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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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10 | align 4 |
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11 | proc ZB_open uses ecx edi, xsize:dword, ysize:dword, mode:dword,\ |
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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_8_BITS eq 1 |
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34 | cmp eax,ZB_MODE_INDEX |
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35 | jne @f |
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36 | ;ZB_initDither(edi, nb_colors, color_indexes, color_table); |
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37 | jmp .end_s |
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38 | @@: |
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39 | end if |
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40 | if TGL_FEATURE_32_BITS eq 1 |
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41 | cmp eax,ZB_MODE_RGBA |
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42 | je .correct |
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43 | end if |
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44 | if TGL_FEATURE_24_BITS eq 1 |
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45 | cmp eax,ZB_MODE_RGB24 |
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46 | je .correct |
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47 | end if |
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48 | cmp eax,ZB_MODE_5R6G5B |
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49 | jne @f |
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50 | .correct: |
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51 | mov dword[edi+offs_zbuf_nb_colors],0 |
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52 | jmp .end_s |
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53 | @@: ;default: |
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54 | stdcall dbg_print,f_zb_opn,err_3 |
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55 | jmp .error |
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56 | .end_s: |
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57 | |||
58 | mov ecx,[edi+offs_zbuf_xsize] |
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59 | imul ecx,[edi+offs_zbuf_ysize] |
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5159 | IgorA | 60 | shl ecx,1 ;*= sizeof(unsigned short) |
5153 | IgorA | 61 | |
62 | stdcall gl_malloc, ecx |
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63 | mov [edi+offs_zbuf_zbuf],eax |
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64 | cmp eax,0 |
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65 | jne @f |
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66 | stdcall dbg_print,f_zb_opn,err_2 |
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67 | jmp .error |
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68 | @@: |
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69 | |||
70 | mov dword[edi+offs_zbuf_frame_buffer_allocated],0 |
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71 | mov dword[edi+offs_zbuf_pbuf],0 ;NULL |
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72 | |||
73 | mov dword[edi+offs_zbuf_current_texture],0 ;NULL |
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74 | |||
75 | mov eax,edi |
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76 | jmp .end_f |
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77 | .error: |
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78 | stdcall gl_free,edi |
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79 | xor eax,eax |
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80 | .end_f: |
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81 | ret |
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82 | endp |
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83 | |||
84 | ;void ZB_close(ZBuffer * zb) |
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85 | ;{ |
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86 | if TGL_FEATURE_8_BITS eq 1 |
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87 | ; if (zb->mode == ZB_MODE_INDEX) |
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88 | ; ZB_closeDither(zb); |
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89 | end if |
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90 | ; |
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91 | ; if (zb->frame_buffer_allocated) |
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92 | ; gl_free(zb->pbuf); |
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93 | ; |
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94 | ; gl_free(zb->zbuf); |
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95 | ; gl_free(zb); |
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96 | ;} |
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97 | |||
98 | align 4 |
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99 | proc ZB_resize uses eax ebx ecx edi esi, zb:dword, frame_buffer:dword, xsize:dword, ysize:dword |
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100 | mov ebx,[zb] |
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101 | |||
102 | ; xsize must be a multiple of 4 |
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103 | mov edi,[xsize] |
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104 | and edi,not 3 |
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105 | mov esi,[ysize] |
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106 | |||
107 | mov [ebx+offs_zbuf_xsize], edi |
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108 | mov [ebx+offs_zbuf_ysize], esi |
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109 | |||
110 | mov eax,edi |
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111 | imul eax,PSZB |
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112 | add eax,3 |
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113 | and eax,not 3 |
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114 | mov [ebx+offs_zbuf_linesize],eax ;zb.linesize = (xsize * PSZB + 3) & ~3 |
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115 | |||
116 | mov ecx,edi |
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117 | imul ecx,esi |
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5159 | IgorA | 118 | shl ecx,1 ;*= sizeof(unsigned short) |
5153 | IgorA | 119 | |
120 | stdcall gl_free,dword[ebx+offs_zbuf_zbuf] |
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121 | stdcall gl_malloc,ecx |
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122 | mov [ebx+offs_zbuf_zbuf],eax |
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123 | |||
124 | cmp dword[ebx+offs_zbuf_frame_buffer_allocated],0 |
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125 | je @f |
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126 | stdcall gl_free,dword[ebx+offs_zbuf_pbuf] |
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127 | @@: |
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128 | |||
129 | cmp dword[frame_buffer],0 |
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130 | jne .els_0 |
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131 | inc esi |
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132 | imul esi,dword[ebx+offs_zbuf_linesize] |
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133 | stdcall gl_malloc,esi |
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134 | mov dword[ebx+offs_zbuf_pbuf],eax |
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135 | mov dword[ebx+offs_zbuf_frame_buffer_allocated],1 |
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136 | jmp @f |
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137 | .els_0: |
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138 | mov eax,[frame_buffer] |
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139 | mov dword[ebx+offs_zbuf_pbuf],eax |
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140 | mov dword[ebx+offs_zbuf_frame_buffer_allocated],0 |
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141 | @@: |
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142 | ret |
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143 | endp |
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144 | |||
145 | ;static void ZB_copyBuffer(ZBuffer * zb, |
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146 | ; void *buf, |
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147 | ; int linesize) |
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148 | ;{ |
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149 | ; unsigned char *p1; |
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150 | ; PIXEL *q; |
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151 | ; int y, n; |
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152 | ; |
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153 | ; q = zb->pbuf; |
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154 | ; p1 = buf; |
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155 | ; n = zb->xsize * PSZB; |
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156 | ; for (y = 0; y < zb->ysize; y++) { |
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157 | ; memcpy(p1, q, n); |
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158 | ; p1 += linesize; |
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159 | ; q = (PIXEL *) ((char *) q + zb->linesize); |
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160 | ; } |
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161 | ;} |
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162 | ; |
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163 | ;#if TGL_FEATURE_RENDER_BITS == 16 |
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164 | |||
165 | ;/* 32 bpp copy */ |
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166 | |||
167 | ;#ifdef TGL_FEATURE_32_BITS |
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168 | |||
169 | ;#define RGB16_TO_RGB32(p0,p1,v)\ |
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170 | ;{\ |
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171 | ; unsigned int g,b,gb;\ |
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172 | ; g = (v & 0x07E007E0) << 5;\ |
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173 | ; b = (v & 0x001F001F) << 3;\ |
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174 | ; gb = g | b;\ |
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175 | ; p0 = (gb & 0x0000FFFF) | ((v & 0x0000F800) << 8);\ |
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176 | ; p1 = (gb >> 16) | ((v & 0xF8000000) >> 8);\ |
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177 | ;} |
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178 | |||
179 | ;static void ZB_copyFrameBufferRGB32(ZBuffer * zb, |
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180 | ; void *buf, |
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181 | ; int linesize) |
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182 | ;{ |
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183 | ; unsigned short *q; |
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184 | ; unsigned int *p, *p1, v, w0, w1; |
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185 | ; int y, n; |
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186 | ; |
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187 | ; q = zb->pbuf; |
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188 | ; p1 = (unsigned int *) buf; |
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189 | ; |
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190 | ; for (y = 0; y < zb->ysize; y++) { |
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191 | ; p = p1; |
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192 | ; n = zb->xsize >> 2; |
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193 | ; do { |
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194 | ; v = *(unsigned int *) q; |
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195 | ;#if BYTE_ORDER == BIG_ENDIAN |
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196 | ; RGB16_TO_RGB32(w1, w0, v); |
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197 | ;#else |
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198 | ; RGB16_TO_RGB32(w0, w1, v); |
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199 | ;#endif |
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200 | ; p[0] = w0; |
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201 | ; p[1] = w1; |
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202 | ; |
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203 | ; v = *(unsigned int *) (q + 2); |
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204 | ;#if BYTE_ORDER == BIG_ENDIAN |
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205 | ; RGB16_TO_RGB32(w1, w0, v); |
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206 | ;#else |
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207 | ; RGB16_TO_RGB32(w0, w1, v); |
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208 | ;#endif |
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209 | ; p[2] = w0; |
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210 | ; p[3] = w1; |
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211 | ; |
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212 | ; q += 4; |
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213 | ; p += 4; |
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214 | ; } while (--n > 0); |
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215 | ; |
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216 | ; p1 += linesize; |
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217 | ; } |
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218 | ;} |
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219 | |||
220 | ;#endif |
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221 | |||
222 | ;/* 24 bit packed pixel handling */ |
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223 | |||
224 | ;#ifdef TGL_FEATURE_24_BITS |
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225 | |||
226 | ;/* order: RGBR GBRG BRGB */ |
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227 | |||
228 | ;/* XXX: packed pixel 24 bit support not tested */ |
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229 | ;/* XXX: big endian case not optimised */ |
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230 | |||
231 | ;#if BYTE_ORDER == BIG_ENDIAN |
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232 | |||
233 | ;#define RGB16_TO_RGB24(p0,p1,p2,v1,v2)\ |
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234 | ;{\ |
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235 | ; unsigned int r1,g1,b1,gb1,g2,b2,gb2;\ |
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236 | ; v1 = (v1 << 16) | (v1 >> 16);\ |
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237 | ; v2 = (v2 << 16) | (v2 >> 16);\ |
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238 | ; r1 = (v1 & 0xF800F800);\ |
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239 | ; g1 = (v1 & 0x07E007E0) << 5;\ |
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240 | ; b1 = (v1 & 0x001F001F) << 3;\ |
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241 | ; gb1 = g1 | b1;\ |
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242 | ; p0 = ((gb1 & 0x0000FFFF) << 8) | (r1 << 16) | (r1 >> 24);\ |
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243 | ; g2 = (v2 & 0x07E007E0) << 5;\ |
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244 | ; b2 = (v2 & 0x001F001F) << 3;\ |
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245 | ; gb2 = g2 | b2;\ |
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246 | ; p1 = (gb1 & 0xFFFF0000) | (v2 & 0xF800) | ((gb2 >> 8) & 0xff);\ |
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247 | ; p2 = (gb2 << 24) | ((v2 & 0xF8000000) >> 8) | (gb2 >> 16);\ |
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248 | ;} |
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249 | |||
250 | ;#else |
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251 | |||
252 | ;#define RGB16_TO_RGB24(p0,p1,p2,v1,v2)\ |
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253 | ;{\ |
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254 | ; unsigned int r1,g1,b1,gb1,g2,b2,gb2;\ |
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255 | ; r1 = (v1 & 0xF800F800);\ |
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256 | ; g1 = (v1 & 0x07E007E0) << 5;\ |
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257 | ; b1 = (v1 & 0x001F001F) << 3;\ |
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258 | ; gb1 = g1 | b1;\ |
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259 | ; p0 = ((gb1 & 0x0000FFFF) << 8) | (r1 << 16) | (r1 >> 24);\ |
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260 | ; g2 = (v2 & 0x07E007E0) << 5;\ |
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261 | ; b2 = (v2 & 0x001F001F) << 3;\ |
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262 | ; gb2 = g2 | b2;\ |
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263 | ; p1 = (gb1 & 0xFFFF0000) | (v2 & 0xF800) | ((gb2 >> 8) & 0xff);\ |
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264 | ; p2 = (gb2 << 24) | ((v2 & 0xF8000000) >> 8) | (gb2 >> 16);\ |
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265 | ;} |
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266 | |||
267 | ;#endif |
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268 | |||
269 | ;static void ZB_copyFrameBufferRGB24(ZBuffer * zb, |
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270 | ; void *buf, int linesize) |
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271 | ;{ |
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272 | ; unsigned short *q; |
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273 | ; unsigned int *p, *p1, w0, w1, w2, v0, v1; |
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274 | ; int y, n; |
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275 | ; |
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276 | ; q = zb->pbuf; |
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277 | ; p1 = (unsigned int *) buf; |
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278 | ; linesize = linesize * 3; |
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279 | ; |
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280 | ; for (y = 0; y < zb->ysize; y++) { |
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281 | ; p = p1; |
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282 | ; n = zb->xsize >> 2; |
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283 | ; do { |
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284 | ; v0 = *(unsigned int *) q; |
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285 | ; v1 = *(unsigned int *) (q + 2); |
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286 | ; RGB16_TO_RGB24(w0, w1, w2, v0, v1); |
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287 | ; p[0] = w0; |
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288 | ; p[1] = w1; |
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289 | ; p[2] = w2; |
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290 | |||
291 | ; q += 4; |
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292 | ; p += 3; |
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293 | ; } while (--n > 0); |
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294 | ; |
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295 | ; (char *) p1 += linesize; |
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296 | ; } |
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297 | ;} |
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298 | |||
299 | ;#endif |
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300 | |||
301 | ;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf, |
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302 | ; int linesize) |
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303 | ;{ |
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304 | ; switch (zb->mode) { |
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305 | ;#ifdef TGL_FEATURE_8_BITS |
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306 | ; case ZB_MODE_INDEX: |
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307 | ; ZB_ditherFrameBuffer(zb, buf, linesize >> 1); |
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308 | ; break; |
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309 | ;#endif |
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310 | ;#ifdef TGL_FEATURE_16_BITS |
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311 | ; case ZB_MODE_5R6G5B: |
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312 | ; ZB_copyBuffer(zb, buf, linesize); |
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313 | ; break; |
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314 | ;#endif |
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315 | ;#ifdef TGL_FEATURE_32_BITS |
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316 | ; case ZB_MODE_RGBA: |
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317 | ; ZB_copyFrameBufferRGB32(zb, buf, linesize >> 1); |
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318 | ; break; |
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319 | ;#endif |
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320 | ;#ifdef TGL_FEATURE_24_BITS |
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321 | ; case ZB_MODE_RGB24: |
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322 | ; ZB_copyFrameBufferRGB24(zb, buf, linesize >> 1); |
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323 | ; break; |
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324 | ;#endif |
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325 | ; default: |
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326 | ; assert(0); |
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327 | ; } |
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328 | ;} |
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329 | |||
330 | ;#endif /* TGL_FEATURE_RENDER_BITS == 16 */ |
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331 | |||
332 | ;#if TGL_FEATURE_RENDER_BITS == 24 |
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333 | |||
334 | ;#define RGB24_TO_RGB16(r, g, b) \ |
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335 | ; ((((r) >> 3) << 11) | (((g) >> 2) << 5) | ((b) >> 3)) |
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336 | |||
337 | ;/* XXX: not optimized */ |
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338 | ;static void ZB_copyFrameBuffer5R6G5B(ZBuffer * zb, |
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339 | ; void *buf, int linesize) |
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340 | ;{ |
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341 | ; PIXEL *q; |
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342 | ; unsigned short *p, *p1; |
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343 | ; int y, n; |
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344 | ; |
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345 | ; q = zb->pbuf; |
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346 | ; p1 = (unsigned short *) buf; |
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347 | ; |
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348 | ; for (y = 0; y < zb->ysize; y++) { |
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349 | ; p = p1; |
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350 | ; n = zb->xsize >> 2; |
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351 | ; do { |
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352 | ; p[0] = RGB24_TO_RGB16(q[0], q[1], q[2]); |
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353 | ; p[1] = RGB24_TO_RGB16(q[3], q[4], q[5]); |
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354 | ; p[2] = RGB24_TO_RGB16(q[6], q[7], q[8]); |
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355 | ; p[3] = RGB24_TO_RGB16(q[9], q[10], q[11]); |
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356 | ; q = (PIXEL *)((char *)q + 4 * PSZB); |
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357 | ; p += 4; |
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358 | ; } while (--n > 0); |
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359 | ; p1 = (unsigned short *)((char *)p1 + linesize); |
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360 | ; } |
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361 | ;} |
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362 | |||
363 | ;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf, |
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364 | ; int linesize) |
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365 | ;{ |
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366 | ; switch (zb->mode) { |
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367 | ;#ifdef TGL_FEATURE_16_BITS |
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368 | ; case ZB_MODE_5R6G5B: |
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369 | ; ZB_copyFrameBuffer5R6G5B(zb, buf, linesize); |
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370 | ; break; |
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371 | ;#endif |
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372 | ;#ifdef TGL_FEATURE_24_BITS |
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373 | ; case ZB_MODE_RGB24: |
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374 | ; ZB_copyBuffer(zb, buf, linesize); |
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375 | ; break; |
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376 | ;#endif |
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377 | ; default: |
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378 | ; assert(0); |
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379 | ; } |
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380 | ;} |
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381 | |||
382 | ;#endif /* TGL_FEATURE_RENDER_BITS == 24 */ |
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383 | |||
384 | ;#if TGL_FEATURE_RENDER_BITS == 32 |
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385 | |||
386 | ;#define RGB32_TO_RGB16(v) \ |
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387 | ; (((v >> 8) & 0xf800) | (((v) >> 5) & 0x07e0) | (((v) & 0xff) >> 3)) |
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388 | |||
389 | ;/* XXX: not optimized */ |
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390 | ;static void ZB_copyFrameBuffer5R6G5B(ZBuffer * zb, |
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391 | ; void *buf, int linesize) |
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392 | ;{ |
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393 | ; PIXEL *q; |
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394 | ; unsigned short *p, *p1; |
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395 | ; int y, n; |
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396 | ; |
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397 | ; q = zb->pbuf; |
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398 | ; p1 = (unsigned short *) buf; |
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399 | ; |
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400 | ; for (y = 0; y < zb->ysize; y++) { |
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401 | ; p = p1; |
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402 | ; n = zb->xsize >> 2; |
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403 | ; do { |
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404 | ; p[0] = RGB32_TO_RGB16(q[0]); |
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405 | ; p[1] = RGB32_TO_RGB16(q[1]); |
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406 | ; p[2] = RGB32_TO_RGB16(q[2]); |
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407 | ; p[3] = RGB32_TO_RGB16(q[3]); |
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408 | ; q += 4; |
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409 | ; p += 4; |
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410 | ; } while (--n > 0); |
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411 | ; p1 = (unsigned short *)((char *)p1 + linesize); |
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412 | ; } |
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413 | ;} |
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414 | ; |
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415 | ;void ZB_copyFrameBuffer(ZBuffer * zb, void *buf, |
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416 | ; int linesize) |
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417 | ;{ |
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418 | ; switch (zb->mode) { |
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419 | ;#ifdef TGL_FEATURE_16_BITS |
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420 | ; case ZB_MODE_5R6G5B: |
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421 | ; ZB_copyFrameBuffer5R6G5B(zb, buf, linesize); |
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422 | ; break; |
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423 | ;#endif |
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424 | ;#ifdef TGL_FEATURE_32_BITS |
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425 | ; case ZB_MODE_RGBA: |
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426 | ; ZB_copyBuffer(zb, buf, linesize); |
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427 | ; break; |
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428 | ;#endif |
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429 | ; default: |
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430 | ; assert(0); |
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431 | ; } |
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432 | ;} |
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433 | ; |
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434 | ;#endif /* TGL_FEATURE_RENDER_BITS == 32 */ |
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5159 | IgorA | 435 | |
436 | |||
5153 | IgorA | 437 | ; |
5159 | IgorA | 438 | ; adr must be aligned on an 'int' |
5153 | IgorA | 439 | ; |
5159 | IgorA | 440 | align 4 |
441 | proc memset_s uses eax ecx edi, adr:dword, val:dword, count:dword |
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442 | mov eax,[val] |
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443 | mov di,ax |
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444 | ror eax,16 |
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445 | mov ax,di |
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446 | mov ecx,[count] |
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447 | shr ecx,1 |
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448 | mov edi,[adr] |
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449 | rep stosd |
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450 | |||
451 | bt dword[count],0 |
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452 | jnc @f |
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453 | stosw |
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454 | @@: |
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455 | ret |
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456 | endp |
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457 | |||
458 | align 4 |
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459 | proc memset_l uses eax ecx edi, adr:dword, val:dword, count:dword |
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460 | mov eax,[val] |
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461 | mov ecx,[count] |
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462 | mov edi,[adr] |
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463 | rep stosd |
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464 | ret |
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465 | endp |
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466 | |||
467 | ; count must be a multiple of 4 and >= 4 |
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468 | align 4 |
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469 | proc memset_RGB24 uses eax ecx edi esi, adr:dword, r:dword, g:dword, b:dword, count:dword |
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470 | mov esi,[adr] |
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471 | mov eax,[r] ;копируем в буфер первые 12 байт (минимальное число кратное 3 и 4) |
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472 | mov byte[esi],al |
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473 | mov byte[esi+3],al |
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474 | mov byte[esi+6],al |
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475 | mov byte[esi+9],al |
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476 | mov eax,[g] |
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477 | mov byte[esi+1],al |
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478 | mov byte[esi+4],al |
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479 | mov byte[esi+7],al |
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480 | mov byte[esi+10],al |
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481 | mov eax,[b] |
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482 | mov byte[esi+2],al |
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483 | mov byte[esi+5],al |
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484 | mov byte[esi+8],al |
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485 | mov byte[esi+11],al |
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486 | |||
487 | mov ecx,[count] |
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488 | shr ecx,2 |
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489 | cmp ecx,1 |
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490 | jle .end_f ;если ширина буфера меньше 12 байт, то выходим |
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491 | dec ecx |
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492 | mov edi,esi |
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493 | add edi,12 |
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494 | |||
495 | mov eax,[esi] |
||
496 | cmp eax,[esi+4] |
||
497 | jne @f |
||
498 | ;если r=g и g=b и b=r |
||
499 | mov esi,ecx |
||
500 | shl ecx,2 |
||
501 | sub ecx,esi ;ecx*=3 |
||
502 | rep stosd |
||
503 | jmp .end_f |
||
504 | @@: |
||
505 | |||
506 | ;если r!=g или g!=b или b!=r |
||
507 | @@: |
||
508 | movsd |
||
509 | movsd |
||
510 | movsd |
||
511 | sub esi,12 |
||
512 | loop @b |
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513 | .end_f: |
||
514 | ret |
||
515 | endp |
||
516 | |||
517 | align 4 |
||
518 | proc ZB_clear uses eax ebx ecx, zb:dword, clear_z:dword, z:dword, clear_color:dword,\ |
||
519 | r:dword, g:dword, b:dword |
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520 | ;if TGL_FEATURE_RENDER_BITS != 24 |
||
521 | ; color dd ? |
||
522 | ;end if |
||
523 | |||
524 | mov eax,[zb] |
||
525 | cmp dword[clear_z],0 |
||
526 | je @f |
||
527 | mov ebx,[eax+offs_zbuf_xsize] |
||
528 | imul ebx,[eax+offs_zbuf_ysize] |
||
529 | stdcall memset_s, [eax+offs_zbuf_zbuf],[z],ebx |
||
530 | @@: |
||
531 | cmp dword[clear_color],0 |
||
532 | je @f |
||
533 | if TGL_FEATURE_RENDER_BITS eq 24 |
||
534 | mov ebx,[eax+offs_zbuf_xsize] |
||
535 | push ebx |
||
536 | mov ebx,[b] |
||
537 | shr ebx,8 |
||
538 | push ebx |
||
539 | mov ebx,[g] |
||
540 | shr ebx,8 |
||
541 | push ebx |
||
542 | mov ebx,[r] |
||
543 | shr ebx,8 |
||
544 | push ebx |
||
545 | add esp,16 |
||
546 | end if |
||
547 | mov ebx,[eax+offs_zbuf_pbuf] |
||
548 | mov ecx,[eax+offs_zbuf_ysize] |
||
549 | .cycle_0: |
||
550 | if (TGL_FEATURE_RENDER_BITS eq 15) ;or (TGL_FEATURE_RENDER_BITS eq 16) |
||
551 | ;color = RGB_TO_PIXEL(r, g, b); |
||
552 | ;memset_s(ebx, color, zb->xsize); |
||
553 | end if |
||
554 | if TGL_FEATURE_RENDER_BITS eq 32 |
||
555 | ;color = RGB_TO_PIXEL(r, g, b); |
||
556 | ;memset_l(ebx, color, zb->xsize); |
||
557 | end if |
||
558 | if TGL_FEATURE_RENDER_BITS eq 24 |
||
559 | sub esp,16 |
||
560 | stdcall memset_RGB24,ebx |
||
561 | end if |
||
562 | add ebx,[eax+offs_zbuf_linesize] |
||
563 | loop .cycle_0 |
||
564 | @@: |
||
565 | ret |
||
566 | endp>>><>><>>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>>><>><>><>> |