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e03b56863d
Replace a config-time define with a compile time condition define (compatible with clang and gcc) that must be declared prior to its usage. This avoids having a global configure time define, but also prevents from bad usage, if the config header wasn't included before. This can help to make some code independent from qemu too. gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> [ For the s390x parts I'm involved in ] Acked-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
302 lines
6.4 KiB
C
302 lines
6.4 KiB
C
/*
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* Arm PrimeCell PL110 Color LCD Controller
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*
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* Copyright (c) 2005 CodeSourcery, LLC.
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* Written by Paul Brook
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*
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* This code is licensed under the GNU LGPL
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*
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* Framebuffer format conversion routines.
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*/
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#ifndef ORDER
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#error "pl110_template.h is only for inclusion by pl110.c"
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#endif
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#if ORDER == 0
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#define NAME glue(lblp_, BORDER)
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#if HOST_BIG_ENDIAN
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#define SWAP_WORDS 1
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#endif
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#elif ORDER == 1
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#define NAME glue(bbbp_, BORDER)
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#if !HOST_BIG_ENDIAN
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#define SWAP_WORDS 1
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#endif
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#else
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#define SWAP_PIXELS 1
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#define NAME glue(lbbp_, BORDER)
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#if HOST_BIG_ENDIAN
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#define SWAP_WORDS 1
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#endif
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#endif
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#define FN_2(x, y) FN(x, y) FN(x+1, y)
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#define FN_4(x, y) FN_2(x, y) FN_2(x+2, y)
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#define FN_8(y) FN_4(0, y) FN_4(4, y)
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static void glue(pl110_draw_line1_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
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{
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uint32_t *palette = opaque;
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uint32_t data;
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while (width > 0) {
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data = *(uint32_t *)src;
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#ifdef SWAP_PIXELS
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#define FN(x, y) COPY_PIXEL(d, palette[(data >> (y + 7 - (x))) & 1]);
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#else
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#define FN(x, y) COPY_PIXEL(d, palette[(data >> ((x) + y)) & 1]);
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#endif
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#ifdef SWAP_WORDS
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FN_8(24)
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FN_8(16)
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FN_8(8)
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FN_8(0)
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#else
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FN_8(0)
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FN_8(8)
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FN_8(16)
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FN_8(24)
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#endif
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#undef FN
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width -= 32;
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src += 4;
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}
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}
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static void glue(pl110_draw_line2_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
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{
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uint32_t *palette = opaque;
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uint32_t data;
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while (width > 0) {
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data = *(uint32_t *)src;
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#ifdef SWAP_PIXELS
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#define FN(x, y) COPY_PIXEL(d, palette[(data >> (y + 6 - (x)*2)) & 3]);
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#else
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#define FN(x, y) COPY_PIXEL(d, palette[(data >> ((x)*2 + y)) & 3]);
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#endif
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#ifdef SWAP_WORDS
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FN_4(0, 24)
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FN_4(0, 16)
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FN_4(0, 8)
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FN_4(0, 0)
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#else
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FN_4(0, 0)
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FN_4(0, 8)
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FN_4(0, 16)
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FN_4(0, 24)
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#endif
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#undef FN
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width -= 16;
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src += 4;
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}
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}
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static void glue(pl110_draw_line4_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
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{
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uint32_t *palette = opaque;
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uint32_t data;
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while (width > 0) {
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data = *(uint32_t *)src;
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#ifdef SWAP_PIXELS
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#define FN(x, y) COPY_PIXEL(d, palette[(data >> (y + 4 - (x)*4)) & 0xf]);
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#else
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#define FN(x, y) COPY_PIXEL(d, palette[(data >> ((x)*4 + y)) & 0xf]);
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#endif
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#ifdef SWAP_WORDS
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FN_2(0, 24)
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FN_2(0, 16)
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FN_2(0, 8)
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FN_2(0, 0)
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#else
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FN_2(0, 0)
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FN_2(0, 8)
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FN_2(0, 16)
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FN_2(0, 24)
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#endif
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#undef FN
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width -= 8;
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src += 4;
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}
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}
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static void glue(pl110_draw_line8_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
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{
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uint32_t *palette = opaque;
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uint32_t data;
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while (width > 0) {
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data = *(uint32_t *)src;
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#define FN(x) COPY_PIXEL(d, palette[(data >> (x)) & 0xff]);
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#ifdef SWAP_WORDS
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FN(24)
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FN(16)
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FN(8)
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FN(0)
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#else
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FN(0)
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FN(8)
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FN(16)
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FN(24)
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#endif
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#undef FN
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width -= 4;
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src += 4;
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}
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}
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static void glue(pl110_draw_line16_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
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{
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uint32_t data;
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unsigned int r, g, b;
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while (width > 0) {
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data = *(uint32_t *)src;
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#ifdef SWAP_WORDS
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data = bswap32(data);
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#endif
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#ifdef RGB
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#define LSB r
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#define MSB b
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#else
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#define LSB b
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#define MSB r
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#endif
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#if 0
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LSB = data & 0x1f;
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data >>= 5;
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g = data & 0x3f;
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data >>= 6;
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MSB = data & 0x1f;
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data >>= 5;
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#else
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LSB = (data & 0x1f) << 3;
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data >>= 5;
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g = (data & 0x3f) << 2;
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data >>= 6;
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MSB = (data & 0x1f) << 3;
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data >>= 5;
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#endif
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COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
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LSB = (data & 0x1f) << 3;
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data >>= 5;
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g = (data & 0x3f) << 2;
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data >>= 6;
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MSB = (data & 0x1f) << 3;
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data >>= 5;
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COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
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#undef MSB
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#undef LSB
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width -= 2;
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src += 4;
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}
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}
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static void glue(pl110_draw_line32_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
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{
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uint32_t data;
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unsigned int r, g, b;
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while (width > 0) {
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data = *(uint32_t *)src;
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#ifdef RGB
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#define LSB r
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#define MSB b
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#else
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#define LSB b
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#define MSB r
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#endif
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#ifndef SWAP_WORDS
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LSB = data & 0xff;
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g = (data >> 8) & 0xff;
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MSB = (data >> 16) & 0xff;
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#else
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LSB = (data >> 24) & 0xff;
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g = (data >> 16) & 0xff;
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MSB = (data >> 8) & 0xff;
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#endif
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COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
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#undef MSB
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#undef LSB
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width--;
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src += 4;
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}
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}
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static void glue(pl110_draw_line16_555_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
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{
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/* RGB 555 plus an intensity bit (which we ignore) */
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uint32_t data;
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unsigned int r, g, b;
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while (width > 0) {
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data = *(uint32_t *)src;
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#ifdef SWAP_WORDS
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data = bswap32(data);
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#endif
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#ifdef RGB
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#define LSB r
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#define MSB b
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#else
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#define LSB b
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#define MSB r
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#endif
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LSB = (data & 0x1f) << 3;
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data >>= 5;
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g = (data & 0x1f) << 3;
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data >>= 5;
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MSB = (data & 0x1f) << 3;
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data >>= 5;
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COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
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LSB = (data & 0x1f) << 3;
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data >>= 5;
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g = (data & 0x1f) << 3;
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data >>= 5;
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MSB = (data & 0x1f) << 3;
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data >>= 6;
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COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
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#undef MSB
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#undef LSB
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width -= 2;
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src += 4;
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}
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}
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static void glue(pl110_draw_line12_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
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{
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/* RGB 444 with 4 bits of zeroes at the top of each halfword */
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uint32_t data;
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unsigned int r, g, b;
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while (width > 0) {
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data = *(uint32_t *)src;
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#ifdef SWAP_WORDS
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data = bswap32(data);
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#endif
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#ifdef RGB
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#define LSB r
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#define MSB b
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#else
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#define LSB b
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#define MSB r
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#endif
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LSB = (data & 0xf) << 4;
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data >>= 4;
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g = (data & 0xf) << 4;
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data >>= 4;
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MSB = (data & 0xf) << 4;
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data >>= 8;
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COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
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LSB = (data & 0xf) << 4;
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data >>= 4;
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g = (data & 0xf) << 4;
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data >>= 4;
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MSB = (data & 0xf) << 4;
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data >>= 8;
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COPY_PIXEL(d, rgb_to_pixel32(r, g, b));
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#undef MSB
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#undef LSB
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width -= 2;
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src += 4;
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}
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}
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#undef SWAP_PIXELS
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#undef NAME
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#undef SWAP_WORDS
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#undef ORDER
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