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Diffstat (limited to 'hw/pl110_template.h')
| -rw-r--r-- | hw/pl110_template.h | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/hw/pl110_template.h b/hw/pl110_template.h new file mode 100644 index 0000000..db05035 --- /dev/null +++ b/hw/pl110_template.h @@ -0,0 +1,252 @@ +/* + * Arm PrimeCell PL110 Color LCD Controller + * + * Copyright (c) 2005 CodeSourcery, LLC. + * Written by Paul Brook + * + * This code is licenced under the GNU LGPL + * + * Framebuffer format conversion routines. + */ + +#ifndef ORDER + +#if BITS == 8 +#define COPY_PIXEL(to, from) *(to++) = from +#elif BITS == 15 || BITS == 16 +#define COPY_PIXEL(to, from) *(uint16_t *)to = from; to += 2; +#elif BITS == 24 +#define COPY_PIXEL(to, from) \ + *(to++) = from; *(to++) = (from) >> 8; *(to++) = (from) >> 16 +#elif BITS == 32 +#define COPY_PIXEL(to, from) *(uint32_t *)to = from; to += 4; +#else +#error unknown bit depth +#endif + +#define ORDER 0 +#include "pl110_template.h" +#define ORDER 1 +#include "pl110_template.h" +#define ORDER 2 +#include "pl110_template.h" + +static drawfn glue(pl110_draw_fn_,BITS)[18] = +{ + glue(pl110_draw_line1_lblp,BITS), + glue(pl110_draw_line2_lblp,BITS), + glue(pl110_draw_line4_lblp,BITS), + glue(pl110_draw_line8_lblp,BITS), + glue(pl110_draw_line16_lblp,BITS), + glue(pl110_draw_line32_lblp,BITS), + + glue(pl110_draw_line1_bbbp,BITS), + glue(pl110_draw_line2_bbbp,BITS), + glue(pl110_draw_line4_bbbp,BITS), + glue(pl110_draw_line8_bbbp,BITS), + glue(pl110_draw_line16_bbbp,BITS), + glue(pl110_draw_line32_bbbp,BITS), + + glue(pl110_draw_line1_lbbp,BITS), + glue(pl110_draw_line2_lbbp,BITS), + glue(pl110_draw_line4_lbbp,BITS), + glue(pl110_draw_line8_lbbp,BITS), + glue(pl110_draw_line16_lbbp,BITS), + glue(pl110_draw_line32_lbbp,BITS) +}; + +#undef BITS +#undef COPY_PIXEL + +#else + +#if ORDER == 0 +#define NAME glue(lblp, BITS) +#ifdef WORDS_BIGENDIAN +#define SWAP_WORDS 1 +#endif +#elif ORDER == 1 +#define NAME glue(bbbp, BITS) +#ifndef WORDS_BIGENDIAN +#define SWAP_WORDS 1 +#endif +#else +#define SWAP_PIXELS 1 +#define NAME glue(lbbp, BITS) +#ifdef WORDS_BIGENDIAN +#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+1, y) +#define FN_8(y) FN_4(0, y) FN_4(4, y) + +static void glue(pl110_draw_line1_,NAME)(uint32_t *pallette, uint8_t *d, const uint8_t *src, int width) +{ + uint32_t data; + while (width > 0) { + data = *(uint32_t *)src; +#ifdef SWAP_PIXELS +#define FN(x, y) COPY_PIXEL(d, pallette[(data >> (y + 7 - (x))) & 1]); +#else +#define FN(x, y) COPY_PIXEL(d, pallette[(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)(uint32_t *pallette, uint8_t *d, const uint8_t *src, int width) +{ + uint32_t data; + while (width > 0) { + data = *(uint32_t *)src; +#ifdef SWAP_PIXELS +#define FN(x, y) COPY_PIXEL(d, pallette[(data >> (y + 6 - (x)*2)) & 3]); +#else +#define FN(x, y) COPY_PIXEL(d, pallette[(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)(uint32_t *pallette, uint8_t *d, const uint8_t *src, int width) +{ + uint32_t data; + while (width > 0) { + data = *(uint32_t *)src; +#ifdef SWAP_PIXELS +#define FN(x, y) COPY_PIXEL(d, pallette[(data >> (y + 4 - (x)*4)) & 0xf]); +#else +#define FN(x, y) COPY_PIXEL(d, pallette[(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)(uint32_t *pallette, uint8_t *d, const uint8_t *src, int width) +{ + uint32_t data; + while (width > 0) { + data = *(uint32_t *)src; +#define FN(x) COPY_PIXEL(d, pallette[(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)(uint32_t *pallette, uint8_t *d, const uint8_t *src, int width) +{ + uint32_t data; + unsigned int r, g, b; + while (width > 0) { + data = *(uint32_t *)src; +#ifdef SWAP_WORDS + data = bswap32(data); +#endif +#if 0 + r = data & 0x1f; + data >>= 5; + g = data & 0x3f; + data >>= 6; + b = data & 0x1f; + data >>= 5; +#else + r = (data & 0x1f) << 3; + data >>= 5; + g = (data & 0x3f) << 2; + data >>= 6; + b = (data & 0x1f) << 3; + data >>= 5; +#endif + COPY_PIXEL(d, glue(rgb_to_pixel,BITS)(r, g, b)); + r = (data & 0x1f) << 3; + data >>= 5; + g = (data & 0x3f) << 2; + data >>= 6; + b = (data & 0x1f) << 3; + data >>= 5; + COPY_PIXEL(d, glue(rgb_to_pixel,BITS)(r, g, b)); + width -= 2; + src += 4; + } +} + +static void glue(pl110_draw_line32_,NAME)(uint32_t *pallette, uint8_t *d, const uint8_t *src, int width) +{ + uint32_t data; + unsigned int r, g, b; + while (width > 0) { + data = *(uint32_t *)src; +#ifdef SWAP_WORDS + r = data & 0xff; + g = (data >> 8) & 0xff; + b = (data >> 16) & 0xff; +#else + r = (data >> 24) & 0xff; + g = (data >> 16) & 0xff; + b = (data >> 8) & 0xff; +#endif + COPY_PIXEL(d, glue(rgb_to_pixel,BITS)(r, g, b)); + width--; + src += 4; + } +} + +#undef SWAP_PIXELS +#undef NAME +#undef SWAP_WORDS +#undef ORDER + +#endif |