From e60fa7740cd7d245d1b22a25fea9df0768d32668 Mon Sep 17 00:00:00 2001
From: Benji Dial <benji@benjidial.net>
Date: Sun, 19 May 2024 04:34:40 -0400
Subject: mouse support (working in qemu, semi-working in virtualbox)

---
 libraries/daguerre/include/daguerre.hpp | 34 +++++++++++++++------------------
 libraries/daguerre/source/daguerre.cpp  | 15 +++++++++++----
 2 files changed, 26 insertions(+), 23 deletions(-)

(limited to 'libraries/daguerre')

diff --git a/libraries/daguerre/include/daguerre.hpp b/libraries/daguerre/include/daguerre.hpp
index 274e257..62d10f0 100644
--- a/libraries/daguerre/include/daguerre.hpp
+++ b/libraries/daguerre/include/daguerre.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <stdint.h>
+#include <cstring>
 #include <cstdio>
 
 namespace daguerre {
@@ -13,14 +14,6 @@ namespace daguerre {
     uint8_t b;
   };
 
-  template <class to_type, class from_type>
-  to_type convert_color(const from_type &from);
-
-  template <>
-  inline hilbert_color convert_color<hilbert_color, rgb24>(const rgb24 &from) {
-    return __euler_encode_color(from.r, from.g, from.b);
-  }
-
   template <class color_t>
   class image {
 
@@ -88,15 +81,15 @@ namespace daguerre {
   //from [from_x, from_x + width) x [from_y, from_y + height).
   template <class color_t>
   void copy_region(
-    image<color_t> &to, const image<color_t> &from, unsigned from_x,
-    unsigned from_y, unsigned to_x, unsigned to_y, unsigned width,
-    unsigned height) {
+    image<color_t> &to, unsigned to_x, unsigned to_y,
+    const image<color_t> &from, unsigned from_x, unsigned from_y,
+    unsigned width, unsigned height) {
 
     color_t *to_start = to.buffer + to.pitch * to_y + to_x;
     const color_t *from_start = from.buffer + from.pitch * from_y + from_x;
 
     for (unsigned y = 0; y < height; ++y)
-      memcpy(
+      std::memcpy(
         to_start + to.pitch * y, from_start + from.pitch * y,
         width * sizeof(color_t));
 
@@ -107,12 +100,11 @@ namespace daguerre {
   //from [from_x, from_x + width) x [from_y, from_y + height).
   template <
     class to_color_t, class from_color_t,
-    to_color_t converter(const from_color_t &) =
-      convert_color<to_color_t, from_color_t>>
-  void copy_region(
-    image<to_color_t> &to, const image<from_color_t> &from, unsigned from_x,
-    unsigned from_y, unsigned to_x, unsigned to_y, unsigned width,
-    unsigned height) {
+    void overlay(to_color_t &dest, const from_color_t &src)>
+  void overlay_region(
+    image<to_color_t> &to, unsigned to_x, unsigned to_y,
+    const image<from_color_t> &from, unsigned from_x, unsigned from_y,
+    unsigned width, unsigned height) {
 
     to_color_t *to_start = to.buffer + to.pitch * to_y + to_x;
     const from_color_t *from_start =
@@ -120,8 +112,12 @@ namespace daguerre {
 
     for (unsigned y = 0; y < height; ++y)
       for (unsigned x = 0; x < width; ++x)
-        to_start[to.pitch * y + x] = converter(from_start[from.pitch * y + x]);
+        overlay(to_start[to.pitch * y + x], from_start[from.pitch * y + x]);
+
+  }
 
+  static inline void encode(hilbert_color &dest, const rgb24 &src) {
+    dest = __euler_encode_color(src.r, src.g, src.b);
   }
 
   image<hilbert_color> get_hilbert_framebuffer();
diff --git a/libraries/daguerre/source/daguerre.cpp b/libraries/daguerre/source/daguerre.cpp
index fb3ddc7..7c13a88 100644
--- a/libraries/daguerre/source/daguerre.cpp
+++ b/libraries/daguerre/source/daguerre.cpp
@@ -8,15 +8,22 @@ namespace daguerre {
     return image<hilbert_color>(ptr, width, height, pitch, false);
   }
 
+  //TODO: make this more robust
   unsigned read_text_int(std::FILE *input) {
     unsigned n = 0;
     char ch;
-    while (true) {
+    std::fread(&ch, 1, 1, input);
+    if (ch == '#') {
+      do
+        std::fread(&ch, 1, 1, input);
+      while (ch != '\n');
       std::fread(&ch, 1, 1, input);
-      if (ch < '0' || ch > '9')
-        return n;
-      n = n * 10 + ch - '0';
     }
+    do {
+      n = n * 10 + ch - '0';
+      std::fread(&ch, 1, 1, input);
+    } while (ch >= '0' && ch <= '9');
+    return n;
   }
 
   bool try_load_ppm(std::FILE *input, image<rgb24> &into) {
-- 
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