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

jcu/porting/jcu_pl.c

Committer:
dkato
Date:
2017-03-28
Revision:
12:80f4beab1243
Parent:
0:37e1e6a45ced

File content as of revision 12:80f4beab1243:

/*******************************************************************************
* 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.
*******************************************************************************/
/*******************************************************************************
* $FileName: jcu_pl.c $
* $Module: JCU $ $PublicVersion: 1.00 $ (=JCU_VERSION)
* $Rev: 35 $
* $Date:: 2014-02-26 13:18:53 +0900#$
* Description : JCU driver porting layer
******************************************************************************/


/******************************************************************************
Includes   <System Includes> , "Project Includes"
******************************************************************************/
#include  "r_ospl.h"
#include  "iodefine.h"
#include  "r_jcu_api.h"
#include  "r_jcu_pl.h"

/******************************************************************************
Typedef definitions
******************************************************************************/
typedef struct st_jcu_pl_t  jcu_pl_t;

/*[jcu_pl_t]*/
struct st_jcu_pl_t {
    const r_ospl_caller_t     *InterruptCallbackCaller;
    const jcu_async_status_t  *Status;
};

/*[gs_jcu_pl]*/
static jcu_pl_t  gs_jcu_pl
;

/******************************************************************************
Macro definitions
******************************************************************************/
enum { JCU_INT_PRI = 2 };
#define  CPG_JCU_CLOCK_POWER_OFF  0x00000002u

/******************************************************************************
Imported global variables and functions (from other files)
******************************************************************************/

/******************************************************************************
Exported global variables and functions (to be accessed by other files)
******************************************************************************/

/******************************************************************************
Private global variables and functions
******************************************************************************/
static void  JCU_IRQ_JEDI_Handler(void);
static void  JCU_IRQ_JDTI_Handler(void);

/*[gs_jedi_interrupt_context] JEDI interrupt context */
/*[gs_jdti_interrupt_context] JDTI interrupt context */
static const r_ospl_interrupt_t  gs_jedi_interrupt_context = { BSP_INT_SRC_JEDI, 0 };
static const r_ospl_interrupt_t  gs_jdti_interrupt_context = { BSP_INT_SRC_JDTI, 0 };


/**************************************************************************//**
* Function Name: [R_JCU_SetDefaultAsync]
* @retval        None
******************************************************************************/
void  R_JCU_SetDefaultAsync( r_ospl_async_t *const  Async,  r_ospl_async_type_t AsyncType )
{
    IF_DQ( Async == NULL ) {
        goto fin;
    }

    if ( IS_BIT_NOT_SET( Async->Flags, R_F_OSPL_A_Thread ) ) {
        Async->A_Thread = NULL;
    }

    if ( IS_BIT_NOT_SET( Async->Flags, R_F_OSPL_A_EventValue ) ) {
        if ( AsyncType == R_OSPL_ASYNC_TYPE_NORMAL ) {
            Async->A_EventValue = R_OSPL_A_FLAG;
        } else {
            Async->A_EventValue = R_OSPL_FINAL_A_FLAG;
        }
    } else {
        ASSERT_D( IS_BIT_SET( Async->Flags, R_F_OSPL_A_Thread ), R_NOOP() );
    }

    if ( IS_BIT_NOT_SET( Async->Flags, R_F_OSPL_I_Thread ) ) {
        Async->I_Thread = NULL;
    }

    if ( IS_BIT_NOT_SET( Async->Flags, R_F_OSPL_I_EventValue ) ) {
        Async->I_EventValue = R_OSPL_I_FLAG;
    } else {
        ASSERT_D( IS_BIT_SET( Async->Flags, R_F_OSPL_I_Thread ), R_NOOP() );
    }

    if ( IS_BIT_NOT_SET( Async->Flags, R_F_OSPL_InterruptCallback ) ) {
        Async->InterruptCallback = &( R_JCU_OnInterruptDefault );    /* MISRA 16.9 */
    }

    Async->Flags = R_F_OSPL_A_Thread | R_F_OSPL_A_EventValue |
                   R_F_OSPL_I_Thread | R_F_OSPL_I_EventValue |
                   R_F_OSPL_InterruptCallback | R_F_OSPL_Delegate;
fin:
    return;
}


/**************************************************************************//**
* Function Name: [R_JCU_OnInitialize]
* @retval        Error code, 0=No error
******************************************************************************/
errnum_t  R_JCU_OnInitialize(void)
{
    errnum_t         e;
    bsp_int_err_t    eb;
    bsp_int_src_t const  num_of_JEDI_IRQ = gs_jedi_interrupt_context.IRQ_Num;
    bsp_int_src_t const  num_of_JDTI_IRQ = gs_jdti_interrupt_context.IRQ_Num;
    jcu_pl_t *const  self = &gs_jcu_pl;

    self->InterruptCallbackCaller = NULL;
    self->Status = NULL;


    /* Register "JEDI" */
    eb= R_BSP_InterruptWrite( num_of_JEDI_IRQ, &( JCU_IRQ_JEDI_Handler ) );  /* MISRA 16.9 */
    IF ( eb != 0 ) {
        e=E_OTHERS;
        goto fin;
    }

    e= R_OSPL_SetInterruptPriority( num_of_JEDI_IRQ, JCU_INT_PRI );
    IF ( e != 0 ) {
        goto fin;
    }


    /* Register "JDTI" */
    eb= R_BSP_InterruptWrite( num_of_JDTI_IRQ, &( JCU_IRQ_JDTI_Handler ) );  /* MISRA 16.9 */
    IF ( eb != 0 ) {
        e=E_OTHERS;
        goto fin;
    }

    e= R_OSPL_SetInterruptPriority( num_of_JDTI_IRQ, JCU_INT_PRI );
    IF ( e != 0 ) {
        goto fin;
    }


    /* start to suuply the clock for JCU */
    { /* ->QAC 0306 */
        uint32_t cpg_reg;
        cpg_reg = (uint32_t)(CPG.STBCR6) & ~CPG_JCU_CLOCK_POWER_OFF;
        CPG.STBCR6 =(uint8_t)cpg_reg;
    } /* <-QAC 0306 */

    e=0;
fin:
    return  e;
}


/**************************************************************************//**
* Function Name: [R_JCU_OnFinalize]
* @retval        Error code, 0=No error and e=0
******************************************************************************/
/* ->QAC 3227 : "e" is usually changed in finalize function. */
errnum_t  R_JCU_OnFinalize( errnum_t e )
/* <-QAC 3227 */
{
    /* stop to suuply the clock for JCU */
    { /* ->QAC 0306 */
        uint32_t cpg_reg;
        cpg_reg = (uint32_t)(CPG.STBCR6) | CPG_JCU_CLOCK_POWER_OFF;
        CPG.STBCR6 = (uint8_t)cpg_reg;
    } /* <-QAC 0306 */

    return  e;
}


/******************************************************************************
* Function Name: [R_JCU_SetInterruptCallbackCaller]
* @retval        Error code, 0=No error
******************************************************************************/
errnum_t  R_JCU_SetInterruptCallbackCaller( const r_ospl_caller_t *const  Caller )
{
    jcu_pl_t *const  self = &gs_jcu_pl;

    self->InterruptCallbackCaller = Caller;

    return  0;
}


/******************************************************************************
* Function Name: [R_JCU_OnEnableInterrupt]
* @retval        None
******************************************************************************/
void  R_JCU_OnEnableInterrupt( jcu_interrupt_lines_t const  Enables )
{
    bsp_int_err_t  eb;

    if ( IS_BIT_SET( Enables, JCU_INTERRUPT_LINE_JEDI ) ) {
        bsp_int_src_t const  num_of_IRQ = gs_jedi_interrupt_context.IRQ_Num;

        eb= R_BSP_InterruptControl( num_of_IRQ, BSP_INT_CMD_INTERRUPT_ENABLE, FIT_NO_PTR );
        ASSERT_D( eb == 0,  R_NOOP() );
        R_UNREFERENCED_VARIABLE( eb ); /* for Release configuration */
    }

    if ( IS_BIT_SET( Enables, JCU_INTERRUPT_LINE_JDTI ) ) {
        bsp_int_src_t const  num_of_IRQ = gs_jdti_interrupt_context.IRQ_Num;

        eb= R_BSP_InterruptControl( num_of_IRQ, BSP_INT_CMD_INTERRUPT_ENABLE, FIT_NO_PTR );
        ASSERT_D( eb == 0,  R_NOOP() );
        R_UNREFERENCED_VARIABLE( eb ); /* for Release configuration */
    }
}


/******************************************************************************
* Function Name: [R_JCU_OnDisableInterrupt]
* @retval        None
******************************************************************************/
void  R_JCU_OnDisableInterrupt( jcu_interrupt_lines_t const  Disables1 )
{
    bsp_int_err_t  eb;

    if ( IS_BIT_SET( Disables1, JCU_INTERRUPT_LINE_JEDI ) ) {
        bsp_int_src_t const  num_of_IRQ = gs_jedi_interrupt_context.IRQ_Num;

        eb= R_BSP_InterruptControl( num_of_IRQ, BSP_INT_CMD_INTERRUPT_DISABLE, FIT_NO_PTR );
        ASSERT_D( eb == 0,  R_NOOP() );
        R_UNREFERENCED_VARIABLE( eb ); /* for Release configuration */
    }

    if ( IS_BIT_SET( Disables1, JCU_INTERRUPT_LINE_JDTI ) ) {
        bsp_int_src_t const  num_of_IRQ = gs_jdti_interrupt_context.IRQ_Num;

        eb= R_BSP_InterruptControl( num_of_IRQ, BSP_INT_CMD_INTERRUPT_DISABLE, FIT_NO_PTR );
        ASSERT_D( eb == 0,  R_NOOP() );
        R_UNREFERENCED_VARIABLE( eb ); /* for Release configuration */
    }
}


/******************************************************************************
* Function Name: [R_JCU_OnInterruptDefault]
* @retval        Error code, 0=No error
******************************************************************************/
errnum_t  R_JCU_OnInterruptDefault( const r_ospl_interrupt_t *const  InterruptSource,
                                    const r_ospl_caller_t *const  Caller )
{
    errnum_t  e;
    errnum_t  ee;
    r_ospl_async_t  *async;

    e = 0;
    R_AVOID_UNSAFE_ALWAYS_WARNING( e );

    IF_DQ( Caller == NULL ) {
        goto fin;
    }

    ee= R_JCU_OnInterrupting( InterruptSource );
    IF ( (ee != 0) && (e == 0) ) {
        e = ee;
    }

    async = Caller->Async;

    if ( async->I_Thread == NULL ) {
        ee= R_JCU_OnInterrupted();
        IF ( (ee != 0) && (e == 0) ) {
            e = ee;
        }
    } else {
        R_OSPL_EVENT_Set( async->I_Thread, async->I_EventValue );
    }

fin:
    return  e;
}


/**************************************************************************//**
* Function Name: [JCU_IRQ_JEDI_Handler]
* @brief         JEDI (JCU Encode Decode Interrupt) interrupt handler
* @retval        None
******************************************************************************/
static void  JCU_IRQ_JEDI_Handler(void)
{
    jcu_pl_t *const                  self = &gs_jcu_pl;
    const r_ospl_interrupt_t *const  i_context = &gs_jedi_interrupt_context;

    R_OSPL_CallInterruptCallback( self->InterruptCallbackCaller, i_context );
}


/**************************************************************************//**
* Function Name: [JCU_IRQ_JDTI_Handler]
* @brief         JDTI (JCU Data Transfer Interrupt) interrupt handler
* @retval        None
******************************************************************************/
static void  JCU_IRQ_JDTI_Handler(void)
{
    jcu_pl_t *const                  self = &gs_jcu_pl;
    const r_ospl_interrupt_t *const  i_context = &gs_jdti_interrupt_context;

    R_OSPL_CallInterruptCallback( self->InterruptCallbackCaller, i_context );
}