GIF recording

(cherry picked from commit d467d2b2295a9660631774b9edb29555cc5c30fe)

src/hardware/hw_main.c

@@ -582,7 +582,7 @@ static void HWR_RenderPlane(sector_t *sector, extrasubsector_t *xsub, boolean is
 	if (nrPlaneVerts < 3)   //not even a triangle ?
 		return;
 
-	if ((UINT32)nrPlaneVerts > UINT16_MAX) // FIXME: exceeds plVerts size
+	if (nrPlaneVerts > INT16_MAX) // FIXME: exceeds plVerts size
 	{
 		CONS_Debug(DBG_RENDER, "polygon size of %d exceeds max value of %d vertices\n", nrPlaneVerts, UINT16_MAX);
 		return;
@@ -3229,7 +3229,7 @@ static void HWR_RenderPolyObjectPlane(polyobj_t *polysector, boolean isceiling,
 	if (nrPlaneVerts < 3)   //not even a triangle ?
 		return;
 
-	if (nrPlaneVerts > UINT16_MAX) // FIXME: exceeds plVerts size
+	if (nrPlaneVerts > INT16_MAX) // FIXME: exceeds plVerts size
 	{
 		CONS_Debug(DBG_RENDER, "polygon size of %s exceeds max value of %d vertices\n", sizeu1(nrPlaneVerts), UINT16_MAX);
 		return;

src/m_anigif.c

@@ -20,6 +20,10 @@
 #include "i_video.h"
 #include "m_misc.h"
 
+#ifdef HWRENDER
+#include "hardware/hw_main.h"
+#endif
+
 // GIFs are always little-endian
 #include "byteptr.h"
 
@@ -457,6 +461,32 @@ const UINT8 gifframe_gchead[4] = {0x21,0xF9,0x04,0x04}; // GCE, bytes, packed by
 static UINT8 *gifframe_data = NULL;
 static size_t gifframe_size = 8192;
 
+#ifdef HWRENDER
+static void hwrconvert(void)
+{
+	UINT8 *linear = HWR_GetScreenshot();
+	UINT8 *dest = screens[2];
+	UINT8 r, g, b;
+	INT32 x, y;
+	size_t i = 0;
+
+	InitColorLUT();
+
+	for (y = 0; y < vid.height; y++)
+	{
+		for (x = 0; x < vid.width; x++, i += 3)
+		{
+			r = (UINT8)linear[i];
+			g = (UINT8)linear[i + 1];
+			b = (UINT8)linear[i + 2];
+			dest[(y * vid.width) + x] = colorlookup[r >> SHIFTCOLORBITS][g >> SHIFTCOLORBITS][b >> SHIFTCOLORBITS];
+		}
+	}
+
+	free(linear);
+}
+#endif
+
 //
 // GIF_framewrite
 // writes a frame into the file.
@@ -482,7 +512,12 @@ static void GIF_framewrite(void)
 		GIF_optimizeregion(cur_screen, movie_screen, &blitx, &blity, &blitw, &blith);
 
 		// blit to temp screen
-		I_ReadScreen(movie_screen);
+		if (rendermode == render_soft)
+			I_ReadScreen(movie_screen);
+#ifdef HWRENDER
+		else if (rendermode == render_opengl)
+			hwrconvert();
+#endif
 	}
 	else
 	{
@@ -491,7 +526,18 @@ static void GIF_framewrite(void)
 		blith = vid.height;
 
 		if (gif_frames == 0)
-			I_ReadScreen(movie_screen);
+		{
+			if (rendermode == render_soft)
+				I_ReadScreen(movie_screen);
+#ifdef HWRENDER
+			else if (rendermode == render_opengl)
+			{
+				hwrconvert();
+				VID_BlitLinearScreen(screens[2], screens[0], vid.width*vid.bpp, vid.height, vid.width*vid.bpp, vid.rowbytes);
+			}
+#endif
+		}
+
 		movie_screen = screens[0];
 	}
 
@@ -580,7 +626,7 @@ static void GIF_framewrite(void)
 //
 INT32 GIF_open(const char *filename)
 {
-#ifdef HWRENDER
+#if 0
 	if (rendermode != render_soft)
 	{
 		CONS_Alert(CONS_WARNING, M_GetText("GIFs cannot be taken in non-software modes!\n"));

src/m_misc.c

@@ -1120,12 +1120,8 @@ void M_StartMovie(void)
 	switch (cv_moviemode.value)
 	{
 		case MM_GIF:
-			if (rendermode == render_soft)
-			{
-				moviemode = M_StartMovieGIF(pathname);
-				break;
-			}
-			/* FALLTHRU */
+			moviemode = M_StartMovieGIF(pathname);
+			break;
 		case MM_APNG:
 			moviemode = M_StartMovieAPNG(pathname);
 			break;

src/r_data.h

@@ -99,6 +99,8 @@ void R_MakeInvertmap(void);
 #endif
 const char *R_ColormapNameForNum(INT32 num);
 
+UINT8 NearestColor(UINT8 r, UINT8 g, UINT8 b);
+
 extern INT32 numtextures;
 
 #endif

src/sdl/i_video.c

@@ -1647,6 +1647,7 @@ INT32 VID_SetMode(INT32 modeNum)
 	//Impl_SetWindowName("SRB2Kart "VERSIONSTRING);
 
 	SDLSetMode(vid.width, vid.height, USE_FULLSCREEN);
+	Impl_VideoSetupBuffer();
 
 	if (rendermode == render_soft)
 	{
@@ -1655,8 +1656,6 @@ INT32 VID_SetMode(INT32 modeNum)
 			SDL_FreeSurface(bufSurface);
 			bufSurface = NULL;
 		}
-
-		Impl_VideoSetupBuffer();
 	}
 
 	return SDL_TRUE;
@@ -1779,7 +1778,7 @@ static void Impl_VideoSetupSDLBuffer(void)
 static void Impl_VideoSetupBuffer(void)
 {
 	// Set up game's software render buffer
-	if (rendermode == render_soft)
+	//if (rendermode == render_soft)
 	{
 		vid.rowbytes = vid.width * vid.bpp;
 		vid.direct = NULL;

src/v_video.c

@@ -2867,6 +2867,27 @@ Unoptimized version
 #endif
 }
 
+// Taken from my videos-in-SRB2 project
+// Generates a color look-up table
+// which has up to 64 colors at each channel
+// (see the defines in v_video.h)
+
+UINT8 colorlookup[CLUTSIZE][CLUTSIZE][CLUTSIZE];
+
+void InitColorLUT(void)
+{
+	UINT8 r, g, b;
+	static boolean clutinit = false;
+	if (!clutinit)
+	{
+		for (r = 0; r < CLUTSIZE; r++)
+			for (g = 0; g < CLUTSIZE; g++)
+				for (b = 0; b < CLUTSIZE; b++)
+					colorlookup[r][g][b] = NearestColor(r << SHIFTCOLORBITS, g << SHIFTCOLORBITS, b << SHIFTCOLORBITS);
+		clutinit = true;
+	}
+}
+
 // V_Init
 // old software stuff, buffers are allocated at video mode setup
 // here we set the screens[x] pointers accordingly
@@ -2878,13 +2899,9 @@ void V_Init(void)
 	const INT32 screensize = vid.rowbytes * vid.height;
 
 	LoadMapPalette();
-	// hardware modes do not use screens[] pointers
+
 	for (i = 0; i < NUMSCREENS; i++)
 		screens[i] = NULL;
-	if (rendermode != render_soft)
-	{
-		return; // be sure to cause a NULL read/write error so we detect it, in case of..
-	}
 
 	// start address of NUMSCREENS * width*height vidbuffers
 	if (base)

src/v_video.h

@@ -36,6 +36,18 @@ cv_rsaturation, cv_ysaturation, cv_gsaturation, cv_csaturation, cv_bsaturation,
 // Allocates buffer screens, call before R_Init.
 void V_Init(void);
 
+// Taken from my videos-in-SRB2 project
+// Generates a color look-up table
+// which has up to 64 colors at each channel
+
+#define COLORBITS 6
+#define SHIFTCOLORBITS (8-COLORBITS)
+#define CLUTSIZE (1<<COLORBITS)
+
+extern UINT8 colorlookup[CLUTSIZE][CLUTSIZE][CLUTSIZE];
+
+void InitColorLUT(void);
+
 // Set the current RGB palette lookup to use for palettized graphics
 void V_SetPalette(INT32 palettenum);