From fbfc078e9f44c1c1e95c9c484f1d5650bcf631b7 Mon Sep 17 00:00:00 2001
From: Benji Dial <benji@benjidial.net>
Date: Sat, 27 Jul 2024 16:57:39 -0400
Subject: lots and lots of userspace stuff

---
 applications/goldman/makefile        |  2 +-
 applications/goldman/source/main.cpp | 79 +++++++++++++++++++++++++++++++++++-
 applications/init/source/main.cpp    | 22 ++++------
 3 files changed, 85 insertions(+), 18 deletions(-)

(limited to 'applications')

diff --git a/applications/goldman/makefile b/applications/goldman/makefile
index 5b93fe4..56f633d 100644
--- a/applications/goldman/makefile
+++ b/applications/goldman/makefile
@@ -6,7 +6,7 @@ build/%.cpp.o: source/%.cpp
 	$(HILBERT_CC) -c $^ -o $@
 
 build/goldman.elf: $(SOURCES:%=build/%.o)
-	$(HILBERT_CC) $^ -o $@
+	$(HILBERT_CC) $^ -ldaguerre -o $@
 
 clean:
 	rm -rf build
diff --git a/applications/goldman/source/main.cpp b/applications/goldman/source/main.cpp
index 28ed00a..d74eaad 100644
--- a/applications/goldman/source/main.cpp
+++ b/applications/goldman/source/main.cpp
@@ -1,4 +1,79 @@
+#include <daguerre/framebuffer.hpp>
+#include <daguerre/ppm.hpp>
+
+daguerre::hilbert_color trans_color;
+
+void convert_pointer(
+  daguerre::hilbert_color &dest, const daguerre::hilbert_color &src) {
+  if (src != trans_color)
+    dest = src;
+}
+
 int main(int, char **) {
-  while (1)
-    ;
+
+  trans_color = euler::syscall::encode_color(0xff, 0x00, 0xff);
+
+  daguerre::image<daguerre::hilbert_color> framebuffer =
+    daguerre::get_hilbert_framebuffer();
+
+  int fw = framebuffer.width;
+  int fh = framebuffer.height;
+
+  daguerre::image<daguerre::hilbert_color> double_buffer(fw, fh);
+
+  std::optional<daguerre::image<daguerre::hilbert_color>>
+    background_original = daguerre::try_load_ppm("/assets/background.ppm");
+
+  daguerre::image<daguerre::hilbert_color> background;
+
+  if (background_original.has_value())
+    background = background_original->stretch(fw, fh);
+  else {
+    background = daguerre::image<daguerre::hilbert_color>(fw, fh);
+    background.fill(euler::syscall::encode_color(0, 0, 0));
+  }
+
+  std::optional<daguerre::image<daguerre::hilbert_color>>
+    pointer_original = daguerre::try_load_ppm("/assets/pointer.ppm");
+
+  if (!pointer_original.has_value())
+    //TODO
+    while (1)
+      ;
+
+  daguerre::image<daguerre::hilbert_color>
+    pointer = std::move(*pointer_original);
+
+  int mouse_x = fw / 2;
+  int mouse_y = fh / 2;
+
+  while (true) {
+
+    double_buffer.copy_from(background, 0, 0);
+    double_buffer.convert_from(pointer, mouse_x, mouse_y, 0, 0,
+      std::min(pointer. width, double_buffer. width - mouse_x),
+      std::min(pointer.height, double_buffer.height - mouse_y),
+      &convert_pointer);
+
+    framebuffer.copy_from(double_buffer, 0, 0);
+
+    auto result = euler::syscall::get_input_packet();
+    if (std::holds_alternative<euler::syscall::mouse_packet>(result)) {
+      const auto &packet = std::get<euler::syscall::mouse_packet>(result);
+      mouse_x += packet.x_changed;
+      mouse_y += packet.y_changed;
+      if (mouse_x < 0)
+        mouse_x = 0;
+      else if (mouse_x >= fw)
+        mouse_x = fw - 1;
+      if (mouse_y < 0)
+        mouse_y = 0;
+      else if (mouse_y >= fh)
+        mouse_y = fh - 1;
+    }
+
+  }
+
+  return 0;
+
 }
diff --git a/applications/init/source/main.cpp b/applications/init/source/main.cpp
index 5dfa81a..ca137a4 100644
--- a/applications/init/source/main.cpp
+++ b/applications/init/source/main.cpp
@@ -1,19 +1,11 @@
-#include <euler/start_process.hpp>
+#include <euler/syscall.hpp>
 
-int main(int, char **) {
-
-  __euler_process_handle dummy;
-
-  euler::start_process wm_process("/bin/compositor");
-  wm_process.add_env_variable("ARGC", "1");
-  wm_process.add_env_variable("ARGV0", "/bin/compositor");
-  wm_process.start(dummy);
-
-  euler::start_process hello_process("/bin/hello");
-  hello_process.add_env_variable("ARGC", "1");
-  hello_process.add_env_variable("ARGV0", "/bin/hello");
-  hello_process.start(dummy);
+//this does not keep track of the processes or whether they have started
+//successfully, nor does it set their argc, argv, stdin, stdout, or stderr.
 
+int main(int, char **) {
+  euler::syscall::process_handle dummy;
+  euler::syscall::start_process("/bin/compositor", {}, {}, dummy);
+  euler::syscall::start_process("/bin/hello", {}, {}, dummy);
   return 0;
-
 }
-- 
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