endp |
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74 | |||
75 | ;void ZB_close(ZBuffer * zb) |
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76 | ;{ |
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77 | ; if (zb->frame_buffer_allocated) |
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78 | ; gl_free(zb->pbuf); |
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6172 | IgorA | 79 | |
5153 | IgorA | 80 | ; gl_free(zb->zbuf); |
81 | ; gl_free(zb); |
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82 | ;} |
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83 | |||
6172 | IgorA | 84 | align 16 |
5153 | IgorA | 85 | proc ZB_resize uses eax ebx ecx edi esi, zb:dword, frame_buffer:dword, xsize:dword, ysize:dword |
86 | mov ebx,[zb] |
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87 | |||
88 | mov edi,[xsize] |
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89 | mov esi,[ysize] |
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90 | |||
8069 | IgorA | 91 | mov [ebx+ZBuffer.xsize], edi |
92 | mov [ebx+ZBuffer.ysize], esi |
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5153 | IgorA | 93 | |
94 | mov eax,edi |
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95 | imul eax,PSZB |
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8069 | IgorA | 96 | mov [ebx+ZBuffer.linesize],eax ;zb.linesize = (xsize * PSZB + 3) & ~3 |
5153 | IgorA | 97 | |
98 | mov ecx,edi |
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99 | imul ecx,esi |
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5159 | IgorA | 100 | shl ecx,1 ;*= sizeof(unsigned short) |
5153 | IgorA | 101 | |
8069 | IgorA | 102 | stdcall gl_free,dword[ebx+ZBuffer.zbuf] |
5153 | IgorA | 103 | stdcall gl_malloc,ecx |
8069 | IgorA | 104 | mov [ebx+ZBuffer.zbuf],eax |
5153 | IgorA | 105 | |
8069 | IgorA | 106 | cmp dword[ebx+ZBuffer.frame_buffer_allocated],0 |
5153 | IgorA | 107 | je @f |
8069 | IgorA | 108 | stdcall gl_free,dword[ebx+ZBuffer.pbuf] |
5153 | IgorA | 109 | @@: |
110 | |||
111 | cmp dword[frame_buffer],0 |
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112 | jne .els_0 |
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113 | inc esi |
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8069 | IgorA | 114 | imul esi,dword[ebx+ZBuffer.linesize] |
5153 | IgorA | 115 | stdcall gl_malloc,esi |
8069 | IgorA | 116 | mov dword[ebx+ZBuffer.pbuf],eax |
117 | mov dword[ebx+ZBuffer.frame_buffer_allocated],1 |
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5153 | IgorA | 118 | jmp @f |
119 | .els_0: |
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120 | mov eax,[frame_buffer] |
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8069 | IgorA | 121 | mov dword[ebx+ZBuffer.pbuf],eax |
122 | mov dword[ebx+ZBuffer.frame_buffer_allocated],0 |
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5153 | IgorA | 123 | @@: |
124 | ret |
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125 | endp |
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126 | |||
127 | ;static void ZB_copyBuffer(ZBuffer * zb, |
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128 | ; void *buf, |
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129 | ; int linesize) |
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130 | ;{ |
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131 | ; unsigned char *p1; |
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132 | ; PIXEL *q; |
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133 | ; int y, n; |
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6172 | IgorA | 134 | |
5153 | IgorA | 135 | ; q = zb->pbuf; |
136 | ; p1 = buf; |
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137 | ; n = zb->xsize * PSZB; |
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138 | ; for (y = 0; y < zb->ysize; y++) { |
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139 | ; memcpy(p1, q, n); |
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140 | ; p1 += linesize; |
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141 | ; q = (PIXEL *) ((char *) q + zb->linesize); |
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142 | ; } |
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143 | ;} |
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6172 | IgorA | 144 | |
5153 | IgorA | 145 | ;#if TGL_FEATURE_RENDER_BITS == 16 |
146 | |||
147 | ;/* 32 bpp copy */ |
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148 | |||
149 | ;#ifdef TGL_FEATURE_32_BITS |
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150 | |||
151 | ;#define RGB16_TO_RGB32(p0,p1,v)\ |
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152 | ;{\ |
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153 | ; unsigned int g,b,gb;\ |
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154 | ; g = (v & 0x07E007E0) << 5;\ |
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155 | ; b = (v & 0x001F001F) << 3;\ |
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156 | ; gb = g | b;\ |
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157 | ; p0 = (gb & 0x0000FFFF) | ((v & 0x0000F800) << 8);\ |
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158 | ; p1 = (gb >> 16) | ((v & 0xF8000000) >> 8);\ |
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159 | ;} |
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160 | |||
161 | ;static void ZB_copyFrameBufferRGB32(ZBuffer * zb, |
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162 | ; void *buf, |
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163 | ; int linesize) |
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164 | ;{ |
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165 | ; unsigned short *q; |
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166 | ; unsigned int *p, *p1, v, w0, w1; |
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167 | ; int y, n; |
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6172 | IgorA | 168 | |
5153 | IgorA | 169 | ; q = zb->pbuf; |
170 | ; p1 = (unsigned int *) buf; |
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6172 | IgorA | 171 | |
5153 | IgorA | 172 | ; for (y = 0; y < zb->ysize; y++) { |
173 | ; p = p1; |
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174 | ; n = zb->xsize >> 2; |
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175 | ; do { |
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176 | ; v = *(unsigned int *) q; |
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177 | ;#if BYTE_ORDER == BIG_ENDIAN |
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178 | ; RGB16_TO_RGB32(w1, w0, v); |
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179 | ;#else |
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180 | ; RGB16_TO_RGB32(w0, w1, v); |
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181 | ;#endif |
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182 | ; p[0] = w0; |
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183 | ; p[1] = w1; |
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6172 | IgorA | 184 | |
5153 | IgorA | 185 | ; v = *(unsigned int *) (q + 2); |
186 | ;#if BYTE_ORDER == BIG_ENDIAN |
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187 | ; RGB16_TO_RGB32(w1, w0, v); |
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188 | ;#else |
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189 | ; RGB16_TO_RGB32(w0, w1, v); |
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190 | ;#endif |
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191 | ; p[2] = w0; |
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192 | ; p[3] = w1; |
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6172 | IgorA | 193 | |
5153 | IgorA | 194 | ; q += 4; |
195 | ; p += 4; |
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196 | ; } while (--n > 0); |
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6172 | IgorA | 197 | |
5153 | IgorA | 198 | ; p1 += linesize; |
199 | ; } |
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200 | ;} |
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201 | |||
202 | ;#endif |
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203 | |||
204 | ;/* 24 bit packed pixel handling */ |
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205 | |||
206 | ;#ifdef TGL_FEATURE_24_BITS |
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207 | |||
208 | ;/* order: RGBR GBRG BRGB */ |
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209 | |||
210 | ;/* XXX: packed pixel 24 bit support not tested */ |
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211 | ;/* XXX: big endian case not optimised */ |
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212 | |||
213 | ;#if BYTE_ORDER == BIG_ENDIAN |
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214 | |||
215 | ;#define RGB16_TO_RGB24(p0,p1,p2,v1,v2)\ |
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216 | ;{\ |
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217 | ; unsigned int r1,g1,b1,gb1,g2,b2,gb2;\ |
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218 | ; v1 = (v1 << 16) | (v1 >> 16);\ |
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219 | ; v2 = (v2 << 16) | (v2 >> 16);\ |
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220 | ; r1 = (v1 & 0xF800F800);\ |
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221 | ; g1 = (v1 & 0x07E007E0) << 5;\ |
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222 | ; b1 = (v1 & 0x001F001F) << 3;\ |
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223 | ; gb1 = g1 | b1;\ |
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224 | ; p0 = ((gb1 & 0x0000FFFF) << 8) | (r1 << 16) | (r1 >> 24);\ |
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225 | ; g2 = (v2 & 0x07E007E0) << 5;\ |
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226 | ; b2 = (v2 & 0x001F001F) << 3;\ |
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227 | ; gb2 = g2 | b2;\ |
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228 | ; p1 = (gb1 & 0xFFFF0000) | (v2 & 0xF800) | ((gb2 >> 8) & 0xff);\ |
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229 | ; p2 = (gb2 << 24) | ((v2 & 0xF8000000) >> 8) | (gb2 >> 16);\ |
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230 | ;} |
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231 | |||
232 | ;#else |
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233 | |||
234 | ;#define RGB16_TO_RGB24(p0,p1,p2,v1,v2)\ |
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235 | ;{\ |
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236 | ; unsigned int r1,g1,b1,gb1,g2,b2,gb2;\ |
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237 | ; r1 = (v1 & 0xF800F800);\ |
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238 | ; g1 = (v1 & 0x07E007E0) << 5;\ |
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239 | ; b1 = (v1 & 0x001F001F) << 3;\ |
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240 | ; gb1 = g1 | b1;\ |
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241 | ; p0 = ((gb1 & 0x0000FFFF) << 8) | (r1 << 16) | (r1 >> 24);\ |
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242 | ; g2 = (v2 & 0x07E007E0) << 5;\ |
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243 | ; b2 = (v2 & 0x001F001F) << 3;\ |
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244 | ; gb2 = g2 | b2;\ |
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245 | ; p1 = (gb1 & 0xFFFF0000) | (v2 & 0xF800) | ((gb2 >> 8) & 0xff);\ |
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246 | ; p2 = (gb2 << 24) | ((v2 & 0xF8000000) >> 8) | (gb2 >> 16);\ |
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247 | ;} |
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248 | |||
249 | ;#endif |
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250 | |||
251 | ;static void ZB_copyFrameBufferRGB24(ZBuffer * zb, |
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252 | ; void *buf, int linesize) |
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253 | ;{ |
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254 | ; unsigned short *q; |
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255 | ; unsigned int *p, *p1, w0, w1, w2, v0, v1; |
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256 | ; int y, n; |
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6172 | IgorA | 257 | |
5153 | IgorA | 258 | ; q = zb->pbuf; |
259 | ; p1 = (unsigned int *) buf; |
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260 | ; linesize = linesize * 3; |
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6172 | IgorA | 261 | |
5153 | IgorA | 262 | ; for (y = 0; y < zb->ysize; y++) { |
263 | ; p = p1; |
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264 | ; n = zb->xsize >> 2; |
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265 | ; do { |
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266 | ; v0 = *(unsigned int *) q; |
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267 | ; v1 = *(unsigned int *) (q + 2); |
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268 | ; RGB16_TO_RGB24(w0, w1, w2, v0, v1); |
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269 | ; p[0] = w0; |
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270 | ; p[1] = w1; |
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271 | ; p[2] = w2; |
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272 | |||
273 | ; q += 4; |
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274 | ; p += 3; |
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275 | ; } while (--n > 0); |
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276 | ; |
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277 | ; (char *) p1 += linesize; |
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278 | ; } |
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279 | ;} |
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280 | |||
281 | ;#endif |
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282 | |||
283 | ;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf, |
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284 | ; int linesize) |
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285 | ;{ |
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286 | ; switch (zb->mode) { |
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287 | ;#ifdef TGL_FEATURE_32_BITS |
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288 | ; case ZB_MODE_RGBA: |
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289 | ; ZB_copyFrameBufferRGB32(zb, buf, linesize >> 1); |
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290 | ; break; |
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291 | ;#endif |
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292 | ;#ifdef TGL_FEATURE_24_BITS |
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293 | ; case ZB_MODE_RGB24: |
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294 | ; ZB_copyFrameBufferRGB24(zb, buf, linesize >> 1); |
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295 | ; break; |
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296 | ;#endif |
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297 | ; default: |
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298 | ; assert(0); |
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299 | ; } |
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300 | ;} |
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301 | |||
302 | ;#endif /* TGL_FEATURE_RENDER_BITS == 16 */ |
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303 | |||
304 | ;#if TGL_FEATURE_RENDER_BITS == 24 |
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305 | |||
306 | ;#define RGB24_TO_RGB16(r, g, b) \ |
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307 | ; ((((r) >> 3) << 11) | (((g) >> 2) << 5) | ((b) >> 3)) |
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308 | |||
309 | ;/* XXX: not optimized */ |
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310 | ;static void ZB_copyFrameBuffer5R6G5B(ZBuffer * zb, |
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311 | ; void *buf, int linesize) |
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312 | ;{ |
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313 | ; PIXEL *q; |
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314 | ; unsigned short *p, *p1; |
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315 | ; int y, n; |
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6172 | IgorA | 316 | |
5153 | IgorA | 317 | ; q = zb->pbuf; |
318 | ; p1 = (unsigned short *) buf; |
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6172 | IgorA | 319 | |
5153 | IgorA | 320 | ; for (y = 0; y < zb->ysize; y++) { |
321 | ; p = p1; |
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322 | ; n = zb->xsize >> 2; |
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323 | ; do { |
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324 | ; p[0] = RGB24_TO_RGB16(q[0], q[1], q[2]); |
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325 | ; p[1] = RGB24_TO_RGB16(q[3], q[4], q[5]); |
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326 | ; p[2] = RGB24_TO_RGB16(q[6], q[7], q[8]); |
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327 | ; p[3] = RGB24_TO_RGB16(q[9], q[10], q[11]); |
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328 | ; q = (PIXEL *)((char *)q + 4 * PSZB); |
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329 | ; p += 4; |
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330 | ; } while (--n > 0); |
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331 | ; p1 = (unsigned short *)((char *)p1 + linesize); |
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332 | ; } |
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333 | ;} |
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334 | |||
335 | ;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf, |
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336 | ; int linesize) |
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337 | ;{ |
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338 | ; switch (zb->mode) { |
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339 | ;#ifdef TGL_FEATURE_24_BITS |
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340 | ; case ZB_MODE_RGB24: |
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341 | ; ZB_copyBuffer(zb, buf, linesize); |
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342 | ; break; |
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343 | ;#endif |
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344 | ; default: |
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345 | ; assert(0); |
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346 | ; } |
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347 | ;} |
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348 | |||
349 | ;#endif /* TGL_FEATURE_RENDER_BITS == 24 */ |
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350 | |||
351 | ;#if TGL_FEATURE_RENDER_BITS == 32 |
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352 | |||
353 | ;#define RGB32_TO_RGB16(v) \ |
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354 | ; (((v >> 8) & 0xf800) | (((v) >> 5) & 0x07e0) | (((v) & 0xff) >> 3)) |
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355 | |||
356 | ;/* XXX: not optimized */ |
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357 | ;static void ZB_copyFrameBuffer5R6G5B(ZBuffer * zb, |
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358 | ; void *buf, int linesize) |
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359 | ;{ |
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360 | ; PIXEL *q; |
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361 | ; unsigned short *p, *p1; |
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362 | ; int y, n; |
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6172 | IgorA | 363 | |
5153 | IgorA | 364 | ; q = zb->pbuf; |
365 | ; p1 = (unsigned short *) buf; |
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6172 | IgorA | 366 | |
5153 | IgorA | 367 | ; for (y = 0; y < zb->ysize; y++) { |
368 | ; p = p1; |
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369 | ; n = zb->xsize >> 2; |
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370 | ; do { |
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371 | ; p[0] = RGB32_TO_RGB16(q[0]); |
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372 | ; p[1] = RGB32_TO_RGB16(q[1]); |
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373 | ; p[2] = RGB32_TO_RGB16(q[2]); |
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374 | ; p[3] = RGB32_TO_RGB16(q[3]); |
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375 | ; q += 4; |
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376 | ; p += 4; |
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377 | ; } while (--n > 0); |
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378 | ; p1 = (unsigned short *)((char *)p1 + linesize); |
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379 | ; } |
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380 | ;} |
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6172 | IgorA | 381 | |
5153 | IgorA | 382 | ;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf, |
383 | ; int linesize) |
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384 | ;{ |
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385 | ; switch (zb->mode) { |
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386 | ;#ifdef TGL_FEATURE_32_BITS |
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387 | ; case ZB_MODE_RGBA: |
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388 | ; ZB_copyBuffer(zb, buf, linesize); |
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389 | ; break; |
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390 | ;#endif |
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391 | ; default: |
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392 | ; assert(0); |
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393 | ; } |
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394 | ;} |
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6172 | IgorA | 395 | |
5153 | IgorA | 396 | ;#endif /* TGL_FEATURE_RENDER_BITS == 32 */ |
5159 | IgorA | 397 | |
398 | |||
5153 | IgorA | 399 | ; |
5159 | IgorA | 400 | ; adr must be aligned on an 'int' |
5153 | IgorA | 401 | ; |
6172 | IgorA | 402 | ;destroy: |
403 | ; ecx, edi |
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404 | align 16 |
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405 | proc memset_s uses eax, adr:dword, val:dword, count:dword |
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5159 | IgorA | 406 | mov eax,[val] |
407 | mov di,ax |
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408 | ror eax,16 |
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409 | mov ax,di |
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410 | mov ecx,[count] |
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411 | shr ecx,1 |
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412 | mov edi,[adr] |
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413 | rep stosd |
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414 | |||
415 | bt dword[count],0 |
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416 | jnc @f |
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417 | stosw |
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418 | @@: |
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419 | ret |
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420 | endp |
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421 | |||
6172 | IgorA | 422 | align 16 |
5159 | IgorA | 423 | proc memset_l uses eax ecx edi, adr:dword, val:dword, count:dword |
424 | mov eax,[val] |
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425 | mov ecx,[count] |
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426 | mov edi,[adr] |
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427 | rep stosd |
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428 | ret |
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429 | endp |
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430 | |||
8069 | IgorA | 431 | ;input: |
432 | ; count - число пикселей RGB для закраски |
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6172 | IgorA | 433 | ;destroy: |
8069 | IgorA | 434 | ; eax, ecx, edi, esi |
6172 | IgorA | 435 | align 16 |
8069 | IgorA | 436 | proc memset_RGB24, adr:dword, r:dword, g:dword, b:dword, count:dword |
5159 | IgorA | 437 | mov esi,[adr] |
438 | mov eax,[r] ;копируем в буфер первые 12 байт (минимальное число кратное 3 и 4) |
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439 | mov byte[esi],al |
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440 | mov byte[esi+3],al |
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441 | mov byte[esi+6],al |
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442 | mov byte[esi+9],al |
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443 | mov eax,[g] |
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444 | mov byte[esi+1],al |
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445 | mov byte[esi+4],al |
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446 | mov byte[esi+7],al |
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447 | mov byte[esi+10],al |
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448 | mov eax,[b] |
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449 | mov byte[esi+2],al |
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450 | mov byte[esi+5],al |
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451 | mov byte[esi+8],al |
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452 | mov byte[esi+11],al |
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453 | |||
454 | mov ecx,[count] |
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455 | shr ecx,2 |
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456 | cmp ecx,1 |
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457 | jle .end_f ;если ширина буфера меньше 12 байт, то выходим |
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458 | dec ecx |
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8069 | IgorA | 459 | lea edi,[esi+12] |
5159 | IgorA | 460 | |
461 | mov eax,[esi] |
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462 | cmp eax,[esi+4] |
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463 | jne @f |
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464 | ;если r=g и g=b и b=r |
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8069 | IgorA | 465 | lea ecx,[ecx+2*ecx] ;ecx*=3 |
5159 | IgorA | 466 | rep stosd |
8069 | IgorA | 467 | mov ecx,[count] |
468 | and ecx,3 |
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469 | cmp ecx,0 |
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470 | je .end_f |
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471 | lea ecx,[ecx+2*ecx] ;ecx*=3 |
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472 | rep stosb |
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5159 | IgorA | 473 | jmp .end_f |
6172 | IgorA | 474 | align 16 |
475 | @@: ;если r!=g или g!=b или b!=r |
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5159 | IgorA | 476 | movsd |
477 | movsd |
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478 | movsd |
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479 | sub esi,12 |
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480 | loop @b |
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8069 | IgorA | 481 | mov ecx,[count] |
482 | and ecx,3 |
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483 | cmp ecx,0 |
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484 | je .end_f |
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485 | lea ecx,[ecx+2*ecx] ;ecx*=3 |
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486 | rep movsb |
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5159 | IgorA | 487 | .end_f: |
488 | ret |
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489 | endp |
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490 | |||
6172 | IgorA | 491 | align 16 |
492 | proc ZB_clear uses eax ebx ecx edi esi, zb:dword, clear_z:dword, z:dword,\ |
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493 | clear_color:dword, r:dword, g:dword, b:dword |
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5159 | IgorA | 494 | ;if TGL_FEATURE_RENDER_BITS != 24 |
495 | ; color dd ? |
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496 | ;end if |
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497 | |||
498 | mov eax,[zb] |
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499 | cmp dword[clear_z],0 |
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500 | je @f |
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8069 | IgorA | 501 | mov ebx,[eax+ZBuffer.xsize] |
502 | imul ebx,[eax+ZBuffer.ysize] |
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503 | stdcall memset_s, [eax+ZBuffer.zbuf],[z],ebx |
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5159 | IgorA | 504 | @@: |
505 | cmp dword[clear_color],0 |
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506 | je @f |
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8069 | IgorA | 507 | if TGL_FEATURE_RENDER_BITS eq 32 |
508 | ;color = RGB_TO_PIXEL(r, g, b) |
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509 | ;memset_l(ebx, color, zb->xsize) |
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510 | end if |
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5159 | IgorA | 511 | if TGL_FEATURE_RENDER_BITS eq 24 |
8069 | IgorA | 512 | mov ebx,[eax+ZBuffer.xsize] |
513 | imul ebx,[eax+ZBuffer.ysize] |
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5159 | IgorA | 514 | push ebx |
515 | mov ebx,[b] |
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516 | shr ebx,8 |
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517 | push ebx |
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518 | mov ebx,[g] |
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519 | shr ebx,8 |
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520 | push ebx |
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521 | mov ebx,[r] |
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522 | shr ebx,8 |
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523 | push ebx |
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8069 | IgorA | 524 | stdcall memset_RGB24, [eax+ZBuffer.pbuf] |
5159 | IgorA | 525 | end if |
526 | @@: |
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527 | ret |
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528 | endp>>><>><>>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>>><>><>><>> |