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1901 | serge | 1 | /* |
2 | * Mesa 3-D graphics library |
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3 | * Version: 7.2 |
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4 | * |
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5 | * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
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6 | * |
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7 | * Permission is hereby granted, free of charge, to any person obtaining a |
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8 | * copy of this software and associated documentation files (the "Software"), |
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9 | * to deal in the Software without restriction, including without limitation |
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10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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11 | * and/or sell copies of the Software, and to permit persons to whom the |
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12 | * Software is furnished to do so, subject to the following conditions: |
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13 | * |
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14 | * The above copyright notice and this permission notice shall be included |
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15 | * in all copies or substantial portions 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 MERCHANTABILITY, |
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19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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20 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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23 | */ |
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24 | |||
25 | |||
26 | /** |
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27 | * Functions for allocating/managing framebuffers and renderbuffers. |
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28 | * Also, routines for reading/writing renderbuffer data as ubytes, |
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29 | * ushorts, uints, etc. |
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30 | */ |
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31 | |||
32 | |||
33 | #include "glheader.h" |
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34 | #include "imports.h" |
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35 | #include "buffers.h" |
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36 | #include "context.h" |
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37 | #include "depthstencil.h" |
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38 | #include "enums.h" |
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39 | #include "formats.h" |
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40 | #include "macros.h" |
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41 | #include "mtypes.h" |
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42 | #include "fbobject.h" |
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43 | #include "framebuffer.h" |
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44 | #include "renderbuffer.h" |
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45 | #include "texobj.h" |
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46 | |||
47 | |||
48 | |||
49 | /** |
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50 | * Compute/set the _DepthMax field for the given framebuffer. |
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51 | * This value depends on the Z buffer resolution. |
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52 | */ |
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53 | static void |
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54 | compute_depth_max(struct gl_framebuffer *fb) |
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55 | { |
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56 | if (fb->Visual.depthBits == 0) { |
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57 | /* Special case. Even if we don't have a depth buffer we need |
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58 | * good values for DepthMax for Z vertex transformation purposes |
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59 | * and for per-fragment fog computation. |
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60 | */ |
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61 | fb->_DepthMax = (1 << 16) - 1; |
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62 | } |
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63 | else if (fb->Visual.depthBits < 32) { |
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64 | fb->_DepthMax = (1 << fb->Visual.depthBits) - 1; |
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65 | } |
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66 | else { |
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67 | /* Special case since shift values greater than or equal to the |
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68 | * number of bits in the left hand expression's type are undefined. |
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69 | */ |
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70 | fb->_DepthMax = 0xffffffff; |
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71 | } |
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72 | fb->_DepthMaxF = (GLfloat) fb->_DepthMax; |
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73 | |||
74 | /* Minimum resolvable depth value, for polygon offset */ |
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75 | fb->_MRD = (GLfloat)1.0 / fb->_DepthMaxF; |
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76 | } |
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77 | |||
78 | /** |
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79 | * Create and initialize a gl_framebuffer object. |
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80 | * This is intended for creating _window_system_ framebuffers, not generic |
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81 | * framebuffer objects ala GL_EXT_framebuffer_object. |
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82 | * |
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83 | * \sa _mesa_new_framebuffer |
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84 | */ |
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85 | struct gl_framebuffer * |
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86 | _mesa_create_framebuffer(const struct gl_config *visual) |
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87 | { |
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88 | struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer); |
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89 | assert(visual); |
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90 | if (fb) { |
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91 | _mesa_initialize_window_framebuffer(fb, visual); |
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92 | } |
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93 | return fb; |
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94 | } |
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95 | |||
96 | |||
97 | /** |
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98 | * Allocate a new gl_framebuffer object. |
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99 | * This is the default function for ctx->Driver.NewFramebuffer(). |
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100 | * This is for allocating user-created framebuffers, not window-system |
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101 | * framebuffers! |
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102 | * \sa _mesa_create_framebuffer |
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103 | */ |
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104 | struct gl_framebuffer * |
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105 | _mesa_new_framebuffer(struct gl_context *ctx, GLuint name) |
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106 | { |
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107 | struct gl_framebuffer *fb; |
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108 | (void) ctx; |
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109 | assert(name != 0); |
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110 | fb = CALLOC_STRUCT(gl_framebuffer); |
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111 | if (fb) { |
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112 | _mesa_initialize_user_framebuffer(fb, name); |
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113 | } |
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114 | return fb; |
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115 | } |
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116 | |||
117 | |||
118 | /** |
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119 | * Initialize a gl_framebuffer object. Typically used to initialize |
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120 | * window system-created framebuffers, not user-created framebuffers. |
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121 | * \sa _mesa_initialize_user_framebuffer |
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122 | */ |
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123 | void |
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124 | _mesa_initialize_window_framebuffer(struct gl_framebuffer *fb, |
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125 | const struct gl_config *visual) |
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126 | { |
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127 | assert(fb); |
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128 | assert(visual); |
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129 | |||
130 | memset(fb, 0, sizeof(struct gl_framebuffer)); |
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131 | |||
132 | _glthread_INIT_MUTEX(fb->Mutex); |
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133 | |||
134 | fb->RefCount = 1; |
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135 | |||
136 | /* save the visual */ |
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137 | fb->Visual = *visual; |
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138 | |||
139 | /* Init read/draw renderbuffer state */ |
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140 | if (visual->doubleBufferMode) { |
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141 | fb->_NumColorDrawBuffers = 1; |
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142 | fb->ColorDrawBuffer[0] = GL_BACK; |
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143 | fb->_ColorDrawBufferIndexes[0] = BUFFER_BACK_LEFT; |
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144 | fb->ColorReadBuffer = GL_BACK; |
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145 | fb->_ColorReadBufferIndex = BUFFER_BACK_LEFT; |
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146 | } |
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147 | else { |
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148 | fb->_NumColorDrawBuffers = 1; |
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149 | fb->ColorDrawBuffer[0] = GL_FRONT; |
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150 | fb->_ColorDrawBufferIndexes[0] = BUFFER_FRONT_LEFT; |
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151 | fb->ColorReadBuffer = GL_FRONT; |
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152 | fb->_ColorReadBufferIndex = BUFFER_FRONT_LEFT; |
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153 | } |
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154 | |||
155 | fb->Delete = _mesa_destroy_framebuffer; |
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156 | fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT; |
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157 | |||
158 | compute_depth_max(fb); |
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159 | } |
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160 | |||
161 | |||
162 | /** |
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163 | * Initialize a user-created gl_framebuffer object. |
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164 | * \sa _mesa_initialize_window_framebuffer |
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165 | */ |
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166 | void |
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167 | _mesa_initialize_user_framebuffer(struct gl_framebuffer *fb, GLuint name) |
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168 | { |
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169 | assert(fb); |
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170 | assert(name); |
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171 | |||
172 | memset(fb, 0, sizeof(struct gl_framebuffer)); |
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173 | |||
174 | fb->Name = name; |
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175 | fb->RefCount = 1; |
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176 | fb->_NumColorDrawBuffers = 1; |
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177 | fb->ColorDrawBuffer[0] = GL_COLOR_ATTACHMENT0_EXT; |
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178 | fb->_ColorDrawBufferIndexes[0] = BUFFER_COLOR0; |
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179 | fb->ColorReadBuffer = GL_COLOR_ATTACHMENT0_EXT; |
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180 | fb->_ColorReadBufferIndex = BUFFER_COLOR0; |
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181 | fb->Delete = _mesa_destroy_framebuffer; |
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182 | _glthread_INIT_MUTEX(fb->Mutex); |
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183 | } |
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184 | |||
185 | |||
186 | /** |
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187 | * Deallocate buffer and everything attached to it. |
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188 | * Typically called via the gl_framebuffer->Delete() method. |
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189 | */ |
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190 | void |
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191 | _mesa_destroy_framebuffer(struct gl_framebuffer *fb) |
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192 | { |
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193 | if (fb) { |
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194 | _mesa_free_framebuffer_data(fb); |
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195 | free(fb); |
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196 | } |
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197 | } |
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198 | |||
199 | |||
200 | /** |
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201 | * Free all the data hanging off the given gl_framebuffer, but don't free |
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202 | * the gl_framebuffer object itself. |
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203 | */ |
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204 | void |
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205 | _mesa_free_framebuffer_data(struct gl_framebuffer *fb) |
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206 | { |
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207 | GLuint i; |
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208 | |||
209 | assert(fb); |
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210 | assert(fb->RefCount == 0); |
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211 | |||
212 | _glthread_DESTROY_MUTEX(fb->Mutex); |
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213 | |||
214 | for (i = 0; i < BUFFER_COUNT; i++) { |
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215 | struct gl_renderbuffer_attachment *att = &fb->Attachment[i]; |
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216 | if (att->Renderbuffer) { |
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217 | _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); |
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218 | } |
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219 | if (att->Texture) { |
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220 | _mesa_reference_texobj(&att->Texture, NULL); |
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221 | } |
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222 | ASSERT(!att->Renderbuffer); |
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223 | ASSERT(!att->Texture); |
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224 | att->Type = GL_NONE; |
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225 | } |
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226 | |||
227 | /* unbind _Depth/_StencilBuffer to decr ref counts */ |
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228 | _mesa_reference_renderbuffer(&fb->_DepthBuffer, NULL); |
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229 | _mesa_reference_renderbuffer(&fb->_StencilBuffer, NULL); |
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230 | } |
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231 | |||
232 | |||
233 | /** |
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234 | * Set *ptr to point to fb, with refcounting and locking. |
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235 | */ |
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236 | void |
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237 | _mesa_reference_framebuffer(struct gl_framebuffer **ptr, |
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238 | struct gl_framebuffer *fb) |
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239 | { |
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240 | assert(ptr); |
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241 | if (*ptr == fb) { |
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242 | /* no change */ |
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243 | return; |
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244 | } |
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245 | |||
246 | if (*ptr) { |
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247 | /* unreference old renderbuffer */ |
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248 | GLboolean deleteFlag = GL_FALSE; |
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249 | struct gl_framebuffer *oldFb = *ptr; |
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250 | |||
251 | _glthread_LOCK_MUTEX(oldFb->Mutex); |
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252 | ASSERT(oldFb->RefCount > 0); |
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253 | oldFb->RefCount--; |
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254 | deleteFlag = (oldFb->RefCount == 0); |
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255 | _glthread_UNLOCK_MUTEX(oldFb->Mutex); |
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256 | |||
257 | if (deleteFlag) |
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258 | oldFb->Delete(oldFb); |
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259 | |||
260 | *ptr = NULL; |
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261 | } |
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262 | assert(!*ptr); |
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263 | |||
264 | if (fb) { |
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265 | _glthread_LOCK_MUTEX(fb->Mutex); |
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266 | fb->RefCount++; |
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267 | _glthread_UNLOCK_MUTEX(fb->Mutex); |
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268 | *ptr = fb; |
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269 | } |
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270 | } |
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271 | |||
272 | |||
273 | /** |
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274 | * Resize the given framebuffer's renderbuffers to the new width and height. |
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275 | * This should only be used for window-system framebuffers, not |
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276 | * user-created renderbuffers (i.e. made with GL_EXT_framebuffer_object). |
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277 | * This will typically be called via ctx->Driver.ResizeBuffers() or directly |
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278 | * from a device driver. |
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279 | * |
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280 | * \note it's possible for ctx to be null since a window can be resized |
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281 | * without a currently bound rendering context. |
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282 | */ |
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283 | void |
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284 | _mesa_resize_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb, |
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285 | GLuint width, GLuint height) |
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286 | { |
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287 | GLuint i; |
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288 | |||
289 | /* XXX I think we could check if the size is not changing |
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290 | * and return early. |
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291 | */ |
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292 | |||
293 | /* For window system framebuffers, Name is zero */ |
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294 | assert(fb->Name == 0); |
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295 | |||
296 | for (i = 0; i < BUFFER_COUNT; i++) { |
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297 | struct gl_renderbuffer_attachment *att = &fb->Attachment[i]; |
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298 | if (att->Type == GL_RENDERBUFFER_EXT && att->Renderbuffer) { |
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299 | struct gl_renderbuffer *rb = att->Renderbuffer; |
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300 | /* only resize if size is changing */ |
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301 | if (rb->Width != width || rb->Height != height) { |
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302 | if (rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height)) { |
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303 | ASSERT(rb->Width == width); |
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304 | ASSERT(rb->Height == height); |
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305 | } |
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306 | else { |
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307 | _mesa_error(ctx, GL_OUT_OF_MEMORY, "Resizing framebuffer"); |
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308 | /* no return */ |
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309 | } |
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310 | } |
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311 | } |
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312 | } |
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313 | |||
314 | if (fb->_DepthBuffer) { |
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315 | struct gl_renderbuffer *rb = fb->_DepthBuffer; |
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316 | if (rb->Width != width || rb->Height != height) { |
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317 | if (!rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height)) { |
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318 | _mesa_error(ctx, GL_OUT_OF_MEMORY, "Resizing framebuffer"); |
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319 | } |
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320 | } |
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321 | } |
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322 | |||
323 | if (fb->_StencilBuffer) { |
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324 | struct gl_renderbuffer *rb = fb->_StencilBuffer; |
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325 | if (rb->Width != width || rb->Height != height) { |
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326 | if (!rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height)) { |
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327 | _mesa_error(ctx, GL_OUT_OF_MEMORY, "Resizing framebuffer"); |
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328 | } |
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329 | } |
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330 | } |
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331 | |||
332 | fb->Width = width; |
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333 | fb->Height = height; |
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334 | |||
335 | if (ctx) { |
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336 | /* update scissor / window bounds */ |
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337 | _mesa_update_draw_buffer_bounds(ctx); |
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338 | /* Signal new buffer state so that swrast will update its clipping |
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339 | * info (the CLIP_BIT flag). |
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340 | */ |
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341 | ctx->NewState |= _NEW_BUFFERS; |
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342 | } |
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343 | } |
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344 | |||
345 | |||
346 | |||
347 | /** |
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348 | * XXX THIS IS OBSOLETE - drivers should take care of detecting window |
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349 | * size changes and act accordingly, likely calling _mesa_resize_framebuffer(). |
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350 | * |
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351 | * GL_MESA_resize_buffers extension. |
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352 | * |
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353 | * When this function is called, we'll ask the window system how large |
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354 | * the current window is. If it's a new size, we'll call the driver's |
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355 | * ResizeBuffers function. The driver will then resize its color buffers |
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356 | * as needed, and maybe call the swrast's routine for reallocating |
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357 | * swrast-managed depth/stencil/accum/etc buffers. |
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358 | * \note This function should only be called through the GL API, not |
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359 | * from device drivers (as was done in the past). |
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360 | */ |
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361 | void |
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362 | _mesa_resizebuffers( struct gl_context *ctx ) |
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363 | { |
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364 | ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx ); |
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365 | |||
366 | if (MESA_VERBOSE & VERBOSE_API) |
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367 | _mesa_debug(ctx, "glResizeBuffersMESA\n"); |
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368 | |||
369 | if (!ctx->Driver.GetBufferSize) { |
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370 | return; |
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371 | } |
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372 | |||
373 | if (ctx->WinSysDrawBuffer) { |
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374 | GLuint newWidth, newHeight; |
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375 | struct gl_framebuffer *buffer = ctx->WinSysDrawBuffer; |
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376 | |||
377 | assert(buffer->Name == 0); |
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378 | |||
379 | /* ask device driver for size of output buffer */ |
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380 | ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight ); |
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381 | |||
382 | /* see if size of device driver's color buffer (window) has changed */ |
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383 | if (buffer->Width != newWidth || buffer->Height != newHeight) { |
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384 | if (ctx->Driver.ResizeBuffers) |
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385 | ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight ); |
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386 | } |
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387 | } |
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388 | |||
389 | if (ctx->WinSysReadBuffer |
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390 | && ctx->WinSysReadBuffer != ctx->WinSysDrawBuffer) { |
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391 | GLuint newWidth, newHeight; |
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392 | struct gl_framebuffer *buffer = ctx->WinSysReadBuffer; |
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393 | |||
394 | assert(buffer->Name == 0); |
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395 | |||
396 | /* ask device driver for size of read buffer */ |
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397 | ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight ); |
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398 | |||
399 | /* see if size of device driver's color buffer (window) has changed */ |
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400 | if (buffer->Width != newWidth || buffer->Height != newHeight) { |
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401 | if (ctx->Driver.ResizeBuffers) |
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402 | ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight ); |
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403 | } |
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404 | } |
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405 | |||
406 | ctx->NewState |= _NEW_BUFFERS; /* to update scissor / window bounds */ |
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407 | } |
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408 | |||
409 | |||
410 | /* |
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411 | * XXX THIS IS OBSOLETE |
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412 | */ |
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413 | void GLAPIENTRY |
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414 | _mesa_ResizeBuffersMESA( void ) |
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415 | { |
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416 | GET_CURRENT_CONTEXT(ctx); |
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417 | |||
418 | if (ctx->Extensions.MESA_resize_buffers) |
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419 | _mesa_resizebuffers( ctx ); |
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420 | } |
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421 | |||
422 | |||
423 | |||
424 | /** |
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425 | * Examine all the framebuffer's renderbuffers to update the Width/Height |
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426 | * fields of the framebuffer. If we have renderbuffers with different |
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427 | * sizes, set the framebuffer's width and height to the min size. |
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428 | * Note: this is only intended for user-created framebuffers, not |
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429 | * window-system framebuffes. |
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430 | */ |
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431 | static void |
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432 | update_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb) |
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433 | { |
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434 | GLuint minWidth = ~0, minHeight = ~0; |
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435 | GLuint i; |
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436 | |||
437 | /* user-created framebuffers only */ |
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438 | assert(fb->Name); |
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439 | |||
440 | for (i = 0; i < BUFFER_COUNT; i++) { |
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441 | struct gl_renderbuffer_attachment *att = &fb->Attachment[i]; |
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442 | const struct gl_renderbuffer *rb = att->Renderbuffer; |
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443 | if (rb) { |
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444 | minWidth = MIN2(minWidth, rb->Width); |
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445 | minHeight = MIN2(minHeight, rb->Height); |
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446 | } |
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447 | } |
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448 | |||
449 | if (minWidth != ~0) { |
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450 | fb->Width = minWidth; |
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451 | fb->Height = minHeight; |
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452 | } |
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453 | else { |
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454 | fb->Width = 0; |
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455 | fb->Height = 0; |
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456 | } |
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457 | } |
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458 | |||
459 | |||
460 | /** |
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461 | * Update the context's current drawing buffer's Xmin, Xmax, Ymin, Ymax fields. |
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462 | * These values are computed from the buffer's width and height and |
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463 | * the scissor box, if it's enabled. |
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464 | * \param ctx the GL context. |
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465 | */ |
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466 | void |
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467 | _mesa_update_draw_buffer_bounds(struct gl_context *ctx) |
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468 | { |
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469 | struct gl_framebuffer *buffer = ctx->DrawBuffer; |
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470 | |||
471 | if (!buffer) |
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472 | return; |
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473 | |||
474 | if (buffer->Name) { |
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475 | /* user-created framebuffer size depends on the renderbuffers */ |
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476 | update_framebuffer_size(ctx, buffer); |
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477 | } |
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478 | |||
479 | buffer->_Xmin = 0; |
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480 | buffer->_Ymin = 0; |
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481 | buffer->_Xmax = buffer->Width; |
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482 | buffer->_Ymax = buffer->Height; |
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483 | |||
484 | if (ctx->Scissor.Enabled) { |
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485 | if (ctx->Scissor.X > buffer->_Xmin) { |
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486 | buffer->_Xmin = ctx->Scissor.X; |
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487 | } |
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488 | if (ctx->Scissor.Y > buffer->_Ymin) { |
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489 | buffer->_Ymin = ctx->Scissor.Y; |
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490 | } |
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491 | if (ctx->Scissor.X + ctx->Scissor.Width < buffer->_Xmax) { |
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492 | buffer->_Xmax = ctx->Scissor.X + ctx->Scissor.Width; |
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493 | } |
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494 | if (ctx->Scissor.Y + ctx->Scissor.Height < buffer->_Ymax) { |
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495 | buffer->_Ymax = ctx->Scissor.Y + ctx->Scissor.Height; |
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496 | } |
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497 | /* finally, check for empty region */ |
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498 | if (buffer->_Xmin > buffer->_Xmax) { |
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499 | buffer->_Xmin = buffer->_Xmax; |
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500 | } |
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501 | if (buffer->_Ymin > buffer->_Ymax) { |
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502 | buffer->_Ymin = buffer->_Ymax; |
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503 | } |
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504 | } |
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505 | |||
506 | ASSERT(buffer->_Xmin <= buffer->_Xmax); |
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507 | ASSERT(buffer->_Ymin <= buffer->_Ymax); |
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508 | } |
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509 | |||
510 | |||
511 | /** |
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512 | * The glGet queries of the framebuffer red/green/blue size, stencil size, |
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513 | * etc. are satisfied by the fields of ctx->DrawBuffer->Visual. These can |
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514 | * change depending on the renderbuffer bindings. This function updates |
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515 | * the given framebuffer's Visual from the current renderbuffer bindings. |
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516 | * |
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517 | * This may apply to user-created framebuffers or window system framebuffers. |
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518 | * |
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519 | * Also note: ctx->DrawBuffer->Visual.depthBits might not equal |
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520 | * ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer.DepthBits. |
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521 | * The former one is used to convert floating point depth values into |
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522 | * integer Z values. |
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523 | */ |
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524 | void |
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525 | _mesa_update_framebuffer_visual(struct gl_framebuffer *fb) |
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526 | { |
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527 | GLuint i; |
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528 | |||
529 | memset(&fb->Visual, 0, sizeof(fb->Visual)); |
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530 | fb->Visual.rgbMode = GL_TRUE; /* assume this */ |
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531 | |||
532 | #if 0 /* this _might_ be needed */ |
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533 | if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { |
||
534 | /* leave visual fields zero'd */ |
||
535 | return; |
||
536 | } |
||
537 | #endif |
||
538 | |||
539 | /* find first RGB renderbuffer */ |
||
540 | for (i = 0; i < BUFFER_COUNT; i++) { |
||
541 | if (fb->Attachment[i].Renderbuffer) { |
||
542 | const struct gl_renderbuffer *rb = fb->Attachment[i].Renderbuffer; |
||
543 | const GLenum baseFormat = _mesa_get_format_base_format(rb->Format); |
||
544 | const gl_format fmt = rb->Format; |
||
545 | |||
546 | if (baseFormat == GL_RGBA || baseFormat == GL_RGB || |
||
547 | baseFormat == GL_ALPHA) { |
||
548 | fb->Visual.redBits = _mesa_get_format_bits(fmt, GL_RED_BITS); |
||
549 | fb->Visual.greenBits = _mesa_get_format_bits(fmt, GL_GREEN_BITS); |
||
550 | fb->Visual.blueBits = _mesa_get_format_bits(fmt, GL_BLUE_BITS); |
||
551 | fb->Visual.alphaBits = _mesa_get_format_bits(fmt, GL_ALPHA_BITS); |
||
552 | fb->Visual.rgbBits = fb->Visual.redBits |
||
553 | + fb->Visual.greenBits + fb->Visual.blueBits; |
||
554 | fb->Visual.floatMode = GL_FALSE; |
||
555 | fb->Visual.samples = rb->NumSamples; |
||
556 | break; |
||
557 | } |
||
558 | } |
||
559 | } |
||
560 | |||
561 | if (fb->Attachment[BUFFER_DEPTH].Renderbuffer) { |
||
562 | const struct gl_renderbuffer *rb = |
||
563 | fb->Attachment[BUFFER_DEPTH].Renderbuffer; |
||
564 | const gl_format fmt = rb->Format; |
||
565 | fb->Visual.haveDepthBuffer = GL_TRUE; |
||
566 | fb->Visual.depthBits = _mesa_get_format_bits(fmt, GL_DEPTH_BITS); |
||
567 | } |
||
568 | |||
569 | if (fb->Attachment[BUFFER_STENCIL].Renderbuffer) { |
||
570 | const struct gl_renderbuffer *rb = |
||
571 | fb->Attachment[BUFFER_STENCIL].Renderbuffer; |
||
572 | const gl_format fmt = rb->Format; |
||
573 | fb->Visual.haveStencilBuffer = GL_TRUE; |
||
574 | fb->Visual.stencilBits = _mesa_get_format_bits(fmt, GL_STENCIL_BITS); |
||
575 | } |
||
576 | |||
577 | if (fb->Attachment[BUFFER_ACCUM].Renderbuffer) { |
||
578 | const struct gl_renderbuffer *rb = |
||
579 | fb->Attachment[BUFFER_ACCUM].Renderbuffer; |
||
580 | const gl_format fmt = rb->Format; |
||
581 | fb->Visual.haveAccumBuffer = GL_TRUE; |
||
582 | fb->Visual.accumRedBits = _mesa_get_format_bits(fmt, GL_RED_BITS); |
||
583 | fb->Visual.accumGreenBits = _mesa_get_format_bits(fmt, GL_GREEN_BITS); |
||
584 | fb->Visual.accumBlueBits = _mesa_get_format_bits(fmt, GL_BLUE_BITS); |
||
585 | fb->Visual.accumAlphaBits = _mesa_get_format_bits(fmt, GL_ALPHA_BITS); |
||
586 | } |
||
587 | |||
588 | compute_depth_max(fb); |
||
589 | } |
||
590 | |||
591 | |||
592 | /** |
||
593 | * Update the framebuffer's _DepthBuffer field using the renderbuffer |
||
594 | * found at the given attachment index. |
||
595 | * |
||
596 | * If that attachment points to a combined GL_DEPTH_STENCIL renderbuffer, |
||
597 | * create and install a depth wrapper/adaptor. |
||
598 | * |
||
599 | * \param fb the framebuffer whose _DepthBuffer field to update |
||
600 | * \param attIndex indicates the renderbuffer to possibly wrap |
||
601 | */ |
||
602 | void |
||
603 | _mesa_update_depth_buffer(struct gl_context *ctx, |
||
604 | struct gl_framebuffer *fb, |
||
605 | GLuint attIndex) |
||
606 | { |
||
607 | struct gl_renderbuffer *depthRb; |
||
608 | |||
609 | /* only one possiblity for now */ |
||
610 | ASSERT(attIndex == BUFFER_DEPTH); |
||
611 | |||
612 | depthRb = fb->Attachment[attIndex].Renderbuffer; |
||
613 | |||
614 | if (depthRb && _mesa_is_format_packed_depth_stencil(depthRb->Format)) { |
||
615 | /* The attached depth buffer is a GL_DEPTH_STENCIL renderbuffer */ |
||
616 | if (!fb->_DepthBuffer |
||
617 | || fb->_DepthBuffer->Wrapped != depthRb |
||
618 | || _mesa_get_format_base_format(fb->_DepthBuffer->Format) != GL_DEPTH_COMPONENT) { |
||
619 | /* need to update wrapper */ |
||
620 | struct gl_renderbuffer *wrapper |
||
621 | = _mesa_new_z24_renderbuffer_wrapper(ctx, depthRb); |
||
622 | _mesa_reference_renderbuffer(&fb->_DepthBuffer, wrapper); |
||
623 | ASSERT(fb->_DepthBuffer->Wrapped == depthRb); |
||
624 | } |
||
625 | } |
||
626 | else { |
||
627 | /* depthRb may be null */ |
||
628 | _mesa_reference_renderbuffer(&fb->_DepthBuffer, depthRb); |
||
629 | } |
||
630 | } |
||
631 | |||
632 | |||
633 | /** |
||
634 | * Update the framebuffer's _StencilBuffer field using the renderbuffer |
||
635 | * found at the given attachment index. |
||
636 | * |
||
637 | * If that attachment points to a combined GL_DEPTH_STENCIL renderbuffer, |
||
638 | * create and install a stencil wrapper/adaptor. |
||
639 | * |
||
640 | * \param fb the framebuffer whose _StencilBuffer field to update |
||
641 | * \param attIndex indicates the renderbuffer to possibly wrap |
||
642 | */ |
||
643 | void |
||
644 | _mesa_update_stencil_buffer(struct gl_context *ctx, |
||
645 | struct gl_framebuffer *fb, |
||
646 | GLuint attIndex) |
||
647 | { |
||
648 | struct gl_renderbuffer *stencilRb; |
||
649 | |||
650 | ASSERT(attIndex == BUFFER_DEPTH || |
||
651 | attIndex == BUFFER_STENCIL); |
||
652 | |||
653 | stencilRb = fb->Attachment[attIndex].Renderbuffer; |
||
654 | |||
655 | if (stencilRb && _mesa_is_format_packed_depth_stencil(stencilRb->Format)) { |
||
656 | /* The attached stencil buffer is a GL_DEPTH_STENCIL renderbuffer */ |
||
657 | if (!fb->_StencilBuffer |
||
658 | || fb->_StencilBuffer->Wrapped != stencilRb |
||
659 | || _mesa_get_format_base_format(fb->_StencilBuffer->Format) != GL_STENCIL_INDEX) { |
||
660 | /* need to update wrapper */ |
||
661 | struct gl_renderbuffer *wrapper |
||
662 | = _mesa_new_s8_renderbuffer_wrapper(ctx, stencilRb); |
||
663 | _mesa_reference_renderbuffer(&fb->_StencilBuffer, wrapper); |
||
664 | ASSERT(fb->_StencilBuffer->Wrapped == stencilRb); |
||
665 | } |
||
666 | } |
||
667 | else { |
||
668 | /* stencilRb may be null */ |
||
669 | _mesa_reference_renderbuffer(&fb->_StencilBuffer, stencilRb); |
||
670 | } |
||
671 | } |
||
672 | |||
673 | |||
674 | /* |
||
675 | * Example DrawBuffers scenarios: |
||
676 | * |
||
677 | * 1. glDrawBuffer(GL_FRONT_AND_BACK), fixed-func or shader writes to |
||
678 | * "gl_FragColor" or program writes to the "result.color" register: |
||
679 | * |
||
680 | * fragment color output renderbuffer |
||
681 | * --------------------- --------------- |
||
682 | * color[0] Front, Back |
||
683 | * |
||
684 | * |
||
685 | * 2. glDrawBuffers(3, [GL_FRONT, GL_AUX0, GL_AUX1]), shader writes to |
||
686 | * gl_FragData[i] or program writes to result.color[i] registers: |
||
687 | * |
||
688 | * fragment color output renderbuffer |
||
689 | * --------------------- --------------- |
||
690 | * color[0] Front |
||
691 | * color[1] Aux0 |
||
692 | * color[3] Aux1 |
||
693 | * |
||
694 | * |
||
695 | * 3. glDrawBuffers(3, [GL_FRONT, GL_AUX0, GL_AUX1]) and shader writes to |
||
696 | * gl_FragColor, or fixed function: |
||
697 | * |
||
698 | * fragment color output renderbuffer |
||
699 | * --------------------- --------------- |
||
700 | * color[0] Front, Aux0, Aux1 |
||
701 | * |
||
702 | * |
||
703 | * In either case, the list of renderbuffers is stored in the |
||
704 | * framebuffer->_ColorDrawBuffers[] array and |
||
705 | * framebuffer->_NumColorDrawBuffers indicates the number of buffers. |
||
706 | * The renderer (like swrast) has to look at the current fragment shader |
||
707 | * to see if it writes to gl_FragColor vs. gl_FragData[i] to determine |
||
708 | * how to map color outputs to renderbuffers. |
||
709 | * |
||
710 | * Note that these two calls are equivalent (for fixed function fragment |
||
711 | * shading anyway): |
||
712 | * a) glDrawBuffer(GL_FRONT_AND_BACK); (assuming non-stereo framebuffer) |
||
713 | * b) glDrawBuffers(2, [GL_FRONT_LEFT, GL_BACK_LEFT]); |
||
714 | */ |
||
715 | |||
716 | |||
717 | |||
718 | |||
719 | /** |
||
720 | * Update the (derived) list of color drawing renderbuffer pointers. |
||
721 | * Later, when we're rendering we'll loop from 0 to _NumColorDrawBuffers |
||
722 | * writing colors. |
||
723 | */ |
||
724 | static void |
||
725 | update_color_draw_buffers(struct gl_context *ctx, struct gl_framebuffer *fb) |
||
726 | { |
||
727 | GLuint output; |
||
728 | |||
729 | /* set 0th buffer to NULL now in case _NumColorDrawBuffers is zero */ |
||
730 | fb->_ColorDrawBuffers[0] = NULL; |
||
731 | |||
732 | for (output = 0; output < fb->_NumColorDrawBuffers; output++) { |
||
733 | GLint buf = fb->_ColorDrawBufferIndexes[output]; |
||
734 | if (buf >= 0) { |
||
735 | fb->_ColorDrawBuffers[output] = fb->Attachment[buf].Renderbuffer; |
||
736 | } |
||
737 | else { |
||
738 | fb->_ColorDrawBuffers[output] = NULL; |
||
739 | } |
||
740 | } |
||
741 | } |
||
742 | |||
743 | |||
744 | /** |
||
745 | * Update the (derived) color read renderbuffer pointer. |
||
746 | * Unlike the DrawBuffer, we can only read from one (or zero) color buffers. |
||
747 | */ |
||
748 | static void |
||
749 | update_color_read_buffer(struct gl_context *ctx, struct gl_framebuffer *fb) |
||
750 | { |
||
751 | (void) ctx; |
||
752 | if (fb->_ColorReadBufferIndex == -1 || |
||
753 | fb->DeletePending || |
||
754 | fb->Width == 0 || |
||
755 | fb->Height == 0) { |
||
756 | fb->_ColorReadBuffer = NULL; /* legal! */ |
||
757 | } |
||
758 | else { |
||
759 | ASSERT(fb->_ColorReadBufferIndex >= 0); |
||
760 | ASSERT(fb->_ColorReadBufferIndex < BUFFER_COUNT); |
||
761 | fb->_ColorReadBuffer |
||
762 | = fb->Attachment[fb->_ColorReadBufferIndex].Renderbuffer; |
||
763 | } |
||
764 | } |
||
765 | |||
766 | |||
767 | /** |
||
768 | * Update a gl_framebuffer's derived state. |
||
769 | * |
||
770 | * Specifically, update these framebuffer fields: |
||
771 | * _ColorDrawBuffers |
||
772 | * _NumColorDrawBuffers |
||
773 | * _ColorReadBuffer |
||
774 | * _DepthBuffer |
||
775 | * _StencilBuffer |
||
776 | * |
||
777 | * If the framebuffer is user-created, make sure it's complete. |
||
778 | * |
||
779 | * The following functions (at least) can effect framebuffer state: |
||
780 | * glReadBuffer, glDrawBuffer, glDrawBuffersARB, glFramebufferRenderbufferEXT, |
||
781 | * glRenderbufferStorageEXT. |
||
782 | */ |
||
783 | static void |
||
784 | update_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) |
||
785 | { |
||
786 | if (fb->Name == 0) { |
||
787 | /* This is a window-system framebuffer */ |
||
788 | /* Need to update the FB's GL_DRAW_BUFFER state to match the |
||
789 | * context state (GL_READ_BUFFER too). |
||
790 | */ |
||
791 | if (fb->ColorDrawBuffer[0] != ctx->Color.DrawBuffer[0]) { |
||
792 | _mesa_drawbuffers(ctx, ctx->Const.MaxDrawBuffers, |
||
793 | ctx->Color.DrawBuffer, NULL); |
||
794 | } |
||
795 | if (fb->ColorReadBuffer != ctx->Pixel.ReadBuffer) { |
||
796 | |||
797 | } |
||
798 | } |
||
799 | else { |
||
800 | /* This is a user-created framebuffer. |
||
801 | * Completeness only matters for user-created framebuffers. |
||
802 | */ |
||
803 | if (fb->_Status != GL_FRAMEBUFFER_COMPLETE) { |
||
804 | _mesa_test_framebuffer_completeness(ctx, fb); |
||
805 | } |
||
806 | } |
||
807 | |||
808 | /* Strictly speaking, we don't need to update the draw-state |
||
809 | * if this FB is bound as ctx->ReadBuffer (and conversely, the |
||
810 | * read-state if this FB is bound as ctx->DrawBuffer), but no |
||
811 | * harm. |
||
812 | */ |
||
813 | update_color_draw_buffers(ctx, fb); |
||
814 | update_color_read_buffer(ctx, fb); |
||
815 | _mesa_update_depth_buffer(ctx, fb, BUFFER_DEPTH); |
||
816 | _mesa_update_stencil_buffer(ctx, fb, BUFFER_STENCIL); |
||
817 | |||
818 | compute_depth_max(fb); |
||
819 | } |
||
820 | |||
821 | |||
822 | /** |
||
823 | * Update state related to the current draw/read framebuffers. |
||
824 | */ |
||
825 | void |
||
826 | _mesa_update_framebuffer(struct gl_context *ctx) |
||
827 | { |
||
828 | struct gl_framebuffer *drawFb; |
||
829 | struct gl_framebuffer *readFb; |
||
830 | |||
831 | assert(ctx); |
||
832 | drawFb = ctx->DrawBuffer; |
||
833 | readFb = ctx->ReadBuffer; |
||
834 | |||
835 | update_framebuffer(ctx, drawFb); |
||
836 | if (readFb != drawFb) |
||
837 | update_framebuffer(ctx, readFb); |
||
838 | } |
||
839 | |||
840 | |||
841 | /** |
||
842 | * Check if the renderbuffer for a read operation (glReadPixels, glCopyPixels, |
||
843 | * glCopyTex[Sub]Image, etc) exists. |
||
844 | * \param format a basic image format such as GL_RGB, GL_RGBA, GL_ALPHA, |
||
845 | * GL_DEPTH_COMPONENT, etc. or GL_COLOR, GL_DEPTH, GL_STENCIL. |
||
846 | * \return GL_TRUE if buffer exists, GL_FALSE otherwise |
||
847 | */ |
||
848 | GLboolean |
||
849 | _mesa_source_buffer_exists(struct gl_context *ctx, GLenum format) |
||
850 | { |
||
851 | const struct gl_renderbuffer_attachment *att = ctx->ReadBuffer->Attachment; |
||
852 | |||
853 | /* If we don't know the framebuffer status, update it now */ |
||
854 | if (ctx->ReadBuffer->_Status == 0) { |
||
855 | _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); |
||
856 | } |
||
857 | |||
858 | if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { |
||
859 | return GL_FALSE; |
||
860 | } |
||
861 | |||
862 | switch (format) { |
||
863 | case GL_COLOR: |
||
864 | case GL_RED: |
||
865 | case GL_GREEN: |
||
866 | case GL_BLUE: |
||
867 | case GL_ALPHA: |
||
868 | case GL_LUMINANCE: |
||
869 | case GL_LUMINANCE_ALPHA: |
||
870 | case GL_INTENSITY: |
||
871 | case GL_RG: |
||
872 | case GL_RGB: |
||
873 | case GL_BGR: |
||
874 | case GL_RGBA: |
||
875 | case GL_BGRA: |
||
876 | case GL_ABGR_EXT: |
||
877 | case GL_COLOR_INDEX: |
||
878 | case GL_RED_INTEGER_EXT: |
||
879 | case GL_GREEN_INTEGER_EXT: |
||
880 | case GL_BLUE_INTEGER_EXT: |
||
881 | case GL_ALPHA_INTEGER_EXT: |
||
882 | case GL_RGB_INTEGER_EXT: |
||
883 | case GL_RGBA_INTEGER_EXT: |
||
884 | case GL_BGR_INTEGER_EXT: |
||
885 | case GL_BGRA_INTEGER_EXT: |
||
886 | case GL_LUMINANCE_INTEGER_EXT: |
||
887 | case GL_LUMINANCE_ALPHA_INTEGER_EXT: |
||
888 | if (ctx->ReadBuffer->_ColorReadBuffer == NULL) { |
||
889 | return GL_FALSE; |
||
890 | } |
||
891 | ASSERT(_mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_RED_BITS) > 0 || |
||
892 | _mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_ALPHA_BITS) > 0 || |
||
893 | _mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_INDEX_BITS) > 0); |
||
894 | break; |
||
895 | case GL_DEPTH: |
||
896 | case GL_DEPTH_COMPONENT: |
||
897 | if (!att[BUFFER_DEPTH].Renderbuffer) { |
||
898 | return GL_FALSE; |
||
899 | } |
||
900 | /*ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0);*/ |
||
901 | break; |
||
902 | case GL_STENCIL: |
||
903 | case GL_STENCIL_INDEX: |
||
904 | if (!att[BUFFER_STENCIL].Renderbuffer) { |
||
905 | return GL_FALSE; |
||
906 | } |
||
907 | /*ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0);*/ |
||
908 | break; |
||
909 | case GL_DEPTH_STENCIL_EXT: |
||
910 | if (!att[BUFFER_DEPTH].Renderbuffer || |
||
911 | !att[BUFFER_STENCIL].Renderbuffer) { |
||
912 | return GL_FALSE; |
||
913 | } |
||
914 | /* |
||
915 | ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0); |
||
916 | ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0); |
||
917 | */ |
||
918 | break; |
||
919 | default: |
||
920 | _mesa_problem(ctx, |
||
921 | "Unexpected format 0x%x in _mesa_source_buffer_exists", |
||
922 | format); |
||
923 | return GL_FALSE; |
||
924 | } |
||
925 | |||
926 | /* OK */ |
||
927 | return GL_TRUE; |
||
928 | } |
||
929 | |||
930 | |||
931 | /** |
||
932 | * As above, but for drawing operations. |
||
933 | * XXX could do some code merging w/ above function. |
||
934 | */ |
||
935 | GLboolean |
||
936 | _mesa_dest_buffer_exists(struct gl_context *ctx, GLenum format) |
||
937 | { |
||
938 | const struct gl_renderbuffer_attachment *att = ctx->DrawBuffer->Attachment; |
||
939 | |||
940 | /* If we don't know the framebuffer status, update it now */ |
||
941 | if (ctx->DrawBuffer->_Status == 0) { |
||
942 | _mesa_test_framebuffer_completeness(ctx, ctx->DrawBuffer); |
||
943 | } |
||
944 | |||
945 | if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { |
||
946 | return GL_FALSE; |
||
947 | } |
||
948 | |||
949 | switch (format) { |
||
950 | case GL_COLOR: |
||
951 | case GL_RED: |
||
952 | case GL_GREEN: |
||
953 | case GL_BLUE: |
||
954 | case GL_ALPHA: |
||
955 | case GL_LUMINANCE: |
||
956 | case GL_LUMINANCE_ALPHA: |
||
957 | case GL_INTENSITY: |
||
958 | case GL_RGB: |
||
959 | case GL_BGR: |
||
960 | case GL_RGBA: |
||
961 | case GL_BGRA: |
||
962 | case GL_ABGR_EXT: |
||
963 | case GL_COLOR_INDEX: |
||
964 | case GL_RED_INTEGER_EXT: |
||
965 | case GL_GREEN_INTEGER_EXT: |
||
966 | case GL_BLUE_INTEGER_EXT: |
||
967 | case GL_ALPHA_INTEGER_EXT: |
||
968 | case GL_RGB_INTEGER_EXT: |
||
969 | case GL_RGBA_INTEGER_EXT: |
||
970 | case GL_BGR_INTEGER_EXT: |
||
971 | case GL_BGRA_INTEGER_EXT: |
||
972 | case GL_LUMINANCE_INTEGER_EXT: |
||
973 | case GL_LUMINANCE_ALPHA_INTEGER_EXT: |
||
974 | /* Nothing special since GL_DRAW_BUFFER could be GL_NONE. */ |
||
975 | /* Could assert that colorbuffer has RedBits > 0 */ |
||
976 | break; |
||
977 | case GL_DEPTH: |
||
978 | case GL_DEPTH_COMPONENT: |
||
979 | if (!att[BUFFER_DEPTH].Renderbuffer) { |
||
980 | return GL_FALSE; |
||
981 | } |
||
982 | /*ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0);*/ |
||
983 | break; |
||
984 | case GL_STENCIL: |
||
985 | case GL_STENCIL_INDEX: |
||
986 | if (!att[BUFFER_STENCIL].Renderbuffer) { |
||
987 | return GL_FALSE; |
||
988 | } |
||
989 | /*ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0);*/ |
||
990 | break; |
||
991 | case GL_DEPTH_STENCIL_EXT: |
||
992 | if (!att[BUFFER_DEPTH].Renderbuffer || |
||
993 | !att[BUFFER_STENCIL].Renderbuffer) { |
||
994 | return GL_FALSE; |
||
995 | } |
||
996 | /* |
||
997 | ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0); |
||
998 | ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0); |
||
999 | */ |
||
1000 | break; |
||
1001 | default: |
||
1002 | _mesa_problem(ctx, |
||
1003 | "Unexpected format 0x%x in _mesa_dest_buffer_exists", |
||
1004 | format); |
||
1005 | return GL_FALSE; |
||
1006 | } |
||
1007 | |||
1008 | /* OK */ |
||
1009 | return GL_TRUE; |
||
1010 | } |
||
1011 | |||
1012 | |||
1013 | /** |
||
1014 | * Used to answer the GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES query. |
||
1015 | */ |
||
1016 | GLenum |
||
1017 | _mesa_get_color_read_format(struct gl_context *ctx) |
||
1018 | { |
||
1019 | switch (ctx->ReadBuffer->_ColorReadBuffer->Format) { |
||
1020 | case MESA_FORMAT_ARGB8888: |
||
1021 | return GL_BGRA; |
||
1022 | case MESA_FORMAT_RGB565: |
||
1023 | return GL_BGR; |
||
1024 | default: |
||
1025 | return GL_RGBA; |
||
1026 | } |
||
1027 | } |
||
1028 | |||
1029 | |||
1030 | /** |
||
1031 | * Used to answer the GL_IMPLEMENTATION_COLOR_READ_TYPE_OES query. |
||
1032 | */ |
||
1033 | GLenum |
||
1034 | _mesa_get_color_read_type(struct gl_context *ctx) |
||
1035 | { |
||
1036 | switch (ctx->ReadBuffer->_ColorReadBuffer->Format) { |
||
1037 | case MESA_FORMAT_ARGB8888: |
||
1038 | return GL_UNSIGNED_BYTE; |
||
1039 | case MESA_FORMAT_RGB565: |
||
1040 | return GL_UNSIGNED_SHORT_5_6_5_REV; |
||
1041 | default: |
||
1042 | return GL_UNSIGNED_BYTE; |
||
1043 | } |
||
1044 | } |
||
1045 | |||
1046 | |||
1047 | /** |
||
1048 | * Print framebuffer info to stderr, for debugging. |
||
1049 | */ |
||
1050 | void |
||
1051 | _mesa_print_framebuffer(const struct gl_framebuffer *fb) |
||
1052 | { |
||
1053 | GLuint i; |
||
1054 | |||
1055 | fprintf(stderr, "Mesa Framebuffer %u at %p\n", fb->Name, (void *) fb); |
||
1056 | fprintf(stderr, " Size: %u x %u Status: %s\n", fb->Width, fb->Height, |
||
1057 | _mesa_lookup_enum_by_nr(fb->_Status)); |
||
1058 | fprintf(stderr, " Attachments:\n"); |
||
1059 | |||
1060 | for (i = 0; i < BUFFER_COUNT; i++) { |
||
1061 | const struct gl_renderbuffer_attachment *att = &fb->Attachment[i]; |
||
1062 | if (att->Type == GL_TEXTURE) { |
||
1063 | const struct gl_texture_image *texImage; |
||
1064 | fprintf(stderr, |
||
1065 | " %2d: Texture %u, level %u, face %u, slice %u, complete %d\n", |
||
1066 | i, att->Texture->Name, att->TextureLevel, att->CubeMapFace, |
||
1067 | att->Zoffset, att->Complete); |
||
1068 | texImage = att->Texture->Image[att->CubeMapFace][att->TextureLevel]; |
||
1069 | fprintf(stderr, " Size: %u x %u x %u Format %s\n", |
||
1070 | texImage->Width, texImage->Height, texImage->Depth, |
||
1071 | _mesa_get_format_name(texImage->TexFormat)); |
||
1072 | } |
||
1073 | else if (att->Type == GL_RENDERBUFFER) { |
||
1074 | fprintf(stderr, " %2d: Renderbuffer %u, complete %d\n", |
||
1075 | i, att->Renderbuffer->Name, att->Complete); |
||
1076 | fprintf(stderr, " Size: %u x %u Format %s\n", |
||
1077 | att->Renderbuffer->Width, att->Renderbuffer->Height, |
||
1078 | _mesa_get_format_name(att->Renderbuffer->Format)); |
||
1079 | } |
||
1080 | else { |
||
1081 | fprintf(stderr, " %2d: none\n", i); |
||
1082 | } |
||
1083 | } |
||
1084 | }>>>>=>=>>>>>>><>>><> |