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5362 | serge | 1 | /* |
2 | * Copyright (c) 2012 Intel Corporation. All Rights Reserved. |
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3 | * |
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4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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5 | * copy of this software and associated documentation files (the |
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6 | * "Software"), to deal in the Software without restriction, including |
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7 | * without limitation the rights to use, copy, modify, merge, publish, |
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8 | * distribute, sub license, and/or sell copies of the Software, and to |
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9 | * permit persons to whom the Software is furnished to do so, subject to |
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10 | * the following conditions: |
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11 | * |
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12 | * The above copyright notice and this permission notice (including the |
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13 | * next paragraph) shall be included in all copies or substantial portions |
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14 | * 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 |
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17 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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19 | * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR |
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20 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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21 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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22 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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23 | */ |
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24 | #include |
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25 | #include |
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26 | #include |
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27 | #include |
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28 | |||
29 | #include |
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30 | |||
31 | #include |
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32 | #include |
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33 | #include "va.h" |
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34 | #include "va_backend.h" |
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35 | |||
36 | #include "va_dri2.h" |
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37 | #include "va_dri2tokens.h" |
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38 | #include "va_dricommon.h" |
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39 | |||
40 | #define __DRI_BUFFER_FRONT_LEFT 0 |
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41 | #define __DRI_BUFFER_BACK_LEFT 1 |
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42 | #define __DRI_BUFFER_FRONT_RIGHT 2 |
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43 | #define __DRI_BUFFER_BACK_RIGHT 3 |
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44 | #define __DRI_BUFFER_DEPTH 4 |
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45 | #define __DRI_BUFFER_STENCIL 5 |
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46 | #define __DRI_BUFFER_ACCUM 6 |
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47 | #define __DRI_BUFFER_FAKE_FRONT_LEFT 7 |
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48 | #define __DRI_BUFFER_FAKE_FRONT_RIGHT 8 |
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49 | |||
50 | struct dri2_drawable |
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51 | { |
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52 | struct dri_drawable base; |
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53 | union dri_buffer buffers[5]; |
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54 | int width; |
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55 | int height; |
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56 | int has_backbuffer; |
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57 | int back_index; |
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58 | int front_index; |
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59 | }; |
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60 | |||
61 | static int gsDRI2SwapAvailable; |
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62 | |||
63 | static struct dri_drawable * |
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64 | dri2CreateDrawable(VADriverContextP ctx, XID x_drawable) |
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65 | { |
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66 | struct dri2_drawable *dri2_drawable; |
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67 | |||
68 | dri2_drawable = calloc(1, sizeof(*dri2_drawable)); |
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69 | |||
70 | if (!dri2_drawable) |
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71 | return NULL; |
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72 | |||
73 | dri2_drawable->base.x_drawable = x_drawable; |
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74 | dri2_drawable->base.x = 0; |
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75 | dri2_drawable->base.y = 0; |
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76 | VA_DRI2CreateDrawable(ctx->native_dpy, x_drawable); |
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77 | |||
78 | return &dri2_drawable->base; |
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79 | } |
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80 | |||
81 | static void |
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82 | dri2DestroyDrawable(VADriverContextP ctx, struct dri_drawable *dri_drawable) |
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83 | { |
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84 | VA_DRI2DestroyDrawable(ctx->native_dpy, dri_drawable->x_drawable); |
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85 | free(dri_drawable); |
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86 | } |
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87 | |||
88 | static void |
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89 | dri2SwapBuffer(VADriverContextP ctx, struct dri_drawable *dri_drawable) |
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90 | { |
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91 | struct dri2_drawable *dri2_drawable = (struct dri2_drawable *)dri_drawable; |
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92 | XRectangle xrect; |
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93 | XserverRegion region; |
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94 | |||
95 | if (dri2_drawable->has_backbuffer) { |
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96 | if (gsDRI2SwapAvailable) { |
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97 | CARD64 ret; |
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98 | VA_DRI2SwapBuffers(ctx->native_dpy, dri_drawable->x_drawable, 0, 0, |
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99 | 0, &ret); |
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100 | } else { |
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101 | xrect.x = 0; |
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102 | xrect.y = 0; |
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103 | xrect.width = dri2_drawable->width; |
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104 | xrect.height = dri2_drawable->height; |
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105 | |||
106 | region = XFixesCreateRegion(ctx->native_dpy, &xrect, 1); |
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107 | VA_DRI2CopyRegion(ctx->native_dpy, dri_drawable->x_drawable, region, |
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108 | DRI2BufferFrontLeft, DRI2BufferBackLeft); |
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109 | XFixesDestroyRegion(ctx->native_dpy, region); |
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110 | } |
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111 | } |
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112 | } |
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113 | |||
114 | static union dri_buffer * |
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115 | dri2GetRenderingBuffer(VADriverContextP ctx, struct dri_drawable *dri_drawable) |
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116 | { |
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117 | struct dri2_drawable *dri2_drawable = (struct dri2_drawable *)dri_drawable; |
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118 | int i; |
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119 | int count; |
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120 | unsigned int attachments[5]; |
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121 | VA_DRI2Buffer *buffers; |
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122 | |||
123 | i = 0; |
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124 | if (dri_drawable->is_window) |
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125 | attachments[i++] = __DRI_BUFFER_BACK_LEFT; |
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126 | else |
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127 | attachments[i++] = __DRI_BUFFER_FRONT_LEFT; |
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128 | |||
129 | buffers = VA_DRI2GetBuffers(ctx->native_dpy, dri_drawable->x_drawable, |
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130 | &dri2_drawable->width, &dri2_drawable->height, |
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131 | attachments, i, &count); |
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132 | assert(buffers); |
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133 | if (buffers == NULL) |
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134 | return NULL; |
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135 | |||
136 | dri2_drawable->has_backbuffer = 0; |
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137 | |||
138 | for (i = 0; i < count; i++) { |
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139 | dri2_drawable->buffers[i].dri2.attachment = buffers[i].attachment; |
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140 | dri2_drawable->buffers[i].dri2.name = buffers[i].name; |
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141 | dri2_drawable->buffers[i].dri2.pitch = buffers[i].pitch; |
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142 | dri2_drawable->buffers[i].dri2.cpp = buffers[i].cpp; |
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143 | dri2_drawable->buffers[i].dri2.flags = buffers[i].flags; |
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144 | |||
145 | if (buffers[i].attachment == __DRI_BUFFER_BACK_LEFT) { |
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146 | dri2_drawable->has_backbuffer = 1; |
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147 | dri2_drawable->back_index = i; |
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148 | } |
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149 | |||
150 | if (buffers[i].attachment == __DRI_BUFFER_FRONT_LEFT) |
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151 | dri2_drawable->front_index = i; |
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152 | } |
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153 | |||
154 | dri_drawable->width = dri2_drawable->width; |
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155 | dri_drawable->height = dri2_drawable->height; |
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156 | Xfree(buffers); |
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157 | |||
158 | if (dri2_drawable->has_backbuffer) |
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159 | return &dri2_drawable->buffers[dri2_drawable->back_index]; |
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160 | |||
161 | return &dri2_drawable->buffers[dri2_drawable->front_index]; |
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162 | } |
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163 | |||
164 | void |
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165 | dri2Close(VADriverContextP ctx) |
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166 | { |
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167 | struct dri_state *dri_state = (struct dri_state *)ctx->drm_state; |
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168 | |||
169 | free_drawable_hashtable(ctx); |
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170 | |||
171 | if (dri_state->base.fd >= 0); |
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172 | close(dri_state->base.fd); |
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173 | } |
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174 | |||
175 | Bool |
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176 | isDRI2Connected(VADriverContextP ctx, char **driver_name) |
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177 | { |
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178 | struct dri_state *dri_state = (struct dri_state *)ctx->drm_state; |
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179 | int major, minor; |
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180 | int error_base; |
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181 | int event_base; |
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182 | char *device_name = NULL; |
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183 | drm_magic_t magic; |
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184 | *driver_name = NULL; |
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185 | dri_state->base.fd = -1; |
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186 | dri_state->base.auth_type = VA_NONE; |
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187 | if (!VA_DRI2QueryExtension(ctx->native_dpy, &event_base, &error_base)) |
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188 | goto err_out; |
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189 | |||
190 | if (!VA_DRI2QueryVersion(ctx->native_dpy, &major, &minor)) |
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191 | goto err_out; |
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192 | |||
193 | |||
194 | if (!VA_DRI2Connect(ctx->native_dpy, RootWindow(ctx->native_dpy, ctx->x11_screen), |
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195 | driver_name, &device_name)) |
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196 | goto err_out; |
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197 | |||
198 | dri_state->base.fd = open(device_name, O_RDWR); |
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199 | assert(dri_state->base.fd >= 0); |
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200 | |||
201 | if (dri_state->base.fd < 0) |
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202 | goto err_out; |
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203 | |||
204 | if (drmGetMagic(dri_state->base.fd, &magic)) |
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205 | goto err_out; |
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206 | |||
207 | if (!VA_DRI2Authenticate(ctx->native_dpy, RootWindow(ctx->native_dpy, ctx->x11_screen), |
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208 | magic)) |
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209 | goto err_out; |
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210 | |||
211 | dri_state->base.auth_type = VA_DRI2; |
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212 | dri_state->createDrawable = dri2CreateDrawable; |
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213 | dri_state->destroyDrawable = dri2DestroyDrawable; |
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214 | dri_state->swapBuffer = dri2SwapBuffer; |
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215 | dri_state->getRenderingBuffer = dri2GetRenderingBuffer; |
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216 | dri_state->close = dri2Close; |
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217 | gsDRI2SwapAvailable = (minor >= 2); |
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218 | |||
219 | if (device_name) |
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220 | Xfree(device_name); |
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221 | |||
222 | return True; |
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223 | |||
224 | err_out: |
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225 | if (device_name) |
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226 | Xfree(device_name); |
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227 | |||
228 | if (*driver_name) |
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229 | Xfree(*driver_name); |
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230 | |||
231 | if (dri_state->base.fd >= 0) |
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232 | close(dri_state->base.fd); |
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233 | |||
234 | *driver_name = NULL; |
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235 | dri_state->base.fd = -1; |
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236 | |||
237 | return False; |
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238 | }>> |
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239 |