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fixed and optimized horiz_line for highres 4c
This commit is contained in:
Irmen de Jong
parent
c27248a58b
commit
c478718019
@ -2,10 +2,12 @@
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; Bitmap pixel graphics module for the CommanderX16
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; Custom routines to use the full-screen 640x480 and 320x240 screen modes.
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; This only works on the Cx16. No text layer is currently shown, text can be drawn as part of the bitmap itself.
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; Note: for compatible graphics code that words on C64 too, use the "graphics" module instead.
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; Note: there is no color palette manipulation here, you have to do that yourself or use the "palette" module.
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; These modes are not supported by the documented GRAPH_xxxx kernel routines.
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; No text layer is currently shown, text can be drawn as part of the bitmap itself.
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; Note: for similar graphics routines that also work on the C-64, use the "graphics" module instead.
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; Note: for color palette manipulation, use the "palette" module or write Vera registers yourself.
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;
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;
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; SCREEN MODE LIST:
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; mode 0 = reset back to default text mode
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; mode 1 = bitmap 320 x 240 monochrome
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@ -13,7 +15,7 @@
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; mode 3 = bitmap 320 x 240 x 16c (unsupported TODO not yet implemented)
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; mode 4 = bitmap 320 x 240 x 256c
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; mode 5 = bitmap 640 x 480 monochrome
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; mode 6 = bitmap 640 x 480 x 4c (unsupported TODO not yet implemented)
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; mode 6 = bitmap 640 x 480 x 4c (unsupported TODO being implemented)
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; mode 7 = bitmap 640 x 480 x 16c (unsupported due to lack of VRAM)
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; mode 8 = bitmap 640 x 480 x 256c (unsupported due to lack of VRAM)
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@ -239,34 +241,51 @@ _done
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6 -> {
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; highres 4c
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; TODO also mostly usable for lores 4c?
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color &= 3
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ubyte[4] colorbits
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ubyte ii
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for ii in 3 downto 0 {
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colorbits[ii] = color
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color <<= 2
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}
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void addr_mul_24_for_highres_4c(y, x) ; 24 bits result is in r0 and r1L (highest byte)
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%asm {{
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lda cx16.VERA_ADDR_H
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and #%00000111 ; no auto advance
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sta cx16.VERA_ADDR_H
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stz cx16.VERA_CTRL ; setup vera addr 0
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lda cx16.r1
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and #1
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sta cx16.VERA_ADDR_H
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lda cx16.r0
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sta cx16.VERA_ADDR_L
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lda cx16.r0+1
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sta cx16.VERA_ADDR_M
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phx
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ldx x
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}}
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for x in x to x+length-1
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plot(x, y, color)
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repeat length {
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%asm {{
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txa
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and #3
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tay
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lda cx16.VERA_DATA0
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and gfx2.plot.mask4c,y
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ora colorbits,y
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sta cx16.VERA_DATA0
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cpy #%00000011 ; next vera byte?
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bne +
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inc cx16.VERA_ADDR_L
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bne +
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inc cx16.VERA_ADDR_M
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+ inx ; next pixel
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}}
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}
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; TODO this optimized loop sometimes misses the last pixel ????
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; color &= 3
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; ubyte[4] colorbits
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; ubyte[4] masks
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; ubyte mask = %11111100
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; ubyte ii
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; for ii in 3 downto 0 {
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; colorbits[ii] = color
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; masks[ii] = mask
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; color <<= 2
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; mask <<=2
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; }
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; cx16.VERA_ADDR_H &= %00000111 ; no auto advance
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; void addr_mul_24_for_highres_4c(y, x) ; 24 bits result is in r0 and r1L (highest byte)
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; repeat length {
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; ; TODO optimize the vera memory manipulation in pure assembly
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; ubyte lower_x_bits = lsb(x) & 3
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; ubyte cbits4 = cx16.vpeek(lsb(cx16.r1), cx16.r0) & masks[lower_x_bits] | colorbits[lower_x_bits]
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; cx16.vpoke(lsb(cx16.r1), cx16.r0, cbits4)
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; if lower_x_bits==%00000011
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; cx16.r0++ ; next x byte
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; x++
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; }
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%asm {{
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plx
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}}
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}
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}
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}
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@ -380,12 +399,12 @@ _done
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cx16.VERA_ADDR_H &= %00000111 ; no auto advance
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; TODO also mostly usable for lores 4c?
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void addr_mul_24_for_highres_4c(y, x) ; 24 bits result is in r0 and r1L (highest byte)
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; TODO optimize the loop in pure assembly
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color &= 3
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color <<= gfx2.plot.shift4c[lsb(x) & 3]
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ubyte mask = gfx2.plot.mask4c[lsb(x) & 3]
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repeat height {
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; TODO optimize the vera memory manipulation in pure assembly
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ubyte value = cx16.vpeek(lsb(cx16.r1), cx16.r0) & mask | color
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cx16.vpoke(lsb(cx16.r1), cx16.r0, value)
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cx16.r0 += 640/4
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@ -818,7 +837,7 @@ _done
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}
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sub addr_mul_24_for_highres_4c(uword yy, uword xx) {
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; TODO asmsub, 24 bits calc
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; TODO asmsub, actually do 24 bits calc
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; 24 bits result is in r0 and r1L (highest byte)
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cx16.r0 = xx/4 + yy*(640/4)
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cx16.r1 = 0
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@ -5,12 +5,10 @@
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; Mockup of a classic Amiga Workbench screen.
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; TODO make everything 4 colors
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main {
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sub start() {
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gfx2.screen_mode(6) ; select 640*480 mode
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gfx2.screen_mode(6) ; select 640*480 mode, 4 colors
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uword[4] amigacolors = [$aaa, $000, $fff, $68c] ; gray, black, white, lightblue
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palette.set_rgb(amigacolors, len(amigacolors))
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@ -110,21 +108,23 @@ main {
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widget {
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sub highlightedrect(uword x, uword y, uword width, uword height, ubyte active) {
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sub highlightedrect(uword x, uword y, uword width, uword height, ubyte fill, ubyte active) {
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gfx2.horizontal_line(x, y, width, 2)
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gfx2.vertical_line(x, y+1, height-1, 2)
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gfx2.vertical_line(x+width-1, y+1, height-1, 1)
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gfx2.horizontal_line(x+1, y+height-1, width-2, 1)
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if active
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gfx2.fillrect(x+1,y+1,width-2,height-2, 3)
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else
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gfx2.fillrect(x+1,y+1,width-2,height-2, 0)
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if fill {
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if active
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gfx2.fillrect(x+1,y+1,width-2,height-2, 3)
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else
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gfx2.fillrect(x+1,y+1,width-2,height-2, 0)
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}
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}
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sub icon(uword x, uword y, uword caption) {
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const ubyte width = 56
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const ubyte height = 28
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highlightedrect(x, y, width, height, false)
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highlightedrect(x, y, width, height, false, false)
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uword middlex = x+width/2+1
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ubyte halfstring = string.length(caption) * 4
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gfx2.text(middlex-halfstring,y+height+1,1,caption)
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@ -139,7 +139,7 @@ widget {
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sub window_titlebar(uword x, uword y, uword width, uword titlestr, ubyte active) {
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const ubyte height = 11
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widget.highlightedrect(x+widget.window_close_icon.width, y, width-64, height, active)
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widget.highlightedrect(x+widget.window_close_icon.width, y, width-64, height, true, active)
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gfx2.plot(x+widget.window_close_icon.width, y+height-1, 1) ; correct bottom left corner
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gfx2.text(x+32, y+1, 1, titlestr)
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widget.window_close_icon(x, y, active)
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@ -150,7 +150,7 @@ widget {
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sub window_flipsize_icon(uword x, uword y, ubyte active) {
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const uword width = 22
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const uword height = 11
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highlightedrect(x, y, width, height, active)
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highlightedrect(x, y, width, height, true, active)
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gfx2.plot(x, y+height-1, 1) ; correct bottom left corner
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gfx2.rect(x+5, y+2, width-9, height-4, 1)
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gfx2.rect(x+5, y+2, 7, 4, 1)
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@ -160,7 +160,7 @@ widget {
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sub window_order_icon(uword x, uword y, ubyte active) {
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const uword width = 22
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const uword height = 11
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highlightedrect(x, y, width, height, active)
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highlightedrect(x, y, width, height, true, active)
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gfx2.plot(x, y+height-1, 1) ; correct bottom left corner
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gfx2.rect(x+4, y+2, 10, 5, 1) ; back
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gfx2.fillrect(x+9, y+5, 8, 3, 2) ; white front
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@ -170,7 +170,7 @@ widget {
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sub window_close_icon(uword x, uword y, ubyte active) {
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const uword width = 20
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const uword height = 11
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highlightedrect(x, y, width, height, active)
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highlightedrect(x, y, width, height, true, active)
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gfx2.plot(x, y+height-1, 1) ; correct bottom left corner
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gfx2.rect(x+7, y+3, 5, 5, 1)
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gfx2.fillrect(x+8, y+4, 3, 3, 2)
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@ -191,7 +191,6 @@ widget {
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}
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sub window_rightborder(uword x, uword y, uword width, uword height, ubyte active) {
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; TODO scrollbar and scroll icons
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gfx2.vertical_line(x+width-1-16, y+11, height-13,2)
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gfx2.vertical_line(x+width-1, y+11, height-11,1)
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ubyte color = 0
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@ -204,5 +203,7 @@ widget {
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gfx2.line(x+width-1-13,y+height-3, x+width-1-3, y+height-3-5, 1)
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gfx2.horizontal_line(x+width-1-16, y+height-10, 16, 2)
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highlightedrect(x+width-13, y+12, 10, height-23, false, false)
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; TODO scroll icons
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}
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}
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@ -11,8 +11,8 @@ main {
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gfx2.screen_mode(6)
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testrect()
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; testhorizontal()
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;testvertical()
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testhorizontal()
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testvertical()
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sys.wait(9900)
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gfx2.screen_mode(0)
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@ -14,6 +14,9 @@ main {
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cx16.vpoke(1, mkword(hh, ll), lsb(screencolorRGB))
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cx16.vpoke(lsb(cx16.r1), cx16.r0, cbits4) ; TODO r0 is alreay in r0, avoid bogus assignment here
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cbits4 &= gfx2.plot.mask4c[lower2_x_bits] ; TODO why lda..and instead of and mask,y?
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cbits4 |= colorbits[lower2_x_bits] ; TODO why lda..ora instead of ora mask,y?
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; ubyte value
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; ubyte bb1
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