/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2002 by Alan Korr * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include "config.h" #include "lcd.h" #include "kernel.h" #include "thread.h" #include #include #include "file.h" #include "debug.h" #include "system.h" #include "font.h" #include "rbunicode.h" #include "bidi.h" #include "scroll_engine.h" #ifndef LCDFN /* Not compiling for remote - define macros for main LCD. */ #define LCDFN(fn) lcd_ ## fn #define FBFN(fn) fb_ ## fn #define FBSIZE FRAMEBUFFER_SIZE #define LCDM(ma) LCD_ ## ma #define LCDNAME "lcd_" #define LCDFB(x,y) FBADDR(x, y) #define MAIN_LCD #endif #ifdef MAIN_LCD #define THIS_STRIDE STRIDE_MAIN #else #define THIS_STRIDE STRIDE_REMOTE #endif #define CURRENT_VP LCDFN(current_viewport) /*** globals ***/ static FBFN(data) LCDFN(static_framebuffer)[LCDM(FBHEIGHT)][LCDM(FBWIDTH)] IRAM_LCDFRAMEBUFFER; static void *LCDFN(frameaddress_default)(int x, int y); /* shouldn't be changed unless you want system-wide framebuffer changes! */ struct frame_buffer_t LCDFN(framebuffer_default) = { .FBFN(ptr) = &LCDFN(static_framebuffer)[0][0], .get_address_fn = &LCDFN(frameaddress_default), .stride = THIS_STRIDE(LCDM(WIDTH), LCDM(HEIGHT)), .elems = (LCDM(FBWIDTH)*LCDM(FBHEIGHT)), }; static struct viewport default_vp = { .x = 0, .y = 0, .width = LCDM(WIDTH), .height = LCDM(HEIGHT), .font = FONT_SYSFIXED, .drawmode = DRMODE_SOLID, .buffer = NULL, }; struct viewport* CURRENT_VP; static void *LCDFN(frameaddress_default)(int x, int y) { /* the default expects a buffer the same size as the screen */ struct frame_buffer_t *fb = CURRENT_VP->buffer; #if defined(LCD_STRIDEFORMAT) && LCD_STRIDEFORMAT == VERTICAL_STRIDE size_t element = (x * LCDM(NATIVE_STRIDE)(fb->stride)) + y; #else size_t element = (y * LCDM(NATIVE_STRIDE)(fb->stride)) + x; #endif return fb->FBFN(ptr) + element;/*(element % fb->elems);*/ } /* LCD init */ void LCDFN(init)(void) { /* Initialize the viewport */ LCDFN(set_viewport)(NULL); LCDFN(clear_display)(); LCDFN(init_device)(); #ifdef MAIN_LCD scroll_init(); #endif } /*** parameter handling ***/ void LCDFN(set_drawmode)(int mode) { CURRENT_VP->drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID); } int LCDFN(get_drawmode)(void) { return CURRENT_VP->drawmode; } int LCDFN(getwidth)(void) { return CURRENT_VP->width; } int LCDFN(getheight)(void) { return CURRENT_VP->height; } void LCDFN(setfont)(int newfont) { CURRENT_VP->font = newfont; } int LCDFN(getfont)(void) { return CURRENT_VP->font; } int LCDFN(getstringsize)(const unsigned char *str, int *w, int *h) { return font_getstringsize(str, w, h, CURRENT_VP->font); } /*** low-level drawing functions ***/ static void setpixel(int x, int y) { *LCDFB(x,y>>3) |= BIT_N(y & 7); } static void clearpixel(int x, int y) { *LCDFB(x,y>>3) &= ~BIT_N(y & 7); } static void flippixel(int x, int y) { *LCDFB(x,y>>3) ^= BIT_N(y & 7); } static void nopixel(int x, int y) { (void)x; (void)y; } LCDFN(pixelfunc_type)* const LCDFN(pixelfuncs)[8] = { flippixel, nopixel, setpixel, setpixel, nopixel, clearpixel, nopixel, clearpixel }; static void ICODE_ATTR flipblock(FBFN(data) *address, unsigned mask, unsigned bits) { *address ^= bits & mask; } static void ICODE_ATTR bgblock(FBFN(data) *address, unsigned mask, unsigned bits) { *address &= bits | ~mask; } static void ICODE_ATTR fgblock(FBFN(data) *address, unsigned mask, unsigned bits) { *address |= bits & mask; } static void ICODE_ATTR solidblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *(char*)address; bits ^= data; *address = data ^ (bits & mask); } static void ICODE_ATTR flipinvblock(FBFN(data) *address, unsigned mask, unsigned bits) { *address ^= ~bits & mask; } static void ICODE_ATTR bginvblock(FBFN(data) *address, unsigned mask, unsigned bits) { *address &= ~(bits & mask); } static void ICODE_ATTR fginvblock(FBFN(data) *address, unsigned mask, unsigned bits) { *address |= ~bits & mask; } static void ICODE_ATTR solidinvblock(FBFN(data) *address, unsigned mask, unsigned bits) { unsigned data = *(char *)address; bits = ~bits ^ data; *address = data ^ (bits & mask); } LCDFN(blockfunc_type)* const LCDFN(blockfuncs)[8] = { flipblock, bgblock, fgblock, solidblock, flipinvblock, bginvblock, fginvblock, solidinvblock }; /*** drawing functions ***/ /* Clear the whole display */ void LCDFN(clear_display)(void) { unsigned bits = (CURRENT_VP->drawmode & DRMODE_INVERSEVID) ? 0xFFu : 0; memset(LCDFB(0, 0), bits, FBSIZE); LCDFN(scroll_info).lines = 0; } /* Clear the current viewport */ void LCDFN(clear_viewport)(void) { int oldmode; if (CURRENT_VP == &default_vp && default_vp.buffer == &LCDFN(framebuffer_default)) { LCDFN(clear_display)(); } else { oldmode = CURRENT_VP->drawmode; /* Invert the INVERSEVID bit and set basic mode to SOLID */ CURRENT_VP->drawmode = (~CURRENT_VP->drawmode & DRMODE_INVERSEVID) | DRMODE_SOLID; LCDFN(fillrect)(0, 0, CURRENT_VP->width, CURRENT_VP->height); CURRENT_VP->drawmode = oldmode; LCDFN(scroll_stop_viewport)(CURRENT_VP); } CURRENT_VP->flags &= ~(VP_FLAG_VP_SET_CLEAN); } /* Set a single pixel */ void LCDFN(drawpixel)(int x, int y) { if ( ((unsigned)x < (unsigned)CURRENT_VP->width) && ((unsigned)y < (unsigned)CURRENT_VP->height) #if defined(HAVE_VIEWPORT_CLIP) && ((unsigned)x < (unsigned)LCDM(WIDTH)) && ((unsigned)y < (unsigned)LCDM(HEIGHT)) #endif ) LCDFN(pixelfuncs)[CURRENT_VP->drawmode](CURRENT_VP->x + x, CURRENT_VP->y + y); } /* Draw a line */ void LCDFN(drawline)(int x1, int y1, int x2, int y2) { int numpixels; int i; int deltax, deltay; int d, dinc1, dinc2; int x, xinc1, xinc2; int y, yinc1, yinc2; LCDFN(pixelfunc_type) *pfunc = LCDFN(pixelfuncs)[CURRENT_VP->drawmode]; deltax = abs(x2 - x1); if (deltax == 0) { /* DEBUGF(LCDNAME "drawline() called for vertical line - optimisation.\n"); */ LCDFN(vline)(x1, y1, y2); return; } deltay = abs(y2 - y1); if (deltay == 0) { /* DEBUGF(LCDNAME "drawline() called for horizontal line - optimisation.\n"); */ LCDFN(hline)(x1, x2, y1); return; } xinc2 = 1; yinc2 = 1; if (deltax >= deltay) { numpixels = deltax; d = 2 * deltay - deltax; dinc1 = deltay * 2; dinc2 = (deltay - deltax) * 2; xinc1 = 1; yinc1 = 0; } else { numpixels = deltay; d = 2 * deltax - deltay; dinc1 = deltax * 2; dinc2 = (deltax - deltay) * 2; xinc1 = 0; yinc1 = 1; } numpixels++; /* include endpoints */ if (x1 > x2) { xinc1 = -xinc1; xinc2 = -xinc2; } if (y1 > y2) { yinc1 = -yinc1; yinc2 = -yinc2; } x = x1; y = y1; for (i = 0; i < numpixels; i++) { if ( ((unsigned)x < (unsigned)CURRENT_VP->width) && ((unsigned)y < (unsigned)CURRENT_VP->height) #if defined(HAVE_VIEWPORT_CLIP) && ((unsigned)x < (unsigned)LCDM(WIDTH)) && ((unsigned)y < (unsigned)LCDM(HEIGHT)) #endif ) pfunc(CURRENT_VP->x + x, CURRENT_VP->y + y); if (d < 0) { d += dinc1; x += xinc1; y += yinc1; } else { d += dinc2; x += xinc2; y += yinc2; } } } /* Draw a horizontal line (optimised) */ void LCDFN(hline)(int x1, int x2, int y) { int x, width; unsigned char *dst, *dst_end; unsigned mask; LCDFN(blockfunc_type) *bfunc; /* direction flip */ if (x2 < x1) { x = x1; x1 = x2; x2 = x; } /******************** In viewport clipping **********************/ /* nothing to draw? */ if (((unsigned)y >= (unsigned)CURRENT_VP->height) || (x1 >= CURRENT_VP->width) || (x2 < 0)) return; if (x1 < 0) x1 = 0; if (x2 >= CURRENT_VP->width) x2 = CURRENT_VP->width-1; /* adjust to viewport */ x1 += CURRENT_VP->x; x2 += CURRENT_VP->x; y += CURRENT_VP->y; #if defined(HAVE_VIEWPORT_CLIP) /********************* Viewport on screen clipping ********************/ /* nothing to draw? */ if (((unsigned)y >= (unsigned) LCDM(HEIGHT)) || (x1 >= LCDM(WIDTH)) || (x2 < 0)) return; /* clipping */ if (x1 < 0) x1 = 0; if (x2 >= LCDM(WIDTH)) x2 = LCDM(WIDTH)-1; #endif width = x2 - x1 + 1; bfunc = LCDFN(blockfuncs)[CURRENT_VP->drawmode]; dst = LCDFB(x1,y>>3); mask = BIT_N(y & 7); dst_end = dst + width; do bfunc(dst++, mask, 0xFFu); while (dst < dst_end); } /* Draw a vertical line (optimised) */ void LCDFN(vline)(int x, int y1, int y2) { int ny; FBFN(data) *dst; int stride_dst; unsigned mask, mask_bottom; LCDFN(blockfunc_type) *bfunc; /* direction flip */ if (y2 < y1) { ny = y1; y1 = y2; y2 = ny; } /******************** In viewport clipping **********************/ /* nothing to draw? */ if (((unsigned)x >= (unsigned)CURRENT_VP->width) || (y1 >= CURRENT_VP->height) || (y2 < 0)) return; if (y1 < 0) y1 = 0; if (y2 >= CURRENT_VP->height) y2 = CURRENT_VP->height-1; /* adjust for viewport */ y1 += CURRENT_VP->y; y2 += CURRENT_VP->y; x += CURRENT_VP->x; #if defined(HAVE_VIEWPORT_CLIP) /********************* Viewport on screen clipping ********************/ /* nothing to draw? */ if (( (unsigned) x >= (unsigned)LCDM(WIDTH)) || (y1 >= LCDM(HEIGHT)) || (y2 < 0)) return; /* clipping */ if (y1 < 0) y1 = 0; if (y2 >= LCDM(HEIGHT)) y2 = LCDM(HEIGHT)-1; #endif bfunc = LCDFN(blockfuncs)[CURRENT_VP->drawmode]; dst = LCDFB(x,y1>>3); ny = y2 - (y1 & ~7); mask = 0xFFu << (y1 & 7); mask_bottom = 0xFFu >> (~ny & 7); stride_dst = CURRENT_VP->buffer->stride; for (; ny >= 8; ny -= 8) { bfunc(dst, mask, 0xFFu); dst += stride_dst; mask = 0xFFu; } mask &= mask_bottom; bfunc(dst, mask, 0xFFu); } /* Draw a rectangular box */ void LCDFN(drawrect)(int x, int y, int width, int height) { if ((width <= 0) || (height <= 0)) return; int x2 = x + width - 1; int y2 = y + height - 1; LCDFN(vline)(x, y, y2); LCDFN(vline)(x2, y, y2); LCDFN(hline)(x, x2, y); LCDFN(hline)(x, x2, y2); } /* Fill a rectangular area */ void LCDFN(fillrect)(int x, int y, int width, int height) { int ny; FBFN(data) *dst, *dst_end; int stride_dst; unsigned mask, mask_bottom; unsigned bits = 0; LCDFN(blockfunc_type) *bfunc; bool fillopt = false; /******************** In viewport clipping **********************/ /* nothing to draw? */ if ((width <= 0) || (height <= 0) || (x >= CURRENT_VP->width) || (y >= CURRENT_VP->height) || (x + width <= 0) || (y + height <= 0)) return; if (x < 0) { width += x; x = 0; } if (y < 0) { height += y; y = 0; } if (x + width > CURRENT_VP->width) width = CURRENT_VP->width - x; if (y + height > CURRENT_VP->height) height = CURRENT_VP->height - y; /* adjust for viewport */ x += CURRENT_VP->x; y += CURRENT_VP->y; #if defined(HAVE_VIEWPORT_CLIP) /********************* Viewport on screen clipping ********************/ /* nothing to draw? */ if ((x >= LCDM(WIDTH)) || (y >= LCDM(HEIGHT)) || (x + width <= 0) || (y + height <= 0)) return; /* clip image in viewport in screen */ if (x < 0) { width += x; x = 0; } if (y < 0) { height += y; y = 0; } if (x + width > LCDM(WIDTH)) width = LCDM(WIDTH) - x; if (y + height > LCDM(HEIGHT)) height = LCDM(HEIGHT) - y; #endif if (CURRENT_VP->drawmode & DRMODE_INVERSEVID) { if (CURRENT_VP->drawmode & DRMODE_BG) { fillopt = true; } } else { if (CURRENT_VP->drawmode & DRMODE_FG) { fillopt = true; bits = 0xFFu; } } bfunc = LCDFN(blockfuncs)[CURRENT_VP->drawmode]; dst = LCDFB(x,y>>3); ny = height - 1 + (y & 7); mask = 0xFFu << (y & 7); mask_bottom = 0xFFu >> (~ny & 7); stride_dst = CURRENT_VP->buffer->stride; for (; ny >= 8; ny -= 8) { if (fillopt && (mask == 0xFFu)) memset(dst, bits, width); else { FBFN(data) *dst_row = dst; dst_end = dst_row + width; do bfunc(dst_row++, mask, 0xFFu); while (dst_row < dst_end); } dst += stride_dst; mask = 0xFFu; } mask &= mask_bottom; if (fillopt && (mask == 0xFFu)) memset(dst, bits, width); else { dst_end = dst + width; do bfunc(dst++, mask, 0xFFu); while (dst < dst_end); } } /* About Rockbox' internal bitmap format: * * A bitmap contains one bit for every pixel that defines if that pixel is * black (1) or white (0). Bits within a byte are arranged vertically, LSB * at top. * The bytes are stored in row-major order, with byte 0 being top left, * byte 1 2nd from left etc. The first row of bytes defines pixel rows * 0..7, the second row defines pixel row 8..15 etc. * * This is the same as the internal lcd hw format. */ /* Draw a partial bitmap */ void ICODE_ATTR LCDFN(bitmap_part)(const unsigned char *src, int src_x, int src_y, int stride, int x, int y, int width, int height) { int shift, ny; FBFN(data) *dst, *dst_end; int stride_dst; unsigned mask, mask_bottom; LCDFN(blockfunc_type) *bfunc; /******************** Image in viewport clipping **********************/ /* nothing to draw? */ if ((width <= 0) || (height <= 0) || (x >= CURRENT_VP->width) || (y >= CURRENT_VP->height) || (x + width <= 0) || (y + height <= 0)) return; /* clip image in viewport */ if (x < 0) { width += x; src_x -= x; x = 0; } if (y < 0) { height += y; src_y -= y; y = 0; } if (x + width > CURRENT_VP->width) width = CURRENT_VP->width - x; if (y + height > CURRENT_VP->height) height = CURRENT_VP->height - y; /* adjust for viewport */ x += CURRENT_VP->x; y += CURRENT_VP->y; #if defined(HAVE_VIEWPORT_CLIP) /********************* Viewport on screen clipping ********************/ /* nothing to draw? */ if ((x >= LCDM(WIDTH)) || (y >= LCDM(HEIGHT)) || (x + width <= 0) || (y + height <= 0)) return; /* clip image in viewport in screen */ if (x < 0) { width += x; src_x -= x; x = 0; } if (y < 0) { height += y; src_y -= y; y = 0; } if (x + width > LCDM(WIDTH)) width = LCDM(WIDTH) - x; if (y + height > LCDM(HEIGHT)) height = LCDM(HEIGHT) - y; #endif src += stride * (src_y >> 3) + src_x; /* move starting point */ src_y &= 7; y -= src_y; dst = LCDFB(x,y>>3); stride_dst = CURRENT_VP->buffer->stride; shift = y & 7; ny = height - 1 + shift + src_y; bfunc = LCDFN(blockfuncs)[CURRENT_VP->drawmode]; mask = 0xFFu << (shift + src_y); mask_bottom = 0xFFu >> (~ny & 7); if (shift == 0) { bool copyopt = (CURRENT_VP->drawmode == DRMODE_SOLID); for (; ny >= 8; ny -= 8) { if (copyopt && (mask == 0xFFu)) memcpy(dst, src, width); else { const unsigned char *src_row = src; FBFN(data) *dst_row = dst; dst_end = dst_row + width; do bfunc(dst_row++, mask, *src_row++); while (dst_row < dst_end); } src += stride; dst += stride_dst; mask = 0xFFu; } mask &= mask_bottom; if (copyopt && (mask == 0xFFu)) memcpy(dst, src, width); else { dst_end = dst + width; do bfunc(dst++, mask, *src++); while (dst < dst_end); } } else { dst_end = dst + width; do { const unsigned char *src_col = src++; FBFN(data) *dst_col = dst++; unsigned mask_col = mask; unsigned data = 0; for (y = ny; y >= 8; y -= 8) { data |= *src_col << shift; if (mask_col & 0xFFu) { bfunc(dst_col, mask_col, data); mask_col = 0xFFu; } else mask_col >>= 8; src_col += stride; dst_col += stride_dst; data >>= 8; } data |= *src_col << shift; bfunc(dst_col, mask_col & mask_bottom, data); } while (dst < dst_end); } } /* Draw a full bitmap */ void LCDFN(bitmap)(const unsigned char *src, int x, int y, int width, int height) { LCDFN(bitmap_part)(src, 0, 0, width, x, y, width, height); } #include "lcd-bitmap-common.c"