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5564 | serge | 1 | /* |
2 | * Mesa 3-D graphics library |
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3 | * |
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4 | * Copyright (C) 2010 LunarG Inc. |
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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 "Software"), |
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8 | * to deal in the Software without restriction, including without limitation |
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9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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10 | * and/or sell copies of the Software, and to permit persons to whom the |
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11 | * Software is furnished to do so, subject to the following conditions: |
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12 | * |
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13 | * The above copyright notice and this permission notice shall be included |
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14 | * in all copies or substantial portions of the Software. |
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15 | * |
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16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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22 | * DEALINGS IN THE SOFTWARE. |
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23 | * |
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24 | * Authors: |
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25 | * Chia-I Wu |
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26 | */ |
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27 | |||
28 | #include "main/mtypes.h" |
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29 | #include "main/extensions.h" |
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30 | #include "main/context.h" |
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31 | #include "main/texobj.h" |
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32 | #include "main/teximage.h" |
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33 | #include "main/texstate.h" |
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34 | #include "main/errors.h" |
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35 | #include "main/framebuffer.h" |
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36 | #include "main/fbobject.h" |
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37 | #include "main/renderbuffer.h" |
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38 | #include "main/version.h" |
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39 | #include "st_texture.h" |
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40 | |||
41 | #include "st_context.h" |
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42 | #include "st_extensions.h" |
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43 | #include "st_format.h" |
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44 | #include "st_cb_fbo.h" |
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45 | #include "st_cb_flush.h" |
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46 | #include "st_manager.h" |
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47 | |||
48 | #include "state_tracker/st_gl_api.h" |
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49 | |||
50 | #include "pipe/p_context.h" |
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51 | #include "pipe/p_screen.h" |
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52 | #include "util/u_format.h" |
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53 | #include "util/u_pointer.h" |
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54 | #include "util/u_inlines.h" |
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55 | #include "util/u_atomic.h" |
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56 | #include "util/u_surface.h" |
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57 | |||
58 | /** |
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59 | * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer. |
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60 | * Return NULL if the struct gl_framebuffer is a user-created framebuffer. |
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61 | * We'll only return non-null for window system framebuffers. |
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62 | * Note that this function may fail. |
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63 | */ |
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64 | static inline struct st_framebuffer * |
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65 | st_ws_framebuffer(struct gl_framebuffer *fb) |
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66 | { |
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67 | /* FBO cannot be casted. See st_new_framebuffer */ |
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68 | if (fb && _mesa_is_winsys_fbo(fb)) |
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69 | return (struct st_framebuffer *) fb; |
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70 | return NULL; |
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71 | } |
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72 | |||
73 | /** |
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74 | * Map an attachment to a buffer index. |
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75 | */ |
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76 | static inline gl_buffer_index |
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77 | attachment_to_buffer_index(enum st_attachment_type statt) |
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78 | { |
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79 | gl_buffer_index index; |
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80 | |||
81 | switch (statt) { |
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82 | case ST_ATTACHMENT_FRONT_LEFT: |
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83 | index = BUFFER_FRONT_LEFT; |
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84 | break; |
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85 | case ST_ATTACHMENT_BACK_LEFT: |
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86 | index = BUFFER_BACK_LEFT; |
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87 | break; |
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88 | case ST_ATTACHMENT_FRONT_RIGHT: |
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89 | index = BUFFER_FRONT_RIGHT; |
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90 | break; |
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91 | case ST_ATTACHMENT_BACK_RIGHT: |
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92 | index = BUFFER_BACK_RIGHT; |
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93 | break; |
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94 | case ST_ATTACHMENT_DEPTH_STENCIL: |
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95 | index = BUFFER_DEPTH; |
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96 | break; |
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97 | case ST_ATTACHMENT_ACCUM: |
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98 | index = BUFFER_ACCUM; |
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99 | break; |
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100 | case ST_ATTACHMENT_SAMPLE: |
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101 | default: |
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102 | index = BUFFER_COUNT; |
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103 | break; |
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104 | } |
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105 | |||
106 | return index; |
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107 | } |
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108 | |||
109 | /** |
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110 | * Map a buffer index to an attachment. |
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111 | */ |
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112 | static inline enum st_attachment_type |
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113 | buffer_index_to_attachment(gl_buffer_index index) |
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114 | { |
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115 | enum st_attachment_type statt; |
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116 | |||
117 | switch (index) { |
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118 | case BUFFER_FRONT_LEFT: |
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119 | statt = ST_ATTACHMENT_FRONT_LEFT; |
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120 | break; |
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121 | case BUFFER_BACK_LEFT: |
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122 | statt = ST_ATTACHMENT_BACK_LEFT; |
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123 | break; |
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124 | case BUFFER_FRONT_RIGHT: |
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125 | statt = ST_ATTACHMENT_FRONT_RIGHT; |
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126 | break; |
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127 | case BUFFER_BACK_RIGHT: |
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128 | statt = ST_ATTACHMENT_BACK_RIGHT; |
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129 | break; |
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130 | case BUFFER_DEPTH: |
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131 | statt = ST_ATTACHMENT_DEPTH_STENCIL; |
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132 | break; |
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133 | case BUFFER_ACCUM: |
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134 | statt = ST_ATTACHMENT_ACCUM; |
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135 | break; |
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136 | default: |
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137 | statt = ST_ATTACHMENT_INVALID; |
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138 | break; |
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139 | } |
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140 | |||
141 | return statt; |
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142 | } |
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143 | |||
144 | /** |
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145 | * Make sure a context picks up the latest cached state of the |
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146 | * drawables it binds to. |
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147 | */ |
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148 | static void |
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149 | st_context_validate(struct st_context *st, |
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150 | struct st_framebuffer *stdraw, |
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151 | struct st_framebuffer *stread) |
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152 | { |
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153 | if (stdraw && stdraw->stamp != st->draw_stamp) { |
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154 | st->dirty.st |= ST_NEW_FRAMEBUFFER; |
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155 | _mesa_resize_framebuffer(st->ctx, &stdraw->Base, |
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156 | stdraw->Base.Width, |
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157 | stdraw->Base.Height); |
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158 | st->draw_stamp = stdraw->stamp; |
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159 | } |
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160 | |||
161 | if (stread && stread->stamp != st->read_stamp) { |
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162 | if (stread != stdraw) { |
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163 | st->dirty.st |= ST_NEW_FRAMEBUFFER; |
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164 | _mesa_resize_framebuffer(st->ctx, &stread->Base, |
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165 | stread->Base.Width, |
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166 | stread->Base.Height); |
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167 | } |
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168 | st->read_stamp = stread->stamp; |
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169 | } |
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170 | } |
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171 | |||
172 | /** |
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173 | * Validate a framebuffer to make sure up-to-date pipe_textures are used. |
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174 | * The context is only used for creating pipe surfaces and for calling |
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175 | * _mesa_resize_framebuffer(). |
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176 | * (That should probably be rethought, since those surfaces become |
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177 | * drawable state, not context state, and can be freed by another pipe |
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178 | * context). |
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179 | */ |
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180 | static void |
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181 | st_framebuffer_validate(struct st_framebuffer *stfb, |
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182 | struct st_context *st) |
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183 | { |
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184 | struct pipe_resource *textures[ST_ATTACHMENT_COUNT]; |
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185 | uint width, height; |
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186 | unsigned i; |
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187 | boolean changed = FALSE; |
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188 | int32_t new_stamp; |
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189 | |||
190 | /* Check for incomplete framebuffers (e.g. EGL_KHR_surfaceless_context) */ |
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191 | if (!stfb->iface) |
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192 | return; |
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193 | |||
194 | new_stamp = p_atomic_read(&stfb->iface->stamp); |
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195 | if (stfb->iface_stamp == new_stamp) |
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196 | return; |
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197 | |||
198 | /* validate the fb */ |
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199 | do { |
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200 | if (!stfb->iface->validate(&st->iface, stfb->iface, stfb->statts, |
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201 | stfb->num_statts, textures)) |
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202 | return; |
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203 | |||
204 | stfb->iface_stamp = new_stamp; |
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205 | new_stamp = p_atomic_read(&stfb->iface->stamp); |
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206 | } while(stfb->iface_stamp != new_stamp); |
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207 | |||
208 | width = stfb->Base.Width; |
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209 | height = stfb->Base.Height; |
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210 | |||
211 | for (i = 0; i < stfb->num_statts; i++) { |
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212 | struct st_renderbuffer *strb; |
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213 | struct pipe_surface *ps, surf_tmpl; |
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214 | gl_buffer_index idx; |
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215 | |||
216 | if (!textures[i]) |
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217 | continue; |
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218 | |||
219 | idx = attachment_to_buffer_index(stfb->statts[i]); |
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220 | if (idx >= BUFFER_COUNT) { |
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221 | pipe_resource_reference(&textures[i], NULL); |
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222 | continue; |
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223 | } |
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224 | |||
225 | strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); |
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226 | assert(strb); |
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227 | if (strb->texture == textures[i]) { |
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228 | pipe_resource_reference(&textures[i], NULL); |
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229 | continue; |
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230 | } |
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231 | |||
232 | u_surface_default_template(&surf_tmpl, textures[i]); |
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233 | ps = st->pipe->create_surface(st->pipe, textures[i], &surf_tmpl); |
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234 | if (ps) { |
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235 | pipe_surface_reference(&strb->surface, ps); |
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236 | pipe_resource_reference(&strb->texture, ps->texture); |
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237 | /* ownership transfered */ |
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238 | pipe_surface_reference(&ps, NULL); |
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239 | |||
240 | changed = TRUE; |
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241 | |||
242 | strb->Base.Width = strb->surface->width; |
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243 | strb->Base.Height = strb->surface->height; |
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244 | |||
245 | width = strb->Base.Width; |
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246 | height = strb->Base.Height; |
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247 | } |
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248 | |||
249 | pipe_resource_reference(&textures[i], NULL); |
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250 | } |
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251 | |||
252 | if (changed) { |
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253 | ++stfb->stamp; |
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254 | _mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height); |
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255 | } |
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256 | } |
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257 | |||
258 | /** |
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259 | * Update the attachments to validate by looping the existing renderbuffers. |
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260 | */ |
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261 | static void |
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262 | st_framebuffer_update_attachments(struct st_framebuffer *stfb) |
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263 | { |
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264 | gl_buffer_index idx; |
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265 | |||
266 | stfb->num_statts = 0; |
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267 | for (idx = 0; idx < BUFFER_COUNT; idx++) { |
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268 | struct st_renderbuffer *strb; |
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269 | enum st_attachment_type statt; |
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270 | |||
271 | strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); |
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272 | if (!strb || strb->software) |
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273 | continue; |
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274 | |||
275 | statt = buffer_index_to_attachment(idx); |
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276 | if (statt != ST_ATTACHMENT_INVALID && |
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277 | st_visual_have_buffers(stfb->iface->visual, 1 << statt)) |
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278 | stfb->statts[stfb->num_statts++] = statt; |
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279 | } |
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280 | stfb->stamp++; |
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281 | } |
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282 | |||
283 | /** |
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284 | * Add a renderbuffer to the framebuffer. |
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285 | */ |
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286 | static boolean |
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287 | st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb, |
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288 | gl_buffer_index idx) |
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289 | { |
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290 | struct gl_renderbuffer *rb; |
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291 | enum pipe_format format; |
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292 | boolean sw; |
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293 | |||
294 | if (!stfb->iface) |
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295 | return FALSE; |
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296 | |||
297 | /* do not distinguish depth/stencil buffers */ |
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298 | if (idx == BUFFER_STENCIL) |
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299 | idx = BUFFER_DEPTH; |
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300 | |||
301 | switch (idx) { |
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302 | case BUFFER_DEPTH: |
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303 | format = stfb->iface->visual->depth_stencil_format; |
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304 | sw = FALSE; |
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305 | break; |
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306 | case BUFFER_ACCUM: |
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307 | format = stfb->iface->visual->accum_format; |
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308 | sw = TRUE; |
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309 | break; |
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310 | default: |
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311 | format = stfb->iface->visual->color_format; |
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312 | if (stfb->Base.Visual.sRGBCapable) |
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313 | format = util_format_srgb(format); |
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314 | sw = FALSE; |
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315 | break; |
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316 | } |
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317 | |||
318 | if (format == PIPE_FORMAT_NONE) |
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319 | return FALSE; |
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320 | |||
321 | rb = st_new_renderbuffer_fb(format, stfb->iface->visual->samples, sw); |
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322 | if (!rb) |
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323 | return FALSE; |
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324 | |||
325 | if (idx != BUFFER_DEPTH) { |
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326 | _mesa_add_renderbuffer(&stfb->Base, idx, rb); |
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327 | } |
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328 | else { |
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329 | if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)) |
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330 | _mesa_add_renderbuffer(&stfb->Base, BUFFER_DEPTH, rb); |
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331 | if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) |
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332 | _mesa_add_renderbuffer(&stfb->Base, BUFFER_STENCIL, rb); |
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333 | } |
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334 | |||
335 | return TRUE; |
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336 | } |
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337 | |||
338 | /** |
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339 | * Intialize a struct gl_config from a visual. |
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340 | */ |
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341 | static void |
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342 | st_visual_to_context_mode(const struct st_visual *visual, |
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343 | struct gl_config *mode) |
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344 | { |
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345 | memset(mode, 0, sizeof(*mode)); |
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346 | |||
347 | if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK)) |
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348 | mode->doubleBufferMode = GL_TRUE; |
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349 | if (st_visual_have_buffers(visual, |
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350 | ST_ATTACHMENT_FRONT_RIGHT_MASK | ST_ATTACHMENT_BACK_RIGHT_MASK)) |
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351 | mode->stereoMode = GL_TRUE; |
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352 | |||
353 | if (visual->color_format != PIPE_FORMAT_NONE) { |
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354 | mode->rgbMode = GL_TRUE; |
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355 | |||
356 | mode->redBits = |
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357 | util_format_get_component_bits(visual->color_format, |
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358 | UTIL_FORMAT_COLORSPACE_RGB, 0); |
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359 | mode->greenBits = |
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360 | util_format_get_component_bits(visual->color_format, |
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361 | UTIL_FORMAT_COLORSPACE_RGB, 1); |
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362 | mode->blueBits = |
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363 | util_format_get_component_bits(visual->color_format, |
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364 | UTIL_FORMAT_COLORSPACE_RGB, 2); |
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365 | mode->alphaBits = |
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366 | util_format_get_component_bits(visual->color_format, |
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367 | UTIL_FORMAT_COLORSPACE_RGB, 3); |
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368 | |||
369 | mode->rgbBits = mode->redBits + |
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370 | mode->greenBits + mode->blueBits + mode->alphaBits; |
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371 | } |
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372 | |||
373 | if (visual->depth_stencil_format != PIPE_FORMAT_NONE) { |
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374 | mode->depthBits = |
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375 | util_format_get_component_bits(visual->depth_stencil_format, |
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376 | UTIL_FORMAT_COLORSPACE_ZS, 0); |
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377 | mode->stencilBits = |
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378 | util_format_get_component_bits(visual->depth_stencil_format, |
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379 | UTIL_FORMAT_COLORSPACE_ZS, 1); |
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380 | |||
381 | mode->haveDepthBuffer = mode->depthBits > 0; |
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382 | mode->haveStencilBuffer = mode->stencilBits > 0; |
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383 | } |
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384 | |||
385 | if (visual->accum_format != PIPE_FORMAT_NONE) { |
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386 | mode->haveAccumBuffer = GL_TRUE; |
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387 | |||
388 | mode->accumRedBits = |
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389 | util_format_get_component_bits(visual->accum_format, |
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390 | UTIL_FORMAT_COLORSPACE_RGB, 0); |
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391 | mode->accumGreenBits = |
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392 | util_format_get_component_bits(visual->accum_format, |
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393 | UTIL_FORMAT_COLORSPACE_RGB, 1); |
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394 | mode->accumBlueBits = |
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395 | util_format_get_component_bits(visual->accum_format, |
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396 | UTIL_FORMAT_COLORSPACE_RGB, 2); |
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397 | mode->accumAlphaBits = |
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398 | util_format_get_component_bits(visual->accum_format, |
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399 | UTIL_FORMAT_COLORSPACE_RGB, 3); |
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400 | } |
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401 | |||
402 | if (visual->samples > 1) { |
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403 | mode->sampleBuffers = 1; |
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404 | mode->samples = visual->samples; |
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405 | } |
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406 | } |
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407 | |||
408 | /** |
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409 | * Create a framebuffer from a manager interface. |
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410 | */ |
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411 | static struct st_framebuffer * |
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412 | st_framebuffer_create(struct st_context *st, |
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413 | struct st_framebuffer_iface *stfbi) |
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414 | { |
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415 | struct st_framebuffer *stfb; |
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416 | struct gl_config mode; |
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417 | gl_buffer_index idx; |
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418 | |||
419 | if (!stfbi) |
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420 | return NULL; |
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421 | |||
422 | stfb = CALLOC_STRUCT(st_framebuffer); |
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423 | if (!stfb) |
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424 | return NULL; |
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425 | |||
426 | st_visual_to_context_mode(stfbi->visual, &mode); |
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427 | |||
428 | /* |
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429 | * For desktop GL, sRGB framebuffer write is controlled by both the |
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430 | * capability of the framebuffer and GL_FRAMEBUFFER_SRGB. We should |
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431 | * advertise the capability when the pipe driver (and core Mesa) supports |
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432 | * it so that applications can enable sRGB write when they want to. |
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433 | * |
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434 | * This is not to be confused with GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB. When |
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435 | * the attribute is GLX_TRUE, it tells the st manager to pick a color |
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436 | * format such that util_format_srgb(visual->color_format) can be supported |
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437 | * by the pipe driver. We still need to advertise the capability here. |
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438 | * |
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439 | * For GLES, however, sRGB framebuffer write is controlled only by the |
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440 | * capability of the framebuffer. There is GL_EXT_sRGB_write_control to |
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441 | * give applications the control back, but sRGB write is still enabled by |
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442 | * default. To avoid unexpected results, we should not advertise the |
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443 | * capability. This could change when we add support for |
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444 | * EGL_KHR_gl_colorspace. |
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445 | */ |
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446 | if (_mesa_is_desktop_gl(st->ctx)) { |
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447 | struct pipe_screen *screen = st->pipe->screen; |
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448 | const enum pipe_format srgb_format = |
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449 | util_format_srgb(stfbi->visual->color_format); |
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450 | |||
451 | if (srgb_format != PIPE_FORMAT_NONE && |
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452 | st_pipe_format_to_mesa_format(srgb_format) != MESA_FORMAT_NONE && |
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453 | screen->is_format_supported(screen, srgb_format, |
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454 | PIPE_TEXTURE_2D, stfbi->visual->samples, |
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455 | (PIPE_BIND_DISPLAY_TARGET | |
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456 | PIPE_BIND_RENDER_TARGET))) |
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457 | mode.sRGBCapable = GL_TRUE; |
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458 | } |
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459 | |||
460 | _mesa_initialize_window_framebuffer(&stfb->Base, &mode); |
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461 | |||
462 | stfb->iface = stfbi; |
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463 | stfb->iface_stamp = p_atomic_read(&stfbi->stamp) - 1; |
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464 | |||
465 | /* add the color buffer */ |
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466 | idx = stfb->Base._ColorDrawBufferIndexes[0]; |
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467 | if (!st_framebuffer_add_renderbuffer(stfb, idx)) { |
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468 | free(stfb); |
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469 | return NULL; |
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470 | } |
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471 | |||
472 | st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH); |
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473 | st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM); |
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474 | |||
475 | stfb->stamp = 0; |
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476 | st_framebuffer_update_attachments(stfb); |
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477 | |||
478 | return stfb; |
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479 | } |
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480 | |||
481 | /** |
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482 | * Reference a framebuffer. |
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483 | */ |
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484 | static void |
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485 | st_framebuffer_reference(struct st_framebuffer **ptr, |
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486 | struct st_framebuffer *stfb) |
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487 | { |
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488 | struct gl_framebuffer *fb = &stfb->Base; |
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489 | _mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb); |
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490 | } |
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491 | |||
492 | static void |
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493 | st_context_flush(struct st_context_iface *stctxi, unsigned flags, |
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494 | struct pipe_fence_handle **fence) |
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495 | { |
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496 | struct st_context *st = (struct st_context *) stctxi; |
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497 | unsigned pipe_flags = 0; |
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498 | |||
499 | if (flags & ST_FLUSH_END_OF_FRAME) { |
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500 | pipe_flags |= PIPE_FLUSH_END_OF_FRAME; |
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501 | } |
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502 | |||
503 | st_flush(st, fence, pipe_flags); |
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504 | if (flags & ST_FLUSH_FRONT) |
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505 | st_manager_flush_frontbuffer(st); |
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506 | } |
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507 | |||
508 | static boolean |
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509 | st_context_teximage(struct st_context_iface *stctxi, |
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510 | enum st_texture_type tex_type, |
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511 | int level, enum pipe_format pipe_format, |
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512 | struct pipe_resource *tex, boolean mipmap) |
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513 | { |
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514 | struct st_context *st = (struct st_context *) stctxi; |
||
515 | struct gl_context *ctx = st->ctx; |
||
516 | struct gl_texture_object *texObj; |
||
517 | struct gl_texture_image *texImage; |
||
518 | struct st_texture_object *stObj; |
||
519 | struct st_texture_image *stImage; |
||
520 | GLenum internalFormat; |
||
521 | GLuint width, height, depth; |
||
522 | GLenum target; |
||
523 | |||
524 | switch (tex_type) { |
||
525 | case ST_TEXTURE_1D: |
||
526 | target = GL_TEXTURE_1D; |
||
527 | break; |
||
528 | case ST_TEXTURE_2D: |
||
529 | target = GL_TEXTURE_2D; |
||
530 | break; |
||
531 | case ST_TEXTURE_3D: |
||
532 | target = GL_TEXTURE_3D; |
||
533 | break; |
||
534 | case ST_TEXTURE_RECT: |
||
535 | target = GL_TEXTURE_RECTANGLE_ARB; |
||
536 | break; |
||
537 | default: |
||
538 | return FALSE; |
||
539 | } |
||
540 | |||
541 | texObj = _mesa_get_current_tex_object(ctx, target); |
||
542 | |||
543 | _mesa_lock_texture(ctx, texObj); |
||
544 | |||
545 | stObj = st_texture_object(texObj); |
||
546 | /* switch to surface based */ |
||
547 | if (!stObj->surface_based) { |
||
548 | _mesa_clear_texture_object(ctx, texObj); |
||
549 | stObj->surface_based = GL_TRUE; |
||
550 | } |
||
551 | |||
552 | texImage = _mesa_get_tex_image(ctx, texObj, target, level); |
||
553 | stImage = st_texture_image(texImage); |
||
554 | if (tex) { |
||
555 | mesa_format texFormat = st_pipe_format_to_mesa_format(pipe_format); |
||
556 | |||
557 | if (util_format_has_alpha(tex->format)) |
||
558 | internalFormat = GL_RGBA; |
||
559 | else |
||
560 | internalFormat = GL_RGB; |
||
561 | |||
562 | _mesa_init_teximage_fields(ctx, texImage, |
||
563 | tex->width0, tex->height0, 1, 0, |
||
564 | internalFormat, texFormat); |
||
565 | |||
566 | width = tex->width0; |
||
567 | height = tex->height0; |
||
568 | depth = tex->depth0; |
||
569 | |||
570 | /* grow the image size until we hit level = 0 */ |
||
571 | while (level > 0) { |
||
572 | if (width != 1) |
||
573 | width <<= 1; |
||
574 | if (height != 1) |
||
575 | height <<= 1; |
||
576 | if (depth != 1) |
||
577 | depth <<= 1; |
||
578 | level--; |
||
579 | } |
||
580 | } |
||
581 | else { |
||
582 | _mesa_clear_texture_image(ctx, texImage); |
||
583 | width = height = depth = 0; |
||
584 | } |
||
585 | |||
586 | pipe_resource_reference(&stImage->pt, tex); |
||
587 | stObj->width0 = width; |
||
588 | stObj->height0 = height; |
||
589 | stObj->depth0 = depth; |
||
590 | stObj->surface_format = pipe_format; |
||
591 | |||
592 | _mesa_dirty_texobj(ctx, texObj); |
||
593 | _mesa_unlock_texture(ctx, texObj); |
||
594 | |||
595 | return TRUE; |
||
596 | } |
||
597 | |||
598 | static void |
||
599 | st_context_copy(struct st_context_iface *stctxi, |
||
600 | struct st_context_iface *stsrci, unsigned mask) |
||
601 | { |
||
602 | struct st_context *st = (struct st_context *) stctxi; |
||
603 | struct st_context *src = (struct st_context *) stsrci; |
||
604 | |||
605 | _mesa_copy_context(src->ctx, st->ctx, mask); |
||
606 | } |
||
607 | |||
608 | static boolean |
||
609 | st_context_share(struct st_context_iface *stctxi, |
||
610 | struct st_context_iface *stsrci) |
||
611 | { |
||
612 | struct st_context *st = (struct st_context *) stctxi; |
||
613 | struct st_context *src = (struct st_context *) stsrci; |
||
614 | |||
615 | return _mesa_share_state(st->ctx, src->ctx); |
||
616 | } |
||
617 | |||
618 | static void |
||
619 | st_context_destroy(struct st_context_iface *stctxi) |
||
620 | { |
||
621 | struct st_context *st = (struct st_context *) stctxi; |
||
622 | st_destroy_context(st); |
||
623 | } |
||
624 | |||
625 | static struct st_context_iface * |
||
626 | st_api_create_context(struct st_api *stapi, struct st_manager *smapi, |
||
627 | const struct st_context_attribs *attribs, |
||
628 | enum st_context_error *error, |
||
629 | struct st_context_iface *shared_stctxi) |
||
630 | { |
||
631 | struct st_context *shared_ctx = (struct st_context *) shared_stctxi; |
||
632 | struct st_context *st; |
||
633 | struct pipe_context *pipe; |
||
634 | struct gl_config mode; |
||
635 | gl_api api; |
||
636 | |||
637 | if (!(stapi->profile_mask & (1 << attribs->profile))) |
||
638 | return NULL; |
||
639 | |||
640 | switch (attribs->profile) { |
||
641 | case ST_PROFILE_DEFAULT: |
||
642 | api = API_OPENGL_COMPAT; |
||
643 | break; |
||
644 | case ST_PROFILE_OPENGL_ES1: |
||
645 | api = API_OPENGLES; |
||
646 | break; |
||
647 | case ST_PROFILE_OPENGL_ES2: |
||
648 | api = API_OPENGLES2; |
||
649 | break; |
||
650 | case ST_PROFILE_OPENGL_CORE: |
||
651 | api = API_OPENGL_CORE; |
||
652 | break; |
||
653 | default: |
||
654 | *error = ST_CONTEXT_ERROR_BAD_API; |
||
655 | return NULL; |
||
656 | break; |
||
657 | } |
||
658 | |||
659 | pipe = smapi->screen->context_create(smapi->screen, NULL); |
||
660 | if (!pipe) { |
||
661 | *error = ST_CONTEXT_ERROR_NO_MEMORY; |
||
662 | return NULL; |
||
663 | } |
||
664 | |||
665 | st_visual_to_context_mode(&attribs->visual, &mode); |
||
666 | st = st_create_context(api, pipe, &mode, shared_ctx, &attribs->options); |
||
667 | if (!st) { |
||
668 | *error = ST_CONTEXT_ERROR_NO_MEMORY; |
||
669 | pipe->destroy(pipe); |
||
670 | return NULL; |
||
671 | } |
||
672 | |||
673 | if (attribs->flags & ST_CONTEXT_FLAG_DEBUG){ |
||
674 | if (!_mesa_set_debug_state_int(st->ctx, GL_DEBUG_OUTPUT, GL_TRUE)) { |
||
675 | *error = ST_CONTEXT_ERROR_NO_MEMORY; |
||
676 | return NULL; |
||
677 | } |
||
678 | st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_DEBUG_BIT; |
||
679 | } |
||
680 | |||
681 | if (attribs->flags & ST_CONTEXT_FLAG_FORWARD_COMPATIBLE) |
||
682 | st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT; |
||
683 | if (attribs->flags & ST_CONTEXT_FLAG_ROBUST_ACCESS) |
||
684 | st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB; |
||
685 | if (attribs->flags & ST_CONTEXT_FLAG_RESET_NOTIFICATION_ENABLED) |
||
686 | st->ctx->Const.ResetStrategy = GL_LOSE_CONTEXT_ON_RESET_ARB; |
||
687 | |||
688 | /* need to perform version check */ |
||
689 | if (attribs->major > 1 || attribs->minor > 0) { |
||
690 | /* Is the actual version less than the requested version? |
||
691 | */ |
||
692 | if (st->ctx->Version < attribs->major * 10U + attribs->minor) { |
||
693 | *error = ST_CONTEXT_ERROR_BAD_VERSION; |
||
694 | st_destroy_context(st); |
||
695 | return NULL; |
||
696 | } |
||
697 | } |
||
698 | |||
699 | st->invalidate_on_gl_viewport = |
||
700 | smapi->get_param(smapi, ST_MANAGER_BROKEN_INVALIDATE); |
||
701 | |||
702 | st->iface.destroy = st_context_destroy; |
||
703 | st->iface.flush = st_context_flush; |
||
704 | st->iface.teximage = st_context_teximage; |
||
705 | st->iface.copy = st_context_copy; |
||
706 | st->iface.share = st_context_share; |
||
707 | st->iface.st_context_private = (void *) smapi; |
||
708 | st->iface.cso_context = st->cso_context; |
||
709 | st->iface.pipe = st->pipe; |
||
710 | |||
711 | *error = ST_CONTEXT_SUCCESS; |
||
712 | return &st->iface; |
||
713 | } |
||
714 | |||
715 | static struct st_context_iface * |
||
716 | st_api_get_current(struct st_api *stapi) |
||
717 | { |
||
718 | GET_CURRENT_CONTEXT(ctx); |
||
719 | struct st_context *st = (ctx) ? ctx->st : NULL; |
||
720 | |||
721 | return (st) ? &st->iface : NULL; |
||
722 | } |
||
723 | |||
724 | static struct st_framebuffer * |
||
725 | st_framebuffer_reuse_or_create(struct st_context *st, |
||
726 | struct gl_framebuffer *fb, |
||
727 | struct st_framebuffer_iface *stfbi) |
||
728 | { |
||
729 | struct st_framebuffer *cur = st_ws_framebuffer(fb), *stfb = NULL; |
||
730 | |||
731 | /* dummy framebuffers cant be used as st_framebuffer */ |
||
732 | if (cur && &cur->Base != _mesa_get_incomplete_framebuffer() && |
||
733 | cur->iface == stfbi) { |
||
734 | /* reuse the current stfb */ |
||
735 | st_framebuffer_reference(&stfb, cur); |
||
736 | } |
||
737 | else { |
||
738 | /* create a new one */ |
||
739 | stfb = st_framebuffer_create(st, stfbi); |
||
740 | } |
||
741 | |||
742 | return stfb; |
||
743 | } |
||
744 | |||
745 | static boolean |
||
746 | st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi, |
||
747 | struct st_framebuffer_iface *stdrawi, |
||
748 | struct st_framebuffer_iface *streadi) |
||
749 | { |
||
750 | struct st_context *st = (struct st_context *) stctxi; |
||
751 | struct st_framebuffer *stdraw, *stread; |
||
752 | boolean ret; |
||
753 | |||
754 | _glapi_check_multithread(); |
||
755 | |||
756 | if (st) { |
||
757 | /* reuse or create the draw fb */ |
||
758 | stdraw = st_framebuffer_reuse_or_create(st, |
||
759 | st->ctx->WinSysDrawBuffer, stdrawi); |
||
760 | if (streadi != stdrawi) { |
||
761 | /* do the same for the read fb */ |
||
762 | stread = st_framebuffer_reuse_or_create(st, |
||
763 | st->ctx->WinSysReadBuffer, streadi); |
||
764 | } |
||
765 | else { |
||
766 | stread = NULL; |
||
767 | /* reuse the draw fb for the read fb */ |
||
768 | if (stdraw) |
||
769 | st_framebuffer_reference(&stread, stdraw); |
||
770 | } |
||
771 | |||
772 | if (stdraw && stread) { |
||
773 | st_framebuffer_validate(stdraw, st); |
||
774 | if (stread != stdraw) |
||
775 | st_framebuffer_validate(stread, st); |
||
776 | |||
777 | ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base); |
||
778 | |||
779 | st->draw_stamp = stdraw->stamp - 1; |
||
780 | st->read_stamp = stread->stamp - 1; |
||
781 | st_context_validate(st, stdraw, stread); |
||
782 | } |
||
783 | else { |
||
784 | struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer(); |
||
785 | ret = _mesa_make_current(st->ctx, incomplete, incomplete); |
||
786 | } |
||
787 | |||
788 | st_framebuffer_reference(&stdraw, NULL); |
||
789 | st_framebuffer_reference(&stread, NULL); |
||
790 | } |
||
791 | else { |
||
792 | ret = _mesa_make_current(NULL, NULL, NULL); |
||
793 | } |
||
794 | |||
795 | return ret; |
||
796 | } |
||
797 | |||
798 | static st_proc_t |
||
799 | st_api_get_proc_address(struct st_api *stapi, const char *procname) |
||
800 | { |
||
801 | return (st_proc_t) _glapi_get_proc_address(procname); |
||
802 | } |
||
803 | |||
804 | static void |
||
805 | st_api_destroy(struct st_api *stapi) |
||
806 | { |
||
807 | } |
||
808 | |||
809 | /** |
||
810 | * Flush the front buffer if the current context renders to the front buffer. |
||
811 | */ |
||
812 | void |
||
813 | st_manager_flush_frontbuffer(struct st_context *st) |
||
814 | { |
||
815 | struct st_framebuffer *stfb = st_ws_framebuffer(st->ctx->DrawBuffer); |
||
816 | struct st_renderbuffer *strb = NULL; |
||
817 | |||
818 | if (stfb) |
||
819 | strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer); |
||
820 | if (!strb) |
||
821 | return; |
||
822 | |||
823 | /* never a dummy fb */ |
||
824 | assert(&stfb->Base != _mesa_get_incomplete_framebuffer()); |
||
825 | stfb->iface->flush_front(&st->iface, stfb->iface, ST_ATTACHMENT_FRONT_LEFT); |
||
826 | } |
||
827 | |||
828 | /** |
||
829 | * Return the surface of an EGLImage. |
||
830 | * FIXME: I think this should operate on resources, not surfaces |
||
831 | */ |
||
832 | struct pipe_surface * |
||
833 | st_manager_get_egl_image_surface(struct st_context *st, void *eglimg) |
||
834 | { |
||
835 | struct st_manager *smapi = |
||
836 | (struct st_manager *) st->iface.st_context_private; |
||
837 | struct st_egl_image stimg; |
||
838 | struct pipe_surface *ps, surf_tmpl; |
||
839 | |||
840 | if (!smapi || !smapi->get_egl_image) |
||
841 | return NULL; |
||
842 | |||
843 | memset(&stimg, 0, sizeof(stimg)); |
||
844 | if (!smapi->get_egl_image(smapi, eglimg, &stimg)) |
||
845 | return NULL; |
||
846 | |||
847 | u_surface_default_template(&surf_tmpl, stimg.texture); |
||
848 | surf_tmpl.u.tex.level = stimg.level; |
||
849 | surf_tmpl.u.tex.first_layer = stimg.layer; |
||
850 | surf_tmpl.u.tex.last_layer = stimg.layer; |
||
851 | ps = st->pipe->create_surface(st->pipe, stimg.texture, &surf_tmpl); |
||
852 | pipe_resource_reference(&stimg.texture, NULL); |
||
853 | |||
854 | return ps; |
||
855 | } |
||
856 | |||
857 | /** |
||
858 | * Re-validate the framebuffers. |
||
859 | */ |
||
860 | void |
||
861 | st_manager_validate_framebuffers(struct st_context *st) |
||
862 | { |
||
863 | struct st_framebuffer *stdraw = st_ws_framebuffer(st->ctx->DrawBuffer); |
||
864 | struct st_framebuffer *stread = st_ws_framebuffer(st->ctx->ReadBuffer); |
||
865 | |||
866 | if (stdraw) |
||
867 | st_framebuffer_validate(stdraw, st); |
||
868 | if (stread && stread != stdraw) |
||
869 | st_framebuffer_validate(stread, st); |
||
870 | |||
871 | st_context_validate(st, stdraw, stread); |
||
872 | } |
||
873 | |||
874 | /** |
||
875 | * Add a color renderbuffer on demand. |
||
876 | */ |
||
877 | boolean |
||
878 | st_manager_add_color_renderbuffer(struct st_context *st, |
||
879 | struct gl_framebuffer *fb, |
||
880 | gl_buffer_index idx) |
||
881 | { |
||
882 | struct st_framebuffer *stfb = st_ws_framebuffer(fb); |
||
883 | |||
884 | /* FBO */ |
||
885 | if (!stfb) |
||
886 | return FALSE; |
||
887 | |||
888 | if (stfb->Base.Attachment[idx].Renderbuffer) |
||
889 | return TRUE; |
||
890 | |||
891 | switch (idx) { |
||
892 | case BUFFER_FRONT_LEFT: |
||
893 | case BUFFER_BACK_LEFT: |
||
894 | case BUFFER_FRONT_RIGHT: |
||
895 | case BUFFER_BACK_RIGHT: |
||
896 | break; |
||
897 | default: |
||
898 | return FALSE; |
||
899 | break; |
||
900 | } |
||
901 | |||
902 | if (!st_framebuffer_add_renderbuffer(stfb, idx)) |
||
903 | return FALSE; |
||
904 | |||
905 | st_framebuffer_update_attachments(stfb); |
||
906 | |||
907 | /* |
||
908 | * Force a call to the state tracker manager to validate the |
||
909 | * new renderbuffer. It might be that there is a window system |
||
910 | * renderbuffer available. |
||
911 | */ |
||
912 | if(stfb->iface) |
||
913 | stfb->iface_stamp = p_atomic_read(&stfb->iface->stamp) - 1; |
||
914 | |||
915 | st_invalidate_state(st->ctx, _NEW_BUFFERS); |
||
916 | |||
917 | return TRUE; |
||
918 | } |
||
919 | |||
920 | static unsigned get_version(struct pipe_screen *screen, |
||
921 | struct st_config_options *options, gl_api api) |
||
922 | { |
||
923 | struct gl_constants consts = {0}; |
||
924 | struct gl_extensions extensions = {0}; |
||
925 | GLuint version; |
||
926 | |||
927 | if ((api == API_OPENGL_COMPAT || api == API_OPENGL_CORE) && |
||
928 | _mesa_override_gl_version_contextless(&consts, &api, &version)) { |
||
929 | return version; |
||
930 | } |
||
931 | |||
932 | _mesa_init_constants(&consts, api); |
||
933 | _mesa_init_extensions(&extensions); |
||
934 | |||
935 | st_init_limits(screen, &consts, &extensions); |
||
936 | st_init_extensions(screen, &consts, &extensions, options, GL_TRUE); |
||
937 | |||
938 | return _mesa_get_version(&extensions, &consts, api); |
||
939 | } |
||
940 | |||
941 | static void |
||
942 | st_api_query_versions(struct st_api *stapi, struct st_manager *sm, |
||
943 | struct st_config_options *options, |
||
944 | int *gl_core_version, |
||
945 | int *gl_compat_version, |
||
946 | int *gl_es1_version, |
||
947 | int *gl_es2_version) |
||
948 | { |
||
949 | *gl_core_version = get_version(sm->screen, options, API_OPENGL_CORE); |
||
950 | *gl_compat_version = get_version(sm->screen, options, API_OPENGL_COMPAT); |
||
951 | *gl_es1_version = get_version(sm->screen, options, API_OPENGLES); |
||
952 | *gl_es2_version = get_version(sm->screen, options, API_OPENGLES2); |
||
953 | } |
||
954 | |||
955 | static const struct st_api st_gl_api = { |
||
956 | "Mesa " PACKAGE_VERSION, |
||
957 | ST_API_OPENGL, |
||
958 | ST_PROFILE_DEFAULT_MASK | |
||
959 | ST_PROFILE_OPENGL_CORE_MASK | |
||
960 | ST_PROFILE_OPENGL_ES1_MASK | |
||
961 | ST_PROFILE_OPENGL_ES2_MASK | |
||
962 | 0, |
||
963 | ST_API_FEATURE_MS_VISUALS_MASK, |
||
964 | st_api_destroy, |
||
965 | st_api_query_versions, |
||
966 | st_api_get_proc_address, |
||
967 | st_api_create_context, |
||
968 | st_api_make_current, |
||
969 | st_api_get_current, |
||
970 | }; |
||
971 | |||
972 | struct st_api * |
||
973 | st_gl_api_create(void) |
||
974 | { |
||
975 | return (struct st_api *) &st_gl_api; |
||
976 | }>><>=><=>=><=>=><=>><>>> |