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1 #include <malloc.h>
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94
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2 #include <stdio.h>
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3 #include <stdlib.h>
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4 #include <string.h>
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5 #include <spu_mfcio.h>
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6 #include "SpuDraw.h"
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7 #include "polygon_pack.h"
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109
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8 #include "SpanPack.h"
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9 #include "SpanPackList.h"
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94
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10 #include "error.h"
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99
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11 #include "CellScheduler.h"
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94
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12
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13 #define PIXELSIZE 11520 //32 line pixel size
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14
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109
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15 // 本来なら PPE から受け取る情報です
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16 #define FRAMEBUFFER_X 1920
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17 #define FRAMEBUFFER_Y 1080
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18
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19 // IMG_MAX_X x 8 が、spe が持てる 最大
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20 // 現在、1920x8の zBuf は持てない
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21 #define IMG_MAX_X 720
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22
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23 #define SPAN_PACK_LOAD 20
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24
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25 /**
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26 * SpanPack にある Span が持つ y 座標は
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27 * .. [-16 ~ -9] [-8 ~ -1] [0 ~ 7] [8 ~ 16] ..
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28 * のどれかの区域に入るように Pack されている。
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29 * sp->span[0].y から、その区域の一番上の y 座標を求める。
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30 */
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31 #define YTOP(y) (y &~(TEXTURE_SPLIT_PIXEL-1))
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32 #define YOFF(y) (y & (TEXTURE_SPLIT_PIXEL-1))
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33
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94
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34 SpuDraw::~SpuDraw(void)
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35 {
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36 //free(zRow);
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37 free(linebuf);
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38 }
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39
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40 void
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109
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41 SpuDraw::linebuf_init(int rgb)
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42 {
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43 int y = TEXTURE_SPLIT_PIXEL;
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44 int x = IMG_MAX_X;
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45
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46 linebuf = (int*)memalign(DEFAULT_ALIGNMENT, sizeof(int)*x*y);
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109
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47 #if 1
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48 // memset は 1 バイトで描き込むから
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49 // 0x12345678 とか渡しても 0x12 (0x78だったかな) でしか
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50 // 描かないんだなー
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51 memset(linebuf, rgb, sizeof(int)*x*y);
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102
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52 //bzero(linebuf, sizeof(int)*x*y);
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109
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53 #else
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54 for (int i = 0; i < x*y; i++) {
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55 linebuf[i] = rgb;
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56 }
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57 #endif
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58 }
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59
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60 void
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61 SpuDraw::zRow_init(void)
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62 {
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63 int y = TEXTURE_SPLIT_PIXEL;
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64 int x = IMG_MAX_X;
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65 float z = 65535.0f;
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66 int length = x*y;
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67
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68 zRow = (float*)malloc(sizeof(float)*length);
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69
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105
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70 #if 1
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71 vector float indx = {0.0f, 0.0f, 0.0f, 0.0f};
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72 vector float maxf = {z, z, z, z};
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73 vector float *vbuf;
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74
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75 int i;
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76 for (i = 0; i < length - 4; i += 4) {
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77 vbuf = (vector float*)&zRow[i];
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78 *vbuf = spu_madd(*vbuf, indx, maxf);
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105
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79 }
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109
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80
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81 for (; i < length; i++) {
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82 zRow[i] = z;
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83 }
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84 #else
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85 for (int i = 0; i < length; i++) {
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86 zRow[i] = z;
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87 }
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105
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88 #endif
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94
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89 }
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90
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91
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92 char*
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93 SpuDraw::get_pixel(int tx, int ty, void *texture_image)
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94 {
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95 //return (char*)texture_image->pixels+(texture_image->format->BytesPerPixel*((texture_image->w)*ty+tx));
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96 return (char*)texture_image+(3*((128)*ty+tx));
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94
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97 }
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98
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99 Uint32
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100 SpuDraw::get_rgb(int tx, int ty, void *texture)
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101 {
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102 Uint8 red, green, blue, alpha;
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103
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104 if (tx<0) tx = 0;
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105 if (128-1< tx) tx = 128-1 ;
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106 if (ty<0) ty = 0;
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107 if (128-1< ty) ty = 128-1 ;
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108
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109 char *p = get_pixel(tx,ty,texture);
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110
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111 blue = (Uint8) p[0];
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112 green = (Uint8) p[1];
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113 red = (Uint8) p[2];
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114 alpha = 255;
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115
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102
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116 return (red & 0xff) * 0x10000 + (green & 0xff) * 0x100
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117 + (blue & 0xff) + (alpha << 24);
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118 }
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119
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120 int
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121 SpuDraw::run(void *rbuf, void *writebuf)
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122 {
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123 SpanPack *sp = (SpanPack*)rbuf;
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124 SpanPack *next_sp = (SpanPack*)memalign(16, sizeof(SpanPack));
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102
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125
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126 SpanPack *free_sp = next_sp; // free()用
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127 SpanPack *tmp_sp = NULL;
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128 unsigned int fbdev_addr = task->out_addr;
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129 Span *span;
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130 int width = IMG_MAX_X;
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131 int linebuf_rgb;
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132
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133 zRow = NULL;
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134
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135 dma_tags = 0;
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136
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137 __debug("[SpuDraw]:%s\n", __FUNCTION__);
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138
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139 int render_y = 0;
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140
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141 render_y = sp->span[0].y;
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142 render_y = YTOP(render_y);
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143 //render_y += FRAMEBUFFER_Y/2;
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144
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145 if (sp->info.size < 0) {
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146 // 塗りつぶしSpan
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147 // あとでちゃんと定義すべし
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148 // むしろ別Class で作る方がいいか。
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149 linebuf_rgb = 0xffffff;
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150 linebuf_init(linebuf_rgb);
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151 goto WRITE;
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152 } else {
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153 linebuf_rgb = 0x000000;
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154 linebuf_init(linebuf_rgb);
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155 }
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156 zRow_init();
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157
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158
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109
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159 /**
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160 * SpanPack->next が存在する場合が有るので
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161 * 現在の SpanPack を処理してる間に
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162 * 次の SpanPack の DMA 転送を行っています
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163 */
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164 do {
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165 if (sp->next != NULL) {
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166 connector->dma_load(next_sp, (uint32)sp->next, sizeof(SpanPack),
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167 SPAN_PACK_LOAD);
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168 } else {
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169 next_sp = NULL;
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170 }
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171
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172 for (int t = 0; t < sp->info.size; t++) {
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173 span = &sp->span[t];
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174
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175 int end = span->length_x;
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176 Uint32 rgb = 0x00ff00;
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177 float tex1 = span->tex_x1;
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178 float tex2 = span->tex_x2;
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179 float tey1 = span->tex_y1;
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180 float tey2 = span->tex_y2;
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181 int tex_xpos;
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182 int tex_ypos;
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183 int tex_zpos;
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184 int x = span->x;
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185 int y = span->y;
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186 float z = span->start_z;
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187 float zpos = span->end_z;
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188 float tex_x, tex_y, tex_z;
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189
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190 if (end == 1) {
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191 tex_xpos = (int)((span->tex_height-1) * tex1);
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192 tex_ypos = (int)((span->tex_width-1) * tey1);
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193 tex_zpos = (int)z;
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194
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195 if (zpos < zRow[x + (width * YOFF(y))]) {
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196 rgb = get_rgb(tex_xpos, tex_ypos, CellScheduler::tex);
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197 zRow[x + (width * YOFF(y))] = zpos;
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198 linebuf[x + (width * YOFF(y))] = rgb;
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199 }
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200 } else {
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201 for (int j = 0; j < end; j++) {
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202 tex_x = tex1*(end-1-j)/(end-1) + tex2*j/(end-1);
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203 tex_y = tey1*(end-1-j)/(end-1) + tey2*j/(end-1);
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204 tex_z = z*(end-1-j)/(end-1) + zpos*j/(end-1);
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205 if (tex_x > 1) tex_x = 1;
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206 if (tex_y > 1) tex_y = 1;
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207 tex_xpos = (int)((span->tex_height-1) * tex_x);
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208 tex_ypos = (int)((span->tex_width-1) * tex_y);
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209
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210 if (tex_z < zRow[x + j + (width * YOFF(y))]) {
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100
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211 rgb = get_rgb(tex_xpos,tex_ypos,CellScheduler::tex);
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212 zRow[x + j + (width * YOFF(y))] = tex_z;
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213 linebuf[x + j + (width * YOFF(y))] = rgb;
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214 }
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215 }
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216 }
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217 }
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218
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219 connector->dma_wait(SPAN_PACK_LOAD);
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220 tmp_sp = sp;
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221 sp = next_sp;
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222 next_sp = tmp_sp;
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223 } while (sp);
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224
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225 WRITE:
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226 writebuffer(fbdev_addr, render_y);
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227
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228 free(rbuf);
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229 free(free_sp);
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230 if (zRow != NULL) free(zRow);
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102
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231
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232 return 0;
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233 }
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234
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235 void
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109
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236 SpuDraw::writebuffer(unsigned int fbdev_addr, int y)
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237 {
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238 int end_y;
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239 int start_y;
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240
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241 // 画面上の領域に描き込まないように
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242 // ・・・なんか変だな。
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243 // とりあえず if 文どうにかしようぜ俺
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244
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245 if (y < 0) {
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246 if (y + TEXTURE_SPLIT_PIXEL < 0) {
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247 return;
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248 } else {
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249 start_y = -y;
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250 }
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251 } else {
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252 start_y = 0;
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253 }
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254
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255 // 画面下の領域に書き込まないように
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256 end_y = FRAMEBUFFER_Y - y + TEXTURE_SPLIT_PIXEL;
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257 end_y = (end_y < 0) ? TEXTURE_SPLIT_PIXEL + end_y : TEXTURE_SPLIT_PIXEL;
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258
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259 for (int i = start_y; i < end_y; i++) {
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260 spu_mfcdma32(&linebuf[i*IMG_MAX_X], fbdev_addr + (4*FRAMEBUFFER_X*(y+i)),
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261 sizeof(int)*IMG_MAX_X, i+5, MFC_PUT_CMD);
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262 dma_tags |= 1 << (i+5);
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263 }
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94
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264 }
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265
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102
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266 void
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267 SpuDraw::write(void)
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268 {
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269 SchedTask::write();
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270
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105
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271 spu_writech(MFC_WrTagMask, dma_tags);
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272 spu_mfcstat(MFC_TAG_UPDATE_ALL);
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102
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273 }
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274
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275 SchedTask*
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276 createTask_spuDraw(TaskListPtr _taskList, TaskPtr _task,
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277 void *rbuff, void *wbuff, DmaManager *dma)
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278 {
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109
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279 rbuff = memalign(16, sizeof(SpanPack));
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280
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281 return new SpuDraw(_taskList, _task, rbuff, wbuff, dma);
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282 }
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