| Line No. | Rev | Author | Line |
|---|---|---|---|
| 1 | 32 | kaklik | /***************************************************************************** |
| 2 | * Module for Microchip Graphics Library |
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| 3 | * Palette Support |
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| 4 | ***************************************************************************** |
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| 5 | * FileName: Palette.h |
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| 6 | * Dependencies: Graphics.h |
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| 7 | * Processor: PIC24, PIC32 |
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| 8 | * Compiler: MPLAB C30, MPLAB C32 |
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| 9 | * Linker: MPLAB LINK30, MPLAB LINK32 |
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| 10 | * Company: Microchip Technology Incorporated |
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| 11 | * |
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| 12 | * Software License Agreement |
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| 13 | * |
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| 14 | * Copyright © 2008 Microchip Technology Inc. All rights reserved. |
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| 15 | * Microchip licenses to you the right to use, modify, copy and distribute |
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| 16 | * Software only when embedded on a Microchip microcontroller or digital |
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| 17 | * signal controller, which is integrated into your product or third party |
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| 18 | * product (pursuant to the sublicense terms in the accompanying license |
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| 19 | * agreement). |
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| 20 | * |
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| 21 | * You should refer to the license agreement accompanying this Software |
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| 22 | * for additional information regarding your rights and obligations. |
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| 23 | * |
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| 24 | * SOFTWARE AND DOCUMENTATION ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY |
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| 25 | * KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY WARRANTY |
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| 26 | * OF MERCHANTABILITY, TITLE, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR |
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| 27 | * PURPOSE. IN NO EVENT SHALL MICROCHIP OR ITS LICENSORS BE LIABLE OR |
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| 28 | * OBLIGATED UNDER CONTRACT, NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, |
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| 29 | * BREACH OF WARRANTY, OR OTHER LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT |
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| 30 | * DAMAGES OR EXPENSES INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, |
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| 31 | * INDIRECT, PUNITIVE OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, |
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| 32 | * COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY |
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| 33 | * CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), |
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| 34 | * OR OTHER SIMILAR COSTS. |
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| 35 | * |
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| 36 | * Author Date Comment |
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| 37 | *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 38 | * Pradeep Budagutta 11/06/09 Initial Release |
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| 39 | *****************************************************************************/ |
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| 40 | #ifndef _PALETTE_H |
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| 41 | #define _PALETTE_H |
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| 42 | |||
| 43 | #include "Graphics\Graphics.h" |
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| 44 | |||
| 45 | #ifdef USE_PALETTE |
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| 46 | |||
| 47 | typedef union |
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| 48 | { |
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| 49 | WORD value; //16 bits |
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| 50 | struct |
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| 51 | { |
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| 52 | BYTE r : 5; |
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| 53 | BYTE g : 6; |
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| 54 | BYTE b : 5; |
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| 55 | } color; |
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| 56 | |||
| 57 | struct |
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| 58 | { |
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| 59 | BYTE luma : 4; |
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| 60 | } monchrome; |
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| 61 | |||
| 62 | } PALETTE_ENTRY; |
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| 63 | |||
| 64 | typedef struct |
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| 65 | { |
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| 66 | WORD id; |
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| 67 | WORD length; |
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| 68 | } PALETTE_HEADER; |
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| 69 | |||
| 70 | typedef struct |
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| 71 | { |
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| 72 | SHORT type; // must be FLASH |
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| 73 | PALETTE_HEADER header; |
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| 74 | PALETTE_ENTRY *pPaletteEntry; |
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| 75 | } PALETTE_FLASH; |
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| 76 | |||
| 77 | #define PALETTE_EXTERNAL EXTDATA /* PALETTE_EXTERNAL = { PALETTE_HEADER, PALETTE_ENTRIES } */ |
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| 78 | |||
| 79 | /********************************************************************* |
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| 80 | * Function: void PaletteInit(void) |
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| 81 | * |
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| 82 | * Overview: Initializes the CLUT. |
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| 83 | * |
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| 84 | * PreCondition: none |
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| 85 | * |
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| 86 | * Input: none |
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| 87 | * |
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| 88 | * Output: none |
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| 89 | * |
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| 90 | * Side Effects: Drawing mode will change to support palettes |
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| 91 | * |
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| 92 | ********************************************************************/ |
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| 93 | void PaletteInit(void); |
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| 94 | |||
| 95 | /********************************************************************* |
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| 96 | * Function: void EnablePalette(void) |
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| 97 | * |
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| 98 | * Overview: Enables the Palette mode |
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| 99 | * |
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| 100 | * PreCondition: none |
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| 101 | * |
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| 102 | * Input: none |
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| 103 | * |
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| 104 | * Output: none |
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| 105 | * |
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| 106 | * Side Effects: |
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| 107 | * |
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| 108 | ********************************************************************/ |
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| 109 | void EnablePalette(void); |
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| 110 | |||
| 111 | /********************************************************************* |
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| 112 | * Function: void DisablePalette(void) |
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| 113 | * |
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| 114 | * Overview: Disables the Palette mode |
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| 115 | * |
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| 116 | * PreCondition: none |
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| 117 | * |
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| 118 | * Input: none |
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| 119 | * |
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| 120 | * Output: none |
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| 121 | * |
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| 122 | * Side Effects: |
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| 123 | * |
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| 124 | ********************************************************************/ |
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| 125 | void DisablePalette(void); |
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| 126 | |||
| 127 | /********************************************************************* |
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| 128 | * Function: BYTE IsPaletteEnabled(void) |
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| 129 | * |
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| 130 | * Overview: Returns if the Palette mode is enabled or not |
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| 131 | * |
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| 132 | * PreCondition: none |
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| 133 | * |
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| 134 | * Input: none |
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| 135 | * |
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| 136 | * Output: Enabled -> 1, Disabled -> 0 |
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| 137 | * |
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| 138 | * Side Effects: |
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| 139 | * |
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| 140 | ********************************************************************/ |
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| 141 | BYTE IsPaletteEnabled(void); |
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| 142 | |||
| 143 | /********************************************************************* |
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| 144 | * Function: BYTE GetPaletteChangeError(void) |
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| 145 | * |
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| 146 | * Overview: Returns the Palette change error status |
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| 147 | * |
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| 148 | * PreCondition: none |
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| 149 | * |
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| 150 | * Input: none |
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| 151 | * |
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| 152 | * Output: NoError -> Zero; Error -> Non Zero |
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| 153 | * |
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| 154 | * Side Effects: none |
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| 155 | * |
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| 156 | ********************************************************************/ |
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| 157 | BYTE GetPaletteChangeError(void); |
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| 158 | |||
| 159 | /********************************************************************* |
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| 160 | * Function: void ClearPaletteChangeError(void) |
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| 161 | * |
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| 162 | * Overview: Clears the Palette change error status |
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| 163 | * |
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| 164 | * PreCondition: none |
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| 165 | * |
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| 166 | * Input: none |
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| 167 | * |
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| 168 | * Output: none |
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| 169 | * |
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| 170 | * Side Effects: none |
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| 171 | * |
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| 172 | ********************************************************************/ |
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| 173 | void ClearPaletteChangeError(void); |
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| 174 | |||
| 175 | /********************************************************************* |
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| 176 | * Function: BYTE SetPaletteBpp(BYTE bpp) |
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| 177 | * |
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| 178 | * Overview: Sets the CLUT's number of valid entries. |
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| 179 | * |
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| 180 | * PreCondition: PaletteInit() must be called before. |
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| 181 | * |
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| 182 | * Input: bpp -> Bits per pixel |
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| 183 | * |
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| 184 | * Output: Status: Zero -> Success, Non-zero -> Error. |
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| 185 | * |
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| 186 | * Side Effects: Drawing mode will change to support palettes |
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| 187 | * |
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| 188 | ********************************************************************/ |
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| 189 | BYTE SetPaletteBpp(BYTE bpp); |
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| 190 | |||
| 191 | /********************************************************************* |
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| 192 | * Function: void RequestPaletteChange(void *pPalette, WORD startEntry, WORD length) |
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| 193 | * |
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| 194 | * Overview: Loads the palettes from the flash during vertical blanking period |
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| 195 | * if possible, otherwise loads immediately. |
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| 196 | * |
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| 197 | * PreCondition: PaletteInit() must be called before. |
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| 198 | * |
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| 199 | * Input: pPalette - Pointer to the palette structure |
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| 200 | * startEntry - Start entry to load (inclusive) |
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| 201 | * length - Number of entries |
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| 202 | * |
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| 203 | * Output: none |
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| 204 | * |
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| 205 | * Side Effects: There may be a slight flicker when the Palette entries |
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| 206 | * are getting loaded one by one. |
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| 207 | * |
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| 208 | ********************************************************************/ |
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| 209 | void RequestPaletteChange(void *pPalette, WORD startEntry, WORD length); |
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| 210 | |||
| 211 | /********************************************************************* |
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| 212 | * Macro: RequestEntirePaletteChange(pPalette) |
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| 213 | * |
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| 214 | * Overview: Loads all the palette entries from the flash during |
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| 215 | * vertical blanking period if possible, otherwise |
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| 216 | * loads immediately. |
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| 217 | * |
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| 218 | * PreCondition: PaletteInit() must be called before. |
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| 219 | * |
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| 220 | * Input: pPalette - Pointer to the palette structure |
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| 221 | * |
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| 222 | * Output: none |
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| 223 | * |
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| 224 | * Side Effects: There may be a slight flicker when the Palette entries |
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| 225 | * are getting loaded one by one. |
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| 226 | * |
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| 227 | ********************************************************************/ |
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| 228 | #define RequestEntirePaletteChange(pPalette) RequestPaletteChange(pPalette, 0, 256) |
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| 229 | |||
| 230 | /********************************************************************* |
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| 231 | * Function: BYTE SetPalette(void *pPalette, WORD startEntry, WORD length) |
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| 232 | * |
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| 233 | * Overview: Loads the palettes from the flash immediately. |
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| 234 | * |
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| 235 | * PreCondition: PaletteInit() must be called before. |
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| 236 | * |
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| 237 | * Input: pPalette - Pointer to the palette structure |
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| 238 | * startEntry - Start entry to load (inclusive) |
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| 239 | * length - Number of entries |
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| 240 | * |
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| 241 | * Output: Status: Zero -> Success, Non-zero -> Error. |
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| 242 | * |
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| 243 | * Side Effects: There may be a slight flicker when the Palette entries |
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| 244 | * are getting loaded one by one. |
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| 245 | * |
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| 246 | ********************************************************************/ |
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| 247 | BYTE SetPalette(void *pPalette, WORD startEntry, WORD length); |
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| 248 | |||
| 249 | /********************************************************************* |
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| 250 | * Macro: SetEntirePalette(pPalette) |
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| 251 | * |
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| 252 | * Overview: Loads all the palette entries from the flash immediately. |
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| 253 | * |
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| 254 | * PreCondition: PaletteInit() must be called before. |
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| 255 | * |
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| 256 | * Input: pPalette - Pointer to the palette structure |
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| 257 | * |
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| 258 | * Output: Status: Zero -> Success, Non-zero -> Error. |
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| 259 | * |
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| 260 | * Side Effects: There may be a slight flicker when the Palette entries |
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| 261 | * are getting loaded one by one. |
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| 262 | * |
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| 263 | ********************************************************************/ |
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| 264 | #define SetEntirePalette(pPalette) SetPalette(pPalette, 0, 256) |
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| 265 | |||
| 266 | /********************************************************************* |
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| 267 | * Function: BYTE SetPaletteFlash(PALETTE_ENTRY *pPaletteEntry, WORD startEntry, WORD length) |
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| 268 | * |
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| 269 | * Overview: Loads the palettes from the flash immediately. |
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| 270 | * |
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| 271 | * PreCondition: PaletteInit() must be called before. |
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| 272 | * |
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| 273 | * Input: pPaletteEntry - Pointer to the palette table in ROM |
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| 274 | * startEntry - Start entry to load (inclusive) |
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| 275 | * length - Number of entries |
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| 276 | * |
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| 277 | * Output: Status: Zero -> Success, Non-zero -> Error. |
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| 278 | * |
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| 279 | * Side Effects: There may be a slight flicker when the Palette entries |
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| 280 | * are getting loaded one by one. |
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| 281 | * |
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| 282 | ********************************************************************/ |
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| 283 | BYTE SetPaletteFlash(PALETTE_ENTRY *pPaletteEntry, WORD startEntry, WORD length); |
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| 284 | |||
| 285 | #endif //USE_PALETTE |
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| 286 | #endif |
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