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5564 | serge | 1 | /************************************************************************** |
2 | * |
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3 | * Copyright 2009 VMware, Inc. All Rights Reserved. |
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4 | * |
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5 | * Permission is hereby granted, free of charge, to any person obtaining a |
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6 | * copy of this software and associated documentation files (the |
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7 | * "Software"), to deal in the Software without restriction, including |
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8 | * without limitation the rights to use, copy, modify, merge, publish, |
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9 | * distribute, sub license, and/or sell copies of the Software, and to |
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10 | * permit persons to whom the Software is furnished to do so, subject to |
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11 | * the following conditions: |
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12 | * |
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13 | * The above copyright notice and this permission notice (including the |
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14 | * next paragraph) shall be included in all copies or substantial portions |
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15 | * of the Software. |
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16 | * |
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17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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20 | * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
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21 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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22 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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23 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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24 | * |
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25 | **************************************************************************/ |
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26 | |||
27 | /** |
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28 | * @file |
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29 | * Surface utility functions. |
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30 | * |
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31 | * @author Brian Paul |
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32 | */ |
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33 | |||
34 | |||
35 | #include "pipe/p_defines.h" |
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36 | #include "pipe/p_screen.h" |
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37 | #include "pipe/p_state.h" |
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38 | |||
39 | #include "util/u_format.h" |
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40 | #include "util/u_inlines.h" |
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41 | #include "util/u_rect.h" |
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42 | #include "util/u_surface.h" |
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43 | #include "util/u_pack_color.h" |
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44 | |||
45 | |||
46 | /** |
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47 | * Initialize a pipe_surface object. 'view' is considered to have |
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48 | * uninitialized contents. |
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49 | */ |
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50 | void |
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51 | u_surface_default_template(struct pipe_surface *surf, |
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52 | const struct pipe_resource *texture) |
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53 | { |
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54 | memset(surf, 0, sizeof(*surf)); |
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55 | |||
56 | surf->format = texture->format; |
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57 | } |
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58 | |||
59 | |||
60 | /** |
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61 | * Copy 2D rect from one place to another. |
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62 | * Position and sizes are in pixels. |
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63 | * src_stride may be negative to do vertical flip of pixels from source. |
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64 | */ |
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65 | void |
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66 | util_copy_rect(ubyte * dst, |
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67 | enum pipe_format format, |
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68 | unsigned dst_stride, |
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69 | unsigned dst_x, |
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70 | unsigned dst_y, |
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71 | unsigned width, |
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72 | unsigned height, |
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73 | const ubyte * src, |
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74 | int src_stride, |
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75 | unsigned src_x, |
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76 | unsigned src_y) |
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77 | { |
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78 | unsigned i; |
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79 | int src_stride_pos = src_stride < 0 ? -src_stride : src_stride; |
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80 | int blocksize = util_format_get_blocksize(format); |
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81 | int blockwidth = util_format_get_blockwidth(format); |
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82 | int blockheight = util_format_get_blockheight(format); |
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83 | |||
84 | assert(blocksize > 0); |
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85 | assert(blockwidth > 0); |
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86 | assert(blockheight > 0); |
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87 | |||
88 | dst_x /= blockwidth; |
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89 | dst_y /= blockheight; |
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90 | width = (width + blockwidth - 1)/blockwidth; |
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91 | height = (height + blockheight - 1)/blockheight; |
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92 | src_x /= blockwidth; |
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93 | src_y /= blockheight; |
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94 | |||
95 | dst += dst_x * blocksize; |
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96 | src += src_x * blocksize; |
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97 | dst += dst_y * dst_stride; |
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98 | src += src_y * src_stride_pos; |
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99 | width *= blocksize; |
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100 | |||
101 | if (width == dst_stride && width == src_stride) |
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102 | memcpy(dst, src, height * width); |
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103 | else { |
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104 | for (i = 0; i < height; i++) { |
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105 | memcpy(dst, src, width); |
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106 | dst += dst_stride; |
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107 | src += src_stride; |
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108 | } |
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109 | } |
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110 | } |
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111 | |||
112 | |||
113 | /** |
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114 | * Copy 3D box from one place to another. |
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115 | * Position and sizes are in pixels. |
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116 | */ |
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117 | void |
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118 | util_copy_box(ubyte * dst, |
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119 | enum pipe_format format, |
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120 | unsigned dst_stride, unsigned dst_slice_stride, |
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121 | unsigned dst_x, unsigned dst_y, unsigned dst_z, |
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122 | unsigned width, unsigned height, unsigned depth, |
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123 | const ubyte * src, |
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124 | int src_stride, unsigned src_slice_stride, |
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125 | unsigned src_x, unsigned src_y, unsigned src_z) |
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126 | { |
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127 | unsigned z; |
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128 | dst += dst_z * dst_slice_stride; |
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129 | src += src_z * src_slice_stride; |
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130 | for (z = 0; z < depth; ++z) { |
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131 | util_copy_rect(dst, |
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132 | format, |
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133 | dst_stride, |
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134 | dst_x, dst_y, |
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135 | width, height, |
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136 | src, |
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137 | src_stride, |
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138 | src_x, src_y); |
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139 | |||
140 | dst += dst_slice_stride; |
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141 | src += src_slice_stride; |
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142 | } |
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143 | } |
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144 | |||
145 | |||
146 | void |
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147 | util_fill_rect(ubyte * dst, |
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148 | enum pipe_format format, |
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149 | unsigned dst_stride, |
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150 | unsigned dst_x, |
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151 | unsigned dst_y, |
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152 | unsigned width, |
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153 | unsigned height, |
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154 | union util_color *uc) |
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155 | { |
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156 | const struct util_format_description *desc = util_format_description(format); |
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157 | unsigned i, j; |
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158 | unsigned width_size; |
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159 | int blocksize = desc->block.bits / 8; |
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160 | int blockwidth = desc->block.width; |
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161 | int blockheight = desc->block.height; |
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162 | |||
163 | assert(blocksize > 0); |
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164 | assert(blockwidth > 0); |
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165 | assert(blockheight > 0); |
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166 | |||
167 | dst_x /= blockwidth; |
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168 | dst_y /= blockheight; |
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169 | width = (width + blockwidth - 1)/blockwidth; |
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170 | height = (height + blockheight - 1)/blockheight; |
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171 | |||
172 | dst += dst_x * blocksize; |
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173 | dst += dst_y * dst_stride; |
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174 | width_size = width * blocksize; |
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175 | |||
176 | switch (blocksize) { |
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177 | case 1: |
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178 | if(dst_stride == width_size) |
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179 | memset(dst, uc->ub, height * width_size); |
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180 | else { |
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181 | for (i = 0; i < height; i++) { |
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182 | memset(dst, uc->ub, width_size); |
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183 | dst += dst_stride; |
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184 | } |
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185 | } |
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186 | break; |
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187 | case 2: |
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188 | for (i = 0; i < height; i++) { |
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189 | uint16_t *row = (uint16_t *)dst; |
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190 | for (j = 0; j < width; j++) |
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191 | *row++ = uc->us; |
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192 | dst += dst_stride; |
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193 | } |
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194 | break; |
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195 | case 4: |
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196 | for (i = 0; i < height; i++) { |
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197 | uint32_t *row = (uint32_t *)dst; |
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198 | for (j = 0; j < width; j++) |
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199 | *row++ = uc->ui[0]; |
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200 | dst += dst_stride; |
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201 | } |
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202 | break; |
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203 | default: |
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204 | for (i = 0; i < height; i++) { |
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205 | ubyte *row = dst; |
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206 | for (j = 0; j < width; j++) { |
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207 | memcpy(row, uc, blocksize); |
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208 | row += blocksize; |
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209 | } |
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210 | dst += dst_stride; |
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211 | } |
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212 | break; |
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213 | } |
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214 | } |
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215 | |||
216 | |||
217 | void |
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218 | util_fill_box(ubyte * dst, |
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219 | enum pipe_format format, |
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220 | unsigned stride, |
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221 | unsigned layer_stride, |
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222 | unsigned x, |
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223 | unsigned y, |
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224 | unsigned z, |
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225 | unsigned width, |
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226 | unsigned height, |
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227 | unsigned depth, |
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228 | union util_color *uc) |
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229 | { |
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230 | unsigned layer; |
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231 | dst += z * layer_stride; |
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232 | for (layer = z; layer < depth; layer++) { |
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233 | util_fill_rect(dst, format, |
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234 | stride, |
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235 | x, y, width, height, uc); |
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236 | dst += layer_stride; |
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237 | } |
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238 | } |
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239 | |||
240 | |||
241 | /** |
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242 | * Fallback function for pipe->resource_copy_region(). |
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243 | * Note: (X,Y)=(0,0) is always the upper-left corner. |
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244 | */ |
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245 | void |
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246 | util_resource_copy_region(struct pipe_context *pipe, |
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247 | struct pipe_resource *dst, |
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248 | unsigned dst_level, |
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249 | unsigned dst_x, unsigned dst_y, unsigned dst_z, |
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250 | struct pipe_resource *src, |
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251 | unsigned src_level, |
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252 | const struct pipe_box *src_box) |
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253 | { |
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254 | struct pipe_transfer *src_trans, *dst_trans; |
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255 | uint8_t *dst_map; |
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256 | const uint8_t *src_map; |
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257 | enum pipe_format src_format, dst_format; |
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258 | struct pipe_box dst_box; |
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259 | |||
260 | assert(src && dst); |
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261 | if (!src || !dst) |
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262 | return; |
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263 | |||
264 | assert((src->target == PIPE_BUFFER && dst->target == PIPE_BUFFER) || |
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265 | (src->target != PIPE_BUFFER && dst->target != PIPE_BUFFER)); |
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266 | |||
267 | src_format = src->format; |
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268 | dst_format = dst->format; |
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269 | |||
270 | assert(util_format_get_blocksize(dst_format) == util_format_get_blocksize(src_format)); |
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271 | assert(util_format_get_blockwidth(dst_format) == util_format_get_blockwidth(src_format)); |
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272 | assert(util_format_get_blockheight(dst_format) == util_format_get_blockheight(src_format)); |
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273 | |||
274 | src_map = pipe->transfer_map(pipe, |
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275 | src, |
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276 | src_level, |
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277 | PIPE_TRANSFER_READ, |
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278 | src_box, &src_trans); |
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279 | assert(src_map); |
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280 | if (!src_map) { |
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281 | goto no_src_map; |
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282 | } |
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283 | |||
284 | dst_box.x = dst_x; |
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285 | dst_box.y = dst_y; |
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286 | dst_box.z = dst_z; |
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287 | dst_box.width = src_box->width; |
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288 | dst_box.height = src_box->height; |
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289 | dst_box.depth = src_box->depth; |
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290 | |||
291 | dst_map = pipe->transfer_map(pipe, |
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292 | dst, |
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293 | dst_level, |
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294 | PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD_RANGE, |
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295 | &dst_box, &dst_trans); |
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296 | assert(dst_map); |
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297 | if (!dst_map) { |
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298 | goto no_dst_map; |
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299 | } |
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300 | |||
301 | if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) { |
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302 | assert(src_box->height == 1); |
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303 | assert(src_box->depth == 1); |
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304 | memcpy(dst_map, src_map, src_box->width); |
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305 | } else { |
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306 | util_copy_box(dst_map, |
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307 | dst_format, |
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308 | dst_trans->stride, dst_trans->layer_stride, |
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309 | 0, 0, 0, |
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310 | src_box->width, src_box->height, src_box->depth, |
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311 | src_map, |
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312 | src_trans->stride, src_trans->layer_stride, |
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313 | 0, 0, 0); |
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314 | } |
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315 | |||
316 | pipe->transfer_unmap(pipe, dst_trans); |
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317 | no_dst_map: |
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318 | pipe->transfer_unmap(pipe, src_trans); |
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319 | no_src_map: |
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320 | ; |
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321 | } |
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322 | |||
323 | |||
324 | |||
325 | #define UBYTE_TO_USHORT(B) ((B) | ((B) << 8)) |
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326 | |||
327 | |||
328 | /** |
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329 | * Fallback for pipe->clear_render_target() function. |
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330 | * XXX this looks too hackish to be really useful. |
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331 | * cpp > 4 looks like a gross hack at best... |
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332 | * Plus can't use these transfer fallbacks when clearing |
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333 | * multisampled surfaces for instance. |
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334 | * Clears all bound layers. |
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335 | */ |
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336 | void |
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337 | util_clear_render_target(struct pipe_context *pipe, |
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338 | struct pipe_surface *dst, |
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339 | const union pipe_color_union *color, |
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340 | unsigned dstx, unsigned dsty, |
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341 | unsigned width, unsigned height) |
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342 | { |
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343 | struct pipe_transfer *dst_trans; |
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344 | ubyte *dst_map; |
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345 | union util_color uc; |
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346 | unsigned max_layer; |
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347 | |||
348 | assert(dst->texture); |
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349 | if (!dst->texture) |
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350 | return; |
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351 | |||
352 | if (dst->texture->target == PIPE_BUFFER) { |
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353 | /* |
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354 | * The fill naturally works on the surface format, however |
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355 | * the transfer uses resource format which is just bytes for buffers. |
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356 | */ |
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357 | unsigned dx, w; |
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358 | unsigned pixstride = util_format_get_blocksize(dst->format); |
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359 | dx = (dst->u.buf.first_element + dstx) * pixstride; |
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360 | w = width * pixstride; |
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361 | max_layer = 0; |
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362 | dst_map = pipe_transfer_map(pipe, |
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363 | dst->texture, |
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364 | 0, 0, |
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365 | PIPE_TRANSFER_WRITE, |
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366 | dx, 0, w, 1, |
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367 | &dst_trans); |
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368 | } |
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369 | else { |
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370 | max_layer = dst->u.tex.last_layer - dst->u.tex.first_layer; |
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371 | dst_map = pipe_transfer_map_3d(pipe, |
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372 | dst->texture, |
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373 | dst->u.tex.level, |
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374 | PIPE_TRANSFER_WRITE, |
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375 | dstx, dsty, dst->u.tex.first_layer, |
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376 | width, height, max_layer + 1, &dst_trans); |
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377 | } |
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378 | |||
379 | assert(dst_map); |
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380 | |||
381 | if (dst_map) { |
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382 | enum pipe_format format = dst->format; |
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383 | assert(dst_trans->stride > 0); |
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384 | |||
385 | if (util_format_is_pure_integer(format)) { |
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386 | /* |
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387 | * We expect int/uint clear values here, though some APIs |
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388 | * might disagree (but in any case util_pack_color() |
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389 | * couldn't handle it)... |
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390 | */ |
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391 | if (util_format_is_pure_sint(format)) { |
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392 | util_format_write_4i(format, color->i, 0, &uc, 0, 0, 0, 1, 1); |
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393 | } |
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394 | else { |
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395 | assert(util_format_is_pure_uint(format)); |
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396 | util_format_write_4ui(format, color->ui, 0, &uc, 0, 0, 0, 1, 1); |
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397 | } |
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398 | } |
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399 | else { |
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400 | util_pack_color(color->f, dst->format, &uc); |
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401 | } |
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402 | |||
403 | util_fill_box(dst_map, dst->format, |
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404 | dst_trans->stride, dst_trans->layer_stride, |
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405 | 0, 0, 0, width, height, max_layer + 1, &uc); |
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406 | |||
407 | pipe->transfer_unmap(pipe, dst_trans); |
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408 | } |
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409 | } |
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410 | |||
411 | /** |
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412 | * Fallback for pipe->clear_stencil() function. |
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413 | * sw fallback doesn't look terribly useful here. |
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414 | * Plus can't use these transfer fallbacks when clearing |
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415 | * multisampled surfaces for instance. |
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416 | * Clears all bound layers. |
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417 | */ |
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418 | void |
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419 | util_clear_depth_stencil(struct pipe_context *pipe, |
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420 | struct pipe_surface *dst, |
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421 | unsigned clear_flags, |
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422 | double depth, |
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423 | unsigned stencil, |
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424 | unsigned dstx, unsigned dsty, |
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425 | unsigned width, unsigned height) |
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426 | { |
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427 | enum pipe_format format = dst->format; |
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428 | struct pipe_transfer *dst_trans; |
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429 | ubyte *dst_map; |
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430 | boolean need_rmw = FALSE; |
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431 | unsigned max_layer, layer; |
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432 | |||
433 | if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) && |
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434 | ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) && |
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435 | util_format_is_depth_and_stencil(format)) |
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436 | need_rmw = TRUE; |
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437 | |||
438 | assert(dst->texture); |
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439 | if (!dst->texture) |
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440 | return; |
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441 | |||
442 | max_layer = dst->u.tex.last_layer - dst->u.tex.first_layer; |
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443 | dst_map = pipe_transfer_map_3d(pipe, |
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444 | dst->texture, |
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445 | dst->u.tex.level, |
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446 | (need_rmw ? PIPE_TRANSFER_READ_WRITE : |
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447 | PIPE_TRANSFER_WRITE), |
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448 | dstx, dsty, dst->u.tex.first_layer, |
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449 | width, height, max_layer + 1, &dst_trans); |
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450 | assert(dst_map); |
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451 | |||
452 | if (dst_map) { |
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453 | unsigned dst_stride = dst_trans->stride; |
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454 | uint64_t zstencil = util_pack64_z_stencil(format, depth, stencil); |
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455 | ubyte *dst_layer = dst_map; |
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456 | unsigned i, j; |
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457 | assert(dst_trans->stride > 0); |
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458 | |||
459 | for (layer = 0; layer <= max_layer; layer++) { |
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460 | dst_map = dst_layer; |
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461 | |||
462 | switch (util_format_get_blocksize(format)) { |
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463 | case 1: |
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464 | assert(format == PIPE_FORMAT_S8_UINT); |
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465 | if(dst_stride == width) |
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466 | memset(dst_map, (uint8_t) zstencil, height * width); |
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467 | else { |
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468 | for (i = 0; i < height; i++) { |
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469 | memset(dst_map, (uint8_t) zstencil, width); |
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470 | dst_map += dst_stride; |
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471 | } |
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472 | } |
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473 | break; |
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474 | case 2: |
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475 | assert(format == PIPE_FORMAT_Z16_UNORM); |
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476 | for (i = 0; i < height; i++) { |
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477 | uint16_t *row = (uint16_t *)dst_map; |
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478 | for (j = 0; j < width; j++) |
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479 | *row++ = (uint16_t) zstencil; |
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480 | dst_map += dst_stride; |
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481 | } |
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482 | break; |
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483 | case 4: |
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484 | if (!need_rmw) { |
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485 | for (i = 0; i < height; i++) { |
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486 | uint32_t *row = (uint32_t *)dst_map; |
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487 | for (j = 0; j < width; j++) |
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488 | *row++ = (uint32_t) zstencil; |
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489 | dst_map += dst_stride; |
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490 | } |
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491 | } |
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492 | else { |
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493 | uint32_t dst_mask; |
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494 | if (format == PIPE_FORMAT_Z24_UNORM_S8_UINT) |
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495 | dst_mask = 0x00ffffff; |
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496 | else { |
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497 | assert(format == PIPE_FORMAT_S8_UINT_Z24_UNORM); |
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498 | dst_mask = 0xffffff00; |
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499 | } |
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500 | if (clear_flags & PIPE_CLEAR_DEPTH) |
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501 | dst_mask = ~dst_mask; |
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502 | for (i = 0; i < height; i++) { |
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503 | uint32_t *row = (uint32_t *)dst_map; |
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504 | for (j = 0; j < width; j++) { |
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505 | uint32_t tmp = *row & dst_mask; |
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506 | *row++ = tmp | ((uint32_t) zstencil & ~dst_mask); |
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507 | } |
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508 | dst_map += dst_stride; |
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509 | } |
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510 | } |
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511 | break; |
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512 | case 8: |
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513 | if (!need_rmw) { |
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514 | for (i = 0; i < height; i++) { |
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515 | uint64_t *row = (uint64_t *)dst_map; |
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516 | for (j = 0; j < width; j++) |
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517 | *row++ = zstencil; |
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518 | dst_map += dst_stride; |
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519 | } |
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520 | } |
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521 | else { |
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522 | uint64_t src_mask; |
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523 | |||
524 | if (clear_flags & PIPE_CLEAR_DEPTH) |
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525 | src_mask = 0x00000000ffffffffull; |
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526 | else |
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527 | src_mask = 0x000000ff00000000ull; |
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528 | |||
529 | for (i = 0; i < height; i++) { |
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530 | uint64_t *row = (uint64_t *)dst_map; |
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531 | for (j = 0; j < width; j++) { |
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532 | uint64_t tmp = *row & ~src_mask; |
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533 | *row++ = tmp | (zstencil & src_mask); |
||
534 | } |
||
535 | dst_map += dst_stride; |
||
536 | } |
||
537 | } |
||
538 | break; |
||
539 | default: |
||
540 | assert(0); |
||
541 | break; |
||
542 | } |
||
543 | dst_layer += dst_trans->layer_stride; |
||
544 | } |
||
545 | |||
546 | pipe->transfer_unmap(pipe, dst_trans); |
||
547 | } |
||
548 | } |
||
549 | |||
550 | |||
551 | /* Return if the box is totally inside the resource. |
||
552 | */ |
||
553 | static boolean |
||
554 | is_box_inside_resource(const struct pipe_resource *res, |
||
555 | const struct pipe_box *box, |
||
556 | unsigned level) |
||
557 | { |
||
558 | unsigned width = 1, height = 1, depth = 1; |
||
559 | |||
560 | switch (res->target) { |
||
561 | case PIPE_BUFFER: |
||
562 | width = res->width0; |
||
563 | height = 1; |
||
564 | depth = 1; |
||
565 | break; |
||
566 | case PIPE_TEXTURE_1D: |
||
567 | width = u_minify(res->width0, level); |
||
568 | height = 1; |
||
569 | depth = 1; |
||
570 | break; |
||
571 | case PIPE_TEXTURE_2D: |
||
572 | case PIPE_TEXTURE_RECT: |
||
573 | width = u_minify(res->width0, level); |
||
574 | height = u_minify(res->height0, level); |
||
575 | depth = 1; |
||
576 | break; |
||
577 | case PIPE_TEXTURE_3D: |
||
578 | width = u_minify(res->width0, level); |
||
579 | height = u_minify(res->height0, level); |
||
580 | depth = u_minify(res->depth0, level); |
||
581 | break; |
||
582 | case PIPE_TEXTURE_CUBE: |
||
583 | width = u_minify(res->width0, level); |
||
584 | height = u_minify(res->height0, level); |
||
585 | depth = 6; |
||
586 | break; |
||
587 | case PIPE_TEXTURE_1D_ARRAY: |
||
588 | width = u_minify(res->width0, level); |
||
589 | height = 1; |
||
590 | depth = res->array_size; |
||
591 | break; |
||
592 | case PIPE_TEXTURE_2D_ARRAY: |
||
593 | width = u_minify(res->width0, level); |
||
594 | height = u_minify(res->height0, level); |
||
595 | depth = res->array_size; |
||
596 | break; |
||
597 | case PIPE_TEXTURE_CUBE_ARRAY: |
||
598 | width = u_minify(res->width0, level); |
||
599 | height = u_minify(res->height0, level); |
||
600 | depth = res->array_size; |
||
601 | assert(res->array_size % 6 == 0); |
||
602 | break; |
||
603 | case PIPE_MAX_TEXTURE_TYPES:; |
||
604 | } |
||
605 | |||
606 | return box->x >= 0 && |
||
607 | box->x + box->width <= (int) width && |
||
608 | box->y >= 0 && |
||
609 | box->y + box->height <= (int) height && |
||
610 | box->z >= 0 && |
||
611 | box->z + box->depth <= (int) depth; |
||
612 | } |
||
613 | |||
614 | static unsigned |
||
615 | get_sample_count(const struct pipe_resource *res) |
||
616 | { |
||
617 | return res->nr_samples ? res->nr_samples : 1; |
||
618 | } |
||
619 | |||
620 | /** |
||
621 | * Try to do a blit using resource_copy_region. The function calls |
||
622 | * resource_copy_region if the blit description is compatible with it. |
||
623 | * |
||
624 | * It returns TRUE if the blit was done using resource_copy_region. |
||
625 | * |
||
626 | * It returns FALSE otherwise and the caller must fall back to a more generic |
||
627 | * codepath for the blit operation. (e.g. by using u_blitter) |
||
628 | */ |
||
629 | boolean |
||
630 | util_try_blit_via_copy_region(struct pipe_context *ctx, |
||
631 | const struct pipe_blit_info *blit) |
||
632 | { |
||
633 | unsigned mask = util_format_get_mask(blit->dst.format); |
||
634 | |||
635 | /* No format conversions. */ |
||
636 | if (blit->src.resource->format != blit->src.format || |
||
637 | blit->dst.resource->format != blit->dst.format || |
||
638 | !util_is_format_compatible( |
||
639 | util_format_description(blit->src.resource->format), |
||
640 | util_format_description(blit->dst.resource->format))) { |
||
641 | return FALSE; |
||
642 | } |
||
643 | |||
644 | /* No masks, no filtering, no scissor. */ |
||
645 | if ((blit->mask & mask) != mask || |
||
646 | blit->filter != PIPE_TEX_FILTER_NEAREST || |
||
647 | blit->scissor_enable) { |
||
648 | return FALSE; |
||
649 | } |
||
650 | |||
651 | /* No flipping. */ |
||
652 | if (blit->src.box.width < 0 || |
||
653 | blit->src.box.height < 0 || |
||
654 | blit->src.box.depth < 0) { |
||
655 | return FALSE; |
||
656 | } |
||
657 | |||
658 | /* No scaling. */ |
||
659 | if (blit->src.box.width != blit->dst.box.width || |
||
660 | blit->src.box.height != blit->dst.box.height || |
||
661 | blit->src.box.depth != blit->dst.box.depth) { |
||
662 | return FALSE; |
||
663 | } |
||
664 | |||
665 | /* No out-of-bounds access. */ |
||
666 | if (!is_box_inside_resource(blit->src.resource, &blit->src.box, |
||
667 | blit->src.level) || |
||
668 | !is_box_inside_resource(blit->dst.resource, &blit->dst.box, |
||
669 | blit->dst.level)) { |
||
670 | return FALSE; |
||
671 | } |
||
672 | |||
673 | /* Sample counts must match. */ |
||
674 | if (get_sample_count(blit->src.resource) != |
||
675 | get_sample_count(blit->dst.resource)) { |
||
676 | return FALSE; |
||
677 | } |
||
678 | |||
679 | ctx->resource_copy_region(ctx, blit->dst.resource, blit->dst.level, |
||
680 | blit->dst.box.x, blit->dst.box.y, blit->dst.box.z, |
||
681 | blit->src.resource, blit->src.level, |
||
682 | &blit->src.box); |
||
683 | return TRUE; |
||
684 | }>>>=>=>=>>>>>>>>>>>>=>><>>>>>>>>>>>> |