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Split demo into multiple programs to keep them simple and clear

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This commit is contained in:
Dmitry Marakasov 2013-12-18 03:41:27 +04:00
parent 3d57457a33
commit 21c7e3c73c
3 changed files with 123 additions and 45 deletions
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13
CMakeLists.txt
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@ -35,13 +35,16 @@ IF(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
ADD_LIBRARY(SDL2pp SHARED ${LIBRARY_SOURCES})
TARGET_LINK_LIBRARIES(SDL2pp ${SDL2_LIBRARY})
# demo
SET(DEMO_SOURCES
demo/demo.cc
# demos
SET(DEMOS
sprites
lines
)
ADD_EXECUTABLE(demo ${DEMO_SOURCES})
TARGET_LINK_LIBRARIES(demo SDL2pp)
FOREACH(DEMO ${DEMOS})
ADD_EXECUTABLE(demo_${DEMO} demo/${DEMO}.cc)
TARGET_LINK_LIBRARIES(demo_${DEMO} SDL2pp)
ENDFOREACH(DEMO ${DEMOS})
ELSE(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
MESSAGE(STATUS "libSDL2pp bundled build")

91
demo/lines.cc Normal file
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@ -0,0 +1,91 @@
/*
libSDL2pp - C++ wrapper for libSDL2
Copyright (C) 2013 Dmitry Marakasov <amdmi3@amdmi3.ru>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include <iostream>
#include <SDL2/SDL.h>
#include <SDL2pp/SDL2pp.hh>
using namespace SDL2pp;
int Run() {
SDL sdl(SDL_INIT_VIDEO);
Window window("libSDL2pp demo: sprites", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_RESIZABLE);
Renderer render(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE);
render.SetDrawBlendMode(SDL_BLENDMODE_BLEND);
while (1) {
// Process input
SDL_Event event;
while (SDL_PollEvent(&event))
if (event.type == SDL_QUIT || (event.type == SDL_KEYDOWN && (event.key.keysym.sym == SDLK_ESCAPE || event.key.keysym.sym == SDLK_q)))
return 0;
// Clear screen
render.SetDrawColor(0, 32, 32);
render.Clear();
// Render lines
render.SetDrawColor(255, 0, 0);
render.DrawLine(10, 10, 630, 10);
render.SetDrawColor(0, 255, 0);
render.DrawLine(630, 10, 630, 470);
render.SetDrawColor(0, 0, 255);
render.DrawLine(630, 470, 10, 470);
render.SetDrawColor(255, 255, 255);
render.DrawLine(10, 470, 10, 10);
render.SetDrawColor(255, 255, 255, 127);
render.FillRect(0, 0, 20, 20);
render.SetDrawColor(255, 255, 255);
render.DrawRect(0, 0, 20, 20);
// Pixel-perfectness test
render.SetDrawColor(192, 192, 192);
render.DrawLine(6, 2, 6, 10);
render.DrawLine(2, 6, 10, 6);
render.SetDrawColor(255, 255, 255);
render.DrawRect(5, 5, 7, 7);
render.DrawRect(3, 3, 9, 9);
render.Present();
// Frame limiter
SDL_Delay(1);
}
return 0;
}
int main() {
try {
return Run();
} catch (Exception& e) {
std::cerr << "Error: " << e.what() << " (" << e.GetSDLError() << ")" << std::endl;
} catch (std::exception& e) {
std::cerr << "Error: " << e.what() << std::endl;
}
return -1;
}

64
demo/demo.cc → demo/sprites.cc
View File

@ -37,61 +37,45 @@ unsigned char pixels[4 * 4 * 4] = {
int Run() {
SDL sdl(SDL_INIT_VIDEO);
Window window("libSDL2pp demo", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_RESIZABLE);
Renderer render(window, -1, SDL_RENDERER_ACCELERATED);
Texture sprite(render, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, 4, 4);
Window window("libSDL2pp demo: sprites", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_RESIZABLE);
Renderer render(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE);
// Load sprite texture
Texture sprite(render, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, 4, 4);
sprite.Update(Rect::Null(), pixels, 4 * 4);
sprite.SetBlendMode(SDL_BLENDMODE_BLEND);
render.SetDrawBlendMode(SDL_BLENDMODE_BLEND);
while (1) {
// Process events
// Process input
SDL_Event event;
while (SDL_PollEvent(&event)) {
if (event.type == SDL_QUIT || (event.type == SDL_KEYDOWN && event.key.keysym.sym == SDLK_ESCAPE))
while (SDL_PollEvent(&event))
if (event.type == SDL_QUIT || (event.type == SDL_KEYDOWN && (event.key.keysym.sym == SDLK_ESCAPE || event.key.keysym.sym == SDLK_q)))
return 0;
}
// Render
render.SetDrawColor(0, 0, 0);
// Clear screen
render.SetDrawColor(0, 32, 32);
render.Clear();
// Render lines
render.SetDrawColor(255, 0, 0);
render.DrawLine(10, 10, 630, 10);
render.SetDrawColor(0, 255, 0);
render.DrawLine(630, 10, 630, 470);
render.SetDrawColor(0, 0, 255);
render.DrawLine(630, 470, 10, 470);
render.SetDrawColor(255, 255, 255);
render.DrawLine(10, 470, 10, 10);
// Simple copy
render.Copy(sprite, Rect::Null(), Rect(80, 0, 240, 240));
render.SetDrawColor(255, 255, 255, 127);
render.FillRect(0, 0, 20, 20);
render.SetDrawColor(255, 255, 255);
render.DrawRect(0, 0, 20, 20);
// Copy with modulation
render.Copy(sprite, Rect::Null(), Rect(400, 0, 120, 120));
sprite.SetAlphaMod(92);
render.Copy(sprite, Rect::Null(), Rect(400 + 120, 0, 120, 120));
sprite.SetColorMod(255, 0, 0);
render.Copy(sprite, Rect::Null(), Rect(400, 0 + 120, 120, 120));
sprite.SetAlphaMod();
render.Copy(sprite, Rect::Null(), Rect(400 + 120, 0 + 120, 120, 120));
sprite.SetColorMod();
// Pixel-perfectness test
render.SetDrawColor(192, 192, 192);
render.DrawLine(6, 2, 6, 10);
render.DrawLine(2, 6, 10, 6);
// Copy with rotation
render.Copy(sprite, Rect::Null(), Rect(80, 240, 240, 240), -1.0 * SDL_GetTicks() / 5000.0 * 360.0, Point::Null(), SDL_FLIP_NONE);
render.SetDrawColor(255, 255, 255);
render.DrawRect(5, 5, 7, 7);
render.DrawRect(3, 3, 9, 9);
// Render 4 smaller squares
sprite.SetAlphaMod(0xff);
render.Copy(sprite, Rect::Null(), Rect(80, 0, 240, 240), SDL_GetTicks() / 5000.0 * 360.0, Point::Null(), SDL_FLIP_NONE);
render.Copy(sprite, Rect::Null(), Rect(80, 360, 240, 240), -1.0 * SDL_GetTicks() / 5000.0 * 360.0, Point::Null(), SDL_FLIP_NONE);
render.Copy(sprite, Rect::Null(), Rect(400, 0, 240, 240), -1.0 * SDL_GetTicks() / 5000.0 * 360.0, Point::Null(), SDL_FLIP_NONE);
render.Copy(sprite, Rect::Null(), Rect(400, 360, 240, 240), SDL_GetTicks() / 5000.0 * 360.0, Point::Null(), SDL_FLIP_NONE);
// Render transparent bigger square
sprite.SetAlphaMod(0x80);
render.Copy(sprite, Rect::Null(), Rect(80, 0, 480, 480), SDL_GetTicks() / 10000.0 * 360.0, Point::Null(), SDL_FLIP_NONE);
// Rotation around another point
render.Copy(sprite, Rect::Null(), Rect(520, 360, 120, 120), -1.0 * SDL_GetTicks() / 5000.0 * 360.0, Point(0, 0), SDL_FLIP_HORIZONTAL | SDL_FLIP_VERTICAL);
render.Present();