On 19 February 2017 at 16:35, BALATON Zoltan <bala...@eik.bme.hu> wrote:
> Signed-off-by: BALATON Zoltan <bala...@eik.bme.hu>
> ---
> hw/display/sm501.c | 73
> +++++++++++++++++++++++++++---------------------------
> 1 file changed, 37 insertions(+), 36 deletions(-)
>
> diff --git a/hw/display/sm501.c b/hw/display/sm501.c
> index 1bd0303..2e1c4b7 100644
> --- a/hw/display/sm501.c
> +++ b/hw/display/sm501.c
> @@ -2,6 +2,7 @@
> * QEMU SM501 Device
> *
> * Copyright (c) 2008 Shin-ichiro KAWASAKI
> + * Copyright (c) 2016 BALATON Zoltan
> *
> * Permission is hereby granted, free of charge, to any person obtaining a
> copy
> * of this software and associated documentation files (the "Software"), to
> deal
> @@ -41,8 +42,11 @@
> * - Minimum implementation for Linux console : mmio regs and CRT layer.
> * - 2D graphics acceleration partially supported : only fill rectangle.
> *
> - * TODO:
> + * Status: 2016/12/04
> + * - Misc fixes: endianness, hardware cursor
> * - Panel support
> + *
> + * TODO:
> * - Touch panel support
> * - USB support
> * - UART support
> @@ -1297,53 +1301,62 @@ static inline int get_depth_index(DisplaySurface
> *surface)
> }
> }
>
> -static void sm501_draw_crt(SM501State *s)
> +static void sm501_update_display(void *opaque)
> {
> + SM501State *s = (SM501State *)opaque;
> DisplaySurface *surface = qemu_console_surface(s->con);
> int y, c_x, c_y;
> - uint8_t *hwc_src, *src = s->local_mem;
> - int width = get_width(s, 1);
> - int height = get_height(s, 1);
> - int src_bpp = get_bpp(s, 1);
> + int crt = (s->dc_crt_control & SM501_DC_CRT_CONTROL_SEL) ? 1 : 0;
> + int width = get_width(s, crt);
> + int height = get_height(s, crt);
> + int src_bpp = get_bpp(s, crt);
> int dst_bpp = surface_bytes_per_pixel(surface);
> - uint32_t *palette = (uint32_t *)&s->dc_palette[SM501_DC_CRT_PALETTE -
> - SM501_DC_PANEL_PALETTE];
> - uint8_t hwc_palette[3 * 3];
> - int ds_depth_index = get_depth_index(surface);
> + int dst_depth_index = get_depth_index(surface);
Please don't change variable names in the middle of a patch that's
adding new functionality, it makes the patch harder to review.
> draw_line_func *draw_line = NULL;
> draw_hwc_line_func *draw_hwc_line = NULL;
> int full_update = 0;
> int y_start = -1;
> ram_addr_t page_min = ~0l;
> ram_addr_t page_max = 0l;
> - ram_addr_t offset = 0;
> + ram_addr_t offset;
> + uint32_t *palette;
> + uint8_t hwc_palette[3 * 3];
> + uint8_t *hwc_src;
> +
> + if (!((crt ? s->dc_crt_control : s->dc_panel_control)
> + & SM501_DC_CRT_CONTROL_ENABLE)) {
> + return;
> + }
> +
> + palette = (uint32_t *)(crt ? &s->dc_palette[SM501_DC_CRT_PALETTE -
> + SM501_DC_PANEL_PALETTE]
> + : &s->dc_palette[0]);
>
> /* choose draw_line function */
> switch (src_bpp) {
> case 1:
> - draw_line = draw_line8_funcs[ds_depth_index];
> + draw_line = draw_line8_funcs[dst_depth_index];
> break;
> case 2:
> - draw_line = draw_line16_funcs[ds_depth_index];
> + draw_line = draw_line16_funcs[dst_depth_index];
> break;
> case 4:
> - draw_line = draw_line32_funcs[ds_depth_index];
> + draw_line = draw_line32_funcs[dst_depth_index];
> break;
> default:
> - printf("sm501 draw crt : invalid DC_CRT_CONTROL=%x.\n",
> - s->dc_crt_control);
> + printf("sm501 update display : invalid control register value.\n");
This shouldn't be in the same patch as "add panel" either.
> abort();
> break;
> }
>
> /* set up to draw hardware cursor */
> - if (is_hwc_enabled(s, 1)) {
> + if (is_hwc_enabled(s, crt)) {
> /* choose cursor draw line function */
> - draw_hwc_line = draw_hwc_line_funcs[ds_depth_index];
> - hwc_src = get_hwc_address(s, 1);
> - c_x = get_hwc_x(s, 1);
> - c_y = get_hwc_y(s, 1);
> - get_hwc_palette(s, 1, hwc_palette);
> + draw_hwc_line = draw_hwc_line_funcs[dst_depth_index];
> + hwc_src = get_hwc_address(s, crt);
> + c_x = get_hwc_x(s, crt);
> + c_y = get_hwc_y(s, crt);
> + get_hwc_palette(s, crt, hwc_palette);
> }
>
> /* adjust console size */
> @@ -1357,7 +1370,7 @@ static void sm501_draw_crt(SM501State *s)
>
> /* draw each line according to conditions */
> memory_region_sync_dirty_bitmap(&s->local_mem_region);
> - for (y = 0; y < height; y++) {
> + for (y = 0, offset = 0; y < height; y++, offset += width * src_bpp) {
> int update, update_hwc;
> ram_addr_t page0 = offset;
> ram_addr_t page1 = offset + width * src_bpp - 1;
> @@ -1375,7 +1388,7 @@ static void sm501_draw_crt(SM501State *s)
> d += y * width * dst_bpp;
>
> /* draw graphics layer */
> - draw_line(d, src, width, palette);
> + draw_line(d, s->local_mem + offset, width, palette);
>
> /* draw hardware cursor */
> if (update_hwc) {
> @@ -1398,9 +1411,6 @@ static void sm501_draw_crt(SM501State *s)
> y_start = -1;
> }
> }
> -
> - src += width * src_bpp;
> - offset += width * src_bpp;
> }
>
> /* complete flush to display */
> @@ -1416,15 +1426,6 @@ static void sm501_draw_crt(SM501State *s)
> }
> }
>
> -static void sm501_update_display(void *opaque)
> -{
> - SM501State *s = (SM501State *)opaque;
> -
> - if (s->dc_crt_control & SM501_DC_CRT_CONTROL_ENABLE) {
> - sm501_draw_crt(s);
> - }
> -}
> -
> static const GraphicHwOps sm501_ops = {
> .gfx_update = sm501_update_display,
> };
> --
> 2.7.4
>
thanks
-- PMM
