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@ -19,13 +19,131 @@
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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//#include <stdio.h>
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#include <stdlib.h>
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#include "einkfb.h"
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#ifdef EMULATE_READER
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int emu_w = EMULATE_READER_W;
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int emu_h = EMULATE_READER_H;
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#else
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static void (*einkUpdateFunc)(FBInfo *fb, lua_State *L) = NULL;
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inline void fbInvert4BppTo8Bpp(FBInfo *fb) {
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int i = 0, j = 0, h = 0, w = 0, pitch = 0, fb_pitch = 0;
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uint8_t *shadow_buf = NULL, *fb_buf = NULL;
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shadow_buf = fb->buf->data;
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fb_buf = fb->real_buf->data;
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h = fb->buf->h;
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w = fb->buf->w;
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pitch = fb->buf->pitch;
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fb_pitch = fb->real_buf->pitch;
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/* copy bitmap from 4bpp shadow blitbuffer to framebuffer */
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for (i = (h-1); i > 0; i--) {
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for (j = (w-1)/2; j > 0; j--) {
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fb_buf[i*fb_pitch + j*2] = shadow_buf[i*pitch + j];
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fb_buf[i*fb_pitch + j*2] &= 0xF0;
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fb_buf[i*fb_pitch + j*2] |= shadow_buf[i*pitch + j]>>4 & 0x0F;
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fb_buf[i*fb_pitch + j*2 + 1] = shadow_buf[i*pitch + j];
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fb_buf[i*fb_pitch + j*2 + 1] &= 0x0F;
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fb_buf[i*fb_pitch + j*2 + 1] |= shadow_buf[i*pitch + j]<<4 & 0xF0;
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}
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}
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}
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inline void fb4BppTo8Bpp(FBInfo *fb) {
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int i = 0, j = 0, h = 0, w = 0, pitch = 0, fb_pitch = 0;
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uint8_t *shadow_buf = NULL, *fb_buf = NULL;
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shadow_buf = fb->buf->data;
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fb_buf = fb->real_buf->data;
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/* h is 1024 for PaperWhite */
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h = fb->buf->h;
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/* w is 758 for PaperWhite */
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w = fb->buf->w;
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/* pitch is 384 for shadow buffer */
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pitch = fb->buf->pitch;
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/* pitch is 768 for PaperWhite */
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fb_pitch = fb->real_buf->pitch;
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/* copy bitmap from 4bpp shadow blitbuffer to framebuffer */
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for (i = (h-1); i > 0; i--) {
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for (j = (w-1)/2; j > 0; j--) {
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fb_buf[i*fb_pitch + j*2] = shadow_buf[i*pitch + j];
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fb_buf[i*fb_pitch + j*2] &= 0xF0;
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fb_buf[i*fb_pitch + j*2] |= shadow_buf[i*pitch + j]>>4 & 0x0F;
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fb_buf[i*fb_pitch + j*2] = ~fb_buf[i*fb_pitch + j*2];
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fb_buf[i*fb_pitch + j*2 + 1] = shadow_buf[i*pitch + j];
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fb_buf[i*fb_pitch + j*2 + 1] &= 0x0F;
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fb_buf[i*fb_pitch + j*2 + 1] |= shadow_buf[i*pitch + j]<<4 & 0xF0;
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fb_buf[i*fb_pitch + j*2 + 1] = ~fb_buf[i*fb_pitch + j*2 + 1];
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}
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}
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}
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inline void fillUpdateAreaT(update_area_t *myarea, FBInfo *fb, lua_State *L) {
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int fxtype = luaL_optint(L, 2, 0);
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myarea->x1 = luaL_optint(L, 3, 0);
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myarea->y1 = luaL_optint(L, 4, 0);
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myarea->x2 = myarea->x1 + luaL_optint(L, 5, fb->vinfo.xres);
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myarea->y2 = myarea->y1 + luaL_optint(L, 6, fb->vinfo.yres);
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myarea->buffer = NULL;
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myarea->which_fx = fxtype ? fx_update_partial : fx_update_full;
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}
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inline void fillMxcfbUpdateData(mxcfb_update_data *myarea, FBInfo *fb, lua_State *L) {
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myarea->update_region.top = luaL_optint(L, 3, 0);
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myarea->update_region.left = luaL_optint(L, 4, 0);
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myarea->update_region.width = luaL_optint(L, 5, fb->vinfo.xres);
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myarea->update_region.height = luaL_optint(L, 6, fb->vinfo.yres);
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myarea->waveform_mode = 257;
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myarea->update_mode = 0;
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myarea->update_marker = 1;
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myarea->hist_bw_waveform_mode = 0;
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myarea->hist_gray_waveform_mode = 0;
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myarea->temp = 0x1001;
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myarea->flags = 0;
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/*myarea->alt_buffer_data.virt_addr = NULL;*/
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myarea->alt_buffer_data.phys_addr = NULL;
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myarea->alt_buffer_data.width = 0;
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myarea->alt_buffer_data.height = 0;
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myarea->alt_buffer_data.alt_update_region.top = 0;
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myarea->alt_buffer_data.alt_update_region.left = 0;
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myarea->alt_buffer_data.alt_update_region.width = 0;
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myarea->alt_buffer_data.alt_update_region.height = 0;
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}
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void kindle3einkUpdate(FBInfo *fb, lua_State *L) {
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update_area_t myarea;
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fillUpdateAreaT(&myarea, fb, L);
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ioctl(fb->fd, FBIO_EINK_UPDATE_DISPLAY_AREA, &myarea);
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}
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void kindle4einkUpdate(FBInfo *fb, lua_State *L) {
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update_area_t myarea;
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fbInvert4BppTo8Bpp(fb);
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fillUpdateAreaT(&myarea, fb, L);
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ioctl(fb->fd, FBIO_EINK_UPDATE_DISPLAY_AREA, &myarea);
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}
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/* for kindle firmware with version >= 5.1, 5.0 is not supported for now */
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void kindle51einkUpdate(FBInfo *fb, lua_State *L) {
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mxcfb_update_data myarea;
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fb4BppTo8Bpp(fb);
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fillMxcfbUpdateData(&myarea, fb, L);
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ioctl(fb->fd, MXCFB_SEND_UPDATE, &myarea);
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}
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#endif
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static int openFrameBuffer(lua_State *L) {
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@ -65,6 +183,22 @@ static int openFrameBuffer(lua_State *L) {
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fb->finfo.type);
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}
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if (strncmp(fb->finfo.id, "mxc_epdc_fb", 11) == 0) {
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/* Kindle PaperWhite and KT with 5.1 or later firmware */
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einkUpdateFunc = &kindle51einkUpdate;
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} else if (strncmp(fb->finfo.id, "eink_fb", 7) == 0) {
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if (fb->vinfo.bits_per_pixel == 8) {
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/* kindle4 */
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einkUpdateFunc = &kindle4einkUpdate;
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} else {
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/* kindle2, 3, DXG */
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einkUpdateFunc = &kindle3einkUpdate;
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}
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} else {
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return luaL_error(L, "eink model %s not supported",
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fb->finfo.id);
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}
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if (ioctl(fb->fd, FBIOGET_VSCREENINFO, &fb->vinfo)) {
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return luaL_error(L, "cannot get variable screen info");
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}
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@ -167,139 +301,11 @@ static int closeFrameBuffer(lua_State *L) {
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return 0;
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}
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#ifndef EMULATE_READER
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inline void fbInvert4BppTo8Bpp(FBInfo *fb) {
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int i = 0, j = 0, h = 0, w = 0, pitch = 0, fb_pitch = 0;
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uint8_t *shadow_buf = NULL, *fb_buf = NULL;
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shadow_buf = fb->buf->data;
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fb_buf = fb->real_buf->data;
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h = fb->buf->h;
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w = fb->buf->w;
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pitch = fb->buf->pitch;
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fb_pitch = fb->real_buf->pitch;
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/* copy bitmap from 4bpp shadow blitbuffer to framebuffer */
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for (i = (h-1); i > 0; i--) {
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for (j = (w-1)/2; j > 0; j--) {
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fb_buf[i*fb_pitch + j*2] = shadow_buf[i*pitch + j];
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fb_buf[i*fb_pitch + j*2] &= 0xF0;
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fb_buf[i*fb_pitch + j*2] |= shadow_buf[i*pitch + j]>>4 & 0x0F;
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fb_buf[i*fb_pitch + j*2 + 1] = shadow_buf[i*pitch + j];
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fb_buf[i*fb_pitch + j*2 + 1] &= 0x0F;
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fb_buf[i*fb_pitch + j*2 + 1] |= shadow_buf[i*pitch + j]<<4 & 0xF0;
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}
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}
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}
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inline void fb4BppTo8Bpp(FBInfo *fb) {
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int i = 0, j = 0, h = 0, w = 0, pitch = 0, fb_pitch = 0;
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uint8_t *shadow_buf = NULL, *fb_buf = NULL;
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shadow_buf = fb->buf->data;
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fb_buf = fb->real_buf->data;
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/* h is 1024 for PaperWhite */
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h = fb->buf->h;
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/* w is 758 for PaperWhite */
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w = fb->buf->w;
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/* pitch is 384 for shadow buffer */
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pitch = fb->buf->pitch;
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/* pitch is 768 for PaperWhite */
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fb_pitch = fb->real_buf->pitch;
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/* copy bitmap from 4bpp shadow blitbuffer to framebuffer */
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for (i = (h-1); i > 0; i--) {
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for (j = (w-1)/2; j > 0; j--) {
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fb_buf[i*fb_pitch + j*2] = shadow_buf[i*pitch + j];
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fb_buf[i*fb_pitch + j*2] &= 0xF0;
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fb_buf[i*fb_pitch + j*2] |= shadow_buf[i*pitch + j]>>4 & 0x0F;
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fb_buf[i*fb_pitch + j*2] = ~fb_buf[i*fb_pitch + j*2];
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fb_buf[i*fb_pitch + j*2 + 1] = shadow_buf[i*pitch + j];
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fb_buf[i*fb_pitch + j*2 + 1] &= 0x0F;
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fb_buf[i*fb_pitch + j*2 + 1] |= shadow_buf[i*pitch + j]<<4 & 0xF0;
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fb_buf[i*fb_pitch + j*2 + 1] = ~fb_buf[i*fb_pitch + j*2 + 1];
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}
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}
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}
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inline void fillUpdateAreaT(update_area_t *myarea, FBInfo *fb, lua_State *L) {
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int fxtype = luaL_optint(L, 2, 0);
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myarea->x1 = luaL_optint(L, 3, 0);
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myarea->y1 = luaL_optint(L, 4, 0);
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myarea->x2 = myarea->x1 + luaL_optint(L, 5, fb->vinfo.xres);
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myarea->y2 = myarea->y1 + luaL_optint(L, 6, fb->vinfo.yres);
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myarea->buffer = NULL;
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myarea->which_fx = fxtype ? fx_update_partial : fx_update_full;
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}
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inline void fillMxcfbUpdateData51(mxcfb_update_data51 *myarea, FBInfo *fb, lua_State *L) {
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myarea->update_region.top = luaL_optint(L, 3, 0);
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myarea->update_region.left = luaL_optint(L, 4, 0);
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myarea->update_region.width = luaL_optint(L, 5, fb->vinfo.xres);
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myarea->update_region.height = luaL_optint(L, 6, fb->vinfo.yres);
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myarea->waveform_mode = 257;
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myarea->update_mode = 0;
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myarea->update_marker = 1;
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myarea->hist_bw_waveform_mode = 0;
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myarea->hist_gray_waveform_mode = 0;
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myarea->temp = 0x1001;
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myarea->flags = 0;
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myarea->alt_buffer_data.virt_addr = NULL;
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myarea->alt_buffer_data.phys_addr = NULL;
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myarea->alt_buffer_data.width = 0;
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myarea->alt_buffer_data.height = 0;
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myarea->alt_buffer_data.alt_update_region.top = 0;
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myarea->alt_buffer_data.alt_update_region.left = 0;
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myarea->alt_buffer_data.alt_update_region.width = 0;
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myarea->alt_buffer_data.alt_update_region.height = 0;
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}
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inline void Kindle3einkUpdate(FBInfo *fb, lua_State *L) {
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update_area_t myarea;
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fillUpdateAreaT(&myarea, fb, L);
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ioctl(fb->fd, FBIO_EINK_UPDATE_DISPLAY_AREA, &myarea);
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}
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inline void kindle4einkUpdate(FBInfo *fb, lua_State *L) {
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update_area_t myarea;
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fbInvert4BppTo8Bpp(fb);
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fillUpdateAreaT(&myarea, fb, L);
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ioctl(fb->fd, FBIO_EINK_UPDATE_DISPLAY_AREA, &myarea);
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}
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inline void kindlePWeinkUpdate(FBInfo *fb, lua_State *L) {
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mxcfb_update_data51 myarea;
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fb4BppTo8Bpp(fb);
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fillMxcfbUpdateData51(&myarea, fb, L);
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ioctl(fb->fd, 0x4048462e, &myarea);
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}
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#endif
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static int einkUpdate(lua_State *L) {
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FBInfo *fb = (FBInfo*) luaL_checkudata(L, 1, "einkfb");
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// for Kindle e-ink display
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#ifndef EMULATE_READER
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if (fb->vinfo.bits_per_pixel == 8) {
|
|
|
|
|
if (fb->buf->h == 1024) {
|
|
|
|
|
/* Kindle PaperWhite */
|
|
|
|
|
kindlePWeinkUpdate(fb, L);
|
|
|
|
|
} else {
|
|
|
|
|
/* kindle4 */
|
|
|
|
|
kindle4einkUpdate(fb, L);
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
/* kindle2, 3, DXG */
|
|
|
|
|
Kindle3einkUpdate(fb, L);
|
|
|
|
|
}
|
|
|
|
|
einkUpdateFunc(fb, L);
|
|
|
|
|
#else
|
|
|
|
|
int fxtype = luaL_optint(L, 2, 0);
|
|
|
|
|
// for now, we only do fullscreen blits in emulation mode
|
|
|
|
|