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-rw-r--r--firmware/drivers/lcd-16bit-common.c574
-rw-r--r--firmware/drivers/lcd-16bit.c12
-rw-r--r--firmware/drivers/lcd-color-common.c605
3 files changed, 616 insertions, 575 deletions
diff --git a/firmware/drivers/lcd-16bit-common.c b/firmware/drivers/lcd-16bit-common.c
index 93e7c2e012..d006b3900a 100644
--- a/firmware/drivers/lcd-16bit-common.c
+++ b/firmware/drivers/lcd-16bit-common.c
@@ -28,44 +28,6 @@
#error ROW_INC or COL_INC not defined
#endif
-enum fill_opt {
- OPT_NONE = 0,
- OPT_SET,
- OPT_COPY
-};
-
-/*** globals ***/
-fb_data lcd_static_framebuffer[LCD_FBHEIGHT][LCD_FBWIDTH]
- IRAM_LCDFRAMEBUFFER CACHEALIGN_AT_LEAST_ATTR(16);
-fb_data *lcd_framebuffer = &lcd_static_framebuffer[0][0];
-
-static fb_data* lcd_backdrop = NULL;
-static long lcd_backdrop_offset IDATA_ATTR = 0;
-
-static struct viewport default_vp =
-{
- .x = 0,
- .y = 0,
- .width = LCD_WIDTH,
- .height = LCD_HEIGHT,
- .font = FONT_SYSFIXED,
- .drawmode = DRMODE_SOLID,
- .fg_pattern = LCD_DEFAULT_FG,
- .bg_pattern = LCD_DEFAULT_BG,
-};
-
-static struct viewport* current_vp IDATA_ATTR = &default_vp;
-
-/* LCD init */
-void lcd_init(void)
-{
- lcd_clear_display();
-
- /* Call device specific init */
- lcd_init_device();
- scroll_init();
-}
-
/* Clear the current viewport */
void lcd_clear_viewport(void)
{
@@ -146,70 +108,6 @@ void lcd_clear_viewport(void)
lcd_scroll_stop_viewport(current_vp);
}
-/*** parameter handling ***/
-
-void lcd_set_drawmode(int mode)
-{
- current_vp->drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID);
-}
-
-int lcd_get_drawmode(void)
-{
- return current_vp->drawmode;
-}
-
-void lcd_set_foreground(unsigned color)
-{
- current_vp->fg_pattern = color;
-}
-
-unsigned lcd_get_foreground(void)
-{
- return current_vp->fg_pattern;
-}
-
-void lcd_set_background(unsigned color)
-{
- current_vp->bg_pattern = color;
-}
-
-unsigned lcd_get_background(void)
-{
- return current_vp->bg_pattern;
-}
-
-void lcd_set_drawinfo(int mode, unsigned fg_color, unsigned bg_color)
-{
- lcd_set_drawmode(mode);
- current_vp->fg_pattern = fg_color;
- current_vp->bg_pattern = bg_color;
-}
-
-int lcd_getwidth(void)
-{
- return current_vp->width;
-}
-
-int lcd_getheight(void)
-{
- return current_vp->height;
-}
-
-void lcd_setfont(int newfont)
-{
- current_vp->font = newfont;
-}
-
-int lcd_getfont(void)
-{
- return current_vp->font;
-}
-
-int lcd_getstringsize(const unsigned char *str, int *w, int *h)
-{
- return font_getstringsize(str, w, h, current_vp->font);
-}
-
/*** low-level drawing functions ***/
static void ICODE_ATTR setpixel(fb_data *address)
@@ -249,155 +147,6 @@ lcd_fastpixelfunc_type* const lcd_fastpixelfuncs_backdrop[8] = {
lcd_fastpixelfunc_type* const * lcd_fastpixelfuncs = lcd_fastpixelfuncs_bgcolor;
-void lcd_set_backdrop(fb_data* backdrop)
-{
- lcd_backdrop = backdrop;
- if (backdrop)
- {
- lcd_backdrop_offset = (long)backdrop - (long)lcd_framebuffer;
- lcd_fastpixelfuncs = lcd_fastpixelfuncs_backdrop;
- }
- else
- {
- lcd_backdrop_offset = 0;
- lcd_fastpixelfuncs = lcd_fastpixelfuncs_bgcolor;
- }
-}
-
-fb_data* lcd_get_backdrop(void)
-{
- return lcd_backdrop;
-}
-
-/* Clear the whole display */
-void lcd_clear_display(void)
-{
- struct viewport* old_vp = current_vp;
-
- current_vp = &default_vp;
-
- lcd_clear_viewport();
-
- current_vp = old_vp;
-}
-
-/* Set a single pixel */
-void lcd_drawpixel(int x, int y)
-{
- if ( ((unsigned)x < (unsigned)current_vp->width)
- && ((unsigned)y < (unsigned)current_vp->height)
-#if defined(HAVE_VIEWPORT_CLIP)
- && ((unsigned)x < (unsigned)LCD_WIDTH)
- && ((unsigned)y < (unsigned)LCD_HEIGHT)
-#endif
- )
- lcd_fastpixelfuncs[current_vp->drawmode](FBADDR(current_vp->x+x, current_vp->y+y));
-}
-
-/* Draw a line */
-void lcd_drawline(int x1, int y1, int x2, int y2)
-{
- int numpixels;
- int i;
- int deltax, deltay;
- int d, dinc1, dinc2;
- int x, xinc1, xinc2;
- int y, yinc1, yinc2;
- lcd_fastpixelfunc_type *pfunc = lcd_fastpixelfuncs[current_vp->drawmode];
-
- deltay = abs(y2 - y1);
- if (deltay == 0)
- {
- /* DEBUGF("lcd_drawline() called for horizontal line - optimisation.\n"); */
- lcd_hline(x1, x2, y1);
- return;
- }
- deltax = abs(x2 - x1);
- if (deltax == 0)
- {
- /* DEBUGF("lcd_drawline() called for vertical line - optimisation.\n"); */
- lcd_vline(x1, y1, y2);
- return;
- }
- xinc2 = 1;
- yinc2 = 1;
-
- if (deltax >= deltay)
- {
- numpixels = deltax;
- d = 2 * deltay - deltax;
- dinc1 = deltay * 2;
- dinc2 = (deltay - deltax) * 2;
- xinc1 = 1;
- yinc1 = 0;
- }
- else
- {
- numpixels = deltay;
- d = 2 * deltax - deltay;
- dinc1 = deltax * 2;
- dinc2 = (deltax - deltay) * 2;
- xinc1 = 0;
- yinc1 = 1;
- }
- numpixels++; /* include endpoints */
-
- if (x1 > x2)
- {
- xinc1 = -xinc1;
- xinc2 = -xinc2;
- }
-
- if (y1 > y2)
- {
- yinc1 = -yinc1;
- yinc2 = -yinc2;
- }
-
- x = x1;
- y = y1;
-
- for (i = 0; i < numpixels; i++)
- {
- if ( ((unsigned)x < (unsigned)current_vp->width)
- && ((unsigned)y < (unsigned)current_vp->height)
-#if defined(HAVE_VIEWPORT_CLIP)
- && ((unsigned)x < (unsigned)LCD_WIDTH)
- && ((unsigned)y < (unsigned)LCD_HEIGHT)
-#endif
- )
- pfunc(FBADDR(x + current_vp->x, y + current_vp->y));
-
- if (d < 0)
- {
- d += dinc1;
- x += xinc1;
- y += yinc1;
- }
- else
- {
- d += dinc2;
- x += xinc2;
- y += yinc2;
- }
- }
-}
-
-/* Draw a rectangular box */
-void lcd_drawrect(int x, int y, int width, int height)
-{
- if ((width <= 0) || (height <= 0))
- return;
-
- int x2 = x + width - 1;
- int y2 = y + height - 1;
-
- lcd_vline(x, y, y2);
- lcd_vline(x2, y, y2);
- lcd_hline(x, x2, y);
- lcd_hline(x, x2, y2);
-}
-
/* Fill a rectangular area */
void lcd_fillrect(int x, int y, int width, int height)
{
@@ -1087,326 +836,3 @@ static void ICODE_ATTR lcd_alpha_bitmap_part_mix(const fb_data* image,
BLEND_FINISH;
}
-
-/* Draw a full native bitmap */
-void lcd_bitmap(const fb_data *src, int x, int y, int width, int height)
-{
- lcd_bitmap_part(src, 0, 0, STRIDE(SCREEN_MAIN, width, height), x, y, width, height);
-}
-
-/* Draw a full native bitmap with a transparent color */
-void lcd_bitmap_transparent(const fb_data *src, int x, int y,
- int width, int height)
-{
- lcd_bitmap_transparent_part(src, 0, 0,
- STRIDE(SCREEN_MAIN, width, height), x, y, width, height);
-}
-
-/* draw alpha bitmap for anti-alias font */
-void ICODE_ATTR lcd_alpha_bitmap_part(const unsigned char *src, int src_x,
- int src_y, int stride, int x, int y,
- int width, int height)
-{
- lcd_alpha_bitmap_part_mix(NULL, src, src_x, src_y, x, y, width, height, 0, stride);
-}
-
-/* Draw a partial bitmap (mono or native) including alpha channel */
-void ICODE_ATTR lcd_bmp_part(const struct bitmap* bm, int src_x, int src_y,
- int x, int y, int width, int height)
-{
- int bitmap_stride = STRIDE_MAIN(bm->width, bm->height);
- if (bm->format == FORMAT_MONO)
- lcd_mono_bitmap_part(bm->data, src_x, src_y, bitmap_stride, x, y, width, height);
- else if (bm->alpha_offset > 0)
- lcd_alpha_bitmap_part_mix((fb_data*)bm->data, bm->data+bm->alpha_offset,
- src_x, src_y, x, y, width, height,
- bitmap_stride, ALIGN_UP(bm->width, 2));
- else
- lcd_bitmap_transparent_part((fb_data*)bm->data,
- src_x, src_y, bitmap_stride, x, y, width, height);
-}
-
-/* Draw a native bitmap with alpha channel */
-void ICODE_ATTR lcd_bmp(const struct bitmap *bmp, int x, int y)
-{
- lcd_bmp_part(bmp, 0, 0, x, y, bmp->width, bmp->height);
-}
-
-/**
- * |R| |1.000000 -0.000001 1.402000| |Y'|
- * |G| = |1.000000 -0.334136 -0.714136| |Pb|
- * |B| |1.000000 1.772000 0.000000| |Pr|
- * Scaled, normalized, rounded and tweaked to yield RGB 565:
- * |R| |74 0 101| |Y' - 16| >> 9
- * |G| = |74 -24 -51| |Cb - 128| >> 8
- * |B| |74 128 0| |Cr - 128| >> 9
- */
-#define YFAC (74)
-#define RVFAC (101)
-#define GUFAC (-24)
-#define GVFAC (-51)
-#define BUFAC (128)
-
-static inline int clamp(int val, int min, int max)
-{
- if (val < min)
- val = min;
- else if (val > max)
- val = max;
- return val;
-}
-
-#ifndef _WIN32
-/*
- * weak attribute doesn't work for win32 as of gcc 4.6.2 and binutils 2.21.52
- * When building win32 simulators, we won't be using an optimized version of
- * lcd_blit_yuv(), so just don't use the weak attribute.
- */
-__attribute__((weak))
-#endif
-void lcd_yuv_set_options(unsigned options)
-{
- (void)options;
-}
-
-/* Draw a partial YUV colour bitmap */
-#ifndef _WIN32
-__attribute__((weak))
-#endif
-void lcd_blit_yuv(unsigned char * const src[3],
- int src_x, int src_y, int stride,
- int x, int y, int width, int height)
-{
- const unsigned char *ysrc, *usrc, *vsrc;
- int linecounter;
- fb_data *dst, *row_end;
- long z;
-
- /* width and height must be >= 2 and an even number */
- width &= ~1;
- linecounter = height >> 1;
-
-#if LCD_WIDTH >= LCD_HEIGHT
- dst = FBADDR(x, y);
- row_end = dst + width;
-#else
- dst = FBADDR(LCD_WIDTH - y - 1, x);
- row_end = dst + LCD_WIDTH * width;
-#endif
-
- z = stride * src_y;
- ysrc = src[0] + z + src_x;
- usrc = src[1] + (z >> 2) + (src_x >> 1);
- vsrc = src[2] + (usrc - src[1]);
-
- /* stride => amount to jump from end of last row to start of next */
- stride -= width;
-
- /* upsampling, YUV->RGB conversion and reduction to RGB565 in one go */
-
- do
- {
- do
- {
- int y, cb, cr, rv, guv, bu, r, g, b;
-
- y = YFAC*(*ysrc++ - 16);
- cb = *usrc++ - 128;
- cr = *vsrc++ - 128;
-
- rv = RVFAC*cr;
- guv = GUFAC*cb + GVFAC*cr;
- bu = BUFAC*cb;
-
- r = y + rv;
- g = y + guv;
- b = y + bu;
-
- if ((unsigned)(r | g | b) > 64*256-1)
- {
- r = clamp(r, 0, 64*256-1);
- g = clamp(g, 0, 64*256-1);
- b = clamp(b, 0, 64*256-1);
- }
-
- *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9);
-
-#if LCD_WIDTH >= LCD_HEIGHT
- dst++;
-#else
- dst += LCD_WIDTH;
-#endif
-
- y = YFAC*(*ysrc++ - 16);
- r = y + rv;
- g = y + guv;
- b = y + bu;
-
- if ((unsigned)(r | g | b) > 64*256-1)
- {
- r = clamp(r, 0, 64*256-1);
- g = clamp(g, 0, 64*256-1);
- b = clamp(b, 0, 64*256-1);
- }
-
- *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9);
-
-#if LCD_WIDTH >= LCD_HEIGHT
- dst++;
-#else
- dst += LCD_WIDTH;
-#endif
- }
- while (dst < row_end);
-
- ysrc += stride;
- usrc -= width >> 1;
- vsrc -= width >> 1;
-
-#if LCD_WIDTH >= LCD_HEIGHT
- row_end += LCD_WIDTH;
- dst += LCD_WIDTH - width;
-#else
- row_end -= 1;
- dst -= LCD_WIDTH*width + 1;
-#endif
-
- do
- {
- int y, cb, cr, rv, guv, bu, r, g, b;
-
- y = YFAC*(*ysrc++ - 16);
- cb = *usrc++ - 128;
- cr = *vsrc++ - 128;
-
- rv = RVFAC*cr;
- guv = GUFAC*cb + GVFAC*cr;
- bu = BUFAC*cb;
-
- r = y + rv;
- g = y + guv;
- b = y + bu;
-
- if ((unsigned)(r | g | b) > 64*256-1)
- {
- r = clamp(r, 0, 64*256-1);
- g = clamp(g, 0, 64*256-1);
- b = clamp(b, 0, 64*256-1);
- }
-
- *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9);
-
-#if LCD_WIDTH >= LCD_HEIGHT
- dst++;
-#else
- dst += LCD_WIDTH;
-#endif
-
- y = YFAC*(*ysrc++ - 16);
- r = y + rv;
- g = y + guv;
- b = y + bu;
-
- if ((unsigned)(r | g | b) > 64*256-1)
- {
- r = clamp(r, 0, 64*256-1);
- g = clamp(g, 0, 64*256-1);
- b = clamp(b, 0, 64*256-1);
- }
-
- *dst = LCD_RGBPACK_LCD(r >> 9, g >> 8, b >> 9);
-
-#if LCD_WIDTH >= LCD_HEIGHT
- dst++;
-#else
- dst += LCD_WIDTH;
-#endif
- }
- while (dst < row_end);
-
- ysrc += stride;
- usrc += stride >> 1;
- vsrc += stride >> 1;
-
-#if LCD_WIDTH >= LCD_HEIGHT
- row_end += LCD_WIDTH;
- dst += LCD_WIDTH - width;
-#else
- row_end -= 1;
- dst -= LCD_WIDTH*width + 1;
-#endif
- }
- while (--linecounter > 0);
-
-#if LCD_WIDTH >= LCD_HEIGHT
- lcd_update_rect(x, y, width, height);
-#else
- lcd_update_rect(LCD_WIDTH - y - height, x, height, width);
-#endif
-}
-
-/* Fill a rectangle with a gradient. This function draws only the partial
- * gradient. It assumes the original gradient is src_height high and skips
- * the first few rows. This is useful for drawing only the bottom half of
- * a full gradient.
- *
- * height == src_height and row_skip == 0 will draw the full gradient
- *
- * x, y, width, height - dimensions describing the rectangle
- * start_rgb - beginning color of the gradient
- * end_rgb - end color of the gradient
- * src_height - assumed original height (only height rows will be drawn)
- * row_skip - how many rows of the original gradient to skip
- */
-void lcd_gradient_fillrect_part(int x, int y, int width, int height,
- unsigned start_rgb, unsigned end_rgb, int src_height, int row_skip)
-{
- int old_pattern = current_vp->fg_pattern;
- int step_mul, i;
- int x1, x2;
- x1 = x;
- x2 = x + width;
-
- if (height == 0) return;
-
- step_mul = (1 << 16) / src_height;
- int h_r = RGB_UNPACK_RED(start_rgb);
- int h_g = RGB_UNPACK_GREEN(start_rgb);
- int h_b = RGB_UNPACK_BLUE(start_rgb);
- int rstep = (h_r - RGB_UNPACK_RED(end_rgb)) * step_mul;
- int gstep = (h_g - RGB_UNPACK_GREEN(end_rgb)) * step_mul;
- int bstep = (h_b - RGB_UNPACK_BLUE(end_rgb)) * step_mul;
- h_r = (h_r << 16) + (1 << 15);
- h_g = (h_g << 16) + (1 << 15);
- h_b = (h_b << 16) + (1 << 15);
-
- if (row_skip > 0)
- {
- h_r -= rstep * row_skip;
- h_g -= gstep * row_skip;
- h_b -= bstep * row_skip;
- }
-
- for(i = y; i < y + height; i++) {
- current_vp->fg_pattern = LCD_RGBPACK(h_r >> 16, h_g >> 16, h_b >> 16);
- lcd_hline(x1, x2, i);
- h_r -= rstep;
- h_g -= gstep;
- h_b -= bstep;
- }
-
- current_vp->fg_pattern = old_pattern;
-}
-
-/* Fill a rectangle with a gradient. The gradient's color will fade from
- * start_rgb to end_rgb over the height of the rectangle
- *
- * x, y, width, height - dimensions describing the rectangle
- * start_rgb - beginning color of the gradient
- * end_rgb - end color of the gradient
- */
-void lcd_gradient_fillrect(int x, int y, int width, int height,
- unsigned start_rgb, unsigned end_rgb)
-{
- lcd_gradient_fillrect_part(x, y, width, height, start_rgb, end_rgb, height, 0);
-}
diff --git a/firmware/drivers/lcd-16bit.c b/firmware/drivers/lcd-16bit.c
index 4d4166a384..3c99560b6d 100644
--- a/firmware/drivers/lcd-16bit.c
+++ b/firmware/drivers/lcd-16bit.c
@@ -41,8 +41,18 @@
#define ROW_INC LCD_WIDTH
#define COL_INC 1
-#include "lcd-16bit-common.c"
+extern lcd_fastpixelfunc_type* const lcd_fastpixelfuncs_backdrop[];
+extern lcd_fastpixelfunc_type* const lcd_fastpixelfuncs_bgcolor[];
+
+static void ICODE_ATTR lcd_alpha_bitmap_part_mix(const fb_data* image,
+ const unsigned char *src, int src_x,
+ int src_y, int x, int y,
+ int width, int height,
+ int stride_image, int stride_src);
+
+#include "lcd-color-common.c"
#include "lcd-bitmap-common.c"
+#include "lcd-16bit-common.c"
/*** drawing functions ***/
diff --git a/firmware/drivers/lcd-color-common.c b/firmware/drivers/lcd-color-common.c
new file mode 100644
index 0000000000..e171f08465
--- /dev/null
+++ b/firmware/drivers/lcd-color-common.c
@@ -0,0 +1,605 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2005 by Dave Chapman
+ * Copyright (C) 2009 by Karl Kurbjun
+ *
+ * Rockbox driver for 16-bit colour LCDs
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+
+/* to be #included by lcd-16bit*.c */
+
+#if !defined(ROW_INC) || !defined(COL_INC)
+#error ROW_INC or COL_INC not defined
+#endif
+
+enum fill_opt {
+ OPT_NONE = 0,
+ OPT_SET,
+ OPT_COPY
+};
+
+/*** globals ***/
+fb_data lcd_static_framebuffer[LCD_FBHEIGHT][LCD_FBWIDTH]
+ IRAM_LCDFRAMEBUFFER CACHEALIGN_AT_LEAST_ATTR(16);
+fb_data *lcd_framebuffer = &lcd_static_framebuffer[0][0];
+
+static fb_data* lcd_backdrop = NULL;
+static long lcd_backdrop_offset IDATA_ATTR = 0;
+
+static struct viewport default_vp =
+{
+ .x = 0,
+ .y = 0,
+ .width = LCD_WIDTH,
+ .height = LCD_HEIGHT,
+ .font = FONT_SYSFIXED,
+ .drawmode = DRMODE_SOLID,
+ .fg_pattern = LCD_DEFAULT_FG,
+ .bg_pattern = LCD_DEFAULT_BG,
+};
+
+static struct viewport* current_vp IDATA_ATTR = &default_vp;
+
+/* LCD init */
+void lcd_init(void)
+{
+ lcd_clear_display();
+
+ /* Call device specific init */
+ lcd_init_device();
+ scroll_init();
+}
+
+/* Clear the whole display */
+void lcd_clear_display(void)
+{
+ struct viewport* old_vp = current_vp;
+
+ current_vp = &default_vp;
+
+ lcd_clear_viewport();
+
+ current_vp = old_vp;
+}
+
+/*** parameter handling ***/
+
+void lcd_set_drawmode(int mode)
+{
+ current_vp->drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID);
+}
+
+int lcd_get_drawmode(void)
+{
+ return current_vp->drawmode;
+}
+
+void lcd_set_foreground(unsigned color)
+{
+ current_vp->fg_pattern = color;
+}
+
+unsigned lcd_get_foreground(void)
+{
+ return current_vp->fg_pattern;
+}
+
+void lcd_set_background(unsigned color)
+{
+ current_vp->bg_pattern = color;
+}
+
+unsigned lcd_get_background(void)
+{
+ return current_vp->bg_pattern;
+}
+
+void lcd_set_drawinfo(int mode, unsigned fg_color, unsigned bg_color)
+{
+ lcd_set_drawmode(mode);
+ current_vp->fg_pattern = fg_color;
+ current_vp->bg_pattern = bg_color;
+}
+
+int lcd_getwidth(void)
+{
+ return current_vp->width;
+}
+
+int lcd_getheight(void)
+{
+ return current_vp->height;
+}
+
+void lcd_setfont(int newfont)
+{
+ current_vp->font = newfont;
+}
+
+int lcd_getfont(void)
+{
+ return current_vp->font;
+}
+
+int lcd_getstringsize(const unsigned char *str, int *w, int *h)
+{
+ return font_getstringsize(str, w, h, current_vp->font);
+}
+
+void lcd_set_backdrop(fb_data* backdrop)
+{
+ lcd_backdrop = backdrop;
+ if (backdrop)
+ {
+ lcd_backdrop_offset = (long)backdrop - (long)lcd_framebuffer;
+ lcd_fastpixelfuncs = lcd_fastpixelfuncs_backdrop;
+ }
+ else
+ {
+ lcd_backdrop_offset = 0;
+ lcd_fastpixelfuncs = lcd_fastpixelfuncs_bgcolor;
+ }
+}
+
+fb_data* lcd_get_backdrop(void)
+{
+ return lcd_backdrop;
+}
+
+/* Set a single pixel */
+void lcd_drawpixel(int x, int y)
+{
+ if ( ((unsigned)x < (unsigned)current_vp->width)
+ && ((unsigned)y < (unsigned)current_vp->height)
+#if defined(HAVE_VIEWPORT_CLIP)
+ && ((unsigned)x < (unsigned)LCD_WIDTH)
+ && ((unsigned)y < (unsigned)LCD_HEIGHT)
+#endif
+ )
+ lcd_fastpixelfuncs[current_vp->drawmode](FBADDR(current_vp->x+x, current_vp->y+y));
+}
+
+/* Draw a line */
+void lcd_drawline(int x1, int y1, int x2, int y2)
+{
+ int numpixels;
+ int i;
+ int deltax, deltay;
+ int d, dinc1, dinc2;
+ int x, xinc1, xinc2;
+ int y, yinc1, yinc2;
+ lcd_fastpixelfunc_type *pfunc = lcd_fastpixelfuncs[current_vp->drawmode];
+
+ deltay = abs(y2 - y1);
+ if (deltay == 0)
+ {
+ /* DEBUGF("lcd_drawline() called for horizontal line - optimisation.\n"); */
+ lcd_hline(x1, x2, y1);
+ return;
+ }
+ deltax = abs(x2 - x1);
+ if (deltax == 0)
+ {
+ /* DEBUGF("lcd_drawline() called for vertical line - optimisation.\n"); */
+ lcd_vline(x1, y1, y2);
+ return;
+ }
+ xinc2 = 1;
+ yinc2 = 1;
+
+ if (deltax >= deltay)
+ {
+ numpixels = deltax;
+ d = 2 * deltay - deltax;
+ dinc1 = deltay * 2;
+ dinc2 = (deltay - deltax) * 2;
+ xinc1 = 1;
+ yinc1 = 0;
+ }
+ else
+ {
+ numpixels = deltay;
+ d = 2 * deltax - deltay;
+ dinc1 = deltax * 2;
+ dinc2 = (deltax - deltay) * 2;
+ xinc1 = 0;
+ yinc1 = 1;
+ }
+ numpixels++; /* include endpoints */
+
+ if (x1 > x2)
+ {
+ xinc1 = -xinc1;
+ xinc2 = -xinc2;
+ }
+
+ if (y1 > y2)
+ {
+ yinc1 = -yinc1;
+ yinc2 = -yinc2;
+ }
+
+ x = x1;
+ y = y1;
+
+ for (i = 0; i < numpixels; i++)
+ {
+ if ( ((unsigned)x < (unsigned)current_vp->width)
+ && ((unsigned)y < (unsigned)current_vp->height)
+#if defined(HAVE_VIEWPORT_CLIP)
+ && ((unsigned)x < (unsigned)LCD_WIDTH)
+ && ((unsigned)y < (unsigned)LCD_HEIGHT)
+#endif
+ )
+ pfunc(FBADDR(x + current_vp->x, y + current_vp->y));
+
+ if (d < 0)
+ {
+ d += dinc1;
+ x += xinc1;
+ y += yinc1;
+ }
+ else
+ {
+ d += dinc2;
+ x += xinc2;
+ y += yinc2;
+ }
+ }
+}
+
+/* Draw a rectangular box */
+void lcd_drawrect(int x, int y, int width, int height)
+{
+ if ((width <= 0) || (height <= 0))
+ return;
+
+ int x2 = x + width - 1;
+ int y2 = y + height - 1;
+
+ lcd_vline(x, y, y2);
+ lcd_vline(x2, y, y2);
+ lcd_hline(x, x2, y);
+ lcd_hline(x, x2, y2);
+}
+
+
+/* Draw a full native bitmap */
+void lcd_bitmap(const fb_data *src, int x, int y, int width, int height)
+{
+ lcd_bitmap_part(src, 0, 0, STRIDE(SCREEN_MAIN, width, height), x, y, width, height);
+}
+
+/* Draw a full native bitmap with a transparent color */
+void lcd_bitmap_transparent(const fb_data *src, int x, int y,
+ int width, int height)
+{
+ lcd_bitmap_transparent_part(src, 0, 0,
+ STRIDE(SCREEN_MAIN, width, height), x, y, width, height);
+}
+
+/* draw alpha bitmap for anti-alias font */
+void ICODE_ATTR lcd_alpha_bitmap_part(const unsigned char *src, int src_x,
+ int src_y, int stride, int x, int y,
+ int width, int height)
+{
+ lcd_alpha_bitmap_part_mix(NULL, src, src_x, src_y, x, y, width, height, 0, stride);
+}
+
+/* Draw a partial bitmap (mono or native) including alpha channel */
+void ICODE_ATTR lcd_bmp_part(const struct bitmap* bm, int src_x, int src_y,
+ int x, int y, int width, int height)
+{
+ int bitmap_stride = STRIDE_MAIN(bm->width, bm->height);
+ if (bm->format == FORMAT_MONO)
+ lcd_mono_bitmap_part(bm->data, src_x, src_y, bitmap_stride, x, y, width, height);
+ else if (bm->alpha_offset > 0)
+ lcd_alpha_bitmap_part_mix((fb_data*)bm->data, bm->data+bm->alpha_offset,
+ src_x, src_y, x, y, width, height,
+ bitmap_stride, ALIGN_UP(bm->width, 2));
+ else
+ lcd_bitmap_transparent_part((fb_data*)bm->data,
+ src_x, src_y, bitmap_stride, x, y, width, height);
+}
+
+/* Draw a native bitmap with alpha channel */
+void ICODE_ATTR lcd_bmp(const struct bitmap *bmp, int x, int y)
+{
+ lcd_bmp_part(bmp, 0, 0, x, y, bmp->width, bmp->height);
+}
+
+/**
+ * |R| |1.000000 -0.000001 1.402000| |Y'|
+ * |G| = |1.000000 -0.334136 -0.714136| |Pb|
+ * |B| |1.000000 1.772000 0.000000| |Pr|
+ * Scaled, normalized, rounded and tweaked to yield RGB 565:
+ * |R| |74 0 101| |Y' - 16| >> 9
+ * |G| = |74 -24 -51| |Cb - 128| >> 8
+ * |B| |74 128 0| |Cr - 128| >> 9
+ */
+#define YFAC (74)
+#define RVFAC (101)
+#define GUFAC (-24)
+#define GVFAC (-51)
+#define BUFAC (128)
+
+static inline int clamp(int val, int min, int max)
+{
+ if (val < min)
+ val = min;
+ else if (val > max)
+ val = max;
+ return val;
+}
+
+#ifndef _WIN32
+/*
+ * weak attribute doesn't work for win32 as of gcc 4.6.2 and binutils 2.21.52
+ * When building win32 simulators, we won't be using an optimized version of
+ * lcd_blit_yuv(), so just don't use the weak attribute.
+ */
+__attribute__((weak))
+#endif
+void lcd_yuv_set_options(unsigned options)
+{
+ (void)options;
+}
+
+/* Draw a partial YUV colour bitmap */
+#ifndef _WIN32
+__attribute__((weak))
+#endif
+void lcd_blit_yuv(unsigned char * const src[3],
+ int src_x, int src_y, int stride,
+ int x, int y, int width, int height)
+{
+ const unsigned char *ysrc, *usrc, *vsrc;
+ int linecounter;
+ fb_data *dst, *row_end;
+ long z;
+
+ /* width and height must be >= 2 and an even number */
+ width &= ~1;
+ linecounter = height >> 1;
+
+#if LCD_WIDTH >= LCD_HEIGHT
+ dst = FBADDR(x, y);
+ row_end = dst + width;
+#else
+ dst = FBADDR(LCD_WIDTH - y - 1, x);
+ row_end = dst + LCD_WIDTH * width;
+#endif
+
+ z = stride * src_y;
+ ysrc = src[0] + z + src_x;
+ usrc = src[1] + (z >> 2) + (src_x >> 1);
+ vsrc = src[2] + (usrc - src[1]);
+
+ /* stride => amount to jump from end of last row to start of next */
+ stride -= width;
+
+ /* upsampling, YUV->RGB conversion and reduction to RGB565 in one go */
+
+ do
+ {
+ do
+ {
+ int y, cb, cr, rv, guv, bu, r, g, b;
+
+ y = YFAC*(*ysrc++ - 16);
+ cb = *usrc++ - 128;
+ cr = *vsrc++ - 128;
+
+ rv = RVFAC*cr;
+ guv = GUFAC*cb + GVFAC*cr;
+ bu = BUFAC*cb;
+
+ r = y + rv;
+ g = y + guv;
+ b = y + bu;
+
+ if ((unsigned)(r | g | b) > 64*256-1)
+ {
+ r = clamp(r, 0, 64*256-1);
+ g = clamp(g, 0, 64*256-1);
+ b = clamp(b, 0, 64*256-1);
+ }
+
+ *dst = FB_RGBPACK_LCD(r >> 9, g >> 8, b >> 9);
+
+#if LCD_WIDTH >= LCD_HEIGHT
+ dst++;
+#else
+ dst += LCD_WIDTH;
+#endif
+
+ y = YFAC*(*ysrc++ - 16);
+ r = y + rv;
+ g = y + guv;
+ b = y + bu;
+
+ if ((unsigned)(r | g | b) > 64*256-1)
+ {
+ r = clamp(r, 0, 64*256-1);
+ g = clamp(g, 0, 64*256-1);
+ b = clamp(b, 0, 64*256-1);
+ }
+
+ *dst = FB_RGBPACK_LCD(r >> 9, g >> 8, b >> 9);
+
+#if LCD_WIDTH >= LCD_HEIGHT
+ dst++;
+#else
+ dst += LCD_WIDTH;
+#endif
+ }
+ while (dst < row_end);
+
+ ysrc += stride;
+ usrc -= width >> 1;
+ vsrc -= width >> 1;
+
+#if LCD_WIDTH >= LCD_HEIGHT
+ row_end += LCD_WIDTH;
+ dst += LCD_WIDTH - width;
+#else
+ row_end -= 1;
+ dst -= LCD_WIDTH*width + 1;
+#endif
+
+ do
+ {
+ int y, cb, cr, rv, guv, bu, r, g, b;
+
+ y = YFAC*(*ysrc++ - 16);
+ cb = *usrc++ - 128;
+ cr = *vsrc++ - 128;
+
+ rv = RVFAC*cr;
+ guv = GUFAC*cb + GVFAC*cr;
+ bu = BUFAC*cb;
+
+ r = y + rv;
+ g = y + guv;
+ b = y + bu;
+
+ if ((unsigned)(r | g | b) > 64*256-1)
+ {
+ r = clamp(r, 0, 64*256-1);
+ g = clamp(g, 0, 64*256-1);
+ b = clamp(b, 0, 64*256-1);
+ }
+
+ *dst = FB_RGBPACK_LCD(r >> 9, g >> 8, b >> 9);
+
+#if LCD_WIDTH >= LCD_HEIGHT
+ dst++;
+#else
+ dst += LCD_WIDTH;
+#endif
+
+ y = YFAC*(*ysrc++ - 16);
+ r = y + rv;
+ g = y + guv;
+ b = y + bu;
+
+ if ((unsigned)(r | g | b) > 64*256-1)
+ {
+ r = clamp(r, 0, 64*256-1);
+ g = clamp(g, 0, 64*256-1);
+ b = clamp(b, 0, 64*256-1);
+ }
+
+ *dst = FB_RGBPACK_LCD(r >> 9, g >> 8, b >> 9);
+
+#if LCD_WIDTH >= LCD_HEIGHT
+ dst++;
+#else
+ dst += LCD_WIDTH;
+#endif
+ }
+ while (dst < row_end);
+
+ ysrc += stride;
+ usrc += stride >> 1;
+ vsrc += stride >> 1;
+
+#if LCD_WIDTH >= LCD_HEIGHT
+ row_end += LCD_WIDTH;
+ dst += LCD_WIDTH - width;
+#else
+ row_end -= 1;
+ dst -= LCD_WIDTH*width + 1;
+#endif
+ }
+ while (--linecounter > 0);
+
+#if LCD_WIDTH >= LCD_HEIGHT
+ lcd_update_rect(x, y, width, height);
+#else
+ lcd_update_rect(LCD_WIDTH - y - height, x, height, width);
+#endif
+}
+
+/* Fill a rectangle with a gradient. This function draws only the partial
+ * gradient. It assumes the original gradient is src_height high and skips
+ * the first few rows. This is useful for drawing only the bottom half of
+ * a full gradient.
+ *
+ * height == src_height and row_skip == 0 will draw the full gradient
+ *
+ * x, y, width, height - dimensions describing the rectangle
+ * start_rgb - beginning color of the gradient
+ * end_rgb - end color of the gradient
+ * src_height - assumed original height (only height rows will be drawn)
+ * row_skip - how many rows of the original gradient to skip
+ */
+void lcd_gradient_fillrect_part(int x, int y, int width, int height,
+ unsigned start_rgb, unsigned end_rgb, int src_height, int row_skip)
+{
+ int old_pattern = current_vp->fg_pattern;
+ int step_mul, i;
+ int x1, x2;
+ x1 = x;
+ x2 = x + width;
+
+ if (height == 0) return;
+
+ step_mul = (1 << 16) / src_height;
+ int h_r = RGB_UNPACK_RED(start_rgb);
+ int h_g = RGB_UNPACK_GREEN(start_rgb);
+ int h_b = RGB_UNPACK_BLUE(start_rgb);
+ int rstep = (h_r - RGB_UNPACK_RED(end_rgb)) * step_mul;
+ int gstep = (h_g - RGB_UNPACK_GREEN(end_rgb)) * step_mul;
+ int bstep = (h_b - RGB_UNPACK_BLUE(end_rgb)) * step_mul;
+ h_r = (h_r << 16) + (1 << 15);
+ h_g = (h_g << 16) + (1 << 15);
+ h_b = (h_b << 16) + (1 << 15);
+
+ if (row_skip > 0)
+ {
+ h_r -= rstep * row_skip;
+ h_g -= gstep * row_skip;
+ h_b -= bstep * row_skip;
+ }
+
+ for(i = y; i < y + height; i++) {
+ current_vp->fg_pattern = LCD_RGBPACK(h_r >> 16, h_g >> 16, h_b >> 16);
+ lcd_hline(x1, x2, i);
+ h_r -= rstep;
+ h_g -= gstep;
+ h_b -= bstep;
+ }
+
+ current_vp->fg_pattern = old_pattern;
+}
+
+/* Fill a rectangle with a gradient. The gradient's color will fade from
+ * start_rgb to end_rgb over the height of the rectangle
+ *
+ * x, y, width, height - dimensions describing the rectangle
+ * start_rgb - beginning color of the gradient
+ * end_rgb - end color of the gradient
+ */
+void lcd_gradient_fillrect(int x, int y, int width, int height,
+ unsigned start_rgb, unsigned end_rgb)
+{
+ lcd_gradient_fillrect_part(x, y, width, height, start_rgb, end_rgb, height, 0);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 08:03:07 +0000