jpeg_decode.v

jpeg格式到bmp格式的硬件实现

   wire [15:0]    Hm60Data;
   wire [15:0]    Hm61Data;
   wire [15:0]    Hm62Data;
   wire [15:0]    Hm63Data;

   wire           DctIdle;
   
   jpeg_haffuman u_jpeg_haffuman(
                                 .rst(rst),
                                 .clk(clk),
                                 
                                 // DQT Table
                                 .DqtInEnable ( DqtEnable ),
                                 .DqtInColor  ( DqtTable ),
                                 .DqtInCount  ( DqtCount[5:0] ),
                                 .DqtInData   ( DqtData ),
                                 
                                 // DHT Table
                                 .DhtInEnable ( DhtEnable ),
                                 .DhtInColor  ( DhtTable  ),
                                 .DhtInCount  ( DhtCount  ),
                                 .DhtInData   ( DhtData   ),
                                 
                                 // Haffuman Table   
                                 .HaffumanTableEnable ( HaffumanEnable ),
                                 .HaffumanTableColor  ( HaffumanTable  ),
                                 .HaffumanTableCount  ( HaffumanCount  ),
                                 .HaffumanTableCode   ( HaffumanData   ),
                                 .HaffumanTableStart  ( HaffumanStart  ),
                                 
                                 // Haffuman Decode
                                 .DataInRun      ( ImageEnable    ),
                                 .DataInEnable   ( JpegDataEnable ),
                                 .DataIn         ( JpegData       ),
                                 
                                 // Output decode data   
                                 .DecodeUseBit   ( UseBit       ),
                                 .DecodeUseWidth ( UseWidth     ),
                                 
                                 // Data Out
                                 .DataOutIdle   ( DctIdle     ),
                                 .DataOutEnable ( HmDecEnable ),
                                 .DataOutColor  ( HmDecColor  ),
				 .DataOutSel    ( HmDecSel    ),
                                 .Data00Reg    ( Hm00Data ),
                                 .Data01Reg    ( Hm01Data ),
                                 .Data02Reg    ( Hm02Data ),
                                 .Data03Reg    ( Hm03Data ),
                                 .Data04Reg    ( Hm04Data ),
                                 .Data05Reg    ( Hm05Data ),
                                 .Data06Reg    ( Hm06Data ),
                                 .Data07Reg    ( Hm07Data ),
                                 .Data08Reg    ( Hm08Data ),
                                 .Data09Reg    ( Hm09Data ),
                                 .Data10Reg    ( Hm10Data ),
                                 .Data11Reg    ( Hm11Data ),
                                 .Data12Reg    ( Hm12Data ),
                                 .Data13Reg    ( Hm13Data ),
                                 .Data14Reg    ( Hm14Data ),
                                 .Data15Reg    ( Hm15Data ),
                                 .Data16Reg    ( Hm16Data ),
                                 .Data17Reg    ( Hm17Data ),
                                 .Data18Reg    ( Hm18Data ),
                                 .Data19Reg    ( Hm19Data ),
                                 .Data20Reg    ( Hm20Data ),
                                 .Data21Reg    ( Hm21Data ),
                                 .Data22Reg    ( Hm22Data ),
                                 .Data23Reg    ( Hm23Data ),
                                 .Data24Reg    ( Hm24Data ),
                                 .Data25Reg    ( Hm25Data ),
                                 .Data26Reg    ( Hm26Data ),
                                 .Data27Reg    ( Hm27Data ),
                                 .Data28Reg    ( Hm28Data ),
                                 .Data29Reg    ( Hm29Data ),
                                 .Data30Reg    ( Hm30Data ),
                                 .Data31Reg    ( Hm31Data ),
                                 .Data32Reg    ( Hm32Data ),
                                 .Data33Reg    ( Hm33Data ),
                                 .Data34Reg    ( Hm34Data ),
                                 .Data35Reg    ( Hm35Data ),
                                 .Data36Reg    ( Hm36Data ),
                                 .Data37Reg    ( Hm37Data ),
                                 .Data38Reg    ( Hm38Data ),
                                 .Data39Reg    ( Hm39Data ),
                                 .Data40Reg    ( Hm40Data ),
                                 .Data41Reg    ( Hm41Data ),
                                 .Data42Reg    ( Hm42Data ),
                                 .Data43Reg    ( Hm43Data ),
                                 .Data44Reg    ( Hm44Data ),
                                 .Data45Reg    ( Hm45Data ),
                                 .Data46Reg    ( Hm46Data ),
                                 .Data47Reg    ( Hm47Data ),
                                 .Data48Reg    ( Hm48Data ),
                                 .Data49Reg    ( Hm49Data ),
                                 .Data50Reg    ( Hm50Data ),
                                 .Data51Reg    ( Hm51Data ),
                                 .Data52Reg    ( Hm52Data ),
                                 .Data53Reg    ( Hm53Data ),
                                 .Data54Reg    ( Hm54Data ),
                                 .Data55Reg    ( Hm55Data ),
                                 .Data56Reg    ( Hm56Data ),
                                 .Data57Reg    ( Hm57Data ),
                                 .Data58Reg    ( Hm58Data ),
                                 .Data59Reg    ( Hm59Data ),
                                 .Data60Reg    ( Hm60Data ),
                                 .Data61Reg    ( Hm61Data ),
                                 .Data62Reg    ( Hm62Data ),
                                 .Data63Reg    ( Hm63Data ),
				 .DataOutRelease (HmDecRelase)
                                 );

   wire           DctEnable;
   wire [2:0]     DctColor;
   wire [2:0]     DctPage;
   wire [1:0]     DctCount;
   wire [8:0]     Dct0Data;
   wire [8:0]     Dct1Data;

   wire [15:0]    DctWidth;
   wire [15:0]    DctHeight;
   wire [11:0]    DctBlockX;
   wire [11:0]    DctBlockY;

   wire           YCbCrIdle;
   
   jpeg_idct u_jpeg_idct(
                         .rst(rst),
                         .clk(clk),

                         .DataInEnable( HmDecEnable ),
			 .DataInSel( HmDecSel ),
                         .Data00In( Hm00Data ),
                         .Data01In( Hm01Data ),
                         .Data02In( Hm02Data ),
                         .Data03In( Hm03Data ),
                         .Data04In( Hm04Data ),
                         .Data05In( Hm05Data ),
                         .Data06In( Hm06Data ),
                         .Data07In( Hm07Data ),
                         .Data08In( Hm08Data ),
                         .Data09In( Hm09Data ),
                         .Data10In( Hm10Data ),
                         .Data11In( Hm11Data ),
                         .Data12In( Hm12Data ),
                         .Data13In( Hm13Data ),
                         .Data14In( Hm14Data ),
                         .Data15In( Hm15Data ),
                         .Data16In( Hm16Data ),
                         .Data17In( Hm17Data ),
                         .Data18In( Hm18Data ),
                         .Data19In( Hm19Data ),
                         .Data20In( Hm20Data ),
                         .Data21In( Hm21Data ),
                         .Data22In( Hm22Data ),
                         .Data23In( Hm23Data ),
                         .Data24In( Hm24Data ),
                         .Data25In( Hm25Data ),
                         .Data26In( Hm26Data ),
                         .Data27In( Hm27Data ),
                         .Data28In( Hm28Data ),
                         .Data29In( Hm29Data ),
                         .Data30In( Hm30Data ),
                         .Data31In( Hm31Data ),
                         .Data32In( Hm32Data ),
                         .Data33In( Hm33Data ),
                         .Data34In( Hm34Data ),
                         .Data35In( Hm35Data ),
                         .Data36In( Hm36Data ),
                         .Data37In( Hm37Data ),
                         .Data38In( Hm38Data ),
                         .Data39In( Hm39Data ),
                         .Data40In( Hm40Data ),
                         .Data41In( Hm41Data ),
                         .Data42In( Hm42Data ),
                         .Data43In( Hm43Data ),
                         .Data44In( Hm44Data ),
                         .Data45In( Hm45Data ),
                         .Data46In( Hm46Data ),
                         .Data47In( Hm47Data ),
                         .Data48In( Hm48Data ),
                         .Data49In( Hm49Data ),
                         .Data50In( Hm50Data ),
                         .Data51In( Hm51Data ),
                         .Data52In( Hm52Data ),
                         .Data53In( Hm53Data ),
                         .Data54In( Hm54Data ),
                         .Data55In( Hm55Data ),
                         .Data56In( Hm56Data ),
                         .Data57In( Hm57Data ),
                         .Data58In( Hm58Data ),
                         .Data59In( Hm59Data ),
                         .Data60In( Hm60Data ),
                         .Data61In( Hm61Data ),
                         .Data62In( Hm62Data ),
                         .Data63In( Hm63Data ),
                         .DataInIdle( DctIdle ),
			 .DataInRelease( HmDecRelase ),
                         
                         .DataOutEnable ( DctEnable ),
                         .DataOutPage   ( DctPage   ),
                         .DataOutCount  ( DctCount  ),
                         .Data0Out      ( Dct0Data  ),
                         .Data1Out      ( Dct1Data  )
                         );

	wire	ColorEnable;
	wire [15:0]	ColorPixelX, ColorPixelY;
	wire [7:0]	ColorR, ColorG, ColorB;
   jpeg_ycbcr u_jpeg_ycbcr(
                           .rst(rst),
                           .clk(clk),
                           
                           .DataInEnable     ( DctEnable ),
                           .DataInPage       ( DctPage   ),
                           .DataInCount      ( DctCount  ),
                           .DataInIdle       ( YCbCrIdle ),
                           .Data0In          ( Dct0Data  ),
                           .Data1In          ( Dct1Data  ),
                           .DataInBlockWidth ( JpegBlockWidth ),
                   
                           .OutEnable    ( ColorEnable ),
                           .OutPixelX    ( ColorPixelX ),
                           .OutPixelY    ( ColorPixelY ),
                           .OutR         ( ColorR      ),
                           .OutG         ( ColorG      ),
                           .OutB         ( ColorB      )
                           );
	// OutData
	assign OutEnable	= (ImageEnable)?ColorEnable:1'b0;
	assign OutPixelX	= (ImageEnable)?ColorPixelX:16'd0;
	assign OutPixelY	= (ImageEnable)?ColorPixelY:16'd0;
	assign OutR			= (ImageEnable)?ColorR:8'd0;
	assign OutG			= (ImageEnable)?ColorG:8'd0;
	assign OutB			= (ImageEnable)?ColorB:8'd0;

endmodule // jpeg_decode