{"id":12867,"date":"2024-01-11T17:44:13","date_gmt":"2024-01-11T09:44:13","guid":{"rendered":"https:\/\/blog.iyatt.com\/?p=12867"},"modified":"2024-05-05T12:31:04","modified_gmt":"2024-05-05T04:31:04","slug":"rgb888-%e8%bd%ac-rgb565%ef%bc%88tft-%e5%bc%80%e5%8f%91%ef%bc%89","status":"publish","type":"post","link":"https:\/\/blog.iyatt.com\/?p=12867","title":{"rendered":"RGB888 \u8f6c 565\uff08TFT \u5f00\u53d1\uff09"},"content":{"rendered":"

\u521a\u4e0a\u624b\u4e00\u5757 TFT \u5c4f\uff0c\u4f7f\u7528 Arduino \u63a7\u5236\uff0c\u5728\u770b Adafruit-ST7735-Library \u5e93\u7684 demo \u65f6\uff0c\u53d1\u73b0\u91cc\u9762\u7528\u7684\u989c\u8272\u503c\u5f88\u5947\u602a\uff0c\u5e76\u4e0d\u662f\u4e00\u822c\u7528\u7684\u6bcf\u79cd\u57fa\u8272\u53d6 0-255 \u7684 RGB\uff0c\u7136\u540e\u624d\u6ce8\u610f\u5230\u6ce8\u91ca\u5199\u4e86 \u201c565\u201d
\n\"file\"<\/p>\n

\u4ee5\u524d\u6ca1\u7528\u8fc7\u8fd9\u79cd\u989c\u8272\u6a21\u5f0f\uff0c\u67e5\u4e86\u4e00\u4e0b\u5c31\u61c2\u4e86\u3002
\n\u4e00\u822c\u7528\u7684 RGB \u503c\u6bcf\u79cd\u57fa\u8272\u662f 256 \u4e2a\u7ea7\u522b\uff0c\u4e5f\u5c31\u662f 2^8<\/code>\uff0c\u6bcf\u4e2a\u57fa\u8272\u662f\u4e00\u4e2a 8 \u4f4d\u6570\uff0c\u6240\u4ee5\u79f0\u4e3a RGB888\uff0c\u4e09\u4e2a\u57fa\u8272\u5171 24 \u4f4d\uff0c\u4e5f\u5c31\u662f 24 \u4f4d\u771f\u5f69\u8272\u3002
\n\u8fd9\u4e2a 565 \u5c31\u662f R\u3001G\u3001B \u4f4d\u6570\u5206\u522b\u662f 5\u30016\u30015\uff0c\u603b\u5171 16 \u4f4d\uff0c\u5373 16 \u4f4d\u771f\u5f69\u8272\u3002<\/p>\n

\u8981\u8fdb\u884c\u989c\u8272\u8f6c\u6362\u7684\u8bdd\uff0c\u9996\u5148\u8981\u4ece RGB888 \u7684\u989c\u8272\u503c\u4e2d\u5206\u522b\u63d0\u53d6\u51fa\u4e09\u4e2a\u57fa\u8272\u7684\u989c\u8272\u503c\u3002\u6700\u5de6\u8fb9\u7684 8 \u4f4d\u662f R\uff0c\u4e2d\u95f4\u7684 8 \u4f4d\u662f G\uff0c\u6700\u53f3\u8fb9\u7684 8 \u4f4d\u662f B\u3002\u5148\u7528\u4e0e\u8fd0\u7b97\u5c31\u53ef\u4ee5\u5c06\u5bf9\u5e94\u57fa\u8272\u5916\u7684\u6570\u503c\u6e05\u96f6\uff0c\u518d\u4f4d\u79fb\u53d6\u51fa\u6765\u3002<\/p>\n

    uint8_t r8 = (rgb888 & 0xFF0000) >> 16;\n    uint8_t g8 = (rgb888 & 0x00FF00) >> 8;\n    uint8_t b8 = (rgb888 & 0x0000FF);<\/code><\/pre>\n
\u6b64\u65f6\u53d6\u51fa\u6765\u7684\u6bcf\u79cd\u57fa\u8272\u662f 8 \u4f4d\u7684\uff0cR \u548c B \u8981 5 \u4f4d\uff0c\u6240\u4ee5\u53f3\u79fb 3 \u4f4d\uff0cG \u8981 6 \u4f4d\uff0c\u6240\u4ee5\u53f3\u79fb 2 \u4f4d\u3002R \u653e\u5230\u6700\u5de6\u8fb9 5  \u4f4d\uff0c\u6240\u4ee5\u5de6\u79fb 5 \u4f4d\uff0cG \u653e\u5728\u4e2d\u95f4 6 \u4f4d\uff0c\u6240\u4ee5\u5de6\u79fb 5 \u4f4d\uff0cB \u653e\u5728\u6700\u53f3\u8fb9 5 \u4f4d\uff0c\u65e0\u9700\u989d\u5916\u5904\u7406\u3002<\/p>\n
uint8_t r5 = ((r >> 3) << 11);\nuint8_t r6 = ((g >> 2) << 5);\nuint8_t r5 = (b >> 3);<\/code><\/pre>\n
\u6700\u540e\u7528\u6216\u8fd0\u7b97\u62fc\u5728\u4e00\u8d77\u5c31\u884c\uff0c\u4e0b\u9762\u662f\u6700\u7ec8\u7684\u4ee3\u7801\uff1a<\/p>\n
\/\/ \u53c2\u6570\u4f20\u5165\u4e00\u4e2a\u5341\u516d\u8fdb\u5236\u989c\u8272\u503c\u4f7f\u7528\u8be5\u51fd\u6570\uff0c\u6bd4\u5982\n\/\/ \u7ea2\u8272 0xFF0000\n\/\/ \u7eff\u8272 0x00FF00\n\/\/ \u84dd\u8272 0x0000FF\nuint16_t rgb888_to_565 (uint32_t rgb888, bool reverse = false)\n{\n    uint8_t r = (rgb888 & 0xFF0000) >> 16;\n    uint8_t g = (rgb888 & 0x00FF00) >> 8;\n    uint8_t b = (rgb888 & 0x0000FF);\n\n    if (reverse)\n    {\n        return ((b >> 3) << 11) |\n                ((g >> 2) << 5) |\n                (r >> 3);\n    }\n\n    return ((r >> 3) << 11) |\n            ((g >> 2) << 5) |\n            (b >> 3);\n}\n\n\/\/ \u5982\u679c\u5206\u522b\u4f20\u5165\u57fa\u8272\u4f7f\u7528\u8be5\u51fd\u6570\uff0c\u6bd4\u5982\n\/\/ \u7ea2\u8272 255, 0, 0\n\/\/ \u7eff\u8272 0, 255, 0\n\/\/ \u84dd\u8272 0, 0, 255\nuint16_t rgb888_to_565(uint8_t r, uint8_t g, uint8_t b, bool reverse = false)\n{\n    if (reverse)\n    {\n        return ((b >> 3) << 11) |\n                ((g >> 2) << 5) |\n                (r >> 3);\n    }\n\n    return ((r >> 3) << 11) |\n            ((g >> 2) << 5) |\n            (b >> 3);\n}<\/code><\/pre>\n
\u6211\u5728\u5b9e\u9645\u64cd\u4f5c\u7684\u65f6\u5019\u9047\u5230\u4e00\u4e2a\u95ee\u9898\uff0c\u5982\u679c\u521d\u59cb\u5316\u7684\u65f6\u5019\u53c2\u6570\u4f7f\u7528 INITR_GREENTAB\uff0c\u989c\u8272\u8bbe\u7f6e\u5c31\u662f RGB\uff0c\u4f46\u662f\u5728\u6211\u4f7f\u7528\u7684\u5c4f\u5e55\u4e0a\u51fa\u73b0\u4e86\u663e\u793a\u504f\u79fb\u7684\u95ee\u9898\uff0c\u7136\u540e\u770b\u5230 demo \u7684\u6ce8\u91ca\u8bf4\u5982\u679c\u662f\u6709\u504f\u79fb\u7684\u5c4f\u5e55\uff0c\u53c2\u6570\u8981\u4f7f\u7528 INITR_GREENTAB\u3002\u7136\u540e\u504f\u79fb\u786e\u5b9e\u89e3\u51b3\u4e86\uff0c\u4f46\u662f\u989c\u8272\u8bbe\u7f6e\u53c8\u53d8\u6210\u4e86 BGR\uff0c\u4e5f\u5c31\u662f\u987a\u5e8f\u53cd\u4e86\u3002\u56e0\u6b64\u4e0a\u9762\u7684\u51fd\u6570\u6211\u591a\u52a0\u4e86\u4e00\u4e2a\u53c2\u6570\u63a7\u5236\uff0c\u9ed8\u8ba4\u503c false \u5c31\u662f\u8fd4\u56de RGB\uff0c\u5982\u679c\u4f20\u5165\u53c2\u6570 true\uff0c\u5219\u8fd4\u56de BGR\uff0c\u8fd9\u6837\u4e24\u79cd\u989c\u8272\u987a\u5e8f\u90fd\u80fd\u517c\u987e\u3002
\n\"file\"<\/p>\n
\u5e38\u7528\u989c\u8272 RGB \u503c\uff1a<\/p>\n
    \n
  • \u9ed1\u8272 0,0,0 0x000000<\/li>\n
  • \u767d\u8272 255,255,255 0xFFFFFF<\/li>\n
  • \u84dd\u8272 0,0,255 0x0000FF<\/li>\n
  • \u7d2b\u8272 255,0,255, 0xFF00FF<\/li>\n
  • \u8c61\u7259\u9ed1 88,87,86 0x666666<\/li>\n
  • \u5929\u84dd\u7070 202,235,216 0xF0FFFF<\/li>\n
  • \u51b7\u7070 128,138,135 0x808A87<\/li>\n
  • \u7070\u8272 192,192,192 0xCCCCCC<\/li>\n
  • \u6696\u7070 128,118,105 0x808069<\/li>\n
  • \u8c61\u7259\u7070 251,255,242 0xFAFFF0<\/li>\n
  • \u77f3\u677f\u7070 118,128,105 0xE6E6E6<\/li>\n
  • \u4e9a\u9ebb\u7070 250,240,230 0xFAF0E6<\/li>\n
  • \u767d\u70df\u7070 245,245,245 0xF5F5F5<\/li>\n
  • \u674f\u4ec1\u7070 255,235,205 0xFFFFCD<\/li>\n
  • \u86cb\u58f3\u7070 252,230,202 0xFCE6C9<\/li>\n
  • \u8d1d\u58f3\u7070 255,245,238 0xFFF5EE<\/li>\n
  • \u7ea2\u8272 255,0,0 0xFF0000<\/li>\n
  • \u9ec4\u8272 255,255,0 0xFFFF00<\/li>\n
  • \u9549\u7ea2 227,23,13 0xE3170D<\/li>\n
  • \u9549\u9ec4 255,153,18 0xFF9912<\/li>\n
  • \u7816\u7ea2 156,102,31 0x9C661F<\/li>\n
  • \u9999\u8549\u9ec4 227,207,87 0xE3CF57<\/li>\n
  • \u73ca\u745a\u7ea2 255,127,80 0xFF7F50<\/li>\n
  • \u91d1\u9ec4 255,215,0 0xFFD700<\/li>\n
  • \u756a\u8304\u7ea2 255,99,71 0xFF6347<\/li>\n
  • \u8089\u9ec4 255,125,64 0xFF7D40<\/li>\n
  • \u7c89\u7ea2 255,192,203 0xFFC0CB<\/li>\n
  • \u7c89\u9ec4 255,227,132 0xFFE384<\/li>\n
  • \u5370\u5ea6\u7ea2 176,23,31 0xB0171F<\/li>\n
  • \u6a58\u9ec4 255,128,0 0xFF8000<\/li>\n
  • \u6df1\u7ea2 255,0,255 0xFF00FF<\/li>\n
  • \u841d\u535c\u9ec4 237,145,33 0xED9121<\/li>\n
  • \u9ed1\u7ea2 116,0,0 0x990033<\/li>\n
  • \u9ed1\u9ec4 85,102,0 0x8B864E<\/li>\n
  • \u7eff\u8272 0,255,0 0x00FF00<\/li>\n
  • \u68d5\u8272 128,42,42 0x802A2A<\/li>\n
  • \u9752\u8272 0,255,255 0x00FFFF<\/li>\n
  • \u571f\u8272 199,97,20 0xC76114<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
    \u521a\u4e0a\u624b\u4e00\u5757 TFT \u5c4f\uff0c\u4f7f\u7528 Arduino \u63a7\u5236\uff0c\u5728\u770b Adafruit-ST7735-Library \u5e93\u7684 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[1,603],"tags":[],"class_list":["post-12867","post","type-post","status-publish","format-standard","hentry","category-all","category-arduino"],"modified_by":"IYATT-yx","_links":{"self":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/12867","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12867"}],"version-history":[{"count":0,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/12867\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}