> compile NEMU

221220000 张三
Linux zzy 5.15.146.1-microsoft-standard-WSL2 #1 SMP Thu Jan 11 04:09:03 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
 19:51:16 up 7 days, 19:51,  1 user,  load average: 0.13, 0.21, 0.18

nanos-lite/src/proc.c

@@ -26,7 +26,7 @@ void init_proc() {
 
   // load program here
   void naive_uload(PCB *pcb, const char *filename);
-  naive_uload(NULL, "/bin/bmp-test");
+  naive_uload(NULL, "/bin/nslider");
 
 }
 

navy-apps/Makefile

@@ -47,7 +47,7 @@ ARCHIVE  = $(WORK_DIR)/build/$(NAME)-$(ISA).a
 
 ### Add default libraries for ISA != native
 ifneq ($(ISA), native)
-LIBS += libc libos libndl libbmp
+LIBS += libc libos libndl libbmp libminiSDL
 CFLAGS += -U_FORTIFY_SOURCE  # fix compile error in Newlib on ubuntu
 else
 WL = -Wl,
@@ -166,7 +166,7 @@ $(CLEAN_ALL):
 .PHONY: clean-all $(CLEAN_ALL)
 
 ### Build fsimg and ramdisk for Nanos-lite
-APPS =
+APPS = nslider
 TESTS = dummy hello file-test timer-test event-test bmp-test
 
 fsimg: $(addprefix apps/, $(APPS)) $(addprefix tests/, $(TESTS))

navy-apps/apps/nslider/slides/convert.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 
+# sudo vim /etc/ImageMagick-6/policy.xml
 convert slides.pdf \
   -sharpen "0x1.0" \
   -type truecolor -resize 400x300\! slides.bmp

navy-apps/apps/nslider/src/main.cpp

@@ -12,7 +12,7 @@
 //   gg - first page
 
 // number of slides
-const int N = 10;
+const int N = 42;
 // slides path pattern (starts from 0)
 const char *path = "/share/slides/slides-%d.bmp";
 

navy-apps/libs/libminiSDL/src/video.c

@@ -7,12 +7,29 @@
 void SDL_BlitSurface(SDL_Surface *src, SDL_Rect *srcrect, SDL_Surface *dst, SDL_Rect *dstrect) {
   assert(dst && src);
   assert(dst->format->BitsPerPixel == src->format->BitsPerPixel);
+  SDL_Rect rect = {
+    .w = srcrect == NULL ? src->w : srcrect->w,
+    .h = srcrect == NULL ? src->h : srcrect->h,
+    .x = dstrect == NULL ? 0 : dstrect->x,
+    .y = dstrect == NULL ? 0 : dstrect->y,
+  };
+  
+  for (int i = 0; i < rect.h; i ++) {
+    memcpy(dst->pixels + (rect.y + i) * dst->w + rect.x,
+      src->pixels + (srcrect->y + i) * src->w + srcrect->x, rect.w);
+  }
 }
 
 void SDL_FillRect(SDL_Surface *dst, SDL_Rect *dstrect, uint32_t color) {
 }
 
 void SDL_UpdateRect(SDL_Surface *s, int x, int y, int w, int h) {
+  assert(s->format->BitsPerPixel == 32);
+  if (x == 0 && y == 0 && w == 0 && h == 0) {
+    w = s->w;
+    h = s->h;
+  }
+  NDL_DrawRect((uint32_t*)s->pixels, x, y, w, h);
 }
 
 // APIs below are already implemented.