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annotate src/video/ps3/spulibs/spu_common.h @ 3475:3bd01435287f

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Added comment for pixel-perfect line workaround.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Nov 2009 07:26:52 +0000
parents 94fb40a4a9a7
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rev   line source
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1 /*
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2 * SDL - Simple DirectMedia Layer
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3 * CELL BE Support for PS3 Framebuffer
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4 * Copyright (C) 2008, 2009 International Business Machines Corporation
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5 *
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6 * This library is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU Lesser General Public License as published
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8 * by the Free Software Foundation; either version 2.1 of the License, or
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9 * (at your option) any later version.
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10 *
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11 * This library is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * Lesser General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Lesser General Public
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17 * License along with this library; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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19 * USA
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20 *
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21 * Martin Lowinski <lowinski [at] de [dot] ibm [ibm] com>
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22 * Dirk Herrendoerfer <d.herrendoerfer [at] de [dot] ibm [dot] com>
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23 * SPE code based on research by:
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24 * Rene Becker
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25 * Thimo Emmerich
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26 */
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27
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28 /* Common definitions/makros for SPUs */
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29
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30 #ifndef _SPU_COMMON_H
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31 #define _SPU_COMMON_H
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32
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33 #include <stdio.h>
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34 #include <stdint.h>
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35 #include <string.h>
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36
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37 /* Tag management */
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38 #define DMA_WAIT_TAG(_tag) \
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39 mfc_write_tag_mask(1<<(_tag)); \
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40 mfc_read_tag_status_all();
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41
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42 /* SPU mailbox messages */
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43 #define SPU_READY 0
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44 #define SPU_START 1
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45 #define SPU_FIN 2
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46 #define SPU_EXIT 3
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47
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48 /* Tags */
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49 #define RETR_BUF 0
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50 #define STR_BUF 1
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51 #define TAG_INIT 2
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52
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53 /* Buffersizes */
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54 #define MAX_HDTV_WIDTH 1920
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55 #define MAX_HDTV_HEIGHT 1080
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56 /* One stride of HDTV */
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57 #define BUFFER_SIZE 7680
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58
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59 /* fb_writer ppu/spu exchange parms */
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60 struct fb_writer_parms_t {
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61 uint8_t *data;
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62 uint8_t *center;
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63 uint32_t out_line_stride;
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64 uint32_t in_line_stride;
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65 uint32_t bounded_input_height;
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66 uint32_t bounded_input_width;
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67 uint32_t fb_pixel_size;
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68
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69 /* This padding is to fulfill the need for 16 byte alignment. On parm change, update! */
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70 char padding[4];
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71 } __attribute__((aligned(128)));
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72
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73 /* yuv2rgb ppu/spu exchange parms */
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74 struct yuv2rgb_parms_t {
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75 uint8_t* y_plane;
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76 uint8_t* v_plane;
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77 uint8_t* u_plane;
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78
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79 uint8_t* dstBuffer;
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80
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81 unsigned int src_pixel_width;
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82 unsigned int src_pixel_height;
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83
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84 /* This padding is to fulfill the need for 16 byte alignment. On parm change, update! */
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85 char padding[128 - ((4 * sizeof(uint8_t *) + 2 * sizeof(unsigned int)) & 0x7F)];
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86 } __attribute__((aligned(128)));
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87
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88 /* bilin_scaler ppu/spu exchange parms */
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89 struct scale_parms_t {
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90 uint8_t* y_plane;
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91 uint8_t* v_plane;
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92 uint8_t* u_plane;
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93
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94 uint8_t* dstBuffer;
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95
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96 unsigned int src_pixel_width;
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97 unsigned int src_pixel_height;
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98
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99 unsigned int dst_pixel_width;
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100 unsigned int dst_pixel_height;
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101
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102 /* This padding is to fulfill the need for 16 byte alignment. On parm change, update! */
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103 char padding[128 - ((4 * sizeof(uint8_t *) + 4 * sizeof(unsigned int)) & 0x7F)];
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104 } __attribute__((aligned(128)));
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105
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106 #endif /* _SPU_COMMON_H */
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107
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108