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

API

Import library

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

RGA/inc/window_surfaces.hpp

Committer:
1050186
Date:
2016-01-20
Revision:
3:9f857750e4e9

File content as of revision 3:9f857750e4e9:

/*******************************************************************************
* 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) 2014 - 2015 Renesas Electronics Corporation. All rights reserved.
*******************************************************************************/
/**
* @file  window_surfaces.hpp
* @brief   $Module: CLibCommon $ $PublicVersion: 1.20 $ (=CLIB_VERSION)
* $Rev: 47 $
* $Date:: 2014-01-06 18:18:48 +0900#$
* - Description: Window Surfaces for mbed style C++ API
*/

#ifndef  WINDOW_SURFACES_HPP
#define  WINDOW_SURFACES_HPP

/******************************************************************************
Includes   <System Includes> , "Project Includes"
******************************************************************************/
#include  "r_ospl_typedef.h"
#include  "window_surfaces_typedef.h"
#include  "RGA.h"


/******************************************************************************
Macro definitions
******************************************************************************/

/******************************************************************************
Typedef definitions
******************************************************************************/

class  WindowSurfacesConfigClass;
#ifdef  IS_WINDOW_SURFACES_EX
class  GraphicsClass;
class  LayerAttributes;
#endif


/***********************************************************************
* Class: WindowSurfacesClass
*    mbed style C++ version of <window_surfaces_t>
************************************************************************/
class  WindowSurfacesClass {
public:
	/**
* @brief   WindowSurfacesClass
*
* @par Parameters
*    None
* @return  None.
*/
	WindowSurfacesClass();
	~WindowSurfacesClass();

	/**
* @brief   initialize
*
* @par Parameters
*    None
* @return  None.
*/
	errnum_t  initialize( WindowSurfacesConfigClass& in_out_config );

	/**
* @brief   destroy
*
* @par Parameters
*    None
* @return  None.
*/
	void  destroy();

	/**
* @brief   get_layer_frame_buffer
*
* @par Parameters
*    None
* @return  None.
*/
	errnum_t  get_layer_frame_buffer( int_fast32_t const  layer_num,  frame_buffer_t** const  out_frame_buffer );

	/**
* @brief   swap_buffers
*
* @par Parameters
*    None
* @return  None.
*/
	#ifdef  IS_WINDOW_SURFACES_EX
	errnum_t  swap_buffers( int_fast32_t const  layer_num,  Canvas2D_ContextClass&  context );
	#else
	errnum_t  swap_buffers( int_fast32_t const  layer_num,  const void* const  null_context );
	#endif

	/**
* @brief   swap_buffers_start
*
* @par Parameters
*    None
* @return  None.
*/
	errnum_t  swap_buffers_start( int_fast32_t const  layer_num,  r_ospl_async_t* async );

	/**
* @brief   wait_for_v_sync
*
* @par Parameters
*    None
* @return  None.
*/
	errnum_t  wait_for_v_sync( int_fast32_t const  swap_interval,  bool_t const  is_1_v_sync_at_minimum );

	/**
* @brief   alloc_offscreen_stack
*
* @par Parameters
*    None
* @return  None.
*/
	errnum_t  alloc_offscreen_stack( frame_buffer_t* const  in_out_frame_buffer );

	/**
* @brief   free_offscreen_stack
*
* @par Parameters
*    None
* @return  None.
*/
	errnum_t  free_offscreen_stack( const frame_buffer_t* const  frame_buffer );

#ifdef  IS_WINDOW_SURFACES_EX
	/**
* @brief   do_message_loop
*
* @par Parameters
*    None
* @return  None.
*/
	errnum_t  do_message_loop();

	/**
* @brief   access_layer_attributes
*
* @par Parameters
*    None
* @return  None.
*/
	errnum_t  access_layer_attributes( LayerAttributes& in_out_Attributes );
#endif

private:
	window_surfaces_t*  _self;
};


/***********************************************************************
* Class: WindowSurfacesConfigClass
*    mbed style C++ version of <window_surfaces_config_t>
************************************************************************/
class  WindowSurfacesConfigClass : public window_surfaces_config_t {
public:
	/**
* @brief   WindowSurfacesConfigClass
*
* @par Parameters
*    None
* @return  None.
*/
	WindowSurfacesConfigClass();
};


/***********************************************************************
* Class: LayerAttributes
*    mbed style C++ version of <layer_attributes_t>
************************************************************************/
#ifdef  IS_WINDOW_SURFACES_EX
class  LayerAttributes : public layer_attributes_t {
public:
	/**
* @brief   LayerAttributes
*
* @par Parameters
*    None
* @return  None.
*/
	LayerAttributes();
};
#endif


/******************************************************************************
Variable Externs
******************************************************************************/

/******************************************************************************
Functions Prototypes
******************************************************************************/

#endif  /* WINDOW_SURFACES_HPP */