148 lines
5.9 KiB
C
148 lines
5.9 KiB
C
/******************************************************************************
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* arch/arm/src/stm32/stm32_dma2d.h
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*
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* Copyright (C) 2014 Marco Krahl. All rights reserved.
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* Author: Marco Krahl <ocram.lhark@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************/
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#ifndef __ARCH_ARM_SRC_STM32_STM32_DMA2D_H
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#define __ARCH_ARM_SRC_STM32_STM32_DMA2D_H
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/******************************************************************************
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* Included Files
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******************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/video/fb.h>
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#include <arch/chip/ltdc.h>
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#include "stm32_ltdc.h"
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#ifdef CONFIG_STM32_DMA2D
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/******************************************************************************
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* Pre-processor Definitions
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******************************************************************************/
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/******************************************************************************
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* Public Types
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******************************************************************************/
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/******************************************************************************
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* Public Data
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******************************************************************************/
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/******************************************************************************
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* Public Functions
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******************************************************************************/
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/******************************************************************************
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* Name: stm32_dma2dblit
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*
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* Description:
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* Copy selected area from a background layer to selected position of the
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* foreground layer. Copies the result to the destination layer.
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*
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* Parameter:
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* dest - Valid reference to the destination layer
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* fore - Valid reference to the foreground layer
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* forexpos - Valid selected x target position of the destination layer
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* foreypos - Valid selected y target position of the destination layer
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* back - Valid reference to the background layer
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* backarea - Valid reference to the selected area of the background layer
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*
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* Return:
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* OK - On success
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* -EINVAL - On error
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*
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******************************************************************************/
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int stm32_dma2dblit(FAR struct stm32_ltdc_s *dest,
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FAR struct stm32_ltdc_s *fore,
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fb_coord_t forexpos, fb_coord_t foreypos,
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FAR struct stm32_ltdc_s *back,
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FAR const struct ltdc_area_s *backarea);
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/******************************************************************************
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*
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* Name: stm32_dma2dblend
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*
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* Description:
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* Blends the selected area from a background layer with selected position of
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* the foreground layer. Blends the result with the destination layer.
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* Note! This is the same as the blit operation but with blending depending on
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* the blendmode settings of the layer.
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*
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* Parameter:
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* dest - Valid reference to the destination layer
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* fore - Valid reference to the foreground layer
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* forexpos - Valid selected x target position of the destination layer
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* foreypos - Valid selected y target position of the destination layer
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* back - Valid reference to the background layer
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* backarea - Valid reference to the selected area of the background layer
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*
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* Return:
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* OK - On success
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* -EINVAL - On error
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*
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******************************************************************************/
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int stm32_dma2dblend(FAR struct stm32_ltdc_s *dest,
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FAR struct stm32_ltdc_s *fore,
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fb_coord_t forexpos, fb_coord_t foreypos,
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FAR struct stm32_ltdc_s *back,
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FAR const struct ltdc_area_s *backarea);
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/******************************************************************************
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* Name: up_dma2dinitialize
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*
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* Description:
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* Initialize the dma2d controller
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*
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* Return:
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* OK - On success
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* An error if initializing failed.
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*
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******************************************************************************/
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int up_dma2dinitialize(void);
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/******************************************************************************
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* Name: up_dma2duninitialize
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*
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* Description:
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* Uninitialize the dma2d controller
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*
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******************************************************************************/
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void up_dma2duninitialize(void);
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#endif /* CONFIG_STM32_DMA2D */
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#endif /* __ARCH_ARM_SRC_STM32_STM32_DMA2D_H */
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