mangavalk/lcdproc
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glcd driver updates:

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1. Remove connection type header files and put prototypes locally and in
   glcd-drivers.h. Don't fall into the pitfall of too many header files again.
2. Create a separate frame buffer structure (this allows easier re-use of
   the frame buffer functions).
3. Add a function to retrieve pixel values from framebuffer.
4. Add the 'serdisplib' connection type.
5. Support display width that are not a multiple of 8 (e.g. 122x32).
This commit is contained in:
mmdolze
2011-11-22 23:14:45 +00:00
parent 85241c253d
commit eac9d590a8
12 changed files with 348 additions and 83 deletions
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server/drivers/glcd-png.c
+9 -6
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@@ -27,7 +27,10 @@
#include "lcd.h"
#include "report.h"
#include "glcd-low.h"
#include "glcd-png.h"
/* Prototypes */
void glcd_png_blit(PrivateData *p);
void glcd_png_close(PrivateData *p);
/** Private data for the PNG connection type */
typedef struct glcd_png_data {
@@ -89,7 +92,7 @@ glcd_png_blit(PrivateData *p)
png_bytep row_pointer;
/* Check if framebufer has changed. If not there's nothing to do */
if (memcmp(p->framebuf, ct_data->backingstore, FB_BYTES_TOTAL) == 0)
if (memcmp(p->framebuf.data, ct_data->backingstore, FB_BYTES_TOTAL) == 0)
return;
snprintf(filename, sizeof(filename), "/tmp/lcdproc%06d.png", num++);
@@ -120,7 +123,7 @@ glcd_png_blit(PrivateData *p)
png_init_io(png_ptr, fp);
png_set_IHDR(png_ptr, info_ptr, p->px_width, p->px_height,
png_set_IHDR(png_ptr, info_ptr, p->framebuf.px_width, p->framebuf.px_height,
1, PNG_COLOR_TYPE_GRAY, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
png_set_invert_mono(png_ptr);
@@ -128,8 +131,8 @@ glcd_png_blit(PrivateData *p)
png_write_info(png_ptr, info_ptr);
/* Write the image row by row */
row_pointer = p->framebuf;
for (row = 0; row < p->px_height; row++) {
row_pointer = p->framebuf.data;
for (row = 0; row < p->framebuf.px_height; row++) {
png_write_row(png_ptr, row_pointer);
row_pointer += BYTES_PER_LINE;
}
@@ -139,7 +142,7 @@ glcd_png_blit(PrivateData *p)
fp = NULL;
png_destroy_write_struct(&png_ptr, &info_ptr);
memcpy(ct_data->backingstore, p->framebuf, FB_BYTES_TOTAL);
memcpy(ct_data->backingstore, p->framebuf.data, FB_BYTES_TOTAL);
return;