--- /dev/null
+/*
+ * Acess2 SDL Video Driver
+ * - By John Hodge (thePowersGang)
+ *
+ * video/acess/ptyvideo.c
+ * - PTY-based video driver
+ */
+#include "SDL_config.h"
+#include <acess/sys.h>
+#include <acess/devices/pty.h>
+#include "SDL_video.h"
+#include "../SDL_sysvideo.h"
+
+#define _THIS SDL_VideoDevice *this
+#define HIDDEN (this->hidden)
+
+// === TYPES ===
+struct SDL_PrivateVideoData
+{
+ int OutFD;
+ SDL_Rect MaxRect;
+ SDL_Rect *FullscreenModes[2];
+ Uint32 *Palette; // 256 colours
+};
+
+// === PROTOTYPES ===
+static int AcessPTY_Avaliable(void);
+static SDL_VideoDevice *AcessPTY_Create(int devidx);
+static void AcessPTY_Destroy(SDL_VideoDevice *device);
+// - Core functions
+static int AcessPTY_VideoInit(_THIS, SDL_PixelFormat *vformat);
+static SDL_Rect **AcessPTY_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
+static SDL_Surface *AcessPTY_SetVideoMode(_THIS, SDL_Surface *Current, int W, int H, int BPP, Uint32 Flags);
+static int AcessPTY_SetColors(_THIS, int FirstColour, int NColours, SDL_Color *Colours);
+static void AcessPTY_VideoQuit(_THIS);
+static void AcessPTY_UpdateRects(_THIS, int NumRects, SDL_Rect *Rects);
+// - Hardware Surfaces (TODO)
+//static int AcessPTY_AllocHWSurface(_THIS, SDL_Surface *Surface);
+//static int AcessPTY_FillHWRect(_THIS, SDL_Surface *Dst, SDL_Rect *Rect, Uint32 Color);
+
+// === GLOBALS ===
+VideoBootStrap AcessPTY_bootstrap = {
+ "acesspty", "Acess2 PTY Video",
+ AcessPTY_Avaliable, AcessPTY_Create
+};
+SDL_VideoDevice AcessPTY_TemplateDevice = {
+ .VideoInit = AcessPTY_VideoInit,
+ .ListModes = AcessPTY_ListModes,
+ .SetVideoMode = AcessPTY_SetVideoMode,
+ .SetColors = AcessPTY_SetColors,
+ .VideoQuit = AcessPTY_VideoQuit,
+ .UpdateRects = AcessPTY_UpdateRects,
+ //.FillHWRect = AcessPTY_FillHWRect,
+ .free = AcessPTY_Destroy
+};
+
+int AcessPTY_Avaliable(void)
+{
+ // - test on stdin so stdout can be redirected without breaking stuff
+ if( _SysIOCtl(0, DRV_IOCTL_TYPE, NULL) != DRV_TYPE_TERMINAL )
+ return 0;
+ // TODO: Check if the terminal supports graphics modes
+ return 1;
+}
+
+SDL_VideoDevice *AcessPTY_Create(int devidx)
+{
+ SDL_VideoDevice *ret;
+
+ // Allocate and pre-populate
+ ret = malloc( sizeof(SDL_VideoDevice) );
+ if( !ret ) {
+ SDL_OutOfMemory();
+ return NULL;
+ }
+ memcpy(ret, &AcessPTY_TemplateDevice, sizeof(SDL_VideoDevice));
+ ret->hidden = malloc( sizeof(struct SDL_PrivateVideoData) );
+ if( !ret->hidden ) {
+ SDL_OutOfMemory();
+ free(ret);
+ return NULL;
+ }
+ memset(ret->hidden, 0, sizeof(*ret->hidden));
+
+ ret->hidden->OutFD = _SysCopyFD(0, -1);
+ if( ret->hidden->OutFD == -1 ) {
+ free(ret->hidden);
+ free(ret);
+ return NULL;
+ }
+
+ // Redirect stdout/stderr if they point to the terminal
+ if( 1 ) { //_SysIsSameNode(0, 1) ) {
+ _SysReopen(1, "stdout.txt", OPENFLAG_WRITE);
+ }
+ if( 1 ) { //_SysIsSameNode(0, 2) ) {
+ _SysReopen(2, "stderr.txt", OPENFLAG_WRITE);
+ }
+
+ return ret;
+}
+
+void AcessPTY_Destroy(SDL_VideoDevice *device)
+{
+ _SysClose(device->hidden->OutFD);
+ free(device->hidden);
+ free(device);
+}
+
+// ---
+// General functions
+// ---
+int AcessPTY_VideoInit(_THIS, SDL_PixelFormat *vformat)
+{
+ // Set PTY to graphics mode
+ struct ptymode mode = {.OutputMode = PTYBUFFMT_FB, .InputMode = PTYIMODE_RAW};
+ _SysIOCtl(HIDDEN->OutFD, PTY_IOCTL_SETMODE, &mode);
+
+ // Get current dimensions (and use these as the max)
+ // - Not strictly true when using a GUI Terminal, but does apply for VTerms
+ struct ptydims dims;
+ _SysIOCtl(HIDDEN->OutFD, PTY_IOCTL_GETDIMS, &dims);
+
+ HIDDEN->MaxRect.x = 0;
+ HIDDEN->MaxRect.y = 0;
+ HIDDEN->MaxRect.w = dims.PW;
+ HIDDEN->MaxRect.h = dims.PH;
+
+ HIDDEN->FullscreenModes[0] = &HIDDEN->MaxRect;
+ HIDDEN->FullscreenModes[1] = NULL;
+
+ return 0;
+}
+
+SDL_Rect **AcessPTY_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
+{
+ if( flags & SDL_FULLSCREEN)
+ return HIDDEN->FullscreenModes; // Should be only one entry
+// else if( SDLToDFBPixelFormat (format) != DSPF_UNKNOWN )
+ return (SDL_Rect**) -1;
+// else
+// return NULL;
+}
+
+SDL_Surface *AcessPTY_SetVideoMode(_THIS, SDL_Surface *Current, int W, int H, int BPP, Uint32 Flags)
+{
+ // Sanity first
+ if( W <= 0 || W > HIDDEN->MaxRect.w )
+ return NULL;
+ if( H <= 0 || H > HIDDEN->MaxRect.h )
+ return NULL;
+
+ struct ptydims dims = {.PW = W, .PH = H};
+ _SysIOCtl(HIDDEN->OutFD, PTY_IOCTL_SETDIMS, &dims);
+
+ Current->pixels = SDL_malloc(W * H * 4);
+ if( !Current->pixels ) {
+
+ }
+
+ return Current;
+}
+
+int AcessPTY_SetColors(_THIS, int FirstColour, int NColours, SDL_Color *Colours)
+{
+ return 1;
+}
+
+void AcessPTY_VideoQuit(_THIS)
+{
+}
+
+void AcessPTY_UpdateRects(_THIS, int NumRects, SDL_Rect *Rects)
+{
+ int w = this->screen->w;
+ int h = this->screen->h;
+ _SysWrite(HIDDEN->OutFD, w*h*4, this->screen->pixels);
+}
+
git.ucc.asn.au / tpg / acess2.git / commitdiff
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