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boards: cxd56_imageproc.c: Add RGB565 -> YUV422 converter

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Enable to interconvert between YUV422 and RGB565.
This commit is contained in:
SPRESENSE 2020-07-27 13:54:25 +09:00 committed by Alin Jerpelea
parent 8f39b20488
commit 8fec8cccfc
2 changed files with 64 additions and 39 deletions
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93
boards/arm/cxd56xx/common/src/cxd56_imageproc.c
View File

@ -379,6 +379,53 @@ static void *set_halt_cmd(void *cmdbuf)
return (void *)((uintptr_t) cmdbuf + 16);
}
static void imageproc_convert_(int is_yuv2rgb,
uint8_t * ibuf,
uint32_t hsize,
uint32_t vsize)
{
int ret;
if ((hsize & 1) || (vsize & 1))
{
return;
}
ret = ip_semtake(&g_rotexc);
if (ret)
{
return;
}
/* Image processing hardware want to be set horizontal/vertical size
* to actual size - 1.
*/
--hsize;
--vsize;
putreg32(1, ROT_INTR_ENABLE);
putreg32(0, ROT_INTR_DISABLE);
putreg32(0, ROT_SET_DIRECTION);
putreg32(hsize, ROT_SET_SRC_HSIZE);
putreg32(vsize, ROT_SET_SRC_VSIZE);
putreg32((uint32_t) (uintptr_t) ibuf, ROT_SET_SRC_ADDRESS);
putreg32(hsize, ROT_SET_SRC_PITCH);
putreg32((uint32_t) (uintptr_t) ibuf, ROT_SET_DST_ADDRESS);
putreg32(hsize, ROT_SET_DST_PITCH);
putreg32(is_yuv2rgb ? 1 : 2, ROT_CONV_CTRL);
putreg32(0, ROT_RGB_ALIGNMENT);
putreg32(1, ROT_COMMAND);
ip_semtake(&g_rotwait);
ip_semgive(&g_rotexc);
}
/****************************************************************************
* Public Functions
****************************************************************************/
@ -424,46 +471,14 @@ void imageproc_convert_yuv2rgb(uint8_t * ibuf,
uint32_t hsize,
uint32_t vsize)
{
int ret;
imageproc_convert_(1, ibuf, hsize, vsize);
}
if ((hsize & 1) || (vsize & 1))
{
return;
}
ret = ip_semtake(&g_rotexc);
if (ret)
{
return;
}
/* Image processing hardware want to be set horizontal/vertical size
* to actual size - 1.
*/
--hsize;
--vsize;
putreg32(1, ROT_INTR_ENABLE);
putreg32(0, ROT_INTR_DISABLE);
putreg32(0, ROT_SET_DIRECTION);
putreg32(hsize, ROT_SET_SRC_HSIZE);
putreg32(vsize, ROT_SET_SRC_VSIZE);
putreg32((uint32_t) (uintptr_t) ibuf, ROT_SET_SRC_ADDRESS);
putreg32(hsize, ROT_SET_SRC_PITCH);
putreg32((uint32_t) (uintptr_t) ibuf, ROT_SET_DST_ADDRESS);
putreg32(hsize, ROT_SET_DST_PITCH);
putreg32(1, ROT_CONV_CTRL);
putreg32(0, ROT_RGB_ALIGNMENT);
putreg32(1, ROT_COMMAND);
ip_semtake(&g_rotwait);
ip_semgive(&g_rotexc);
void imageproc_convert_rgb2yuv(uint8_t * ibuf,
uint32_t hsize,
uint32_t vsize)
{
imageproc_convert_(0, ibuf, hsize, vsize);
}
void imageproc_convert_yuv2gray(uint8_t * ibuf, uint8_t * obuf, size_t hsize,

10
boards/arm/cxd56xx/spresense/include/cxd56_imageproc.h
View File

@ -85,6 +85,16 @@ extern "C"
void imageproc_convert_yuv2rgb(uint8_t * ibuf, uint32_t hsize,
uint32_t vsize);
/* Convert color format (RGB to YUV)
*
* [in,out] ibuf: image
* [in] hsize: Horizontal size
* [in] vsize: Vertical size
*/
void imageproc_convert_rgb2yuv(uint8_t * ibuf, uint32_t hsize,
uint32_t vsize);
/* Convert color format (YUV to grayscale)
*
* TODO: need more description here