initial import

2025-06-22 20:39:04 -05:00
commit f8a70886f0
3428 changed files with 302546 additions and 0 deletions
--- a/sdl/libre.patch
+++ b/sdl/libre.patch
@@ -0,0 +1,130 @@
+diff --git a/src/video/fbcon/SDL_fbriva.c b/src/video/fbcon/SDL_fbriva.c
+index eb4b71f1b..59469759c 100644
+--- a/src/video/fbcon/SDL_fbriva.c
+++ b/src/video/fbcon/SDL_fbriva.c
+@@ -24,12 +24,10 @@
+ #include "SDL_video.h"
+ #include "../SDL_blit.h"
+ #include "SDL_fbriva.h"
+-#include "riva_mmio.h"
+ #include "riva_regs.h"
+ 
+ 
+ static int FifoEmptyCount = 0;
+-static int FifoFreeCount = 0;
+ 
+ /* Wait for vertical retrace */
+ static void WaitVBL(_THIS)
+@@ -41,20 +39,6 @@ static void WaitVBL(_THIS)
+ 	while ( !(*port & 0x08) )
+ 		;
+ }
+-static void NV3WaitIdle(_THIS)
+-{
+-	RivaRop *Rop = (RivaRop *)(mapped_io + ROP_OFFSET);
+-	while ( (Rop->FifoFree < FifoEmptyCount) ||
+-	        (*(mapped_io + PGRAPH_OFFSET + 0x000006B0) & 0x01) )
+-		;
+-}
+-static void NV4WaitIdle(_THIS)
+-{
+-	RivaRop *Rop = (RivaRop *)(mapped_io + ROP_OFFSET);
+-	while ( (Rop->FifoFree < FifoEmptyCount) ||
+-	        (*(mapped_io + PGRAPH_OFFSET + 0x00000700) & 0x01) )
+-		;
+-}
+ 
+ #if 0 /* Not yet implemented? */
+ /* Sets video mem colorkey and accelerated blit function */
+@@ -74,7 +58,6 @@ static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color)
+ {
+ 	int dstX, dstY;
+ 	int dstW, dstH;
+-	RivaBitmap *Bitmap = (RivaBitmap *)(mapped_io + BITMAP_OFFSET);
+ 
+ 	/* Don't blit to the display surface when switched away */
+ 	if ( switched_away ) {
+@@ -93,13 +76,6 @@ static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color)
+ 	dstX += rect->x;
+ 	dstY += rect->y;
+ 
+-	RIVA_FIFO_FREE(Bitmap, 1);
+-	Bitmap->Color1A = color;
+-
+-	RIVA_FIFO_FREE(Bitmap, 2);
+-	Bitmap->UnclippedRectangle[0].TopLeft     = (dstX << 16) | dstY; 
+-	Bitmap->UnclippedRectangle[0].WidthHeight = (dstW << 16) | dstH;
+-
+ 	FB_AddBusySurface(dst);
+ 
+ 	if ( dst == this->screen ) {
+@@ -115,7 +91,6 @@ static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
+ 	int srcX, srcY;
+ 	int dstX, dstY;
+ 	int dstW, dstH;
+-	RivaScreenBlt *Blt = (RivaScreenBlt *)(mapped_io + BLT_OFFSET);
+ 
+ 	/* FIXME: For now, only blit to display surface */
+ 	if ( dst->pitch != SDL_VideoSurface->pitch ) {
+@@ -142,11 +117,6 @@ static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
+ 	dstX += dstrect->x;
+ 	dstY += dstrect->y;
+ 
+-	RIVA_FIFO_FREE(Blt, 3);
+-	Blt->TopLeftSrc  = (srcY << 16) | srcX;
+-	Blt->TopLeftDst  = (dstY << 16) | dstX;
+-	Blt->WidthHeight = (dstH  << 16) | dstW;
+-
+ 	FB_AddBusySurface(src);
+ 	FB_AddBusySurface(dst);
+ 
+@@ -185,23 +155,15 @@ static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst)
+ 
+ void FB_RivaAccel(_THIS, __u32 card)
+ {
+-	RivaRop *Rop = (RivaRop *)(mapped_io + ROP_OFFSET);
+ 
+ 	/* We have hardware accelerated surface functions */
+ 	this->CheckHWBlit = CheckHWBlit;
+ 	wait_vbl = WaitVBL;
+ 	switch (card) {
+-	    case FB_ACCEL_NV3:
+-		wait_idle = NV3WaitIdle;
+-		break;
+-	    case FB_ACCEL_NV4:
+-		wait_idle = NV4WaitIdle;
+-		break;
+ 	    default:
+ 		/* Hmm... FIXME */
+ 		break;
+ 	}
+-	FifoEmptyCount = Rop->FifoFree;
+ 
+ 	/* The Riva has an accelerated color fill */
+ 	this->info.blit_fill = 1;
+diff --git a/src/video/fbcon/SDL_fbvideo.c b/src/video/fbcon/SDL_fbvideo.c
+index 5e5880908..dee999cbd 100644
+--- a/src/video/fbcon/SDL_fbvideo.c
+++ b/src/video/fbcon/SDL_fbvideo.c
+@@ -46,7 +46,6 @@
+ #include "SDL_fbevents_c.h"
+ #include "SDL_fb3dfx.h"
+ #include "SDL_fbmatrox.h"
+-#include "SDL_fbriva.h"
+ 
+ /*#define FBCON_DEBUG*/
+ 
+@@ -769,13 +768,6 @@ static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat)
+ #endif
+ 			FB_3DfxAccel(this, finfo.accel);
+ 			break;
+-		    case FB_ACCEL_NV3:
+-		    case FB_ACCEL_NV4:
+-#ifdef FBACCEL_DEBUG
+-			printf("NVidia hardware accelerator!\n");
+-#endif
+-			FB_RivaAccel(this, finfo.accel);
+-			break;
+ 		    default:
+ #ifdef FBACCEL_DEBUG
+ 			printf("Unknown hardware accelerator.\n");