/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2008 Dan Everton (safetydan) * Copyright (C) 2009 Maurus Cuelenaere * Copyright (C) 2017 William Wilgus * * 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. * ****************************************************************************/ #define lrocklib_c #define LUA_LIB #include "lua.h" #include "lauxlib.h" #include "rocklib.h" #include "lib/helper.h" #include "lib/pluginlib_actions.h" /* * http://www.lua.org/manual/5.1/manual.html#lua_CFunction * * In order to communicate properly with Lua, a C function must use the following protocol, * which defines the way parameters and results are passed: a C function receives its arguments * from Lua in its stack in direct order (the first argument is pushed first). To return values to Lua, * a C function just pushes them onto the stack, in direct order (the first result is pushed first), * and returns the number of results. Any other value in the stack below the results will be properly * discarded by Lua. Like a Lua function, a C function called by Lua can also return many results. * * When porting new functions, don't forget to check rocklib_aux.pl whether it automatically creates * wrappers for the function and if so, add the function names to @forbidden_functions. This is to * prevent namespace collisions and adding duplicate wrappers. */ /* * ----------------------------------------------------------------------------- * * Rockbox Lua image wrapper * * Some devices(1-bit / 2-bit displays) have packed bit formats that * need to be unpacked in order to work on them at a pixel level. * * The internal formats of these devices do not follow the same paradigm * for image sizes either; We still display the actual width and height to * the user but store stride based on the native values * * Conversion between native addressing and per pixel addressing * incurs extra overhead but it is much faster to do it * on the 'C' side rather than in lua. * * ----------------------------------------------------------------------------- */ #ifdef HAVE_LCD_BITMAP #define RLI_EXTENDED #endif #define ROCKLUA_IMAGE "rb.image" #define ERR_IDX_RANGE "index out of range" #define ERR_DATA_OVF "data overflow" /* mark for RLI to LUA Interface functions (luaState *L) is the only argument */ #define RLI_LUA static int #ifndef ABS #define ABS(a)(((a) < 0) ? - (a) :(a)) #endif #ifndef LCD_BLACK #define LCD_BLACK 0x0 #endif struct rocklua_image { int width; int height; int stride; size_t elems; fb_data *data; fb_data dummy[1]; }; /* holds iterator data for rlimages */ struct rli_iter_d { struct rocklua_image *img; fb_data *elem; int x , y; int x1, y1; int x2, y2; int dx, dy; }; /* __tostring information enums */ enum rli_info {RLI_INFO_ALL = 0, RLI_INFO_TYPE, RLI_INFO_WIDTH, RLI_INFO_HEIGHT, RLI_INFO_ELEMS, RLI_INFO_BYTES, RLI_INFO_DEPTH, RLI_INFO_FORMAT, RLI_INFO_ADDRESS}; #ifdef HAVE_LCD_COLOR static inline fb_data invert_color(fb_data rgb) { uint8_t r = 0xFFU - FB_UNPACK_RED(rgb); uint8_t g = 0xFFU - FB_UNPACK_RED(rgb); uint8_t b = 0xFFU - FB_UNPACK_RED(rgb); return FB_RGBPACK(r, g, b); } #else /* !HAVE_LCD_COLOR */ #define invert_color(c) (~c) #endif /* HAVE_LCD_COLOR */ #if (LCD_DEPTH > 2) /* no native to pixel mapping needed */ #define pixel_to_fb(x, y, o, n) {(void) x; (void) y; do { } while (0);} #define pixel_to_native(x, y, xn, yn) {*xn = x; *yn = y;} #define init_pixelmask(x, y, m, p) do { } while (0) #else /* some devices need x | y coords shifted to match native format */ static fb_data x_shift = FB_SCALARPACK(0); static fb_data y_shift = FB_SCALARPACK(0); static fb_data xy_mask = FB_SCALARPACK(0); static const fb_data *pixelmask = NULL; /* conversion between packed native formats and individual pixel addressing */ static inline void init_pixelmask(fb_data *x_shift, fb_data *y_shift, fb_data *xy_mask, const fb_data **pixelmask) { #if(LCD_PIXELFORMAT == VERTICAL_PACKING) && LCD_DEPTH == 1 static const fb_data pixelmask_v1[8] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80}; *pixelmask = pixelmask_v1; (void) x_shift; *y_shift = 3U; *xy_mask = ((1 << (*y_shift)) - 1); #elif(LCD_PIXELFORMAT == VERTICAL_PACKING) && LCD_DEPTH == 2 static const fb_data pixelmask_v2[4] = {0x03, 0x0C, 0x30, 0xC0}; *pixelmask = pixelmask_v2; (void) x_shift; *y_shift = 2U; *xy_mask = ((1 << (*y_shift)) - 1); #elif(LCD_PIXELFORMAT == VERTICAL_INTERLEAVED) && LCD_DEPTH == 2 static const fb_data pixelmask_vi2[8] = {0x0101, 0x0202, 0x0404, 0x0808, 0x1010, 0x2020, 0x4040, 0x8080}; *pixelmask = pixelmask_vi2; (void) x_shift; *y_shift = 3U; *xy_mask = ((1 << (*y_shift)) - 1); #elif(LCD_PIXELFORMAT == HORIZONTAL_PACKING) && LCD_DEPTH == 2 /* MSB on left */ static const fb_data pixelmask_h2[4] = {0x03, 0x0C, 0x30, 0xC0}; *pixelmask = pixelmask_h2; (void) y_shift; *x_shift = 2U; *xy_mask = ((1 << (*x_shift)) - 1); #else #warning Unknown Pixel Format #endif /* LCD_PIXELFORMAT */ } /* init_pixelmask */ static inline void pixel_to_native(int x, int y, int *x_native, int *y_native) { *x_native = ((x - 1) >> x_shift) + 1; *y_native = ((y - 1) >> y_shift) + 1; } /* pixel_to_native */ static inline fb_data set_masked_pixel(fb_data old, fb_data new, fb_data mask, int bit_n) { /*equivalent of: (old & (~mask)) | ((new << bit_n) & mask);*/ return old ^ ((old ^ (new << bit_n)) & mask); } /* set_masked_pixel */ static inline fb_data get_masked_pixel(fb_data val, fb_data mask, int bit_n) { val = val & mask; return val >> bit_n; } /* get_masked_pixel */ /* conversion between packed native formats and individual pixel addressing */ static void pixel_to_fb(int x, int y, fb_data *oldv, fb_data *newv) { fb_data mask; int bit_n; #if(LCD_PIXELFORMAT == VERTICAL_INTERLEAVED) && LCD_DEPTH == 2 (void) x; const uint16_t greymap_vi2[4] = {0x0000, 0x0001, 0x0100, 0x0101}; bit_n = (y - 1) & xy_mask; mask = pixelmask[bit_n]; *newv = greymap_vi2[*newv &(0x3)]; /* [0-3] => greymap */ *newv = set_masked_pixel(*oldv, *newv, mask, bit_n); *oldv = get_masked_pixel(*oldv, mask, bit_n); if((*oldv) > 1) /* greymap => [0-3] */ *oldv = ((*oldv) & 0x1U) + 2U; /* 2, 3 */ else *oldv &= 1U; /* 0, 1 */ #elif(LCD_DEPTH <= 2) if(y_shift) bit_n = (y - 1) & xy_mask; else if(x_shift) bit_n = xy_mask - ((x - 1) & xy_mask); /*MSB on left*/ if(y_shift || x_shift) { mask = pixelmask[bit_n]; bit_n *= LCD_DEPTH; *newv = set_masked_pixel(*oldv, *newv, mask, bit_n); *oldv = get_masked_pixel(*oldv, mask, bit_n); } #else #error Unknown Pixel Format #endif /* LCD_PIXELFORMAT == VERTICAL_INTERLEAVED && LCD_DEPTH == 2 */ } /* pixel_to_fb */ #endif /* (LCD_DEPTH > 2) no native to pixel mapping needed */ /* Internal worker functions for image data array *****************************/ static inline void swap_int(bool swap, int *v1, int *v2) { if(swap) { int val = *v1; *v1 = *v2; *v2 = val; } } /* swap_int */ /* Throws error if x or y are out of bounds notifies user which narg indice the out of bound variable originated */ static void bounds_check_xy(lua_State *L, struct rocklua_image *img, int nargx, int x, int nargy, int y) { luaL_argcheck(L, x <= img->width && x > 0, nargx, ERR_IDX_RANGE); luaL_argcheck(L, y <= img->height && y > 0, nargy, ERR_IDX_RANGE); } /* bounds_check_xy */ static struct rocklua_image* rli_checktype(lua_State *L, int arg) { void *ud = luaL_checkudata(L, arg, ROCKLUA_IMAGE); luaL_argcheck(L, ud != NULL, arg, "'" ROCKLUA_IMAGE "' expected"); return (struct rocklua_image*) ud; } /* rli_checktype */ static struct rocklua_image * alloc_rlimage(lua_State *L, bool alloc_data, int width, int height) { /* rliimage is pushed on the stack it is up to you to pop it */ struct rocklua_image *img; const size_t sz_header = sizeof(struct rocklua_image); size_t sz_data = 0; size_t n_elems; int w_native; int h_native; pixel_to_native(width, height, &w_native, &h_native); n_elems = (size_t)(w_native * h_native); if(alloc_data) /* if this a new image we need space for image data */ sz_data = n_elems * sizeof(fb_data); /* newuserdata pushes the userdata onto the stack */ img = (struct rocklua_image *) lua_newuserdata(L, sz_header + sz_data); luaL_getmetatable(L, ROCKLUA_IMAGE); lua_setmetatable(L, -2); /* apparent w/h is stored but behind the scenes native w/h is used */ img->width = width; img->height = height; img->stride = w_native; img->elems = n_elems; return img; } /* alloc_rlimage */ static inline void rli_wrap(lua_State *L, fb_data *src, int width, int height) { /* rliimage is pushed on the stack it is up to you to pop it */ struct rocklua_image *a = alloc_rlimage(L, false, width, height); a->data = src; } /* rli_wrap */ static inline fb_data* rli_alloc(lua_State *L, int width, int height) { /* rliimage is pushed on the stack it is up to you to pop it */ struct rocklua_image *a = alloc_rlimage(L, true, width, height); a->data = &a->dummy[0]; /* ref to beginning of alloc'd img data */ return a->data; } /* rli_alloc */ static inline fb_data data_setget(fb_data *elem, int x, int y, fb_data *val) { fb_data old_val = FB_SCALARPACK(0); fb_data new_val; if(elem) { old_val = *elem; if(val) { new_val = *val; pixel_to_fb(x, y, &old_val, &new_val); *elem = new_val; } else pixel_to_fb(x, y, &old_val, &new_val); } return old_val; } /* data_setget */ static inline fb_data data_set(fb_data *elem, int x, int y, fb_data *new_val) { /* get and set share the same underlying function */ return data_setget(elem, x, y, new_val); } /* data_set */ static inline fb_data data_get(fb_data *elem, int x, int y) { /* get and set share the same underlying function */ return data_setget(elem, x, y, NULL); } /* data_get */ static fb_data* rli_get_element(struct rocklua_image* img, int x, int y) { int stride = img->stride; size_t elements = img->elems; fb_data *data = img->data; pixel_to_native(x, y, &x, &y); /* row major address */ size_t data_address = (stride * (y - 1)) + (x - 1); /* x needs bound between 0 and stride otherwise overflow to prev/next y */ if(x <= 0 || x > stride || data_address >= elements) return NULL; /* data overflow */ return &data[data_address]; /* return element address */ } /* rli_get_element */ /* Lua to C Interface for pixel set and get functions */ static int rli_setget(lua_State *L, bool is_get) { /*(set) (dst*, [x1, y1, clr, clip]) */ /*(get) (dst*, [x1, y1, clip]) */ struct rocklua_image *a = rli_checktype(L, 1); int x = luaL_checkint(L, 2); int y = luaL_checkint(L, 3); fb_data clr = FB_SCALARPACK(0); /* Arg 4 is color if set element */ fb_data *p_clr = &clr; int clip_narg; if(is_get) /* get element */ { p_clr = NULL; clip_narg = 4; } else /* set element */ { clr = FB_SCALARPACK((unsigned) luaL_checknumber(L, 4)); clip_narg = 5; } fb_data *element = rli_get_element(a, x, y); if(!element) { if(!luaL_optboolean(L, clip_narg, false)) /* Error if !clip */ bounds_check_xy(L, a, 2, x, 3, y); lua_pushnil(L); return 1; } lua_pushnumber(L, FB_UNPACK_SCALAR_LCD(data_setget(element, x, y, p_clr))); /* returns old value */ return 1; } /* rli_setget */ #ifdef RLI_EXTENDED static bool init_rli_iter(struct rli_iter_d *d, struct rocklua_image *img, int x1, int y1, int x2, int y2, int dx, int dy, bool swx, bool swy) { swap_int((swx), &x1, &x2); swap_int((swy), &y1, &y2); /* stepping in the correct x direction ? */ if((dx > 0 && x1 > x2) || (dx < 0 && x1 < x2)) dx = -dx; /* stepping in the correct y direction ? */ if((dy > 0 && y1 > y2) || (dy < 0 && y1 < y2)) dy = -dy; d->img = img; d->x = x1; d->y = y1; d->x1 = x1; d->y1 = y1; d->x2 = x2; d->y2 = y2; d->dx = dx; d->dy = dy; d->elem = rli_get_element(img, d->x, d->y); return(dx != 0 || dy != 0); } /* init_rli_iter */ /* steps to the next point(x, y) by delta x/y, stores pointer to element returns true if x & y haven't reached x2 & y2 if limit reached - element set to NULL, deltas set to 0 & false returned */ static bool next_rli_iter(struct rli_iter_d *d) { if((d->dx > 0 && d->x < d->x2) || (d->dx < 0 && d->x > d->x2)) d->x += d->dx; else if((d->dy > 0 && d->y < d->y2) || (d->dy < 0 && d->y > d->y2)) { d->x = d->x1; /* Reset x*/ d->y += d->dy; } else { d->elem = NULL; d->dx = 0; d->dy = 0; return false; } d->elem = rli_get_element(d->img, d->x, d->y); return true; } /* next_rli_iter */ static int d_line(struct rocklua_image *img, int x1, int y1, int x2, int y2, fb_data *clr, bool clip) { /* NOTE! clr passed as pointer */ /* Bresenham midpoint line algorithm */ fb_data *element; int r_a = x2 - x1; /* range of x direction called 'a' for now */ int r_b = y2 - y1; /* range of y direction called 'b' for now */ int s_a = 1; /* step of a direction */ int s_b = 1; /* step of b direction */ int d_err; int numpixels; int *a1 = &x1; /* pointer to the x var 'a' */ int *b1 = &y1; /* pointer to the y var 'b' */ if(r_a < 0) /* instead of negative range we will switch step instead */ { r_a = -r_a; s_a = -s_a; } if(r_b < 0) /* instead of negative range we will switch step instead */ { r_b = -r_b; s_b = -s_b; } x2 += s_a; /* add 1 extra point to make the whole line */ y2 += s_b; /* add 1 extra point */ if(r_b > r_a) /*if rangeY('b') > rangeX('a') swap their identities */ { a1 = &y1; b1 = &x1; swap_int((true), &r_a, &r_b); swap_int((true), &s_a, &s_b); } d_err = ((r_b << 1) - r_a) >> 1; /* preload err of 1 step (px centered) */ numpixels = r_a + 1; r_a -= r_b; /* pre-subtract 'a' - 'b' */ for(;numpixels > 0; numpixels--) { element = rli_get_element(img, x1, y1); if(element || clip) data_set(element, x1, y1, clr); else return numpixels + 1; /* Error */ if(d_err >= 0) /* 0 is our target midpoint(exact point on the line) */ { *b1 += s_b; /* whichever axis is in 'b' stepped(-1 or +1) */ d_err -= r_a; } else d_err += r_b; /* only add 'b' when d_err < 0 */ *a1 += s_a; /* whichever axis is in 'a' stepped(-1 or +1) */ } return 0; } /* d_line */ /* ellipse worker function */ static int d_ellipse_elements(struct rocklua_image * img, int x1, int y1, int x2, int y2, int sx, int sy, fb_data *clr, fb_data *fillclr, bool clip) { int ret = 0; fb_data *element1, *element2, *element3, *element4; if(fillclr && x1 - sx != x2 + sx) { ret |= d_line(img, x1, y1, x2, y1, fillclr, clip); /* I. II.*/ ret |= d_line(img, x1, y2, x2, y2, fillclr, clip); /* III.IV.*/ } x1 -= sx; /* shift x & y */ y1 -= sy; x2 += sx; y2 += sy; element1 = rli_get_element(img, x2, y1); element2 = rli_get_element(img, x1, y1); element3 = rli_get_element(img, x1, y2); element4 = rli_get_element(img, x2, y2); if(clip || (element1 && element2 && element3 && element4)) { data_set(element1, x2, y1, clr); /* I. Quadrant +x +y */ data_set(element2, x1, y1, clr); /* II. Quadrant -x +y */ data_set(element3, x1, y2, clr); /* III. Quadrant -x -y */ data_set(element4, x2, y2, clr); /* IV. Quadrant +x -y */ } else ret = 2; /* ERROR */ return ret; } /* d_ellipse_elements */ static int d_ellipse(struct rocklua_image *img, int x1, int y1, int x2, int y2, fb_data *clr, fb_data *fillclr, bool clip) { /* NOTE! clr and fillclr passed as pointers */ /* Rasterizing algorithm derivative of work by Alois Zing */ #if LCD_WIDTH > 1024 || LCD_HEIGHT > 1024 /* Prevents overflow on large screens */ double dx, dy, err, e2; #else long dx, dy, err, e2; #endif int ret = 0; int a = ABS(x2 - x1); /* diameter */ int b = ABS(y2 - y1); /* diameter */ if(a == 0 || b == 0 || !clr) return ret; /* not an error but nothing to display */ int b1 = (b & 1); b = b - (1 - b1); int a2 = (a * a); int b2 = (b * b); dx = ((1 - a) * b2) >> 1; /* error increment */ dy = (b1 * a2) >> 1; /* error increment */ err = dx + dy + b1 * a2; /* error of 1.step */ /* if called with swapped points .. exchange them */ swap_int((x1 > x2), &x1, &x2); swap_int((y1 > y2), &y1, &y2); y1 += (b + 1) >> 1; y2 = y1 - b1; do { ret = d_ellipse_elements(img, x1, y1, x2, y2, 0, 0, clr, fillclr, clip); e2 = err; /* using division because you can't use bit shift on doubles.. */ if(e2 <= (dy / 2)) /* target midpoint - y step */ { y1++; y2--; dy += a2; err += dy; } if(e2 >= (dx / 2) || err > (dy / 2)) /* target midpoint - x step */ { x1++; x2--; dx += b2; err += dx; } } while(ret == 0 && x1 <= x2); while (ret == 0 && y1 - y2 < b) /* early stop of flat ellipse a=1 finish tip */ { ret = d_ellipse_elements(img, x1, y1, x2, y2, 1, 0, clr, fillclr, clip); y1++; y2--; } return ret; } /* d_ellipse */ /* Lua to C Interface for line and ellipse */ static int rli_line_ellipse(lua_State *L, bool is_ellipse) { struct rocklua_image *a = rli_checktype(L, 1); int x1 = luaL_checkint(L, 2); int y1 = luaL_checkint(L, 3); int x2 = luaL_optint(L, 4, x1); int y2 = luaL_optint(L, 5, y1); fb_data clr = FB_SCALARPACK((unsigned) luaL_checknumber(L, 6)); fb_data fillclr; /* fill color is index 7 if is_ellipse */ fb_data *p_fillclr = NULL; bool clip; int clip_narg; if(is_ellipse) clip_narg = 8; else clip_narg = 7; clip = luaL_optboolean(L, clip_narg, false); if(!clip) { bounds_check_xy(L, a, 2, x1, 3, y1); bounds_check_xy(L, a, 4, x2, 5, y2); } if(is_ellipse) { if(!lua_isnoneornil(L, 7)) { fillclr = FB_SCALARPACK((unsigned) luaL_checkint(L, 7)); p_fillclr = &fillclr; } luaL_argcheck(L, d_ellipse(a, x1, y1, x2, y2, &clr, p_fillclr, clip) == 0, 1, ERR_DATA_OVF); } else luaL_argcheck(L, d_line(a, x1, y1, x2, y2, &clr, clip) == 0, 1, ERR_DATA_OVF); return 0; } /* rli_line_ellipse */ /* Pushes lua function from Stack at position narg to top of stack and puts a reference in the global registry for later use */ static inline int register_luafunc(lua_State *L, int narg_funct) { lua_pushvalue(L, narg_funct); /* lua function */ int lf_ref = luaL_ref(L, LUA_REGISTRYINDEX); lua_settop(L, 0); /* clear C stack for use by lua function */ return lf_ref; } /* register_luafunc */ /* User defined pixel manipulations through rli_copy, rli_marshal */ static int custom_transform(lua_State *L, struct rli_iter_d *ds, struct rli_iter_d *ss, int op, fb_data *color) { (void) color; fb_data dst; fb_data src; unsigned int params = 3; int ret = 0; lua_rawgeti(L, LUA_REGISTRYINDEX, op); dst = data_get(ds->elem, ds->x, ds->y); lua_pushnumber(L, FB_UNPACK_SCALAR_LCD(dst)); lua_pushnumber(L, ds->x); lua_pushnumber(L, ds->y); if(ss) /* Allows src to be omitted */ { params += 3; src = data_get(ss->elem, ss->x, ss->y); lua_pushnumber(L, FB_UNPACK_SCALAR_LCD(src)); lua_pushnumber(L, ss->x); lua_pushnumber(L, ss->y); } lua_call(L, params, 2); /* call custom function w/ n-params & 2 ret */ if(!lua_isnoneornil(L, -2)) { ret = 1; dst = FB_SCALARPACK((unsigned) luaL_checknumber(L, -2)); data_set(ds->elem, ds->x, ds->y, &dst); } if(!lua_isnoneornil(L, -1) && ss) { ret |= 2; src = FB_SCALARPACK((unsigned) luaL_checknumber(L, -1)); data_set(ss->elem, ss->x, ss->y, &src); } lua_pop(L, 2); return ret; /* 0 signals iterator to stop */ } /* custom_transform */ /* Pre defined pixel manipulations through rli_copy */ static int blit_transform(lua_State *L, struct rli_iter_d *ds, struct rli_iter_d *ss, int op, fb_data *color) { (void) L; unsigned clr = FB_UNPACK_SCALAR_LCD(*color); unsigned dst = FB_UNPACK_SCALAR_LCD(data_get(ds->elem, ds->x, ds->y)); unsigned src; /* Reuse 0 - 7 for src / clr blits*/ if(op >= 30 && op <= 37) { op -= 30; src = clr; } else src = FB_UNPACK_SCALAR_LCD(data_get(ss->elem, ss->x, ss->y)); switch(op) { default: /* case 30: */ case 0: { dst = src; break; }/* copyS/C */ /* case 31: */ case 1: { dst = src | dst; break; }/* DorS/C */ /* case 32: */ case 2: { dst = src ^ dst; break; }/* DxorS/C */ /* case 33: */ case 3: { dst = ~(src | dst); break; }/* nDorS/C */ /* case 34: */ case 4: { dst = (~src) | dst; break; }/* DornS/C */ /* case 35: */ case 5: { dst = src & dst; break; }/* DandS/C */ /* case 36: */ case 6: { dst = src & (~dst); break; }/* nDandS/C */ /* case 37: */ case 7: { dst = ~src; break; }/* notS/C */ /* mask blits */ case 8: { if(src != 0) { dst = clr; } break; }/* Sand */ case 9: { if(src == 0) { dst = clr; } break; }/* Snot */ case 10: { dst = src | clr; break; }/* SorC */ case 11: { dst = src ^ clr; break; }/* SxorC */ case 12: { dst = ~(src | clr); break; }/* nSorC */ case 13: { dst = src | (~clr); break; }/* SornC */ case 14: { dst = src & clr; break; }/* SandC */ case 15: { dst = (~src) & clr; break; }/* nSandC */ case 16: { dst |= (~src) | clr; break; }/* DornSorC */ case 17: { dst ^= (src & (dst ^ clr)); break; }/* DxorSandDxorC */ case 18: { if(src != clr) { dst = src; } break; } case 19: { if(src == clr) { dst = src; } break; } case 20: { if(src > clr) { dst = src; } break; } case 21: { if(src < clr) { dst = src; } break; } case 22: { if(dst != clr) { dst = src; } break; } case 23: { if(dst == clr) { dst = src; } break; } case 24: { if(dst > clr) { dst = src; } break; } case 25: { if(dst < clr) { dst = src; } break; } case 26: { if(dst != src) { dst = clr; } break; } case 27: { if(dst == src) { dst = clr; } break; } case 28: { if(dst > src) { dst = clr; } break; } case 29: { if(dst < src) { dst = clr; } break; } }/*switch op*/ fb_data data = FB_SCALARPACK(dst); data_set(ds->elem, ds->x, ds->y, &data); return 1; } /* blit_transform */ static int invert_transform(lua_State *L, struct rli_iter_d *ds, struct rli_iter_d *ss, int op, fb_data *color) { (void) L; (void) color; (void) op; (void) ss; fb_data val = invert_color(data_get(ds->elem, ds->x, ds->y)); data_set(ds->elem, ds->x, ds->y, &val); return 1; } /* invert_transform */ #endif /* RLI_EXTENDED */ /* RLI to LUA Interface functions *********************************************/ RLI_LUA rli_new(lua_State *L) { /* [width, height] */ int width = luaL_optint(L, 1, LCD_WIDTH); int height = luaL_optint(L, 2, LCD_HEIGHT); luaL_argcheck(L, width > 0, 1, ERR_IDX_RANGE); luaL_argcheck(L, height > 0, 2, ERR_IDX_RANGE); rli_alloc(L, width, height); return 1; } RLI_LUA rli_set(lua_State *L) { /*(set) (dst*, [x1, y1, clr, clip]) */ /* get and set share the same underlying function */ return rli_setget(L, false); } RLI_LUA rli_get(lua_State *L) { /*(get) (dst*, [x1, y1, clip]) */ /* get and set share the same underlying function */ return rli_setget(L, true); } RLI_LUA rli_height(lua_State *L) { struct rocklua_image *a = rli_checktype(L, 1); lua_pushnumber(L, a->height); return 1; } RLI_LUA rli_width(lua_State *L) { struct rocklua_image *a = rli_checktype(L, 1); lua_pushnumber(L, a->width); return 1; } RLI_LUA rli_equal(lua_State *L) { struct rocklua_image *a = rli_checktype(L, 1); struct rocklua_image *b = rli_checktype(L, 2); lua_pushboolean(L, a->data == b->data); return 1; } RLI_LUA rli_size(lua_State *L) { struct rocklua_image *a = rli_checktype(L, 1); lua_pushnumber(L, a->elems); return 1; } RLI_LUA rli_raw(lua_State *L) { /*val = (img*, index, [new_val]) */ struct rocklua_image *a = rli_checktype(L, 1); size_t i = (unsigned) luaL_checkint(L, 2); fb_data val; luaL_argcheck(L, i > 0 && i <= (a->elems), 2, ERR_IDX_RANGE); lua_pushnumber(L, FB_UNPACK_SCALAR_LCD(a->data[i-1])); if(!lua_isnoneornil(L, 3)) { val = FB_SCALARPACK((unsigned) luaL_checknumber(L, 3)); a->data[i-1] = val; } return 1; } RLI_LUA rli_tostring(lua_State *L) { /* (img, [infoitem]) */ struct rocklua_image *a = rli_checktype(L, 1); int item = (unsigned) luaL_optint(L, 2, 0); size_t bytes = a->elems * sizeof(fb_data); switch(item) { default: case RLI_INFO_ALL: { lua_pushfstring(L, ROCKLUA_IMAGE ": %dx%d, %d elements, %d bytes, %d-bit depth, %d pack", a->width, a->height, a->elems, bytes, LCD_DEPTH, LCD_PIXELFORMAT); break; } case RLI_INFO_TYPE: { lua_pushfstring(L, ROCKLUA_IMAGE ); break; } case RLI_INFO_WIDTH: { lua_pushfstring(L, "%d", a->width ); break; } case RLI_INFO_HEIGHT: { lua_pushfstring(L, "%d", a->height ); break; } case RLI_INFO_ELEMS: { lua_pushfstring(L, "%d", a->elems ); break; } case RLI_INFO_BYTES: { lua_pushfstring(L, "%d", bytes ); break; } case RLI_INFO_DEPTH: { lua_pushfstring(L, "%d", LCD_DEPTH ); break; } case RLI_INFO_FORMAT: { lua_pushfstring(L, "%d", LCD_PIXELFORMAT); break; } case RLI_INFO_ADDRESS: { lua_pushfstring(L, "%p", a->data); break; } } return 1; } #ifdef RLI_EXTENDED RLI_LUA rli_ellipse(lua_State *L) { /* (dst*, x1, y1, x2, y2, [clr, fillclr, clip]) */ /* line and ellipse share the same init function */ return rli_line_ellipse(L, true); } RLI_LUA rli_line(lua_State *L) { /* (dst*, x1, y1, [x2, y2, clr, clip]) */ /* line and ellipse share the same init function */ return rli_line_ellipse(L, false); } RLI_LUA rli_iterator(lua_State *L) { /* see rli_iterator_factory */ struct rli_iter_d *ds; ds = (struct rli_iter_d *) lua_touserdata(L, lua_upvalueindex(1)); if(ds->dx != 0 || ds->dy != 0) { lua_pushnumber(L, FB_UNPACK_SCALAR_LCD(data_get(ds->elem, ds->x, ds->y))); lua_pushinteger(L, ds->x); lua_pushinteger(L, ds->y); next_rli_iter(ds); /* load next element */ return 3; } return 0; /* nothing left to do */ } RLI_LUA rli_iterator_factory(lua_State *L) { /* (src*, [x1, y1, x2, y2, dx, dy]) */ struct rocklua_image *a = rli_checktype(L, 1); /*image we wish to iterate*/ struct rli_iter_d *ds; int x1 = luaL_optint(L, 2, 1); int y1 = luaL_optint(L, 3, 1); int x2 = luaL_optint(L, 4, a->width - x1 + 1); int y2 = luaL_optint(L, 5, a->height - y1 + 1); int dx = luaL_optint(L, 6, 1); int dy = luaL_optint(L, 7, 1); /* create new iter + pushed onto stack */ ds = (struct rli_iter_d *) lua_newuserdata(L, sizeof(struct rli_iter_d)); init_rli_iter(ds, a, x1, y1, x2, y2, dx, dy, false, false); /* returns the iter function with embedded iter data(up values) */ lua_pushcclosure(L, &rli_iterator, 1); return 1; } RLI_LUA rli_marshal(lua_State *L) /* also invert */ { /* (img*, [x1, y1, x2, y2, dx, dy, clip, function]) */ struct rocklua_image *a = rli_checktype(L, 1); struct rli_iter_d ds; int x1 = luaL_optint(L, 2, 1); int y1 = luaL_optint(L, 3, 1); int x2 = luaL_optint(L, 4, a->width); int y2 = luaL_optint(L, 5, a->height); int dx = luaL_optint(L, 6, 1); int dy = luaL_optint(L, 7, 1); bool clip = luaL_optboolean(L, 8, false); int lf_ref = LUA_NOREF; /* de-ref'd without consequence */ int (*rli_trans)(lua_State *, struct rli_iter_d *, struct rli_iter_d *, int, fb_data *); rli_trans = invert_transform; /* default transformation */ if(!clip) { bounds_check_xy(L, a, 2, x1, 3, y1); bounds_check_xy(L, a, 4, x2, 5, y2); } init_rli_iter(&ds, a, x1, y1, x2, y2, dx, dy, false, false); if(lua_isfunction(L, 9)) /* custom function */ { rli_trans = custom_transform; lf_ref = register_luafunc(L, 9); } do { luaL_argcheck(L, clip || (ds.elem != NULL), 1, ERR_DATA_OVF); if(!(*rli_trans)(L, &ds, NULL, lf_ref, NULL)) break; /* Custom op can quit early */ } while(next_rli_iter(&ds)); luaL_unref(L, LUA_REGISTRYINDEX, lf_ref); /* de-reference custom function */ return 0; } RLI_LUA rli_copy(lua_State *L) { /* (dst*, src*, [d_x, d_y, s_x, s_y, x_off, y_off, clip, [op, funct/clr]]) */ struct rocklua_image *d = rli_checktype(L, 1); /*dst*/ struct rocklua_image *s = rli_checktype(L, 2); /*src*/ struct rli_iter_d ds; /*dst*/ struct rli_iter_d ss; /*src*/ /* copy whole image if possible */ if(s->elems == d->elems && s->width == d->width && lua_gettop(L) < 3) { memcpy(d->data, s->data, d->elems * sizeof(fb_data)); return 0; } int d_x = luaL_optint(L, 3, 1); int d_y = luaL_optint(L, 4, 1); int s_x = luaL_optint(L, 5, 1); int s_y = luaL_optint(L, 6, 1); int w = MIN(d->width - d_x, s->width - s_x); int h = MIN(d->height - d_y, s->height - s_y); int x_off = luaL_optint(L, 7, w); int y_off = luaL_optint(L, 8, h); bool clip = luaL_optboolean(L, 9, false); int op = luaL_optint(L, 10, 0); fb_data clr = FB_SCALARPACK(0); /* 11 is custom function | color */ bool d_swx = (x_off < 0); /* dest swap */ bool d_swy = (y_off < 0); bool s_swx = false; /* src swap */ bool s_swy = false; int (*rli_trans)(lua_State *, struct rli_iter_d *, struct rli_iter_d *, int, fb_data *); rli_trans = blit_transform; /* default transformation */ int lf_ref = LUA_NOREF; /* de-ref'd without consequence */ if(!clip) /* Out of bounds is not allowed */ { bounds_check_xy(L, d, 3, d_x, 4, d_y); bounds_check_xy(L, s, 5, s_x, 6, s_y); } else if (w < 0 || h < 0) /* not an error but nothing to display */ return 0; w = MIN(w, ABS(x_off)); h = MIN(h, ABS(y_off)); /* if(s->data == d->data) need to care about fill direction */ if(d_x > s_x) { d_swx = !d_swx; s_swx = !s_swx; } if(d_y > s_y) { d_swy = !d_swy; s_swy = !s_swy; } init_rli_iter(&ds, d, d_x, d_y, d_x + w, d_y + h, 1, 1, d_swx, d_swy); init_rli_iter(&ss, s, s_x, s_y, s_x + w, s_y + h, 1, 1, s_swx, s_swy); if (op == 0xFF && lua_isfunction(L, 11)) /* custom function specified.. */ { rli_trans = custom_transform; lf_ref = register_luafunc(L, 11); op = lf_ref; } else clr = FB_SCALARPACK((unsigned) luaL_optnumber(L, 11, LCD_BLACK)); do { if(!clip) { luaL_argcheck(L, ss.elem != NULL, 2, ERR_DATA_OVF); luaL_argcheck(L, ds.elem != NULL, 1, ERR_DATA_OVF); } if(!(*rli_trans)(L, &ds, &ss, op, &clr)) break; /* Custom op can quit early */ } while(next_rli_iter(&ds) && next_rli_iter(&ss)); luaL_unref(L, LUA_REGISTRYINDEX, lf_ref); /* de-reference custom function */ return 0; } RLI_LUA rli_clear(lua_State *L) { /* (dst*, [color, x1, y1, x2, y2, clip]) */ struct rocklua_image *a = rli_checktype(L, 1); struct rli_iter_d ds; fb_data clr = FB_SCALARPACK((unsigned) luaL_optnumber(L, 2, LCD_BLACK)); int x1 = luaL_optint(L, 3, 1); int y1 = luaL_optint(L, 4, 1); int x2 = luaL_optint(L, 5, a->width); int y2 = luaL_optint(L, 6, a->height); bool clip = luaL_optboolean(L, 7, false); if(!clip) { bounds_check_xy(L, a, 3, x1, 4, y1); bounds_check_xy(L, a, 5, x2, 6, y2); } init_rli_iter(&ds, a, x1, y1, x2, y2, 1, 1, false, false); do { luaL_argcheck(L, clip || (ds.elem != NULL), 1, ERR_DATA_OVF); data_set(ds.elem, ds.x, ds.y, &clr); } while(next_rli_iter(&ds)); return 0; } #endif /* RLI_EXTENDED */ /* Rli Image methods exported to lua */ static const struct luaL_reg rli_lib [] = { {"__tostring", rli_tostring}, {"_data", rli_raw}, {"__len", rli_size}, {"__eq", rli_equal}, {"width", rli_width}, {"height", rli_height}, {"set", rli_set}, {"get", rli_get}, #ifdef RLI_EXTENDED {"copy", rli_copy}, {"clear", rli_clear}, {"invert", rli_marshal}, {"marshal", rli_marshal}, {"points", rli_iterator_factory}, {"line", rli_line}, {"ellipse", rli_ellipse}, #endif /* RLI_EXTENDED */ {NULL, NULL} }; static inline void rli_init(lua_State *L) { /* some devices need x | y coords shifted to match native format */ /* conversion between packed native formats and individual pixel addressing */ init_pixelmask(&x_shift, &y_shift, &xy_mask, &pixelmask); luaL_newmetatable(L, ROCKLUA_IMAGE); lua_pushstring(L, "__index"); lua_pushvalue(L, -2); /* pushes the metatable */ lua_settable(L, -3); /* metatable.__index = metatable */ luaL_register(L, NULL, rli_lib); } /* * ----------------------------- * * Rockbox wrappers start here! * * ----------------------------- */ #define RB_WRAP(M) static int rock_##M(lua_State UNUSED_ATTR *L) #define SIMPLE_VOID_WRAPPER(func) RB_WRAP(func) { (void)L; func(); return 0; } /* Helper function for opt_viewport */ static void check_tablevalue(lua_State *L, const char* key, int tablepos, void* res, bool is_unsigned) { lua_getfield(L, tablepos, key); /* Find table[key] */ int val = luaL_optint(L, -1, 0); if(is_unsigned) *(unsigned*)res = (unsigned) val; else *(int*)res = val; lua_pop(L, 1); /* Pop the value off the stack */ } static inline struct viewport* opt_viewport(lua_State *L, int narg, struct viewport* vp, struct viewport* alt) { if(lua_isnoneornil(L, narg)) return alt; luaL_checktype(L, narg, LUA_TTABLE); check_tablevalue(L, "x", narg, &vp->x, false); check_tablevalue(L, "y", narg, &vp->y, false); check_tablevalue(L, "width", narg, &vp->width, false); check_tablevalue(L, "height", narg, &vp->height, false); #ifdef HAVE_LCD_BITMAP check_tablevalue(L, "font", narg, &vp->font, false); check_tablevalue(L, "drawmode", narg, &vp->drawmode, false); #endif #if LCD_DEPTH > 1 check_tablevalue(L, "fg_pattern", narg, &vp->fg_pattern, true); check_tablevalue(L, "bg_pattern", narg, &vp->bg_pattern, true); #endif return vp; } RB_WRAP(set_viewport) { static struct viewport vp; int screen = luaL_optint(L, 2, SCREEN_MAIN); rb->screens[screen]->set_viewport(opt_viewport(L, 1, &vp, NULL)); return 0; } RB_WRAP(clear_viewport) { int screen = luaL_optint(L, 1, SCREEN_MAIN); rb->screens[screen]->clear_viewport(); return 0; } #ifdef HAVE_LCD_BITMAP RB_WRAP(lcd_framebuffer) { rli_wrap(L, rb->lcd_framebuffer, LCD_WIDTH, LCD_HEIGHT); return 1; } RB_WRAP(lcd_mono_bitmap_part) { struct rocklua_image *src = rli_checktype(L, 1); int src_x = luaL_checkint(L, 2); int src_y = luaL_checkint(L, 3); int stride = luaL_checkint(L, 4); int x = luaL_checkint(L, 5); int y = luaL_checkint(L, 6); int width = luaL_checkint(L, 7); int height = luaL_checkint(L, 8); int screen = luaL_optint(L, 9, SCREEN_MAIN); rb->screens[screen]->mono_bitmap_part((const unsigned char *)src->data, src_x, src_y, stride, x, y, width, height); return 0; } RB_WRAP(lcd_mono_bitmap) { struct rocklua_image *src = rli_checktype(L, 1); int x = luaL_checkint(L, 2); int y = luaL_checkint(L, 3); int width = luaL_checkint(L, 4); int height = luaL_checkint(L, 5); int screen = luaL_optint(L, 6, SCREEN_MAIN); rb->screens[screen]->mono_bitmap((const unsigned char *)src->data, x, y, width, height); return 0; } #if LCD_DEPTH > 1 RB_WRAP(lcd_bitmap_part) { struct rocklua_image *src = rli_checktype(L, 1); int src_x = luaL_checkint(L, 2); int src_y = luaL_checkint(L, 3); int stride = luaL_checkint(L, 4); int x = luaL_checkint(L, 5); int y = luaL_checkint(L, 6); int width = luaL_checkint(L, 7); int height = luaL_checkint(L, 8); int screen = luaL_optint(L, 9, SCREEN_MAIN); rb->screens[screen]->bitmap_part(src->data, src_x, src_y, stride, x, y, width, height); return 0; } RB_WRAP(lcd_bitmap) { struct rocklua_image *src = rli_checktype(L, 1); int x = luaL_checkint(L, 2); int y = luaL_checkint(L, 3); int width = luaL_checkint(L, 4); int height = luaL_checkint(L, 5); int screen = luaL_optint(L, 6, SCREEN_MAIN); rb->screens[screen]->bitmap(src->data, x, y, width, height); return 0; } RB_WRAP(lcd_get_backdrop) { fb_data* backdrop = rb->lcd_get_backdrop(); if(backdrop == NULL) lua_pushnil(L); else rli_wrap(L, backdrop, LCD_WIDTH, LCD_HEIGHT); return 1; } #endif /* LCD_DEPTH > 1 */ #if LCD_DEPTH == 16 RB_WRAP(lcd_bitmap_transparent_part) { struct rocklua_image *src = rli_checktype(L, 1); int src_x = luaL_checkint(L, 2); int src_y = luaL_checkint(L, 3); int stride = luaL_checkint(L, 4); int x = luaL_checkint(L, 5); int y = luaL_checkint(L, 6); int width = luaL_checkint(L, 7); int height = luaL_checkint(L, 8); int screen = luaL_optint(L, 9, SCREEN_MAIN); rb->screens[screen]->transparent_bitmap_part(src->data, src_x, src_y, stride, x, y, width, height); return 0; } RB_WRAP(lcd_bitmap_transparent) { struct rocklua_image *src = rli_checktype(L, 1); int x = luaL_checkint(L, 2); int y = luaL_checkint(L, 3); int width = luaL_checkint(L, 4); int height = luaL_checkint(L, 5); int screen = luaL_optint(L, 6, SCREEN_MAIN); rb->screens[screen]->transparent_bitmap(src->data, x, y, width, height); return 0; } #endif /* LCD_DEPTH == 16 */ #endif /* defined(LCD_BITMAP) */ RB_WRAP(current_tick) { lua_pushinteger(L, *rb->current_tick); return 1; } #ifdef HAVE_TOUCHSCREEN RB_WRAP(action_get_touchscreen_press) { short x, y; int result = rb->action_get_touchscreen_press(&x, &y); lua_pushinteger(L, result); lua_pushinteger(L, x); lua_pushinteger(L, y); return 3; } #endif RB_WRAP(kbd_input) { luaL_Buffer b; luaL_buffinit(L, &b); const char *input = luaL_optstring(L, 1, NULL); char *buffer = luaL_prepbuffer(&b); if(input != NULL) rb->strlcpy(buffer, input, LUAL_BUFFERSIZE); else buffer[0] = '\0'; if(!rb->kbd_input(buffer, LUAL_BUFFERSIZE)) { luaL_addsize(&b, strlen(buffer)); luaL_pushresult(&b); } else lua_pushnil(L); return 1; } #ifdef HAVE_TOUCHSCREEN RB_WRAP(touchscreen_set_mode) { enum touchscreen_mode mode = luaL_checkint(L, 1); rb->touchscreen_set_mode(mode); return 0; } RB_WRAP(touchscreen_get_mode) { lua_pushinteger(L, rb->touchscreen_get_mode()); return 1; } #endif RB_WRAP(font_getstringsize) { const unsigned char* str = luaL_checkstring(L, 1); int fontnumber = luaL_checkint(L, 2); int w, h; if (fontnumber == FONT_UI) fontnumber = rb->global_status->font_id[SCREEN_MAIN]; else fontnumber = FONT_SYSFIXED; int result = rb->font_getstringsize(str, &w, &h, fontnumber); lua_pushinteger(L, result); lua_pushinteger(L, w); lua_pushinteger(L, h); return 3; } #ifdef HAVE_LCD_COLOR RB_WRAP(lcd_rgbpack) { int r = luaL_checkint(L, 1); int g = luaL_checkint(L, 2); int b = luaL_checkint(L, 3); int result = LCD_RGBPACK(r, g, b); lua_pushinteger(L, result); return 1; } RB_WRAP(lcd_rgbunpack) { int rgb = luaL_checkint(L, 1); lua_pushinteger(L, RGB_UNPACK_RED(rgb)); lua_pushinteger(L, RGB_UNPACK_GREEN(rgb)); lua_pushinteger(L, RGB_UNPACK_BLUE(rgb)); return 3; } #endif RB_WRAP(read_bmp_file) { struct bitmap bm; const char* filename = luaL_checkstring(L, 1); bool dither = luaL_optboolean(L, 2, true); bool transparent = luaL_optboolean(L, 3, false); int format = FORMAT_NATIVE; if(dither) format |= FORMAT_DITHER; if(transparent) format |= FORMAT_TRANSPARENT; int result = rb->read_bmp_file(filename, &bm, 0, format | FORMAT_RETURN_SIZE, NULL); if(result > 0) { bm.data = (unsigned char*) rli_alloc(L, bm.width, bm.height); if(rb->read_bmp_file(filename, &bm, result, format, NULL) < 0) { /* Error occured, drop newly allocated image from stack */ lua_pop(L, 1); lua_pushnil(L); } } else lua_pushnil(L); return 1; } RB_WRAP(current_path) { const char *current_path = get_current_path(L, 1); if(current_path != NULL) lua_pushstring(L, current_path); else lua_pushnil(L); return 1; } static void fill_text_message(lua_State *L, struct text_message * message, int pos) { int i; luaL_checktype(L, pos, LUA_TTABLE); int n = luaL_getn(L, pos); const char **lines = (const char**) tlsf_malloc(n * sizeof(const char*)); if(lines == NULL) luaL_error(L, "Can't allocate %d bytes!", n * sizeof(const char*)); for(i=1; i<=n; i++) { lua_rawgeti(L, pos, i); lines[i-1] = luaL_checkstring(L, -1); lua_pop(L, 1); } message->message_lines = lines; message->nb_lines = n; } RB_WRAP(gui_syncyesno_run) { struct text_message main_message, yes_message, no_message; struct text_message *yes = NULL, *no = NULL; fill_text_message(L, &main_message, 1); if(!lua_isnoneornil(L, 2)) fill_text_message(L, (yes = &yes_message), 2); if(!lua_isnoneornil(L, 3)) fill_text_message(L, (no = &no_message), 3); enum yesno_res result = rb->gui_syncyesno_run(&main_message, yes, no); tlsf_free(main_message.message_lines); if(yes) tlsf_free(yes_message.message_lines); if(no) tlsf_free(no_message.message_lines); lua_pushinteger(L, result); return 1; } RB_WRAP(do_menu) { struct menu_callback_with_desc menu_desc = {NULL, NULL, Icon_NOICON}; struct menu_item_ex menu = {MT_RETURN_ID | MENU_HAS_DESC, {.strings = NULL}, {.callback_and_desc = &menu_desc}}; int i, n, start_selected; const char **items, *title; title = luaL_checkstring(L, 1); luaL_checktype(L, 2, LUA_TTABLE); start_selected = luaL_optint(L, 3, 0); n = luaL_getn(L, 2); items = (const char**) tlsf_malloc(n * sizeof(const char*)); if(items == NULL) luaL_error(L, "Can't allocate %d bytes!", n * sizeof(const char*)); for(i=1; i<=n; i++) { lua_rawgeti(L, 2, i); /* Push item on the stack */ items[i-1] = luaL_checkstring(L, -1); lua_pop(L, 1); /* Pop it */ } menu.strings = items; menu.flags |= MENU_ITEM_COUNT(n); menu_desc.desc = (unsigned char*) title; int result = rb->do_menu(&menu, &start_selected, NULL, false); tlsf_free(items); lua_pushinteger(L, result); return 1; } RB_WRAP(playlist_sync) { /* just pass NULL to work with the current playlist */ rb->playlist_sync(NULL); return 1; } RB_WRAP(playlist_remove_all_tracks) { /* just pass NULL to work with the current playlist */ int result = rb->playlist_remove_all_tracks(NULL); lua_pushinteger(L, result); return 1; } RB_WRAP(playlist_insert_track) { const char *filename; int position, queue, sync; /* for now don't take a playlist_info pointer, but just pass NULL to use the current playlist. If this changes later, all the other parameters can be shifted back. */ filename = luaL_checkstring(L, 1); /* only required parameter */ position = luaL_optint(L, 2, PLAYLIST_INSERT); queue = lua_toboolean(L, 3); /* default to false */ sync = lua_toboolean(L, 4); /* default to false */ int result = rb->playlist_insert_track(NULL, filename, position, queue, sync); lua_pushinteger(L, result); return 1; } RB_WRAP(playlist_insert_directory) { const char* dirname; int position, queue, recurse; /* just like in playlist_insert_track, only works with current playlist. */ dirname = luaL_checkstring(L, 1); /* only required parameter */ position = luaL_optint(L, 2, PLAYLIST_INSERT); queue = lua_toboolean(L, 3); /* default to false */ recurse = lua_toboolean(L, 4); /* default to false */ int result = rb->playlist_insert_directory(NULL, dirname, position, queue, recurse); lua_pushinteger(L, result); return 1; } SIMPLE_VOID_WRAPPER(backlight_force_on); SIMPLE_VOID_WRAPPER(backlight_use_settings); #ifdef HAVE_REMOTE_LCD SIMPLE_VOID_WRAPPER(remote_backlight_force_on); SIMPLE_VOID_WRAPPER(remote_backlight_use_settings); #endif #ifdef HAVE_BUTTON_LIGHT SIMPLE_VOID_WRAPPER(buttonlight_force_on); SIMPLE_VOID_WRAPPER(buttonlight_use_settings); #endif #ifdef HAVE_BACKLIGHT_BRIGHTNESS RB_WRAP(backlight_brightness_set) { int brightness = luaL_checkint(L, 1); backlight_brightness_set(brightness); return 0; } SIMPLE_VOID_WRAPPER(backlight_brightness_use_setting); #endif RB_WRAP(get_plugin_action) { static const struct button_mapping *m1[] = { pla_main_ctx }; int timeout = luaL_checkint(L, 1); int btn; #ifdef HAVE_REMOTE_LCD static const struct button_mapping *m2[] = { pla_main_ctx, pla_remote_ctx }; bool with_remote = luaL_optint(L, 2, 0); if (with_remote) btn = pluginlib_getaction(timeout, m2, 2); else #endif btn = pluginlib_getaction(timeout, m1, 1); lua_pushinteger(L, btn); return 1; } #define R(NAME) {#NAME, rock_##NAME} static const luaL_Reg rocklib[] = { /* Graphics */ #ifdef HAVE_LCD_BITMAP R(lcd_framebuffer), R(lcd_mono_bitmap_part), R(lcd_mono_bitmap), #if LCD_DEPTH > 1 R(lcd_get_backdrop), R(lcd_bitmap_part), R(lcd_bitmap), #endif #if LCD_DEPTH == 16 R(lcd_bitmap_transparent_part), R(lcd_bitmap_transparent), #endif #endif #ifdef HAVE_LCD_COLOR R(lcd_rgbpack), R(lcd_rgbunpack), #endif /* Kernel */ R(current_tick), /* Buttons */ #ifdef HAVE_TOUCHSCREEN R(action_get_touchscreen_press), R(touchscreen_set_mode), R(touchscreen_get_mode), #endif R(kbd_input), R(font_getstringsize), R(read_bmp_file), R(set_viewport), R(clear_viewport), R(current_path), R(gui_syncyesno_run), R(playlist_sync), R(playlist_remove_all_tracks), R(playlist_insert_track), R(playlist_insert_directory), R(do_menu), /* Backlight helper */ R(backlight_force_on), R(backlight_use_settings), #ifdef HAVE_REMOTE_LCD R(remote_backlight_force_on), R(remote_backlight_use_settings), #endif #ifdef HAVE_BUTTON_LIGHT R(buttonlight_force_on), R(buttonlight_use_settings), #endif #ifdef HAVE_BACKLIGHT_BRIGHTNESS R(backlight_brightness_set), R(backlight_brightness_use_setting), #endif R(get_plugin_action), {"new_image", rli_new}, {NULL, NULL} }; #undef R extern const luaL_Reg rocklib_aux[]; #define RB_CONSTANT(x) lua_pushinteger(L, x); lua_setfield(L, -2, #x); #define RB_STRING_CONSTANT(x) lua_pushstring(L, x); lua_setfield(L, -2, #x); /* ** Open Rockbox library */ LUALIB_API int luaopen_rock(lua_State *L) { luaL_register(L, LUA_ROCKLIBNAME, rocklib); luaL_register(L, LUA_ROCKLIBNAME, rocklib_aux); RB_CONSTANT(HZ); RB_CONSTANT(LCD_WIDTH); RB_CONSTANT(LCD_HEIGHT); RB_CONSTANT(LCD_DEPTH); RB_CONSTANT(FONT_SYSFIXED); RB_CONSTANT(FONT_UI); RB_CONSTANT(PLAYLIST_PREPEND); RB_CONSTANT(PLAYLIST_INSERT); RB_CONSTANT(PLAYLIST_INSERT_LAST); RB_CONSTANT(PLAYLIST_INSERT_FIRST); RB_CONSTANT(PLAYLIST_INSERT_SHUFFLED); RB_CONSTANT(PLAYLIST_REPLACE); RB_CONSTANT(PLAYLIST_INSERT_LAST_SHUFFLED); #ifdef HAVE_TOUCHSCREEN RB_CONSTANT(TOUCHSCREEN_POINT); RB_CONSTANT(TOUCHSCREEN_BUTTON); #endif RB_CONSTANT(SCREEN_MAIN); #ifdef HAVE_REMOTE_LCD RB_CONSTANT(SCREEN_REMOTE); #endif /* some useful paths constants */ RB_STRING_CONSTANT(ROCKBOX_DIR); RB_STRING_CONSTANT(HOME_DIR); RB_STRING_CONSTANT(PLUGIN_DIR); RB_STRING_CONSTANT(PLUGIN_APPS_DATA_DIR); RB_STRING_CONSTANT(PLUGIN_GAMES_DATA_DIR); RB_STRING_CONSTANT(PLUGIN_DATA_DIR); RB_STRING_CONSTANT(VIEWERS_DATA_DIR); rli_init(L); return 1; }