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/*
* Arm PrimeCell PL110 Color LCD Controller
*
* Copyright (c) 2005 CodeSourcery, LLC.
* Written by Paul Brook
*
* This code is licensed under the GNU LGPL
*
* Framebuffer format conversion routines.
*/
#ifndef ORDER
#error "pl110_template.h is only for inclusion by pl110.c"
#endif
#if ORDER == 0
#define NAME glue(lblp_, BORDER)
#if HOST_BIG_ENDIAN
#define SWAP_WORDS 1
#endif
#elif ORDER == 1
#define NAME glue(bbbp_, BORDER)
#if !HOST_BIG_ENDIAN
#define SWAP_WORDS 1
#endif
#else
#define SWAP_PIXELS 1
#define NAME glue(lbbp_, BORDER)
#if HOST_BIG_ENDIAN
#define SWAP_WORDS 1
#endif
#endif
#define FN_2(x, y) FN(x, y) FN(x+1, y)
#define FN_4(x, y) FN_2(x, y) FN_2(x+2, y)
#define FN_8(y) FN_4(0, y) FN_4(4, y)
static void glue(pl110_draw_line1_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t *palette = opaque;
uint32_t data;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_PIXELS
#define FN(x, y) COPY_PIXEL(d, palette[(data >> (y + 7 - (x))) & 1]);
#else
#define FN(x, y) COPY_PIXEL(d, palette[(data >> ((x) + y)) & 1]);
#endif
#ifdef SWAP_WORDS
FN_8(24)
FN_8(16)
FN_8(8)
FN_8(0)
#else
FN_8(0)
FN_8(8)
FN_8(16)
FN_8(24)
#endif
#undef FN
width -= 32;
src += 4;
}
}
static void glue(pl110_draw_line2_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t *palette = opaque;
uint32_t data;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_PIXELS
#define FN(x, y) COPY_PIXEL(d, palette[(data >> (y + 6 - (x)*2)) & 3]);
#else
#define FN(x, y) COPY_PIXEL(d, palette[(data >> ((x)*2 + y)) & 3]);
#endif
#ifdef SWAP_WORDS
FN_4(0, 24)
FN_4(0, 16)
FN_4(0, 8)
FN_4(0, 0)
#else
FN_4(0, 0)
FN_4(0, 8)
FN_4(0, 16)
FN_4(0, 24)
#endif
#undef FN
width -= 16;
src += 4;
}
}
static void glue(pl110_draw_line4_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t *palette = opaque;
uint32_t data;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_PIXELS
#define FN(x, y) COPY_PIXEL(d, palette[(data >> (y + 4 - (x)*4)) & 0xf]);
#else
#define FN(x, y) COPY_PIXEL(d, palette[(data >> ((x)*4 + y)) & 0xf]);
#endif
#ifdef SWAP_WORDS
FN_2(0, 24)
FN_2(0, 16)
FN_2(0, 8)
FN_2(0, 0)
#else
FN_2(0, 0)
FN_2(0, 8)
FN_2(0, 16)
FN_2(0, 24)
#endif
#undef FN
width -= 8;
src += 4;
}
}
static void glue(pl110_draw_line8_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t *palette = opaque;
uint32_t data;
while (width > 0) {
data = *(uint32_t *)src;
#define FN(x) COPY_PIXEL(d, palette[(data >> (x)) & 0xff]);
#ifdef SWAP_WORDS
FN(24)
FN(16)
FN(8)
FN(0)
#else
FN(0)
FN(8)
FN(16)
FN(24)
#endif
#undef FN
width -= 4;
src += 4;
}
}
static void glue(pl110_draw_line16_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t data;
unsigned int r, g, b;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_WORDS
data = bswap32(data);
#endif
#ifdef RGB
#define LSB r
#define MSB b
#else
#define LSB b
#define MSB r
#endif
#if 0
LSB = data & 0x1f;
data >>= 5;
g = data & 0x3f;
data >>= 6;
MSB = data & 0x1f;
data >>= 5;
#else
LSB = (data & 0x1f) << 3;
data >>= 5;
g = (data & 0x3f) << 2;
data >>= 6;
MSB = (data & 0x1f) << 3;
data >>= 5;
#endif
COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
LSB = (data & 0x1f) << 3;
data >>= 5;
g = (data & 0x3f) << 2;
data >>= 6;
MSB = (data & 0x1f) << 3;
data >>= 5;
COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
#undef MSB
#undef LSB
width -= 2;
src += 4;
}
}
static void glue(pl110_draw_line32_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t data;
unsigned int r, g, b;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef RGB
#define LSB r
#define MSB b
#else
#define LSB b
#define MSB r
#endif
#ifndef SWAP_WORDS
LSB = data & 0xff;
g = (data >> 8) & 0xff;
MSB = (data >> 16) & 0xff;
#else
LSB = (data >> 24) & 0xff;
g = (data >> 16) & 0xff;
MSB = (data >> 8) & 0xff;
#endif
COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
#undef MSB
#undef LSB
width--;
src += 4;
}
}
static void glue(pl110_draw_line16_555_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
/* RGB 555 plus an intensity bit (which we ignore) */
uint32_t data;
unsigned int r, g, b;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_WORDS
data = bswap32(data);
#endif
#ifdef RGB
#define LSB r
#define MSB b
#else
#define LSB b
#define MSB r
#endif
LSB = (data & 0x1f) << 3;
data >>= 5;
g = (data & 0x1f) << 3;
data >>= 5;
MSB = (data & 0x1f) << 3;
data >>= 5;
COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
LSB = (data & 0x1f) << 3;
data >>= 5;
g = (data & 0x1f) << 3;
data >>= 5;
MSB = (data & 0x1f) << 3;
data >>= 6;
COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
#undef MSB
#undef LSB
width -= 2;
src += 4;
}
}
static void glue(pl110_draw_line12_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
/* RGB 444 with 4 bits of zeroes at the top of each halfword */
uint32_t data;
unsigned int r, g, b;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_WORDS
data = bswap32(data);
#endif
#ifdef RGB
#define LSB r
#define MSB b
#else
#define LSB b
#define MSB r
#endif
LSB = (data & 0xf) << 4;
data >>= 4;
g = (data & 0xf) << 4;
data >>= 4;
MSB = (data & 0xf) << 4;
data >>= 8;
COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
LSB = (data & 0xf) << 4;
data >>= 4;
g = (data & 0xf) << 4;
data >>= 4;
MSB = (data & 0xf) << 4;
data >>= 8;
COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
#undef MSB
#undef LSB
width -= 2;
src += 4;
}
}
#undef SWAP_PIXELS
#undef NAME
#undef SWAP_WORDS
#undef ORDER
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