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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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23 | mov [edi+offs_zbuf_ysize],eax |
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24 | mov eax,[xsize] |
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25 | mov [edi+offs_zbuf_xsize],eax |
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26 | imul eax,PSZB |
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27 | add eax,3 |
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28 | and eax,not 3 |
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29 | mov [edi+offs_zbuf_linesize],eax |
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30 | mov eax,[mode] |
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31 | mov [edi+offs_zbuf_mode],eax |
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32 | |||
33 | if TGL_FEATURE_32_BITS eq 1 |
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34 | cmp eax,ZB_MODE_RGBA |
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35 | je .correct |
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36 | end if |
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37 | if TGL_FEATURE_24_BITS eq 1 |
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38 | cmp eax,ZB_MODE_RGB24 |
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39 | je .correct |
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40 | end if |
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41 | cmp eax,ZB_MODE_5R6G5B |
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42 | jne @f |
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43 | .correct: |
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44 | mov dword[edi+offs_zbuf_nb_colors],0 |
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45 | jmp .end_s |
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46 | @@: ;default: |
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47 | stdcall dbg_print,f_zb_opn,err_3 |
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48 | jmp .error |
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49 | .end_s: |
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50 | |||
51 | mov ecx,[edi+offs_zbuf_xsize] |
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52 | imul ecx,[edi+offs_zbuf_ysize] |
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5159 | IgorA | 53 | shl ecx,1 ;*= sizeof(unsigned short) |
5153 | IgorA | 54 | |
55 | stdcall gl_malloc, ecx |
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56 | mov [edi+offs_zbuf_zbuf],eax |
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57 | cmp eax,0 |
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58 | jne @f |
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59 | stdcall dbg_print,f_zb_opn,err_2 |
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60 | jmp .error |
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61 | @@: |
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62 | |||
63 | mov dword[edi+offs_zbuf_frame_buffer_allocated],0 |
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64 | mov dword[edi+offs_zbuf_pbuf],0 ;NULL |
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65 | |||
66 | mov dword[edi+offs_zbuf_current_texture],0 ;NULL |
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67 | |||
68 | mov eax,edi |
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69 | jmp .end_f |
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70 | .error: |
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71 | stdcall gl_free,edi |
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72 | xor eax,eax |
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73 | .end_f: |
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74 | ret |
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75 | endp |
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76 | |||
77 | ;void ZB_close(ZBuffer * zb) |
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78 | ;{ |
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79 | ; if (zb->frame_buffer_allocated) |
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80 | ; gl_free(zb->pbuf); |
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6172 | IgorA | 81 | |
5153 | IgorA | 82 | ; gl_free(zb->zbuf); |
83 | ; gl_free(zb); |
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84 | ;} |
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85 | |||
6172 | IgorA | 86 | align 16 |
5153 | IgorA | 87 | proc ZB_resize uses eax ebx ecx edi esi, zb:dword, frame_buffer:dword, xsize:dword, ysize:dword |
88 | mov ebx,[zb] |
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89 | |||
90 | ; xsize must be a multiple of 4 |
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91 | mov edi,[xsize] |
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92 | and edi,not 3 |
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93 | mov esi,[ysize] |
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94 | |||
95 | mov [ebx+offs_zbuf_xsize], edi |
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96 | mov [ebx+offs_zbuf_ysize], esi |
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97 | |||
98 | mov eax,edi |
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99 | imul eax,PSZB |
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100 | add eax,3 |
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101 | and eax,not 3 |
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102 | mov [ebx+offs_zbuf_linesize],eax ;zb.linesize = (xsize * PSZB + 3) & ~3 |
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103 | |||
104 | mov ecx,edi |
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105 | imul ecx,esi |
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5159 | IgorA | 106 | shl ecx,1 ;*= sizeof(unsigned short) |
5153 | IgorA | 107 | |
108 | stdcall gl_free,dword[ebx+offs_zbuf_zbuf] |
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109 | stdcall gl_malloc,ecx |
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110 | mov [ebx+offs_zbuf_zbuf],eax |
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111 | |||
112 | cmp dword[ebx+offs_zbuf_frame_buffer_allocated],0 |
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113 | je @f |
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114 | stdcall gl_free,dword[ebx+offs_zbuf_pbuf] |
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115 | @@: |
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116 | |||
117 | cmp dword[frame_buffer],0 |
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118 | jne .els_0 |
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119 | inc esi |
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120 | imul esi,dword[ebx+offs_zbuf_linesize] |
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121 | stdcall gl_malloc,esi |
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122 | mov dword[ebx+offs_zbuf_pbuf],eax |
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123 | mov dword[ebx+offs_zbuf_frame_buffer_allocated],1 |
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124 | jmp @f |
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125 | .els_0: |
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126 | mov eax,[frame_buffer] |
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127 | mov dword[ebx+offs_zbuf_pbuf],eax |
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128 | mov dword[ebx+offs_zbuf_frame_buffer_allocated],0 |
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129 | @@: |
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130 | ret |
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131 | endp |
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132 | |||
133 | ;static void ZB_copyBuffer(ZBuffer * zb, |
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134 | ; void *buf, |
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135 | ; int linesize) |
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136 | ;{ |
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137 | ; unsigned char *p1; |
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138 | ; PIXEL *q; |
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139 | ; int y, n; |
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6172 | IgorA | 140 | |
5153 | IgorA | 141 | ; q = zb->pbuf; |
142 | ; p1 = buf; |
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143 | ; n = zb->xsize * PSZB; |
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144 | ; for (y = 0; y < zb->ysize; y++) { |
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145 | ; memcpy(p1, q, n); |
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146 | ; p1 += linesize; |
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147 | ; q = (PIXEL *) ((char *) q + zb->linesize); |
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148 | ; } |
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149 | ;} |
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6172 | IgorA | 150 | |
5153 | IgorA | 151 | ;#if TGL_FEATURE_RENDER_BITS == 16 |
152 | |||
153 | ;/* 32 bpp copy */ |
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154 | |||
155 | ;#ifdef TGL_FEATURE_32_BITS |
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156 | |||
157 | ;#define RGB16_TO_RGB32(p0,p1,v)\ |
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158 | ;{\ |
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159 | ; unsigned int g,b,gb;\ |
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160 | ; g = (v & 0x07E007E0) << 5;\ |
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161 | ; b = (v & 0x001F001F) << 3;\ |
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162 | ; gb = g | b;\ |
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163 | ; p0 = (gb & 0x0000FFFF) | ((v & 0x0000F800) << 8);\ |
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164 | ; p1 = (gb >> 16) | ((v & 0xF8000000) >> 8);\ |
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165 | ;} |
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166 | |||
167 | ;static void ZB_copyFrameBufferRGB32(ZBuffer * zb, |
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168 | ; void *buf, |
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169 | ; int linesize) |
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170 | ;{ |
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171 | ; unsigned short *q; |
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172 | ; unsigned int *p, *p1, v, w0, w1; |
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173 | ; int y, n; |
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6172 | IgorA | 174 | |
5153 | IgorA | 175 | ; q = zb->pbuf; |
176 | ; p1 = (unsigned int *) buf; |
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6172 | IgorA | 177 | |
5153 | IgorA | 178 | ; for (y = 0; y < zb->ysize; y++) { |
179 | ; p = p1; |
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180 | ; n = zb->xsize >> 2; |
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181 | ; do { |
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182 | ; v = *(unsigned int *) q; |
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183 | ;#if BYTE_ORDER == BIG_ENDIAN |
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184 | ; RGB16_TO_RGB32(w1, w0, v); |
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185 | ;#else |
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186 | ; RGB16_TO_RGB32(w0, w1, v); |
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187 | ;#endif |
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188 | ; p[0] = w0; |
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189 | ; p[1] = w1; |
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6172 | IgorA | 190 | |
5153 | IgorA | 191 | ; v = *(unsigned int *) (q + 2); |
192 | ;#if BYTE_ORDER == BIG_ENDIAN |
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193 | ; RGB16_TO_RGB32(w1, w0, v); |
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194 | ;#else |
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195 | ; RGB16_TO_RGB32(w0, w1, v); |
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196 | ;#endif |
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197 | ; p[2] = w0; |
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198 | ; p[3] = w1; |
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6172 | IgorA | 199 | |
5153 | IgorA | 200 | ; q += 4; |
201 | ; p += 4; |
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202 | ; } while (--n > 0); |
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6172 | IgorA | 203 | |
5153 | IgorA | 204 | ; p1 += linesize; |
205 | ; } |
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206 | ;} |
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207 | |||
208 | ;#endif |
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209 | |||
210 | ;/* 24 bit packed pixel handling */ |
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211 | |||
212 | ;#ifdef TGL_FEATURE_24_BITS |
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213 | |||
214 | ;/* order: RGBR GBRG BRGB */ |
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215 | |||
216 | ;/* XXX: packed pixel 24 bit support not tested */ |
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217 | ;/* XXX: big endian case not optimised */ |
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218 | |||
219 | ;#if BYTE_ORDER == BIG_ENDIAN |
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220 | |||
221 | ;#define RGB16_TO_RGB24(p0,p1,p2,v1,v2)\ |
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222 | ;{\ |
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223 | ; unsigned int r1,g1,b1,gb1,g2,b2,gb2;\ |
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224 | ; v1 = (v1 << 16) | (v1 >> 16);\ |
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225 | ; v2 = (v2 << 16) | (v2 >> 16);\ |
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226 | ; r1 = (v1 & 0xF800F800);\ |
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227 | ; g1 = (v1 & 0x07E007E0) << 5;\ |
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228 | ; b1 = (v1 & 0x001F001F) << 3;\ |
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229 | ; gb1 = g1 | b1;\ |
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230 | ; p0 = ((gb1 & 0x0000FFFF) << 8) | (r1 << 16) | (r1 >> 24);\ |
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231 | ; g2 = (v2 & 0x07E007E0) << 5;\ |
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232 | ; b2 = (v2 & 0x001F001F) << 3;\ |
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233 | ; gb2 = g2 | b2;\ |
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234 | ; p1 = (gb1 & 0xFFFF0000) | (v2 & 0xF800) | ((gb2 >> 8) & 0xff);\ |
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235 | ; p2 = (gb2 << 24) | ((v2 & 0xF8000000) >> 8) | (gb2 >> 16);\ |
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236 | ;} |
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237 | |||
238 | ;#else |
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239 | |||
240 | ;#define RGB16_TO_RGB24(p0,p1,p2,v1,v2)\ |
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241 | ;{\ |
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242 | ; unsigned int r1,g1,b1,gb1,g2,b2,gb2;\ |
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243 | ; r1 = (v1 & 0xF800F800);\ |
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244 | ; g1 = (v1 & 0x07E007E0) << 5;\ |
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245 | ; b1 = (v1 & 0x001F001F) << 3;\ |
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246 | ; gb1 = g1 | b1;\ |
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247 | ; p0 = ((gb1 & 0x0000FFFF) << 8) | (r1 << 16) | (r1 >> 24);\ |
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248 | ; g2 = (v2 & 0x07E007E0) << 5;\ |
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249 | ; b2 = (v2 & 0x001F001F) << 3;\ |
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250 | ; gb2 = g2 | b2;\ |
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251 | ; p1 = (gb1 & 0xFFFF0000) | (v2 & 0xF800) | ((gb2 >> 8) & 0xff);\ |
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252 | ; p2 = (gb2 << 24) | ((v2 & 0xF8000000) >> 8) | (gb2 >> 16);\ |
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253 | ;} |
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254 | |||
255 | ;#endif |
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256 | |||
257 | ;static void ZB_copyFrameBufferRGB24(ZBuffer * zb, |
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258 | ; void *buf, int linesize) |
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259 | ;{ |
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260 | ; unsigned short *q; |
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261 | ; unsigned int *p, *p1, w0, w1, w2, v0, v1; |
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262 | ; int y, n; |
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6172 | IgorA | 263 | |
5153 | IgorA | 264 | ; q = zb->pbuf; |
265 | ; p1 = (unsigned int *) buf; |
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266 | ; linesize = linesize * 3; |
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6172 | IgorA | 267 | |
5153 | IgorA | 268 | ; for (y = 0; y < zb->ysize; y++) { |
269 | ; p = p1; |
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270 | ; n = zb->xsize >> 2; |
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271 | ; do { |
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272 | ; v0 = *(unsigned int *) q; |
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273 | ; v1 = *(unsigned int *) (q + 2); |
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274 | ; RGB16_TO_RGB24(w0, w1, w2, v0, v1); |
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275 | ; p[0] = w0; |
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276 | ; p[1] = w1; |
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277 | ; p[2] = w2; |
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278 | |||
279 | ; q += 4; |
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280 | ; p += 3; |
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281 | ; } while (--n > 0); |
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282 | ; |
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283 | ; (char *) p1 += linesize; |
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284 | ; } |
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285 | ;} |
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286 | |||
287 | ;#endif |
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288 | |||
289 | ;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf, |
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290 | ; int linesize) |
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291 | ;{ |
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292 | ; switch (zb->mode) { |
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293 | ;#ifdef TGL_FEATURE_32_BITS |
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294 | ; case ZB_MODE_RGBA: |
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295 | ; ZB_copyFrameBufferRGB32(zb, buf, linesize >> 1); |
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296 | ; break; |
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297 | ;#endif |
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298 | ;#ifdef TGL_FEATURE_24_BITS |
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299 | ; case ZB_MODE_RGB24: |
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300 | ; ZB_copyFrameBufferRGB24(zb, buf, linesize >> 1); |
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301 | ; break; |
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302 | ;#endif |
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303 | ; default: |
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304 | ; assert(0); |
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305 | ; } |
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306 | ;} |
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307 | |||
308 | ;#endif /* TGL_FEATURE_RENDER_BITS == 16 */ |
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309 | |||
310 | ;#if TGL_FEATURE_RENDER_BITS == 24 |
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311 | |||
312 | ;#define RGB24_TO_RGB16(r, g, b) \ |
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313 | ; ((((r) >> 3) << 11) | (((g) >> 2) << 5) | ((b) >> 3)) |
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314 | |||
315 | ;/* XXX: not optimized */ |
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316 | ;static void ZB_copyFrameBuffer5R6G5B(ZBuffer * zb, |
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317 | ; void *buf, int linesize) |
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318 | ;{ |
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319 | ; PIXEL *q; |
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320 | ; unsigned short *p, *p1; |
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321 | ; int y, n; |
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6172 | IgorA | 322 | |
5153 | IgorA | 323 | ; q = zb->pbuf; |
324 | ; p1 = (unsigned short *) buf; |
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6172 | IgorA | 325 | |
5153 | IgorA | 326 | ; for (y = 0; y < zb->ysize; y++) { |
327 | ; p = p1; |
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328 | ; n = zb->xsize >> 2; |
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329 | ; do { |
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330 | ; p[0] = RGB24_TO_RGB16(q[0], q[1], q[2]); |
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331 | ; p[1] = RGB24_TO_RGB16(q[3], q[4], q[5]); |
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332 | ; p[2] = RGB24_TO_RGB16(q[6], q[7], q[8]); |
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333 | ; p[3] = RGB24_TO_RGB16(q[9], q[10], q[11]); |
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334 | ; q = (PIXEL *)((char *)q + 4 * PSZB); |
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335 | ; p += 4; |
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336 | ; } while (--n > 0); |
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337 | ; p1 = (unsigned short *)((char *)p1 + linesize); |
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338 | ; } |
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339 | ;} |
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340 | |||
341 | ;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf, |
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342 | ; int linesize) |
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343 | ;{ |
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344 | ; switch (zb->mode) { |
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345 | ;#ifdef TGL_FEATURE_24_BITS |
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346 | ; case ZB_MODE_RGB24: |
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347 | ; ZB_copyBuffer(zb, buf, linesize); |
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348 | ; break; |
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349 | ;#endif |
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350 | ; default: |
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351 | ; assert(0); |
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352 | ; } |
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353 | ;} |
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354 | |||
355 | ;#endif /* TGL_FEATURE_RENDER_BITS == 24 */ |
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356 | |||
357 | ;#if TGL_FEATURE_RENDER_BITS == 32 |
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358 | |||
359 | ;#define RGB32_TO_RGB16(v) \ |
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360 | ; (((v >> 8) & 0xf800) | (((v) >> 5) & 0x07e0) | (((v) & 0xff) >> 3)) |
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361 | |||
362 | ;/* XXX: not optimized */ |
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363 | ;static void ZB_copyFrameBuffer5R6G5B(ZBuffer * zb, |
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364 | ; void *buf, int linesize) |
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365 | ;{ |
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366 | ; PIXEL *q; |
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367 | ; unsigned short *p, *p1; |
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368 | ; int y, n; |
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6172 | IgorA | 369 | |
5153 | IgorA | 370 | ; q = zb->pbuf; |
371 | ; p1 = (unsigned short *) buf; |
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6172 | IgorA | 372 | |
5153 | IgorA | 373 | ; for (y = 0; y < zb->ysize; y++) { |
374 | ; p = p1; |
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375 | ; n = zb->xsize >> 2; |
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376 | ; do { |
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377 | ; p[0] = RGB32_TO_RGB16(q[0]); |
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378 | ; p[1] = RGB32_TO_RGB16(q[1]); |
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379 | ; p[2] = RGB32_TO_RGB16(q[2]); |
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380 | ; p[3] = RGB32_TO_RGB16(q[3]); |
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381 | ; q += 4; |
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382 | ; p += 4; |
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383 | ; } while (--n > 0); |
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384 | ; p1 = (unsigned short *)((char *)p1 + linesize); |
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385 | ; } |
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386 | ;} |
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6172 | IgorA | 387 | |
5153 | IgorA | 388 | ;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf, |
389 | ; int linesize) |
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390 | ;{ |
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391 | ; switch (zb->mode) { |
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392 | ;#ifdef TGL_FEATURE_32_BITS |
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393 | ; case ZB_MODE_RGBA: |
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394 | ; ZB_copyBuffer(zb, buf, linesize); |
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395 | ; break; |
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396 | ;#endif |
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397 | ; default: |
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398 | ; assert(0); |
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399 | ; } |
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400 | ;} |
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6172 | IgorA | 401 | |
5153 | IgorA | 402 | ;#endif /* TGL_FEATURE_RENDER_BITS == 32 */ |
5159 | IgorA | 403 | |
404 | |||
5153 | IgorA | 405 | ; |
5159 | IgorA | 406 | ; adr must be aligned on an 'int' |
5153 | IgorA | 407 | ; |
6172 | IgorA | 408 | ;destroy: |
409 | ; ecx, edi |
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410 | align 16 |
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411 | proc memset_s uses eax, adr:dword, val:dword, count:dword |
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5159 | IgorA | 412 | mov eax,[val] |
413 | mov di,ax |
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414 | ror eax,16 |
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415 | mov ax,di |
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416 | mov ecx,[count] |
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417 | shr ecx,1 |
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418 | mov edi,[adr] |
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419 | rep stosd |
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420 | |||
421 | bt dword[count],0 |
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422 | jnc @f |
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423 | stosw |
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424 | @@: |
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425 | ret |
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426 | endp |
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427 | |||
6172 | IgorA | 428 | align 16 |
5159 | IgorA | 429 | proc memset_l uses eax ecx edi, adr:dword, val:dword, count:dword |
430 | mov eax,[val] |
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431 | mov ecx,[count] |
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432 | mov edi,[adr] |
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433 | rep stosd |
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434 | ret |
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435 | endp |
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436 | |||
437 | ; count must be a multiple of 4 and >= 4 |
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6172 | IgorA | 438 | ;destroy: |
439 | ; edi, esi |
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440 | align 16 |
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441 | proc memset_RGB24 uses eax ecx, adr:dword, r:dword, g:dword, b:dword, count:dword |
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5159 | IgorA | 442 | mov esi,[adr] |
443 | mov eax,[r] ;копируем в буфер первые 12 байт (минимальное число кратное 3 и 4) |
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444 | mov byte[esi],al |
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445 | mov byte[esi+3],al |
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446 | mov byte[esi+6],al |
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447 | mov byte[esi+9],al |
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448 | mov eax,[g] |
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449 | mov byte[esi+1],al |
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450 | mov byte[esi+4],al |
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451 | mov byte[esi+7],al |
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452 | mov byte[esi+10],al |
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453 | mov eax,[b] |
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454 | mov byte[esi+2],al |
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455 | mov byte[esi+5],al |
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456 | mov byte[esi+8],al |
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457 | mov byte[esi+11],al |
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458 | |||
459 | mov ecx,[count] |
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460 | shr ecx,2 |
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461 | cmp ecx,1 |
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462 | jle .end_f ;если ширина буфера меньше 12 байт, то выходим |
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463 | dec ecx |
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464 | mov edi,esi |
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465 | add edi,12 |
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466 | |||
467 | mov eax,[esi] |
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468 | cmp eax,[esi+4] |
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469 | jne @f |
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470 | ;если r=g и g=b и b=r |
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471 | mov esi,ecx |
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472 | shl ecx,2 |
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473 | sub ecx,esi ;ecx*=3 |
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474 | rep stosd |
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475 | jmp .end_f |
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6172 | IgorA | 476 | align 16 |
477 | @@: ;если r!=g или g!=b или b!=r |
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5159 | IgorA | 478 | movsd |
479 | movsd |
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480 | movsd |
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481 | sub esi,12 |
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482 | loop @b |
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483 | .end_f: |
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484 | ret |
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485 | endp |
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486 | |||
6172 | IgorA | 487 | align 16 |
488 | proc ZB_clear uses eax ebx ecx edi esi, zb:dword, clear_z:dword, z:dword,\ |
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489 | clear_color:dword, r:dword, g:dword, b:dword |
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5159 | IgorA | 490 | ;if TGL_FEATURE_RENDER_BITS != 24 |
491 | ; color dd ? |
||
492 | ;end if |
||
493 | |||
494 | mov eax,[zb] |
||
495 | cmp dword[clear_z],0 |
||
496 | je @f |
||
497 | mov ebx,[eax+offs_zbuf_xsize] |
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498 | imul ebx,[eax+offs_zbuf_ysize] |
||
499 | stdcall memset_s, [eax+offs_zbuf_zbuf],[z],ebx |
||
500 | @@: |
||
501 | cmp dword[clear_color],0 |
||
502 | je @f |
||
503 | if TGL_FEATURE_RENDER_BITS eq 24 |
||
504 | mov ebx,[eax+offs_zbuf_xsize] |
||
505 | push ebx |
||
506 | mov ebx,[b] |
||
507 | shr ebx,8 |
||
508 | push ebx |
||
509 | mov ebx,[g] |
||
510 | shr ebx,8 |
||
511 | push ebx |
||
512 | mov ebx,[r] |
||
513 | shr ebx,8 |
||
514 | push ebx |
||
515 | add esp,16 |
||
516 | end if |
||
517 | mov ebx,[eax+offs_zbuf_pbuf] |
||
518 | mov ecx,[eax+offs_zbuf_ysize] |
||
6172 | IgorA | 519 | align 4 |
5159 | IgorA | 520 | .cycle_0: |
521 | if TGL_FEATURE_RENDER_BITS eq 32 |
||
6172 | IgorA | 522 | ;color = RGB_TO_PIXEL(r, g, b) |
523 | ;memset_l(ebx, color, zb->xsize) |
||
5159 | IgorA | 524 | end if |
525 | if TGL_FEATURE_RENDER_BITS eq 24 |
||
526 | sub esp,16 |
||
527 | stdcall memset_RGB24,ebx |
||
528 | end if |
||
529 | add ebx,[eax+offs_zbuf_linesize] |
||
530 | loop .cycle_0 |
||
531 | @@: |
||
532 | ret |
||
533 | endp>>><>><>>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>>><>><>><>> |