From 9ac891fe71fb46e330a3ccfbbaf0728d728a2e80 Mon Sep 17 00:00:00 2001
From: Alfred Burgess <alfred.burgess95@gmail.com>
Date: Sat, 9 Dec 2023 15:15:06 +0800
Subject: [PATCH] Added viewport to SDL Window class
---
include/window.h | 4 ++++
src/window.cpp | 16 +++++++++++++++-
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/include/window.h b/include/window.h
index 258c1ab..3a2bdec 100644
--- a/include/window.h
+++ b/include/window.h
@@ -56,7 +56,11 @@ class Window
SDL_Rect _drawRect( int x, int y, uint16_t width, uint16_t height );
void _drawLine( int16_t x1, int16_t y1, int16_t x2, int16_t y2 );
+ // void _drawLine( Vec2 from, Vec2 to );
void _drawPoint( Vec2 point );
+ // void _drawPoint( int16_t x, int16_t y );
+
+ SDL_Rect _createViewport( int16_t x, int16_t y, int16_t w, int16_t h );
void initialise();
void clean();
diff --git a/src/window.cpp b/src/window.cpp
index efe1705..fb74e8d 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -80,8 +80,8 @@ void Window::loadMedia( std::string path )
void Window::update() {
SDL_SetRenderDrawColor( this->_renderer, 0xFF, 0xFF, 0xFF, 0xFF );
SDL_RenderClear( this->_renderer );
- SDL_RenderCopy( this->_renderer, this->_activeTexture, NULL, NULL );
+ SDL_Rect core = this->_createViewport( 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT );
// Render Example Primatives
this->_drawRect( SCREEN_WIDTH / 4, SCREEN_HEIGHT / 4, SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2 );
this->_drawRect( 0, 0, 10, 10 );
@@ -91,6 +91,9 @@ void Window::update() {
this->_drawPoint( { SCREEN_WIDTH / 2, i } );
}
+ SDL_Rect overlay = this->_createViewport( SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2, SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2 );
+ SDL_RenderCopy( this->_renderer, this->_activeTexture, NULL, NULL );
+
SDL_RenderPresent( this->_renderer );
}
@@ -197,4 +200,15 @@ void Window::clean()
SDL_Quit();
this->_logger.info( "Window Closed and clean" );
+}
+
+SDL_Rect Window::_createViewport( int16_t x, int16_t y, int16_t w, int16_t h )
+{
+ SDL_Rect viewport;
+ viewport.x = x;
+ viewport.y = y;
+ viewport.w = w;
+ viewport.h = h;
+ SDL_RenderSetViewport( this->_renderer, &viewport );
+ return viewport;
}
\ No newline at end of file
--
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