1 files changed, 95 insertions, 0 deletions
diff --git a/src/VBox/GuestHost/OpenGL/include/state/cr_buffer.h b/src/VBox/GuestHost/OpenGL/include/state/cr_buffer.h
new file mode 100644
index 00000000..7a57aae9
--- /dev/null
+++ b/src/VBox/GuestHost/OpenGL/include/state/cr_buffer.h
@@ -0,0 +1,95 @@
+/* Copyright (c) 2001, Stanford University
+ * All rights reserved.
+ *
+ * See the file LICENSE.txt for information on redistributing this software.
+ */
+
+#ifndef CR_STATE_BUFFER_H
+#define CR_STATE_BUFFER_H
+
+#include "state/cr_statetypes.h"
+
+#include <iprt/cdefs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+	CRbitvalue	dirty[CR_MAX_BITARRAY];
+	CRbitvalue	enable[CR_MAX_BITARRAY];
+	CRbitvalue	alphaFunc[CR_MAX_BITARRAY];
+	CRbitvalue	depthFunc[CR_MAX_BITARRAY];
+	CRbitvalue	blendFunc[CR_MAX_BITARRAY];
+	CRbitvalue	logicOp[CR_MAX_BITARRAY];
+	CRbitvalue	indexLogicOp[CR_MAX_BITARRAY];
+	CRbitvalue	drawBuffer[CR_MAX_BITARRAY];
+	CRbitvalue	readBuffer[CR_MAX_BITARRAY];
+	CRbitvalue	indexMask[CR_MAX_BITARRAY];
+	CRbitvalue	colorWriteMask[CR_MAX_BITARRAY];
+	CRbitvalue	clearColor[CR_MAX_BITARRAY];
+	CRbitvalue	clearIndex[CR_MAX_BITARRAY];
+	CRbitvalue	clearDepth[CR_MAX_BITARRAY];
+	CRbitvalue	clearAccum[CR_MAX_BITARRAY];
+	CRbitvalue	depthMask[CR_MAX_BITARRAY];
+#ifdef CR_EXT_blend_color
+	CRbitvalue	blendColor[CR_MAX_BITARRAY];
+#endif
+#if defined(CR_EXT_blend_minmax) || defined(CR_EXT_blend_subtract) || defined(CR_EXT_blend_logic_op)
+	CRbitvalue	blendEquation[CR_MAX_BITARRAY];
+#endif
+#if defined(CR_EXT_blend_func_separate)
+	CRbitvalue	blendFuncSeparate[CR_MAX_BITARRAY];
+#endif
+} CRBufferBits;
+
+typedef struct {
+	GLboolean	depthTest;
+	GLboolean	blend;
+	GLboolean	alphaTest;
+	GLboolean	logicOp;
+	GLboolean	indexLogicOp;
+	GLboolean	dither;
+	GLboolean	depthMask;
+
+	GLenum		alphaTestFunc;
+	GLfloat		alphaTestRef;
+	GLenum		depthFunc;
+	GLenum		blendSrcRGB;
+	GLenum		blendDstRGB;
+	GLenum		blendSrcA;
+	GLenum		blendDstA;
+	GLenum		logicOpMode;
+	GLenum		drawBuffer;
+	GLenum		readBuffer;
+	GLint		indexWriteMask;
+	GLcolorb	colorWriteMask;
+	GLcolorf	colorClearValue;
+	GLfloat 	indexClearValue;
+	GLdefault	depthClearValue;
+	GLcolorf	accumClearValue;
+#ifdef CR_EXT_blend_color
+	GLcolorf	blendColor;
+#endif
+#if defined(CR_EXT_blend_minmax) || defined(CR_EXT_blend_subtract)
+	GLenum		blendEquation;
+#endif
+
+    GLint       width, height;
+    GLint       storedWidth, storedHeight;
+    GLvoid      *pFrontImg;
+    GLvoid      *pBackImg;
+} CRBufferState;
+
+DECLEXPORT(void) crStateBufferInit(CRContext *ctx);
+
+DECLEXPORT(void) crStateBufferDiff(CRBufferBits *bb, CRbitvalue *bitID,
+                                   CRContext *fromCtx, CRContext *toCtx);
+DECLEXPORT(void) crStateBufferSwitch(CRBufferBits *bb, CRbitvalue *bitID, 
+                                     CRContext *fromCtx, CRContext *toCtx);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CR_STATE_BUFFER_H */