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comparison: gfx/angle/extensions/EGL_ANGLE_d3d_share_handle_client_buffer.txt
gfx/angle/extensions/EGL_ANGLE_d3d_share_handle_client_buffer.txt
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- TOR_BUG_9701
- changeset 15
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| -1:000000000000 | 0:56a11b5027e4 |
|---|---|
| 1 Name | |
| 2 | |
| 3 ANGLE_d3d_share_handle_client_buffer | |
| 4 | |
| 5 Name Strings | |
| 6 | |
| 7 EGL_ANGLE_d3d_share_handle_client_buffer | |
| 8 | |
| 9 Contributors | |
| 10 | |
| 11 John Bauman | |
| 12 Alastair Patrick | |
| 13 Daniel Koch | |
| 14 | |
| 15 Contacts | |
| 16 | |
| 17 John Bauman, Google Inc. (jbauman 'at' chromium.org) | |
| 18 | |
| 19 Status | |
| 20 | |
| 21 Complete | |
| 22 Implemented (ANGLE r650) | |
| 23 | |
| 24 Version | |
| 25 | |
| 26 Version 3, May 12, 2011 | |
| 27 | |
| 28 Number | |
| 29 | |
| 30 EGL Extension #?? | |
| 31 | |
| 32 Dependencies | |
| 33 | |
| 34 Requires the EGL_ANGLE_surface_d3d_texture_2d_share_handle extension. | |
| 35 | |
| 36 This extension is written against the wording of the EGL 1.4 | |
| 37 Specification. | |
| 38 | |
| 39 Overview | |
| 40 | |
| 41 This extension allows creating EGL surfaces from handles to textures | |
| 42 shared from the Direct3D API or from | |
| 43 EGL_ANGLE_surface_texture_2d_share_handle. | |
| 44 | |
| 45 New Types | |
| 46 | |
| 47 None | |
| 48 | |
| 49 New Procedures and Functions | |
| 50 | |
| 51 None | |
| 52 | |
| 53 New Tokens | |
| 54 | |
| 55 Accepted in the <buftype> parameter of eglCreatePbufferFromClientBuffer: | |
| 56 | |
| 57 EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE 0x3200 | |
| 58 | |
| 59 Additions to Chapter 3 of the EGL 1.4 Specification (EGL Functions and Errors) | |
| 60 | |
| 61 Replace the last sentence of paragraph 1 of Section 3.5.3 with the | |
| 62 following text. | |
| 63 "Currently, the only client API resources which may be bound in this | |
| 64 fashion are OpenVG VGImage objects and Direct3D share handles." | |
| 65 | |
| 66 Replace the last sentence of paragraph 2 ("To bind a client API...") of | |
| 67 Section 3.5.3 with the following text. | |
| 68 "When <buftype> is EGL_OPENVG_IMAGE, the width and height of the pbuffer | |
| 69 are determined by the width and height of <buffer>. When <buftype> is | |
| 70 EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE, the width and height are specified | |
| 71 using EGL_WIDTH and EGL_HEIGHT, or else they default to zero. The width | |
| 72 and height must match the dimensions of the texture which the share handle | |
| 73 was created from or else an EGL_BAD_ALLOC error is generated." | |
| 74 | |
| 75 Replace the third paragraph of Section 3.5.3 with the following text. | |
| 76 "<buftype> specifies the type of buffer to be bound. The only allowed values | |
| 77 of <buftype> are EGL_OPENVG_IMAGE and | |
| 78 EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE". | |
| 79 | |
| 80 Append the following text to the fourth paragraph of Section 3.5.3. | |
| 81 "When <buftype> is EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE, <buffer> must be | |
| 82 a valid D3D share handle, cast into the type EGLClientBuffer. The handle | |
| 83 may be obtained from the Direct3D9Ex CreateTexture function, from DXGI's | |
| 84 GetSharedHandle method on an ID3D10Texture2D, or from the | |
| 85 EGL_ANGLE_surface_d3d_texture_2d_share_handle extension." | |
| 86 | |
| 87 Issues | |
| 88 | |
| 89 Revision History | |
| 90 | |
| 91 Version 3, 2011/05/12 | |
| 92 - publish | |
| 93 | |
| 94 Version 2, 2011/05/03 | |
| 95 - specify EGL_D3D_TEXTURE_2D_SHARE_HANDLE | |
| 96 - specify error if dimensions don't match | |
| 97 | |
| 98 Version 1, 2011/04/12 - first draft. |
