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Collect some of the memory frame LCD C code.
For this commit: Sansa e200v1, Gigabeat F, Gigabeat S and Mini2440 are changed over. Quite a number of other targets probably can be as well. General LCD code is moved out of the target drivers into drivers/lcd-memframe.c. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31311 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis
parent
f53b8ff959
commit
62facd1ff2
9 changed files with 246 additions and 443 deletions
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@ -22,17 +22,15 @@
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <sys/types.h> /* off_t */
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#include <string.h>
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#include "cpu.h"
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#include "config.h"
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#include "system.h"
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#include "backlight-target.h"
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#include "lcd.h"
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#include "lcd-target.h"
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extern void lcd_set_active(bool active);
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/* Power and display status */
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static bool power_on = false; /* Is the power turned on? */
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static bool display_on SHAREDBSS_ATTR = false; /* Is the display turned on? */
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static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
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/* Reverse Flag */
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#define R_DISP_CONTROL_NORMAL 0x0004
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@ -112,7 +110,7 @@ static unsigned short r_drv_output_control = R_DRV_OUTPUT_CONTROL_NORMAL;
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/* We don't know how to receive a DMA finished signal from the LCD controller.
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* To avoid problems with flickering, we double-buffer the framebuffer.
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* Align as in lcd-16bit.c and not cached. */
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static fb_data lcd_driver_framebuffer[LCD_FBHEIGHT][LCD_FBWIDTH]
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fb_data lcd_driver_framebuffer[LCD_FBHEIGHT][LCD_FBWIDTH]
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__attribute__((aligned(16))) NOCACHEBSS_ATTR;
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#ifdef BOOTLOADER
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@ -310,21 +308,16 @@ static void lcd_display_on(void)
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lcd_send_msg(0x70, R_RAM_WRITE_DATA);
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/* tell that we're on now */
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display_on = true;
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lcd_set_active(true);
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}
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#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
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bool lcd_active(void)
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{
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return display_on;
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}
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/* Turn off visible display operations */
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static void lcd_display_off(void)
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{
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/* block drawing operations and changing of first */
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display_on = false;
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lcd_set_active(false);
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/* NO2-0=01, SDT1-0=00, EQ1-0=00, DIV1-0=00, RTN3-0=0000 */
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lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x4000);
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@ -428,7 +421,7 @@ void lcd_init_device(void)
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LCD_FB_BASE_REG = (long)lcd_driver_framebuffer;
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power_on = true;
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display_on = true;
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lcd_set_active(true);
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lcd_set_invert_display(false);
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lcd_set_flip(false);
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@ -440,7 +433,7 @@ void lcd_init_device(void)
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#if defined(HAVE_LCD_ENABLE)
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void lcd_enable(bool on)
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{
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if (on == display_on)
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if (on == lcd_active())
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return;
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if (on)
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@ -471,7 +464,7 @@ void lcd_sleep(void)
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if (power_on)
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{
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/* Turn off display */
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if (display_on)
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if (lcd_active())
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lcd_display_off();
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power_on = false;
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@ -483,59 +476,6 @@ void lcd_sleep(void)
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}
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#endif
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/* Copies a rectangle from one framebuffer to another. Can be used in
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single transfer mode with width = num pixels, and height = 1 which
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allows a full-width rectangle to be copied more efficiently. */
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extern void lcd_copy_buffer_rect(fb_data *dst, const fb_data *src,
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int width, int height);
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void lcd_update_rect(int x, int y, int width, int height)
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{
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fb_data *dst, *src;
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if (!display_on)
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return;
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if (x + width > LCD_WIDTH)
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width = LCD_WIDTH - x; /* Clip right */
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if (x < 0)
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width += x, x = 0; /* Clip left */
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if (width <= 0)
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return; /* nothing left to do */
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if (y + height > LCD_HEIGHT)
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height = LCD_HEIGHT - y; /* Clip bottom */
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if (y < 0)
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height += y, y = 0; /* Clip top */
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if (height <= 0)
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return; /* nothing left to do */
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dst = &lcd_driver_framebuffer[y][x];
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src = &lcd_framebuffer[y][x];
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/* Copy part of the Rockbox framebuffer to the second framebuffer */
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if (width < LCD_WIDTH)
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{
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/* Not full width - do line-by-line */
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lcd_copy_buffer_rect(dst, src, width, height);
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}
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else
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{
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/* Full width - copy as one line */
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lcd_copy_buffer_rect(dst, src, LCD_WIDTH*height, 1);
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}
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}
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void lcd_update(void)
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{
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if (!display_on)
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return;
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/* Copy the Rockbox framebuffer to the second framebuffer */
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lcd_copy_buffer_rect(&lcd_driver_framebuffer[0][0],
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&lcd_framebuffer[0][0], LCD_WIDTH*LCD_HEIGHT, 1);
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}
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/*** hardware configuration ***/
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void lcd_set_contrast(int val)
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@ -558,7 +498,7 @@ void lcd_set_invert_display(bool yesno)
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r_disp_control_rev = yesno ? R_DISP_CONTROL_REV :
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R_DISP_CONTROL_NORMAL;
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if (display_on)
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if (lcd_active())
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{
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/* PT1-0=00, VLE2-1=00, SPT=0, IB6(??)=1, GON=1, CL=0,
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DTE=1, REV=x, D1-0=11 */
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@ -602,73 +542,3 @@ void lcd_set_flip(bool yesno)
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LCD_REG_6 |= 1; /* Restart DMA */
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}
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}
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/* Blitting functions */
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void lcd_yuv_set_options(unsigned options)
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{
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lcd_yuv_options = options;
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}
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/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
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extern void lcd_write_yuv420_lines(fb_data *dst,
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unsigned char const * const src[3],
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int width,
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int stride);
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extern void lcd_write_yuv420_lines_odither(fb_data *dst,
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unsigned char const * const src[3],
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int width,
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int stride,
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int x_screen, /* To align dither pattern */
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int y_screen);
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/* Performance function to blit a YUV bitmap directly to the LCD */
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/* For the e200 - show it rotated */
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/* So the LCD_WIDTH is now the height */
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void lcd_blit_yuv(unsigned char * const src[3],
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int src_x, int src_y, int stride,
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int x, int y, int width, int height)
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{
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unsigned char const * yuv_src[3];
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off_t z;
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if (!display_on)
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return;
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/* Sorry, but width and height must be >= 2 or else */
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width &= ~1;
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height >>= 1;
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y = LCD_WIDTH - 1 - y;
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fb_data *dst = &lcd_driver_framebuffer[x][y];
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z = stride*src_y;
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yuv_src[0] = src[0] + z + src_x;
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yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1);
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yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
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if (lcd_yuv_options & LCD_YUV_DITHER)
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{
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do
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{
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lcd_write_yuv420_lines_odither(dst, yuv_src, width, stride, y, x);
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yuv_src[0] += stride << 1; /* Skip down two luma lines */
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yuv_src[1] += stride >> 1; /* Skip down one chroma line */
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yuv_src[2] += stride >> 1;
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dst -= 2;
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y -= 2;
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}
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while (--height > 0);
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}
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else
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{
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do
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{
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lcd_write_yuv420_lines(dst, yuv_src, width, stride);
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yuv_src[0] += stride << 1; /* Skip down two luma lines */
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yuv_src[1] += stride >> 1; /* Skip down one chroma line */
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yuv_src[2] += stride >> 1;
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dst -= 2;
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}
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while (--height > 0);
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}
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}
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28
firmware/target/arm/sandisk/sansa-e200/lcd-target.h
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28
firmware/target/arm/sandisk/sansa-e200/lcd-target.h
Normal file
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@ -0,0 +1,28 @@
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 Michael Sevakis
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef LCD_TARGET_H
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#define LCD_TARGET_H
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extern fb_data lcd_driver_framebuffer[LCD_FBHEIGHT][LCD_FBWIDTH];
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#define LCD_FRAMEBUF_ADDR(col, row) (&lcd_driver_framebuffer[row][col])
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#endif /* LCD_TARGET_H */
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