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Support Gif recording

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Ray 2017-05-18 18:57:11 +02:00
parent 1a37f09b02
commit e01a1ba10c
1 changed files with 83 additions and 4 deletions
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87
src/core.c
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@ -44,6 +44,9 @@
* #define SUPPORT_BUSY_WAIT_LOOP
* Use busy wait loop for timming sync, if not defined, a high-resolution timer is setup and used
*
* #define SUPPORT_GIF_RECORDING
* Allow automatic gif recording of current screen pressing CTRL+F12, defined in KeyCallback()
*
* DEPENDENCIES:
* GLFW3 - Manage graphic device, OpenGL context and inputs on PLATFORM_DESKTOP (Windows, Linux, OSX)
* raymath - 3D math functionality (Vector3, Matrix, Quaternion)
@ -79,6 +82,7 @@
#define SUPPORT_CAMERA_SYSTEM
#define SUPPORT_GESTURES_SYSTEM
#define SUPPORT_BUSY_WAIT_LOOP
#define SUPPORT_GIF_RECORDING
//-------------------------------------------------
#include "raylib.h"
@ -97,7 +101,12 @@
#if defined(SUPPORT_CAMERA_SYSTEM) && !defined(PLATFORM_ANDROID)
#define CAMERA_IMPLEMENTATION
#include "camera.h" // Camera system functionality
#include "camera.h" // Camera system functionality
#endif
#if defined(SUPPORT_GIF_RECORDING)
#define GIF_IMPLEMENTATION
#include "external/gif.h" // Support GIF recording
#endif
#include <stdio.h> // Standard input / output lib
@ -318,6 +327,12 @@ static double targetTime = 0.0; // Desired time for one frame, if 0
static char configFlags = 0; // Configuration flags (bit based)
static bool showLogo = false; // Track if showing logo at init is enabled
#if defined(SUPPORT_GIF_RECORDING)
static GifWriter gifWriter;
static int gifFramesCounter = 0;
static bool gifRecording = false;
#endif
//----------------------------------------------------------------------------------
// Other Modules Functions Declaration (required by core)
//----------------------------------------------------------------------------------
@ -520,6 +535,14 @@ void InitWindow(int width, int height, void *state)
// Close window and unload OpenGL context
void CloseWindow(void)
{
#if defined(SUPPORT_GIF_RECORDING)
if (gifRecording)
{
GifEnd(&gifWriter);
gifRecording = false;
}
#endif
#if defined(SUPPORT_DEFAULT_FONT)
UnloadDefaultFont();
#endif
@ -770,6 +793,35 @@ void EndDrawing(void)
{
rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2)
#if defined(SUPPORT_GIF_RECORDING)
#define GIF_RECORD_FRAMERATE 10
if (gifRecording)
{
gifFramesCounter++;
// NOTE: We record one gif frame every 10 game frames
if ((gifFramesCounter%GIF_RECORD_FRAMERATE) == 0)
{
// Get image data for the current frame (from backbuffer)
// NOTE: This process is very slow... :(
unsigned char *screenData = rlglReadScreenPixels(screenWidth, screenHeight);
GifWriteFrame(&gifWriter, screenData, screenWidth, screenHeight, 10, 8, false);
free(screenData); // Free image data
}
if (((gifFramesCounter/15)%2) == 1)
{
DrawCircle(30, screenHeight - 20, 10, RED);
DrawText("RECORDING", 50, screenHeight - 25, 10, MAROON);
}
rlglDraw(); // Draw RECORDING message
}
#endif
SwapBuffers(); // Copy back buffer to front buffer
PollInputEvents(); // Poll user events
@ -2397,10 +2449,37 @@ static void KeyCallback(GLFWwindow *window, int key, int scancode, int action, i
#if defined(PLATFORM_DESKTOP)
else if (key == GLFW_KEY_F12 && action == GLFW_PRESS)
{
TakeScreenshot(FormatText("screenshot%03i.png", screenshotCounter));
screenshotCounter++;
#if defined(SUPPORT_GIF_RECORDING)
if (mods == GLFW_MOD_CONTROL)
{
if (gifRecording)
{
GifEnd(&gifWriter);
gifRecording = false;
TraceLog(INFO, "End animated GIF recording");
}
else
{
gifRecording = true;
gifFramesCounter = 0;
// NOTE: delay represents the time between frames in the gif, if we capture a gif frame every
// 10 game frames and each frame trakes 16.6ms (60fps), delay between gif frames should be ~16.6*10.
GifBegin(&gifWriter, FormatText("screenrec%03i.gif", screenshotCounter), screenWidth, screenHeight, (int)(GetFrameTime()*10.0f), 8, false);
screenshotCounter++;
TraceLog(INFO, "Begin animated GIF recording: %s", FormatText("screenrec%03i.gif", screenshotCounter));
}
}
else
#endif // SUPPORT_GIF_RECORDING
{
TakeScreenshot(FormatText("screenshot%03i.png", screenshotCounter));
screenshotCounter++;
}
}
#endif
#endif // PLATFORM_DESKTOP
else
{
currentKeyState[key] = action;