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1901 | serge | 1 | /************************************************************************** |
2 | * |
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3 | * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
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4 | * All Rights Reserved. |
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5 | * |
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6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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7 | * copy of this software and associated documentation files (the |
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8 | * "Software"), to deal in the Software without restriction, including |
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9 | * without limitation the rights to use, copy, modify, merge, publish, |
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10 | * distribute, sub license, and/or sell copies of the Software, and to |
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11 | * permit persons to whom the Software is furnished to do so, subject to |
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12 | * the following conditions: |
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13 | * |
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14 | * The above copyright notice and this permission notice (including the |
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15 | * next paragraph) shall be included in all copies or substantial portions |
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16 | * of the Software. |
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17 | * |
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18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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21 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
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22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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25 | * |
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26 | **************************************************************************/ |
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27 | |||
28 | #include |
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29 | |||
30 | #include "st_context.h" |
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31 | #include "st_format.h" |
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32 | #include "st_texture.h" |
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33 | #include "st_cb_fbo.h" |
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34 | #include "main/enums.h" |
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35 | |||
36 | #include "pipe/p_state.h" |
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37 | #include "pipe/p_context.h" |
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38 | #include "pipe/p_defines.h" |
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39 | #include "util/u_inlines.h" |
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40 | #include "util/u_format.h" |
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41 | #include "util/u_rect.h" |
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42 | #include "util/u_math.h" |
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43 | |||
44 | |||
45 | #define DBG if(0) printf |
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46 | |||
47 | |||
48 | /** |
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49 | * Allocate a new pipe_resource object |
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50 | * width0, height0, depth0 are the dimensions of the level 0 image |
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51 | * (the highest resolution). last_level indicates how many mipmap levels |
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52 | * to allocate storage for. For non-mipmapped textures, this will be zero. |
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53 | */ |
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54 | struct pipe_resource * |
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55 | st_texture_create(struct st_context *st, |
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56 | enum pipe_texture_target target, |
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57 | enum pipe_format format, |
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58 | GLuint last_level, |
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59 | GLuint width0, |
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60 | GLuint height0, |
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61 | GLuint depth0, |
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62 | GLuint bind ) |
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63 | { |
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64 | struct pipe_resource pt, *newtex; |
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65 | struct pipe_screen *screen = st->pipe->screen; |
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66 | |||
67 | assert(target < PIPE_MAX_TEXTURE_TYPES); |
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68 | assert(width0 > 0); |
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69 | assert(height0 > 0); |
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70 | assert(depth0 > 0); |
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71 | |||
72 | DBG("%s target %s format %s last_level %d\n", __FUNCTION__, |
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73 | _mesa_lookup_enum_by_nr(target), |
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74 | _mesa_lookup_enum_by_nr(format), last_level); |
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75 | |||
76 | assert(format); |
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77 | assert(screen->is_format_supported(screen, format, target, 0, |
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78 | PIPE_BIND_SAMPLER_VIEW, 0)); |
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79 | |||
80 | memset(&pt, 0, sizeof(pt)); |
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81 | pt.target = target; |
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82 | pt.format = format; |
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83 | pt.last_level = last_level; |
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84 | pt.width0 = width0; |
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85 | pt.height0 = height0; |
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86 | pt.depth0 = depth0; |
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87 | pt.array_size = (target == PIPE_TEXTURE_CUBE ? 6 : 1); |
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88 | pt.usage = PIPE_USAGE_DEFAULT; |
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89 | pt.bind = bind; |
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90 | pt.flags = 0; |
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91 | |||
92 | newtex = screen->resource_create(screen, &pt); |
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93 | |||
94 | assert(!newtex || pipe_is_referenced(&newtex->reference)); |
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95 | |||
96 | return newtex; |
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97 | } |
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98 | |||
99 | |||
100 | /** |
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101 | * Check if a texture image can be pulled into a unified mipmap texture. |
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102 | */ |
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103 | GLboolean |
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104 | st_texture_match_image(const struct pipe_resource *pt, |
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105 | const struct gl_texture_image *image, |
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106 | GLuint face, GLuint level) |
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107 | { |
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108 | /* Images with borders are never pulled into mipmap textures. |
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109 | */ |
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110 | if (image->Border) |
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111 | return GL_FALSE; |
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112 | |||
113 | /* Check if this image's format matches the established texture's format. |
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114 | */ |
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115 | if (st_mesa_format_to_pipe_format(image->TexFormat) != pt->format) |
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116 | return GL_FALSE; |
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117 | |||
118 | /* Test if this image's size matches what's expected in the |
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119 | * established texture. |
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120 | */ |
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121 | if (image->Width != u_minify(pt->width0, level) || |
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122 | image->Height != u_minify(pt->height0, level) || |
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123 | image->Depth != u_minify(pt->depth0, level)) |
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124 | return GL_FALSE; |
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125 | |||
126 | return GL_TRUE; |
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127 | } |
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128 | |||
129 | |||
130 | /** |
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131 | * Map a texture image and return the address for a particular 2D face/slice/ |
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132 | * layer. The stImage indicates the cube face and mipmap level. The slice |
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133 | * of the 3D texture is passed in 'zoffset'. |
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134 | * \param usage one of the PIPE_TRANSFER_x values |
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135 | * \param x, y, w, h the region of interest of the 2D image. |
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136 | * \return address of mapping or NULL if any error |
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137 | */ |
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138 | GLubyte * |
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139 | st_texture_image_map(struct st_context *st, struct st_texture_image *stImage, |
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140 | GLuint zoffset, enum pipe_transfer_usage usage, |
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141 | GLuint x, GLuint y, GLuint w, GLuint h) |
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142 | { |
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143 | struct pipe_context *pipe = st->pipe; |
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144 | struct pipe_resource *pt = stImage->pt; |
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145 | |||
146 | DBG("%s \n", __FUNCTION__); |
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147 | |||
148 | stImage->transfer = pipe_get_transfer(st->pipe, pt, stImage->level, |
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149 | stImage->face + zoffset, |
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150 | usage, x, y, w, h); |
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151 | |||
152 | if (stImage->transfer) |
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153 | return pipe_transfer_map(pipe, stImage->transfer); |
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154 | else |
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155 | return NULL; |
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156 | } |
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157 | |||
158 | |||
159 | void |
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160 | st_texture_image_unmap(struct st_context *st, |
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161 | struct st_texture_image *stImage) |
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162 | { |
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163 | struct pipe_context *pipe = st->pipe; |
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164 | |||
165 | DBG("%s\n", __FUNCTION__); |
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166 | |||
167 | pipe_transfer_unmap(pipe, stImage->transfer); |
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168 | |||
169 | pipe->transfer_destroy(pipe, stImage->transfer); |
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170 | } |
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171 | |||
172 | |||
173 | |||
174 | /** |
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175 | * Upload data to a rectangular sub-region. Lots of choices how to do this: |
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176 | * |
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177 | * - memcpy by span to current destination |
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178 | * - upload data as new buffer and blit |
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179 | * |
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180 | * Currently always memcpy. |
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181 | */ |
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182 | static void |
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183 | st_surface_data(struct pipe_context *pipe, |
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184 | struct pipe_transfer *dst, |
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185 | unsigned dstx, unsigned dsty, |
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186 | const void *src, unsigned src_stride, |
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187 | unsigned srcx, unsigned srcy, unsigned width, unsigned height) |
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188 | { |
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189 | void *map = pipe_transfer_map(pipe, dst); |
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190 | |||
191 | assert(dst->resource); |
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192 | util_copy_rect(map, |
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193 | dst->resource->format, |
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194 | dst->stride, |
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195 | dstx, dsty, |
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196 | width, height, |
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197 | src, src_stride, |
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198 | srcx, srcy); |
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199 | |||
200 | pipe_transfer_unmap(pipe, dst); |
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201 | } |
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202 | |||
203 | |||
204 | /* Upload data for a particular image. |
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205 | */ |
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206 | void |
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207 | st_texture_image_data(struct st_context *st, |
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208 | struct pipe_resource *dst, |
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209 | GLuint face, |
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210 | GLuint level, |
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211 | void *src, |
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212 | GLuint src_row_stride, GLuint src_image_stride) |
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213 | { |
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214 | struct pipe_context *pipe = st->pipe; |
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215 | GLuint depth = u_minify(dst->depth0, level); |
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216 | GLuint i; |
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217 | const GLubyte *srcUB = src; |
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218 | struct pipe_transfer *dst_transfer; |
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219 | |||
220 | DBG("%s\n", __FUNCTION__); |
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221 | |||
222 | for (i = 0; i < depth; i++) { |
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223 | dst_transfer = pipe_get_transfer(st->pipe, dst, level, face + i, |
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224 | PIPE_TRANSFER_WRITE, 0, 0, |
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225 | u_minify(dst->width0, level), |
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226 | u_minify(dst->height0, level)); |
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227 | |||
228 | st_surface_data(pipe, dst_transfer, |
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229 | 0, 0, /* dstx, dsty */ |
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230 | srcUB, |
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231 | src_row_stride, |
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232 | 0, 0, /* source x, y */ |
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233 | u_minify(dst->width0, level), |
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234 | u_minify(dst->height0, level)); /* width, height */ |
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235 | |||
236 | pipe->transfer_destroy(pipe, dst_transfer); |
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237 | |||
238 | srcUB += src_image_stride; |
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239 | } |
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240 | } |
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241 | |||
242 | |||
243 | /** |
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244 | * For debug only: get/print center pixel in the src resource. |
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245 | */ |
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246 | static void |
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247 | print_center_pixel(struct pipe_context *pipe, struct pipe_resource *src) |
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248 | { |
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249 | struct pipe_transfer *xfer; |
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250 | struct pipe_box region; |
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251 | ubyte *map; |
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252 | |||
253 | region.x = src->width0 / 2; |
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254 | region.y = src->height0 / 2; |
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255 | region.z = 0; |
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256 | region.width = 1; |
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257 | region.height = 1; |
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258 | region.depth = 1; |
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259 | |||
260 | xfer = pipe->get_transfer(pipe, src, 0, PIPE_TRANSFER_READ, ®ion); |
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261 | map = pipe->transfer_map(pipe, xfer); |
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262 | |||
263 | printf("center pixel: %d %d %d %d\n", map[0], map[1], map[2], map[3]); |
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264 | |||
265 | pipe->transfer_unmap(pipe, xfer); |
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266 | pipe->transfer_destroy(pipe, xfer); |
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267 | } |
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268 | |||
269 | |||
270 | /** |
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271 | * Copy the image at level=0 in 'src' to the 'dst' resource at 'dstLevel'. |
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272 | * This is used to copy mipmap images from one texture buffer to another. |
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273 | * This typically happens when our initial guess at the total texture size |
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274 | * is incorrect (see the guess_and_alloc_texture() function). |
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275 | */ |
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276 | void |
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277 | st_texture_image_copy(struct pipe_context *pipe, |
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278 | struct pipe_resource *dst, GLuint dstLevel, |
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279 | struct pipe_resource *src, GLuint srcLevel, |
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280 | GLuint face) |
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281 | { |
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282 | GLuint width = u_minify(dst->width0, dstLevel); |
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283 | GLuint height = u_minify(dst->height0, dstLevel); |
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284 | GLuint depth = u_minify(dst->depth0, dstLevel); |
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285 | struct pipe_box src_box; |
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286 | GLuint i; |
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287 | |||
288 | assert(u_minify(src->width0, srcLevel) == width); |
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289 | assert(u_minify(src->height0, srcLevel) == height); |
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290 | assert(u_minify(src->depth0, srcLevel) == depth); |
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291 | |||
292 | src_box.x = 0; |
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293 | src_box.y = 0; |
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294 | src_box.width = width; |
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295 | src_box.height = height; |
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296 | src_box.depth = 1; |
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297 | /* Loop over 3D image slices */ |
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298 | /* could (and probably should) use "true" 3d box here - |
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299 | but drivers can't quite handle it yet */ |
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300 | for (i = face; i < face + depth; i++) { |
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301 | src_box.z = i; |
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302 | |||
303 | if (0) { |
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304 | print_center_pixel(pipe, src); |
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305 | } |
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306 | |||
307 | pipe->resource_copy_region(pipe, |
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308 | dst, |
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309 | dstLevel, |
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310 | 0, 0, i,/* destX, Y, Z */ |
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311 | src, |
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312 | srcLevel, |
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313 | &src_box); |
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314 | } |
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315 | }>>> |
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316 |