Commit message (Collapse) | Author | Age | Files | Lines | |
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* | Add copyright and license headers. | P. J. McDermott | 2013-11-01 | 1 | -0/+18 |
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* | Change the viewport size. | P. J. McDermott | 2013-03-05 | 1 | -2/+2 |
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* | src/area.c: Disable RLE on area layers. | P. J. McDermott | 2013-03-04 | 1 | -2/+1 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This mostly fixes the performance regression introduced by merging the palette cycling and map movement demos. I removed the 10-ms delay between frames in the demo and tested the framerates: Test Framerate with RLE (fps) Framerate without RLE (fps) 1 160.306202859 1730.255164034 2 142.599639495 1758.024691358 3 167.588560668 1797.97979798 4 162.279202279 1764.560099133 5 157.278550917 1625.570776256 avg 158.010431244 1735.278105752 I then restored the delay and watched the CPU usage: CPU usage with RLE CPU usage without RLE ~9.00% ~1.00% This is happening because we're now cycling palettes each frame and, as a result, SDL needs to decode and encode the surfaces each frame to map palettes (though I'm not sure why it needs a decoded surface just to map palettes). (Normally, we probably wouldn't cycle palettes /each frame/, so this is something of an extreme case.) See for example the SDL_UnRLESurface() call at line 551 of src/video/SDL_pixels.c in SDL 1.2.15. | ||||
* | Support palette cycling in area layers. | P. J. McDermott | 2013-03-04 | 1 | -17/+13 |
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* | src/area.c: Split up area_new(). | P. J. McDermott | 2013-03-02 | 1 | -11/+24 |
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* | Prevent segmentation faults in some places. | P. J. McDermott | 2013-02-20 | 1 | -0/+15 |
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* | Clean up some "#if 0" conditions. | P. J. McDermott | 2013-02-19 | 1 | -2/+2 |
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* | Try to get some small performance improvements. | P. J. McDermott | 2013-02-19 | 1 | -1/+2 |
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* | src/area.c: Consolidate area layer creation code. | P. J. McDermott | 2013-02-19 | 1 | -38/+16 |
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* | Limit surfaces to 8 bpp. Set keys and palettes. | P. J. McDermott | 2013-02-19 | 1 | -5/+40 |
| | | | | Also clean up main() a bit more. | ||||
* | Add struct map * member to struct area. | P. J. McDermott | 2013-02-19 | 1 | -22/+23 |
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* | Merge src/layer.h into src/area.h. | P. J. McDermott | 2013-02-19 | 1 | -1/+0 |
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* | Consolidate area layers a bit. | P. J. McDermott | 2013-02-19 | 1 | -23/+27 |
| | | | | Statically blit together as much as possible before rendering. | ||||
* | Adjust height of demo "sprite". | P. J. McDermott | 2013-02-19 | 1 | -3/+3 |
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* | Improve demo and clean up main(). | P. J. McDermott | 2013-02-19 | 1 | -0/+12 |
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* | Attempt to store surfaces in video memory. | P. J. McDermott | 2013-02-19 | 1 | -1/+1 |
| | | | | This shouldn't noticably affect performance on any modern PC. | ||||
* | Fix graphics glitch with negative viewport coords. | P. J. McDermott | 2013-02-19 | 1 | -14/+33 |
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* | Implement and test renderer. | P. J. McDermott | 2013-02-19 | 1 | -5/+107 |
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* | Begin work on areas and viewports. | P. J. McDermott | 2013-02-18 | 1 | -0/+50 |