{"id":548,"date":"2022-12-21T20:08:31","date_gmt":"2022-12-21T12:08:31","guid":{"rendered":"http:\/\/www.huangrongzhen.ink\/?p=548"},"modified":"2023-03-04T19:46:24","modified_gmt":"2023-03-04T11:46:24","slug":"%e5%8d%95%e7%89%87%e6%9c%ba-gui-%e8%ae%be%e8%ae%a1%ef%bc%88%e5%9b%9b%ef%bc%89-%e6%98%be%e7%a4%ba%e5%9b%be%e7%89%87","status":"publish","type":"post","link":"https:\/\/www.huangrongzhen.ink\/?p=548","title":{"rendered":"\u5355\u7247\u673a GUI \u8bbe\u8ba1\uff08\u56db\uff09- \u663e\u793a\u56fe\u7247"},"content":{"rendered":"

\u57fa\u4e8e GD32F303ZET6 \u82f9\u679c\u6d3e\u5f00\u53d1\u677f <\/p><\/div>\n\n\n

<\/span>\u7b80\u4ecb<\/span><\/h2>\n\n\n\n

\u5728 GUI \u8bbe\u8ba1\u4e2d\uff0c\u56fe\u7247\u5f88\u91cd\u8981\uff0c\u6beb\u4e0d\u5938\u5f20\u7684\u8bf4\uff0cGUI \u8bbe\u8ba1\u5c31\u662f\u4e00\u4e2a\u8d34\u56fe\u7684\u8fc7\u7a0b\u3002\u60f3\u8981\u5236\u4f5c\u51fa\u4e00\u4e2a\u597d\u770b\u3001\u4f7f\u7528\u7684\u754c\u9762\uff0c\u8d34\u56fe\u5fc5\u4e0d\u53ef\u5c11\u3002\u6211\u4eec\u53ef\u4ee5\u7528\u56fe\u7247\u6765\u88c5\u9970\u5404\u79cd\u63a7\u4ef6\uff0c\u8ba9\u5b83\u4eec\u770b\u8d77\u6765\u4e0d\u662f\u90a3\u4e48\u6b7b\u677f\u3002\u5982\u6b64\u4e00\u6765\uff0c\u505a\u754c\u9762\u8bbe\u8ba1\u7684\u65f6\u5019\uff0c\u6211\u4eec\u53ef\u4ee5\u5148\u5728 PPT \u4e0a\u63cf\u7ed8\u51fa\u754c\u9762\uff0c\u505a\u51fa\u6700\u7ec8\u7684\u6548\u679c\uff0c\u7136\u540e\u518d\u5c06 PPT \u4e2d\u4e00\u4e9b\u5173\u952e\u90e8\u5206\uff0c\u4f8b\u5982\u80cc\u666f\u3001\u5c0f\u90e8\u4ef6\u7b49\u7b49\uff0c\u5bfc\u51fa\u56fe\u7247\uff0c\u6700\u7ec8\u5728\u5355\u7247\u673a\u4e0a\u663e\u793a\u51fa\u6765\u3002\u56fe\u7247\u7684\u5f15\u5165\u6781\u5927\u65b9\u4fbf\u4e86\u6211\u4eec\u7684 GUI \u8bbe\u8ba1\uff0c\u672c\u7ae0\u4e2d\u5c06\u4f1a\u4ecb\u7ecd GUI \u8bbe\u8ba1\u5e38\u7528\u7684\u56fe\u7247\u683c\u5f0f\uff0c\u4ee5\u53ca\u56fe\u7247\u5982\u4f55\u89e3\u7801\u3002<\/p>\n\n\n\n

<\/span>\u4f4d\u56fe\u7b80\u4ecb<\/span><\/h2>\n\n\n\n

\u4f4d\u56fe\uff0c\u5373 BMP \u56fe\u7247\uff0c\u6587\u4ef6\u540e\u7f00\u4e3a “.bmp”\uff0c\u662f\u4e00\u79cd\u65e0\u538b\u7f29\u6587\u4ef6\uff0c\u5728\u5355\u7247\u673a\u4e2d\u5e94\u7528\u5e7f\u6cdb\u3002\u4f4d\u56fe\u6587\u4ef6\u91cc\u4fdd\u5b58\u4e86\u672a\u7ecf\u538b\u7f29\u7684\u50cf\u7d20\u70b9\u6570\u636e\uff0c\u5355\u7247\u673a\u53ef\u4ee5\u76f4\u63a5\u663e\u793a\u3002\u4e00\u4e9b\u9ad8\u7aef\u7684\u5fae\u5904\u7406\u5668\uff0c\u4f8b\u5982 GD32F450\/470 \u3001GD32F429 \u7cfb\u5217\u5185\u7f6e\u4e86\u786c\u4ef6\u5237\u56fe\u6a21\u5757\uff0c\u53ef\u4ee5\u4e00\u952e\u89e3\u7801\u663e\u793a\u4f4d\u56fe\uff0c\u901f\u5ea6\u975e\u5e38\u5feb\u3002<\/p>\n\n\n\n

\u5e38\u7528\u7684\u4f4d\u56fe\u6709 32 \u4f4d\u548c 24 \u4f4d\u7684\u300232 \u4f4d\u4f4d\u56fe\u50cf\u7d20\u70b9\u683c\u5f0f\u4e3a ARGB8888\uff0c\u5305\u542b\u4e86\u900f\u660e\u5ea6\u4fe1\u606f\uff0c\u9002\u5408\u90e8\u7f72\u5728\u5f62\u72b6\u4e0d\u89c4\u5219\u5c0f\u90e8\u4ef6\u4e0a\u3002\u5f15\u5165\u900f\u660e\u5ea6\u540e\uff0c\u53ef\u4ee5\u5229\u7528\u900f\u660e\u5ea6\u53e0\u52a0\u7b97\u6cd5\u5c06\u5c0f\u90e8\u4ef6\u4e0e\u80cc\u666f\u5b8c\u7f8e\u878d\u5408\u5230\u4e00\u8d77\u300224 \u4f4d\u4f4d\u56fe\u50cf\u7d20\u70b9\u683c\u5f0f\u4e3a RGB888\uff0c\u4e0d\u542b\u900f\u660e\u5ea6\u4fe1\u606f\uff0c\u9002\u5408\u90e8\u7f72\u5728\u77e9\u5f62\u65b9\u5757\u4e0a\uff0c\u53c8\u6216\u8005\u662f\u80cc\u666f\u56fe\u7247\u3002<\/p>\n\n\n\n

<\/span>JPEG \u7b80\u4ecb<\/span><\/h2>\n\n\n\n

JPEG \u56fe\u7247\u662f\u4e00\u79cd\u6709\u635f\u538b\u7f29\u6587\u4ef6\uff0c\u540e\u7f00\u4e3a “.jpg” \u6216 “.jpeg”\uff0c\u5e38\u7528\u4e8e\u663e\u793a\u80cc\u666f\u56fe\u7247\u548c\u88c5\u9970\u4e00\u4e9b\u77e9\u5f62\u65b9\u5757\u3002\u5047\u5b9a\u5c4f\u5e55\u7684\u5c3a\u5bf8\u4e3a 800×480\uff0c\u5982\u679c\u4f7f\u7528 24 \u4f4d\u7684\u4f4d\u56fe\u505a\u4e3a\u80cc\u666f\u56fe\u7247\u7684\u8bdd\uff0c\u56e0\u4e3a\u4f4d\u56fe\u662f\u65e0\u538b\u7f29\u6587\u4ef6\u6240\u6d88\u8017\u7684\u5185\u5b58\u63a7\u4ef6\u81f3\u5c11\u4e3a 800x480x2 = 768000 \u5b57\u8282\uff0c\u5373 750k \u5b57\u8282\u3002\u6839\u636e\u6570\u636e\u624b\u518c\uff0cGD32F303ZET6 \u7684 Flash \u624d 512k \u5b57\u8282\uff0c\u8fde\u5f20\u80cc\u666f\u56fe\u7247\u90fd\u5b58\u4e0d\u4e0b\uff0c\u6b64\u65f6\u5fc5\u987b\u8981\u6dfb\u52a0 SPI Flash\u3001SD \u5361\u6216 Nand Flash \u7b49\u5b58\u50a8\u8bbe\u5907\u4fdd\u5b58\u56fe\u7247\uff0c\u8fd9\u65e0\u7591\u589e\u52a0\u4e86\u6210\u672c\u3002JPEG \u56fe\u7247\u662f\u7ecf\u8fc7\u538b\u7f29\u7684\uff0c\u5982\u679c\u80cc\u666f\u56fe\u7247\u6bd4\u8f83\u5355\u8c03\uff0c\u7ecf\u8fc7\u538b\u7f29\u540e\uff0c800×480 \u7684\u56fe\u7247\u53ef\u80fd\u4f1a\u88ab\u538b\u7f29\u5230 20k \u4e0d\u5230\uff0c\u5355\u7247\u673a\u7684 Flash \u5b8c\u5168\u5b58\u5f97\u4e0b\u3002JPEG \u7684\u7279\u70b9\u662f\u56fe\u7247\u8d8a\u5355\u8c03\uff0c\u538b\u7f29\u540e\u5360\u636e\u7684\u5185\u5b58\u8d8a\u5c0f\u3002<\/p>\n\n\n\n

JPEG \u56fe\u7247\u4e0d\u542b\u900f\u660e\u5ea6\u4fe1\u606f\uff0c\u6240\u4ee5\u53ea\u9002\u5408\u505a\u4e3a\u80cc\u666f\u56fe\u7247\u6216\u4e00\u4e9b\u77e9\u5f62\u7a97\u53e3\u663e\u793a\u3002\u5728\u5355\u7247\u673a\u4e2d\u53ef\u4ee5\u4f7f\u7528 TJpgDec \u8f7b\u677e\u89e3\u7801\uff0c\u89e3\u7801\u540e\u5f97\u5230\u7684\u5c31\u662f RGB565 \u683c\u5f0f\u7684\u50cf\u7d20\u70b9\u6570\u636e\uff0c\u65e0\u9700\u8f6c\u6362\u5373\u53ef\u586b\u5145\u5230\u5c4f\u5e55\u4e0a\u663e\u793a\u3002<\/p>\n\n\n\n

\u56e0\u4e3a JPEG \u91c7\u7528\u7684\u662f\u6709\u635f\u538b\u7f29\uff0c\u6240\u4ee5\u6700\u7ec8\u663e\u793a\u51fa\u6765\u7684\u56fe\u6848\u8981\u6a21\u7cca\u4e00\u4e9b\u3002<\/p>\n\n\n\n

<\/span>PNG \u56fe\u7247<\/span><\/h2>\n\n\n\n

PNG \u56fe\u7247\u7684\u538b\u7f29\u7387\u6bd4 JPEG \u56fe\u7247\u9ad8\uff0c\u5373\u540c\u4e00\u5f20\u56fe\u7247\uff0c\u7ecf\u8fc7 PNG \u538b\u7f29\u540e\u5360\u636e\u7684\u5185\u5b58\u7a7a\u95f4\u6bd4 JPEG \u5c0f\uff0c\u800c\u4e14 PNG \u91c7\u7528\u7684\u662f\u65e0\u635f\u538b\u7f29\u65b9\u6848\uff0c\u89e3\u7801\u540e\u4e0d\u4f1a\u9020\u6210\u56fe\u6848\u6a21\u7cca\u3002PNG \u56fe\u7247\u8fd8\u652f\u6301\u900f\u660e\u5ea6\uff0c\u53ef\u4ee5\u5b9e\u73b0 32 \u4f4d\u4f4d\u56fe\u4e00\u6837\u7684\u6548\u679c\u3002 \u5355\u7247\u673a\u4e2d\u53ef\u4ee5\u4f7f\u7528 lodepng \u5bf9 PNG \u56fe\u7247\u89e3\u7801\uff0c\u4f46\u901f\u5ea6\u4e0a\u8981\u6162\u4e00\u4e9b\u3002\u4e00\u4e9b\u5e26\u6709 GPU \u7684\u5fae\u5904\u7406\u5668\u53ef\u4ee5\u4e00\u952e\u89e3\u7801 PNG \u548c JPEG \u56fe\u7247\uff0c\u53ea\u53ef\u60dc\u6211\u4eec\u7684 GD32F303ZET6 \u5e76\u4e0d\u652f\u6301\u3002<\/p>\n\n\n\n

<\/span>GIF \u56fe\u7247<\/span><\/h2>\n\n\n\n

GIF \u56fe\u7247\uff0c\u5373\u52a8\u56fe\uff0c\u53ef\u4ee5\u663e\u793a\u52a8\u753b\u6548\u679c\u3002GIF \u540c\u6837\u4e5f\u652f\u6301\u900f\u660e\u5ea6\uff0c\u5728 GD32F450\/470 \u3001GD32F429 \u7b49\u5904\u7406\u5668\u4e0a\u6709\u826f\u597d\u7684\u663e\u793a\u6548\u679c\uff0c\u4f46 GD32F303ZET6 \u6ca1\u6709\u9488\u5bf9\u56fe\u5f62\u663e\u793a\u7684\u786c\u4ef6\u52a0\u901f\uff0c\u6240\u4ee5\u663e\u793a\u6548\u679c\u4e0d\u5c3d\u4eba\u610f\u3002 <\/p>\n\n\n\n

<\/span>\u56fe\u7247\u7684\u5b58\u50a8<\/span><\/h2>\n\n\n\n

\u5355\u7247\u673a\u7cfb\u7edf\u4e2d\uff0c\u56fe\u7247\u53ef\u4ee5\u4fdd\u5b58\u5230 SPI Flash\u3001SD \u5361\u548c Nand Flash \u7b49\u5b58\u50a8\u4ecb\u8d28\u4e2d\uff0c\u5bf9\u4e8e\u5360\u636e\u5185\u5b58\u5c0f\u7684\u56fe\u7247\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9\u5c06\u56fe\u7247\u4fdd\u5b58\u5230\u5355\u7247\u673a\u5185\u90e8 Flash\u3002\u5982\u679c\u9009\u62e9\u5c06\u56fe\u7247\u4fdd\u5b58\u5230 SPI Flash\u3001SD \u5361\u548c Nand Flash \u7b49\u5b58\u50a8\u4ecb\u8d28\u4e2d\uff0c\u5f88\u5927\u7a0b\u5ea6\u4e0a\u9700\u8981\u5728\u4ee3\u7801\u5de5\u7a0b\u91cc\u52a0\u5165\u4e00\u4e2a\u6587\u4ef6\u7cfb\u7edf\u3002\u6587\u4ef6\u7cfb\u7edf\u6709\u4e2a\u5f88\u5934\u75bc\u7684\u8bdf\u75c5\uff0c\u8bfb\u5199\u901f\u5ea6\u6162\uff0c\u800c\u4e14\u8fd8\u5bb9\u6613\u8bfb\u53d6\u51fa\u9519\uff0c\u8bfb\u53d6\u51fa\u9519\u540e\u53c8\u8981\u91cd\u65b0\u6302\u8f7d\u6587\u4ef6\u7cfb\u7edf\uff0c\u518d\u6b21\u5c1d\u8bd5\u8bfb\u53d6\u6587\u4ef6\uff0c\u5c31\u633a\u70e6\u3002\u5c06\u56fe\u7247\u4fdd\u5b58\u5230\u5355\u7247\u673a\u5185\u90e8 Flash \u540e\uff0c\u5c31\u65e0\u9700\u5728\u7cfb\u7edf\u91cc\u5e03\u7f6e\u4e00\u4e2a\u6587\u4ef6\u7cfb\u7edf\uff0c\u8bfb\u53d6\u901f\u5ea6\u4e5f\u6bd4\u4f7f\u7528\u5916\u90e8\u5b58\u50a8\u4ecb\u8d28\u5feb\u5f97\u591a\uff0c\u9002\u5408\u5e94\u7528\u4e8e\u7b80\u5355\u7684 GUI \u8bbe\u8ba1\u5de5\u7a0b\u3002\u4f7f\u7528\u535a\u4e3b\u63d0\u4f9b\u7684 AnythingToC<\/a> \u5c0f\u5de5\u5177\u53ef\u4ee5\u5f88\u65b9\u4fbf\u7684\u5c06\u4efb\u610f\u6587\u4ef6\u8f6c\u6210 C \u8bed\u8a00\u6570\u7ec4\uff0c\u4ece\u800c\u5c06\u6587\u4ef6\u4ee5\u6570\u7ec4\u7684\u5f62\u5f0f\u4fdd\u5b58\u5230\u5355\u7247\u673a\u4e2d\u3002<\/p>\n\n\n\n

\u5f53\u7136\uff0c\u5982\u679c\u5de5\u7a0b\u91cc\u4f7f\u7528\u5230\u7684\u56fe\u7247\u592a\u591a\uff0cFlash \u5b58\u4e0d\u4e0b\uff0c\u5916\u62d3\u5b58\u50a8\u8bbe\u5907\u662f\u8eb2\u4e0d\u8fc7\u7684\u3002<\/p>\n\n\n\n

<\/span>\u900f\u660e\u5ea6\u53e0\u52a0<\/span><\/h2>\n\n\n\n

\u5f53\u6211\u4eec\u4f7f\u7528 32 \u4f4d\u4f4d\u56fe\u6216 PNG \u56fe\u7247\u663e\u793a\u65f6\uff0c\u5f80\u5f80\u9700\u8981\u4f7f\u7528\u5230\u900f\u660e\u5ea6\u53e0\u52a0\u3002\u4f7f\u7528\u900f\u660e\u5ea6\u53e0\u52a0\u663e\u793a\u7684\u6548\u679c\u4f1a\u66f4\u597d\uff0c\u5f53\u7136\u4e5f\u66f4\u8017\u8d39 CPU \u8d44\u6e90\u3002\u900f\u660e\u5ea6\uff0c\u6709\u65f6\u53c8\u79f0\u4e3a\u4e0d\u900f\u660e\u5ea6\uff0c\u7528\u4e8e\u63cf\u8ff0\u50cf\u7d20\u70b9\u7684\u865a\u5316\u7a0b\u5ea6\u3002\u900f\u660e\u5ea6\u901a\u5e38\u53d6\u503c\u8303\u56f4\u4e3a 0x00 \u5230 0xFF\uff0c\u5373 0 \u5230 255\uff0c0x00 \u8868\u793a\u5b8c\u5168\u900f\u660e\uff0c0xFF \u8868\u793a\u5b8c\u5168\u4e0d\u900f\u660e\u3002<\/p>\n\n\n\n

\u900f\u660e\u5ea6\u53e0\u52a0\u7b97\u6cd5\u5982\u4e0b\u6240\u793a\u3002\u5bf9\u4e8e RGB565\uff0c\u9996\u5148\u9700\u8981\u5c06\u80cc\u666f\u50cf\u7d20\u70b9\u8fd8\u539f\u6210 RGB888\uff0c\u7136\u540e\u624d\u80fd\u8fdb\u884c\u900f\u660e\u5ea6\u53e0\u52a0\u8ba1\u7b97\u3002\u663e\u793a\u5e26\u6709\u900f\u660e\u5ea6\u7684\u56fe\u7247\u65f6\uff0c\u6bcf\u4e2a\u50cf\u7d20\u70b9\u90fd\u8981\u505a\u900f\u660e\u5ea6\u53e0\u52a0\uff0c\u89e3\u7801\u901f\u5ea6\u81ea\u7136\u6162\u5f97\u591a\uff0c\u4f46\u663e\u793a\u6548\u679c\u4f1a\u975e\u5e38\u597d\u3002<\/p>\n\n\n\n

\u6ce8\u610f\uff1abackColor \u4e3a\u80cc\u666f\u989c\u8272\uff0c\u683c\u5f0f\u4e3a RGB565\uff1br\u3001g\u3001b \u4e3a\u524d\u666f\u989c\u8272\u7684 R\u3001G\u3001B \u5206\u91cf\uff0c\u683c\u5f0f\u4e3a RGB888\uff1balpha \u8868\u793a\u900f\u660e\u5ea6\uff0c\u8303\u56f4\u4e3a 0x00~0xFF\u3002<\/p>\n\n\n\n

u16 CalcAlphaRGB565(u16 backColor, u8 r, u8 g, u8 b, u8 alpha)\n{\n  u16 backR, backG, backB, foreR, foreG, foreB, colorAlpha;\n  u16 resultR, resultG, resultB;\n  u16 result;\n\n  \/\/\u900f\u660e\u5ea6\u592a\u5c0f\uff0c\u76f4\u63a5\u8fd4\u56de\u80cc\u666f\u8272\n  if(alpha < 5)\n  {\n    return backColor;\n  }\n\n  \/\/\u63d0\u524d\u80cc\u666fRGB\u901a\u9053\u6570\u636e\n  backR = ((backColor >> 11) & 0x1F);\n  backG = ((backColor >> 5 ) & 0x3F);\n  backB = ((backColor >> 0 ) & 0x1F);\n\n  \/\/\u63d0\u53d6\u524d\u666fRGB\u901a\u9053\u6570\u636e\n  foreR = r >> 3;\n  foreG = g >> 2;\n  foreB = b >> 3;\n\n  \/\/\u83b7\u53d6\u900f\u660e\u5ea6\n  colorAlpha = alpha;\n\n  \/\/RGB\u901a\u9053\u900f\u660e\u5ea6\u53e0\u52a0\n  resultR = (foreR * colorAlpha + backR * (0xFF - colorAlpha)) >> 8;\n  resultG = (foreG * colorAlpha + backG * (0xFF - colorAlpha)) >> 8;\n  resultB = (foreB * colorAlpha + backB * (0xFF - colorAlpha)) >> 8;\n\n  \/\/\u7ec4\u5408\u6210RGB565\u683c\u5f0f\n  result = (((u16)resultR) << 11) | (((u16)resultG) << 5) | (((u16)resultB) << 0);\n\n  return result;\n}<\/code><\/pre>\n\n\n\n
<\/span>\u4f4d\u56fe\u89e3\u7801<\/span><\/h2>\n\n\n\n
\u4f4d\u56fe\u652f\u6301\u5f88\u591a\u79cd\u50cf\u7d20\u70b9\u683c\u5f0f\uff0c\u4e0d\u540c\u50cf\u7d20\u70b9\u683c\u5f0f\u7684\u4f4d\u56fe\u6587\u4ef6\u4fe1\u606f\u5934\u7565\u6709\u4e0d\u540c\uff0c\u5728\u6b64\u6211\u4eec\u53ea\u8ba8\u8bba 24 \u4f4d\u300132 \u4f4d\u4f4d\u56fe\u7684\u89e3\u7801\u3002\u5bf9\u4e8e 24 \u4f4d\u548c 32 \u4f4d\u4f4d\u56fe\uff0c\u5b8c\u6574\u7684\u56fe\u7247\u6587\u4ef6\u7531\u6587\u4ef6\u5934\u3001\u4fe1\u606f\u5934\u548c\u6570\u636e\u4f53\u4e09\u5927\u90e8\u5206\u7ec4\u6210\u3002<\/p>\n\n\n\n
\u6587\u4ef6\u5934\u4f4d\u4e8e\u4f4d\u56fe\u6587\u4ef6\u7684\u8d77\u59cb\u4f4d\u7f6e\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u6587\u4ef6\u6807\u5fd7\u3001\u6587\u4ef6\u5927\u5c0f\u4ee5\u53ca\u4f4d\u56fe\u6570\u636e\u7684\u8d77\u59cb\u4f4d\u7f6e\u76f8\u5bf9\u4e8e\u6587\u4ef6\u5934\u7684\u504f\u79fb\u91cf\uff0c\u5982\u4e0b\u6240\u793a\u3002\u5982\u679c\u4e8b\u5148\u77e5\u9053\u4e86\u56fe\u7247\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u76f4\u63a5\u4ece\u6587\u4ef6\u5934\u8df3\u8f6c\u5230\u6570\u636e\u4f53\uff0c\u5373\u50cf\u7d20\u70b9\u6570\u636e\u6240\u5728\u4f4d\u7f6e\uff0c\u5f00\u59cb\u89e3\u7801\u663e\u793a\u3002\u4f4d\u56fe\u6587\u4ef6\u5934\u56fa\u5b9a\u4e3a 14 \u4e2a\u5b57\u8282\u3002<\/p>\n\n\n\n
\/\/BMP \u6587\u4ef6\u5934\ntypedef __packed struct\n{\n  u16 type;      \/\/\u6587\u4ef6\u6807\u5fd7\uff0c\u53ea\u4e3a'BM'\uff0c\u5fc5\u987b\u662fBM\uff0c\u5341\u516d\u8fdb\u5236\u4e2d\u5219\u662f 0x424D\uff1b\n  u32 size;      \/\/\u6587\u4ef6\u5927\u5c0f\uff0c\u5355\u4f4d\u4e3a\u5b57\u8282\n  u16 reserved1; \/\/\u4fdd\u7559\uff0c\u5fc5\u987b\u4e3a 0\n  u16 reserved2; \/\/\u4fdd\u7559\uff0c\u5fc5\u987b\u4e3a 0\n  u32 offBits;   \/\/\u4f4d\u56fe\u6570\u636e\u7684\u8d77\u59cb\u4f4d\u7f6e\u76f8\u5bf9\u4e8e\u6587\u4ef6\u5934\u7684\u504f\u79fb\u91cf\uff0c\u5355\u4f4d\u4e3a\u5b57\u8282\u3002\n}StructBmpFileHeader;<\/code><\/pre>\n\n\n\n
\u6587\u4ef6\u5934\u7d27\u6328\u7740\u7684\u5c31\u662f\u4fe1\u606f\u5934\uff0c\u4fe1\u606f\u5934\u5305\u542b\u4e86\u4f4d\u56fe\u7684\u5177\u4f53\u4fe1\u606f\uff0c\u4f8b\u5982\u957f\u5ea6\u3001\u5bbd\u5ea6\u3001\u50cf\u7d20\u70b9\u683c\u5f0f\u7b49\u7b49\uff0c\u5982\u4e0b\u6240\u793a\u3002\u4fe1\u606f\u5934\u56fa\u5b9a 40 \u4e2a\u5b57\u8282\u3002<\/p>\n\n\n\n
\u6587\u4ef6\u5934\u548c\u4fe1\u606f\u5934\u957f\u5ea6\u603b\u548c\u4e3a 54 \u4e2a\u5b57\u8282\uff0c\u518d\u5f80\u540e\u4fbf\u662f\u50cf\u7d20\u70b9\u6570\u636e\uff0c\u5360\u636e\u4e86\u4f4d\u56fe\u6587\u4ef6\u7edd\u5927\u591a\u6570\u5185\u5b58\u7a7a\u95f4\u3002\u5bf9\u4e8e 24 \u4f4d\u4f4d\u56fe\u56fe\u7247\uff0c\u50cf\u7d20\u70b9\u6570\u636e\u6309\u7167 BGR\uff0c\u6ce8\u610f\u4e0d\u662f RGB\uff0c\u987a\u5e8f\u6392\u5217\uff0c\u4e00\u4e2a\u50cf\u7d20\u70b9\u5360\u636e 3 \u5b57\u8282\u5185\u5b58\u7a7a\u95f4\uff1b\u5bf9\u4e8e 32 \u4f4d\u4f4d\u56fe\u56fe\u7247\uff0c\u50cf\u7d20\u70b9\u6570\u636e\u6309\u7167 BGRA \u6392\u5217\uff0c\u4e00\u4e2a\u50cf\u7d20\u70b9\u5360\u636e 4 \u4e2a\u5b57\u8282\u5185\u5b58\u7a7a\u95f4\u3002<\/p>\n\n\n\n
\/\/BMP\u4fe1\u606f\u5934\ntypedef __packed struct\n{\n  u32 infoSize;       \/\/\u8be5\u7ed3\u6784\u4f53\u6240\u9700\u7684\u5b57\u8282\u6570\n  u32 width;          \/\/\u4f4d\u56fe\u7684\u5bbd\u5ea6\uff08\u50cf\u7d20\u5355\u4f4d\uff09\n  u32 height;         \/\/\u4f4d\u56fe\u7684\u9ad8\u5ea6\uff08\u50cf\u7d20\u5355\u4f4d\uff09\n  u16 planes;         \/\/\u76ee\u6807\u8bbe\u5907\u7684\u7ea7\u522b\uff0c\u5fc5\u987b\u4e3a1\n  u16 colorSize;      \/\/\u6bcf\u4e2a\u50cf\u7d20\u6240\u9700\u7684\u4f4d\u6570\n  u32 compression;    \/\/\u8bf4\u660e\u56fe\u8c61\u6570\u636e\u538b\u7f29\u7684\u7c7b\u578b\uff0c\u4f4d\u56fe\u538b\u7f29\u7c7b\u578b\uff0c\u5fc5\u987b\u662f 0\uff08\u4e0d\u538b\u7f29\uff09\n  u32 imageSize;      \/\/\u4f4d\u56fe\u7684\u5927\u5c0f(\u5176\u4e2d\u5305\u542b\u4e86\u4e3a\u4e86\u8865\u9f50\u884c\u6570\u662f4\u7684\u500d\u6570\u800c\u6dfb\u52a0\u7684\u7a7a\u5b57\u8282)\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\n  u32 xPelsPerMeter;  \/\/\u4f4d\u56fe\u6c34\u5e73\u5206\u8fa8\u7387\uff0c\u6bcf\u7c73\u50cf\u7d20\u6570\n  u32 yPelsPerMeter;  \/\/\u4f4d\u56fe\u5782\u76f4\u5206\u8fa8\u7387\uff0c\u6bcf\u7c73\u50cf\u7d20\u6570\n  u32 colorUsed;      \/\/\u4f4d\u56fe\u5b9e\u9645\u4f7f\u7528\u7684\u989c\u8272\u8868\u4e2d\u7684\u989c\u8272\u6570\n  u32 colorImportant; \/\/\u4f4d\u56fe\u663e\u793a\u8fc7\u7a0b\u4e2d\u91cd\u8981\u7684\u989c\u8272\u6570\uff0c\u5982\u679c\u662f 0\uff0c\u8868\u793a\u90fd\u91cd\u8981\n}StructBmpInfoHeader;<\/code><\/pre>\n\n\n\n
\u4f4d\u56fe\u6587\u4ef6\u9ed8\u8ba4\u6309\u4ece\u5de6\u5f80\u53f3\uff0c\u4ece\u4e0b\u5f80\u4e0a<\/strong>\uff0c\u6309\u884c\u50a8\u5b58\u6570\u636e\uff0c\u5982\u679c 1 \u884c\u50cf\u7d20\u70b9\u6570\u636e\u6240\u5360\u636e\u7684\u5185\u5b58\u7a7a\u95f4\u4e0d\u6ee1\u8db3 4 \u5b57\u8282\u5bf9\u9f50\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u8865\u96f6\u3002<\/p>\n\n\n\n
\u7b80\u5355\u7684\u4f4d\u56fe\u663e\u793a\u9a71\u52a8\u5982\u4e0b\u6240\u793a\uff0c\u5047\u5b9a\u8be5\u56fe\u7247\u50a8\u5b58\u5728 Flash \u4e2d\u3002\u5982\u679c\u56fe\u7247\u662f\u50a8\u5b58\u5728\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\uff0c\u90a3\u4e48\u53ef\u4ee5\u9009\u62e9\u5c06\u6574\u4e2a\u6587\u4ef6\u5747\u8bfb\u5165\u5185\u5b58\u4e2d\uff0c\u53ef\u4ee5\u662f\u5916\u62d3 SRAM\/SDRAM\uff0c\u518d\u663e\u793a\u3002<\/p>\n\n\n\n
#include \"LCD.h\"\n\nvoid DrawBMP(unsigned char* img, int x, int y)\n{\n  StructBmpFileHeader* fileHeader; \/\/\u6587\u4ef6\u5934\n  StructBmpInfoHeader* infoHeader; \/\/\u4fe1\u606f\u5934\n  int x0, y0, x1, y1, width, height, readCnt;\n  unsigned char* data;\n  unsigned int a, r, g, b;\n  unsigned short color, backgroung;\n\n  \/\/\u83b7\u53d6\u56fe\u7247\u5bbd\u5ea6\u548c\u9ad8\u5ea6\n  infoHeader = (StructBmpInfoHeader*)(img + 14);\n  width = infoHeader->width;\n  height = infoHeader->height;\n\n  \/\/\u8ba1\u7b97\u8d77\u70b9\u548c\u7ec8\u70b9\n  x0 = x;\n  y0 = y;\n  x1 = x0 + width - 1;\n  y1 = y0 + height - 1;\n\n  \/\/\u83b7\u53d6\u50cf\u7d20\u70b9\u6570\u636e\u8d77\u59cb\u4f4d\u7f6e\n  fileHeader = (StructBmpFileHeader*)img;\n  data = img + fileHeader->offBits;\n  readCnt = 0;\n  \n  \/\/24 \u4f4d\u4f4d\u56fe\u89e3\u7801\n  if(24 == infoHeader->colorSize)\n  {\n    \/\/\u6309\u884c\u663e\u793a\n    for(y = y1; y >= y0; y--)\n    {\n      \/\/\u4e00\u4e2a\u4e00\u4e2a\u50cf\u7d20\u70b9\u663e\u793a\n      for(x = x0; x <= x1; x++)\n      {\n        \/\/\u83b7\u53d6\u50cf\u7d20\u70b9\u6570\u636e\uff0c\u53f3\u79fb\u662f\u4e3a\u4e86\u65b9\u4fbf\u540e\u7eed\u8f6c\u6210 RGB565 \u683c\u5f0f\n        b = data[readCnt++] >> 3; \/\/\u84dd\u8272\n        g = data[readCnt++] >> 2; \/\/\u7eff\u8272\n        r = data[readCnt++] >> 3; \/\/\u7ea2\u8272\n\n        \/\/RGB888 \u8f6c RGB565\n        color = ((r << 11) | (g << 5) | (b << 0));\n\n        \/\/\u6ca1\u6709\u900f\u660e\u5ea6\u4fe1\u606f\uff0c\u76f4\u63a5\u8986\u76d6\u663e\u793a\n        LCDFastDrawPoint(x, y, color);\n      }\n\n      \/\/\u663e\u793a\u5b8c\u4e00\u884c\u540e\u8981\u505a 4 \u5b57\u8282\u5bf9\u9f50\n      while(0 != (readCnt % 4))\n      {\n        readCnt++;\n      }\n    }\n  }\n\n  \/\/32 \u4f4d\u4f4d\u56fe\u89e3\u7801\n  else if(32 == infoHeader->colorSize)\n  {\n    \/\/\u6309\u884c\u663e\u793a\n    for(y = y1; y >= y0; y--)\n    {\n      \/\/\u4e00\u4e2a\u4e00\u4e2a\u50cf\u7d20\u70b9\u663e\u793a\n      for(x = x0; x <= x1; x++)\n      {\n        \/\/\u83b7\u53d6\u50cf\u7d20\u70b9\u6570\u636e\n        b = data[readCnt++]; \/\/\u84dd\u8272\n        g = data[readCnt++]; \/\/\u7eff\u8272\n        r = data[readCnt++]; \/\/\u7ea2\u8272\n        a = data[readCnt++]; \/\/\u900f\u660e\u5ea6\n\n        \/\/\u8bfb\u53d6\u80cc\u666f\u989c\u8272\n        backgroung = LCDReadPoint(x, y);\n\n        \/\/\u900f\u660e\u5ea6\u53e0\u52a0\n        color = CalcAlphaRGB565(backgroung, r, g, b, a);\n\n        \/\/\u663e\u793a\n        LCDFastDrawPoint(x, y, color);\n      }\n    }\n  }\n}<\/code><\/pre>\n\n\n\n
<\/span>JPEG \u56fe\u7247\u89e3\u7801<\/span><\/h2>\n\n\n\n
\u5355\u7247\u673a\u4e2d\u53ef\u4ee5\u7528 TJpgDec \u8f7b\u677e\u89e3\u7801 JPEG \u56fe\u7247\uff0cTJpgDec \u5c06 JPEG \u89e3\u7801\u540e\u751f\u6210 RGB888\/RGB565 \u683c\u5f0f\u7684\u50cf\u7d20\u70b9\u6570\u636e\uff0c\u53ef\u4ee5\u4e0d\u7528\u505a\u4efb\u4f55\u8f6c\u6362\u76f4\u63a5\u5bfc\u5165\u5c4f\u5e55\u663e\u793a\u3002<\/p>\n\n\n\n
<\/span>TJpgDec \u6587\u4ef6\u7ec4\u6210<\/span><\/h3>\n\n\n\n
TJpgDec \u603b\u5171\u6709\u4e09\u4e2a\u6587\u4ef6\uff0c\u5206\u522b\u662f integer.h\u3001tjpgd.h \u548c tjpgd.c\u3002integer.h \u7528\u4e8e\u53d8\u91cf\u7c7b\u578b\u58f0\u660e\uff0c\u65b9\u4fbf\u4e0d\u540c\u5e73\u53f0\u95f4\u79fb\u690d\uff0ctjpgd.h \u548c tjpgd.c \u5219\u8d1f\u8d23\u89e3\u7801 JPEG \u56fe\u7247\u3002\u8fd9\u4e09\u4e2a\u6587\u4ef6\u53ef\u4ee5\u5728\u6e90\u7801\u5de5\u7a0b\u91cc\u627e\u5230\u3002<\/p>\n\n\n\n
<\/span>TJpgDec \u914d\u7f6e<\/span><\/h3>\n\n\n\n
TJpgDec \u53ef\u4ee5\u901a\u8fc7\u4fee\u6539 tjpgd.h \u4e2d\u7684\u5b8f\u5b9a\u4e49\u6765\u914d\u7f6e\uff0c\u4f8b\u5982\u5c06 JD_FORMAT \u5b9a\u4e49\u4e3a 1 \u53ef\u4f7f\u80fd\u89e3\u7801\u8f93\u51fa RGB565\uff0c\u5b9a\u4e49\u4e3a 0 \u53ef\u4f7f\u80fd\u89e3\u7801\u8f93\u51fa RGB888\uff0c\u5982\u4e0b\u6240\u793a\u3002\u5176\u5b83\u5b8f\u5b9a\u4e49\u6682\u65f6\u4e0d\u6e05\u695a\u4ec0\u4e48\u4f5c\u7528\uff0c\u4fdd\u7559\u539f\u6765\u7684\u914d\u7f6e\u5c31\u597d\u3002<\/p>\n\n\n\n
#define\tJD_SZBUF      1024  \/* Size of stream input buffer *\/\n#define JD_FORMAT     1     \/* Output pixel format 0:RGB888 (3 BYTE\/pix), 1:RGB565 (1 WORD\/pix) *\/\n#define\tJD_USE_SCALE  1     \/* Use descaling feature for output *\/\n#define JD_TBLCLIP    1     \/* Use table for saturation (might be a bit faster but increases 1K bytes of code size) *\/<\/code><\/pre>\n\n\n\n
<\/span>TJpgDec \u7684\u4f7f\u7528<\/span><\/h3>\n\n\n\n
TJpgDec \u7684\u5de5\u4f5c\u9700\u8981\u4e00\u4e2a\u6700\u5c11 3092 \u5b57\u8282\u7684\u5de5\u4f5c\u533a\uff0c\u51d1\u4e2a\u6574\uff0c\u5728\u8fd9\u91cc\u6211\u4eec\u53d6 4k \u5b57\u8282\uff1b\u540c\u65f6\uff0cTJpgDec \u8fd8\u9700\u8981\u4e24\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u5206\u522b\u7528\u4e8e\u6570\u636e\u8f93\u51fa\u548c\u50cf\u7d20\u70b9\u8f93\u51fa\uff0c\u5177\u4f53\u4f7f\u7528\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n
#include \"tjpgd.h\"\n\n\/\/\u7f13\u51b2\u533a\u5927\u5c0f\u5b9a\u4e49\n#define JPEG_BUF_SIZE 4096\n\n\/\/\u5b9a\u4e49jpeg\u89e3\u7801\u5de5\u4f5c\u533a\u5927\u5c0f(\u6700\u5c11\u9700\u89813092\u5b57\u8282)\uff0c\u4f5c\u4e3a\u89e3\u538b\u7f13\u51b2\u533a\uff0c\u5fc5\u987b4\u5b57\u8282\u5bf9\u9f50\n__align(4) unsigned char s_arrJpegWorkBuf[JPEG_BUF_SIZE];\n\n\/\/\u5176\u5b83\u9759\u6001\u53d8\u91cf\nstatic u32 s_iX0, s_iY0, s_iReadCnt;\nstatic unsigned char* s_iImage;\n\n\/\/jpeg \u6570\u636e\u8f93\u5165\u56de\u8c03\u51fd\u6570\n\/\/jd : \u50a8\u5b58\u5f85\u89e3\u7801\u7684\u5bf9\u8c61\u4fe1\u606f\u7684\u7ed3\u6784\u4f53\n\/\/buf: \u8f93\u5165\u6570\u636e\u7f13\u51b2\u533a (NULL:\u6267\u884c\u5730\u5740\u504f\u79fb)\n\/\/num: \u9700\u8981\u4ece\u8f93\u5165\u6570\u636e\u6d41\u8bfb\u51fa\u7684\u6570\u636e\u91cf\/\u5730\u5740\u504f\u79fb\u91cf\nstatic u32 JpegInfunc(JDEC* jd, u8* buf, u32 num) \n{\n  unsigned int i;   \/\/\u5faa\u73af\u53d8\u91cf\n  unsigned int rb;  \/\/\u8fd4\u56de\u503c\n\n  \/\/buf\u975e\u7a7a\u8868\u793aTJpgDec\u6a21\u5757\u8981\u8bfb\u53d6\u56fe\u7247\u6570\u636e\n  if(NULL != buf)\n  {\n    rb = 0;\n    for(i = 0; i < num; i++)\n    {\n      buf[i] = s_pImage[s_iReadCnt++];\n      rb++;\n    }\n  }\n\n  \/\/buf\u4e3a\u7a7a\u8868\u793aTJpgDec\u6a21\u5757\u8981\u8c03\u6574\u8bfb\u53d6\u4f4d\u7f6e\n  else\n  {\n    s_iReadCnt = s_iReadCnt + num;\n    rb = num;\n  }\n\n  return rb;\n}\n\n\/\/jpeg    \u6570\u636e\u8f93\u51fa\u56de\u8c03\u51fd\u6570\n\/\/jd     :\u50a8\u5b58\u5f85\u89e3\u7801\u7684\u5bf9\u8c61\u4fe1\u606f\u7684\u7ed3\u6784\u4f53\n\/\/rgbbuf :\u6307\u5411\u7b49\u5f85\u8f93\u51fa\u7684RGB\u4f4d\u56fe\u6570\u636e\u7684\u6307\u9488\n\/\/rect   :\u7b49\u5f85\u8f93\u51fa\u7684\u77e9\u5f62\u56fe\u50cf\u7684\u53c2\u6570\n\/\/\u8fd4 \u56de \u503c\uff1a0,\u8f93\u51fa\u6210\u529f;1,\u8f93\u51fa\u5931\u8d25\/\u7ed3\u675f\u8f93\u51fa\nstatic u32 JpegOutfunc(JDEC* jd, void* rgbbuf, JRECT* rect) \n{ \n  u16 x0, y0, x1, y1; \/\/\u8d77\u70b9\u3001\u7ec8\u70b9\u5750\u6807\n\n  \/\/\u8ba1\u7b97\u8d77\u70b9\u3001\u7ec8\u70b9\n  x0 = rect->left  + s_iX0;\n  y0 = rect->top   + s_iY0;\n  x1 = rect->right + s_iX0;\n  y1 = rect->bottom + s_iY0;\n\n  \/\/\u586b\u5145LCD\n  LCDColorFill(x0, y0, x1, y1, rgbbuf);\n\n  \/\/\u8fd4\u56de0\u4f7f\u5f97\u6a21\u5757\u7ee7\u7eed\u5de5\u4f5c\n  return 0;\n}\n\n\/\/\u89e3\u7801\u5e76\u663e\u793a JPEG \u56fe\u7247\n\/\/image\uff1a\u56fe\u7247\u9996\u5730\u5740\n\/\/x\u3001y\uff1a\u663e\u793a\u4f4d\u7f6e\n\/\/size\uff1a\u56fe\u7247\u5927\u5c0f\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\nvoid DrawJPEG(unsigned char* image, unsigned int x, unsigned int y, unsigned int size)\n{\n  static JDEC s_structJpegDev;  \/\/JPEG\u89e3\u7801\u8bbe\u5907\u7ed3\u6784\u4f53\n\n  \/\/\u4fdd\u5b58\u56fe\u7247\u9996\u5730\u5740\u548c\u5927\u5c0f\n  s_pImage = image;\n  \n  \/\/\u4fdd\u5b58\u539f\u70b9\u4fe1\u606f\n  s_iX0 = x;\n  s_iY0 = y;\n  \n  \/\/\u6e05\u7a7a\u8bfb\u53d6\u8bb0\u5f55\n  s_iReadCnt = 0;\n\n  \/\/\u89e3\u7801\u5e76\u663e\u793a\n  if(JDR_OK == jd_prepare(&s_structJpegDev, JpegInfunc, s_arrJpegWorkBuf, JPEG_BUF_SIZE, NULL))\n  {\n    jd_decomp(&s_structJpegDev, JpegOutfunc, 0);\n  }\n}<\/code><\/pre>\n\n\n\n
<\/span>PNG \u89e3\u7801<\/span><\/h2>\n\n\n\n
\u5355\u7247\u673a\u4e2d\u53ef\u4ee5\u7528 lodepng \u8f7b\u677e\u5bf9 PNG \u89e3\u7801\uff0c\u89e3\u7801\u540e\u5f97\u5230\u7684\u50cf\u7d20\u70b9\u683c\u5f0f\u4e3a ARGB888\uff0c\u53ef\u663e\u793a\u51fa\u900f\u660e\u6548\u679c\u3002lodepng \u652f\u6301\u76f4\u63a5\u89e3\u7801\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\u56fe\u7247\uff0c\u4e5f\u53ef\u4ee5\u89e3\u7801\u5df2\u8bfb\u53d6\u5230\u5185\u5b58\u4e2d\u7684\u56fe\u7247\u6570\u636e\u3002\u4e0d\u4ec5\u5982\u6b64\uff0clodepng \u8fd8\u652f\u6301 PNG \u7f16\u7801\uff0c\u4e5f\u5c31\u662f\u8bf4\u53ef\u4ee5\u5229\u7528 lodepng \u751f\u6210\u4e00\u5f20 PNG \u56fe\u7247\u3002\u4f7f\u7528 lodepng \u89e3\u7801\u5185\u5b58\u6216 Flash \u4e2d\u7684\u56fe\u7247\u5982\u4e0b\u6240\u793a\u3002\u901a\u8fc7 lodepng_decode32 \u51fd\u6570\u89e3\u7801\u51fa\u6765\u7684\u50cf\u7d20\u70b9\u683c\u5f0f\u4e3a RGBA8888\uff0c\u4e0e 32 \u4f4d\u4f4d\u56fe\u7684 BGRA8888 \u7565\u6709\u4e0d\u540c\u3002\u5982\u679c\u4e0d\u60f3\u8981\u900f\u660e\u5ea6\u4fe1\u606f\uff0c\u4e5f\u53ef\u4f7f\u7528 lodepng_decode24 \u51fd\u6570\uff0c\u5177\u4f53\u8bf7\u770b lodepng \u5b98\u7f51\u8be6\u7ec6\u5b9e\u4f8b\u3002<\/p>\n\n\n\n
\u6ce8\u610f\uff1alodepng \u4f1a\u81ea\u52a8\u4e3a\u8f93\u51fa\u7f13\u51b2\u533a\u7533\u8bf7\u52a8\u6001\u5185\u5b58\uff0c\u56e0\u6b64\u7528\u6237\u6709\u4e49\u52a1\u4e3a\u5176\u91ca\u653e\u5185\u5b58\u3002<\/p>\n\n\n\n
#include \"PNG.h\"\n#include \"PNGImage.h\"\n#include \"lodepng.h\"\n#include \"LCD.h\"\n#include \"stdio.h\"\n\n\/\/image\uff1aPNG \u56fe\u7247\u9996\u5730\u5740\n\/\/ x\u3001y\uff1a\u8d77\u59cb\u5750\u6807\n\/\/size\uff1aPNG \u6587\u4ef6\u5927\u5c0f\uff08\u5b57\u8282\uff09\nvoid DrawPng(unsigned char* image, unsigned int x, unsigned int y, unsigned int size)\n{\n  unsigned char* output;\n  unsigned int width, height, error;\n  unsigned char r, g, b, a;\n  unsigned int x0, y0, x1, y1, readCnt;\n  unsigned short color;\n  \n  \/\/\u89e3\u7801 PNG \u56fe\u7247\n  error = lodepng_decode32(&output, &width, &height, image, size);\n  if(error)\n  {\n    printf(\"Fail to show PNG\\r\\n\");\n    return;\n  }\n\n  \/\/\u663e\u793a\uff0c\u50cf\u7d20\u70b9\u683c\u5f0f\u4e3a RGBA\n  x0 = x;\n  y0 = y;\n  x1 = x0 + width - 1;\n  y1 = y0 + height - 1;\n  readCnt = 0;\n  for(y = y0; y <= y1; y++)\n  {\n    for(x = x0; x <= x1; x++)\n    {\n      \/\/\u83b7\u53d6\u50cf\u7d20\u70b9\u503c\n      r = output[readCnt++];\n      g = output[readCnt++];\n      b = output[readCnt++];\n      a = output[readCnt++];\n      \n      \/\/\u8bfb\u53d6\u80cc\u666f\u50cf\u7d20\u70b9\u503c\n      color = LCDReadPoint(x, y);\n      \n      \/\/\u900f\u660e\u5ea6\u53e0\u52a0\n      color = CalcAlphaRGB565(color, r, g, b, a);\n      \n      \/\/\u663e\u793a\n      LCDFastDrawPoint(x, y, color);\n    }\n  }\n\n  \/\/\u91ca\u653e\u52a8\u6001\u5185\u5b58\n  free(output);\n}<\/code><\/pre>\n\n\n\n
<\/span>GIF \u89e3\u7801<\/span><\/h2>\n\n\n\n
GIF \u89e3\u7801\u6682\u65f6\u4e0d\u4ecb\u7ecd\uff0c\u540e\u8fb9\u6709\u673a\u4f1a\u518d\u8bf4\u3002<\/p>\n\n\n\n
<\/span>\u5b9e\u9a8c\u7ed3\u679c<\/span><\/h2>\n\n\n\n
BMP \u548c PNG \u56fe\u7247\u663e\u793a\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n
JPEG \u56fe\u7247\u663e\u793a\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n
<\/span>\u6e90\u7801<\/span><\/h2>\n\n\n\n
\u672c\u7ae0\u8282\u4e2d\u7684\u6e90\u7801\u8bf7\u53c2\u8003\u300a\u5355\u7247\u673a GUI \u8bbe\u8ba1\uff08\u96f6\uff09- \u5927\u7eb2<\/a><\/em>\u300b<\/p>\n","protected":false},"excerpt":{"rendered":"
\u57fa\u4e8e GD32F303ZET6 \u82f9\u679c\u6d3e\u5f00\u53d1\u677f<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"_links":{"self":[{"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/posts\/548"}],"collection":[{"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=548"}],"version-history":[{"count":62,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/posts\/548\/revisions"}],"predecessor-version":[{"id":1125,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/posts\/548\/revisions\/1125"}],"wp:attachment":[{"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}