1 /* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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2 * |
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3 * Permission is hereby granted, free of charge, to any person obtaining a |
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4 * copy of this software and associated documentation files (the "Software"), |
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5 * to deal in the Software without restriction, including without limitation |
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6 * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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7 * and/or sell copies of the Software, and to permit persons to whom the |
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8 * Software is furnished to do so, subject to the following conditions: |
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9 * |
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10 * The above copyright notice and this permission notice shall be included |
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11 * in all copies or substantial portions of the Software. |
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12 * |
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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14 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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16 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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17 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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18 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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19 * |
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20 * Initial Contributors: |
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21 * Nokia Corporation - initial contribution. |
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22 * |
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23 * Contributors: |
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24 * |
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25 * Description: |
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26 * |
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27 */ |
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28 |
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29 #include "common.h" |
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30 #include "hgl.h" |
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31 #include "context.h" |
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32 |
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33 DGLBuffer* DGLBuffer_create(GLuint name) |
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34 { |
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35 DGLBuffer* buffer = malloc(sizeof(DGLBuffer)); |
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36 if(buffer == NULL) |
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37 { |
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38 return NULL; |
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39 } |
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40 |
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41 buffer->obj.name = name; |
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42 buffer->obj.next = NULL; |
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43 |
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44 buffer->data = NULL; |
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45 buffer->size = 0; |
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46 buffer->usage = GL_STATIC_DRAW; |
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47 |
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48 return buffer; |
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49 } |
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50 |
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51 void DGLBuffer_destroy(DGLBuffer *buffer) |
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52 { |
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53 DGLES2_ASSERT(buffer != NULL); |
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54 if(buffer->data != NULL) |
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55 { |
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56 free(buffer->data); |
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57 buffer->data = NULL; |
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58 } |
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59 free(buffer); |
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60 } |
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61 |
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62 GL_APICALL_BUILD void GL_APIENTRY glBindBuffer(GLenum target, GLuint buffer) |
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63 { |
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64 DGLES2_ENTER(); |
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65 |
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66 DGLContext_getHostError(ctx); |
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67 |
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68 // The buffers are stored in both the wrapper and host. |
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69 ctx->hgl.BindBuffer(target, buffer); |
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70 |
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71 if(DGLContext_getHostError(ctx) == GL_NO_ERROR) |
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72 { |
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73 if(target == GL_ARRAY_BUFFER) |
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74 { |
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75 if(!DGLContext_bindBuffer(ctx, buffer)) |
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76 { |
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77 DGLES2_ERROR(GL_OUT_OF_MEMORY); |
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78 } |
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79 } |
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80 else |
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81 { |
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82 DGLES2_ERROR_IF(target != GL_ELEMENT_ARRAY_BUFFER, GL_INVALID_ENUM); |
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83 } |
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84 } |
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85 |
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86 DGLES2_LEAVE(); |
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87 } |
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88 |
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89 GL_APICALL_BUILD void GL_APIENTRY glBufferData(GLenum target, GLsizeiptr size, const void* data, GLenum usage) |
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90 { |
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91 DGLES2_ENTER(); |
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92 DGLES2_ERROR_IF(size < 0, GL_INVALID_VALUE); |
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93 DGLES2_ERROR_IF(usage != GL_STATIC_DRAW && usage != GL_DYNAMIC_DRAW && usage != GL_STREAM_DRAW, GL_INVALID_ENUM); |
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94 |
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95 DGLContext_getHostError(ctx); |
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96 |
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97 // The buffers are stored in both the wrapper and host. |
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98 ctx->hgl.BufferData(target, size, data, usage); |
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99 |
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100 if(DGLContext_getHostError(ctx) == GL_NO_ERROR) |
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101 { |
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102 if(target == GL_ARRAY_BUFFER) |
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103 { |
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104 DGLBuffer* buffer; |
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105 |
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106 DGLES2_ERROR_IF(ctx->buffer_binding == 0, GL_INVALID_OPERATION); |
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107 |
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108 buffer = DGLContext_findBuffer(ctx, ctx->buffer_binding); |
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109 DGLES2_ASSERT(buffer != NULL); |
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110 |
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111 if(buffer->data != NULL) |
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112 { |
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113 // Delete old data. |
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114 free(buffer->data); |
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115 } |
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116 |
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117 buffer->data = malloc(size); |
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118 if(buffer->data == NULL) |
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119 { |
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120 DGLES2_ERROR(GL_OUT_OF_MEMORY); |
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121 } |
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122 |
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123 if(data != NULL) |
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124 { |
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125 // Copy new data. |
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126 memcpy(buffer->data, data, size); |
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127 } |
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128 |
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129 buffer->size = size; |
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130 buffer->usage = usage; |
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131 } |
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132 else |
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133 { |
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134 DGLES2_ERROR_IF(target != GL_ELEMENT_ARRAY_BUFFER, GL_INVALID_ENUM); |
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135 } |
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136 } |
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137 |
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138 DGLES2_LEAVE(); |
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139 } |
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140 |
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141 GL_APICALL_BUILD void GL_APIENTRY glBufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, const void* data) |
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142 { |
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143 DGLES2_ENTER(); |
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144 DGLES2_ERROR_IF(offset < 0, GL_INVALID_VALUE); |
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145 DGLES2_ERROR_IF(size < 0, GL_INVALID_VALUE); |
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146 |
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147 DGLContext_getHostError(ctx); |
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148 |
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149 // The buffers are stored in both the wrapper and host. |
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150 ctx->hgl.BufferSubData(target, offset, size, data); |
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151 |
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152 if(DGLContext_getHostError(ctx) == GL_NO_ERROR) |
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153 { |
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154 if(target == GL_ARRAY_BUFFER) |
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155 { |
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156 DGLBuffer* buffer; |
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157 |
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158 DGLES2_ERROR_IF(target != GL_ARRAY_BUFFER, GL_INVALID_ENUM); |
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159 DGLES2_ERROR_IF(ctx->buffer_binding == 0, GL_INVALID_OPERATION); |
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160 |
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161 buffer = DGLContext_findBuffer(ctx, ctx->buffer_binding); |
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162 DGLES2_ASSERT(buffer != NULL); |
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163 |
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164 memcpy((char*)buffer->data + offset, data, size); |
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165 } |
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166 else |
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167 { |
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168 DGLES2_ERROR_IF(target != GL_ELEMENT_ARRAY_BUFFER, GL_INVALID_ENUM); |
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169 } |
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170 } |
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171 |
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172 DGLES2_LEAVE(); |
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173 } |
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174 |
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175 GL_APICALL_BUILD void GL_APIENTRY glDeleteBuffers(GLsizei n, const GLuint* buffers) |
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176 { |
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177 DGLES2_ENTER(); |
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178 DGLES2_ERROR_IF(n < 0, GL_INVALID_VALUE); |
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179 |
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180 DGLContext_getHostError(ctx); |
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181 |
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182 // The buffers are stored in both the wrapper and host. |
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183 ctx->hgl.DeleteBuffers(n, buffers); |
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184 |
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185 if(DGLContext_getHostError(ctx) == GL_NO_ERROR) |
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186 { |
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187 int i; |
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188 for(i = 0; i < n; i++) |
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189 { |
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190 DGLContext_destroyBuffer(ctx, buffers[i]); |
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191 } |
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192 } |
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193 |
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194 DGLES2_LEAVE(); |
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195 } |
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196 |
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197 |
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198 GL_APICALL_BUILD void GL_APIENTRY glGenBuffers(GLsizei n, GLuint* buffers) |
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199 { |
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200 DGLES2_ENTER(); |
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201 DGLES2_ERROR_IF(n < 0, GL_INVALID_VALUE); |
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202 |
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203 // The buffers are stored in both the wrapper and host. |
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204 // Let the host come up with free buffer names. |
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205 ctx->hgl.GenBuffers(n, buffers); |
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206 |
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207 DGLES2_LEAVE(); |
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208 } |
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209 |
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210 GL_APICALL_BUILD void GL_APIENTRY glGetBufferParameteriv(GLenum target, GLenum pname, GLint* params) |
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211 { |
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212 DGLES2_ENTER(); |
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213 DGLES2_ERROR_IF(pname != GL_BUFFER_USAGE && pname != GL_BUFFER_SIZE, GL_INVALID_ENUM); |
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214 ctx->hgl.GetBufferParameteriv(target, pname, params); |
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215 DGLES2_LEAVE(); |
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216 } |
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217 |
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218 GL_APICALL_BUILD GLboolean GL_APIENTRY glIsBuffer(GLuint buffer) |
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219 { |
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220 DGLES2_ENTER_RET(GL_FALSE); |
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221 DGLES2_LEAVE_RET(ctx->hgl.IsBuffer(buffer)); |
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222 } |
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