81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
#ifndef YAZE_APP_CORE_PLATFORM_RENDERER_H
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#define YAZE_APP_CORE_PLATFORM_RENDERER_H
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#include <SDL.h>
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#include <memory>
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#include "absl/status/status.h"
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#include "absl/strings/str_format.h"
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#include "app/core/platform/sdl_deleter.h"
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#include "app/gfx/bitmap.h"
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namespace yaze {
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namespace core {
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/**
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* @class Renderer
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* @brief The Renderer class represents the renderer for the Yaze application.
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*
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* This class is a singleton that provides functionality for creating and
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* rendering bitmaps to the screen. It also includes methods for updating
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* bitmaps on the screen.
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*/
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class Renderer {
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public:
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static Renderer &GetInstance() {
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static Renderer instance;
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return instance;
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}
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absl::Status CreateRenderer(SDL_Window *window) {
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renderer_ = std::unique_ptr<SDL_Renderer, SDL_Deleter>(
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SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED));
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if (renderer_ == nullptr) {
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return absl::InternalError(
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absl::StrFormat("SDL_CreateRenderer: %s\n", SDL_GetError()));
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}
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SDL_SetRenderDrawBlendMode(renderer_.get(), SDL_BLENDMODE_BLEND);
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SDL_SetRenderDrawColor(renderer_.get(), 0x00, 0x00, 0x00, 0x00);
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return absl::OkStatus();
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}
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auto renderer() -> SDL_Renderer * { return renderer_.get(); }
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void RenderBitmap(gfx::Bitmap *bitmap) {
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bitmap->CreateTexture(renderer_.get());
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}
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void UpdateBitmap(gfx::Bitmap *bitmap) {
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bitmap->UpdateTexture(renderer_.get());
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}
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void CreateAndRenderBitmap(int width, int height, int depth,
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const std::vector<uint8_t> &data,
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gfx::Bitmap &bitmap, gfx::SnesPalette &palette) {
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bitmap.Create(width, height, depth, data);
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bitmap.SetPalette(palette);
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RenderBitmap(&bitmap);
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}
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void Clear() {
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SDL_SetRenderDrawColor(renderer_.get(), 0x00, 0x00, 0x00, 0x00);
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SDL_RenderClear(renderer_.get());
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}
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void Present() { SDL_RenderPresent(renderer_.get()); }
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private:
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Renderer() = default;
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std::unique_ptr<SDL_Renderer, SDL_Deleter> renderer_;
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Renderer(const Renderer &) = delete;
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Renderer &operator=(const Renderer &) = delete;
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};
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} // namespace core
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} // namespace yaze
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#endif
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