diff options
Diffstat (limited to 'hw/display/pxa2xx_lcd.c')
| -rw-r--r-- | hw/display/pxa2xx_lcd.c | 520 |
1 files changed, 450 insertions, 70 deletions
diff --git a/hw/display/pxa2xx_lcd.c b/hw/display/pxa2xx_lcd.c index dfff994962..2887ce496b 100644 --- a/hw/display/pxa2xx_lcd.c +++ b/hw/display/pxa2xx_lcd.c @@ -45,7 +45,6 @@ struct PXA2xxLCDState { int invalidated; QemuConsole *con; - drawfn *line_fn[2]; int dest_width; int xres, yres; int pal_for; @@ -188,6 +187,435 @@ typedef struct QEMU_PACKED { #define LDCMD_SOFINT (1 << 22) #define LDCMD_PAL (1 << 26) +/* Size of a pixel in the QEMU UI output surface, in bytes */ +#define DEST_PIXEL_WIDTH 4 + +/* Line drawing code to handle the various possible guest pixel formats */ + +# define SKIP_PIXEL(to) do { to += deststep; } while (0) +# define COPY_PIXEL(to, from) \ + do { \ + *(uint32_t *) to = from; \ + SKIP_PIXEL(to); \ + } while (0) + +#ifdef HOST_WORDS_BIGENDIAN +# define SWAP_WORDS 1 +#endif + +#define FN_2(x) FN(x + 1) FN(x) +#define FN_4(x) FN_2(x + 2) FN_2(x) + +static void pxa2xx_draw_line2(void *opaque, uint8_t *dest, 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(dest, palette[(data >> ((x) * 2)) & 3]); +#ifdef SWAP_WORDS + FN_4(12) + FN_4(8) + FN_4(4) + FN_4(0) +#else + FN_4(0) + FN_4(4) + FN_4(8) + FN_4(12) +#endif +#undef FN + width -= 16; + src += 4; + } +} + +static void pxa2xx_draw_line4(void *opaque, uint8_t *dest, 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(dest, palette[(data >> ((x) * 4)) & 0xf]); +#ifdef SWAP_WORDS + FN_2(6) + FN_2(4) + FN_2(2) + FN_2(0) +#else + FN_2(0) + FN_2(2) + FN_2(4) + FN_2(6) +#endif +#undef FN + width -= 8; + src += 4; + } +} + +static void pxa2xx_draw_line8(void *opaque, uint8_t *dest, 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(dest, 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 pxa2xx_draw_line16(void *opaque, uint8_t *dest, 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 + b = (data & 0x1f) << 3; + data >>= 5; + g = (data & 0x3f) << 2; + data >>= 6; + r = (data & 0x1f) << 3; + data >>= 5; + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + b = (data & 0x1f) << 3; + data >>= 5; + g = (data & 0x3f) << 2; + data >>= 6; + r = (data & 0x1f) << 3; + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + width -= 2; + src += 4; + } +} + +static void pxa2xx_draw_line16t(void *opaque, uint8_t *dest, 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 + b = (data & 0x1f) << 3; + data >>= 5; + g = (data & 0x1f) << 3; + data >>= 5; + r = (data & 0x1f) << 3; + data >>= 5; + if (data & 1) { + SKIP_PIXEL(dest); + } else { + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + } + data >>= 1; + b = (data & 0x1f) << 3; + data >>= 5; + g = (data & 0x1f) << 3; + data >>= 5; + r = (data & 0x1f) << 3; + data >>= 5; + if (data & 1) { + SKIP_PIXEL(dest); + } else { + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + } + width -= 2; + src += 4; + } +} + +static void pxa2xx_draw_line18(void *opaque, uint8_t *dest, 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 + b = (data & 0x3f) << 2; + data >>= 6; + g = (data & 0x3f) << 2; + data >>= 6; + r = (data & 0x3f) << 2; + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + width -= 1; + src += 4; + } +} + +/* The wicked packed format */ +static void pxa2xx_draw_line18p(void *opaque, uint8_t *dest, const uint8_t *src, + int width, int deststep) +{ + uint32_t data[3]; + unsigned int r, g, b; + while (width > 0) { + data[0] = *(uint32_t *) src; + src += 4; + data[1] = *(uint32_t *) src; + src += 4; + data[2] = *(uint32_t *) src; + src += 4; +#ifdef SWAP_WORDS + data[0] = bswap32(data[0]); + data[1] = bswap32(data[1]); + data[2] = bswap32(data[2]); +#endif + b = (data[0] & 0x3f) << 2; + data[0] >>= 6; + g = (data[0] & 0x3f) << 2; + data[0] >>= 6; + r = (data[0] & 0x3f) << 2; + data[0] >>= 12; + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + b = (data[0] & 0x3f) << 2; + data[0] >>= 6; + g = ((data[1] & 0xf) << 4) | (data[0] << 2); + data[1] >>= 4; + r = (data[1] & 0x3f) << 2; + data[1] >>= 12; + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + b = (data[1] & 0x3f) << 2; + data[1] >>= 6; + g = (data[1] & 0x3f) << 2; + data[1] >>= 6; + r = ((data[2] & 0x3) << 6) | (data[1] << 2); + data[2] >>= 8; + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + b = (data[2] & 0x3f) << 2; + data[2] >>= 6; + g = (data[2] & 0x3f) << 2; + data[2] >>= 6; + r = data[2] << 2; + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + width -= 4; + } +} + +static void pxa2xx_draw_line19(void *opaque, uint8_t *dest, 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 + b = (data & 0x3f) << 2; + data >>= 6; + g = (data & 0x3f) << 2; + data >>= 6; + r = (data & 0x3f) << 2; + data >>= 6; + if (data & 1) { + SKIP_PIXEL(dest); + } else { + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + } + width -= 1; + src += 4; + } +} + +/* The wicked packed format */ +static void pxa2xx_draw_line19p(void *opaque, uint8_t *dest, const uint8_t *src, + int width, int deststep) +{ + uint32_t data[3]; + unsigned int r, g, b; + while (width > 0) { + data[0] = *(uint32_t *) src; + src += 4; + data[1] = *(uint32_t *) src; + src += 4; + data[2] = *(uint32_t *) src; + src += 4; +# ifdef SWAP_WORDS + data[0] = bswap32(data[0]); + data[1] = bswap32(data[1]); + data[2] = bswap32(data[2]); +# endif + b = (data[0] & 0x3f) << 2; + data[0] >>= 6; + g = (data[0] & 0x3f) << 2; + data[0] >>= 6; + r = (data[0] & 0x3f) << 2; + data[0] >>= 6; + if (data[0] & 1) { + SKIP_PIXEL(dest); + } else { + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + } + data[0] >>= 6; + b = (data[0] & 0x3f) << 2; + data[0] >>= 6; + g = ((data[1] & 0xf) << 4) | (data[0] << 2); + data[1] >>= 4; + r = (data[1] & 0x3f) << 2; + data[1] >>= 6; + if (data[1] & 1) { + SKIP_PIXEL(dest); + } else { + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + } + data[1] >>= 6; + b = (data[1] & 0x3f) << 2; + data[1] >>= 6; + g = (data[1] & 0x3f) << 2; + data[1] >>= 6; + r = ((data[2] & 0x3) << 6) | (data[1] << 2); + data[2] >>= 2; + if (data[2] & 1) { + SKIP_PIXEL(dest); + } else { + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + } + data[2] >>= 6; + b = (data[2] & 0x3f) << 2; + data[2] >>= 6; + g = (data[2] & 0x3f) << 2; + data[2] >>= 6; + r = data[2] << 2; + data[2] >>= 6; + if (data[2] & 1) { + SKIP_PIXEL(dest); + } else { + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + } + width -= 4; + } +} + +static void pxa2xx_draw_line24(void *opaque, uint8_t *dest, 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 + b = data & 0xff; + data >>= 8; + g = data & 0xff; + data >>= 8; + r = data & 0xff; + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + width -= 1; + src += 4; + } +} + +static void pxa2xx_draw_line24t(void *opaque, uint8_t *dest, 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 + b = (data & 0x7f) << 1; + data >>= 7; + g = data & 0xff; + data >>= 8; + r = data & 0xff; + data >>= 8; + if (data & 1) { + SKIP_PIXEL(dest); + } else { + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + } + width -= 1; + src += 4; + } +} + +static void pxa2xx_draw_line25(void *opaque, uint8_t *dest, 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 + b = data & 0xff; + data >>= 8; + g = data & 0xff; + data >>= 8; + r = data & 0xff; + data >>= 8; + if (data & 1) { + SKIP_PIXEL(dest); + } else { + COPY_PIXEL(dest, rgb_to_pixel32(r, g, b)); + } + width -= 1; + src += 4; + } +} + +/* Overlay planes disabled, no transparency */ +static drawfn pxa2xx_draw_fn_32[16] = { + [0 ... 0xf] = NULL, + [pxa_lcdc_2bpp] = pxa2xx_draw_line2, + [pxa_lcdc_4bpp] = pxa2xx_draw_line4, + [pxa_lcdc_8bpp] = pxa2xx_draw_line8, + [pxa_lcdc_16bpp] = pxa2xx_draw_line16, + [pxa_lcdc_18bpp] = pxa2xx_draw_line18, + [pxa_lcdc_18pbpp] = pxa2xx_draw_line18p, + [pxa_lcdc_24bpp] = pxa2xx_draw_line24, +}; + +/* Overlay planes enabled, transparency used */ +static drawfn pxa2xx_draw_fn_32t[16] = { + [0 ... 0xf] = NULL, + [pxa_lcdc_4bpp] = pxa2xx_draw_line4, + [pxa_lcdc_8bpp] = pxa2xx_draw_line8, + [pxa_lcdc_16bpp] = pxa2xx_draw_line16t, + [pxa_lcdc_19bpp] = pxa2xx_draw_line19, + [pxa_lcdc_19pbpp] = pxa2xx_draw_line19p, + [pxa_lcdc_24bpp] = pxa2xx_draw_line24t, + [pxa_lcdc_25bpp] = pxa2xx_draw_line25, +}; + +#undef COPY_PIXEL +#undef SKIP_PIXEL + +#ifdef SWAP_WORDS +# undef SWAP_WORDS +#endif + /* Route internal interrupt lines to the global IC */ static void pxa2xx_lcdc_int_update(PXA2xxLCDState *s) { @@ -674,14 +1102,21 @@ static void pxa2xx_palette_parse(PXA2xxLCDState *s, int ch, int bpp) } } +static inline drawfn pxa2xx_drawfn(PXA2xxLCDState *s) +{ + if (s->transp) { + return pxa2xx_draw_fn_32t[s->bpp]; + } else { + return pxa2xx_draw_fn_32[s->bpp]; + } +} + static void pxa2xx_lcdc_dma0_redraw_rot0(PXA2xxLCDState *s, hwaddr addr, int *miny, int *maxy) { DisplaySurface *surface = qemu_console_surface(s->con); int src_width, dest_width; - drawfn fn = NULL; - if (s->dest_width) - fn = s->line_fn[s->transp][s->bpp]; + drawfn fn = pxa2xx_drawfn(s); if (!fn) return; @@ -693,14 +1128,14 @@ static void pxa2xx_lcdc_dma0_redraw_rot0(PXA2xxLCDState *s, else if (s->bpp > pxa_lcdc_8bpp) src_width *= 2; - dest_width = s->xres * s->dest_width; + dest_width = s->xres * DEST_PIXEL_WIDTH; *miny = 0; if (s->invalidated) { framebuffer_update_memory_section(&s->fbsection, s->sysmem, addr, s->yres, src_width); } framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres, - src_width, dest_width, s->dest_width, + src_width, dest_width, DEST_PIXEL_WIDTH, s->invalidated, fn, s->dma_ch[0].palette, miny, maxy); } @@ -710,9 +1145,7 @@ static void pxa2xx_lcdc_dma0_redraw_rot90(PXA2xxLCDState *s, { DisplaySurface *surface = qemu_console_surface(s->con); int src_width, dest_width; - drawfn fn = NULL; - if (s->dest_width) - fn = s->line_fn[s->transp][s->bpp]; + drawfn fn = pxa2xx_drawfn(s); if (!fn) return; @@ -724,14 +1157,14 @@ static void pxa2xx_lcdc_dma0_redraw_rot90(PXA2xxLCDState *s, else if (s->bpp > pxa_lcdc_8bpp) src_width *= 2; - dest_width = s->yres * s->dest_width; + dest_width = s->yres * DEST_PIXEL_WIDTH; *miny = 0; if (s->invalidated) { framebuffer_update_memory_section(&s->fbsection, s->sysmem, addr, s->yres, src_width); } framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres, - src_width, s->dest_width, -dest_width, + src_width, DEST_PIXEL_WIDTH, -dest_width, s->invalidated, fn, s->dma_ch[0].palette, miny, maxy); @@ -742,10 +1175,7 @@ static void pxa2xx_lcdc_dma0_redraw_rot180(PXA2xxLCDState *s, { DisplaySurface *surface = qemu_console_surface(s->con); int src_width, dest_width; - drawfn fn = NULL; - if (s->dest_width) { - fn = s->line_fn[s->transp][s->bpp]; - } + drawfn fn = pxa2xx_drawfn(s); if (!fn) { return; } @@ -759,14 +1189,14 @@ static void pxa2xx_lcdc_dma0_redraw_rot180(PXA2xxLCDState *s, src_width *= 2; } - dest_width = s->xres * s->dest_width; + dest_width = s->xres * DEST_PIXEL_WIDTH; *miny = 0; if (s->invalidated) { framebuffer_update_memory_section(&s->fbsection, s->sysmem, addr, s->yres, src_width); } framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres, - src_width, -dest_width, -s->dest_width, + src_width, -dest_width, -DEST_PIXEL_WIDTH, s->invalidated, fn, s->dma_ch[0].palette, miny, maxy); } @@ -776,10 +1206,7 @@ static void pxa2xx_lcdc_dma0_redraw_rot270(PXA2xxLCDState *s, { DisplaySurface *surface = qemu_console_surface(s->con); int src_width, dest_width; - drawfn fn = NULL; - if (s->dest_width) { - fn = s->line_fn[s->transp][s->bpp]; - } + drawfn fn = pxa2xx_drawfn(s); if (!fn) { return; } @@ -793,14 +1220,14 @@ static void pxa2xx_lcdc_dma0_redraw_rot270(PXA2xxLCDState *s, src_width *= 2; } - dest_width = s->yres * s->dest_width; + dest_width = s->yres * DEST_PIXEL_WIDTH; *miny = 0; if (s->invalidated) { framebuffer_update_memory_section(&s->fbsection, s->sysmem, addr, s->yres, src_width); } framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres, - src_width, -s->dest_width, dest_width, + src_width, -DEST_PIXEL_WIDTH, dest_width, s->invalidated, fn, s->dma_ch[0].palette, miny, maxy); @@ -990,17 +1417,6 @@ static const VMStateDescription vmstate_pxa2xx_lcdc = { } }; -#define BITS 8 -#include "pxa2xx_template.h" -#define BITS 15 -#include "pxa2xx_template.h" -#define BITS 16 -#include "pxa2xx_template.h" -#define BITS 24 -#include "pxa2xx_template.h" -#define BITS 32 -#include "pxa2xx_template.h" - static const GraphicHwOps pxa2xx_ops = { .invalidate = pxa2xx_invalidate_display, .gfx_update = pxa2xx_update_display, @@ -1010,7 +1426,6 @@ PXA2xxLCDState *pxa2xx_lcdc_init(MemoryRegion *sysmem, hwaddr base, qemu_irq irq) { PXA2xxLCDState *s; - DisplaySurface *surface; s = (PXA2xxLCDState *) g_malloc0(sizeof(PXA2xxLCDState)); s->invalidated = 1; @@ -1024,41 +1439,6 @@ PXA2xxLCDState *pxa2xx_lcdc_init(MemoryRegion *sysmem, memory_region_add_subregion(sysmem, base, &s->iomem); s->con = graphic_console_init(NULL, 0, &pxa2xx_ops, s); - surface = qemu_console_surface(s->con); - - switch (surface_bits_per_pixel(surface)) { - case 0: - s->dest_width = 0; - break; - case 8: - s->line_fn[0] = pxa2xx_draw_fn_8; - s->line_fn[1] = pxa2xx_draw_fn_8t; - s->dest_width = 1; - break; - case 15: - s->line_fn[0] = pxa2xx_draw_fn_15; - s->line_fn[1] = pxa2xx_draw_fn_15t; - s->dest_width = 2; - break; - case 16: - s->line_fn[0] = pxa2xx_draw_fn_16; - s->line_fn[1] = pxa2xx_draw_fn_16t; - s->dest_width = 2; - break; - case 24: - s->line_fn[0] = pxa2xx_draw_fn_24; - s->line_fn[1] = pxa2xx_draw_fn_24t; - s->dest_width = 3; - break; - case 32: - s->line_fn[0] = pxa2xx_draw_fn_32; - s->line_fn[1] = pxa2xx_draw_fn_32t; - s->dest_width = 4; - break; - default: - fprintf(stderr, "%s: Bad color depth\n", __func__); - exit(1); - } vmstate_register(NULL, 0, &vmstate_pxa2xx_lcdc, s); |