Nyaaori/rockbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
rockbox/firmware/target/hosted/sdl/lcd-bitmap.c
Thomas Martitz 3d0cee8abb - Move uisimulator/sdl/*.[ch] into the target tree, under firmware/target/hosted/sdl, uisdl.c is split up across button-sdl.c and system-sdl.c. 
- Refactor the program startup. main() is now in main.c like on target, and the implicit application thread will now act as our main thread (previously a separate one was created for this in thread initialization).

This is part of Rockbox as an application and is the first step to make an application port from the uisimulator. In a further step the sim bits from the sdl build will be separated out.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26065 a1c6a512-1295-4272-9138-f99709370657
2010-05-15 21:02:47 +00:00

416 lines
12 KiB
C
Raw Blame History

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 Dan Everton
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "debug.h"
#include "sim-ui-defines.h"
#include "system.h"
#include "lcd-sdl.h"
#include "screendump.h"
SDL_Surface* lcd_surface;
#if LCD_DEPTH <= 8
#ifdef HAVE_BACKLIGHT
SDL_Color lcd_bl_color_dark = {RED_CMP(LCD_BL_DARKCOLOR),
GREEN_CMP(LCD_BL_DARKCOLOR),
BLUE_CMP(LCD_BL_DARKCOLOR), 0};
SDL_Color lcd_bl_color_bright = {RED_CMP(LCD_BL_BRIGHTCOLOR),
GREEN_CMP(LCD_BL_BRIGHTCOLOR),
BLUE_CMP(LCD_BL_BRIGHTCOLOR), 0};
#ifdef HAVE_LCD_SPLIT
SDL_Color lcd_bl_color2_dark = {RED_CMP(LCD_BL_DARKCOLOR_2),
GREEN_CMP(LCD_BL_DARKCOLOR_2),
BLUE_CMP(LCD_BL_DARKCOLOR_2), 0};
SDL_Color lcd_bl_color2_bright = {RED_CMP(LCD_BL_BRIGHTCOLOR_2),
GREEN_CMP(LCD_BL_BRIGHTCOLOR_2),
BLUE_CMP(LCD_BL_BRIGHTCOLOR_2), 0};
#endif
#endif /* HAVE_BACKLIGHT */
SDL_Color lcd_color_dark = {RED_CMP(LCD_DARKCOLOR),
GREEN_CMP(LCD_DARKCOLOR),
BLUE_CMP(LCD_DARKCOLOR), 0};
SDL_Color lcd_color_bright = {RED_CMP(LCD_BRIGHTCOLOR),
GREEN_CMP(LCD_BRIGHTCOLOR),
BLUE_CMP(LCD_BRIGHTCOLOR), 0};
#ifdef HAVE_LCD_SPLIT
SDL_Color lcd_color2_dark = {RED_CMP(LCD_DARKCOLOR_2),
GREEN_CMP(LCD_DARKCOLOR_2),
BLUE_CMP(LCD_DARKCOLOR_2), 0};
SDL_Color lcd_color2_bright = {RED_CMP(LCD_BRIGHTCOLOR_2),
GREEN_CMP(LCD_BRIGHTCOLOR_2),
BLUE_CMP(LCD_BRIGHTCOLOR_2), 0};
#endif
#ifdef HAVE_LCD_SPLIT
#define NUM_SHADES 128
#else
#define NUM_SHADES 129
#endif
#else /* LCD_DEPTH > 8 */
#ifdef HAVE_TRANSFLECTIVE_LCD
#define BACKLIGHT_OFF_ALPHA 85 /* 1/3 brightness */
#else
#define BACKLIGHT_OFF_ALPHA 0 /* pitch black */
#endif
#endif /* LCD_DEPTH */
#if LCD_DEPTH < 8
unsigned long (*lcd_ex_getpixel)(int, int) = NULL;
#endif /* LCD_DEPTH < 8 */
#if LCD_DEPTH == 2
/* Only defined for positive, non-split LCD for now */
static const unsigned char colorindex[4] = {128, 85, 43, 0};
#endif
static unsigned long get_lcd_pixel(int x, int y)
{
#if LCD_DEPTH == 1
#ifdef HAVE_NEGATIVE_LCD
return (lcd_framebuffer[y/8][x] & (1 << (y & 7))) ? (NUM_SHADES-1) : 0;
#else
return (lcd_framebuffer[y/8][x] & (1 << (y & 7))) ? 0 : (NUM_SHADES-1);
#endif
#elif LCD_DEPTH == 2
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
return colorindex[(lcd_framebuffer[y][x/4] >> (2 * (~x & 3))) & 3];
#elif LCD_PIXELFORMAT == VERTICAL_PACKING
return colorindex[(lcd_framebuffer[y/4][x] >> (2 * (y & 3))) & 3];
#elif LCD_PIXELFORMAT == VERTICAL_INTERLEAVED
unsigned bits = (lcd_framebuffer[y/8][x] >> (y & 7)) & 0x0101;
return colorindex[(bits | (bits >> 7)) & 3];
#endif
#elif LCD_DEPTH == 16
#if LCD_PIXELFORMAT == RGB565SWAPPED
unsigned bits = lcd_framebuffer[y][x];
return (bits >> 8) | (bits << 8);
#else
#if defined(LCD_STRIDEFORMAT) && LCD_STRIDEFORMAT == VERTICAL_STRIDE
return *(&lcd_framebuffer[0][0]+LCD_HEIGHT*x+y);
#else
return lcd_framebuffer[y][x];
#endif
#endif
#endif
}
void lcd_update(void)
{
/* update a full screen rect */
lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
}
void lcd_update_rect(int x_start, int y_start, int width, int height)
{
sdl_update_rect(lcd_surface, x_start, y_start, width, height,
LCD_WIDTH, LCD_HEIGHT, get_lcd_pixel);
sdl_gui_update(lcd_surface, x_start, y_start, width,
height + LCD_SPLIT_LINES, SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
background ? UI_LCD_POSX : 0, background? UI_LCD_POSY : 0);
}
#ifdef HAVE_BACKLIGHT
void sim_backlight(int value)
{
#if LCD_DEPTH <= 8
if (value > 0) {
sdl_set_gradient(lcd_surface, &lcd_bl_color_dark,
&lcd_bl_color_bright, 0, NUM_SHADES);
#ifdef HAVE_LCD_SPLIT
sdl_set_gradient(lcd_surface, &lcd_bl_color2_dark,
&lcd_bl_color2_bright, NUM_SHADES, NUM_SHADES);
#endif
} else {
sdl_set_gradient(lcd_surface, &lcd_color_dark,
&lcd_color_bright, 0, NUM_SHADES);
#ifdef HAVE_LCD_SPLIT
sdl_set_gradient(lcd_surface, &lcd_color2_dark,
&lcd_color2_bright, NUM_SHADES, NUM_SHADES);
#endif
}
#else /* LCD_DEPTH > 8 */
SDL_SetAlpha(lcd_surface, SDL_SRCALPHA, (value * 255) / 100);
#endif /* LCD_DEPTH */
sdl_gui_update(lcd_surface, 0, 0, SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
background ? UI_LCD_POSX : 0, background? UI_LCD_POSY : 0);
}
#endif /* HAVE_BACKLIGHT */
/* initialise simulator lcd driver */
void sim_lcd_init(void)
{
#if LCD_DEPTH == 16
lcd_surface = SDL_CreateRGBSurface(SDL_SWSURFACE,
SIM_LCD_WIDTH * display_zoom,
SIM_LCD_HEIGHT * display_zoom,
LCD_DEPTH, 0, 0, 0, 0);
#elif LCD_DEPTH <= 8
lcd_surface = SDL_CreateRGBSurface(SDL_SWSURFACE,
SIM_LCD_WIDTH * display_zoom,
SIM_LCD_HEIGHT * display_zoom,
8, 0, 0, 0, 0);
#ifdef HAVE_BACKLIGHT
sdl_set_gradient(lcd_surface, &lcd_bl_color_dark,
&lcd_bl_color_bright, 0, NUM_SHADES);
#ifdef HAVE_LCD_SPLIT
sdl_set_gradient(lcd_surface, &lcd_bl_color2_dark,
&lcd_bl_color2_bright, NUM_SHADES, NUM_SHADES);
#endif
#else /* !HAVE_BACKLIGHT */
sdl_set_gradient(lcd_surface, &lcd_color_dark,
&lcd_color_bright, 0, NUM_SHADES);
#ifdef HAVE_LCD_SPLIT
sdl_set_gradient(lcd_surface, &lcd_color2_dark,
&lcd_color2_bright, NUM_SHADES, NUM_SHADES);
#endif
#endif /* !HAVE_BACKLIGHT */
#endif /* LCD_DEPTH */
}
#if LCD_DEPTH < 8
void sim_lcd_ex_init(unsigned long (*getpixel)(int, int))
{
lcd_ex_getpixel = getpixel;
}
void sim_lcd_ex_update_rect(int x_start, int y_start, int width, int height)
{
if (lcd_ex_getpixel) {
sdl_update_rect(lcd_surface, x_start, y_start, width, height,
LCD_WIDTH, LCD_HEIGHT, lcd_ex_getpixel);
sdl_gui_update(lcd_surface, x_start, y_start, width,
height + LCD_SPLIT_LINES, SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
background ? UI_LCD_POSX : 0,
background ? UI_LCD_POSY : 0);
}
}
#endif
#ifdef HAVE_LCD_COLOR
/**
* |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;
}
void lcd_yuv_set_options(unsigned options)
{
(void)options;
}
/* Draw a partial YUV colour bitmap - similiar behavior to lcd_blit_yuv
in the core */
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 = &lcd_framebuffer[y][x];
row_end = dst + width;
#else
dst = &lcd_framebuffer[x][LCD_WIDTH - y - 1];
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
}
#endif /* HAVE_LCD_COLOR */
Reference in a new issue View git blame Copy permalink