PACKAGE/DEFCONFIG: add sdlbook app (#99)

with miyoo&optimization changes
2025-09-27 22:24:19 +03:00 · 2024-05-06 23:56:12 +02:00
parent f5bdd4355a
commit 1852510148
16 changed files with 802 additions and 0 deletions
--- a/board/miyoo/main/books/.gitkeep
+++ b/board/miyoo/main/books/.gitkeep
--- a/board/miyoo/main/gmenu2x/sections/applications/sdlbook
+++ b/board/miyoo/main/gmenu2x/sections/applications/sdlbook
@@ -0,0 +1,5 @@
+title=SDLbook
+description=DJVU/PDF/EPUB viewer & more
+exec=/usr/bin/sdlbook
+manual=/mnt/manuals/sdlbook.man.txt
+selectordir=/mnt/books
--- a/board/miyoo/main/manuals/sdlbook.man.txt
+++ b/board/miyoo/main/manuals/sdlbook.man.txt
@@ -0,0 +1,15 @@
+SDLbook hotkeys:
+-----------------------
+A = accept
+B = cancel
+UP = scroll up
+DOWN = scroll down
+L2/R2+UP = scroll fast upwards
+L2/R2+DOWN = scroll fast downwards
+L1 = scroll one page up
+R1 = scroll one page down
+X = zoom in page
+Y = zoom out page
+SELECT = jump to inserted page number 
+RESET = quit app
+START = show HELP screen
--- a/board/miyoo/scripts/genimage.sh
+++ b/board/miyoo/scripts/genimage.sh
@@ -63,6 +63,8 @@ convert board/miyoo/miyoo-splash.png -pointsize 12 -fill white -annotate +10+230
 # Workaround for build apss and configs being placed in /usr/ after img generation (as we use MAIN)
 test -d "${BINARIES_DIR}/gmenu2x" && cp -r "${BINARIES_DIR}/gmenu2x/" "${BINARIES_DIR}/main/"
 test -d "${BINARIES_DIR}/emus" && cp -r "${BINARIES_DIR}/emus/" "${BINARIES_DIR}/main/"
+test -d "${BINARIES_DIR}/apps" && cp -r "${BINARIES_DIR}/apps/" "${BINARIES_DIR}/main/"
+test -d "${BINARIES_DIR}/games" && cp -r "${BINARIES_DIR}/games/" "${BINARIES_DIR}/main/"
 if test -d "${BINARIES_DIR}/retroarch"; then
 	rsync -avzh "${BINARIES_DIR}/retroarch/" "${BINARIES_DIR}/main/.retroarch/"
 	## Generate list of cores to be used
--- a/configs/miyoo_musl_defconfig
+++ b/configs/miyoo_musl_defconfig
@@ -234,6 +234,7 @@ BR2_PACKAGE_MIYOO_CTL=y
 BR2_PACKAGE_FBCAT=y
 BR2_PACKAGE_ST_SDL=y
 BR2_PACKAGE_COMMANDER=y
+BR2_PACKAGE_SDLBOOK=y
 BR2_PACKAGE_OPKG=y
 BR2_PACKAGE_OPKG_UTILS=y
 BR2_PACKAGE_DIALOG=y
--- a/configs/miyoo_uclibc_defconfig
+++ b/configs/miyoo_uclibc_defconfig
@@ -211,6 +211,7 @@ BR2_PACKAGE_MIYOO_CTL=y
 BR2_PACKAGE_FBCAT=y
 BR2_PACKAGE_ST_SDL=y
 BR2_PACKAGE_COMMANDER=y
+BR2_PACKAGE_SDLBOOK=y
 BR2_PACKAGE_OPKG=y
 BR2_PACKAGE_OPKG_UTILS=y
 BR2_PACKAGE_DIALOG=y
--- a/package/Config.in
+++ b/package/Config.in
@@ -2219,6 +2219,7 @@ menu "Miscellaneous"
 	source "package/fbcat/Config.in"
 	source "package/st-sdl/Config.in"
 	source "package/commander/Config.in"
+	source "package/sdlbook/Config.in"

 endmenu

--- a/package/sdlbook/0001-mod-input_loop-char-result-stack-with-arrow-keys.patch
+++ b/package/sdlbook/0001-mod-input_loop-char-result-stack-with-arrow-keys.patch
@@ -0,0 +1,99 @@
+From 5ed7374aa765b8e0a5380590efcefa5c6ddcdb06 Mon Sep 17 00:00:00 2001
+From: Apaczer <94932128+Apaczer@users.noreply.github.com>
+Date: Wed, 27 Mar 2024 21:26:08 +0100
+Subject: [PATCH 1/7] mod input_loop() char result stack with arrow keys
+
+---
+ sdlbook.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++-----
+ 1 file changed, 47 insertions(+), 5 deletions(-)
+
+diff --git a/sdlbook.c b/sdlbook.c
+index 33a2f29..d608aba 100644
+--- a/sdlbook.c
+++ b/sdlbook.c
+@@ -589,6 +589,7 @@ static void input_loop(const char* title, char *result, enum input_flags flags)
+ 	ezsdl_update_region(0, 0, ezsdl_get_width(), MIN(desired_height, ezsdl_get_height()));
+ 	char* p = result;
+ 	*p = 0;
+	int p_n = 48;
+ 	struct event event;
+ 	while(1) {
+ 		enum eventtypes e;
+@@ -597,20 +598,61 @@ static void input_loop(const char* title, char *result, enum input_flags flags)
+ 		case EV_QUIT:
+ 		case EV_KEYUP:
+ 			switch(event.which) {
+-			case SDLK_BACKSPACE:
+			case SDLK_BACKSPACE: case SDLK_LEFT:
+				if(flags == INPUT_LOOP_RET)
+					goto out;
+ 				if(p > result) p--;
+				p_n = *(p - 1);
+ 				*p = 0;
+ 				goto drawit;
+-			case SDLK_RETURN: case SDLK_ESCAPE:
+			case SDLK_RIGHT:
+				if(flags == INPUT_LOOP_RET)
+					goto out;
+				if(p - result < 20) {
+					p_n = 48;
+					*(p++) = p_n;
+					*p = 0;
+					goto drawit;
+				} else
+					break;
+			case SDLK_RETURN: case SDLK_ESCAPE: case SDLK_g:
+ 		out:;
+ 				*p = 0;
+ 				ezsdl_clear();
+ 				return;
+			case SDLK_UP:
+				if(flags == INPUT_LOOP_RET)
+					goto out;
+				p_n = *(p - 1);
+				if(p_n < 48 || p_n > 57) p_n = 48;
+				if(p >= result && p_n < 57 && (p - result < 20)) {
+					if (p > result) p--;
+					p_n++;
+					*(p++) = p_n;
+					*p = 0;
+					goto drawit;
+				} else
+					break;
+			case SDLK_DOWN:
+				if(flags == INPUT_LOOP_RET)
+					goto out;
+				p_n = *(p - 1);
+				if(p_n < 48 || p_n > 57) p_n = 48;
+				if(p >= result && p_n >= 48  && (p - result < 20)) {
+					if (p_n == 48 ) p_n++;
+					if (p > result) p--;
+					p_n--;
+					*(p++) = p_n;
+					*p = 0;
+					goto drawit;
+				} else
+					break;
+ 			default:
+ 				if(flags == INPUT_LOOP_RET)
+ 					goto out;
+-				else if(flags == INPUT_LOOP_NUMERIC && isdigit(event.which) && (p - result < 20)) {
+-					*(p++) = event.which;
+				else if(flags == INPUT_LOOP_NUMERIC && (p - result < 20)) {
+					if(isdigit(event.which)) *(p++) = event.which;
+					else if (event.which == 275) *(p++) = 48;
+ 					*p = 0;
+ 				}
+ 			drawit:
+@@ -865,7 +907,7 @@ int main(int argc, char **argv) {
+ 							{
+ 								char buf[32];
+ 								buf[0] = 0;
+-								input_loop("enter page no", buf, INPUT_LOOP_NUMERIC);
+								input_loop("Enter page No.: (use number/arrow keys)", buf, INPUT_LOOP_NUMERIC);
+ 								if(*buf) need_redraw = set_page(atoi(buf));
+ 								else need_redraw = 1;
+ 							}
+-- 
+2.34.1
+
--- a/package/sdlbook/0002-add-custom-Input-mapping-with-header.patch
+++ b/package/sdlbook/0002-add-custom-Input-mapping-with-header.patch
@@ -0,0 +1,253 @@
+From 4126f952f021b7e8fca7880e072092fcb3812f29 Mon Sep 17 00:00:00 2001
+From: Apaczer <94932128+Apaczer@users.noreply.github.com>
+Date: Sat, 23 Mar 2024 16:30:20 +0100
+Subject: [PATCH 2/7] add custom Input mapping with header
+
+---
+ inputmap.h | 40 ++++++++++++++++++++++++++++++
+ sdlbook.c  | 73 +++++++++++++++++++++++++++---------------------------
+ 2 files changed, 77 insertions(+), 36 deletions(-)
+ create mode 100644 inputmap.h
+
+diff --git a/inputmap.h b/inputmap.h
+new file mode 100644
+index 0000000..0210a24
+--- /dev/null
+++ b/inputmap.h
+@@ -0,0 +1,40 @@
+#ifndef INPUTMAP_H
+#define INPUTMAP_H
+
+#define INPUT_UP SDLK_UP
+#define INPUT_DOWN SDLK_DOWN
+#define INPUT_LEFT SDLK_LEFT
+#define INPUT_RIGHT SDLK_RIGHT
+#define INPUT_LMOD SDLK_LCTRL
+#define INPUT_RMOD SDLK_RCTRL
+#define INPUT_PGDOWN SDLK_PAGEDOWN
+#define INPUT_PGUP SDLK_PAGEUP
+#define INPUT_ZOOMIN SDLK_KP_PLUS
+#define INPUT_ZOOMOUT SDLK_KP_MINUS
+#define INPUT_PAGEN SDLK_g
+#define INPUT_CLEAR SDLK_c
+#define INPUT_CANCEL SDLK_BACKSPACE
+#define INPUT_CONFIRM SDLK_RETURN
+#define INPUT_EXIT SDLK_ESCAPE
+#define INPUT_QUIT SDLK_q
+#define INPUT_HELP SDLK_F1
+
+#define STR_UP "UP"
+#define STR_DOWN "DOWN"
+#define STR_LEFT "LEFT"
+#define STR_RIGHT "RIGHT"
+#define STR_LMOD "LCTRL"
+#define STR_RMOD "RCTRL"
+#define STR_PGDOWN "PAGE_DOWN"
+#define STR_PGUP "PAGE_UP"
+#define STR_ZOOMIN "NUM+"
+#define STR_ZOOMOUT "NUM-"
+#define STR_PAGEN "G"
+#define STR_CLEAR "C"
+#define STR_CANCEL "BACKSPACE"
+#define STR_CONFIRM "RETURN"
+#define STR_EXIT "ESC"
+#define STR_QUIT "Q"
+#define STR_HELP "F1"
+
+#endif
+diff --git a/sdlbook.c b/sdlbook.c
+index d608aba..79b77f3 100644
+--- a/sdlbook.c
+++ b/sdlbook.c
+@@ -16,6 +16,7 @@
+ #include <mupdf/fitz.h>
+ #include "ezsdl.h"
+ #include "topaz.h"
+#include "inputmap.h"
+ 
+ #pragma RcB2 LINK "-ldjvulibre" "-lSSL" "-lmupdf"
+ 
+@@ -550,13 +551,13 @@ static int change_scroll_h(int incr) {
+ 
+ #define HELP_TEXT \
+ 	"HELP SCREEN - HIT ANY KEY TO EXIT\n" \
+-	"UP, DOWN ARROW - SCROLL 32 PIX\n" \
+-	"CTRL + UP, DOWN ARROW - SCROLL 96 PIX\n" \
+-	"PAGE_UP/DOWN - SCROLL ONE PAGE\n" \
+-	"KEYPAD +/- OR CTRL-WHEEL - ZOOM\n" \
+-	"G - ENTER PAGE NUMBER\n" \
+-	"Q/ESC - QUIT\n" \
+-	"F1 - SHOW HELP SCREEN\n"
+	STR_UP ", " STR_DOWN " - SCROLL 32 PIX\n" \
+	STR_LMOD "/" STR_RMOD " + " STR_UP "/" STR_DOWN " - SCROLL 96 PIX\n" \
+	STR_PGUP "/" STR_PGDOWN " - SCROLL ONE PAGE\n" \
+	STR_ZOOMIN "/" STR_ZOOMOUT " OR " STR_LMOD "/" STR_RMOD " + WHEEL - ZOOM\n" \
+	STR_PAGEN " - ENTER PAGE NUMBER\n" \
+	STR_QUIT "/" STR_EXIT " - QUIT\n" \
+	STR_HELP " - SHOW HELP SCREEN\n"
+ 
+ static int get_return_count(const char* text) {
+ 	int count = 0;
+@@ -598,14 +599,14 @@ static void input_loop(const char* title, char *result, enum input_flags flags)
+ 		case EV_QUIT:
+ 		case EV_KEYUP:
+ 			switch(event.which) {
+-			case SDLK_BACKSPACE: case SDLK_LEFT:
+			case INPUT_CANCEL: case INPUT_LEFT:
+ 				if(flags == INPUT_LOOP_RET)
+ 					goto out;
+ 				if(p > result) p--;
+ 				p_n = *(p - 1);
+ 				*p = 0;
+ 				goto drawit;
+-			case SDLK_RIGHT:
+			case INPUT_RIGHT:
+ 				if(flags == INPUT_LOOP_RET)
+ 					goto out;
+ 				if(p - result < 20) {
+@@ -615,12 +616,12 @@ static void input_loop(const char* title, char *result, enum input_flags flags)
+ 					goto drawit;
+ 				} else
+ 					break;
+-			case SDLK_RETURN: case SDLK_ESCAPE: case SDLK_g:
+			case INPUT_CONFIRM: case INPUT_EXIT: case INPUT_PAGEN:
+ 		out:;
+ 				*p = 0;
+ 				ezsdl_clear();
+ 				return;
+-			case SDLK_UP:
+			case INPUT_UP:
+ 				if(flags == INPUT_LOOP_RET)
+ 					goto out;
+ 				p_n = *(p - 1);
+@@ -633,7 +634,7 @@ static void input_loop(const char* title, char *result, enum input_flags flags)
+ 					goto drawit;
+ 				} else
+ 					break;
+-			case SDLK_DOWN:
+			case INPUT_DOWN:
+ 				if(flags == INPUT_LOOP_RET)
+ 					goto out;
+ 				p_n = *(p - 1);
+@@ -821,51 +822,51 @@ int main(int argc, char **argv) {
+ 					goto dun_goofed;
+ 				case EV_KEYDOWN:
+ 					switch(event.which) {
+-						case SDLK_LCTRL:
+						case INPUT_LMOD:
+ 							left_ctrl_pressed = 1;
+ 							break;
+-						case SDLK_RCTRL:
+						case INPUT_RMOD:
+ 							right_ctrl_pressed = 1;
+ 							break;
+-						case SDLK_q:
+						case INPUT_QUIT:
+ 							goto dun_goofed;
+-						case SDLK_KP_PLUS:
+						case INPUT_ZOOMIN:
+ 							need_redraw = change_scale(+10);
+ 							break;
+-						case SDLK_KP_MINUS:
+						case INPUT_ZOOMOUT:
+ 							need_redraw = change_scale(-10);
+ 							break;
+-						case SDLK_PAGEDOWN:
+						case INPUT_PGDOWN:
+ 							scroll_dist_v += page_dims.h;
+ 							break;
+-						case SDLK_PAGEUP:
+						case INPUT_PGUP:
+ 							scroll_dist_v -= page_dims.h;
+ 							break;
+-						case SDLK_UP:
+						case INPUT_UP:
+ 							if((event.mod & KMOD_LCTRL) || (event.mod & KMOD_RCTRL))
+ 								scroll_dist_v += -96;
+ 							else
+ 								scroll_dist_v += -32;
+ 							break;
+-						case SDLK_DOWN:
+						case INPUT_DOWN:
+ 							if((event.mod & KMOD_LCTRL) || (event.mod & KMOD_RCTRL))
+ 								scroll_dist_v += +96;
+ 							else
+ 								scroll_dist_v += +32;
+ 							break;
+-						case SDLK_LEFT:
+						case INPUT_LEFT:
+ 							if((event.mod & KMOD_LCTRL) || (event.mod & KMOD_RCTRL))
+ 								need_redraw = change_scroll_h(-96);
+ 							else
+ 								need_redraw = change_scroll_h(-32);
+ 							break;
+-						case SDLK_RIGHT:
+						case INPUT_RIGHT:
+ 							if((event.mod & KMOD_LCTRL) || (event.mod & KMOD_RCTRL))
+ 								need_redraw = change_scroll_h(+96);
+ 							else
+ 								need_redraw = change_scroll_h(+32);
+ 							break;
+-						case SDLK_RETURN:
+						case INPUT_CONFIRM:
+ 							if((event.mod & KMOD_LALT) ||
+ 							   (event.mod & KMOD_RALT)) {
+ 								ezsdl_toggle_fullscreen();
+@@ -880,21 +881,21 @@ int main(int argc, char **argv) {
+ 					break;
+ 				case EV_KEYUP:
+ 					switch(event.which) {
+-						case SDLK_UP:
+-						case SDLK_DOWN:
+-						case SDLK_LEFT:
+-						case SDLK_RIGHT:
+-						case SDLK_PAGEUP:
+-						case SDLK_PAGEDOWN:
+						case INPUT_UP:
+						case INPUT_DOWN:
+						case INPUT_LEFT:
+						case INPUT_RIGHT:
+						case INPUT_PGUP:
+						case INPUT_PGDOWN:
+ 							need_redraw = 1;
+ 							break;
+-						case SDLK_LCTRL:
+						case INPUT_LMOD:
+ 							left_ctrl_pressed = 0;
+ 							break;
+-						case SDLK_RCTRL:
+						case INPUT_RMOD:
+ 							right_ctrl_pressed = 0;
+ 							break;
+-						case SDLK_F1:
+						case INPUT_HELP:
+ 							{
+ 								char buf[32];
+ 								buf[0] = 0;
+@@ -903,7 +904,7 @@ int main(int argc, char **argv) {
+ 							}
+ 							break;
+ 
+-						case SDLK_g:
+						case INPUT_PAGEN:
+ 							{
+ 								char buf[32];
+ 								buf[0] = 0;
+@@ -912,12 +913,12 @@ int main(int argc, char **argv) {
+ 								else need_redraw = 1;
+ 							}
+ 							break;
+-						case SDLK_c:
+						case INPUT_CLEAR:
+ 							ezsdl_clear();
+ 							ezsdl_refresh();
+ 							need_redraw = 1;
+ 							break;
+-						case SDLK_ESCAPE:
+						case INPUT_EXIT:
+ 							goto dun_goofed;
+ 						default:
+ 							break;
+-- 
+2.34.1
+
--- a/package/sdlbook/0003-add-MIYOO-changes.patch
+++ b/package/sdlbook/0003-add-MIYOO-changes.patch
@@ -0,0 +1,147 @@
+From 1decdb74c622f2c00e9b37bf4165f2a6e5bcdec3 Mon Sep 17 00:00:00 2001
+From: Apaczer <94932128+Apaczer@users.noreply.github.com>
+Date: Sun, 24 Mar 2024 15:12:08 +0100
+Subject: [PATCH 3/7] add MIYOO changes
+
+make CC=${CROSS_COMPILE}gcc CFLAGS="-DMIYOO -Ofast"
+---
+ inputmap.h | 38 ++++++++++++++++++++++++++++++++++++++
+ sdlbook.c  | 34 ++++++++++++++++++++++------------
+ 2 files changed, 60 insertions(+), 12 deletions(-)
+
+diff --git a/inputmap.h b/inputmap.h
+index 0210a24..a34978f 100644
+--- a/inputmap.h
+++ b/inputmap.h
+@@ -1,6 +1,43 @@
+ #ifndef INPUTMAP_H
+ #define INPUTMAP_H
+ 
+#ifdef MIYOO
+#define INPUT_UP SDLK_UP
+#define INPUT_DOWN SDLK_DOWN
+#define INPUT_LEFT SDLK_LEFT
+#define INPUT_RIGHT SDLK_RIGHT
+#define INPUT_LMOD SDLK_PAGEUP
+#define INPUT_RMOD SDLK_PAGEDOWN
+#define INPUT_PGDOWN SDLK_BACKSPACE
+#define INPUT_PGUP SDLK_TAB
+#define INPUT_ZOOMIN SDLK_LSHIFT
+#define INPUT_ZOOMOUT SDLK_SPACE
+#define INPUT_PAGEN SDLK_ESCAPE
+#define INPUT_CLEAR SDLK_LCTRL
+#define INPUT_CANCEL SDLK_LCTRL
+#define INPUT_CONFIRM SDLK_LALT
+#define INPUT_EXIT SDLK_RCTRL
+#define INPUT_QUIT SDLK_q
+#define INPUT_HELP SDLK_RETURN
+
+#define STR_UP "UP"
+#define STR_DOWN "DOWN"
+#define STR_LEFT "LEFT"
+#define STR_RIGHT "RIGHT"
+#define STR_LMOD "L2"
+#define STR_RMOD "R2"
+#define STR_PGDOWN "R1"
+#define STR_PGUP "L1"
+#define STR_ZOOMIN "X"
+#define STR_ZOOMOUT "Y"
+#define STR_PAGEN "SELECT"
+#define STR_CLEAR "?"
+#define STR_CANCEL "B"
+#define STR_CONFIRM "A"
+#define STR_EXIT "RESET"
+#define STR_QUIT ""
+#define STR_HELP "START"
+#else
+ #define INPUT_UP SDLK_UP
+ #define INPUT_DOWN SDLK_DOWN
+ #define INPUT_LEFT SDLK_LEFT
+@@ -36,5 +73,6 @@
+ #define STR_EXIT "ESC"
+ #define STR_QUIT "Q"
+ #define STR_HELP "F1"
+#endif
+ 
+ #endif
+diff --git a/sdlbook.c b/sdlbook.c
+index 79b77f3..584f02d 100644
+--- a/sdlbook.c
+++ b/sdlbook.c
+@@ -117,9 +117,15 @@ static void read_write_config(int doread) {
+ 		cfg_close(config);
+ 	}
+ 	if(doread) {
+#ifdef MIYOO
+		if(!config_data.w) config_data.w = 320;
+		if(!config_data.h) config_data.h = 240;
+		if(!config_data.scale) config_data.scale = 80;
+#else
+ 		if(!config_data.w) config_data.w = 640;
+ 		if(!config_data.h) config_data.h = 480;
+ 		if(!config_data.scale) config_data.scale = 100;
+#endif
+ 	}
+ }
+ 
+@@ -550,14 +556,14 @@ static int change_scroll_h(int incr) {
+ }
+ 
+ #define HELP_TEXT \
+-	"HELP SCREEN - HIT ANY KEY TO EXIT\n" \
+-	STR_UP ", " STR_DOWN " - SCROLL 32 PIX\n" \
+-	STR_LMOD "/" STR_RMOD " + " STR_UP "/" STR_DOWN " - SCROLL 96 PIX\n" \
+-	STR_PGUP "/" STR_PGDOWN " - SCROLL ONE PAGE\n" \
+-	STR_ZOOMIN "/" STR_ZOOMOUT " OR " STR_LMOD "/" STR_RMOD " + WHEEL - ZOOM\n" \
+-	STR_PAGEN " - ENTER PAGE NUMBER\n" \
+-	STR_QUIT "/" STR_EXIT " - QUIT\n" \
+-	STR_HELP " - SHOW HELP SCREEN\n"
+	"             HELP SCREEN\n       (press any key to exit)\n" \
+	STR_UP ", " STR_DOWN " - scroll 32px\n" \
+	STR_LMOD "/" STR_RMOD " + " STR_UP "/" STR_DOWN " - scroll 96px\n" \
+	STR_PGUP "/" STR_PGDOWN " - scroll one page -/+\n" \
+	STR_ZOOMIN "/" STR_ZOOMOUT " - zoom in/out\n" \
+	STR_PAGEN " - jump to page number\n" \
+	STR_QUIT "/" STR_EXIT " - quit\n" \
+	STR_HELP " - show this message\n"
+ 
+ static int get_return_count(const char* text) {
+ 	int count = 0;
+@@ -584,9 +590,9 @@ static void input_loop(const char* title, char *result, enum input_flags flags)
+ {
+ 	int ret_count = get_return_count(title);
+ 	if(!ret_count) ret_count = 1;
+-	int desired_height = (ret_count+2) * 10 * 2;
+	int desired_height = (ret_count) * 10 * 2 + 10;
+ 	ezsdl_fill_rect(0,0, ezsdl_get_width(), MIN(desired_height, ezsdl_get_height()), RGB(0xff,0x00,0x00), 1);
+-	draw_font_lines(title, &ss_font, 8, 8, 2);
+	draw_font_lines(title, &ss_font, 8, 8, 1);
+ 	ezsdl_update_region(0, 0, ezsdl_get_width(), MIN(desired_height, ezsdl_get_height()));
+ 	char* p = result;
+ 	*p = 0;
+@@ -657,8 +663,8 @@ static void input_loop(const char* title, char *result, enum input_flags flags)
+ 					*p = 0;
+ 				}
+ 			drawit:
+-				ezsdl_fill_rect(8, desired_height - 10*2, ezsdl_get_width() -8, MIN(desired_height, ezsdl_get_height()), RGB(0xff,0x00,0x00), 1);
+-				draw_font(result, &ss_font, 8, desired_height - 10*2, 2);
+				ezsdl_fill_rect(8, desired_height - 11*2, ezsdl_get_width() -8, MIN(desired_height, ezsdl_get_height()), RGB(0xff,0x00,0x00), 1);
+				draw_font(result, &ss_font, 8, desired_height - 11*2, 2);
+ 				ezsdl_update_region(0, 0, ezsdl_get_width(), MIN(desired_height, ezsdl_get_height()));
+ 				break;
+ 			}
+@@ -770,7 +776,11 @@ int main(int argc, char **argv) {
+ 
+ 	init_gfx();
+ 
+#ifdef MIYOO
+	SDL_ShowCursor(0);
+#else
+ 	SDL_ShowCursor(1);
+#endif
+ #ifndef USE_SDL2
+ 	SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
+ #endif
+-- 
+2.34.1
+
--- a/package/sdlbook/0004-show-curr-and-total-page-count-in-Enter-page-view.patch
+++ b/package/sdlbook/0004-show-curr-and-total-page-count-in-Enter-page-view.patch
@@ -0,0 +1,37 @@
+From b433bbaf2c8f60938f64b9f1584a446102118ba9 Mon Sep 17 00:00:00 2001
+From: Apaczer <94932128+Apaczer@users.noreply.github.com>
+Date: Fri, 26 Apr 2024 20:55:02 +0200
+Subject: [PATCH 4/7] show curr and total page count in "Enter page" view
+
+reduce page_count display by 1, because curr_page init value is 0
+---
+ sdlbook.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/sdlbook.c b/sdlbook.c
+index 584f02d..f11cc30 100644
+--- a/sdlbook.c
+++ b/sdlbook.c
+@@ -61,7 +61,7 @@ static unsigned *image_data;
+ static void update_title(void) {
+ 	char buf[64];
+ 	snprintf(buf, sizeof buf, "SDLBook [%d/%d] (%d%%) %s",
+-			curr_page, page_count, config_data.scale, filename);
+			curr_page, page_count-1, config_data.scale, filename);
+ 	ezsdl_set_title(buf);
+ }
+ 
+@@ -918,7 +918,9 @@ int main(int argc, char **argv) {
+ 							{
+ 								char buf[32];
+ 								buf[0] = 0;
+-								input_loop("Enter page No.: (use number/arrow keys)", buf, INPUT_LOOP_NUMERIC);
+								char page_number[100];
+								sprintf(page_number, "Enter page %i/%i: (use number/arrows)", curr_page, page_count-1);
+								input_loop(page_number, buf, INPUT_LOOP_NUMERIC);
+ 								if(*buf) need_redraw = set_page(atoi(buf));
+ 								else need_redraw = 1;
+ 							}
+-- 
+2.34.1
+
--- a/package/sdlbook/0005-don-t-change_scroll_v-after-last-page.patch
+++ b/package/sdlbook/0005-don-t-change_scroll_v-after-last-page.patch
@@ -0,0 +1,30 @@
+From fa6e1a82caa29f95761b7c4a902cc56f3d4bcd76 Mon Sep 17 00:00:00 2001
+From: Apaczer <94932128+Apaczer@users.noreply.github.com>
+Date: Sat, 27 Apr 2024 17:12:45 +0200
+Subject: [PATCH 5/7] don't change_scroll_v after last page
+
+Update sdlbook.c
+
+Update sdlbook.c
+
+Update sdlbook.c
+---
+ sdlbook.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/sdlbook.c b/sdlbook.c
+index f11cc30..535a194 100644
+--- a/sdlbook.c
+++ b/sdlbook.c
+@@ -537,6 +537,8 @@ static int change_scroll_v(int incr) {
+ 			need_redraw = change_page(-1);
+ 			scroll_line_v = MAX(scroll_line_v + incr + (int)page_dims.h, 0);
+ 		}
+	} else if(scroll_line_v + incr > page_dims.h/2 && curr_page >= page_count-1) {
+		scroll_line_v = (int)page_dims.h/2;
+ 	} else if(scroll_line_v + incr > page_dims.h) {
+ 		scroll_line_v = scroll_line_v + incr - (int)page_dims.h;
+ 		need_redraw = change_page(+1);
+-- 
+2.34.1
+
--- a/package/sdlbook/0006-define-RENDER_ONEPAGE-to-omit-following-page-bufferi.patch
+++ b/package/sdlbook/0006-define-RENDER_ONEPAGE-to-omit-following-page-bufferi.patch
@@ -0,0 +1,155 @@
+From a999470df6328f26b59f88e18396a3e6c8d3466d Mon Sep 17 00:00:00 2001
+From: Apaczer <94932128+Apaczer@users.noreply.github.com>
+Date: Fri, 26 Apr 2024 21:19:20 +0200
+Subject: [PATCH 6/7] define RENDER_ONEPAGE to omit following page buffering
+
+- increases image swapping time with minimal RAM
+- use get_page_bottom() to differentiate page size height
+- change to start page with PAGEDOWN/UP keys
+---
+ sdlbook.c | 64 +++++++++++++++++++++++++++++++++++++++++++++----------
+ 1 file changed, 53 insertions(+), 11 deletions(-)
+
+diff --git a/sdlbook.c b/sdlbook.c
+index 535a194..5d939e8 100644
+--- a/sdlbook.c
+++ b/sdlbook.c
+@@ -151,6 +151,14 @@ static void init_gfx() {
+ 	if(!spritesheet_init(&ss_font, bmp_font, FONT_W, FONT_H)) dprintf(2, "oops\n");
+ }
+ 
+static int get_page_bottom() {
+#ifndef RENDER_ONEPAGE
+	return page_dims.h;
+#else
+	return page_dims.h/2;
+#endif
+}
+
+ static int get_font_width(char letter) {
+ 	return ss_font.sprite_w;
+ }
+@@ -184,7 +192,8 @@ static void draw() {
+ 	unsigned *ptr;
+ 	unsigned pitch;
+ 	int xoff = MAX((int)(ezsdl_get_width() - page_dims.w)/2, 0);
+-	int xmax = page_dims.w, ymax = page_dims.h*2;
+	int xmax = page_dims.w;
+	int ymax = get_page_bottom()*2;
+ 	if(scroll_line_v > ymax) return;
+ 	ymax = MIN(ezsdl_get_height(), ymax-scroll_line_v),
+ 	xmax = MIN(ezsdl_get_width(), xmax-scroll_line_h);
+@@ -221,7 +230,7 @@ static void draw_borders() {
+ static void draw_bottom() {
+ 	int x, y, yline;
+ 	int xmax, ymax, ymin;
+-	ymin = page_dims.h*2-scroll_line_v;
+	ymin = get_page_bottom()*2-scroll_line_v;
+ 	if(ymin < 0) return;
+ 	void *pixels;
+ 	unsigned *ptr;
+@@ -435,7 +444,10 @@ static void* prep_page(int pageno, ddjvu_rect_t *res_rect, ddjvu_rect_t *desired
+ }
+ 
+ static void* prep_pages(int *need_redraw) {
+-	ddjvu_rect_t p1rect, p2rect;
+	ddjvu_rect_t p1rect;
+#ifndef RENDER_ONEPAGE
+	ddjvu_rect_t p2rect;
+#endif
+ 	static int last_page = -1, last_scale = -1;
+ 	if(curr_page == last_page && last_scale == config_data.scale)
+ 		return image_data;
+@@ -443,6 +455,7 @@ static void* prep_pages(int *need_redraw) {
+ 	last_scale = config_data.scale;
+ 	if(need_redraw) *need_redraw = 1;
+ 	char *p1data = prep_page(curr_page, &p1rect, 0);
+#ifndef RENDER_ONEPAGE
+ 	char *p2data = prep_page(curr_page+1, &p2rect, 0);
+ 	if(!p2data) {
+ 		/* probably last page hit */
+@@ -457,15 +470,22 @@ static void* prep_pages(int *need_redraw) {
+ 	}
+ 	if(!(p1data && p2data)) return NULL;
+ 	assert(p1rect.w == p2rect.w && p1rect.h == p2rect.h);
+	int stored_images = 2;
+#else
+	if(!(p1data)) return NULL;
+	int stored_images = 1;
+#endif
+ 
+ 	size_t one_pic = p1rect.w*p1rect.h;
+-	unsigned* imgbuf = malloc(4 * one_pic * 2);
+	unsigned* imgbuf = malloc(4 * one_pic * stored_images);
+ 
+ 	convert_rgb24_to_rgba(p1data, p1rect.w, p1rect.h, imgbuf);
+-	convert_rgb24_to_rgba(p2data, p2rect.w, p2rect.h, imgbuf+one_pic);
+ 	page_dims = p1rect;
+ 	free(p1data);
+#ifndef RENDER_ONEPAGE
+	convert_rgb24_to_rgba(p2data, p2rect.w, p2rect.h, imgbuf+one_pic);
+ 	free(p2data);
+#endif
+ 	return imgbuf;
+ }
+ 
+@@ -531,17 +551,39 @@ static int change_scale(int incr) {
+ 
+ static int change_scroll_v(int incr) {
+ 	int need_redraw = 1;
+#ifndef RENDER_ONEPAGE
+	int page_bottom_prv = scroll_line_v + incr + get_page_bottom();
+#else
+	int page_bottom_prv = scroll_line_v + get_page_bottom()*2 - ezsdl_get_height();
+
+	if(ezsdl_get_height() + incr >= page_dims.h || abs(incr) == get_page_bottom()) {
+		scroll_line_v = 0;
+		change_page(incr > 0 ? +1 : -1);
+		return need_redraw;
+	}
+#endif
+ 	if(scroll_line_v + incr < 0) {
+ 		if(curr_page == 0) scroll_line_v = 0;
+ 		else {
+ 			need_redraw = change_page(-1);
+-			scroll_line_v = MAX(scroll_line_v + incr + (int)page_dims.h, 0);
+			scroll_line_v = MAX(page_bottom_prv, 0);
+ 		}
+-	} else if(scroll_line_v + incr > page_dims.h/2 && curr_page >= page_count-1) {
+#ifndef RENDER_ONEPAGE
+	} else if(scroll_line_v + incr > (int)page_dims.h/2 && curr_page >= page_count-1) {
+ 		scroll_line_v = (int)page_dims.h/2;
+-	} else if(scroll_line_v + incr > page_dims.h) {
+-		scroll_line_v = scroll_line_v + incr - (int)page_dims.h;
+	} else if(scroll_line_v + incr > get_page_bottom()) {
+		scroll_line_v = scroll_line_v + incr - get_page_bottom();
+ 		need_redraw = change_page(+1);
+#else
+	} else if(scroll_line_v + incr > page_dims.h - ezsdl_get_height() && curr_page >= page_count-1) {
+		scroll_line_v = MAX((int)page_dims.h - ezsdl_get_height(),0);
+	} else if(scroll_line_v + incr > get_page_bottom() && ezsdl_get_height() > get_page_bottom()) {
+		scroll_line_v = scroll_line_v + incr - get_page_bottom();
+		need_redraw = change_page(+1);
+	} else if(scroll_line_v + incr > page_dims.h - ezsdl_get_height() && incr > 0) {
+		scroll_line_v = scroll_line_v + incr + ezsdl_get_height() - (int)page_dims.h;
+		need_redraw = change_page(+1);
+#endif
+ 	} else
+ 		scroll_line_v += incr;
+ 	return need_redraw;
+@@ -849,10 +891,10 @@ int main(int argc, char **argv) {
+ 							need_redraw = change_scale(-10);
+ 							break;
+ 						case INPUT_PGDOWN:
+-							scroll_dist_v += page_dims.h;
+							scroll_dist_v += get_page_bottom();
+ 							break;
+ 						case INPUT_PGUP:
+-							scroll_dist_v -= page_dims.h;
+							scroll_dist_v -= get_page_bottom();
+ 							break;
+ 						case INPUT_UP:
+ 							if((event.mod & KMOD_LCTRL) || (event.mod & KMOD_RCTRL))
+-- 
+2.34.1
+
--- a/package/sdlbook/0007-supress-min-scale-by-max-renderer-pages-dimension.patch
+++ b/package/sdlbook/0007-supress-min-scale-by-max-renderer-pages-dimension.patch
@@ -0,0 +1,27 @@
+From e6260642c7a7228ab928a22608cb9914b2748402 Mon Sep 17 00:00:00 2001
+From: Apaczer <94932128+Apaczer@users.noreply.github.com>
+Date: Tue, 30 Apr 2024 20:41:24 +0200
+Subject: [PATCH 7/7] supress min scale by max renderer pages' dimension
+
+---
+ sdlbook.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/sdlbook.c b/sdlbook.c
+index 5d939e8..7829239 100644
+--- a/sdlbook.c
+++ b/sdlbook.c
+@@ -537,7 +537,9 @@ static int change_page(int incr) {
+ 
+ static int change_scale(int incr) {
+ 	int need_redraw;
+-	if (config_data.scale + incr <= 999 && config_data.scale + incr > 0)
+	if (ezsdl_get_height() > get_page_bottom()*2)
+		config_data.scale += incr > 0 ? incr : 0;
+	else if (config_data.scale + incr <= 999 && config_data.scale + incr > 0)
+ 		config_data.scale += incr;
+ 	else return 0;
+ 	swap_image(prep_pages(&need_redraw));
+-- 
+2.34.1
+
--- a/package/sdlbook/Config.in
+++ b/package/sdlbook/Config.in
@@ -0,0 +1,5 @@
+config BR2_PACKAGE_SDLBOOK
+	bool "sdlbook"
+	help
+	  Simple djvu/pdf/epub ebook viewer based on djvulibre,
+	  libmupdf and SDL 1.2
--- a/package/sdlbook/sdlbook.mk
+++ b/package/sdlbook/sdlbook.mk
@@ -0,0 +1,24 @@
+################################################################################
+#
+# SDLbook
+#
+################################################################################
+
+SDLBOOK_VERSION = d0c4df8edf8df4f96312641ebf4d25d5b0b042fe
+SDLBOOK_SITE_METHOD = git
+SDLBOOK_SITE = https://github.com/rofl0r/SDLBook
+SDLBOOK_DEPENDENCIES = \
+	sdl \
+	djvu \
+	mupdf \
+	tiff
+
+define SDLBOOK_BUILD_CMDS
+	$(MAKE) CC="$(TARGET_CC)" CFLAGS="-DMIYOO -Ofast -DRENDER_ONEPAGE" -C $(@D)
+endef
+
+define SDLBOOK_INSTALL_TARGET_CMDS
+	$(INSTALL) -D -m 0755 $(@D)/sdlbook $(TARGET_DIR)/usr/bin
+endef
+
+$(eval $(generic-package))