load image in gui
This commit is contained in:
Fabien Freling
parent
1cb30b1ca7
commit
d7a54361f5
2
justfile
2
justfile
|
|
@ -20,7 +20,7 @@ run-cli: build-cli
|
|||
{{exe_cli}} lenna.png 0 0 0 0
|
||||
|
||||
run-gui: build-gui
|
||||
nixGL {{exe_gui}}
|
||||
nixGL {{exe_gui}} lenna.png
|
||||
|
||||
generate-build:
|
||||
git clean -xf src/
|
||||
|
|
|
|||
254
src/main_gui.cpp
254
src/main_gui.cpp
|
|
@ -1,198 +1,92 @@
|
|||
/*******************************************************************************************
|
||||
*
|
||||
* raylib [textures] example - Image processing
|
||||
*
|
||||
* NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU
|
||||
*memory (VRAM)
|
||||
*
|
||||
* This example has been created using raylib 3.5 (www.raylib.com)
|
||||
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h
|
||||
*for details)
|
||||
*
|
||||
* Copyright (c) 2016 Ramon Santamaria (@raysan5)
|
||||
*
|
||||
********************************************************************************************/
|
||||
#include <cstdlib>
|
||||
#include <filesystem>
|
||||
#include <iostream>
|
||||
#include <vector>
|
||||
|
||||
#include "raylib.h"
|
||||
namespace raylib {
|
||||
#include <raylib.h>
|
||||
}
|
||||
|
||||
#include <stdlib.h> // Required for: free()
|
||||
#include "bounding_box.h"
|
||||
|
||||
#define NUM_PROCESSES 8
|
||||
namespace fs = std::filesystem;
|
||||
|
||||
typedef enum {
|
||||
NONE = 0,
|
||||
COLOR_GRAYSCALE,
|
||||
COLOR_TINT,
|
||||
COLOR_INVERT,
|
||||
COLOR_CONTRAST,
|
||||
COLOR_BRIGHTNESS,
|
||||
FLIP_VERTICAL,
|
||||
FLIP_HORIZONTAL
|
||||
} ImageProcess;
|
||||
struct Button {
|
||||
raylib::Rectangle rect;
|
||||
std::string text;
|
||||
bool hover = false;
|
||||
|
||||
static const char* processText[] = {
|
||||
"NO PROCESSING", "COLOR GRAYSCALE", "COLOR TINT", "COLOR INVERT",
|
||||
"COLOR CONTRAST", "COLOR BRIGHTNESS", "FLIP VERTICAL", "FLIP HORIZONTAL"};
|
||||
bool pressed() {
|
||||
hover =
|
||||
raylib::CheckCollisionPointRec(raylib::GetMousePosition(), rect);
|
||||
return hover and
|
||||
raylib::IsMouseButtonReleased(raylib::MOUSE_BUTTON_LEFT);
|
||||
};
|
||||
|
||||
int main(void) {
|
||||
// Initialization
|
||||
//--------------------------------------------------------------------------------------
|
||||
const int screenWidth = 800;
|
||||
const int screenHeight = 450;
|
||||
void draw() const {
|
||||
raylib::DrawRectangleRec(rect, raylib::LIGHTGRAY);
|
||||
raylib::DrawRectangleLines(rect.x, rect.y, rect.width, rect.height,
|
||||
raylib::BLUE);
|
||||
raylib::DrawText(text.c_str(),
|
||||
(rect.x + rect.width / 2 -
|
||||
raylib::MeasureText(text.c_str(), 10) / 2),
|
||||
rect.y + 11, 10, raylib::DARKBLUE);
|
||||
};
|
||||
};
|
||||
|
||||
InitWindow(screenWidth, screenHeight,
|
||||
"raylib [textures] example - image processing");
|
||||
void draw(const BoundingBox& box) {}
|
||||
|
||||
// NOTE: Textures MUST be loaded after Window initialization (OpenGL context
|
||||
// is required)
|
||||
|
||||
Image imOrigin =
|
||||
LoadImage("resources/parrots.png"); // Loaded in CPU memory (RAM)
|
||||
ImageFormat(
|
||||
&imOrigin,
|
||||
PIXELFORMAT_UNCOMPRESSED_R8G8B8A8); // Format image to RGBA 32bit
|
||||
// (required for texture update)
|
||||
// <-- ISSUE
|
||||
Texture2D texture = LoadTextureFromImage(
|
||||
imOrigin); // Image converted to texture, GPU memory (VRAM)
|
||||
|
||||
Image imCopy = ImageCopy(imOrigin);
|
||||
|
||||
int currentProcess = NONE;
|
||||
bool textureReload = false;
|
||||
|
||||
Rectangle toggleRecs[NUM_PROCESSES] = {{0}};
|
||||
int mouseHoverRec = -1;
|
||||
|
||||
for (int i = 0; i < NUM_PROCESSES; i++)
|
||||
toggleRecs[i] = (Rectangle){40.0f, (float)(50 + 32 * i), 150.0f, 30.0f};
|
||||
|
||||
SetTargetFPS(60);
|
||||
//---------------------------------------------------------------------------------------
|
||||
|
||||
// Main game loop
|
||||
while (!WindowShouldClose()) // Detect window close button or ESC key
|
||||
{
|
||||
// Update
|
||||
//----------------------------------------------------------------------------------
|
||||
|
||||
// Mouse toggle group logic
|
||||
for (int i = 0; i < NUM_PROCESSES; i++) {
|
||||
if (CheckCollisionPointRec(GetMousePosition(), toggleRecs[i])) {
|
||||
mouseHoverRec = i;
|
||||
|
||||
if (IsMouseButtonReleased(MOUSE_BUTTON_LEFT)) {
|
||||
currentProcess = i;
|
||||
textureReload = true;
|
||||
}
|
||||
break;
|
||||
} else
|
||||
mouseHoverRec = -1;
|
||||
int main(int argc, const char* argv[]) {
|
||||
if (argc < 2) {
|
||||
std::cerr << "Usage: " << argv[0] << " path/to/image\n";
|
||||
return 1;
|
||||
}
|
||||
|
||||
// Keyboard toggle group logic
|
||||
if (IsKeyPressed(KEY_DOWN)) {
|
||||
currentProcess++;
|
||||
if (currentProcess > (NUM_PROCESSES - 1))
|
||||
currentProcess = 0;
|
||||
textureReload = true;
|
||||
} else if (IsKeyPressed(KEY_UP)) {
|
||||
currentProcess--;
|
||||
if (currentProcess < 0)
|
||||
currentProcess = 7;
|
||||
textureReload = true;
|
||||
const fs::path input(argv[1]);
|
||||
if (!fs::exists(input)) {
|
||||
std::cerr << "Input file " << input << " does not exist.\n";
|
||||
return 1;
|
||||
}
|
||||
raylib::Vector2 win_size = {800, 450};
|
||||
const int padding = 5;
|
||||
raylib::Vector2 in_offset = {padding, 40};
|
||||
|
||||
raylib::InitWindow(win_size.x, win_size.y, "netatmo - rect packing");
|
||||
raylib::SetTargetFPS(60);
|
||||
|
||||
raylib::Image imOrigin = raylib::LoadImage(input.c_str());
|
||||
raylib::ImageFormat(&imOrigin, raylib::PIXELFORMAT_UNCOMPRESSED_R8G8B8A8);
|
||||
raylib::Texture2D texture = raylib::LoadTextureFromImage(imOrigin);
|
||||
|
||||
win_size.x = std::max(win_size.x, in_offset.x + texture.width + padding);
|
||||
win_size.y = std::max(win_size.y, in_offset.y + texture.height + padding);
|
||||
|
||||
raylib::SetWindowSize(win_size.x, win_size.y);
|
||||
|
||||
Button b_add_box = {{padding, padding, 150, 30}, "Add box"};
|
||||
std::vector<BoundingBox> bboxes;
|
||||
|
||||
while (!raylib::WindowShouldClose()) {
|
||||
if (b_add_box.pressed()) {
|
||||
bboxes.push_back(BoundingBox({0, 0, 20, 20}));
|
||||
}
|
||||
|
||||
// Reload texture when required
|
||||
if (textureReload) {
|
||||
UnloadImage(imCopy); // Unload image-copy data
|
||||
imCopy =
|
||||
ImageCopy(imOrigin); // Restore image-copy from image-origin
|
||||
raylib::BeginDrawing();
|
||||
raylib::ClearBackground(raylib::RAYWHITE);
|
||||
|
||||
// NOTE: Image processing is a costly CPU process to be done every
|
||||
// frame, If image processing is required in a frame-basis, it
|
||||
// should be done with a texture and by shaders
|
||||
switch (currentProcess) {
|
||||
case COLOR_GRAYSCALE:
|
||||
ImageColorGrayscale(&imCopy);
|
||||
break;
|
||||
case COLOR_TINT:
|
||||
ImageColorTint(&imCopy, GREEN);
|
||||
break;
|
||||
case COLOR_INVERT:
|
||||
ImageColorInvert(&imCopy);
|
||||
break;
|
||||
case COLOR_CONTRAST:
|
||||
ImageColorContrast(&imCopy, -40);
|
||||
break;
|
||||
case COLOR_BRIGHTNESS:
|
||||
ImageColorBrightness(&imCopy, -80);
|
||||
break;
|
||||
case FLIP_VERTICAL:
|
||||
ImageFlipVertical(&imCopy);
|
||||
break;
|
||||
case FLIP_HORIZONTAL:
|
||||
ImageFlipHorizontal(&imCopy);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
b_add_box.draw();
|
||||
|
||||
raylib::DrawTexture(texture, in_offset.x, in_offset.y, raylib::WHITE);
|
||||
raylib::DrawRectangleLines(in_offset.x, in_offset.y, texture.width,
|
||||
texture.height, raylib::BLACK);
|
||||
|
||||
raylib::EndDrawing();
|
||||
}
|
||||
|
||||
Color* pixels = LoadImageColors(
|
||||
imCopy); // Load pixel data from image (RGBA 32bit)
|
||||
UpdateTexture(texture,
|
||||
pixels); // Update texture with new image data
|
||||
UnloadImageColors(pixels); // Unload pixels data from RAM
|
||||
|
||||
textureReload = false;
|
||||
}
|
||||
//----------------------------------------------------------------------------------
|
||||
|
||||
// Draw
|
||||
//----------------------------------------------------------------------------------
|
||||
BeginDrawing();
|
||||
|
||||
ClearBackground(RAYWHITE);
|
||||
|
||||
DrawText("IMAGE PROCESSING:", 40, 30, 10, DARKGRAY);
|
||||
|
||||
// Draw rectangles
|
||||
for (int i = 0; i < NUM_PROCESSES; i++) {
|
||||
DrawRectangleRec(toggleRecs[i],
|
||||
((i == currentProcess) || (i == mouseHoverRec))
|
||||
? SKYBLUE
|
||||
: LIGHTGRAY);
|
||||
DrawRectangleLines(
|
||||
(int)toggleRecs[i].x, (int)toggleRecs[i].y,
|
||||
(int)toggleRecs[i].width, (int)toggleRecs[i].height,
|
||||
((i == currentProcess) || (i == mouseHoverRec)) ? BLUE : GRAY);
|
||||
DrawText(processText[i],
|
||||
(int)(toggleRecs[i].x + toggleRecs[i].width / 2 -
|
||||
MeasureText(processText[i], 10) / 2),
|
||||
(int)toggleRecs[i].y + 11, 10,
|
||||
((i == currentProcess) || (i == mouseHoverRec))
|
||||
? DARKBLUE
|
||||
: DARKGRAY);
|
||||
}
|
||||
|
||||
DrawTexture(texture, screenWidth - texture.width - 60,
|
||||
screenHeight / 2 - texture.height / 2, WHITE);
|
||||
DrawRectangleLines(screenWidth - texture.width - 60,
|
||||
screenHeight / 2 - texture.height / 2, texture.width,
|
||||
texture.height, BLACK);
|
||||
|
||||
EndDrawing();
|
||||
//----------------------------------------------------------------------------------
|
||||
}
|
||||
|
||||
// De-Initialization
|
||||
//--------------------------------------------------------------------------------------
|
||||
UnloadTexture(texture); // Unload texture from VRAM
|
||||
UnloadImage(imOrigin); // Unload image-origin from RAM
|
||||
UnloadImage(imCopy); // Unload image-copy from RAM
|
||||
|
||||
CloseWindow(); // Close window and OpenGL context
|
||||
//--------------------------------------------------------------------------------------
|
||||
// Cleanup
|
||||
raylib::UnloadTexture(texture);
|
||||
raylib::UnloadImage(imOrigin);
|
||||
raylib::CloseWindow();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue