diff options
| -rw-r--r-- | apps/plugins/lua/include_lua/blit.lua | 84 | ||||
| -rw-r--r-- | apps/plugins/lua/include_lua/color.lua | 112 | ||||
| -rw-r--r-- | apps/plugins/lua/include_lua/draw.lua | 468 | ||||
| -rw-r--r-- | apps/plugins/lua/include_lua/image.lua | 391 | ||||
| -rw-r--r-- | apps/plugins/lua/include_lua/lcd.lua | 153 | ||||
| -rw-r--r-- | apps/plugins/lua/include_lua/math_ex.lua | 158 | ||||
| -rw-r--r-- | apps/plugins/lua/include_lua/print.lua | 377 | ||||
| -rw-r--r-- | apps/plugins/lua/include_lua/timer.lua | 114 | ||||
| -rw-r--r-- | apps/plugins/lua/lua.make | 8 | ||||
| -rw-r--r-- | apps/plugins/lua/rocklib.c | 1253 |
10 files changed, 3029 insertions, 89 deletions
diff --git a/apps/plugins/lua/include_lua/blit.lua b/apps/plugins/lua/include_lua/blit.lua new file mode 100644 index 0000000000..934804b5b3 --- /dev/null +++ b/apps/plugins/lua/include_lua/blit.lua @@ -0,0 +1,84 @@ +--[[ Lua Blit Operations +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * 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. + * + ****************************************************************************/ +]] + +--[[ +copy(dst, src, [dx, dy, sx, sy, offset_x, offset_y, clip, _blit.OP, clr/customfunct]) + blit allows you to copy a [portion of a] source image to a dest image applying + a transformation operation to the pixels as they are copied + offsets are auto calculated if left empty or out of range + blit will default to copy if operation is empty or out of range + +it is slightly faster to use the number directly and you don't really + need to define all (any) of these if you don't use them but I put them + here for easier use of the blit function +]] +if not rb.lcd_framebuffer then rb.splash(rb.HZ, "No Support!") return nil end + +local _blit ={} do + + _blit.CUSTOM = 0xFF --user defined blit function func(dst_val, x, y, src_val, x, y) + _blit.BCOPY = 0x0 --copy (use :copy() instead it is slightly faster + _blit.BOR = 0x1 --OR source and dest pixels + _blit.BXOR = 0x2 --XOR source and dest pixels + _blit.BNOR = 0x3 --(NOT) (source OR dest pixels) + _blit.BSNOR = 0x4 --(NOT source) OR dest pixels + _blit.BAND = 0x5 --AND source and dest pixels + _blit.BNAND = 0x6 --(NOT) AND source and dest pixels + _blit.BNOT = 0x7 --NOT source and dest pixels + --blit functions for masks + _blit.BSAND = 0x8 --copy color to dest if source pixel <> 0 + _blit.BSNOT = 0x9 --copy color to dest if source pixel == 0 + --blit functions for masks with colors + _blit.BSORC = 0xA --copy source pixel or color + _blit.BSXORC = 0xB --copy source pixel xor color + _blit.BNSORC = 0xC --copy ~(src_val | clr) + _blit.BSORNC = 0xD --copy src_val | (~clr) + _blit.BSANDC = 0xE --copy src_val & clr; + _blit.BNSANDC = 0xF --copy (~src_val) & clr + _blit.BDORNSORC = 0x10 --copy dst | (~src_val) | clr + _blit.BXORSADXORC = 0x11 --copy dst ^ (src_val & (dst_val ^ clr)) + + _blit.BSNEC = 0x12 --copy source pixel if source <> color + _blit.BSEQC = 0x13 --copy source pixel if source == color + _blit.BSGTC = 0x14 --copy source pixel if source > color + _blit.BSLTC = 0x15 --copy source pixel if source < color + _blit.BDNEC = 0x16 --copy source pixel if dest <> color + _blit.BDEQC = 0x17 --copy source pixel if dest == color + _blit.BDGTC = 0x18 --copy source pixel if dest > color + _blit.BDLTC = 0x19 --copy source pixel if dest < color + _blit.BDNES = 0x1A --copy color to dest if dest <> source pixel + _blit.BDEQS = 0x1B --copy color to dest if dest == source pixel + _blit.BDGTS = 0x1C --copy color to dest if dest > source pixel + _blit.BDLTS = 0x1D --copy color to dest if dest < source pixel + --Source unused for these blits + _blit.BCOPYC = 0x1E --copy color + _blit.BORC = 0x1F --OR dest and color + _blit.BXORC = 0x20 --XOR dest and color + _blit.BNDORC = 0x21 --~(dst_val | clr) + _blit.BDORNC = 0x22 --dst_val | (~clr) + _blit.BANDC = 0x23 --AND dest and color + _blit.BNDANDC = 0x24 --copy (~dst_val) & clr + _blit.BDLTS = 0x25 --dest NOT color +end -- _blit operations + +return _blit diff --git a/apps/plugins/lua/include_lua/color.lua b/apps/plugins/lua/include_lua/color.lua new file mode 100644 index 0000000000..267728e072 --- /dev/null +++ b/apps/plugins/lua/include_lua/color.lua @@ -0,0 +1,112 @@ +--[[ Lua Color functions +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * 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. + * + ****************************************************************************/ +]] + +--[[ Exposed Functions + + _clr.inc + _clr.set + +-- Exposed Constants + IS_COLOR_TARGET + +]] +if not rb.lcd_framebuffer then rb.splash(rb.HZ, "No Support!") return nil end + +IS_COLOR_TARGET = false +-- Only true when we're on a color target, i.e. when LCD_RGBPACK is available +if rb.lcd_rgbpack ~= _NIL then + IS_COLOR_TARGET = true +end + +local _clr = {} do + + -- Internal Constants + local _NIL = nil -- _NIL placeholder + + local maxstate = (bit.lshift(1, rb.LCD_DEPTH) - 1) + + local function init(v) + return v or 0 + end + + -- clamps value to >= min and <= max rolls over to opposite + local function clamp_roll(val, min, max) + if min > max then + local swap = min + min, max = max, swap + end + + if val < min then + val = max + elseif val > max then + val = min + end + + return val + end + + -- sets color -- monochrome / greyscale use 'set' -- color targets 'r,b,g' + -- on monochrome/ greyscale targets: + -- '-1' sets the highest 'color' state & 0 is the minimum 'color' state + local function clrset(set, r, g, b) + local color = set or 0 + + if IS_COLOR_TARGET then + if (r ~= _NIL or g ~= _NIL or b ~= _NIL) then + r, g, b = init(r), init(g), init(b) + color = rb.lcd_rgbpack(r, g, b) + end + end + + return clamp_roll(color, 0, maxstate) + end -- clrset + + -- de/increments current color by 'inc' -- optionally color targets by 'r,g,b' + local function clrinc(current, inc, r, g, b) + local color = 0 + current = current or color + inc = inc or 1 + + if IS_COLOR_TARGET then + local ru, gu, bu = rb.lcd_rgbunpack(current); + if (r ~= _NIL or g ~= _NIL or b ~= _NIL) then + r, g, b = init(r), init(g), init(b) + ru = ru + r; gu = gu + g; bu = bu + b + color = rb.lcd_rgbpack(ru, gu, bu) + else + ru = ru + inc; gu = gu + inc; bu = bu + inc + color = rb.lcd_rgbpack(ru, gu, bu) + end + else + color = current + inc + end + + return clamp_roll(color, 0, maxstate) + end -- clrinc + + -- expose functions to the outside through _clr table + _clr.set = clrset + _clr.inc = clrinc +end -- color functions + +return _clr diff --git a/apps/plugins/lua/include_lua/draw.lua b/apps/plugins/lua/include_lua/draw.lua new file mode 100644 index 0000000000..f59e439137 --- /dev/null +++ b/apps/plugins/lua/include_lua/draw.lua @@ -0,0 +1,468 @@ +--[[ Lua Drawing functions +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * 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. + * + ****************************************************************************/ +]] + +--[[ Exposed Functions + + _draw.circle + _draw.circle_filled + _draw.ellipse + _draw.ellipse_filled + _draw.ellipse_rect_filled + _draw.ellipse_rect + _draw.flood_fill + _draw.hline + _draw.image + _draw.line + _draw.polygon + _draw.polyline + _draw.rect + _draw.rect_filled + _draw.rounded_rect + _draw.rounded_rect_filled + _draw.text + _draw.vline + +]] + +--[[ bClip allows drawing out of bounds without raising an error it is slower + than having a correctly bounded figure, but can be helpful in some cases.. +]] + +if not rb.lcd_framebuffer then rb.splash(rb.HZ, "No Support!") return nil end + +local _draw = {} do + + -- Internal Constants + local _LCD = rb.lcd_framebuffer() + local LCD_W, LCD_H = rb.LCD_WIDTH, rb.LCD_HEIGHT + local BSAND = 8 -- blits color to dst if src <> 0 + local _NIL = nil -- nil placeholder + + local function set_viewport(vp) + if not vp then rb.set_viewport() return end + if rb.LCD_DEPTH == 2 then -- invert 2-bit screens + --vp.drawmode = bit.bxor(vp.drawmode, 4) + vp.fg_pattern = 3 - vp.fg_pattern + vp.bg_pattern = 3 - vp.bg_pattern + end + rb.set_viewport(vp) + end + + -- line + local function line(img, x1, y1, x2, y2, color, bClip) + img:line(x1, y1, x2, y2, color, bClip) + end + + -- horizontal line; x, y define start point; length in horizontal direction + local function hline(img, x, y , length, color, bClip) + img:line(x, y, x + length, _NIL, color, bClip) + end + + -- vertical line; x, y define start point; length in vertical direction + local function vline(img, x, y , length, color, bClip) + img:line(x, y, _NIL, y + length, color, bClip) + end + + -- draws a non-filled figure based on points in t-points + local function polyline(img, x, y, t_points, color, bClosed, bClip) + if #t_points < 2 then error("not enough points", 3) end + + local pt_first_last + + if bClosed then + pt_first_last = t_points[1] + else + pt_first_last = t_points[#t_points] + end + + for i = 1, #t_points, 1 do + local pt1 = t_points[i] + + local pt2 = t_points[i + 1] or pt_first_last-- first and last point + + img:line(pt1[1] + x, pt1[2] + y, pt2[1]+x, pt2[2]+y, color, bClip) + end + + end + + -- rectangle + local function rect(img, x, y, width, height, color, bClip) + if width == 0 or height == 0 then return end + + local ppt = {{0, 0}, {width, 0}, {width, height}, {0, height}} + polyline(img, x, y, ppt, color, true, bClip) + --[[ + vline(img, x, y, height, color, bClip); + vline(img, x + width, y, height, color, bClip); + hline(img, x, y, width, color, bClip); + hline(img, x, y + height, width, color, bClip);]] + end + + -- filled rect, fillcolor is color if left empty + local function rect_filled(img, x, y, width, height, color, fillcolor, bClip) + if width == 0 or height == 0 then return end + + if not fillcolor then + img:clear(color, x, y, x + width, y + height, bClip) + else + img:clear(fillcolor, x, y, x + width, y + height, bClip) + rect(img, x, y, width, height, color, bClip) + end + end + + -- circle cx,cy define center point + local function circle(img, cx, cy, radius, color, bClip) + local r = radius + img:ellipse(cx - r, cy - r, cx + r, cy + r, color, _NIL, bClip) + end + + -- filled circle cx,cy define center, fillcolor is color if left empty + local function circle_filled(img, cx, cy, radius, color, fillcolor, bClip) + fillcolor = fillcolor or color + local r = radius + img:ellipse(cx - r, cy - r, cx + r, cy + r, color, fillcolor, bClip) + end + + -- ellipse that fits into defined rect + local function ellipse_rect(img, x1, y1, x2, y2, color, bClip) + img:ellipse(x1, y1, x2, y2, color, _NIL, bClip) + end + + --ellipse that fits into defined rect, fillcolor is color if left empty + local function ellipse_rect_filled(img, x1, y1, x2, y2, color, fillcolor, bClip) + if not fillcolor then fillcolor = color end + + img:ellipse(x1, y1, x2, y2, color, fillcolor, bClip) + end + + -- ellipse cx, cy define center point; a, b the major/minor axis + local function ellipse(img, cx, cy, a, b, color, bClip) + img:ellipse(cx - a, cy - b, cx + a, cy + b, color, _NIL, bClip) + end + + -- filled ellipse cx, cy define center point; a, b the major/minor axis + -- fillcolor is color if left empty + local function ellipse_filled(img, cx, cy, a, b, color, fillcolor, bClip) + if not fillcolor then fillcolor = color end + + img:ellipse(cx - a, cy - b, cx + a, cy + b, color, fillcolor, bClip) + end + + -- rounded rectangle + local function rounded_rect(img, x, y, w, h, radius, color, bClip) + local c_img + + local function blit(dx, dy, sx, sy, ox, oy) + img:copy(c_img, dx, dy, sx, sy, ox, oy, bClip, BSAND, color) + end + + if w == 0 or h == 0 then return end + + -- limit the radius of the circle otherwise it will overtake the rect + radius = math.min(w / 2, radius) + radius = math.min(h / 2, radius) + + local r = radius + + c_img = rb.new_image(r * 2 + 1, r * 2 + 1) + c_img:clear(0) + circle(c_img, r + 1, r + 1, r, 0xFFFFFF) + + -- copy 4 pieces of circle to their respective corners + blit(x, y, _NIL, _NIL, r + 1, r + 1) --TL + blit(x + w - r - 2, y, r, _NIL, r + 1, r + 1) --TR + blit(x , y + h - r - 2, _NIL, r, r + 1, _NIL) --BL + blit(x + w - r - 2, y + h - r - 2, r, r, r + 1, r + 1)--BR + c_img = _NIL + + vline(img, x, y + r, h - r * 2, color, bClip); + vline(img, x + w - 1, y + r, h - r * 2, color, bClip); + hline(img, x + r, y, w - r * 2, color, bClip); + hline(img, x + r, y + h - 1, w - r * 2, color, bClip); + end + + -- rounded rectangle fillcolor is color if left empty + local function rounded_rect_filled(img, x, y, w, h, radius, color, fillcolor, bClip) + local c_img + + local function blit(dx, dy, sx, sy, ox, oy) + img:copy(c_img, dx, dy, sx, sy, ox, oy, bClip, BSAND, fillcolor) + end + + if w == 0 or h == 0 then return end + + if not fillcolor then fillcolor = color end + + -- limit the radius of the circle otherwise it will overtake the rect + radius = math.min(w / 2, radius) + radius = math.min(h / 2, radius) + + local r = radius + + c_img = rb.new_image(r * 2 + 1, r * 2 + 1) + c_img:clear(0) + circle_filled(c_img, r + 1, r + 1, r, fillcolor) + + -- copy 4 pieces of circle to their respective corners + blit(x, y, _NIL, _NIL, r + 1, r + 1) --TL + blit(x + w - r - 2, y, r, _NIL, r + 1, r + 1) --TR + blit(x, y + h - r - 2, _NIL, r, r + 1, _NIL) --BL + blit(x + w - r - 2, y + h - r - 2, r, r, r + 1, r + 1) --BR + c_img = _NIL + + -- finish filling areas circles didn't cover + img:clear(fillcolor, x + r, y, x + w - r, y + h - 1, bClip) + img:clear(fillcolor, x, y + r, x + r, y + h - r, bClip) + img:clear(fillcolor, x + w - r, y + r, x + w - 1, y + h - r - 1, bClip) + + if fillcolor ~= color then + rounded_rect(img, x, y, w, h, r, color, bClip) + end + end + + -- draws an image at xy coord in dest image + local function image(dst, src, x, y, bClip) + if not src then --make sure an image was passed, otherwise bail + rb.splash(rb.HZ, "No Image!") + return _NIL + end + + dst:copy(src, x, y, 1, 1, _NIL, _NIL, bClip) + end + + -- floods an area of targetclr with fillclr x, y specifies the start seed + function flood_fill(img, x, y, targetclr, fillclr) + -- scanline 4-way flood algorithm + -- ^ + -- <--------x---> + -- v + -- check that target color doesn't = fill and the first point is target color + if targetclr == fillclr or targetclr ~= img:get(x,y, true) then return end + local max_w = img:width() + local max_h = img:height() + + local qpt = {} -- FIFO queue + -- rather than moving elements around in our FIFO queue + -- for each read; increment 'qhead' by 2 + -- set both elements to nil and let the + -- garbage collector worry about it + -- for each write; increment 'qtail' by 2 + -- x coordinates are in odd indices while + -- y coordinates are in even indices + + local qtail = 0 + local iter_n; -- North iteration + local iter_s; -- South iteration + + local function check_ns(val, x, y) + if targetclr == val then + if targetclr == iter_n() then + qtail = qtail + 2 + qpt[qtail - 1] = x + qpt[qtail] = (y - 1) + end + + if targetclr == iter_s() then + qtail = qtail + 2 + qpt[qtail - 1] = x + qpt[qtail] = (y + 1) + end + return fillclr + end + return _NIL -- signal marshal to stop + end + + local function seed_pt(x, y) + -- will never hit max_w * max_h^2 but make sure not to end early + for qhead = 2, max_w * max_h * max_w * max_h, 2 do + + if targetclr == img:get(x, y, true) then + iter_n = img:points(x, y - 1, 1, y - 1) + iter_s = img:points(x, y + 1, 1, y + 1) + img:marshal(x, y, 1, y, _NIL, _NIL, true, check_ns) + + iter_n = img:points(x + 1, y - 1, max_w, y - 1) + iter_s = img:points(x + 1, y + 1, max_w, y + 1) + img:marshal(x + 1, y, max_w, y, _NIL, _NIL, true, check_ns) + end + + x = qpt[qhead - 1] + qpt[qhead - 1] = _NIL + + if not x then break end + + y = qpt[qhead] + qpt[qhead] = _NIL + end + end + + seed_pt(x, y) -- Begin + end -- flood_fill + + -- draws a closed figure based on points in t_points + local function polygon(img, x, y, t_points, color, fillcolor, bClip) + if #t_points < 2 then error("not enough points", 3) end + + if fillcolor then + local x_min, x_max = 0, 0 + local y_min, y_max = 0, 0 + local w, h = 0, 0 + -- find boundries of polygon + for i = 1, #t_points, 1 do + local pt = t_points[i] + if pt[1] < x_min then x_min = pt[1] end + if pt[1] > x_max then x_max = pt[1] end + if pt[2] < y_min then y_min = pt[2] end + if pt[2] > y_max then y_max = pt[2] end + end + w = math.abs(x_max) + math.abs(x_min) + h = math.abs(y_max) + math.abs(y_min) + x_min = x_min - 2 -- leave a border to use flood_fill + y_min = y_min - 2 + + local fill_img = rb.new_image(w + 3, h + 3) + fill_img:clear(0xFFFFFF) + + for i = 1, #t_points, 1 do + local pt1 = t_points[i] + local pt2 = t_points[i + 1] or t_points[1]-- first and last point + fill_img:line(pt1[1] - x_min, pt1[2] - y_min, + pt2[1]- x_min, pt2[2] - y_min, 0) + + end + flood_fill(fill_img, fill_img:width(), fill_img:height() , 1, 0) + img:copy(fill_img, x - 1, y - 1, _NIL, _NIL, _NIL, _NIL, bClip, BSAND, fillcolor) + end + + polyline(img, x, y, t_points, color, true, bClip) + end + + -- draw text onto image if width/height are supplied text is centered + local function text(img, x, y, width, height, font, color, text) + font = font or rb.FONT_UI + + local opts = {x = 0, y = 0, width = LCD_W - 1, height = LCD_H - 1, + font = font, drawmode = 3, fg_pattern = 0xFFFFFF, bg_pattern = 0} + set_viewport(opts) + + local res, w, h = rb.font_getstringsize(text, font) + + if not width then + width = 0 + else + width = (width - w) / 2 + end + + if not height then + height = 0 + else + height = (height - h) / 2 + end + + -- make a copy of the current screen for later + local screen_img = rb.new_image(LCD_W, LCD_H) + screen_img:copy(_LCD) + + -- check if the screen buffer is supplied image if so set img to the copy + if img == _LCD then + img = screen_img + end + + -- we will be printing the text to the screen then blitting into img + rb.lcd_clear_display() + + local function blit(dx, dy) + img:copy(_LCD, dx, dy, _NIL, _NIL, _NIL, _NIL, false, BSAND, color) + end + + if w > LCD_W then -- text is too long for the screen do it in chunks + local l = 1 + local resp, wp, hp + local lenr = text:len() + + while lenr > 1 do + l = lenr + resp, wp, hp = rb.font_getstringsize(text:sub(1, l), font) + + while wp >= LCD_W and l > 1 do + l = l - 1 + resp, wp, hp = rb.font_getstringsize(text:sub( 1, l), font) + end + + rb.lcd_putsxy(0, 0, text:sub(1, l)) + text = text:sub(l) + + if x + width > img:width() or y + height > img:height() then + break + end + + -- using the mask we made blit color into img + blit(x + width, y + height) + x = x + wp + rb.lcd_clear_display() + lenr = text:len() + end + else --w <= LCD_W + rb.lcd_putsxy(0, 0, text) + + -- using the mask we made blit color into img + blit(x + width, y + height) + end + + _LCD:copy(screen_img) -- restore screen + set_viewport() -- set viewport default + return res, w, h + end + + -- expose functions to the outside through _draw table + _draw.image = image + _draw.text = text + _draw.line = line + _draw.hline = hline + _draw.vline = vline + _draw.polygon = polygon + _draw.polyline = polyline + _draw.rect = rect + _draw.circle = circle + _draw.ellipse = ellipse + _draw.flood_fill = flood_fill + _draw.ellipse_rect = ellipse_rect + _draw.rounded_rect = rounded_rect + -- filled functions use color as fillcolor if fillcolor is left empty... + _draw.rect_filled = rect_filled + _draw.circle_filled = circle_filled + _draw.ellipse_filled = ellipse_filled + _draw.ellipse_rect_filled = ellipse_rect_filled + _draw.rounded_rect_filled = rounded_rect_filled + + -- adds the above _draw functions into the metatable for RLI_IMAGE + local ex = getmetatable(rb.lcd_framebuffer()) + for k, v in pairs(_draw) do + if ex[k] == _NIL then + ex[k] = v + end + end + +end -- _draw functions + +return _draw diff --git a/apps/plugins/lua/include_lua/image.lua b/apps/plugins/lua/include_lua/image.lua new file mode 100644 index 0000000000..0cf3f370e5 --- /dev/null +++ b/apps/plugins/lua/include_lua/image.lua @@ -0,0 +1,391 @@ +--[[ Lua Image functions +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * 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. + * + ****************************************************************************/ +]] + +--[[ Exposed Functions + + _img.save + _img.search + _img.rotate + _img.resize + _img.tile + _img.new + _img.load + +-- Exposed Constants + _img.RLI_INFO_ALL + _img.RLI_INFO_TYPE + _img.RLI_INFO_WIDTH + _img.RLI_INFO_HEIGHT + _img.RLI_INFO_ELEMS + _img.RLI_INFO_BYTES + _img.RLI_INFO_DEPTH + _img.RLI_INFO_FORMAT + _img.RLI_INFO_ADDRESS + +]] + +--[[Other rbimage Functions: +-------------------------------------------------------------------------------- +img:_len() or #img -- returns number of pixels in image + +img:__tostring([item]) or tostring(img) -- returns data about the image item = 0 + is the same as tostring(img) otherwise + item = 1 is the first item in list + item = 7 is the 7th item + item = 8 is the data address in hex + -- See Constants _img.RLI_INFO_.... + +img:_data(element) -- returns/sets raw pixel data + NOTE!! this data is defined by the target and targets with + different color depth, bit packing, etc will not be + compatible with the same image's data on another target +]] +-------------------------------------------------------------------------------- +if not rb.lcd_framebuffer then rb.splash(rb.HZ, "No Support!") return nil end + +local _img = {} do + + -- internal constants + local _NIL = nil -- _NIL placeholder + local _math = require("math_ex") -- math functions needed + local LCD_W, LCD_H = rb.LCD_WIDTH, rb.LCD_HEIGHT + + -- returns new image -of- img sized to fit w/h tiling to fit if needed + local function tile(img, w, h) + local hs , ws = img:height(), img:width() + local t_img = rb.new_image(w, h) + + for x = 1, w, ws do t_img:copy(img, x, 1, 1, 1) end + for y = hs, h, hs do t_img:copy(t_img, 1, y, 1, 1, w, hs) end + return t_img + end + + -- resizes src to size of dst + local function resize(dst, src) + -- simple nearest neighbor resize derived from rockbox - pluginlib_bmp.c + -- pretty rough results highly recommend building one more suited.. + local dw, dh = dst:width(), dst:height() + + local xstep = (bit.lshift(src:width(),8) / (dw)) + 1 + local ystep = (bit.lshift(src:height(),8) / (dh)) + + local xpos, ypos = 0, 0 + local src_x, src_y + + -- walk the dest get src pixel + function rsz_trans(val, x, y) + if x == 1 then + src_y = bit.rshift(ypos,8) + 1 + xpos = xstep - bit.rshift(xstep,4) + 1 + ypos = ypos + ystep; + end + src_x = bit.rshift(xpos,8) + 1 + xpos = xpos + xstep + return (src:get(src_x, src_y, true) or 0) + end + --/* (dst*, [x1, y1, x2, y2, dx, dy, clip, function]) */ + dst:marshal(1, 1, dw, dh, _NIL, _NIL, false, rsz_trans) + end + + -- returns new image -of- img rotated in whole degrees 0 - 360 + local function rotate(img, degrees) + -- we do this backwards as if dest was the unrotated object + degrees = 360 - degrees + local c, s = _math.d_cos(degrees), _math.d_sin(degrees) + + -- get the center of the source image + local s_xctr, s_yctr = img:width() / 2, img:height() / 2 + + -- get the the new center of the dest image at rotation angle + local d_xctr = ((math.abs(s_xctr * c) + math.abs(s_yctr * s))/ 10000) + 1 + local d_yctr = ((math.abs(s_xctr * s) + math.abs(s_yctr * c))/ 10000) + 1 + + -- calculate size of rect new image will occupy + local dw, dh = d_xctr * 2 - 1, d_yctr * 2 - 1 + + local r_img = rb.new_image(dw, dh) + -- r_img:clear() -- doesn't need cleared as we walk every pixel + + --[[rotation works on origin of 0,0 we need to offset to the center of the + image and then place the upper left back at the origin (0, 0)]] + --[[0,0|-----| ^< |-------| v> 0,0|-------| + | | | 0,0 | | | + |_____| |_______| |_______| ]] + + -- walk the dest get translated src pixel, oversamples src to fill gaps + function rot_trans(val, x, y) + -- move center x/y to the origin + local xtran = x - d_xctr; + local ytran = y - d_yctr; + + -- rotate about the center of the image by x degrees + local yrot = ((xtran * s) + (ytran * c)) / 10000 + s_yctr + local xrot = ((xtran * c) - (ytran * s)) / 10000 + s_xctr + -- upper left of src image back to origin, copy src pixel + return img:get(xrot, yrot, true) or 0 + end + r_img:marshal(1, 1, dw, dh, _NIL, _NIL, false, rot_trans) + return r_img + end + + -- saves img to file: name + local function save(img, name) + -- bmp saving derived from rockbox - screendump.c + -- bitdepth is limited by the device + -- eg. device displays greyscale, rgb images are saved greyscale + local file + + local fbuffer = {} -- concat buffer for file writes, reused + + local function dump_fbuffer(thresh) + if #fbuffer >= thresh then + file:write(table.concat(fbuffer)) + for i=1, #fbuffer do fbuffer[i] = _NIL end -- reuse table + end + end + + local function s_bytesLE(bits, value) + -- bits must be multiples of 8 (sizeof byte) + local byte + local result = "" + for b = 1, bit.rshift(bits, 3) do + if value > 0 then + byte = value % 256 + value = (value - byte) / 256 + result = result .. string.char(byte) + else + result = result .. string.char(0) + end + end + return result + end + + local function s_bytesBE(bits, value) + -- bits must be multiples of 8 (sizeof byte) + local byte + local result = "" + for b = 1, bit.rshift(bits, 3) do + if value > 0 then + byte = value % 256 + value = (value - byte) / 256 + result = string.char(byte) .. result + else + result = string.char(0) .. result + end + end + return result + end + + local function c_cmp(color, shift) + -- [RR][GG][BB] + return bit.band(bit.rshift(color, shift), 0xFF) + end + + local cmp = {["r"] = function(c) return c_cmp(c, 16) end, + ["g"] = function(c) return c_cmp(c, 08) end, + ["b"] = function(c) return c_cmp(c, 00) end} + + local function bmp_color(color) + return s_bytesLE(8, cmp.b(color)).. + s_bytesLE(8, cmp.g(color)).. + s_bytesLE(8, cmp.r(color)).. + s_bytesLE(8, 0) .. "" + end -- c_cmp(color, c.r)) + + local function bmp_color_mix(c1, c2, num, den) + -- mixes c1 and c2 as ratio of numerator / denominator + -- used 2x each save results + local bc1, gc1, rc1 = cmp.b(c1), cmp.g(c1), cmp.r(c1) + + return s_bytesLE(8, cmp.b(c2) - bc1 * num / den + bc1).. + s_bytesLE(8, cmp.g(c2) - gc1 * num / den + gc1).. + s_bytesLE(8, cmp.r(c2) - rc1 * num / den + rc1).. + s_bytesLE(8, 0) .. "" + end + + local w, h = img:width(), img:height() + local depth = tonumber(img:__tostring(6)) -- RLI_INFO_DEPTH = 0x6 + local format = tonumber(img:__tostring(7)) -- RLI_INFO_FORMAT = 0x7 + + local bpp, bypl -- bits per pixel, bytes per line + -- bypl, pad rows to a multiple of 4 bytes + if depth <= 4 then + bpp = 8 -- 256 color image + bypl = (w + 3) + elseif depth <= 16 then + bpp = 16 + bypl = (w * 2 + 3) + else + bpp = 24 + bypl = (w * 3 + 3) + end + + local linebytes = bit.band(bypl, bit.bnot(3)) + + local bytesperpixel = bit.rshift(bpp, 3) + local headersz = 54 + local imgszpad = h * linebytes + + local compression, n_colors = 0, 0 + local h_ppm, v_ppm = 0x00000EC4, 0x00000EC4 --Pixels Per Meter ~ 96 dpi + + if depth == 16 then + compression = 3 -- BITFIELDS + n_colors = 3 + elseif depth <= 8 then + n_colors = bit.lshift(1, depth) + end + + headersz = headersz + (4 * n_colors) + + file = io.open('/' .. name, "w+") -- overwrite, rb ignores the 'b' flag + + if not file then + rb.splash(rb.HZ, "Error opening /" .. name) + return + end + -- create a bitmap header 'rope' with image details -- concatenated at end + local bmpheader = fbuffer + + bmpheader[01] = "BM" + bmpheader[02] = s_bytesLE(32, headersz + imgszpad) + bmpheader[03] = "\0\0\0\0" -- WORD reserved 1 & 2 + bmpheader[04] = s_bytesLE(32, headersz) -- BITMAPCOREHEADER size + bmpheader[05] = s_bytesLE(32, 40) -- BITMAPINFOHEADER size + + bmpheader[06] = s_bytesLE(32, w) + bmpheader[07] = s_bytesLE(32, h) + bmpheader[08] = "\1\0" -- WORD color planes ALWAYS 1 + bmpheader[09] = s_bytesLE(16, bpp) -- bits/pixel + bmpheader[10] = s_bytesLE(32, compression) + bmpheader[11] = s_bytesLE(32, imgszpad) + bmpheader[12] = s_bytesLE(32, h_ppm) -- biXPelsPerMeter + bmpheader[13] = s_bytesLE(32, v_ppm) -- biYPelsPerMeter + bmpheader[14] = s_bytesLE(32, n_colors) + bmpheader[15] = s_bytesLE(32, n_colors) + + -- Color Table (#n_colors entries) + if depth == 1 then -- assuming positive display + bmpheader[#bmpheader + 1] = bmp_color(0xFFFFFF) + bmpheader[#bmpheader + 1] = bmp_color(0x0) + elseif depth == 2 then + bmpheader[#bmpheader + 1] = bmp_color(0xFFFFFF) + bmpheader[#bmpheader + 1] = bmp_color_mix(0xFFFFFF, 0, 1, 3) + bmpheader[#bmpheader + 1] = bmp_color_mix(0xFFFFFF, 0, 2, 3) + bmpheader[#bmpheader + 1] = bmp_color(0x0) + elseif depth == 16 then + -- red bitfield mask + bmpheader[#bmpheader + 1] = s_bytesLE(32, 0x0000F800) + -- green bitfield mask + bmpheader[#bmpheader + 1] = s_bytesLE(32, 0x000007E0) + -- blue bitfield mask + bmpheader[#bmpheader + 1] = s_bytesLE(32, 0x0000001F) + end + + dump_fbuffer(0) -- write the header to the file now + + local imgdata = fbuffer + -- pad rows to a multiple of 4 bytes + local bytesleft = linebytes - (bytesperpixel * w) + local t_data = {} + local fs_bytes_E = s_bytesLE -- default save in Little Endian + + if format == 3553 then -- RGB565SWAPPED + fs_bytes_E = s_bytesBE -- Saves in Big Endian + end + + -- Bitmap lines start at bottom unless biHeight is negative + for point in img:points(1, h, w + bytesleft, 1) do + imgdata[#imgdata + 1] = fs_bytes_E(bpp, point or 0) + dump_fbuffer(31) -- buffered write, increase # for performance + end + + dump_fbuffer(0) --write leftovers to file + + file:close() + end -- save(img, name) + + --searches an image for target color + local function search(img, x1, y1, x2, y2, targetclr, variation, stepx, stepy) + + if variation > 128 then variation = 128 end + if variation < -128 then variation = -128 end + + local targeth = targetclr + variation + local targetl = targetclr - variation + + if targeth < targetl then + local swap = targeth + targeth = targetl + targetl = swap + end + + for point, x, y in img:points(x1, y1, x2, y2, stepx, stepy) do + if point >= targetl and point <= targeth then + return point, x, y + end + end + return nil, nil, nil + end + + --[[ we won't be extending these into RLI_IMAGE]] + -- creates a new rbimage size w x h + local function new(w, h) + return rb.new_image(w, h) + end + + -- returns new image -of- file: name (_NIL if error) + local function load(name) + return rb.read_bmp_file("/" .. name) + end + + -- expose tostring constants to outside through _img table + _img.RLI_INFO_ALL = 0x0 + _img.RLI_INFO_TYPE = 0x1 + _img.RLI_INFO_WIDTH = 0x2 + _img.RLI_INFO_HEIGHT = 0x3 + _img.RLI_INFO_ELEMS = 0x4 + _img.RLI_INFO_BYTES = 0x5 + _img.RLI_INFO_DEPTH = 0x6 + _img.RLI_INFO_FORMAT = 0x7 + _img.RLI_INFO_ADDRESS = 0x8 + + -- expose functions to the outside through _img table + _img.save = save + _img.search = search + _img.rotate = rotate + _img.resize = resize + _img.tile = tile + + -- adds the above _img functions into the metatable for RLI_IMAGE + local ex = getmetatable(rb.lcd_framebuffer()) + for k, v in pairs(_img) do + if ex[k] == _NIL then ex[k] = v end + end + -- not exposed through RLI_IMAGE + _img.new = new + _img.load = load + +end -- _img functions + +return _img diff --git a/apps/plugins/lua/include_lua/lcd.lua b/apps/plugins/lua/include_lua/lcd.lua new file mode 100644 index 0000000000..62fa988ec1 --- /dev/null +++ b/apps/plugins/lua/include_lua/lcd.lua @@ -0,0 +1,153 @@ +--[[ Lua LCD Wrapper functions +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * 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. + * + ****************************************************************************/ +]] + +--[[ Exposed Functions + + _lcd.clear + _lcd.duplicate + _lcd.image + _lcd.set_viewport + _lcd.splashf + _lcd.text_extent + _lcd.update + _lcd.update_rect + +-- Exposed Constants + _lcd.CX + _lcd.CY + _lcd.DEPTH + _lcd.W + _lcd.H + + _lcd + _LCD + +]] +if not rb.lcd_framebuffer then rb.splash(rb.HZ, "No Support!") return nil end + +_LCD = rb.lcd_framebuffer() + +local _lcd = {} do + + --internal constants + local _NIL = nil -- _NIL placeholder + local LCD_W, LCD_H = rb.LCD_WIDTH, rb.LCD_HEIGHT + + -- clamps value to >= min and <= max + local function clamp(val, min, max) + -- Warning doesn't check if min < max + if val < min then + return min + elseif val < max then + return val + end + return max + end + + -- return a copy of lcd screen + local function duplicate(t, screen_img) + screen_img = screen_img or rb.new_image() + screen_img:copy(rb.lcd_framebuffer()) + return screen_img + end + + -- updates screen in specified rectangle + local function update_rect(t, x, y, w, h) + rb.lcd_update_rect(x - 1, y - 1, + clamp(x + w, 1, LCD_W) - 1, + clamp(y + h, 1, LCD_H) - 1) + end + + -- clears lcd, optional.. ([color, x1, y1, x2, y2, clip]) + local function clear(t, clr, ...) + if clr == _NIL and ... == _NIL then + rb.lcd_clear_display() + else + rb.lcd_scroll_stop() --rb really doesn't like bg change while scroll + _LCD:clear(clr, ...) + end + end + + -- loads an image to the screen + local function image(t, src, x, y) + if not src then --make sure an image was passed, otherwise bail + rb.splash(rb.HZ, "No Image!") + return _NIL + end + _LCD:copy(src,x,y,1,1) + end + + -- Formattable version of splash + local function splashf(t, timeout, ...) + rb.splash(timeout, string.format(...)) + end + + -- Gets size of text + local function text_extent(t, msg, font) + font = font or rb.FONT_UI + + return rb.font_getstringsize(msg, font) + end + + -- Sets viewport size + local function set_viewport(t, vp) + if not vp then rb.set_viewport() return end + if rb.LCD_DEPTH == 2 then -- invert 2-bit screens + --vp.drawmode = bit.bxor(vp.drawmode, 4) + vp.fg_pattern = 3 - vp.fg_pattern + vp.bg_pattern = 3 - vp.bg_pattern + end + rb.set_viewport(vp) + end + + -- allows the use of _lcd() as a identifier for the screen + local function index(k, v) + return function(x, ...) + _LCD[v](_LCD, ...) + end + end + + -- allows the use of _lcd() as a identifier for the screen + local function call() + return rb.lcd_framebuffer() + end + + --expose functions to the outside through _lcd table + _lcd.text_extent = text_extent + _lcd.set_viewport = set_viewport + _lcd.duplicate = duplicate + _lcd.update = rb.lcd_update + _lcd.update_rect = update_rect + _lcd.clear = clear + _lcd.splashf = splashf + _lcd.image = image + _lcd.DEPTH = rb.LCD_DEPTH + _lcd.W = rb.LCD_WIDTH + _lcd.H = rb.LCD_HEIGHT + _lcd.CX = (rb.LCD_WIDTH / 2) + _lcd.CY = (rb.LCD_HEIGHT / 2) + _lcd = setmetatable(_lcd,{__index = index, __call = call}) + +end -- _lcd functions + +return _lcd diff --git a/apps/plugins/lua/include_lua/math_ex.lua b/apps/plugins/lua/include_lua/math_ex.lua new file mode 100644 index 0000000000..c0bf55c1ad --- /dev/null +++ b/apps/plugins/lua/include_lua/math_ex.lua @@ -0,0 +1,158 @@ +--[[ Lua Missing Math functions +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * 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. + * + ****************************************************************************/ +]] + +--[[ Exposed Functions + + _math.clamp + _math.clamp_roll + _math.d_sin + _math.d_cos + _math.d_tan + _math.i_sqrt + +]] + +local _math = {} do + + -- internal constants + local _NIL = nil -- _NIL placeholder + + -- clamps value to >= min and <= max + local function clamp(iVal, iMin, iMax) + if iMin > iMax then + local swap = iMin + iMin, iMax = iMax, swap + end + + if iVal < iMin then + return iMin + elseif iVal < iMax then + return iVal + end + + return iMax + end + + -- clamps value to >= min and <= max rolls over to opposite + local function clamp_roll(iVal, iMin, iMax) + if iMin > iMax then + local swap = iMin + iMin, iMax = iMax, swap + end + + if iVal < iMin then + iVal = iMax + elseif iVal > iMax then + iVal = iMin + end + + return iVal + end + + local function i_sqrt(n) + -- Newtons square root approximation + if n < 2 then return n end + local g = n / 2 + local l = 1 + + for c = 1, 25 do -- if l,g haven't converged after 25 iterations quit + + l = (n / g + g)/ 2 + g = (n / l + l)/ 2 + + if g == l then return g end + end + + -- check for period-two cycle between g and l + if g - l == 1 then + return l + elseif l - g == 1 then + return g + end + + return _NIL + end + + local function d_sin(iDeg, bExtraPrecision) + --[[ values are returned multiplied by 10000 + II | I 180-90 | 90-0 + ---(--)--- -------(--)------- + III | IV 180-270 | 270-360 + + sine is only positive in quadrants I , II => 0 - 180 degrees + sine 180-360 degrees is a reflection of sine 0-180 + Bhaskara I's sine approximation formula isn't overly accurate + but it is close enough for rough image work. + ]] + local sign, x + -- no negative angles -10 degrees = 350 degrees + if iDeg < 0 then + x = 360 + (iDeg % 360) + else --keep rotation in 0-360 range + x = iDeg % 360 + end + + -- reflect II & I onto III & IV + if x > 180 then + sign = -1 + x = x % 180 + else + sign = 1 + end + + local x1 = x * (180 - x) + + if bExtraPrecision then -- ~halves the largest errors + if x <= 22 or x >= 158 then + return sign * 39818 * x1 / (40497 - x1) + elseif (x >= 40 and x <= 56) or (x > 124 and x < 140) then + return sign * 40002 * x1 / (40450 - x1) + elseif (x > 31 and x < 71) or (x > 109 and x < 150) then + return sign * 40009 * x1 / (40470 - x1) + end + end + + --multiplied by 10000 so no decimal in results (RB LUA is integer only) + return sign * 40000 * x1 / (40497 - x1) + end + + local function d_cos(iDeg, bExtraPrecision) + --cos is just sine shifed by 90 degrees CCW + return d_sin(90 - iDeg, bExtraPrecision) + end + + local function d_tan(iDeg, bExtraPrecision) + --tan = sin0 / cos0 + return (d_sin(iDeg, bExtraPrecision) * 10000 / d_sin(90 - iDeg, bExtraPrecision)) + end + + --expose functions to the outside through _math table + _math.clamp = clamp + _math.clamp_roll = clamp_roll + _math.i_sqrt = i_sqrt + _math.d_sin = d_sin + _math.d_cos = d_cos + _math.d_tan = d_tan +end -- missing math functions + +return _math diff --git a/apps/plugins/lua/include_lua/print.lua b/apps/plugins/lua/include_lua/print.lua new file mode 100644 index 0000000000..0e9be373d8 --- /dev/null +++ b/apps/plugins/lua/include_lua/print.lua @@ -0,0 +1,377 @@ +--[[ Lua Print functions +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * 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. + * + ****************************************************************************/ +]] + +--[[ Exposed Functions + + _print.clear + _print.f + _print.opt + _print.opt.area + _print.opt.autoupdate + _print.opt.color + _print.opt.column + _print.opt.defaults + _print.opt.get + _print.opt.justify + _print.opt.line + _print.opt.overflow + _print.opt.sel_line + _print.opt.set + +]] + +if not rb.lcd_framebuffer then rb.splash(rb.HZ, "No Support!") return nil end + +local _print = {} do + + -- internal constants + local _clr = require("color") -- _clr functions required + + local _NIL = nil -- _NIL placeholder + local _LCD = rb.lcd_framebuffer() + local LCD_W, LCD_H = rb.LCD_WIDTH, rb.LCD_HEIGHT + local WHITE = _clr.set(-1, 255, 255, 255) + local BLACK = _clr.set(0, 0, 0, 0) + local DRMODE_SOLID = 3 + local col_buf, s_lines = {}, {} + local _p_opts = _NIL + +-- print internal helper functions +-------------------------------------------------------------------------------- + -- clamps value to >= min and <= max + local function clamp(val, min, max) + -- Warning doesn't check if min < max + if val < min then + return min + elseif val < max then + return val + end + return max + end + + -- updates screen in specified rectangle + local function update_rect(x, y, w, h) + rb.lcd_update_rect(x - 1, y - 1, + clamp(x + w, 1, LCD_W) - 1, + clamp(y + h, 1, LCD_H) - 1) + end + + -- Gets size of text + local function text_extent(msg, font) + font = font or rb.FONT_UI + -- res, w, h + return rb.font_getstringsize(msg, font) + end + + -- Sets viewport size + local function set_viewport(vp) + if not vp then rb.set_viewport() return end + + if rb.LCD_DEPTH == 2 then -- invert 2-bit screens + --vp.drawmode = bit.bxor(vp.drawmode, 4) + vp.fg_pattern = 3 - vp.fg_pattern + vp.bg_pattern = 3 - vp.bg_pattern + end + rb.set_viewport(vp) + end + + -- shallow copy of table + function table_clone(t) + local copy = {} + for k, v in pairs(t) do + copy[k] = v + end + return copy + end + + -- Updates a single line on the screen + local function update_line(enabled, opts, line, h) + if enabled ~= true then return end + local o = opts or _p_opts + update_rect(o.x, o.y + line * h + 1, o.width, h) + end + + -- Clears a single line on the screen + local function clear_line(opts, line, h) + local o = opts or _p_opts + _LCD:clear(o.bg_pattern, o.x, o.y + line * h + 1, + o.x + o.width, line * h + h + o.y) + end + + -- Sets the maximum number of lines on the screen + local function max_lines(opts) + local h = opts.height + local _, _, th = text_extent("W", opts.font) + return h / th + end + + --saves the items displayed for side to side scroll + local function col_buf_insert(msg, line, _p_opts) + --if _p_opts.line <= 1 then col_buf = {} end + if not col_buf[line] then + table.insert(col_buf, line, msg) end + end + + --replaces / strips escape characters + local function check_escapes(o, msg) + local tabsz = 2 + local tabstr = string.rep(" ", tabsz) + + local function repl(esc) + local ret = "" + if esc:sub(1,1) == "\t" then ret = string.rep(tabstr, esc:len()) end + return ret + end + + msg = msg:gsub("(%c+)", repl) + + local res, w, h = text_extent(msg, o.font) + return w, h, msg + end +-------------------------------------------------------------------------------- + + -- set defaults for print view + local function set_defaults() + _p_opts = { x = 1, + y = 1, + width = LCD_W - 1, + height = LCD_H - 1, + font = rb.FONT_UI, + drawmode = DRMODE_SOLID, + fg_pattern = WHITE, + bg_pattern = BLACK, + sel_pattern = WHITE, + line = 1, + max_line = _NIL, + col = 0, + ovfl = "auto", + justify = "left", + autoupdate = true, + } + _p_opts.max_line = max_lines(_p_opts) + + s_lines, col_buf = {}, {} + return _p_opts + end + + -- returns table with settings for print + -- if bByRef is _NIL or false then a copy is returned + local function get_settings(bByRef) + _p_opts = _p_opts or set_defaults() + if not bByRef then return table_clone(_p_opts) end + return _p_opts + end + + -- sets the settings for print with your passed table + local function set_settings(t_opts) + _p_opts = t_opts or set_defaults() + if t_opts then + _p_opts.max_line = max_lines(_p_opts) + col_buf = {} + end + end + + -- sets colors for print + local function set_color(fgclr, bgclr, selclr) + local o = get_settings(true) + + if fgclr ~= _NIL then + o.fg_pattern, o.sel_pattern = fgclr, fgclr + end + o.sel_pattern = selclr or o.sel_pattern + o.bg_pattern = bgclr or o.bg_pattern + end + + -- helper function sets up colors/marker for selected items + local function show_selected(iLine, msg) + local o = get_settings() -- using a copy of opts so changes revert + + if s_lines[iLine] == true then + if not rb.lcd_set_background then + o.drawmode = bit.bxor(o.drawmode, 4) + else + o.fg_pattern = o.bg_pattern + o.bg_pattern = o.sel_pattern + end + -- alternative selection method + --msg = "> " .. msg + end + set_viewport(o) + o = _NIL + end + + -- sets line explicitly or increments line if line is _NIL + local function set_line(iLine) + local o = get_settings(true) + + o.line = iLine or o.line + 1 + + if(o.line < 1 or o.line > o.max_line) then + o.line = 1 + end + end + + -- clears the set print area + local function clear() + local o = get_settings(true) + _LCD:clear(o.bg_pattern, o.x, o.y, o.x + o.width, o.y + o.height) + if o.autoupdate == true then rb.lcd_update() end + set_line(1) + for i=1, #col_buf do col_buf[i] = _NIL end + s_lines = {} + collectgarbage("collect") + end + + -- screen update after each call to print.f + local function set_update(bAutoUpdate) + local o = get_settings(true) + o.autoupdate = bAutoUpdate or false + end + + -- sets print area + local function set_area(x, y, w, h) + local o = get_settings(true) + o.x, o.y = clamp(x, 1, LCD_W), clamp(y, 1, LCD_H) + o.width, o.height = clamp(w, 1, LCD_W - o.x), clamp(h, 1, LCD_H - o.y) + o.max_line = max_lines(_p_opts) + + clear() + return o.line, o.max_line + end + + -- when string is longer than print width scroll -- "auto", "manual", "none" + local function set_overflow(str_mode) + -- "auto", "manual", "none" + local str_mode = str_mode or "auto" + local o = get_settings(true) + o.ovfl = str_mode:lower() + col_buf = {} + end + + -- aligns text to: "left", "center", "right" + local function set_justify(str_mode) + -- "left", "center", "right" + local str_mode = str_mode or "left" + local o = get_settings(true) + o.justify = str_mode:lower() + end + + -- selects line + local function select_line(iLine) + s_lines[iLine] = true + end + + -- Internal print function + local function print_internal(t_opts, x, w, h, msg) + + local o = t_opts + if o.justify == "center" then + x = x + (o.width - w) / 2 + elseif o.justify == "right" then + x = x + (o.width - w) + end + + local line = o.line - 1 -- rb is 0-based lua is 1-based + if(o.ovfl == "auto" and w >= o.width) then -- -o.x + rb.lcd_puts_scroll(0, line, msg) + else + rb.lcd_putsxy(x, line * h, msg) + if o.ovfl == "manual" then --save msg for later side scroll + col_buf_insert(msg, o.line, o) + end + end + + --only update the line we changed + update_line(o.autoupdate, o, line, h) + + set_line(_NIL) -- increments line counter + end + + -- Helper function that acts mostly like a normal printf() would + local function printf(...) + local o = get_settings(true) + local w, h, msg + local line = o.line - 1 -- rb is 0-based lua is 1-based + if not (...) or (...) == "\n" then -- handles blank line / single '\n' + local res, w, h = text_extent(" ", o.font) + + clear_line(o, line, h) + update_line(o.autoupdate, o, line, h) + + if (...) then set_line(_NIL) end + + return o.line, o.max_line, o.width, h + end + + msg = string.format(...) + + show_selected(o.line, msg) + + w, h, msg = check_escapes(o, msg) + + print_internal(o, o.col, w, h, msg) + + return o.line, o.max_line, w, h + end + + -- x > 0 scrolls right x < 0 scrolls left + local function set_column(x) + local o = get_settings() + if o.ovfl ~= "manual" then return end -- no buffer stored to scroll + local res, w, h, str, line + + for key, value in pairs(col_buf) do + line = key - 1 -- rb is 0-based lua is 1-based + o.line = key + + if value then + show_selected(key, value) + res, w, h = text_extent(value, o.font) + clear_line(o, line, h) + + print_internal(o, x + o.col, w, h, value) + update_line(o.autoupdate, o, line, h) + end + end + o = _NIL + end + + --expose functions to the outside through _print table + _print.opt = {} + _print.opt.column = set_column + _print.opt.color = set_color + _print.opt.area = set_area + _print.opt.set = set_settings + _print.opt.get = get_settings + _print.opt.defaults = set_defaults + _print.opt.overflow = set_overflow + _print.opt.justify = set_justify + _print.opt.sel_line = select_line + _print.opt.line = set_line + _print.opt.autoupdate = set_update + _print.clear = clear + _print.f = printf + +end --_print functions + +return _print diff --git a/apps/plugins/lua/include_lua/timer.lua b/apps/plugins/lua/include_lua/timer.lua new file mode 100644 index 0000000000..6797874329 --- /dev/null +++ b/apps/plugins/lua/include_lua/timer.lua @@ -0,0 +1,114 @@ +--[[ Lua Timer functions +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * 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. + * + ****************************************************************************/ +]] + +--[[ Exposed Functions + + _timer.active + _timer.check + _timer.split + _timer.start + _timer.stop + +]] + +local _timer = {} do + + --internal constants + local _NIL = nil -- _NIL placeholder + + -- newer versions of lua use table.unpack + local unpack = unpack or table.unpack + + --stores time elapsed at call to split; only vaid for unique timers + local function split(index) + if type(index) ~= "table" then return end + index[#index + 1] = rb.current_tick() - _timer[index] + end + + -- starts a new timer, if index is not specified a unique index is returned + -- numeric or string indices are valid to use directly for permanent timers + -- in this case its up to you to make sure you keep the index unique + local function start(index) + if index == _NIL then + ---if you have _timer.start create timer it returns a unique Id which + -- then has the same methods of _timer :start :stop :check :split + index = setmetatable({}, {__index = _timer}) + end + if _timer[index] == _NIL then + _timer[index] = rb.current_tick() + end + return index + end + + -- returns time elapsed in centiseconds, assigning bCheckonly keeps timer active + local function stop(index, bCheckonly) + + local time_end = rb.current_tick() + index = index or 0 + if not _timer[index] then + return 0 + else + local time_start = _timer[index] + if not bCheckonly then _timer[index] = _NIL end -- destroy timer + if type(index) ~= "table" then + return time_end - time_start + else + return time_end - time_start, unpack(index) + end + end + end + + -- returns time elapsed in centiseconds, assigning to bUpdate.. updates timer + local function check(index, bUpdate) + local elapsed = stop(index, true) + if bUpdate ~= _NIL and index then + _timer[index] = rb.current_tick() + end + return elapsed + end + + -- returns table of active timers + local function active() + local t_active = {} + local n = 0 + for k,v in pairs(_timer) do + if type(_timer[k]) ~= "function" then + n = n + 1 + t_active[n]=(k) + end + end + return n, t_active + end + + -- expose functions to the outside through _timer table + _timer.active = active + _timer.check = check + _timer.split = split + _timer.start = start + _timer.stop = stop + + -- allows a call to _timer.start() by just calling _timer() + _timer = setmetatable(_timer,{__call = function(t, i) return start(i) end}) +end -- timer functions + +return _timer diff --git a/apps/plugins/lua/lua.make b/apps/plugins/lua/lua.make index 2365150c1e..a8932c0482 100644 --- a/apps/plugins/lua/lua.make +++ b/apps/plugins/lua/lua.make @@ -15,6 +15,9 @@ LUA_OBJ := $(call c2obj, $(LUA_SRC)) OTHER_SRC += $(LUA_SRC) +LUA_INCLUDEDIR := $(LUA_SRCDIR)/include_lua +LUA_INCLUDELIST = blit color draw image lcd math_ex print timer + ifndef APP_TYPE ifneq (,$(strip $(foreach tgt,RECORDER ONDIO,$(findstring $(tgt),$(TARGET))))) ### lowmem targets @@ -30,7 +33,7 @@ else ROCKS += $(LUA_BUILDDIR)/lua.rock endif -$(LUA_BUILDDIR)/lua.rock: $(LUA_OBJ) $(TLSFLIB) $(LUA_BUILDDIR)/actions.lua $(LUA_BUILDDIR)/buttons.lua $(LUA_BUILDDIR)/rocklib_aux.o +$(LUA_BUILDDIR)/lua.rock: $(LUA_OBJ) $(TLSFLIB) $(LUA_BUILDDIR)/actions.lua $(LUA_BUILDDIR)/buttons.lua $(LUA_BUILDDIR)/rocklib_aux.o $(LUA_INCLUDELIST) $(LUA_BUILDDIR)/actions.lua: $(LUA_OBJ) $(LUA_SRCDIR)/action_helper.pl $(call PRINTS,GEN $(@F))$(CC) $(PLUGINFLAGS) $(INCLUDES) -E $(APPSDIR)/plugins/lib/pluginlib_actions.h | $(LUA_SRCDIR)/action_helper.pl > $(LUA_BUILDDIR)/actions.lua @@ -46,6 +49,9 @@ $(LUA_BUILDDIR)/rocklib_aux.c: $(APPSDIR)/plugin.h $(LUA_OBJ) $(LUA_SRCDIR)/rock $(LUA_BUILDDIR)/rocklib_aux.o: $(LUA_BUILDDIR)/rocklib_aux.c $(call PRINTS,CC $(<F))$(CC) $(INCLUDES) $(PLUGINFLAGS) -I $(LUA_SRCDIR) -c $< -o $@ +$(LUA_INCLUDELIST): %: $(LUA_INCLUDEDIR)/%.lua + $(call PRINTS,CP $(subst $(LUA_INCLUDEDIR)/,,$<))cp $< $(LUA_BUILDDIR)/$@.lua + $(LUA_BUILDDIR)/lua.refmap: $(LUA_OBJ) $(TLSFLIB) $(LUA_OUTLDS): $(PLUGIN_LDS) $(LUA_BUILDDIR)/lua.refmap diff --git a/apps/plugins/lua/rocklib.c b/apps/plugins/lua/rocklib.c index 2268063d3f..ced83a51df 100644 --- a/apps/plugins/lua/rocklib.c +++ b/apps/plugins/lua/rocklib.c @@ -9,6 +9,7 @@ * * 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 @@ -47,127 +48,1215 @@ /* - * ----------------------------- + * ----------------------------------------------------------------------------- * * 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 width; + int height; + int stride; + size_t elems; fb_data *data; - fb_data dummy[1][1]; + fb_data dummy[1]; }; -static void rli_wrap(lua_State *L, fb_data *src, int width, int height) +/* holds iterator data for rlimages */ +struct rli_iter_d { - struct rocklua_image *a = (struct rocklua_image *)lua_newuserdata(L, sizeof(struct rocklua_image)); + struct rocklua_image *img; + fb_data *elem; + int x , y; + int x1, y1; + int x2, y2; + int dx, dy; +}; - luaL_getmetatable(L, ROCKLUA_IMAGE); - lua_setmetatable(L, -2); +/* __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}; - a->width = width; - a->height = height; - a->data = src; +#ifdef HAVE_LCD_COLOR + +static inline unsigned invert_color(unsigned rgb) +{ + uint8_t r = 0xFFU - RGB_UNPACK_RED((unsigned) rgb); + uint8_t g = 0xFFU - RGB_UNPACK_GREEN((unsigned) rgb); + uint8_t b = 0xFFU - RGB_UNPACK_BLUE((unsigned) rgb); + + return LCD_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 = 0; +static fb_data y_shift = 0; +static fb_data xy_mask = 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); -static fb_data* rli_alloc(lua_State *L, int width, int height) + *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) { - size_t nbytes = sizeof(struct rocklua_image) + ((width*height) - 1) * sizeof(fb_data); - struct rocklua_image *a = (struct rocklua_image *)lua_newuserdata(L, nbytes); + 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); - a->width = width; - a->height = height; - a->data = &a->dummy[0][0]; + /* 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 = 0; + fb_data new_val = 0; + + 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 = 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; + fb_data clr = *color; + fb_data dst = data_get(ds->elem, ds->x, ds->y); + fb_data src; + + /* Reuse 0 - 7 for src / clr blits*/ + if(op >= 30 && op <= 37) + { + op -= 30; + src = clr; + } + else + src = 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*/ + + data_set(ds->elem, ds->x, ds->y, &dst); + return 1; +} /* blit_transform */ -static int rli_new(lua_State *L) +static int invert_transform(lua_State *L, + struct rli_iter_d *ds, + struct rli_iter_d *ss, + int op, + fb_data *color) { - int width = luaL_checkint(L, 1); - int height = luaL_checkint(L, 2); + (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; } -static struct rocklua_image* rli_checktype(lua_State *L, int arg) +RLI_LUA rli_set(lua_State *L) { - void *ud = luaL_checkudata(L, arg, ROCKLUA_IMAGE); - luaL_argcheck(L, ud != NULL, arg, "'" ROCKLUA_IMAGE "' expected"); - return (struct rocklua_image*) ud; + /*(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); } -static int rli_width(lua_State *L) +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; } -static int rli_height(lua_State *L) +RLI_LUA rli_equal(lua_State *L) { struct rocklua_image *a = rli_checktype(L, 1); - lua_pushnumber(L, a->height); + struct rocklua_image *b = rli_checktype(L, 2); + lua_pushboolean(L, a->data == b->data); return 1; } -static fb_data* rli_element(lua_State *L) +RLI_LUA rli_size(lua_State *L) { struct rocklua_image *a = rli_checktype(L, 1); - int x = luaL_checkint(L, 2); - int y = luaL_checkint(L, 3); + 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, 1 <= x && x <= a->width, 2, - "index out of range"); - luaL_argcheck(L, 1 <= y && y <= a->height, 3, - "index out of range"); + luaL_argcheck(L, i > 0 && i <= (a->elems), 2, ERR_IDX_RANGE); - /* return element address */ - return &a->data[a->width * (y - 1) + (x - 1)]; + 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; } -static int rli_set(lua_State *L) +RLI_LUA rli_tostring(lua_State *L) { - fb_data newvalue = FB_SCALARPACK((unsigned)luaL_checknumber(L, 4)); - *rli_element(L) = newvalue; - return 0; + /* (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); } -static int rli_get(lua_State *L) +RLI_LUA rli_line(lua_State *L) { - lua_pushnumber(L, FB_UNPACK_SCALAR_LCD(*rli_element(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; } -static int rli_tostring(lua_State *L) +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); - lua_pushfstring(L, ROCKLUA_IMAGE ": %dx%d", a->width, a->height); - return 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 = 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}, - {"set", rli_set}, - {"get", rli_get}, - {"width", rli_width}, - {"height", rli_height}, + {"_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"); @@ -189,57 +1278,45 @@ static inline void rli_init(lua_State *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 unsigned_val) +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] */ - if(!lua_isnoneornil(L, -1)) - { - if(unsigned_val) - *(unsigned*)res = luaL_checkint(L, -1); - else - *(int*)res = luaL_checkint(L, -1); - } + 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 struct viewport* opt_viewport(lua_State *L, int narg, struct viewport* alt) +static inline struct viewport* opt_viewport(lua_State *L, + int narg, + struct viewport* vp, + struct viewport* alt) { if(lua_isnoneornil(L, narg)) return alt; - int tablepos = lua_gettop(L); - struct viewport *vp; - - lua_getfield(L, tablepos, "vp"); /* get table['vp'] */ - if(lua_isnoneornil(L, -1)) - { - lua_pop(L, 1); /* Pop nil off stack */ - - vp = (struct viewport*) lua_newuserdata(L, sizeof(struct viewport)); /* Allocate memory and push it as udata on the stack */ - memset(vp, 0, sizeof(struct viewport)); /* Init viewport values to 0 */ - lua_setfield(L, tablepos, "vp"); /* table['vp'] = vp (pops value off the stack) */ - } - else - { - vp = (struct viewport*) lua_touserdata(L, -1); /* Reuse viewport struct */ - lua_pop(L, 1); /* We don't need the value on stack */ - } - luaL_checktype(L, narg, LUA_TTABLE); - check_tablevalue(L, "x", tablepos, &vp->x, false); - check_tablevalue(L, "y", tablepos, &vp->y, false); - check_tablevalue(L, "width", tablepos, &vp->width, false); - check_tablevalue(L, "height", tablepos, &vp->height, false); + 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", tablepos, &vp->font, false); - check_tablevalue(L, "drawmode", tablepos, &vp->drawmode, false); + 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", tablepos, &vp->fg_pattern, true); - check_tablevalue(L, "bg_pattern", tablepos, &vp->bg_pattern, true); + check_tablevalue(L, "fg_pattern", narg, &vp->fg_pattern, true); + check_tablevalue(L, "bg_pattern", narg, &vp->bg_pattern, true); #endif return vp; @@ -247,9 +1324,9 @@ static struct viewport* opt_viewport(lua_State *L, int narg, struct viewport* al RB_WRAP(set_viewport) { - struct viewport *vp = opt_viewport(L, 1, NULL); + static struct viewport vp; int screen = luaL_optint(L, 2, SCREEN_MAIN); - rb->screens[screen]->set_viewport(vp); + rb->screens[screen]->set_viewport(opt_viewport(L, 1, &vp, NULL)); return 0; } |