Renesas / GraphicsFramework

Graphics framework for GR-PEACH. When you use this program, we judge you have agreed to the following contents. https://developer.mbed.org/teams/Renesas/wiki/About-LICENSE

Dependents:   ImageZoomInout_Sample ImageRotaion_Sample ImageScroll_Sample GR-PEACH_LCD_4_3inch_Save_to_USB ... more

License

When you use this library, we judge you have agreed to the following contents.

https://developer.mbed.org/teams/Renesas/wiki/About-LICENSE

Note

If you import the GraphicsFramework library, please import GR-PEACH_video library and R_BSP library together.



JPEG Converter

The JPEG Converter driver implements encode and decode functionality which uses the JCU of the RZ/A Series.

Hello World!

Import programJCU_HelloWorld

Hello World for JCU(JPEG Codec Unit). JCU is JPEG codec unit of RZ/A1. When you use this program, we judge you have agreed to the following contents. https://developer.mbed.org/teams/Renesas/wiki/About-LICENSE

Last commit 28 Dec 2018 by Renesas

API

Import library
GraphicsFramework - JPEG_Converter Class Reference

Data Structures

struct bitmap_buff_info_t
Bitmap data setting struct. More...
struct encode_options_t
Encode option setting. More...

Public Types

enum jpeg_conv_error_t {
JPEG_CONV_OK = 0, JPEG_CONV_JCU_ERR = -1, JPEG_CONV_FORMA_ERR = -2, JPEG_CONV_PARAM_ERR = -3,
JPEG_CONV_BUSY = -4, JPEG_CONV_PARAM_RANGE_ERR = -7
}

Error codes.

More...
enum wr_rd_swa_t {
WR_RD_WRSWA_NON = 0, WR_RD_WRSWA_8BIT = 1, WR_RD_WRSWA_16BIT = 2, WR_RD_WRSWA_16_8BIT = 3,
WR_RD_WRSWA_32BIT = 4, WR_RD_WRSWA_32_8BIT = 5, WR_RD_WRSWA_32_16BIT = 6, WR_RD_WRSWA_32_16_8BIT = 7
}

Write/Read image pixcel frame buffer swap setting.

More...
enum wr_rd_format_t { WR_RD_YCbCr422 = 0x00, WR_RD_ARGB8888 = 0x01, WR_RD_RGB565 = 0x02 }

Write/Read image pixcel format selects.

More...
enum sub_sampling_t { SUB_SAMPLING_1_1 = 0x00, SUB_SAMPLING_1_2 = 0x01, SUB_SAMPLING_1_4 = 0x02, SUB_SAMPLING_1_8 = 0x03 }

Thinning output image selects.

More...
enum cbcr_offset_t { CBCR_OFFSET_0 = 0x00, CBCR_OFFSET_128 = 0x01 }

Cb/Cr range selects for decode.

More...

Public Member Functions

JPEG_Converter ()
Constructor method of JPEG converter(encode/decode)
virtual ~JPEG_Converter ()
Destructor method of JPEG converter(encode/decode)
JPEG_Converter::jpeg_conv_error_t decode (void *pJpegBuff, bitmap_buff_info_t *psOutputBuff)
Decode JPEG to rinear data.
JPEG_Converter::jpeg_conv_error_t decode (void *pJpegBuff, bitmap_buff_info_t *psOutputBuff, decode_options_t *pOptions)
JPEG data decode to bitmap.
JPEG_Converter::jpeg_conv_error_t encode ( bitmap_buff_info_t *psInputBuff, void *pJpegBuff, size_t *pEncodeSize)
Encode rinear data to JPEG.
JPEG_Converter::jpeg_conv_error_t encode ( bitmap_buff_info_t *psInputBuff, void *pJpegBuff, size_t *pEncodeSize, encode_options_t *pOptions)
Bitmap data encode to JPEG.
JPEG_Converter::jpeg_conv_error_t SetQuality (const uint8_t qual)
Set encode quality.

Correspondence file

A correspondence file of JPEG Converter is as the following table.

JPEGCorrespondence
Width>0(greater than 0)
Height>0(greater than 0)
Color formatYCbCr444, YCbCr422, YCbCr420, YCbCr411
BitmapCorrespondence
Width>0(greater than 0)
Height>0(greater than 0)
Color formatYCbCr422

Notice

You run JPEG converter once destruction each time.

You set whether these JPEG files aren't input, or it check error setting decode(set in "flag" = true). The JPEG file which becomes correspondence outside will be the following condition.

  • File besides the above-mentioned correspondence file.
  • As information in the JPEG file, WIDTH or HEIGHT is larger than output buffer setting.

Buffer area is used encode/decode, set 8 bytes align and non-cash memory area. The output buffer when decoding, is made beyond the size decided in the size of the JPEG file, the format, setting of thinning out. You make output buffer for decode/encode to enough big size in order to stock this result. JPEG Converter, if you do not particularly perform specified, does not check size against the output data at the time of encoding and decoding. You set the output buffer so that there is no effect of corruption by the output data.

Color format

Color format in case to be converted from Bitmap to JPEG is either ARGB8888 or RGB555, YCbCr422. Color format of the If you want to convert from JPEG file to Bitmap file is YCbCr422. You correct "alpha(member of decode_options_t)" of setting and "output_cb_cr_offset(member of decode_options_t)" according to color format when decoding.

  • example
    decode to ARGB8888(WR_RD_ARGB8888 set in format member of bitmap_buff_info_t)
    alpha = 0x01-0xFF
    output_cb_cr_offset = CBCR_OFFSET_0

    decode to YCbCr422(WR_RD_YCbCr422 set in format member of bitmap_buff_info_t)
    alpha = 0
    output_cb_cr_offset = CBCR_OFFSET_0 or CBCR_OFFSET_128

    decode to RGB565(WR_RD_RGB565 set in format member of bitmap_buff_info_t)
    alpha = 0
    output_cb_cr_offset = CBCR_OFFSET_0

Decode/encode settings are optional

If omitted encode/decode settings, it will work with the following settings.
[Decode option setting (member of decode_options_t)]

  • Vertical sub sampling is thinning output image to 1/1.
  • Horizontal sub sampling is thinning output image to 1/1.
  • Output data of Cb/Cr range is -128 to 127.
  • Output data of swap in 8-bit units: 2-1-4-3-6-5-8-7.
  • Alpha value of 0.
  • JPEG format correspondence outside error check.
  • It decode in a synchronous function.

[Encode option setting (member of encode_options_t)]

  • DRI value is 0.
  • Encoding JPEG file start width offset is 0.
  • Encoding JPEG file start height offset is 0.
  • Input data of Cb/Cr range of input data is -128 to 127.
  • Input data swap in 8-bit units: 2-1-4-3-6-5-8-7.
  • It don't check encode size.
  • Quantization Y use default table(Quality75).
  • Quantization C use default table(Quality75).
  • Huffman Y DC use default table.
  • Huffman C DC use default table.
  • Huffman Y AC use default table.
  • Huffman C AC use default table.
  • It encode in a synchronous function.

Synchronous/asynchronous switching

Decoding and encoding setting to operate asynchronously by setting a callback function(decode_options_t and encode_options_t).

Quality

Quality changes are possible. If you want to change the Quality, please specify the table made of Quality you want to change the address of the setting. If you do not want to change the Quality, it will operate at Quality75.

RGA

The RGA library implements fast drawing functionality which uses the RGA of the RZ/A Series.
Supporting compiler is ARMCC, GCC ARM and IAR.

Hello World!

Import programRGA_HelloWorld

Hello World for RGA(Renesas Graphics Architecture). RGA is the Graphics Library of RZ/A1. When you use this program, we judge you have agreed to the following contents. https://developer.mbed.org/teams/Renesas/wiki/About-LICENSE

Last commit 24 Apr 2017 by Renesas

Diff: RGA/inc/vsync.h

Revision:
3:9f857750e4e9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RGA/inc/vsync.h	Wed Jan 20 02:35:17 2016 +0000
@@ -0,0 +1,138 @@
+/*******************************************************************************
+* DISCLAIMER
+* This software is supplied by Renesas Electronics Corporation and is only
+* intended for use with Renesas products. No other uses are authorized. This
+* software is owned by Renesas Electronics Corporation and is protected under
+* all applicable laws, including copyright laws.
+* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
+* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
+* LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
+* AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
+* TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
+* ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
+* FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
+* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
+* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+* Renesas reserves the right, without notice, to make changes to this software
+* and to discontinue the availability of this software. By using this software,
+* you agree to the additional terms and conditions found by accessing the
+* following link:
+* http://www.renesas.com/disclaimer
+* Copyright (C) 2012 - 2014 Renesas Electronics Corporation. All rights reserved.
+*******************************************************************************/
+/**
+* @file  vsync.h
+* @brief   $Module: CLibCommon $ $PublicVersion: 1.00 $ (=CLIB_VERSION)
+* $Rev: 38 $
+* $Date:: 2014-03-18 16:14:45 +0900#$
+*/
+
+#ifndef  VSYNC_H
+#define  VSYNC_H
+
+/******************************************************************************
+Includes   <System Includes> , "Project Includes"
+******************************************************************************/
+#include  "r_typedefs.h"
+#include  "vsync_typedef.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+/******************************************************************************
+Typedef definitions
+******************************************************************************/
+/* In "vsync_typedef.h" */
+
+/******************************************************************************
+Macro definitions
+******************************************************************************/
+/* In "vsync_typedef.h" */
+
+/******************************************************************************
+Variable Externs
+******************************************************************************/
+/* In "vsync_typedef.h" */
+
+/******************************************************************************
+Functions Prototypes
+******************************************************************************/
+
+/**
+* @brief   Initialize V-Sync object of specified channel number
+*
+* @param   ChannelNum ChannelNum
+* @return  Error Code. 0=No Error.
+*/
+errnum_t  R_V_SYNC_Initialize( int_fast32_t const  ChannelNum );
+
+
+/**
+* @brief   R_V_SYNC_Finalize
+*
+* @param   ChannelNum ChannelNum
+* @param   e Errors that have occurred. No error = 0
+* @return  Error code or e, 0 = successful and input e=0
+*/
+errnum_t  R_V_SYNC_Finalize( int_fast32_t const  ChannelNum,  errnum_t e );
+
+
+/**
+* @brief   Wait for V-Sync
+*
+* @param   ChannelNum ChannelNum
+* @param   SwapInterval If 1=60fps Then 2=30fps, 3=20fps
+* @param   Is1VSyncAtMinimum false = It is possible to return soon
+* @return  Error Code. 0=No Error.
+*/
+errnum_t  R_V_SYNC_Wait( int_fast32_t const  ChannelNum,
+                         int_fast32_t const  SwapInterval,  bool_t const  Is1VSyncAtMinimum );
+
+
+/**
+* @brief   Asynchronous function of <R_V_SYNC_Wait>
+*
+* @param   ChannelNum ChannelNum
+* @param   SwapInterval If 1=60fps Then 2=30fps, 3=20fps
+* @param   Is1VSyncAtMinimum false = It is possible to set event soon
+* @param   Async r_ospl_async_t
+* @return  Error Code. 0=No Error.
+*/
+errnum_t  R_V_SYNC_WaitStart( int_fast32_t const  ChannelNum,
+                              int_fast32_t const  SwapInterval,  bool_t const  Is1VSyncAtMinimum,
+                              r_ospl_async_t *const  Async );
+
+
+/**
+* @brief   Receive interrupt information.
+*
+* @param   InterruptSource r_ospl_interrupt_t
+* @return  Error Code. 0=No Error.
+*/
+errnum_t  R_V_SYNC_OnInterrupting( const r_ospl_interrupt_t *const  InterruptSource );
+
+
+/**
+* @brief   Get <r_v_sync_async_status_t>
+*
+* @param   ChannelNum ChannelNum
+* @param   out_Status AsyncStatus
+* @return  Error Code. 0=No Error.
+*/
+errnum_t  R_V_SYNC_GetAsyncStatus( int_fast32_t const  ChannelNum,
+                                   const r_v_sync_async_status_t **const  out_Status );
+
+
+/* Following functions can not be called from Application. */
+void      R_V_SYNC_EnableInterrupt( int_fast32_t const  ChannelNum );
+bool_t    R_V_SYNC_DisableInterrupt( int_fast32_t const  ChannelNum );
+/* It is not necessary: R_V_SYNC_FinalizeAsync(), R_V_SYNC_OnInterrupted() */
+
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif /* __cplusplus */
+
+#endif