diff options
Diffstat (limited to 'drivers/gdisp/framebuffer/gdisp_lld_framebuffer.c')
| -rw-r--r-- | drivers/gdisp/framebuffer/gdisp_lld_framebuffer.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/drivers/gdisp/framebuffer/gdisp_lld_framebuffer.c b/drivers/gdisp/framebuffer/gdisp_lld_framebuffer.c new file mode 100644 index 00000000..6e38b5f4 --- /dev/null +++ b/drivers/gdisp/framebuffer/gdisp_lld_framebuffer.c @@ -0,0 +1,175 @@ +/* + * This file is subject to the terms of the GFX License. If a copy of + * the license was not distributed with this file, you can obtain one at: + * + * http://ugfx.org/license.html + */ + +#include "gfx.h" + +#if GFX_USE_GDISP + +typedef struct fbInfo { + void * pixels; // The pixel buffer + coord_t linelen; // The number of bytes per display line + } fbInfo; + +#define GDISP_DRIVER_VMT GDISPVMT_framebuffer +#include "drivers/gdisp/framebuffer/gdisp_lld_config.h" +#include "src/gdisp/driver.h" +#include "board_framebuffer.h" + +typedef struct fbPriv { + fbInfo fbi; // Display information + } fbPriv; + +/*===========================================================================*/ +/* Driver local routines . */ +/*===========================================================================*/ + +#define PIXIL_POS(g, x, y) ((y) * ((fbPriv *)(g)->priv)->fbi.linelen + (x) * sizeof(LLDCOLOR_TYPE)) +#define PIXEL_ADDR(g, pos) ((LLDCOLOR_TYPE *)(((char *)((fbPriv *)(g)->priv)->fbi.pixels)+pos)) + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +LLDSPEC bool_t gdisp_lld_init(GDisplay *g) { + + // Initialize the private structure + if (!(g->priv = gfxAlloc(sizeof(fbPriv)))) + gfxHalt("GDISP Framebuffer: Failed to allocate private memory"); + ((fbPriv *)g->priv)->fbi.pixels = 0; + ((fbPriv *)g->priv)->fbi.linelen = 0; + + // Initialize the GDISP structure + g->g.Orientation = GDISP_ROTATE_0; + g->g.Powermode = powerOn; + g->board = 0; // preinitialize + board_init(g, &((fbPriv *)g->priv)->fbi); + + return TRUE; +} + +#if GDISP_HARDWARE_FLUSH + LLDSPEC void gdisp_lld_flush(GDisplay *g) { + board_flush(g); + } +#endif + +LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) { + unsigned pos; + + #if GDISP_NEED_CONTROL + switch(g->g.Orientation) { + case GDISP_ROTATE_0: + default: + pos = PIXIL_POS(g, g->p.x, g->p.y); + break; + case GDISP_ROTATE_90: + pos = PIXIL_POS(g, g->p.y, g->g.Width-g->p.x-1); + break; + case GDISP_ROTATE_180: + pos = PIXIL_POS(g, g->g.Width-g->p.x-1, g->g.Height-g->p.y-1); + break; + case GDISP_ROTATE_270: + pos = PIXIL_POS(g, g->g.Height-g->p.y-1, g->p.x); + break; + } + #else + pos = PIXIL_POS(g, g->p.x, g->p.y); + #endif + + PIXEL_ADDR(g, pos)[0] = gdispColor2Native(g->p.color); +} + +LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay *g) { + unsigned pos; + LLDCOLOR_TYPE color; + + #if GDISP_NEED_CONTROL + switch(g->g.Orientation) { + case GDISP_ROTATE_0: + default: + pos = PIXIL_POS(g, g->p.x, g->p.y); + break; + case GDISP_ROTATE_90: + pos = PIXIL_POS(g, g->p.y, g->g.Width-g->p.x-1); + break; + case GDISP_ROTATE_180: + pos = PIXIL_POS(g, g->g.Width-g->p.x-1, g->g.Height-g->p.y-1); + break; + case GDISP_ROTATE_270: + pos = PIXIL_POS(g, g->g.Height-g->p.y-1, g->p.x); + break; + } + #else + pos = PIXIL_POS(g, g->p.x, g->p.y); + #endif + + color = PIXEL_ADDR(g, pos)[0]; + return gdispNative2Color(color); +} + +#if GDISP_NEED_CONTROL + LLDSPEC void gdisp_lld_control(GDisplay *g) { + switch(g->p.x) { + case GDISP_CONTROL_POWER: + if (g->g.Powermode == (powermode_t)g->p.ptr) + return; + switch((powermode_t)g->p.ptr) { + case powerOff: case powerOn: case powerSleep: case powerDeepSleep: + board_power(g, (powermode_t)g->p.ptr); + break; + default: + return; + } + g->g.Powermode = (powermode_t)g->p.ptr; + return; + + case GDISP_CONTROL_ORIENTATION: + if (g->g.Orientation == (orientation_t)g->p.ptr) + return; + switch((orientation_t)g->p.ptr) { + case GDISP_ROTATE_0: + case GDISP_ROTATE_180: + if (g->g.Orientation == GDISP_ROTATE_90 || g->g.Orientation == GDISP_ROTATE_270) { + coord_t tmp; + + tmp = g->g.Width; + g->g.Width = g->g.Height; + g->g.Height = tmp; + } + break; + case GDISP_ROTATE_90: + case GDISP_ROTATE_270: + if (g->g.Orientation == GDISP_ROTATE_0 || g->g.Orientation == GDISP_ROTATE_180) { + coord_t tmp; + + tmp = g->g.Width; + g->g.Width = g->g.Height; + g->g.Height = tmp; + } + break; + default: + return; + } + g->g.Orientation = (orientation_t)g->p.ptr; + return; + + case GDISP_CONTROL_BACKLIGHT: + if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100; + board_backlight(g, (unsigned)g->p.ptr); + g->g.Backlight = (unsigned)g->p.ptr; + return; + + case GDISP_CONTROL_CONTRAST: + if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100; + board_contrast(g, (unsigned)g->p.ptr); + g->g.Contrast = (unsigned)g->p.ptr; + return; + } + } +#endif + +#endif /* GFX_USE_GDISP */ |