glSDL support

libsdl-org · May 1, 2006 · 0e4dcc23d9d4aaa70c2fcf12a3cf79c291b01c82 · 0e4dcc2
1 parent 151966f
commit 0e4dcc23d9d4aaa70c2fcf12a3cf79c291b01c82
diff --git a/Makefile.dc b/Makefile.dc
@@ -55,6 +55,7 @@ SRCS = \
 	src/video/dummy/SDL_nullevents.c \
 	src/video/dummy/SDL_nullmouse.c \
 	src/video/dummy/SDL_nullvideo.c \
+	src/video/glsdl/SDL_glsdl.c \
 	src/video/SDL_blit.c \
 	src/video/SDL_blit_0.c \
 	src/video/SDL_blit_1.c \

diff --git a/configure.in b/configure.in
@@ -1459,6 +1459,20 @@ CheckMacGL()
     fi
 }
 
+dnl Find glSDL
+CheckglSDL()
+{
+    AC_ARG_ENABLE(video-glsdl,
+[  --enable-video-glsdl    use glSDL video driver [default=yes]],
+                  , enable_video_glsdl=yes)
+    AC_MSG_CHECKING(for glSDL support)
+    AC_MSG_RESULT($video_opengl)
+    if test x$video_opengl = xyes -a x$enable_video_glsdl = xyes; then
+        AC_DEFINE(SDL_VIDEO_DRIVER_GLSDL)
+        SOURCES="$SOURCES $srcdir/src/video/glsdl/*.c"
+    fi
+}
+
 dnl Check for Mesa offscreen rendering
 CheckAtariOSMesa()
 {
@@ -2080,6 +2094,7 @@ case "$host" in
         CheckQtopia
         CheckPicoGUI
         CheckOpenGLX11
+        CheckglSDL
         CheckInputEvents
         CheckTslib
         CheckUSBHID
@@ -2178,6 +2193,7 @@ case "$host" in
         CheckPHOTON
         CheckX11
         CheckOpenGLX11
+        CheckglSDL
         CheckPTHREAD
         # Set up files for the audio library
         if test x$enable_audio = xyes; then
@@ -2215,6 +2231,7 @@ case "$host" in
         CheckDummyAudio
         CheckWIN32
         CheckWIN32GL
+        CheckglSDL
         CheckDIRECTX
         CheckNASM
         # Set up files for the audio library
@@ -2279,6 +2296,7 @@ case "$host" in
         CheckNASM
         CheckBWINDOW
         CheckBeGL
+        CheckglSDL
         # Set up files for the audio library
         if test x$enable_audio = xyes; then
             AC_DEFINE(SDL_AUDIO_DRIVER_BAUDIO)
@@ -2356,6 +2374,7 @@ case "$host" in
         CheckX11
         CheckMacGL
         CheckOpenGLX11
+        CheckglSDL
         CheckPTHREAD
         CheckAltivec
 
@@ -2417,6 +2436,7 @@ case "$host" in
         CheckAtariAudio
         CheckAtariLdg
         CheckAtariOSMesa
+        CheckglSDL
         CheckPTH
         # Set up files for the audio library
         if test x$enable_threads = xyes -a x$enable_pth = xyes; then

diff --git a/include/SDL_config.h.in b/include/SDL_config.h.in
@@ -262,6 +262,7 @@
 #undef SDL_VIDEO_DRIVER_GAPI
 #undef SDL_VIDEO_DRIVER_GEM
 #undef SDL_VIDEO_DRIVER_GGI
+#undef SDL_VIDEO_DRIVER_GLSDL
 #undef SDL_VIDEO_DRIVER_IPOD
 #undef SDL_VIDEO_DRIVER_NANOX
 #undef SDL_VIDEO_DRIVER_OS2FS

diff --git a/include/SDL_config_amiga.h b/include/SDL_config_amiga.h
@@ -73,6 +73,7 @@
 /* Enable various video drivers */
 #define SDL_VIDEO_DRIVER_CYBERGRAPHICS	1
 #define SDL_VIDEO_DRIVER_DUMMY	1
+#define SDL_VIDEO_DRIVER_GLSDL	1
 
 /* Enable OpenGL support */
 #define SDL_VIDEO_OPENGL	1

diff --git a/include/SDL_config_dreamcast.h b/include/SDL_config_dreamcast.h
@@ -102,5 +102,6 @@ typedef unsigned long uintptr_t;
 /* Enable various video drivers */
 #define SDL_VIDEO_DRIVER_DC	1
 #define SDL_VIDEO_DRIVER_DUMMY	1
+#define SDL_VIDEO_DRIVER_GLSDL	1
 
 #endif /* _SDL_config_dreamcast_h */
diff --git a/include/SDL_config_macos.h b/include/SDL_config_macos.h
@@ -90,6 +90,7 @@ typedef unsigned long	uintptr_t;
 /* Enable various video drivers */
 #define SDL_VIDEO_DRIVER_DUMMY	1
 #define SDL_VIDEO_DRIVER_DRAWSPROCKET	1
+#define SDL_VIDEO_DRIVER_GLSDL	1
 #define SDL_VIDEO_DRIVER_TOOLBOX	1
 
 /* Enable OpenGL support */

diff --git a/include/SDL_config_macosx.h b/include/SDL_config_macosx.h
@@ -116,6 +116,7 @@
 
 /* Enable various video drivers */
 #define SDL_VIDEO_DRIVER_DUMMY	1
+#define SDL_VIDEO_DRIVER_GLSDL	1
 #define SDL_VIDEO_DRIVER_QUARTZ	1
 
 /* Enable OpenGL support */

diff --git a/include/SDL_config_win32.h b/include/SDL_config_win32.h
@@ -155,6 +155,9 @@ typedef unsigned int uintptr_t;
 #define SDL_VIDEO_DRIVER_DDRAW	1
 #endif
 #define SDL_VIDEO_DRIVER_DUMMY	1
+#ifndef _WIN32_WCE
+#define SDL_VIDEO_DRIVER_GLSDL	1
+#endif
 #define SDL_VIDEO_DRIVER_WINDIB	1
 
 /* Enable OpenGL support */

diff --git a/include/SDL_video.h b/include/SDL_video.h
@@ -124,7 +124,7 @@ typedef struct SDL_Surface {
 #define SDL_DOUBLEBUF	0x40000000	/* Set up double-buffered video mode */
 #define SDL_FULLSCREEN	0x80000000	/* Surface is a full screen display */
 #define SDL_OPENGL      0x00000002      /* Create an OpenGL rendering context */
-#define SDL_OPENGLBLIT_OBSOLETE 0x0000000A /* Obsolete, do not use! */
+#define SDL_INTERNALOPENGL 0x00000008   /* SDL uses OpenGL internally for this window */
 #define SDL_RESIZABLE	0x00000010	/* This video mode may be resized */
 #define SDL_NOFRAME	0x00000020	/* No window caption or edge frame */
 /* Used internally (read-only) */

diff --git a/src/video/SDL_blit.c b/src/video/SDL_blit.c
@@ -281,7 +281,7 @@ int SDL_CalculateBlit(SDL_Surface *surface)
 				video->CheckHWBlit(this, surface, surface->map->dst);
 			}
 	}
-
+	
 	/* Get the blit function index, based on surface mode */
 	/* { 0 = nothing, 1 = colorkey, 2 = alpha, 3 = colorkey+alpha } */
 	blit_index = 0;

diff --git a/src/video/SDL_glfuncs.h b/src/video/SDL_glfuncs.h
@@ -30,7 +30,7 @@ SDL_PROC_UNUSED(void,glColor3i,(GLint,GLint,GLint))
 SDL_PROC_UNUSED(void,glColor3iv,(const GLint*))
 SDL_PROC_UNUSED(void,glColor3s,(GLshort,GLshort,GLshort))
 SDL_PROC_UNUSED(void,glColor3sv,(const GLshort*))
-SDL_PROC_UNUSED(void,glColor3ub,(GLubyte,GLubyte,GLubyte))
+SDL_PROC(void,glColor3ub,(GLubyte,GLubyte,GLubyte))
 SDL_PROC_UNUSED(void,glColor3ubv,(const GLubyte*))
 SDL_PROC_UNUSED(void,glColor3ui,(GLuint,GLuint,GLuint))
 SDL_PROC_UNUSED(void,glColor3uiv,(const GLuint*))
@@ -46,7 +46,7 @@ SDL_PROC_UNUSED(void,glColor4i,(GLint,GLint,GLint,GLint))
 SDL_PROC_UNUSED(void,glColor4iv,(const GLint*))
 SDL_PROC_UNUSED(void,glColor4s,(GLshort,GLshort,GLshort,GLshort))
 SDL_PROC_UNUSED(void,glColor4sv,(const GLshort*))
-SDL_PROC_UNUSED(void,glColor4ub,(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha))
+SDL_PROC(void,glColor4ub,(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha))
 SDL_PROC_UNUSED(void,glColor4ubv,(const GLubyte *v))
 SDL_PROC_UNUSED(void,glColor4ui,(GLuint red, GLuint green, GLuint blue, GLuint alpha))
 SDL_PROC_UNUSED(void,glColor4uiv,(const GLuint *v))
@@ -62,14 +62,14 @@ SDL_PROC_UNUSED(void,glCopyTexSubImage1D,(GLenum target, GLint level, GLint xoff
 SDL_PROC_UNUSED(void,glCopyTexSubImage2D,(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height))
 SDL_PROC_UNUSED(void,glCullFace,(GLenum mode))
 SDL_PROC_UNUSED(void,glDeleteLists,(GLuint list, GLsizei range))
-SDL_PROC_UNUSED(void,glDeleteTextures,(GLsizei n, const GLuint *textures))
+SDL_PROC(void,glDeleteTextures,(GLsizei n, const GLuint *textures))
 SDL_PROC_UNUSED(void,glDepthFunc,(GLenum func))
 SDL_PROC_UNUSED(void,glDepthMask,(GLboolean flag))
 SDL_PROC_UNUSED(void,glDepthRange,(GLclampd zNear, GLclampd zFar))
 SDL_PROC(void,glDisable,(GLenum cap))
 SDL_PROC_UNUSED(void,glDisableClientState,(GLenum array))
 SDL_PROC_UNUSED(void,glDrawArrays,(GLenum mode, GLint first, GLsizei count))
-SDL_PROC_UNUSED(void,glDrawBuffer,(GLenum mode))
+SDL_PROC(void,glDrawBuffer,(GLenum mode))
 SDL_PROC_UNUSED(void,glDrawElements,(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices))
 SDL_PROC_UNUSED(void,glDrawPixels,(GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels))
 SDL_PROC_UNUSED(void,glEdgeFlag,(GLboolean flag))
@@ -92,7 +92,7 @@ SDL_PROC_UNUSED(void,glEvalMesh2,(GLenum mode, GLint i1, GLint i2, GLint j1, GLi
 SDL_PROC_UNUSED(void,glEvalPoint1,(GLint i))
 SDL_PROC_UNUSED(void,glEvalPoint2,(GLint i, GLint j))
 SDL_PROC_UNUSED(void,glFeedbackBuffer,(GLsizei size, GLenum type, GLfloat *buffer))
-SDL_PROC_UNUSED(void,glFinish,(void))
+SDL_PROC(void,glFinish,(void))
 SDL_PROC(void,glFlush,(void))
 SDL_PROC_UNUSED(void,glFogf,(GLenum pname, GLfloat param))
 SDL_PROC_UNUSED(void,glFogfv,(GLenum pname, const GLfloat *params))
@@ -105,9 +105,9 @@ SDL_PROC(void,glGenTextures,(GLsizei n, GLuint *textures))
 SDL_PROC_UNUSED(void,glGetBooleanv,(GLenum pname, GLboolean *params))
 SDL_PROC_UNUSED(void,glGetClipPlane,(GLenum plane, GLdouble *equation))
 SDL_PROC_UNUSED(void,glGetDoublev,(GLenum pname, GLdouble *params))
-SDL_PROC_UNUSED(GLenum,glGetError,(void))
+SDL_PROC(GLenum,glGetError,(void))
 SDL_PROC_UNUSED(void,glGetFloatv,(GLenum pname, GLfloat *params))
-SDL_PROC_UNUSED(void,glGetIntegerv,(GLenum pname, GLint *params))
+SDL_PROC(void,glGetIntegerv,(GLenum pname, GLint *params))
 SDL_PROC_UNUSED(void,glGetLightfv,(GLenum light, GLenum pname, GLfloat *params))
 SDL_PROC_UNUSED(void,glGetLightiv,(GLenum light, GLenum pname, GLint *params))
 SDL_PROC_UNUSED(void,glGetMapdv,(GLenum target, GLenum query, GLdouble *v))
@@ -240,7 +240,7 @@ SDL_PROC_UNUSED(void,glRasterPos4iv,(const GLint *v))
 SDL_PROC_UNUSED(void,glRasterPos4s,(GLshort x, GLshort y, GLshort z, GLshort w))
 SDL_PROC_UNUSED(void,glRasterPos4sv,(const GLshort *v))
 SDL_PROC_UNUSED(void,glReadBuffer,(GLenum mode))
-SDL_PROC_UNUSED(void,glReadPixels,(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels))
+SDL_PROC(void,glReadPixels,(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels))
 SDL_PROC_UNUSED(void,glRectd,(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2))
 SDL_PROC_UNUSED(void,glRectdv,(const GLdouble *v1, const GLdouble *v2))
 SDL_PROC_UNUSED(void,glRectf,(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2))
@@ -311,7 +311,7 @@ SDL_PROC(void,glTexParameteri,(GLenum target, GLenum pname, GLint param))
 SDL_PROC_UNUSED(void,glTexParameteriv,(GLenum target, GLenum pname, const GLint *params))
 SDL_PROC_UNUSED(void,glTexSubImage1D,(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels))
 SDL_PROC(void,glTexSubImage2D,(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels))
-SDL_PROC_UNUSED(void,glTranslated,(GLdouble x, GLdouble y, GLdouble z))
+SDL_PROC(void,glTranslated,(GLdouble x, GLdouble y, GLdouble z))
 SDL_PROC_UNUSED(void,glTranslatef,(GLfloat x, GLfloat y, GLfloat z))
 SDL_PROC_UNUSED(void,glVertex2d,(GLdouble x, GLdouble y))
 SDL_PROC_UNUSED(void,glVertex2dv,(const GLdouble *v))

diff --git a/src/video/SDL_sysvideo.h b/src/video/SDL_sysvideo.h
@@ -119,7 +119,7 @@ struct SDL_VideoDevice {
 
 	/* The pixel format used when SDL_CreateRGBSurface creates SDL_HWSURFACEs with alpha */
 	SDL_PixelFormat* displayformatalphapixel;
-	
+
 	/* Allocates a surface in video memory */
 	int (*AllocHWSurface)(_THIS, SDL_Surface *surface);
 
@@ -407,6 +407,9 @@ extern VideoBootStrap AALIB_bootstrap;
 #if SDL_VIDEO_DRIVER_DUMMY
 extern VideoBootStrap DUMMY_bootstrap;
 #endif
+#if SDL_VIDEO_DRIVER_GLSDL
+extern VideoBootStrap glSDL_bootstrap;
+#endif
 
 /* This is the current video device */
 extern SDL_VideoDevice *current_video;

diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
@@ -122,6 +122,9 @@ static VideoBootStrap *bootstrap[] = {
 #endif
 #if SDL_VIDEO_DRIVER_DUMMY
 	&DUMMY_bootstrap,
+#endif
+#if SDL_VIDEO_DRIVER_GLSDL
+	&glSDL_bootstrap,
 #endif
 	NULL
 };
@@ -575,12 +578,6 @@ SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags)
 	int is_opengl;
 	SDL_GrabMode saved_grab;
 
-	/* Handle obsolete flags */
-	if ( (flags & SDL_OPENGLBLIT_OBSOLETE) == SDL_OPENGLBLIT_OBSOLETE ) {
-		SDL_SetError("SDL_OPENGLBLIT is no longer supported");
-		return(NULL);
-	}
-
 	/* Start up the video driver, if necessary..
 	   WARNING: This is the only function protected this way!
 	 */
@@ -613,8 +610,12 @@ SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags)
 	}
 
 	/* Check the requested flags */
-	/* There's no palette in > 8 bits-per-pixel mode */
+	if ( flags & SDL_INTERNALOPENGL ) {
+		SDL_SetError("SDL_INTERNALOPENGL is for internal use only");
+		return(NULL);
+	}
 	if ( video_bpp > 8 ) {
+		/* There's no palette in > 8 bits-per-pixel mode */
 		flags &= ~SDL_HWPALETTE;
 	}
 #if 0
@@ -632,6 +633,8 @@ SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags)
 	if ( is_opengl ) {
 		/* These flags are for 2D video modes only */
 		flags &= ~(SDL_HWSURFACE|SDL_DOUBLEBUF);
+		/* This flag tells the backends to treat the surface accordingly */
+		flags |= SDL_INTERNALOPENGL;
 	}
 
 	/* Reset the keyboard here so event callbacks can run */
@@ -674,7 +677,7 @@ SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags)
 #endif
 
 	    /* Sam - If we asked for OpenGL mode, and didn't get it, fail */
-	    if ( is_opengl && !(mode->flags & SDL_OPENGL) ) {
+	    if ( is_opengl && !(mode->flags & SDL_INTERNALOPENGL) ) {
 		mode = NULL;
 		SDL_SetError("OpenGL not available");
 	    }
@@ -752,7 +755,7 @@ SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags)
 
 #if SDL_VIDEO_OPENGL
 	/* Load GL symbols (before MakeCurrent, where we need glGetString). */
-	if ( flags & SDL_OPENGL ) {
+	if ( flags & SDL_INTERNALOPENGL ) {
 
 #if defined(__QNXNTO__) && (_NTO_VERSION < 630)
 #define __SDL_NOGETPROCADDR__
@@ -779,7 +782,7 @@ SDL_Surface * SDL_SetVideoMode (int width, int height, int bpp, Uint32 flags)
 #endif /* SDL_VIDEO_OPENGL */
 
 	/* If we're running OpenGL, make the context current */
-	if ( (video->screen->flags & SDL_OPENGL) &&
+	if ( (video->screen->flags & SDL_INTERNALOPENGL) &&
 	      video->GL_MakeCurrent ) {
 		if ( video->GL_MakeCurrent(this) < 0 ) {
 			return(NULL);
@@ -1431,7 +1434,7 @@ void SDL_GL_SwapBuffers(void)
 	SDL_VideoDevice *video = current_video;
 	SDL_VideoDevice *this = current_video;
 
-	if ( video->screen->flags & SDL_OPENGL ) {
+	if ( video->screen->flags & SDL_INTERNALOPENGL ) {
 		video->GL_SwapBuffers(this);
 	} else {
 		SDL_SetError("OpenGL video mode has not been set");

diff --git a/src/video/bwindow/SDL_BWin.h b/src/video/bwindow/SDL_BWin.h
@@ -219,7 +219,7 @@ class SDL_BWin : public BDirectWindow
 
 		retval = 0;
 		Lock();
-		if ( flags & SDL_OPENGL ) {
+		if ( flags & SDL_INTERNALOPENGL ) {
 #if SDL_VIDEO_OPENGL
 			if ( SDL_GLView == NULL ) {
 				SDL_GLView = new BGLView(Bounds(), "SDL GLView",

diff --git a/src/video/bwindow/SDL_sysvideo.cc b/src/video/bwindow/SDL_sysvideo.cc
@@ -525,7 +525,7 @@ SDL_Surface *BE_SetVideoMode(_THIS, SDL_Surface *current,
 		current->flags |= SDL_NOFRAME;
 		SDL_Win->SetLook(B_NO_BORDER_WINDOW_LOOK);
 	} else {
-		if ( (flags & SDL_RESIZABLE) && !(flags & SDL_OPENGL) )  {
+		if ( (flags & SDL_RESIZABLE) && !(flags & SDL_INTERNALOPENGL) )  {
 			current->flags |= SDL_RESIZABLE;
 			/* We don't want opaque resizing (TM). :-) */
 			SDL_Win->SetFlags(B_OUTLINE_RESIZE);
@@ -534,8 +534,8 @@ SDL_Surface *BE_SetVideoMode(_THIS, SDL_Surface *current,
 		}
 	}
 
-	if ( flags & SDL_OPENGL ) {
-		current->flags |= SDL_OPENGL;
+	if ( flags & SDL_INTERNALOPENGL ) {
+		current->flags |= SDL_INTERNALOPENGL;
 		current->pitch = 0;
 		current->pixels = NULL;
 		_this->UpdateRects = NULL;

diff --git a/src/video/cybergfx/SDL_cgximage.c b/src/video/cybergfx/SDL_cgximage.c
@@ -135,7 +135,7 @@ int CGX_ResizeImage(_THIS, SDL_Surface *screen, Uint32 flags)
 
 	CGX_DestroyImage(this, screen);
 
-	if ( flags & SDL_OPENGL ) {  /* No image when using GL */
+	if ( flags & SDL_INTERNALOPENGL ) {  /* No image when using GL */
         	retval = 0;
 	} else {
 		retval = CGX_SetupImage(this, screen);