first commit!

very messy implementation of a simple FB splash for postmarketOS.

.gitignore

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+build/

.gitmodules

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+[submodule "tfblib"]
+	path = tfblib
+	url = https://github.com/calebccff/tfblib

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.10)
+
+# set the project name
+project(pbsplash)
+
+# add the executable
+add_executable(pbsplash pbsplash.c)
+
+include_directories(tfblib/include)
+
+add_subdirectory(tfblib)
+
+target_link_libraries(pbsplash tfb)

logo.h

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+const float logo[] = {
+        // Top
+        50, 00, 35, 30, // top to left
+        35, 30, 38, 42, // top left point left
+        38, 42, 50, 40, // top left point right
+        50, 40, 67, 75, // top to right inside
+        67, 75, 70, 63,
+        70, 63, 83, 65,
+        83, 65, 50, 00, // top to right
+        // Bottom left
+        32, 35, 0, 100,
+        0, 100, 30, 100,
+        30, 100, 35, 90,
+        35, 90, 30, 80,
+        30, 80, 45, 45,
+        45, 45, 35, 47,
+        35, 47, 32, 35,
+        // Bottom right
+        35, 80, 40, 90,
+        40, 90, 35, 100,
+        35, 100, 100, 100,
+        100, 100, 85, 70,
+        85, 70, 73, 68,
+        73, 68, 70, 80,
+        70, 80, 35, 80,
+};

pbsplash.c

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+#include <stdio.h>
+#include <tfblib/tfblib.h>
+#include <tfblib/tfb_colors.h>
+#include <unistd.h>
+
+#include "logo.h"
+
+int main(int argc, char **argv)
+{
+   int rc;
+   if ((rc = tfb_acquire_fb(TFB_FL_USE_DOUBLE_BUFFER, "/dev/fb0", "/dev/tty1")) != TFB_SUCCESS) {
+      fprintf(stderr, "tfb_acquire_fb() failed with error code: %d\n", rc);
+      return 1;
+   }
+
+   int w = (int) tfb_screen_width();
+   int h = (int) tfb_screen_height();
+   int sz = (float)(w < h ? w : h) * 0.5;
+   fprintf(stdout, "w=%du, h=%du\n", w, h);
+   float x = (float)w / 2 - sz / 2;
+   float y = (float)h / 2 - sz / 2 - 300;
+   float textX = x;
+   float textY = y;
+
+   while(true) {
+      /* Paint the whole screen in black */
+      tfb_clear_screen(tfb_black);
+      /* Draw a red rectangle at the center of the screen */
+      /* Draw some text on-screen */
+      tfb_draw_string_scaled(x + 75, y + sz + 40, tfb_white, tfb_black, 4, 4, "postmarketOS");
+
+      for (size_t i = 0; i < sizeof(logo) / sizeof(logo[0]); i+=4)
+      {
+         int x1 = (int) (logo[i] / 100 * sz) + (int)x;
+         int y1 = (int) (logo[i+1] / 100 * sz) + (int)y;
+         int x2 = (int) (logo[i+2] / 100 * sz) + (int)x;
+         int y2 = (int) (logo[i+3] / 100 * sz) + (int)y;
+         //printf("%f == ", logo[i] / 100 * w);
+         printf("x1: %d, y1: %d, x2: %d, y2: %d\n", x1, y1, x1, y2);
+         tfb_draw_line(x1, y1, x2, y2, tfb_green);
+      }
+
+      tfb_flush_window();
+      tfb_flush_fb();
+      usleep(50000);
+   }
+
+   getchar();
+   tfb_release_fb();
+   return 0;
+}

tfblib

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+Subproject commit 69389193fcf1c4d632febcfa0d3bdd99eb1ae2b7