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annotate src/video/photon/SDL_photon_render.h @ 3631:76667e288846

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Revert r5463: Alpha blend "correctness" patch. Sam says: "We should revert this. I applied it in 1.3 and then fixed it for correctness."
author Ryan C. Gordon <icculus@icculus.org>
date Sun, 10 Jan 2010 08:59:25 +0000
parents d6b79fc83362
children f7b03b6838cb
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21
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22 QNX Photon GUI SDL driver
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23 Copyright (C) 2009 Mike Gorchak
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24 (mike@malva.ua, lestat@i.com.ua)
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25 */
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26
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27 #ifndef __SDL_PHOTON_RENDER_H__
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28 #define __SDL_PHOTON_RENDER_H__
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29
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30 #include "../SDL_sysvideo.h"
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31
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32 #include <Ph.h>
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33 #include <photon/PhRender.h>
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34
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35 #define SDL_PHOTON_MAX_SURFACES 3
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36
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37 #define SDL_PHOTON_SURFTYPE_UNKNOWN 0x00000000
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38 #define SDL_PHOTON_SURFTYPE_OFFSCREEN 0x00000001
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39 #define SDL_PHOTON_SURFTYPE_PHIMAGE 0x00000002
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40
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41 #define SDL_PHOTON_UNKNOWN_BLEND 0x00000000
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42 #define SDL_PHOTON_DRAW_BLEND 0x00000001
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43 #define SDL_PHOTON_TEXTURE_BLEND 0x00000002
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44
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45 typedef struct SDL_RenderData
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46 {
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47 SDL_bool enable_vsync; /* VSYNC flip synchronization enable */
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48 uint32_t surface_visible_idx; /* Index of visible surface */
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49 uint32_t surface_render_idx; /* Index of render surface */
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50 uint32_t surfaces_count; /* Amount of allocated surfaces */
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51 uint32_t surfaces_type; /* Type of allocated surfaces */
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52 uint32_t window_width; /* Last active window width */
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53 uint32_t window_height; /* Last active window height */
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54 PhGC_t* gc; /* Graphics context */
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55 SDL_bool direct_mode; /* Direct Mode state */
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56 PdOffscreenContext_t* osurfaces[SDL_PHOTON_MAX_SURFACES];
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57 PhImage_t* psurfaces[SDL_PHOTON_MAX_SURFACES];
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58 PmMemoryContext_t* pcontexts[SDL_PHOTON_MAX_SURFACES];
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59 } SDL_RenderData;
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60
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61 typedef struct SDL_TextureData
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62 {
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63 uint32_t surface_type;
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64 PdOffscreenContext_t* osurface;
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65 PhImage_t* psurface;
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66 PmMemoryContext_t* pcontext;
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67 } SDL_TextureData;
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68
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69 extern void photon_addrenderdriver(_THIS);
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70
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71 /* Helper function, which redraws the backbuffer */
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72 int _photon_update_rectangles(SDL_Renderer* renderer, PhRect_t* rect);
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73
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74 #endif /* __SDL_PHOTON_RENDER_H__ */
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75
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76 /* vi: set ts=4 sw=4 expandtab: */