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@ -2,12 +2,10 @@ |
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* |
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* raylib [core] example - screen recording |
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* |
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* Example complexity rating: [★☆☆☆] 1/4 |
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* Example complexity rating: [★★☆☆] 2/4 |
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* |
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* Example originally created with raylib 5.6-dev, last time updated with raylib 5.6-dev |
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* |
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* Example contributed by Ramon Santamaria (@raysan5) and reviewed by Ramon Santamaria (@raysan5) |
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* |
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* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified, |
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* BSD-like license that allows static linking with closed source software |
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* |
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@ -17,6 +15,16 @@ |
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#include "raylib.h" |
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// Using msf_gif library to record frames into GIF |
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#define MSF_GIF_IMPL |
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#include "msf_gif.h" // GIF recording functionality |
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#include <math.h> // Required for: sinf() |
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#define GIF_RECORD_FRAMERATE 5 // Record framerate, we get a frame every N frames |
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#define MAX_SINEWAVE_POINTS 256 |
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//------------------------------------------------------------------------------------ |
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// Program main entry point |
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//------------------------------------------------------------------------------------ |
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@ -29,7 +37,20 @@ int main(void) |
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InitWindow(screenWidth, screenHeight, "raylib [core] example - screen recording"); |
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// TODO: Load resources / Initialize variables at this point |
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bool gifRecording = false; // GIF recording state |
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unsigned int gifFrameCounter = 0; // GIF frames counter |
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MsfGifState gifState = { 0 }; // MSGIF context state |
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Vector2 circlePosition = { 0.0f, screenHeight/2.0f }; |
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float timeCounter = 0.0f; |
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// Get sine wave points for line drawing |
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Vector2 sinePoints[MAX_SINEWAVE_POINTS] = { 0 }; |
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for (int i = 0; i < MAX_SINEWAVE_POINTS; i++) |
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{ |
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sinePoints[i].x = i*GetScreenWidth()/180.0f; |
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sinePoints[i].y = screenHeight/2.0f + 150*sinf((2*PI/1.5f)*(1.0f/60.0f)*(float)i); // Calculate for 60 fps |
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} |
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SetTargetFPS(60); |
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//-------------------------------------------------------------------------------------- |
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@ -39,7 +60,59 @@ int main(void) |
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{ |
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// Update |
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//---------------------------------------------------------------------------------- |
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// TODO: Update variables / Implement example logic at this point |
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// Update circle sinusoidal movement |
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timeCounter += GetFrameTime(); |
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circlePosition.x += GetScreenWidth()/180.0f; |
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circlePosition.y = screenHeight/2.0f + 150*sinf((2*PI/1.5f)*timeCounter); |
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if (circlePosition.x > screenWidth) |
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{ |
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circlePosition.x = 0.0f; |
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circlePosition.y = screenHeight/2.0f; |
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timeCounter = 0.0f; |
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} |
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// Start-Stop GIF recording on CTRL+R |
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if (IsKeyDown(KEY_LEFT_CONTROL) && IsKeyPressed(KEY_R)) |
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{ |
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if (gifRecording) |
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{ |
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// Stop current recording and save file |
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gifRecording = false; |
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MsfGifResult result = msf_gif_end(&gifState); |
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SaveFileData(TextFormat("%s/screenrecording.gif", GetApplicationDirectory()), result.data, (unsigned int)result.dataSize); |
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msf_gif_free(result); |
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TraceLog(LOG_INFO, "Finish animated GIF recording"); |
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} |
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else |
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{ |
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// Start a new recording |
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gifRecording = true; |
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gifFrameCounter = 0; |
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msf_gif_begin(&gifState, GetRenderWidth(), GetRenderHeight()); |
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TraceLog(LOG_INFO, "Start animated GIF recording"); |
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} |
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} |
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if (gifRecording) |
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{ |
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gifFrameCounter++; |
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// NOTE: We record one gif frame depending on the desired gif framerate |
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if (gifFrameCounter > GIF_RECORD_FRAMERATE) |
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{ |
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// Get image data for the current frame (from backbuffer) |
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// WARNING: This process is quite slow, it can generate stuttering |
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Image imScreen = LoadImageFromScreen(); |
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// Add the frame to the gif recording, providing and "estimated" time for display in centiseconds |
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msf_gif_frame(&gifState, imScreen.data, (int)((1.0f/60.0f)*GIF_RECORD_FRAMERATE)/10, 16, imScreen.width*4); |
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gifFrameCounter = 0; |
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UnloadImage(imScreen); // Free image data |
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} |
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} |
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//---------------------------------------------------------------------------------- |
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// Draw |
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@ -48,20 +121,43 @@ int main(void) |
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ClearBackground(RAYWHITE); |
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// TODO: Draw everything that requires to be drawn at this point |
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for (int i = 0; i < (MAX_SINEWAVE_POINTS - 1); i++) |
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{ |
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DrawLineV(sinePoints[i], sinePoints[i + 1], MAROON); |
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DrawCircleV(sinePoints[i], 3, MAROON); |
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} |
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DrawCircleV(circlePosition, 30, RED); |
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DrawLineEx((Vector2){ 0, 0 }, (Vector2){ screenWidth, screenHeight }, 2.0f, RED); |
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DrawLineEx((Vector2){ 0, screenHeight }, (Vector2){ screenWidth, 0 }, 2.0f, RED); |
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DrawText("example base code template", 260, 400, 20, LIGHTGRAY); |
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DrawFPS(10, 10); |
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/* |
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// Draw record indicator |
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// WARNING: If drawn here, it will appear in the recorded image, |
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// use a render texture instead for the recording and LoadImageFromTexture(rt.texture) |
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if (gifRecording) |
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{ |
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// Display the recording indicator every half-second |
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if ((int)(GetTime()/0.5)%2 == 1) |
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{ |
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DrawCircle(30, GetScreenHeight() - 20, 10, MAROON); |
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DrawText("GIF RECORDING", 50, GetScreenHeight() - 25, 10, RED); |
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} |
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} |
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*/ |
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EndDrawing(); |
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//---------------------------------------------------------------------------------- |
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} |
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// De-Initialization |
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//-------------------------------------------------------------------------------------- |
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// TODO: Unload all loaded resources at this point |
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// If still recording a GIF on close window, just finish |
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if (gifRecording) |
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{ |
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MsfGifResult result = msf_gif_end(&gifState); |
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msf_gif_free(result); |
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gifRecording = false; |
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} |
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CloseWindow(); // Close window and OpenGL context |
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//-------------------------------------------------------------------------------------- |
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Ray
3 weeks ago
