From be691582ee12613278af24cb5a824eeb357f6324 Mon Sep 17 00:00:00 2001
From: Benji Dial <benji@benjidial.net>
Date: Mon, 29 Jul 2024 11:27:22 -0400
Subject: some work on compositor

---
 .../daguerre/include/daguerre/impl/fixed-font.hpp  |  4 +-
 libraries/daguerre/include/daguerre/impl/image.hpp |  2 +-
 libraries/goldman/include/goldman/protocol.hpp     | 85 ++++++++++++++++++++++
 3 files changed, 88 insertions(+), 3 deletions(-)
 create mode 100644 libraries/goldman/include/goldman/protocol.hpp

(limited to 'libraries')

diff --git a/libraries/daguerre/include/daguerre/impl/fixed-font.hpp b/libraries/daguerre/include/daguerre/impl/fixed-font.hpp
index dbff798..1a5f3d8 100644
--- a/libraries/daguerre/include/daguerre/impl/fixed-font.hpp
+++ b/libraries/daguerre/include/daguerre/impl/fixed-font.hpp
@@ -20,7 +20,7 @@ namespace daguerre {
   template <class color_t>
   fixed_font<color_t>::fixed_font(fixed_font<color_t> &&other)
     : glyph_width(other.glyph_width), glyph_height(other.glyph_height) {
-      for (int i = 0; 0 < 128; ++i)
+      for (int i = 0; i < 128; ++i)
         glyphs[i] = std::move(other.glyphs[i]);
       other.glyph_width = 0;
       other.glyph_height = 0;
@@ -31,7 +31,7 @@ namespace daguerre {
     fixed_font<color_t> &&other) {
     glyph_width = other.glyph_width;
     glyph_height = other.glyph_height;
-    for (int i = 0; 0 < 128; ++i)
+    for (int i = 0; i < 128; ++i)
       glyphs[i] = std::move(other.glyphs[i]);
     other.glyph_width = 0;
     other.glyph_height = 0;
diff --git a/libraries/daguerre/include/daguerre/impl/image.hpp b/libraries/daguerre/include/daguerre/impl/image.hpp
index 1264879..9160951 100644
--- a/libraries/daguerre/include/daguerre/impl/image.hpp
+++ b/libraries/daguerre/include/daguerre/impl/image.hpp
@@ -185,7 +185,7 @@ namespace daguerre {
     const param_t &param, const image<other_color_t> &other, int to_x,
     int to_y, param_converter_t<color_t, other_color_t, param_t> *conversion) {
     convert_from(
-      param, other, to_x, to_y, 0, 0, other.width, other.y, conversion);
+      param, other, to_x, to_y, 0, 0, other.width, other.height, conversion);
   }
 
   template <class color_t>
diff --git a/libraries/goldman/include/goldman/protocol.hpp b/libraries/goldman/include/goldman/protocol.hpp
new file mode 100644
index 0000000..b7f4d51
--- /dev/null
+++ b/libraries/goldman/include/goldman/protocol.hpp
@@ -0,0 +1,85 @@
+#pragma once
+
+#include <euler/syscall.hpp>
+#include <memory>
+
+//TODO: handle stream errors, make thread safe
+
+namespace goldman::protocol {
+
+  typedef euler::syscall::encoded_color color;
+  typedef uint16_t window;
+
+  static inline void send_open_window(
+    euler::syscall::stream_handle socket, uint32_t width, uint32_t height) {
+
+    struct [[gnu::packed]] {
+      uint8_t type;
+      uint32_t width;
+      uint32_t height;
+    } packet {
+      .type = 0x00,
+      .width = width,
+      .height = height
+    };
+
+    euler::syscall::write_to_stream(socket, sizeof(packet), &packet);
+
+  }
+
+  void send_update_window_region(
+    euler::syscall::stream_handle socket, window the_window,
+    uint32_t start_x, uint32_t start_y, uint32_t width,
+    uint32_t height, const color *the_data, size_t data_pitch) {
+
+    struct [[gnu::packed]] {
+      uint8_t type;
+      window the_window;
+      uint32_t start_x;
+      uint32_t start_y;
+      uint32_t width;
+      uint32_t height;
+    } packet_head {
+      .type = 0x01,
+      .the_window = the_window,
+      .start_x = start_x,
+      .start_y = start_y,
+      .width = width,
+      .height = height
+    };
+
+    euler::syscall::write_to_stream(socket, sizeof(packet_head), &packet_head);
+    for (uint32_t y = 0; y < height; ++y)
+      euler::syscall::write_to_stream(
+        socket, width * sizeof(color), the_data + data_pitch * y);
+
+  }
+
+  void send_close_window(
+    euler::syscall::stream_handle socket, window the_window) {
+
+    struct [[gnu::packed]] {
+      uint8_t type;
+      window the_window;
+    } packet {
+      .type = 0x02,
+      .the_window = the_window
+    };
+
+    euler::syscall::write_to_stream(socket, sizeof(packet), &packet);
+
+  }
+
+  enum class response_id : uint8_t {
+    window_opened
+  };
+
+  window get_window_opened_body(euler::syscall::stream_handle socket) {
+
+    window w;
+    euler::syscall::read_from_stream(socket, sizeof(w), &w);
+    return w;
+
+  }
+
+}
-- 
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