Merge 860b852e4e into a3792d94dc

fusee/fusee-secondary/Makefile

@@ -11,6 +11,7 @@ name := fusee-secondary
 dir_source := src
 dir_build := build
 dir_out := out
+dir_data := data
 
 ARCH := -march=armv4t -mtune=arm7tdmi -marm
 
@@ -34,7 +35,8 @@ LDFLAGS = -specs=linker.specs -g $(ARCH)
 
 objects =	$(patsubst $(dir_source)/%.s, $(dir_build)/%.o, \
 			$(patsubst $(dir_source)/%.c, $(dir_build)/%.o, \
-			$(call rwildcard, $(dir_source), *.s *.c)))
+			$(call rwildcard, $(dir_source), *.s *.c))) \
+			$(dir_build)/default_splash.bmp.o
 
 define bin2o
 	bin2s $< | $(AS) -o $(@)
@@ -58,6 +60,9 @@ $(dir_build)/$(name).elf: $(objects)
 $(dir_build)/%.bin.o: $(dir_build)/%.bin
 	@$(bin2o)
 
+$(dir_build)/default_splash.bmp.o: $(dir_data)/default_splash.bmp
+	@$(bin2o)
+
 $(dir_build)/%.o: $(dir_source)/%.c
 	@mkdir -p "$(@D)"
 	$(COMPILE.c) $(OUTPUT_OPTION) $<
@@ -65,3 +70,5 @@ $(dir_build)/%.o: $(dir_source)/%.c
 $(dir_build)/%.o: $(dir_source)/%.s
 	@mkdir -p "$(@D)"
 	$(COMPILE.c) -x assembler-with-cpp $(OUTPUT_OPTION) $<
+
+	

fusee/fusee-secondary/src/main.c

@@ -13,6 +13,7 @@
 #include "switch_fs.h"
 #include "gpt.h"
 #include "display/video_fb.h"
+#include "splash_screen.h"
 
 extern void (*__program_exit_callback)(int rc);
 
@@ -78,7 +79,7 @@ int main(int argc, void **argv) {
 
     g_do_nxboot = loader_ctx->chainload_entrypoint == 0;
     if (g_do_nxboot) {
-        nxboot_main();
+        nxboot_main((uint8_t*)g_framebuffer);
     } else {
         /* TODO: What else do we want to do in terms of argc/argv? */
         const char *path = get_loader_ctx()->file_paths[get_loader_ctx()->file_id_of_entrypoint];

fusee/fusee-secondary/src/nxboot.c

@@ -46,7 +46,7 @@ void nxboot_configure_exosphere(void) {
 }
 
 /* This is the main function responsible for booting Horizon. */
-void nxboot_main(void) {
+void nxboot_main(uint8_t *fb_addr) {
     loader_ctx_t *loader_ctx = get_loader_ctx();
 
     /* TODO: Validate that we're capable of booting. */
@@ -87,7 +87,7 @@ void nxboot_main(void) {
     }
 
     /* Display splash screen. */
-    display_splash_screen_bmp(loader_ctx->custom_splash_path);
+    display_splash_screen_bmp(loader_ctx->custom_splash_path, fb_addr);
 
     /* TODO: Halt ourselves. */
 }

fusee/fusee-secondary/src/nxboot.h

@@ -22,6 +22,6 @@
 
 #define MAILBOX_NX_BOOTLOADER_BOOT_REASON (MAILBOX_NX_BOOTLOADER_BASE + 0xE10ULL)
 
-void nxboot_main(void);
+void nxboot_main(uint8_t *fb_addr);
 
 #endif

fusee/fusee-secondary/src/splash_screen.c

@@ -1,20 +1,59 @@
 #include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
 #include "utils.h"
 #include "timers.h"
 #include "splash_screen.h"
 #include "sd_utils.h"
 #include "display/video_fb.h"
 
-void display_splash_screen_bmp(const char *custom_splash_path) {
-    uint8_t *splash_screen = g_default_splash_screen;
-    if (custom_splash_path != NULL && custom_splash_path[0] != '\x00') {
-        if (!read_sd_file(splash_screen, sizeof(g_default_splash_screen), custom_splash_path)) {
-            printf("Error: Failed to read custom splash screen from %s!\n", custom_splash_path);
-            generic_panic();
+uint8_t *load_default_splash() {
+    printf("Failed to read custom splash. Falling back to default splash");
+    uint8_t *buffer = calloc(default_splash_bmp_size, sizeof(uint8_t));
+    memcpy(buffer, default_splash_bmp, default_splash_bmp_size);
+    return buffer;
+}
+
+void display_splash_screen_bmp(const char *custom_splash_path, uint8_t* fb_addr) {
+    /* Cast the framebuffer to a 2-dimensional array, for easy addressing */
+    uint8_t (*fb)[3072] = (uint8_t(*)[3072])fb_addr;
+
+    uint8_t *splash_screen = NULL;
+
+    /* Stat the splash file to set size information, and see if it's there */
+    struct stat info;
+    if (!stat(custom_splash_path, &info)) {
+        /* Prepare the buffer */
+        splash_screen = calloc(info.st_size, sizeof(uint8_t));
+
+        /* Read the BMP from the SD card */
+        if (!read_sd_file(splash_screen, info.st_size, custom_splash_path)) {
+            splash_screen = load_default_splash();
+        }
+    } else {
+        splash_screen = load_default_splash();
+    }
+
+    /* BMP pixel data offset (dword @ 0xA) */
+    int data_offset = (splash_screen[0xA] & 0xFF) |
+        ((splash_screen[0xB] & 0xFF00) << 8) |
+        ((splash_screen[0xC] & 0xFF0000) << 16) |
+        ((splash_screen[0xD] & 0xFF000000) << 24);
+
+    int count = 0;
+    for (int y = 719; y >= 0; y--) {
+        for (int x = 1280; x > 0; x--) {
+            /* Fill the framebuffer w/ necessary pixel format translations (framebuffer is RGBA, BMP is BGRA) */
+            fb[x][y * 4] = splash_screen[data_offset + count + 2];
+            fb[x][y * 4 + 1] = splash_screen[data_offset + count + 1];
+            fb[x][y * 4 + 2] = splash_screen[data_offset + count];
+            fb[x][y * 4 + 3] = splash_screen[data_offset + count + 3];
+            count += 4;
         }
     }
 
-    /* TODO: Display the splash screen. It should be a pointer to a BMP, at this point. */
+    /* Free the splash buffer; we're done with it. */
+    free(splash_screen);
 
     /* Display the splash screen for three seconds. */
     wait(3000000);

fusee/fusee-secondary/src/splash_screen.h

@@ -3,9 +3,10 @@
 
 #include <stdint.h>
 
-/* TODO: Actually make this a real thing. */
-extern unsigned char g_default_splash_screen[1];
+extern uint8_t default_splash_bmp[];
+extern uint32_t default_splash_bmp_size;
 
-void display_splash_screen_bmp(const char *custom_splash_path);
+void display_splash_screen_bmp(const char *custom_splash_path, uint8_t *fb_addr);
+uint8_t *load_default_splash();
 
 #endif

fusee/fusee-secondary/src/splash_screen_default.c

@@ -1,3 +0,0 @@
-#include "splash_screen.h"
-
-uint8_t g_default_splash_screen[1] = {0};