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Merge pull request #9 from predefine/fix-bgra

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add BGRA support
This commit is contained in:
Ivaylo Ivanov 2024-03-12 22:57:03 +02:00 committed by GitHub
commit 0147763114
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3 changed files with 13 additions and 4 deletions
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7
board/Kconfig
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@ -1,5 +1,4 @@
menu "Device Support"
config APPLE_N61AP
bool "Support for Apple iPhone 6"
default n
@ -143,4 +142,10 @@ menu "Device Specific Addresses"
default 3 if SAMSUNG_J5LTE
default 4 if SAMSUNG_J4LTE
config FRAMEBUFFER_BGRA
bool "Framebuffer BGRA (for SimpleFB)"
depends on SIMPLE_FB
default y if SAMSUNG_J4LTE
default n
endmenu

2
include/lib/simplefb.h
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@ -9,10 +9,10 @@
#define SIMPLEFB_H_
typedef struct _color {
unsigned char a;
unsigned char r;
unsigned char g;
unsigned char b;
unsigned char a;
} color;
typedef struct _font_params {

8
lib/simplefb/simplefb.c
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@ -18,10 +18,14 @@ void clean_fb(volatile char *fb, int width, int height, int stride) {
/* Unlike ARGB8888, we explicitly use 3 bytes to represent each pixel, making sure no extra padding byte is added. */
void draw_pixel(volatile char *fb, int x, int y, int width, int stride, color c) {
long int location = (x * stride) + (y * width * stride);
#ifdef CONFIG_FRAMEBUFFER_BGRA
*(fb + location) = c.b;
*(fb + location + 2) = c.r;
#else
*(fb + location) = c.r;
*(fb + location + 1) = c.g;
*(fb + location + 2) = c.b;
#endif
*(fb + location + 1) = c.g;
#if CONFIG_FRAMEBUFFER_STRIDE == 4
*(fb + location + 3) = c.a;
#endif