More organization.

sfw/render_immediate/renderer.cpp

@@ -0,0 +1,369 @@
+#include "renderer.h"
+
+#include <cstdio>
+
+#include "core/math.h"
+
+void Renderer::present() {
+	SDL_RenderPresent(_renderer);
+}
+
+void Renderer::set_draw_color(const Uint8 r, const Uint8 g, const Uint8 b, const Uint8 a) {
+	SDL_SetRenderDrawColor(_renderer, r, g, b, a);
+}
+
+void Renderer::set_draw_color(const Color &color) {
+	SDL_SetRenderDrawColor(_renderer, color.r, color.g, color.b, color.a);
+}
+
+void Renderer::clear() {
+	SDL_RenderClear(_renderer);
+}
+
+SDL_BlendMode Renderer::get_blend_mode() const {
+	SDL_BlendMode mode;
+	SDL_GetRenderDrawBlendMode(_renderer, &mode);
+
+	return mode;
+}
+void Renderer::set_blend_mode(const SDL_BlendMode mode) {
+	SDL_SetRenderDrawBlendMode(_renderer, mode);
+}
+
+void Renderer::draw_point(const int x, const int y) {
+	SDL_RenderDrawPoint(_renderer, x, y);
+}
+void Renderer::draw_point(const float x, const float y) {
+	SDL_RenderDrawPointF(_renderer, x, y);
+}
+
+void Renderer::draw_line(const int x1, const int x2, const int y1, const int y2) {
+	SDL_RenderDrawLine(_renderer, x1, x2, y1, y2);
+}
+void Renderer::draw_line(const float x1, const float x2, const float y1, const float y2) {
+	SDL_RenderDrawLineF(_renderer, x1, x2, y1, y2);
+}
+
+void Renderer::draw_rect(const Rect2 &rect) {
+	SDL_Rect r = rect.as_rect();
+
+	SDL_RenderDrawRect(_renderer, &r);
+}
+
+void Renderer::draw_fill_rect(const Rect2 &rect) {
+	SDL_Rect r = rect.as_rect();
+
+	SDL_RenderFillRect(_renderer, &r);
+}
+
+void Renderer::draw_texture(const Texture &texture, const Rect2 &dst_rect) {
+	SDL_Rect sr;
+
+	sr.x = 0;
+	sr.y = 0;
+	sr.w = texture.get_width();
+	sr.h = texture.get_height();
+
+	SDL_Rect dr = dst_rect.as_rect();
+
+	SDL_RenderCopy(_renderer, texture.get_texture(), &sr, &dr);
+}
+void Renderer::draw_texture(const Texture &texture, const Rect2 &src_rect, const Rect2 &dst_rect) {
+	SDL_Rect sr = src_rect.as_rect();
+	SDL_Rect dr = dst_rect.as_rect();
+
+	SDL_RenderCopy(_renderer, texture.get_texture(), &sr, &dr);
+}
+void Renderer::draw_texture(const Texture &texture, const Rect2 &src_rect, const Rect2 &dst_rect, const double angle, const float cx, const float cy, const SDL_RendererFlip flip) {
+	SDL_Rect sr = src_rect.as_rect();
+	SDL_FRect dr = dst_rect.as_frect();
+
+	SDL_FPoint p;
+
+	p.x = cx;
+	p.y = cy;
+
+	SDL_RenderCopyExF(_renderer, texture.get_texture(), &sr, &dr, angle, &p, flip);
+}
+
+void Renderer::draw_sprite(const Sprite &sprite) {
+	Texture *t = sprite.get_texture();
+
+	if (!t) {
+		return;
+	}
+
+	t->set_color_mod(sprite.get_color_mod());
+
+	double angle = sprite.get_angle();
+
+	if (Math::is_zero_approx(angle)) {
+		SDL_Rect sr = sprite.get_texture_clip_rect().as_rect();
+		SDL_Rect dr = sprite.get_transform().as_rect();
+
+		SDL_RenderCopy(_renderer, t->get_texture(), &sr, &dr);
+	} else {
+		SDL_Rect sr = sprite.get_texture_clip_rect().as_rect();
+		SDL_FRect dr = sprite.get_transform().as_frect();
+
+		SDL_FPoint p;
+
+		p.x = sprite.get_anchor_x();
+		p.y = sprite.get_anchor_y();
+
+		SDL_RenderCopyExF(_renderer, t->get_texture(), &sr, &dr, angle, &p, sprite.get_flip());
+	}
+}
+
+void Renderer::draw_sprite(const Sprite *sprite) {
+	if (!sprite)
+		return;
+
+	Texture *t = sprite->get_texture();
+
+	if (!t) {
+		return;
+	}
+
+	t->set_color_mod(sprite->get_color_mod());
+
+	double angle = sprite->get_angle();
+
+	if (Math::is_zero_approx(angle)) {
+		SDL_Rect sr = sprite->get_texture_clip_rect().as_rect();
+		SDL_Rect dr = sprite->get_transform().as_rect();
+
+		SDL_RenderCopy(_renderer, t->get_texture(), &sr, &dr);
+	} else {
+		SDL_Rect sr = sprite->get_texture_clip_rect().as_rect();
+		SDL_FRect dr = sprite->get_transform().as_frect();
+
+		SDL_FPoint p;
+
+		p.x = sprite->get_anchor_x();
+		p.y = sprite->get_anchor_y();
+
+		SDL_RenderCopyExF(_renderer, t->get_texture(), &sr, &dr, angle, &p, sprite->get_flip());
+	}
+}
+
+int Renderer::get_dpi() const {
+	float ddpi;
+	float hdpi;
+	float vdpi;
+
+	if (SDL_GetDisplayDPI(_window_display_index, &ddpi, &hdpi, &vdpi)) {
+		return ddpi;
+	}
+
+	//fallback
+	return 1;
+}
+
+int Renderer::get_window_size_w() const {
+	int w;
+	int h;
+
+	SDL_GetWindowSize(_window, &w, &h);
+
+	return w;
+}
+
+int Renderer::get_window_size_h() const {
+	int w;
+	int h;
+
+	SDL_GetWindowSize(_window, &w, &h);
+
+	return h;
+}
+
+int Renderer::get_size_w() const {
+	int w;
+	int h;
+
+	SDL_RenderGetLogicalSize(_renderer, &w, &h);
+
+	return w;
+}
+
+int Renderer::get_size_h() const {
+	int w;
+	int h;
+
+	SDL_RenderGetLogicalSize(_renderer, &w, &h);
+
+	return h;
+}
+
+void Renderer::get_size(int *w, int *h) const {
+	SDL_RenderGetLogicalSize(_renderer, w, h);
+}
+
+void Renderer::set_size(const int w, const int h) const {
+	SDL_RenderSetLogicalSize(_renderer, w, h);
+}
+
+float Renderer::get_scale_w() const {
+	float w;
+	float h;
+
+	SDL_RenderGetScale(_renderer, &w, &h);
+
+	return w;
+}
+float Renderer::get_scale_h() const {
+	float w;
+	float h;
+
+	SDL_RenderGetScale(_renderer, &w, &h);
+
+	return h;
+}
+void Renderer::set_scale(const float w, const float h) const {
+	SDL_RenderSetScale(_renderer, w, h);
+}
+void Renderer::get_scale(float *w, float *h) const {
+	SDL_RenderGetScale(_renderer, w, h);
+}
+
+bool Renderer::get_integer_scaling() const {
+	return SDL_RenderGetIntegerScale(_renderer);
+}
+void Renderer::set_integer_scaling(const bool enable) {
+	if (enable)
+		SDL_RenderSetIntegerScale(_renderer, SDL_TRUE);
+	else
+		SDL_RenderSetIntegerScale(_renderer, SDL_FALSE);
+}
+
+Rect2 Renderer::get_viewport() const {
+	SDL_Rect r;
+
+	SDL_RenderGetViewport(_renderer, &r);
+
+	return Rect2(r.x, r.y, r.w, r.h);
+}
+void Renderer::set_viewport(const Rect2 &rect) const {
+	SDL_Rect r = rect.as_rect();
+
+	SDL_RenderSetViewport(_renderer, &r);
+}
+
+Rect2 Renderer::get_clip_rect() const {
+	SDL_Rect r;
+
+	SDL_RenderGetClipRect(_renderer, &r);
+
+	return Rect2(r.x, r.y, r.w, r.h);
+}
+void Renderer::set_clip_rect(Rect2 *rect) const {
+	if (rect) {
+		SDL_Rect r = rect->as_rect();
+
+		SDL_RenderSetClipRect(_renderer, &r);
+	} else {
+		SDL_RenderSetClipRect(_renderer, nullptr);
+	}
+}
+bool Renderer::clip_rect_enabled() const {
+	return SDL_RenderIsClipEnabled(_renderer);
+}
+
+bool Renderer::render_target_supported() {
+	return SDL_RenderTargetSupported(_renderer);
+}
+
+SDL_Texture *Renderer::get_render_target() {
+	return SDL_GetRenderTarget(_renderer);
+}
+void Renderer::set_render_target(Texture *texture) {
+	if (texture) {
+		SDL_SetRenderTarget(_renderer, texture->get_texture());
+	} else {
+		SDL_SetRenderTarget(_renderer, nullptr);
+	}
+}
+
+void Renderer::initialize() {
+	if (SDL_Init(_flags) != 0) {
+		printf("SDL_Init() hiba!\n");
+
+		return;
+	}
+
+	if (SDL_CreateWindowAndRenderer(_initial_window_width, _initial_window_height, _window_flags, &_window, &_renderer) != 0) {
+		printf("SDL_CreateWindowAndRenderer() hiba!\n");
+
+		return;
+	}
+
+	_window_display_index = SDL_GetWindowDisplayIndex(_window);
+}
+
+void Renderer::destroy() {
+	if (_window)
+		SDL_DestroyWindow(_window);
+
+	if (_renderer)
+		SDL_DestroyRenderer(_renderer);
+
+	_window = nullptr;
+	_renderer = nullptr;
+}
+
+SDL_Window *Renderer::get_window() {
+	return _window;
+}
+
+SDL_Renderer *Renderer::get_renderer() {
+	return _renderer;
+}
+
+Renderer::Renderer() {
+	if (_singleton) {
+		printf("Renderer::Renderer(): _singleton is not null!\n");
+	}
+
+	_initial_window_width = 640;
+	_initial_window_height = 480;
+
+	_singleton = this;
+
+	_flags = SDL_INIT_VIDEO | SDL_INIT_TIMER;
+	_window_flags = SDL_WINDOW_SHOWN;
+
+	initialize();
+}
+
+Renderer::Renderer(unsigned int flags, unsigned int window_flags, int initial_window_width, int initial_window_height) {
+	if (_singleton) {
+		printf("Renderer::Renderer(flags): _singleton is not null!\n");
+	}
+
+	_initial_window_width = initial_window_width;
+	_initial_window_height = initial_window_height;
+
+	_singleton = this;
+
+	_flags = flags;
+	_window_flags = window_flags;
+
+	initialize();
+}
+
+Renderer::~Renderer() {
+	if (_singleton != this) {
+		printf("Renderer::~Renderer(): _singleton is not this!\n");
+	}
+
+	_singleton = nullptr;
+
+	destroy();
+}
+
+Renderer *Renderer::get_singleton() {
+	return _singleton;
+}
+
+Renderer *Renderer::_singleton = nullptr;

sfw/render_immediate/renderer.h

@@ -0,0 +1,93 @@
+#ifndef RENDERER_H
+#define RENDERER_H
+
+#include "core/color.h"
+#include "core/rect2.h"
+#include "sprite.h"
+#include "texture.h"
+
+#include <SDL.h>
+
+class Renderer {
+public:
+	void present();
+	void set_draw_color(const Uint8 r, const Uint8 g, const Uint8 b, const Uint8 a);
+	void set_draw_color(const Color &color);
+	void clear();
+
+	SDL_BlendMode get_blend_mode() const;
+	void set_blend_mode(const SDL_BlendMode mode);
+
+	void draw_point(const int x, const int y);
+	void draw_point(const float x, const float y);
+
+	void draw_line(const int x1, const int x2, const int y1, const int y2);
+	void draw_line(const float x1, const float x2, const float y1, const float y2);
+
+	void draw_rect(const Rect2 &rect);
+
+	void draw_fill_rect(const Rect2 &rect);
+
+	void draw_texture(const Texture &texture, const Rect2 &dst_rect);
+	void draw_texture(const Texture &texture, const Rect2 &src_rect, const Rect2 &dst_rect);
+	void draw_texture(const Texture &texture, const Rect2 &src_rect, const Rect2 &dst_rect, const double angle, const float cx = 0, const float cy = 0, const SDL_RendererFlip flip = SDL_FLIP_NONE);
+
+	void draw_sprite(const Sprite &sprite);
+	void draw_sprite(const Sprite *sprite);
+
+	int get_dpi() const;
+	int get_window_size_w() const;
+	int get_window_size_h() const;
+	int get_size_w() const;
+	int get_size_h() const;
+	void set_size(const int w, const int h) const;
+	void get_size(int *w, int *h) const;
+
+	float get_scale_w() const;
+	float get_scale_h() const;
+	void set_scale(const float w, const float h) const;
+	void get_scale(float *w, float *h) const;
+
+	bool get_integer_scaling() const;
+	void set_integer_scaling(const bool enable);
+
+	Rect2 get_viewport() const;
+	void set_viewport(const Rect2 &rect) const;
+
+	Rect2 get_clip_rect() const;
+	void set_clip_rect(Rect2 *rect) const;
+	bool clip_rect_enabled() const;
+
+	bool render_target_supported();
+
+	SDL_Texture *get_render_target();
+	void set_render_target(Texture *texture);
+
+	void initialize();
+	void destroy();
+
+	SDL_Window *get_window();
+	SDL_Renderer *get_renderer();
+
+	Renderer();
+	Renderer(unsigned int flags, unsigned int window_flags, int window_width = 640, int window_height = 480);
+	virtual ~Renderer();
+
+	static Renderer *get_singleton();
+
+private:
+	int _initial_window_width;
+	int _initial_window_height;
+
+	unsigned int _flags;
+	unsigned int _window_flags;
+
+	SDL_Window *_window;
+	SDL_Renderer *_renderer;
+
+	int _window_display_index;
+
+	static Renderer *_singleton;
+};
+
+#endif