CA2558013A1 - Display updates in a windowing system using a programmable graphics processing unit. - Google Patents
Display updates in a windowing system using a programmable graphics processing unit. Download PDFInfo
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- CA2558013A1 CA2558013A1 CA002558013A CA2558013A CA2558013A1 CA 2558013 A1 CA2558013 A1 CA 2558013A1 CA 002558013 A CA002558013 A CA 002558013A CA 2558013 A CA2558013 A CA 2558013A CA 2558013 A1 CA2558013 A1 CA 2558013A1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
- G09G5/39—Control of the bit-mapped memory
- G09G5/393—Arrangements for updating the contents of the bit-mapped memory
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/14—Display of multiple viewports
Abstract
Techniques to effect arbitrary visual effects using fragment programs executing on a programmable graphics processing unit are described. In a first technique (300), visual effects are applied to a buffered window system's assembly buffer prior to compositing a target window. In a second technique (400), visual effects are applied to a target window as it is being composited into the system's assembly buffer. In a third technique (500 and 600), visual effects are applied to a system's assembly buffer after compositing a target window. In a fourth technique (700), visual effects are applied to the system's assembly buffer as it is transmitted to the system's frame-buffer. In a fifth technique (1100 and 1200), arbitrary visual effects are permitted to any one or more windows (e.g., application-specific window buffers) in a manner that updates only a portion of a display.
Claims (35)
1. A method to generate a display-wide visual effect, comprising:
filtering an image buffer's contents using a graphics processing unit to generate a specified visual effect, wherein the image buffer is associated with a system frame buffer; and compositing an application-specific window buffer into the image buffer, wherein the act of compositing is performed by the graphics processing unit after the act of filtering.
filtering an image buffer's contents using a graphics processing unit to generate a specified visual effect, wherein the image buffer is associated with a system frame buffer; and compositing an application-specific window buffer into the image buffer, wherein the act of compositing is performed by the graphics processing unit after the act of filtering.
2. The method of claim 1, wherein the act of filtering comprises:
copying the image buffer's contents into a first buffer; and filtering the first buffer's contents using the graphics processing unit back into the image buffer.
copying the image buffer's contents into a first buffer; and filtering the first buffer's contents using the graphics processing unit back into the image buffer.
3. The method of claim 1, wherein the act of filtering comprises filtering less than all of the image buffer's contents.
4. The method of claim 1, wherein the specified visual effect comprises one or more of the following visual effects: color effects, distortion effects, stylized effects, composition effects, half-tone effects, transition effects, tile effects, gradient effects, sharpen effects and blur effects.
5. The method of claim 1, further comprising transferring contents of the image buffer to the system frame buffer after the act of compositing using the graphics processing unit.
6. A method to generate a display-wide visual effect, comprising:
filtering an application specific window buffer using a graphics processing unit to generate a specified visual effect; and compositing, using a graphics processing unit, the filtered window buffer into an image buffer, said image buffer associated with a system frame buffer.
filtering an application specific window buffer using a graphics processing unit to generate a specified visual effect; and compositing, using a graphics processing unit, the filtered window buffer into an image buffer, said image buffer associated with a system frame buffer.
7. The method of claim 6, wherein the act of filtering comprises filtering less than all of the application specific window buffer's content.
8. The method of claim 6, wherein the specified visual effect comprises one or more of the following visual effects: color effects, distortion effects, stylized effects, composition effects, half-tone effects, transition effects, tile effects, gradient effects, sharpen effects and blur effects.
9. The method of claim 6, wherein the act of filtering comprises:
filtering, into a temporary buffer, the contents of the application specific window buffer and the contents of the image buffer into a temporary buffer substantially simultaneously with a graphics processing unit to generate a specified visual effect; and transferring the contents of the temporary buffer into the image buffer using the graphics processing unit.
filtering, into a temporary buffer, the contents of the application specific window buffer and the contents of the image buffer into a temporary buffer substantially simultaneously with a graphics processing unit to generate a specified visual effect; and transferring the contents of the temporary buffer into the image buffer using the graphics processing unit.
10. The method of claim 9, further comprising transferring contents of the image buffer into the system frame buffer after the act of compositing.
11. A method to generate a display-wide visual effect, comprising:
compositing an application specific window buffer into an image buffer, said image buffer associated with a system frame buffer; and filtering the image buffer using a graphics processing unit to generate a specified visual effect.
compositing an application specific window buffer into an image buffer, said image buffer associated with a system frame buffer; and filtering the image buffer using a graphics processing unit to generate a specified visual effect.
12. The method of claim 11, wherein the act of filtering comprises:
copying the image buffer's contents into a first buffer; and filtering the first buffer's contents using the graphics processing unit back into the image buffer.
copying the image buffer's contents into a first buffer; and filtering the first buffer's contents using the graphics processing unit back into the image buffer.
13. The method of claim 12, wherein the act of filtering comprises filtering less than all of the application specific window buffer's content.
14. The method of claim 12, wherein the specified visual effect comprises one or more of the following visual effects: color effects, distortion effects, stylized effects, composition effects, half-tone effects, transition effects, tile effects, gradient effects, sharpen effects and blur effects.
15. A method to generate a display-wide visual effect, comprising:
filtering an image buffer using a graphics processing unit to generate a specified visual effect; and storing the filtered image buffer into a frame buffer, said frame buffer associated with a display device.
filtering an image buffer using a graphics processing unit to generate a specified visual effect; and storing the filtered image buffer into a frame buffer, said frame buffer associated with a display device.
16. The method of claim 15, wherein the act of filtering is performed in a time less than a scan rate associated with the frame buffer.
17. The method of claim 15, wherein the act of filtering comprises filtering less than all of the image buffer.
18. The method of claim 15, wherein the specified visual effect comprises one or more of the following visual effects: color effects, distortion effects, stylized effects, composition effects, half-tone effects, transition effects, tile effects, gradient effects, sharpen effects and blur effects.
19. A method to generate a partial display update in a windowing system having a plurality of display layers, comprising:
identifying an output region associated with a top-most display layer, the output region having an associated output size and location;
identifying a buffer having a size and location corresponding to the output size and location;
identifying the top-most display layer as a current display layer;
determining if a filter is associated with the current display layer and, if there is, determining an input region for the filter, said input region having an associated size and location, and adjusting the buffer size and location to correspond to the union of the input region's size and location and the buffer's size and location;
setting the display layer immediately lower than the current display layer to the current display layer;
repeating the act of determining for each relevant display layer in the windowing system;
establishing an output buffer having a size and location to accommodate the size and location of the buffer; and compositing that portion of each display layer that overlaps the output buffer's location into the established output buffer.
identifying an output region associated with a top-most display layer, the output region having an associated output size and location;
identifying a buffer having a size and location corresponding to the output size and location;
identifying the top-most display layer as a current display layer;
determining if a filter is associated with the current display layer and, if there is, determining an input region for the filter, said input region having an associated size and location, and adjusting the buffer size and location to correspond to the union of the input region's size and location and the buffer's size and location;
setting the display layer immediately lower than the current display layer to the current display layer;
repeating the act of determining for each relevant display layer in the windowing system;
establishing an output buffer having a size and location to accommodate the size and location of the buffer; and compositing that portion of each display layer that overlaps the output buffer's location into the established output buffer.
20. The method of claim 19, wherein the act of identifying comprises obtaining output region information from a windowing subsystem.
21. The method of claim 19, wherein the act of establishing comprises instantiating an output buffer.
22. The method of claim 19, wherein the act of compositing comprises compositing each display layer that overlaps the output buffer's location beginning with a bottom-most display layer and proceeding in a linear fashion to the top-most display layer.
23. The method of claim 19, wherein the act of compositing uses one or more graphics processing units.
24. The method of claim 23, wherein the acts of identifying an output region, identifying a buffer, identifying the top-most display layer, determining if a filter is associated with the current display layer, setting the display layer immediately lower than the current display layer to the current display layer and establishing an output buffer use one or more general purpose central processing units.
25. The method of claim 19, further comprising transferring that portion of the output buffer corresponding to the output region's location to a frame buffer.
26. The method of claim 19, wherein the relevant display layers in the windowing system comprise those layers associated with a specified display unit.
27. A computer-readable medium having computer-executable instructions stored therein for performing the method recited in any one of claims 19 through 26.
28. A method to generate a partial display update, comprising:
identifying an output region associated with a top-most display layer, the output region having an associated output size and location;
determining an input region for each of one or more filters, each of said one or more filters associated with a display layer and having an associated input size and location;
establishing a buffer having a size and location to accommodate the union of the output region's location and each of the one or more input regions' locations;
and compositing that portion of each display layer that overlaps the buffer's location into the established buffer.
identifying an output region associated with a top-most display layer, the output region having an associated output size and location;
determining an input region for each of one or more filters, each of said one or more filters associated with a display layer and having an associated input size and location;
establishing a buffer having a size and location to accommodate the union of the output region's location and each of the one or more input regions' locations;
and compositing that portion of each display layer that overlaps the buffer's location into the established buffer.
29. The method of claim 28, wherein the act of identifying comprises obtaining output region information from a windowing subsystem.
30. The method of claim 28, wherein the top-most display layer comprises an associated filter.
31. The method of claim 28, wherein the act of compositing comprises compositing each display layer that overlaps the buffer's location beginning with a bottom-most display layer and proceeding in a linear fashion to the top-most display layer.
32. The method of claim 28, wherein the act of compositing uses one or more graphics processing units.
33. The method of claim 32, wherein the acts of identifying, determining and establishing uses one or more general purpose central processing units
34. The method of claim 28, further comprising transferring that portion of the buffer corresponding to the output region's location to a frame buffer.
35. A computer-readable medium having computer-executable instructions stored therein for performing the method recited in any one of claims 28 through 34.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2765087A CA2765087C (en) | 2004-06-25 | 2005-06-01 | Display updates in a windowing system using a programmable graphics processing unit |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/877,358 US20050285866A1 (en) | 2004-06-25 | 2004-06-25 | Display-wide visual effects for a windowing system using a programmable graphics processing unit |
| US10/877,358 | 2004-06-25 | ||
| US10/957,557 US7652678B2 (en) | 2004-06-25 | 2004-10-01 | Partial display updates in a windowing system using a programmable graphics processing unit |
| US10/957,557 | 2004-10-01 | ||
| PCT/US2005/019108 WO2006007251A2 (en) | 2004-06-25 | 2005-06-01 | Display updates in a windowing system using a programmable graphics processing unit. |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2765087A Division CA2765087C (en) | 2004-06-25 | 2005-06-01 | Display updates in a windowing system using a programmable graphics processing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2558013A1 true CA2558013A1 (en) | 2006-01-19 |
| CA2558013C CA2558013C (en) | 2012-11-13 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2558013A Active CA2558013C (en) | 2004-06-25 | 2005-06-01 | Display updates in a windowing system using a programmable graphics processing unit. |
| CA2765087A Active CA2765087C (en) | 2004-06-25 | 2005-06-01 | Display updates in a windowing system using a programmable graphics processing unit |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2765087A Active CA2765087C (en) | 2004-06-25 | 2005-06-01 | Display updates in a windowing system using a programmable graphics processing unit |
Country Status (5)
| Country | Link |
|---|---|
| US (4) | US7652678B2 (en) |
| EP (1) | EP1759381B1 (en) |
| AU (2) | AU2005262676B2 (en) |
| CA (2) | CA2558013C (en) |
| WO (1) | WO2006007251A2 (en) |
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2004
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2005
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- 2005-06-01 WO PCT/US2005/019108 patent/WO2006007251A2/en not_active Application Discontinuation
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- 2005-06-01 CA CA2765087A patent/CA2765087C/en active Active
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2007
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2008
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|---|---|
| US20050285867A1 (en) | 2005-12-29 |
| US20070257925A1 (en) | 2007-11-08 |
| AU2008207617A1 (en) | 2008-09-25 |
| AU2005262676B2 (en) | 2008-11-13 |
| EP1759381A2 (en) | 2007-03-07 |
| US7652678B2 (en) | 2010-01-26 |
| US20110216079A1 (en) | 2011-09-08 |
| AU2008207617B2 (en) | 2010-09-30 |
| US8144159B2 (en) | 2012-03-27 |
| CA2558013C (en) | 2012-11-13 |
| US20070182749A1 (en) | 2007-08-09 |
| CA2765087A1 (en) | 2006-01-19 |
| WO2006007251A3 (en) | 2006-06-01 |
| CA2765087C (en) | 2013-09-03 |
| WO2006007251A2 (en) | 2006-01-19 |
| EP1759381B1 (en) | 2018-12-26 |
| US7969453B2 (en) | 2011-06-28 |
| AU2005262676A1 (en) | 2006-01-19 |
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