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/*
* Copyright (C) ST-Ericsson SA 2010
*
* ST-Ericsson B2R2 utils
*
* Author: Johan Mossberg <johan.xx.mossberg@stericsson.com> for ST-Ericsson.
*
* License terms: GNU General Public License (GPL), version 2.
*/
#include "b2r2_utils.h"
#include "b2r2_debug.h"
#include <video/b2r2_blt.h>
#include <linux/kernel.h>
#include <linux/errno.h>
const s32 b2r2_s32_max = 2147483647;
void b2r2_get_img_bounding_rect(struct b2r2_blt_img *img,
struct b2r2_blt_rect *bounding_rect)
{
bounding_rect->x = 0;
bounding_rect->y = 0;
bounding_rect->width = img->width;
bounding_rect->height = img->height;
}
bool b2r2_is_zero_area_rect(struct b2r2_blt_rect *rect)
{
return rect->width == 0 || rect->height == 0;
}
bool b2r2_is_rect_inside_rect(struct b2r2_blt_rect *rect1,
struct b2r2_blt_rect *rect2)
{
return rect1->x >= rect2->x &&
rect1->y >= rect2->y &&
rect1->x + rect1->width <= rect2->x + rect2->width &&
rect1->y + rect1->height <= rect2->y + rect2->height;
}
void b2r2_intersect_rects(struct b2r2_blt_rect *rect1,
struct b2r2_blt_rect *rect2, struct b2r2_blt_rect *intersection)
{
struct b2r2_blt_rect tmp_rect;
tmp_rect.x = max(rect1->x, rect2->x);
tmp_rect.y = max(rect1->y, rect2->y);
tmp_rect.width = min(rect1->x + rect1->width, rect2->x + rect2->width)
- tmp_rect.x;
if (tmp_rect.width < 0)
tmp_rect.width = 0;
tmp_rect.height =
min(rect1->y + rect1->height, rect2->y + rect2->height) -
tmp_rect.y;
if (tmp_rect.height < 0)
tmp_rect.height = 0;
*intersection = tmp_rect;
}
int b2r2_get_fmt_bpp(enum b2r2_blt_fmt fmt)
{
/*
* Currently this function is not used that often but if that changes a
* lookup table could make it a lot faster.
*/
switch (fmt) {
case B2R2_BLT_FMT_1_BIT_A1:
return 1;
case B2R2_BLT_FMT_8_BIT_A8:
return 8;
case B2R2_BLT_FMT_YUV420_PACKED_PLANAR:
case B2R2_BLT_FMT_YVU420_PACKED_PLANAR:
case B2R2_BLT_FMT_YUV420_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YVU420_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YUV420_PACKED_SEMIPLANAR_MB_STE:
return 12;
case B2R2_BLT_FMT_16_BIT_ARGB4444:
case B2R2_BLT_FMT_16_BIT_ARGB1555:
case B2R2_BLT_FMT_16_BIT_RGB565:
case B2R2_BLT_FMT_Y_CB_Y_CR:
case B2R2_BLT_FMT_CB_Y_CR_Y:
case B2R2_BLT_FMT_YUV422_PACKED_PLANAR:
case B2R2_BLT_FMT_YVU422_PACKED_PLANAR:
case B2R2_BLT_FMT_YUV422_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YVU422_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YUV422_PACKED_SEMIPLANAR_MB_STE:
return 16;
case B2R2_BLT_FMT_24_BIT_RGB888:
case B2R2_BLT_FMT_24_BIT_ARGB8565:
case B2R2_BLT_FMT_24_BIT_YUV888:
case B2R2_BLT_FMT_24_BIT_VUY888:
case B2R2_BLT_FMT_YUV444_PACKED_PLANAR:
return 24;
case B2R2_BLT_FMT_32_BIT_ARGB8888:
case B2R2_BLT_FMT_32_BIT_ABGR8888:
case B2R2_BLT_FMT_32_BIT_AYUV8888:
case B2R2_BLT_FMT_32_BIT_VUYA8888:
return 32;
default:
b2r2_log_err("%s: Internal error! Format %#x not recognized.\n",
__func__, fmt);
return 32;
}
}
int b2r2_get_fmt_y_bpp(enum b2r2_blt_fmt fmt)
{
switch (fmt) {
case B2R2_BLT_FMT_YUV420_PACKED_PLANAR:
case B2R2_BLT_FMT_YVU420_PACKED_PLANAR:
case B2R2_BLT_FMT_YUV420_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YVU420_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YUV420_PACKED_SEMIPLANAR_MB_STE:
case B2R2_BLT_FMT_Y_CB_Y_CR:
case B2R2_BLT_FMT_CB_Y_CR_Y:
case B2R2_BLT_FMT_YUV422_PACKED_PLANAR:
case B2R2_BLT_FMT_YVU422_PACKED_PLANAR:
case B2R2_BLT_FMT_YUV422_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YVU422_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YUV422_PACKED_SEMIPLANAR_MB_STE:
case B2R2_BLT_FMT_YUV444_PACKED_PLANAR:
case B2R2_BLT_FMT_24_BIT_YUV888:
case B2R2_BLT_FMT_32_BIT_AYUV8888:
case B2R2_BLT_FMT_24_BIT_VUY888:
case B2R2_BLT_FMT_32_BIT_VUYA8888:
return 8;
default:
b2r2_log_err("%s: Internal error! Non YCbCr format supplied.\n",
__func__);
return 8;
}
}
bool b2r2_is_single_plane_fmt(enum b2r2_blt_fmt fmt)
{
switch (fmt) {
case B2R2_BLT_FMT_1_BIT_A1:
case B2R2_BLT_FMT_8_BIT_A8:
case B2R2_BLT_FMT_16_BIT_ARGB4444:
case B2R2_BLT_FMT_16_BIT_ARGB1555:
case B2R2_BLT_FMT_16_BIT_RGB565:
case B2R2_BLT_FMT_24_BIT_RGB888:
case B2R2_BLT_FMT_24_BIT_ARGB8565:
case B2R2_BLT_FMT_24_BIT_YUV888:
case B2R2_BLT_FMT_24_BIT_VUY888:
case B2R2_BLT_FMT_32_BIT_ARGB8888:
case B2R2_BLT_FMT_32_BIT_ABGR8888:
case B2R2_BLT_FMT_32_BIT_AYUV8888:
case B2R2_BLT_FMT_32_BIT_VUYA8888:
case B2R2_BLT_FMT_Y_CB_Y_CR:
case B2R2_BLT_FMT_CB_Y_CR_Y:
return true;
default:
return false;
}
}
bool b2r2_is_independent_pixel_fmt(enum b2r2_blt_fmt fmt)
{
switch (fmt) {
case B2R2_BLT_FMT_1_BIT_A1:
case B2R2_BLT_FMT_8_BIT_A8:
case B2R2_BLT_FMT_16_BIT_ARGB4444:
case B2R2_BLT_FMT_16_BIT_ARGB1555:
case B2R2_BLT_FMT_16_BIT_RGB565:
case B2R2_BLT_FMT_24_BIT_RGB888:
case B2R2_BLT_FMT_24_BIT_ARGB8565:
case B2R2_BLT_FMT_24_BIT_YUV888:
case B2R2_BLT_FMT_24_BIT_VUY888:
case B2R2_BLT_FMT_32_BIT_ARGB8888:
case B2R2_BLT_FMT_32_BIT_ABGR8888:
case B2R2_BLT_FMT_32_BIT_AYUV8888:
case B2R2_BLT_FMT_32_BIT_VUYA8888:
case B2R2_BLT_FMT_YUV444_PACKED_PLANAR:
return true;
default:
return false;
}
}
bool b2r2_is_ycbcri_fmt(enum b2r2_blt_fmt fmt)
{
switch (fmt) {
case B2R2_BLT_FMT_Y_CB_Y_CR:
case B2R2_BLT_FMT_CB_Y_CR_Y:
case B2R2_BLT_FMT_24_BIT_YUV888:
case B2R2_BLT_FMT_32_BIT_AYUV8888:
case B2R2_BLT_FMT_24_BIT_VUY888:
case B2R2_BLT_FMT_32_BIT_VUYA8888:
return true;
default:
return false;
}
}
bool b2r2_is_ycbcrsp_fmt(enum b2r2_blt_fmt fmt)
{
switch (fmt) {
case B2R2_BLT_FMT_YUV420_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YVU420_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YUV422_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YVU422_PACKED_SEMI_PLANAR:
return true;
default:
return false;
}
}
bool b2r2_is_ycbcrp_fmt(enum b2r2_blt_fmt fmt)
{
switch (fmt) {
case B2R2_BLT_FMT_YUV420_PACKED_PLANAR:
case B2R2_BLT_FMT_YVU420_PACKED_PLANAR:
case B2R2_BLT_FMT_YUV422_PACKED_PLANAR:
case B2R2_BLT_FMT_YVU422_PACKED_PLANAR:
case B2R2_BLT_FMT_YUV444_PACKED_PLANAR:
return true;
default:
return false;
}
}
bool b2r2_is_ycbcr420_fmt(enum b2r2_blt_fmt fmt)
{
switch (fmt) {
case B2R2_BLT_FMT_YUV420_PACKED_PLANAR:
case B2R2_BLT_FMT_YVU420_PACKED_PLANAR:
case B2R2_BLT_FMT_YUV420_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YVU420_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YUV420_PACKED_SEMIPLANAR_MB_STE:
return true;
default:
return false;
}
}
bool b2r2_is_ycbcr422_fmt(enum b2r2_blt_fmt fmt)
{
switch (fmt) {
case B2R2_BLT_FMT_Y_CB_Y_CR:
case B2R2_BLT_FMT_CB_Y_CR_Y:
case B2R2_BLT_FMT_YUV422_PACKED_PLANAR:
case B2R2_BLT_FMT_YVU422_PACKED_PLANAR:
case B2R2_BLT_FMT_YUV422_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YVU422_PACKED_SEMI_PLANAR:
case B2R2_BLT_FMT_YUV422_PACKED_SEMIPLANAR_MB_STE:
return true;
default:
return false;
}
}
bool b2r2_is_ycbcr444_fmt(enum b2r2_blt_fmt fmt)
{
switch (fmt) {
case B2R2_BLT_FMT_YUV444_PACKED_PLANAR:
case B2R2_BLT_FMT_32_BIT_AYUV8888:
case B2R2_BLT_FMT_24_BIT_YUV888:
case B2R2_BLT_FMT_32_BIT_VUYA8888:
case B2R2_BLT_FMT_24_BIT_VUY888:
return true;
default:
return false;
}
}
bool b2r2_is_mb_fmt(enum b2r2_blt_fmt fmt)
{
switch (fmt) {
case B2R2_BLT_FMT_YUV420_PACKED_SEMIPLANAR_MB_STE:
case B2R2_BLT_FMT_YUV422_PACKED_SEMIPLANAR_MB_STE:
return true;
default:
return false;
}
}
u32 b2r2_calc_pitch_from_width(s32 width, enum b2r2_blt_fmt fmt)
{
if (b2r2_is_single_plane_fmt(fmt)) {
return (u32)b2r2_div_round_up(width *
b2r2_get_fmt_bpp(fmt), 8);
} else if (b2r2_is_ycbcrsp_fmt(fmt) || b2r2_is_ycbcrp_fmt(fmt)) {
return (u32)b2r2_div_round_up(width *
b2r2_get_fmt_y_bpp(fmt), 8);
} else {
b2r2_log_err("%s: Internal error! "
"Pitchless format supplied.\n",
__func__);
return 0;
}
}
u32 b2r2_get_img_pitch(struct b2r2_blt_img *img)
{
if (img->pitch != 0)
return img->pitch;
else
return b2r2_calc_pitch_from_width(img->width, img->fmt);
}
s32 b2r2_get_img_size(struct b2r2_blt_img *img)
{
if (b2r2_is_single_plane_fmt(img->fmt)) {
return (s32)b2r2_get_img_pitch(img) * img->height;
} else if (b2r2_is_ycbcrsp_fmt(img->fmt) ||
b2r2_is_ycbcrp_fmt(img->fmt)) {
s32 y_plane_size;
y_plane_size = (s32)b2r2_get_img_pitch(img) * img->height;
if (b2r2_is_ycbcr420_fmt(img->fmt)) {
return y_plane_size + y_plane_size / 2;
} else if (b2r2_is_ycbcr422_fmt(img->fmt)) {
return y_plane_size * 2;
} else if (b2r2_is_ycbcr444_fmt(img->fmt)) {
return y_plane_size * 3;
} else {
b2r2_log_err("%s: Internal error! "
"Format %#x not recognized.\n",
__func__, img->fmt);
return 0;
}
} else if (b2r2_is_mb_fmt(img->fmt)) {
return (img->width * img->height *
b2r2_get_fmt_bpp(img->fmt)) / 8;
} else {
b2r2_log_err("%s: Internal error! "
"Format %#x not recognized.\n",
__func__, img->fmt);
return 0;
}
}
s32 b2r2_div_round_up(s32 dividend, s32 divisor)
{
s32 quotient = dividend / divisor;
if (dividend % divisor != 0)
quotient++;
return quotient;
}
bool b2r2_is_aligned(s32 value, s32 alignment)
{
return value % alignment == 0;
}
s32 b2r2_align_up(s32 value, s32 alignment)
{
s32 remainder = abs(value) % abs(alignment);
s32 value_to_add;
if (remainder > 0) {
if (value >= 0)
value_to_add = alignment - remainder;
else
value_to_add = remainder;
} else {
value_to_add = 0;
}
return value + value_to_add;
}
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