pw_graphics/pw_draw/draw_test.cc - pigweed/experimental - Git at Google

 // Copyright 2022 The Pigweed Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
 // use this file except in compliance with the License. You may obtain a copy of
 // the License at
 //
 //     https://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 // License for the specific language governing permissions and limitations under
 // the License.

 #include "pw_draw/draw.h"

 #include "gtest/gtest.h"
 #include "pw_color/color.h"
 #include "pw_color/colors_pico8.h"
 #include "pw_draw/font_set.h"
 #include "pw_draw/text_area.h"
 #include "pw_framebuffer/rgb565.h"
 #include "pw_log/log.h"
 #include "pw_string/string_builder.h"

 using namespace pw::draw;
 using namespace pw::framebuffer;

 namespace pw::draw {
 namespace {

 void PrintFramebufferAsANSI(FramebufferRgb565* fb) {
   pw::StringBuffer<4096> line;
   pw::StringBuffer<128> color_string;

   for (int y = 0; y < fb->height; y += 2) {
     line.clear();

     for (int x = 0; x < fb->width; x++) {
       color_string.clear();
       ColorRGBA row1(fb->GetPixel(x, y));
       color_rgb565_t row2_color = fb->GetPixel(x, y + 1);

       if (row2_color == fb->transparent_color) {
         color_string.Format("[m[38;2;%d;%d;%dm▀", row1.r, row1.g, row1.b);
       } else {
         ColorRGBA row2(row2_color);
         color_string.Format("[m[38;2;%d;%d;%dm[48;2;%d;%d;%dm▀",
                             row1.r,
                             row1.g,
                             row1.b,
                             row2.r,
                             row2.g,
                             row2.b);
       }
       line.append(color_string.data());
     }
     line.append("[m\n");
     // TODO(tonymd): Log seems to drop characters, maybe a size limit?
     // PW_LOG_INFO("%s", line.data());
     printf("%s", line.data());
   }
 }

 TEST(DrawLine, Diagonal) {
   uint16_t data[4 * 4];
   FramebufferRgb565 fb(data, 4, 4);
   color_rgb565_t indigo = colors_pico8_rgb565[12];

   fb.Fill(0);

   DrawLine(&fb, 0, 0, fb.width, fb.height, indigo);
   PrintFramebufferAsANSI(&fb);

   // Check the diagonal is set to indigo, everything else should be 0.
   for (int x = 0; x < fb.width; x++) {
     for (int y = 0; y < fb.height; y++) {
       if (x == y)
         EXPECT_EQ(fb.GetPixel(x, y), indigo);
       else
         EXPECT_EQ(fb.GetPixel(x, y), 0);
     }
   }
 }

 TEST(DrawHLine, Top) {
   uint16_t data[4 * 4];
   FramebufferRgb565 fb(data, 4, 4);
   color_rgb565_t indigo = colors_pico8_rgb565[12];
   fb.Fill(0);

   // Horizonal line at y = 0
   DrawHLine(&fb, 0, fb.width, 0, indigo);
   PrintFramebufferAsANSI(&fb);

   // Check color at y = 0 is indigo, y = 1 should be 0.
   for (int x = 0; x < fb.width; x++) {
     EXPECT_EQ(fb.GetPixel(x, 0), indigo);
     EXPECT_EQ(fb.GetPixel(x, 1), 0);
   }
 }

 TEST(DrawRect, Empty) {
   uint16_t data[5 * 5];
   FramebufferRgb565 fb(data, 5, 5);
   color_rgb565_t indigo = colors_pico8_rgb565[12];
   fb.Fill(0);

   // 4x4 rectangle, not filled
   DrawRect(&fb, 0, 0, 3, 3, indigo, false);
   PrintFramebufferAsANSI(&fb);

   EXPECT_EQ(fb.GetPixel(0, 0), indigo);
   EXPECT_EQ(fb.GetPixel(1, 0), indigo);
   EXPECT_EQ(fb.GetPixel(2, 0), indigo);
   EXPECT_EQ(fb.GetPixel(3, 0), indigo);
   EXPECT_EQ(fb.GetPixel(4, 0), 0);

   EXPECT_EQ(fb.GetPixel(0, 1), indigo);
   EXPECT_EQ(fb.GetPixel(1, 1), 0);
   EXPECT_EQ(fb.GetPixel(2, 1), 0);
   EXPECT_EQ(fb.GetPixel(3, 1), indigo);
   EXPECT_EQ(fb.GetPixel(4, 1), 0);

   EXPECT_EQ(fb.GetPixel(0, 2), indigo);
   EXPECT_EQ(fb.GetPixel(1, 2), 0);
   EXPECT_EQ(fb.GetPixel(2, 2), 0);
   EXPECT_EQ(fb.GetPixel(3, 2), indigo);
   EXPECT_EQ(fb.GetPixel(4, 2), 0);

   EXPECT_EQ(fb.GetPixel(0, 3), indigo);
   EXPECT_EQ(fb.GetPixel(1, 3), indigo);
   EXPECT_EQ(fb.GetPixel(2, 3), indigo);
   EXPECT_EQ(fb.GetPixel(3, 3), indigo);
   EXPECT_EQ(fb.GetPixel(4, 3), 0);

   EXPECT_EQ(fb.GetPixel(0, 4), 0);
   EXPECT_EQ(fb.GetPixel(1, 4), 0);
   EXPECT_EQ(fb.GetPixel(2, 4), 0);
   EXPECT_EQ(fb.GetPixel(3, 4), 0);
   EXPECT_EQ(fb.GetPixel(4, 4), 0);
 }

 TEST(DrawRect, Filled) {
   uint16_t data[5 * 5];
   FramebufferRgb565 fb(data, 5, 5);
   color_rgb565_t indigo = colors_pico8_rgb565[12];
   fb.Fill(0);

   // 4x4 rectangle, filled
   DrawRect(&fb, 0, 0, 3, 3, indigo, true);
   PrintFramebufferAsANSI(&fb);

   EXPECT_EQ(fb.GetPixel(0, 0), indigo);
   EXPECT_EQ(fb.GetPixel(1, 0), indigo);
   EXPECT_EQ(fb.GetPixel(2, 0), indigo);
   EXPECT_EQ(fb.GetPixel(3, 0), indigo);
   EXPECT_EQ(fb.GetPixel(4, 0), 0);

   EXPECT_EQ(fb.GetPixel(0, 1), indigo);
   EXPECT_EQ(fb.GetPixel(1, 1), indigo);
   EXPECT_EQ(fb.GetPixel(2, 1), indigo);
   EXPECT_EQ(fb.GetPixel(3, 1), indigo);
   EXPECT_EQ(fb.GetPixel(4, 1), 0);

   EXPECT_EQ(fb.GetPixel(0, 2), indigo);
   EXPECT_EQ(fb.GetPixel(1, 2), indigo);
   EXPECT_EQ(fb.GetPixel(2, 2), indigo);
   EXPECT_EQ(fb.GetPixel(3, 2), indigo);
   EXPECT_EQ(fb.GetPixel(4, 2), 0);

   EXPECT_EQ(fb.GetPixel(0, 3), indigo);
   EXPECT_EQ(fb.GetPixel(1, 3), indigo);
   EXPECT_EQ(fb.GetPixel(2, 3), indigo);
   EXPECT_EQ(fb.GetPixel(3, 3), indigo);
   EXPECT_EQ(fb.GetPixel(4, 3), 0);

   EXPECT_EQ(fb.GetPixel(0, 4), 0);
   EXPECT_EQ(fb.GetPixel(1, 4), 0);
   EXPECT_EQ(fb.GetPixel(2, 4), 0);
   EXPECT_EQ(fb.GetPixel(3, 4), 0);
   EXPECT_EQ(fb.GetPixel(4, 4), 0);
 }

 TEST(DrawRectWH, WidthHeightCorrect) {
   uint16_t data[5 * 5];
   FramebufferRgb565 fb(data, 5, 5);
   color_rgb565_t indigo = colors_pico8_rgb565[12];
   fb.Fill(0);

   // 4x4 rectangle, not filled
   DrawRectWH(&fb, 0, 0, 4, 4, indigo, false);
   PrintFramebufferAsANSI(&fb);

   EXPECT_EQ(fb.GetPixel(0, 0), indigo);
   EXPECT_EQ(fb.GetPixel(1, 0), indigo);
   EXPECT_EQ(fb.GetPixel(2, 0), indigo);
   EXPECT_EQ(fb.GetPixel(3, 0), indigo);
   EXPECT_EQ(fb.GetPixel(4, 0), 0);

   EXPECT_EQ(fb.GetPixel(0, 1), indigo);
   EXPECT_EQ(fb.GetPixel(1, 1), 0);
   EXPECT_EQ(fb.GetPixel(2, 1), 0);
   EXPECT_EQ(fb.GetPixel(3, 1), indigo);
   EXPECT_EQ(fb.GetPixel(4, 1), 0);

   EXPECT_EQ(fb.GetPixel(0, 2), indigo);
   EXPECT_EQ(fb.GetPixel(1, 2), 0);
   EXPECT_EQ(fb.GetPixel(2, 2), 0);
   EXPECT_EQ(fb.GetPixel(3, 2), indigo);
   EXPECT_EQ(fb.GetPixel(4, 2), 0);

   EXPECT_EQ(fb.GetPixel(0, 3), indigo);
   EXPECT_EQ(fb.GetPixel(1, 3), indigo);
   EXPECT_EQ(fb.GetPixel(2, 3), indigo);
   EXPECT_EQ(fb.GetPixel(3, 3), indigo);
   EXPECT_EQ(fb.GetPixel(4, 3), 0);

   EXPECT_EQ(fb.GetPixel(0, 4), 0);
   EXPECT_EQ(fb.GetPixel(1, 4), 0);
   EXPECT_EQ(fb.GetPixel(2, 4), 0);
   EXPECT_EQ(fb.GetPixel(3, 4), 0);
   EXPECT_EQ(fb.GetPixel(4, 4), 0);
 }

 TEST(DrawCircle, Empty) {
   uint16_t data[7 * 7];
   FramebufferRgb565 fb(data, 7, 7);
   color_rgb565_t indigo = colors_pico8_rgb565[12];
   fb.Fill(0);

   DrawCircle(&fb, 3, 3, 3, indigo, false);

   PrintFramebufferAsANSI(&fb);

   // ..xxx..
   // .x...x.
   // x.....x
   // x.....x
   // x.....x
   // .x...x.
   // ..xxx..

   EXPECT_EQ(fb.GetPixel(0, 0), 0);
   EXPECT_EQ(fb.GetPixel(1, 0), 0);
   EXPECT_EQ(fb.GetPixel(2, 0), indigo);
   EXPECT_EQ(fb.GetPixel(3, 0), indigo);
   EXPECT_EQ(fb.GetPixel(4, 0), indigo);
   EXPECT_EQ(fb.GetPixel(5, 0), 0);
   EXPECT_EQ(fb.GetPixel(6, 0), 0);

   EXPECT_EQ(fb.GetPixel(0, 1), 0);
   EXPECT_EQ(fb.GetPixel(1, 1), indigo);
   EXPECT_EQ(fb.GetPixel(2, 1), 0);
   EXPECT_EQ(fb.GetPixel(3, 1), 0);
   EXPECT_EQ(fb.GetPixel(4, 1), 0);
   EXPECT_EQ(fb.GetPixel(5, 1), indigo);
   EXPECT_EQ(fb.GetPixel(6, 1), 0);

   EXPECT_EQ(fb.GetPixel(0, 2), indigo);
   EXPECT_EQ(fb.GetPixel(1, 2), 0);
   EXPECT_EQ(fb.GetPixel(2, 2), 0);
   EXPECT_EQ(fb.GetPixel(3, 2), 0);
   EXPECT_EQ(fb.GetPixel(4, 2), 0);
   EXPECT_EQ(fb.GetPixel(5, 2), 0);
   EXPECT_EQ(fb.GetPixel(6, 2), indigo);

   EXPECT_EQ(fb.GetPixel(0, 3), indigo);
   EXPECT_EQ(fb.GetPixel(1, 3), 0);
   EXPECT_EQ(fb.GetPixel(2, 3), 0);
   EXPECT_EQ(fb.GetPixel(3, 3), 0);
   EXPECT_EQ(fb.GetPixel(4, 3), 0);
   EXPECT_EQ(fb.GetPixel(5, 3), 0);
   EXPECT_EQ(fb.GetPixel(6, 3), indigo);

   EXPECT_EQ(fb.GetPixel(0, 4), indigo);
   EXPECT_EQ(fb.GetPixel(1, 4), 0);
   EXPECT_EQ(fb.GetPixel(2, 4), 0);
   EXPECT_EQ(fb.GetPixel(3, 4), 0);
   EXPECT_EQ(fb.GetPixel(4, 4), 0);
   EXPECT_EQ(fb.GetPixel(5, 4), 0);
   EXPECT_EQ(fb.GetPixel(6, 4), indigo);

   EXPECT_EQ(fb.GetPixel(0, 5), 0);
   EXPECT_EQ(fb.GetPixel(1, 5), indigo);
   EXPECT_EQ(fb.GetPixel(2, 5), 0);
   EXPECT_EQ(fb.GetPixel(3, 5), 0);
   EXPECT_EQ(fb.GetPixel(4, 5), 0);
   EXPECT_EQ(fb.GetPixel(5, 5), indigo);
   EXPECT_EQ(fb.GetPixel(6, 5), 0);

   EXPECT_EQ(fb.GetPixel(0, 6), 0);
   EXPECT_EQ(fb.GetPixel(1, 6), 0);
   EXPECT_EQ(fb.GetPixel(2, 6), indigo);
   EXPECT_EQ(fb.GetPixel(3, 6), indigo);
   EXPECT_EQ(fb.GetPixel(4, 6), indigo);
   EXPECT_EQ(fb.GetPixel(5, 6), 0);
   EXPECT_EQ(fb.GetPixel(6, 6), 0);
 }

 TEST(DrawText, WithFgBg) {
   uint16_t data[(5 * 6) * (3 * 8)];
   FramebufferRgb565 fb(data, 5 * 6, 3 * 8);
   fb.Fill(0);

   pw::draw::TextArea text_area(&fb, &font6x8);
   text_area.SetForegroundColor(colors_pico8_rgb565[COLOR_PINK]);
   text_area.SetBackgroundColor(0);
   text_area.DrawText("Hell\noT\nhere.\nWorld");

   PrintFramebufferAsANSI(&fb);
 }

 }  // namespace
 }  // namespace pw::draw
	// Copyright 2022 The Pigweed Authors
	//
	// Licensed under the Apache License, Version 2.0 (the "License"); you may not
	// use this file except in compliance with the License. You may obtain a copy of
	// the License at
	//
	// https://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
	// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
	// License for the specific language governing permissions and limitations under
	// the License.

	#include "pw_draw/draw.h"

	#include "gtest/gtest.h"
	#include "pw_color/color.h"
	#include "pw_color/colors_pico8.h"
	#include "pw_draw/font_set.h"
	#include "pw_draw/text_area.h"
	#include "pw_framebuffer/rgb565.h"
	#include "pw_log/log.h"
	#include "pw_string/string_builder.h"

	using namespace pw::draw;
	using namespace pw::framebuffer;

	namespace pw::draw {
	namespace {

	void PrintFramebufferAsANSI(FramebufferRgb565* fb) {
	pw::StringBuffer<4096> line;
	pw::StringBuffer<128> color_string;

	for (int y = 0; y < fb->height; y += 2) {
	line.clear();

	for (int x = 0; x < fb->width; x++) {
	color_string.clear();
	ColorRGBA row1(fb->GetPixel(x, y));
	color_rgb565_t row2_color = fb->GetPixel(x, y + 1);

	if (row2_color == fb->transparent_color) {
	color_string.Format("[m[38;2;%d;%d;%dm▀", row1.r, row1.g, row1.b);
	} else {
	ColorRGBA row2(row2_color);
	color_string.Format("[m[38;2;%d;%d;%dm[48;2;%d;%d;%dm▀",
	row1.r,
	row1.g,
	row1.b,
	row2.r,
	row2.g,
	row2.b);
	}
	line.append(color_string.data());
	}
	line.append("[m\n");
	// TODO(tonymd): Log seems to drop characters, maybe a size limit?
	// PW_LOG_INFO("%s", line.data());
	printf("%s", line.data());
	}
	}

	TEST(DrawLine, Diagonal) {
	uint16_t data[4 * 4];
	FramebufferRgb565 fb(data, 4, 4);
	color_rgb565_t indigo = colors_pico8_rgb565[12];

	fb.Fill(0);

	DrawLine(&fb, 0, 0, fb.width, fb.height, indigo);
	PrintFramebufferAsANSI(&fb);

	// Check the diagonal is set to indigo, everything else should be 0.
	for (int x = 0; x < fb.width; x++) {
	for (int y = 0; y < fb.height; y++) {
	if (x == y)
	EXPECT_EQ(fb.GetPixel(x, y), indigo);
	else
	EXPECT_EQ(fb.GetPixel(x, y), 0);
	}
	}
	}

	TEST(DrawHLine, Top) {
	uint16_t data[4 * 4];
	FramebufferRgb565 fb(data, 4, 4);
	color_rgb565_t indigo = colors_pico8_rgb565[12];
	fb.Fill(0);

	// Horizonal line at y = 0
	DrawHLine(&fb, 0, fb.width, 0, indigo);
	PrintFramebufferAsANSI(&fb);

	// Check color at y = 0 is indigo, y = 1 should be 0.
	for (int x = 0; x < fb.width; x++) {
	EXPECT_EQ(fb.GetPixel(x, 0), indigo);
	EXPECT_EQ(fb.GetPixel(x, 1), 0);
	}
	}

	TEST(DrawRect, Empty) {
	uint16_t data[5 * 5];
	FramebufferRgb565 fb(data, 5, 5);
	color_rgb565_t indigo = colors_pico8_rgb565[12];
	fb.Fill(0);

	// 4x4 rectangle, not filled
	DrawRect(&fb, 0, 0, 3, 3, indigo, false);
	PrintFramebufferAsANSI(&fb);

	EXPECT_EQ(fb.GetPixel(0, 0), indigo);
	EXPECT_EQ(fb.GetPixel(1, 0), indigo);
	EXPECT_EQ(fb.GetPixel(2, 0), indigo);
	EXPECT_EQ(fb.GetPixel(3, 0), indigo);
	EXPECT_EQ(fb.GetPixel(4, 0), 0);

	EXPECT_EQ(fb.GetPixel(0, 1), indigo);
	EXPECT_EQ(fb.GetPixel(1, 1), 0);
	EXPECT_EQ(fb.GetPixel(2, 1), 0);
	EXPECT_EQ(fb.GetPixel(3, 1), indigo);
	EXPECT_EQ(fb.GetPixel(4, 1), 0);

	EXPECT_EQ(fb.GetPixel(0, 2), indigo);
	EXPECT_EQ(fb.GetPixel(1, 2), 0);
	EXPECT_EQ(fb.GetPixel(2, 2), 0);
	EXPECT_EQ(fb.GetPixel(3, 2), indigo);
	EXPECT_EQ(fb.GetPixel(4, 2), 0);

	EXPECT_EQ(fb.GetPixel(0, 3), indigo);
	EXPECT_EQ(fb.GetPixel(1, 3), indigo);
	EXPECT_EQ(fb.GetPixel(2, 3), indigo);
	EXPECT_EQ(fb.GetPixel(3, 3), indigo);
	EXPECT_EQ(fb.GetPixel(4, 3), 0);

	EXPECT_EQ(fb.GetPixel(0, 4), 0);
	EXPECT_EQ(fb.GetPixel(1, 4), 0);
	EXPECT_EQ(fb.GetPixel(2, 4), 0);
	EXPECT_EQ(fb.GetPixel(3, 4), 0);
	EXPECT_EQ(fb.GetPixel(4, 4), 0);
	}

	TEST(DrawRect, Filled) {
	uint16_t data[5 * 5];
	FramebufferRgb565 fb(data, 5, 5);
	color_rgb565_t indigo = colors_pico8_rgb565[12];
	fb.Fill(0);

	// 4x4 rectangle, filled
	DrawRect(&fb, 0, 0, 3, 3, indigo, true);
	PrintFramebufferAsANSI(&fb);

	EXPECT_EQ(fb.GetPixel(0, 0), indigo);
	EXPECT_EQ(fb.GetPixel(1, 0), indigo);
	EXPECT_EQ(fb.GetPixel(2, 0), indigo);
	EXPECT_EQ(fb.GetPixel(3, 0), indigo);
	EXPECT_EQ(fb.GetPixel(4, 0), 0);

	EXPECT_EQ(fb.GetPixel(0, 1), indigo);
	EXPECT_EQ(fb.GetPixel(1, 1), indigo);
	EXPECT_EQ(fb.GetPixel(2, 1), indigo);
	EXPECT_EQ(fb.GetPixel(3, 1), indigo);
	EXPECT_EQ(fb.GetPixel(4, 1), 0);

	EXPECT_EQ(fb.GetPixel(0, 2), indigo);
	EXPECT_EQ(fb.GetPixel(1, 2), indigo);
	EXPECT_EQ(fb.GetPixel(2, 2), indigo);
	EXPECT_EQ(fb.GetPixel(3, 2), indigo);
	EXPECT_EQ(fb.GetPixel(4, 2), 0);

	EXPECT_EQ(fb.GetPixel(0, 3), indigo);
	EXPECT_EQ(fb.GetPixel(1, 3), indigo);
	EXPECT_EQ(fb.GetPixel(2, 3), indigo);
	EXPECT_EQ(fb.GetPixel(3, 3), indigo);
	EXPECT_EQ(fb.GetPixel(4, 3), 0);

	EXPECT_EQ(fb.GetPixel(0, 4), 0);
	EXPECT_EQ(fb.GetPixel(1, 4), 0);
	EXPECT_EQ(fb.GetPixel(2, 4), 0);
	EXPECT_EQ(fb.GetPixel(3, 4), 0);
	EXPECT_EQ(fb.GetPixel(4, 4), 0);
	}

	TEST(DrawRectWH, WidthHeightCorrect) {
	uint16_t data[5 * 5];
	FramebufferRgb565 fb(data, 5, 5);
	color_rgb565_t indigo = colors_pico8_rgb565[12];
	fb.Fill(0);

	// 4x4 rectangle, not filled
	DrawRectWH(&fb, 0, 0, 4, 4, indigo, false);
	PrintFramebufferAsANSI(&fb);

	EXPECT_EQ(fb.GetPixel(0, 0), indigo);
	EXPECT_EQ(fb.GetPixel(1, 0), indigo);
	EXPECT_EQ(fb.GetPixel(2, 0), indigo);
	EXPECT_EQ(fb.GetPixel(3, 0), indigo);
	EXPECT_EQ(fb.GetPixel(4, 0), 0);

	EXPECT_EQ(fb.GetPixel(0, 1), indigo);
	EXPECT_EQ(fb.GetPixel(1, 1), 0);
	EXPECT_EQ(fb.GetPixel(2, 1), 0);
	EXPECT_EQ(fb.GetPixel(3, 1), indigo);
	EXPECT_EQ(fb.GetPixel(4, 1), 0);

	EXPECT_EQ(fb.GetPixel(0, 2), indigo);
	EXPECT_EQ(fb.GetPixel(1, 2), 0);
	EXPECT_EQ(fb.GetPixel(2, 2), 0);
	EXPECT_EQ(fb.GetPixel(3, 2), indigo);
	EXPECT_EQ(fb.GetPixel(4, 2), 0);

	EXPECT_EQ(fb.GetPixel(0, 3), indigo);
	EXPECT_EQ(fb.GetPixel(1, 3), indigo);
	EXPECT_EQ(fb.GetPixel(2, 3), indigo);
	EXPECT_EQ(fb.GetPixel(3, 3), indigo);
	EXPECT_EQ(fb.GetPixel(4, 3), 0);

	EXPECT_EQ(fb.GetPixel(0, 4), 0);
	EXPECT_EQ(fb.GetPixel(1, 4), 0);
	EXPECT_EQ(fb.GetPixel(2, 4), 0);
	EXPECT_EQ(fb.GetPixel(3, 4), 0);
	EXPECT_EQ(fb.GetPixel(4, 4), 0);
	}

	TEST(DrawCircle, Empty) {
	uint16_t data[7 * 7];
	FramebufferRgb565 fb(data, 7, 7);
	color_rgb565_t indigo = colors_pico8_rgb565[12];
	fb.Fill(0);

	DrawCircle(&fb, 3, 3, 3, indigo, false);

	PrintFramebufferAsANSI(&fb);

	// ..xxx..
	// .x...x.
	// x.....x
	// x.....x
	// x.....x
	// .x...x.
	// ..xxx..

	EXPECT_EQ(fb.GetPixel(0, 0), 0);
	EXPECT_EQ(fb.GetPixel(1, 0), 0);
	EXPECT_EQ(fb.GetPixel(2, 0), indigo);
	EXPECT_EQ(fb.GetPixel(3, 0), indigo);
	EXPECT_EQ(fb.GetPixel(4, 0), indigo);
	EXPECT_EQ(fb.GetPixel(5, 0), 0);
	EXPECT_EQ(fb.GetPixel(6, 0), 0);

	EXPECT_EQ(fb.GetPixel(0, 1), 0);
	EXPECT_EQ(fb.GetPixel(1, 1), indigo);
	EXPECT_EQ(fb.GetPixel(2, 1), 0);
	EXPECT_EQ(fb.GetPixel(3, 1), 0);
	EXPECT_EQ(fb.GetPixel(4, 1), 0);
	EXPECT_EQ(fb.GetPixel(5, 1), indigo);
	EXPECT_EQ(fb.GetPixel(6, 1), 0);

	EXPECT_EQ(fb.GetPixel(0, 2), indigo);
	EXPECT_EQ(fb.GetPixel(1, 2), 0);
	EXPECT_EQ(fb.GetPixel(2, 2), 0);
	EXPECT_EQ(fb.GetPixel(3, 2), 0);
	EXPECT_EQ(fb.GetPixel(4, 2), 0);
	EXPECT_EQ(fb.GetPixel(5, 2), 0);
	EXPECT_EQ(fb.GetPixel(6, 2), indigo);

	EXPECT_EQ(fb.GetPixel(0, 3), indigo);
	EXPECT_EQ(fb.GetPixel(1, 3), 0);
	EXPECT_EQ(fb.GetPixel(2, 3), 0);
	EXPECT_EQ(fb.GetPixel(3, 3), 0);
	EXPECT_EQ(fb.GetPixel(4, 3), 0);
	EXPECT_EQ(fb.GetPixel(5, 3), 0);
	EXPECT_EQ(fb.GetPixel(6, 3), indigo);

	EXPECT_EQ(fb.GetPixel(0, 4), indigo);
	EXPECT_EQ(fb.GetPixel(1, 4), 0);
	EXPECT_EQ(fb.GetPixel(2, 4), 0);
	EXPECT_EQ(fb.GetPixel(3, 4), 0);
	EXPECT_EQ(fb.GetPixel(4, 4), 0);
	EXPECT_EQ(fb.GetPixel(5, 4), 0);
	EXPECT_EQ(fb.GetPixel(6, 4), indigo);

	EXPECT_EQ(fb.GetPixel(0, 5), 0);
	EXPECT_EQ(fb.GetPixel(1, 5), indigo);
	EXPECT_EQ(fb.GetPixel(2, 5), 0);
	EXPECT_EQ(fb.GetPixel(3, 5), 0);
	EXPECT_EQ(fb.GetPixel(4, 5), 0);
	EXPECT_EQ(fb.GetPixel(5, 5), indigo);
	EXPECT_EQ(fb.GetPixel(6, 5), 0);

	EXPECT_EQ(fb.GetPixel(0, 6), 0);
	EXPECT_EQ(fb.GetPixel(1, 6), 0);
	EXPECT_EQ(fb.GetPixel(2, 6), indigo);
	EXPECT_EQ(fb.GetPixel(3, 6), indigo);
	EXPECT_EQ(fb.GetPixel(4, 6), indigo);
	EXPECT_EQ(fb.GetPixel(5, 6), 0);
	EXPECT_EQ(fb.GetPixel(6, 6), 0);
	}

	TEST(DrawText, WithFgBg) {
	uint16_t data[(5 * 6) * (3 * 8)];
	FramebufferRgb565 fb(data, 5 * 6, 3 * 8);
	fb.Fill(0);

	pw::draw::TextArea text_area(&fb, &font6x8);
	text_area.SetForegroundColor(colors_pico8_rgb565[COLOR_PINK]);
	text_area.SetBackgroundColor(0);
	text_area.DrawText("Hell\noT\nhere.\nWorld");

	PrintFramebufferAsANSI(&fb);
	}

	} // namespace
	} // namespace pw::draw