mirror of
https://github.com/libSDL2pp/libSDL2pp.git
synced 2025-08-03 10:55:57 -04:00
228 lines
6.5 KiB
C++
228 lines
6.5 KiB
C++
#include <vector>
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#include <SDL2/SDL.h>
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#include <SDL2pp/SDL2pp.hh>
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#include "testing.h"
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using namespace SDL2pp;
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class PixelInspector {
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private:
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std::vector<unsigned char> pixels_;
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int width_;
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int height_;
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int bpp_;
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public:
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PixelInspector(int width, int height, int bpp) : pixels_(width * height * bpp, 0), width_(width), height_(height), bpp_(bpp) {
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}
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void Retrieve(Renderer& renderer) {
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renderer.ReadPixels(Rect(0, 0, width_, height_), SDL_PIXELFORMAT_ARGB8888, pixels_.data(), width_ * bpp_);
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}
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bool Test(int x, int y, int r, int g, int b, int a = -1) {
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int offset = (x + y * width_) * bpp_;
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if (b >= 0 && pixels_[offset] != b)
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return false;
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if (g >= 0 && pixels_[offset + 1] != g)
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return false;
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if (r >= 0 && pixels_[offset + 2] != r)
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return false;
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if (a >= 0 && pixels_[offset + 3] != a)
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return false;
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return true;
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}
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bool Test3x3(int x, int y, int mask, int r, int g, int b, int a = -1) {
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for (int dy = -1; dy <= 1; dy++) {
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for (int dx = -1; dx <= 1; dx++) {
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bool maskbit = mask & (1 << ((1 - dx) + (1 - dy) * 4));
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if (Test(x + dx, y + dy, r, g, b, a) != !!maskbit)
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return false;
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}
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}
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return true;
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}
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};
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BEGIN_TEST(int, char*[])
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SDL sdl(SDL_INIT_VIDEO);
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Window window("libSDL2pp test", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 320, 240, 0);
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Renderer renderer(window, -1, SDL_RENDERER_ACCELERATED);
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PixelInspector pixels(320, 240, 4);
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{
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// clear
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renderer.SetDrawColor(1, 2, 3);
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renderer.Clear();
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pixels.Retrieve(renderer);
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EXPECT_TRUE(pixels.Test(0, 0, 1, 2, 3));
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renderer.Present();
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SDL_Delay(1000);
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}
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{
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// draw points
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renderer.SetDrawColor(0,0,0);
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renderer.Clear();
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renderer.SetDrawColor(255, 128, 0);
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renderer.DrawPoint(10, 10);
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renderer.SetDrawColor(0, 255, 128);
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renderer.DrawPoint(20, 20);
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renderer.SetDrawColor(128, 0, 255);
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Point points[] = { {30, 30} };
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renderer.DrawPoints(points, 1);
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pixels.Retrieve(renderer);
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EXPECT_TRUE(pixels.Test3x3(10, 10, 0x020, 255, 128, 0));
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EXPECT_TRUE(pixels.Test3x3(20, 20, 0x020, 0, 255, 128));
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EXPECT_TRUE(pixels.Test3x3(30, 30, 0x020, 128, 0, 255));
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renderer.Present();
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SDL_Delay(1000);
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}
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{
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// draw lines
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renderer.SetDrawColor(0, 0, 0);
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renderer.Clear();
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renderer.SetDrawColor(255, 128, 0);
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renderer.DrawLine(10, 10, 10, 50);
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renderer.SetDrawColor(0, 255, 128);
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renderer.DrawLine(Point(20, 10), Point(20, 50));
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renderer.SetDrawColor(128, 0, 255);
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Point points[] = { {30, 10}, {30, 50} };
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renderer.DrawLines(points, 2);
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pixels.Retrieve(renderer);
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EXPECT_TRUE(pixels.Test3x3(10, 20, 0x222, 255, 128, 0));
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EXPECT_TRUE(pixels.Test3x3(20, 20, 0x222, 0, 255, 128));
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EXPECT_TRUE(pixels.Test3x3(30, 20, 0x222, 128, 0, 255));
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renderer.Present();
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SDL_Delay(1000);
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}
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{
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// draw rects
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renderer.SetDrawColor(0, 0, 0);
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renderer.Clear();
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renderer.SetDrawColor(255, 128, 0);
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renderer.DrawRect(10, 10, 19, 19);
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renderer.SetDrawColor(0, 255, 128);
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renderer.DrawRect(Point(30, 10), Point(39, 19));
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renderer.SetDrawColor(128, 0, 255);
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renderer.DrawRect(Rect(10, 30, 10, 10));
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renderer.SetDrawColor(128, 192, 255);
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Rect rects[] = { {30, 30, 10, 10 } };
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renderer.DrawRects(rects, 1);
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pixels.Retrieve(renderer);
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EXPECT_TRUE(pixels.Test3x3(10, 10, 0x032, 255, 128, 0));
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EXPECT_TRUE(pixels.Test3x3(19, 10, 0x062, 255, 128, 0));
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EXPECT_TRUE(pixels.Test3x3(10, 19, 0x230, 255, 128, 0));
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EXPECT_TRUE(pixels.Test3x3(19, 19, 0x260, 255, 128, 0), "depends on OpenGL implementation, which may or may not draw last pixel of a line", NON_FATAL);
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EXPECT_TRUE(pixels.Test3x3(30, 10, 0x032, 0, 255, 128));
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EXPECT_TRUE(pixels.Test3x3(39, 10, 0x062, 0, 255, 128));
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EXPECT_TRUE(pixels.Test3x3(30, 19, 0x230, 0, 255, 128));
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EXPECT_TRUE(pixels.Test3x3(39, 19, 0x260, 0, 255, 128), "depends on OpenGL implementation, which may or may not draw last pixel of a line", NON_FATAL);
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EXPECT_TRUE(pixels.Test3x3(10, 30, 0x032, 128, 0, 255));
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EXPECT_TRUE(pixels.Test3x3(19, 30, 0x062, 128, 0, 255));
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EXPECT_TRUE(pixels.Test3x3(10, 39, 0x230, 128, 0, 255));
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EXPECT_TRUE(pixels.Test3x3(19, 39, 0x260, 128, 0, 255), "depends on OpenGL implementation, which may or may not draw last pixel of a line", NON_FATAL);
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EXPECT_TRUE(pixels.Test3x3(30, 30, 0x032, 128, 192, 255));
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EXPECT_TRUE(pixels.Test3x3(39, 30, 0x062, 128, 192, 255));
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EXPECT_TRUE(pixels.Test3x3(30, 39, 0x230, 128, 192, 255));
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EXPECT_TRUE(pixels.Test3x3(39, 39, 0x260, 128, 192, 255), "depends on OpenGL implementation, which may or may not draw last pixel of a line", NON_FATAL);
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renderer.Present();
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SDL_Delay(1000);
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}
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{
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// fill rects
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renderer.SetDrawColor(0, 0, 0);
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renderer.Clear();
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renderer.SetDrawColor(255, 128, 0);
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renderer.FillRect(10, 10, 19, 19);
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renderer.SetDrawColor(0, 255, 128);
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renderer.FillRect(Point(30, 10), Point(39, 19));
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renderer.SetDrawColor(128, 0, 255);
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renderer.FillRect(Rect(10, 30, 10, 10));
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renderer.SetDrawColor(128, 192, 255);
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Rect rects[] = { {30, 30, 10, 10 } };
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renderer.FillRects(rects, 1);
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pixels.Retrieve(renderer);
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EXPECT_TRUE(pixels.Test3x3(10, 10, 0x033, 255, 128, 0));
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EXPECT_TRUE(pixels.Test3x3(19, 10, 0x066, 255, 128, 0));
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EXPECT_TRUE(pixels.Test3x3(10, 19, 0x330, 255, 128, 0));
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EXPECT_TRUE(pixels.Test3x3(19, 19, 0x660, 255, 128, 0));
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EXPECT_TRUE(pixels.Test3x3(30, 10, 0x033, 0, 255, 128));
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EXPECT_TRUE(pixels.Test3x3(39, 10, 0x066, 0, 255, 128));
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EXPECT_TRUE(pixels.Test3x3(30, 19, 0x330, 0, 255, 128));
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EXPECT_TRUE(pixels.Test3x3(39, 19, 0x660, 0, 255, 128));
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EXPECT_TRUE(pixels.Test3x3(10, 30, 0x033, 128, 0, 255));
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EXPECT_TRUE(pixels.Test3x3(19, 30, 0x066, 128, 0, 255));
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EXPECT_TRUE(pixels.Test3x3(10, 39, 0x330, 128, 0, 255));
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EXPECT_TRUE(pixels.Test3x3(19, 39, 0x660, 128, 0, 255));
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EXPECT_TRUE(pixels.Test3x3(30, 30, 0x033, 128, 192, 255));
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EXPECT_TRUE(pixels.Test3x3(39, 30, 0x066, 128, 192, 255));
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EXPECT_TRUE(pixels.Test3x3(30, 39, 0x330, 128, 192, 255));
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EXPECT_TRUE(pixels.Test3x3(39, 39, 0x660, 128, 192, 255));
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renderer.Present();
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SDL_Delay(1000);
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}
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{
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// blend
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renderer.SetDrawColor(0, 0, 0);
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renderer.Clear();
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renderer.SetDrawBlendMode(SDL_BLENDMODE_BLEND);
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renderer.SetDrawColor(255, 255, 255, 127);
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renderer.FillRect(10, 10, 19, 19);
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pixels.Retrieve(renderer);
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EXPECT_TRUE(pixels.Test3x3(10, 10, 0x033, 127, 127, 127));
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EXPECT_TRUE(pixels.Test3x3(19, 10, 0x066, 127, 127, 127));
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EXPECT_TRUE(pixels.Test3x3(10, 19, 0x330, 127, 127, 127));
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EXPECT_TRUE(pixels.Test3x3(19, 19, 0x660, 127, 127, 127));
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renderer.Present();
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SDL_Delay(1000);
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}
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END_TEST()
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