haiku: add swrast driver

* This is pretty small and upkeep should be minimal.
* Currently fully working.
* Cannidate for 10.0.0 branch

Acked-by: Brian Paul <[email protected]>

1 files changed, 96 insertions, 0 deletions

diff --git a/src/mesa/drivers/haiku/swrast/SoftwareRast.h b/src/mesa/drivers/haiku/swrast/SoftwareRast.h
new file mode 100644
index 00000000000..8ef84938d6c
--- /dev/null
+++ b/src/mesa/drivers/haiku/swrast/SoftwareRast.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2006-2012, Haiku, Inc. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Jérôme Duval, [email protected]
+ * 		Philippe Houdoin, [email protected]
+ *		Artur Wyszynski, [email protected]
+ */
+#ifndef MESASOFTWARERENDERER_H
+#define MESASOFTWARERENDERER_H
+
+
+#define HAIKU_SWRAST_RENDERBUFFER_CLASS 0x737752 // swR
+
+
+#include "GLRenderer.h"
+
+extern "C" {
+#include "context.h"
+#include "main/version.h"
+#include "swrast/s_chan.h"
+#include "swrast/s_context.h"
+}
+
+
+class MesaSoftwareRast : public BGLRenderer {
+public:
+							MesaSoftwareRast(BGLView* view,
+								ulong bgl_options,
+								BGLDispatcher* dispatcher);
+	virtual					~MesaSoftwareRast();
+
+	virtual	void			LockGL();
+	virtual	void 			UnlockGL();
+
+	virtual	void 			SwapBuffers(bool VSync = false);
+	virtual	void			Draw(BRect updateRect);
+	virtual	status_t		CopyPixelsOut(BPoint source, BBitmap* dest);
+	virtual	status_t		CopyPixelsIn(BBitmap* source, BPoint dest);
+	virtual void			FrameResized(float width, float height);
+
+	virtual	void			EnableDirectMode(bool enabled);
+	virtual	void			DirectConnected(direct_buffer_info* info);
+
+private:
+	static	const GLubyte*	_GetString(gl_context* ctx, GLenum name);
+			void			_CheckResize(GLuint newWidth, GLuint newHeight);
+	static	void			_UpdateState(gl_context* ctx, GLuint newState);
+	static	void			_Flush(gl_context *ctx);
+
+	struct	swrast_renderbuffer* _NewRenderBuffer(bool front);
+			status_t		_SetupRenderBuffer(struct gl_renderbuffer* rb,
+								color_space colorSpace);
+
+/* Mesa callbacks */
+	static	void			_RenderBufferDelete(struct gl_context *ctx,
+								struct gl_renderbuffer* rb);
+	static	GLboolean		_RenderBufferStorage(gl_context* ctx,
+								struct gl_renderbuffer* render,
+								GLenum internalFormat,
+								GLuint width, GLuint height);
+	static	GLboolean		_RenderBufferStorageMalloc(gl_context* ctx,
+								struct gl_renderbuffer* render,
+								GLenum internalFormat,
+								GLuint width, GLuint height);
+	static	void			_RenderBufferMap(gl_context *ctx,
+								struct gl_renderbuffer *rb,
+								GLuint x, GLuint y, GLuint w, GLuint h,
+								GLbitfield mode, GLubyte **mapOut,
+								GLint *rowStrideOut);
+
+			void			_AllocateBitmap();
+			void			_CopyToDirect();
+
+			BBitmap*		fBitmap;
+			bool			fDirectModeEnabled;
+			direct_buffer_info* fInfo;
+			BLocker			fInfoLocker;
+			ulong			fOptions;
+
+			gl_context*		fContext;
+			gl_config*		fVisual;
+
+			struct gl_framebuffer* fFrameBuffer;
+			struct swrast_renderbuffer* fFrontRenderBuffer;
+			struct swrast_renderbuffer* fBackRenderBuffer;
+
+			GLuint			fWidth;
+			GLuint			fHeight;
+			color_space		fColorSpace;
+
+			void*			fRowAddr[SWRAST_MAX_HEIGHT];
+};
+
+#endif	// MESASOFTWARERENDERER_H