// SPDX-License-Identifier: GPL-2.0 or MIT/* * Copyright (c) 2023 Red Hat. * Author: Jocelyn Falempe <jfalempe@redhat.com> */ #include <linux/bits.h>#include <linux/bug.h>#include <linux/export.h>#include <linux/iosys-map.h>#include <linux/types.h> #include <drm/drm_fourcc.h> #include "drm_draw_internal.h"#include "drm_format_internal.h" /** * drm_draw_can_convert_from_xrgb8888 - check if xrgb8888 can be converted to the desired format * @format: format * * Returns: * True if XRGB8888 can be converted to the specified format, false otherwise. */bool drm_draw_can_convert_from_xrgb8888(u32 format){ switch (format) { case DRM_FORMAT_RGB565: case DRM_FORMAT_RGBA5551: case DRM_FORMAT_XRGB1555: case DRM_FORMAT_ARGB1555: case DRM_FORMAT_RGB888: case DRM_FORMAT_XRGB8888: case DRM_FORMAT_ARGB8888: case DRM_FORMAT_XBGR8888: case DRM_FORMAT_ABGR8888: case DRM_FORMAT_XRGB2101010: case DRM_FORMAT_ARGB2101010: case DRM_FORMAT_ABGR2101010: return true; default: return false; }}EXPORT_SYMBOL(drm_draw_can_convert_from_xrgb8888); /** * drm_draw_color_from_xrgb8888 - convert one pixel from xrgb8888 to the desired format * @color: input color, in xrgb8888 format * @format: output format * * Returns: * Color in the format specified, casted to u32. * Or 0 if the format is not supported. */u32 drm_draw_color_from_xrgb8888(u32 color, u32 format){ switch (format) { case DRM_FORMAT_RGB565: return drm_pixel_xrgb8888_to_rgb565(color); case DRM_FORMAT_RGBA5551: return drm_pixel_xrgb8888_to_rgba5551(color); case DRM_FORMAT_XRGB1555: return drm_pixel_xrgb8888_to_xrgb1555(color); case DRM_FORMAT_ARGB1555: return drm_pixel_xrgb8888_to_argb1555(color); case DRM_FORMAT_RGB888: case DRM_FORMAT_XRGB8888: return color; case DRM_FORMAT_ARGB8888: return drm_pixel_xrgb8888_to_argb8888(color); case DRM_FORMAT_XBGR8888: return drm_pixel_xrgb8888_to_xbgr8888(color); case DRM_FORMAT_ABGR8888: return drm_pixel_xrgb8888_to_abgr8888(color); case DRM_FORMAT_XRGB2101010: return drm_pixel_xrgb8888_to_xrgb2101010(color); case DRM_FORMAT_ARGB2101010: return drm_pixel_xrgb8888_to_argb2101010(color); case DRM_FORMAT_ABGR2101010: return drm_pixel_xrgb8888_to_abgr2101010(color); default: WARN_ONCE(1, "Can't convert to %p4cc\n", &format); return 0; }}EXPORT_SYMBOL(drm_draw_color_from_xrgb8888); /* * Blit functions */void drm_draw_blit16(struct iosys_map *dmap, unsigned int dpitch, const u8 *sbuf8, unsigned int spitch, unsigned int height, unsigned int width, unsigned int scale, u16 fg16){ unsigned int y, x; for (y = 0; y < height; y++) for (x = 0; x < width; x++) if (drm_draw_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, fg16);}EXPORT_SYMBOL(drm_draw_blit16); void drm_draw_blit24(struct iosys_map *dmap, unsigned int dpitch, const u8 *sbuf8, unsigned int spitch, unsigned int height, unsigned int width, unsigned int scale, u32 fg32){ unsigned int y, x; for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { u32 off = y * dpitch + x * 3; if (drm_draw_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) { /* write blue-green-red to output in little endianness */ iosys_map_wr(dmap, off, u8, (fg32 & 0x000000FF) >> 0); iosys_map_wr(dmap, off + 1, u8, (fg32 & 0x0000FF00) >> 8); iosys_map_wr(dmap, off + 2, u8, (fg32 & 0x00FF0000) >> 16); } } }}EXPORT_SYMBOL(drm_draw_blit24); void drm_draw_blit32(struct iosys_map *dmap, unsigned int dpitch, const u8 *sbuf8, unsigned int spitch, unsigned int height, unsigned int width, unsigned int scale, u32 fg32){ unsigned int y, x; for (y = 0; y < height; y++) for (x = 0; x < width; x++) if (drm_draw_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, fg32);}EXPORT_SYMBOL(drm_draw_blit32); /* * Fill functions */void drm_draw_fill16(struct iosys_map *dmap, unsigned int dpitch, unsigned int height, unsigned int width, u16 color){ unsigned int y, x; for (y = 0; y < height; y++) for (x = 0; x < width; x++) iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, color);}EXPORT_SYMBOL(drm_draw_fill16); void drm_draw_fill24(struct iosys_map *dmap, unsigned int dpitch, unsigned int height, unsigned int width, u32 color){ unsigned int y, x; for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { unsigned int off = y * dpitch + x * 3; /* write blue-green-red to output in little endianness */ iosys_map_wr(dmap, off, u8, (color & 0x000000FF) >> 0); iosys_map_wr(dmap, off + 1, u8, (color & 0x0000FF00) >> 8); iosys_map_wr(dmap, off + 2, u8, (color & 0x00FF0000) >> 16); } }}EXPORT_SYMBOL(drm_draw_fill24); void drm_draw_fill32(struct iosys_map *dmap, unsigned int dpitch, unsigned int height, unsigned int width, u32 color){ unsigned int y, x; for (y = 0; y < height; y++) for (x = 0; x < width; x++) iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, color);}EXPORT_SYMBOL(drm_draw_fill32);
// SPDX-License-Identifier: GPL-2.0 or MIT
/*
* Copyright (c) 2023 Red Hat.
* Author: Jocelyn Falempe <jfalempe@redhat.com>
*/
#include <linux/bits.h>
#include <linux/bug.h>
#include <linux/export.h>
#include <linux/iosys-map.h>
#include <linux/types.h>
#include <drm/drm_fourcc.h>
#include "drm_draw_internal.h"
#include "drm_format_internal.h"
/**
* drm_draw_can_convert_from_xrgb8888 - check if xrgb8888 can be converted to the desired format
* @format: format
*
* Returns:
* True if XRGB8888 can be converted to the specified format, false otherwise.
*/
bool drm_draw_can_convert_from_xrgb8888(u32 format)
{
switch (format) {
case DRM_FORMAT_RGB565:
case DRM_FORMAT_RGBA5551:
case DRM_FORMAT_XRGB1555:
case DRM_FORMAT_ARGB1555:
case DRM_FORMAT_RGB888:
case DRM_FORMAT_XRGB8888:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_XBGR8888:
case DRM_FORMAT_ABGR8888:
case DRM_FORMAT_XRGB2101010:
case DRM_FORMAT_ARGB2101010:
case DRM_FORMAT_ABGR2101010:
return true;
default:
return false;
}
}
EXPORT_SYMBOL(drm_draw_can_convert_from_xrgb8888);
/**
* drm_draw_color_from_xrgb8888 - convert one pixel from xrgb8888 to the desired format
* @color: input color, in xrgb8888 format
* @format: output format
*
* Returns:
* Color in the format specified, casted to u32.
* Or 0 if the format is not supported.
*/
u32 drm_draw_color_from_xrgb8888(u32 color, u32 format)
{
switch (format) {
case DRM_FORMAT_RGB565:
return drm_pixel_xrgb8888_to_rgb565(color);
case DRM_FORMAT_RGBA5551:
return drm_pixel_xrgb8888_to_rgba5551(color);
case DRM_FORMAT_XRGB1555:
return drm_pixel_xrgb8888_to_xrgb1555(color);
case DRM_FORMAT_ARGB1555:
return drm_pixel_xrgb8888_to_argb1555(color);
case DRM_FORMAT_RGB888:
case DRM_FORMAT_XRGB8888:
return color;
case DRM_FORMAT_ARGB8888:
return drm_pixel_xrgb8888_to_argb8888(color);
case DRM_FORMAT_XBGR8888:
return drm_pixel_xrgb8888_to_xbgr8888(color);
case DRM_FORMAT_ABGR8888:
return drm_pixel_xrgb8888_to_abgr8888(color);
case DRM_FORMAT_XRGB2101010:
return drm_pixel_xrgb8888_to_xrgb2101010(color);
case DRM_FORMAT_ARGB2101010:
return drm_pixel_xrgb8888_to_argb2101010(color);
case DRM_FORMAT_ABGR2101010:
return drm_pixel_xrgb8888_to_abgr2101010(color);
default:
WARN_ONCE(1, "Can't convert to %p4cc\n", &format);
return 0;
}
}
EXPORT_SYMBOL(drm_draw_color_from_xrgb8888);
/*
* Blit functions
*/
void drm_draw_blit16(struct iosys_map *dmap, unsigned int dpitch,
const u8 *sbuf8, unsigned int spitch,
unsigned int height, unsigned int width,
unsigned int scale, u16 fg16)
{
unsigned int y, x;
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
if (drm_draw_is_pixel_fg(sbuf8, spitch, x / scale, y / scale))
iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, fg16);
}
EXPORT_SYMBOL(drm_draw_blit16);
void drm_draw_blit24(struct iosys_map *dmap, unsigned int dpitch,
const u8 *sbuf8, unsigned int spitch,
unsigned int height, unsigned int width,
unsigned int scale, u32 fg32)
{
unsigned int y, x;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
u32 off = y * dpitch + x * 3;
if (drm_draw_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) {
/* write blue-green-red to output in little endianness */
iosys_map_wr(dmap, off, u8, (fg32 & 0x000000FF) >> 0);
iosys_map_wr(dmap, off + 1, u8, (fg32 & 0x0000FF00) >> 8);
iosys_map_wr(dmap, off + 2, u8, (fg32 & 0x00FF0000) >> 16);
}
}
}
}
EXPORT_SYMBOL(drm_draw_blit24);
void drm_draw_blit32(struct iosys_map *dmap, unsigned int dpitch,
const u8 *sbuf8, unsigned int spitch,
unsigned int height, unsigned int width,
unsigned int scale, u32 fg32)
{
unsigned int y, x;
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
if (drm_draw_is_pixel_fg(sbuf8, spitch, x / scale, y / scale))
iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, fg32);
}
EXPORT_SYMBOL(drm_draw_blit32);
/*
* Fill functions
*/
void drm_draw_fill16(struct iosys_map *dmap, unsigned int dpitch,
unsigned int height, unsigned int width,
u16 color)
{
unsigned int y, x;
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, color);
}
EXPORT_SYMBOL(drm_draw_fill16);
void drm_draw_fill24(struct iosys_map *dmap, unsigned int dpitch,
unsigned int height, unsigned int width,
u32 color)
{
unsigned int y, x;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
unsigned int off = y * dpitch + x * 3;
/* write blue-green-red to output in little endianness */
iosys_map_wr(dmap, off, u8, (color & 0x000000FF) >> 0);
iosys_map_wr(dmap, off + 1, u8, (color & 0x0000FF00) >> 8);
iosys_map_wr(dmap, off + 2, u8, (color & 0x00FF0000) >> 16);
}
}
}
EXPORT_SYMBOL(drm_draw_fill24);
void drm_draw_fill32(struct iosys_map *dmap, unsigned int dpitch,
unsigned int height, unsigned int width,
u32 color)
{
unsigned int y, x;
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, color);
}
EXPORT_SYMBOL(drm_draw_fill32);