Refactor Bitmap class for improved data handling

- Removed unused data_size_ member and updated size() method to return the size of data_ directly.
- Simplified data size checks in Create method to enhance clarity.
- Updated UpdateTexture method to use memcpy for pixel data assignment, improving performance.
- Ensured WriteToPixel method updates both pixel_data_ and data_ for consistency in modifications.

src/app/gfx/bitmap.cc

@@ -6,7 +6,6 @@
 #endif
 
 #include <cstdint>
-#include <future>
 
 #include "app/gfx/arena.h"
 #include "app/gfx/snes_palette.h"
@@ -230,12 +229,11 @@ void Bitmap::Create(int width, int height, int depth, int format,
   width_ = width;
   height_ = height;
   depth_ = depth;
-  data_size_ = data.size();
-  if (data_size_ == 0) {
+  if (data.size() == 0) {
     SDL_Log("Data provided to Bitmap is empty.\n");
     return;
   }
-  data_.reserve(data_size_);
+  data_.reserve(data.size());
   data_ = data;
   pixel_data_ = data_.data();
   surface_ = Arena::Get().AllocateSurface(width_, height_, depth_,
@@ -263,6 +261,7 @@ void Bitmap::UpdateTexture(SDL_Renderer *renderer) {
     CreateTexture(renderer);
     return;
   }
+  memcpy(surface_->pixels, data_.data(), data_.size());
   Arena::Get().UpdateTexture(texture_, surface_);
 }
 
@@ -379,6 +378,7 @@ void Bitmap::WriteToPixel(int position, uint8_t value) {
     pixel_data_ = data_.data();
   }
   pixel_data_[position] = value;
+  data_[position] = value;
   modified_ = true;
 }
 

src/app/gfx/bitmap.h

@@ -151,7 +151,7 @@ class Bitmap {
   int width() const { return width_; }
   int height() const { return height_; }
   int depth() const { return depth_; }
-  int size() const { return data_size_; }
+  int size() const { return data_.size(); }
   const uint8_t *data() const { return data_.data(); }
   std::vector<uint8_t> &mutable_data() { return data_; }
   SDL_Surface *surface() const { return surface_; }
@@ -172,7 +172,6 @@ class Bitmap {
   int width_ = 0;
   int height_ = 0;
   int depth_ = 0;
-  int data_size_ = 0;
 
   bool active_ = false;
   bool modified_ = false;

src/app/gfx/snes_color.h

@@ -40,7 +40,7 @@ class SnesColor {
   constexpr SnesColor()
       : rgb_({0.f, 0.f, 0.f, 0.f}), snes_(0), rom_color_({0, 0, 0}) {}
 
-  constexpr explicit SnesColor(const ImVec4 val) : rgb_(val) {
+  explicit SnesColor(const ImVec4 val) : rgb_(val) {
     snes_color color;
     color.red = static_cast<uint8_t>(val.x) / kColorByteMax;
     color.green = static_cast<uint8_t>(val.y) / kColorByteMax;
@@ -48,7 +48,7 @@ class SnesColor {
     snes_ = ConvertRgbToSnes(color);
   }
 
-  constexpr explicit SnesColor(const uint16_t val) : snes_(val) {
+  explicit SnesColor(const uint16_t val) : snes_(val) {
     snes_color color = ConvertSnesToRgb(val);
     rgb_ = ImVec4(color.red, color.green, color.blue, 0.f);
   }