/**

 * FreeRDP: A Remote Desktop Protocol Implementation

 * Graphical Objects

 *

 * Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <winpr/crt.h>

#include <freerdp/graphics.h>

#include "graphics.h"

/* Bitmap Class */

rdpBitmap* Bitmap_Alloc(rdpContext* context)

{

	rdpBitmap* bitmap;

	rdpGraphics* graphics;

	graphics = context->graphics;

	bitmap = (rdpBitmap*)calloc(1, graphics->Bitmap_Prototype->size);

	if (bitmap)

	{

		CopyMemory(bitmap, graphics->Bitmap_Prototype, sizeof(rdpBitmap));

		bitmap->data = NULL;

	}

	return bitmap;

}

static BOOL Bitmap_New(rdpContext* context, rdpBitmap* bitmap)

{

	if (!bitmap || !context)

		return FALSE;

	*bitmap = *context->graphics->Bitmap_Prototype;

	return TRUE;

}

void Bitmap_Free(rdpContext* context, rdpBitmap* bitmap)

{

	if (bitmap)

		bitmap->Free(context, bitmap);

}

BOOL Bitmap_SetRectangle(rdpBitmap* bitmap, UINT16 left, UINT16 top, UINT16 right, UINT16 bottom)

{

	if (!bitmap)

		return FALSE;

	bitmap->left = left;

	bitmap->top = top;

	bitmap->right = right;

	bitmap->bottom = bottom;

	return TRUE;

}

BOOL Bitmap_SetDimensions(rdpBitmap* bitmap, UINT16 width, UINT16 height)

{

	if (!bitmap)

		return FALSE;

	bitmap->right = bitmap->left + width - 1;

	bitmap->bottom = bitmap->top + height - 1;

	bitmap->width = width;

	bitmap->height = height;

	return TRUE;

}

void graphics_register_bitmap(rdpGraphics* graphics, rdpBitmap* bitmap)

{

	CopyMemory(graphics->Bitmap_Prototype, bitmap, sizeof(rdpBitmap));

}

/* Pointer Class */

rdpPointer* Pointer_Alloc(rdpContext* context)

{

	rdpPointer* pointer;

	rdpGraphics* graphics;

	graphics = context->graphics;

	pointer = (rdpPointer*)calloc(1, graphics->Pointer_Prototype->size);

	if (pointer)

	{

		CopyMemory(pointer, graphics->Pointer_Prototype, sizeof(rdpPointer));

	}

	return pointer;

}

static BOOL Pointer_New(rdpContext* context, rdpPointer* pointer)

{

	rdpPointer* proto;

	if (!context || !context->graphics || !context->graphics->Pointer_Prototype)

		return FALSE;

	proto = context->graphics->Pointer_Prototype;

	*pointer = *proto;

	return TRUE;

}

/* static method */

void graphics_register_pointer(rdpGraphics* graphics, rdpPointer* pointer)

{

	CopyMemory(graphics->Pointer_Prototype, pointer, sizeof(rdpPointer));

}

/* Glyph Class */

rdpGlyph* Glyph_Alloc(rdpContext* context, INT32 x, INT32 y, UINT32 cx, UINT32 cy, UINT32 cb,

                      const BYTE* aj)

{

	rdpGlyph* glyph;

	rdpGraphics* graphics;

	if (!context || !context->graphics)

		return NULL;

	graphics = context->graphics;

	if (!graphics->Glyph_Prototype)

		return NULL;

	glyph = (rdpGlyph*)calloc(1, graphics->Glyph_Prototype->size);

	if (!glyph)

		return NULL;

	*glyph = *graphics->Glyph_Prototype;

	glyph->cb = cb;

	glyph->cx = cx;

	glyph->cy = cy;

	glyph->x = x;

	glyph->y = y;

	glyph->aj = malloc(glyph->cb);

	if (!glyph->aj)

	{

		free(glyph);

		return NULL;

	}

	CopyMemory(glyph->aj, aj, cb);

	if (!glyph->New(context, glyph))

	{

		free(glyph->aj);

		free(glyph);

		return NULL;

	}

	return glyph;

}

void graphics_register_glyph(rdpGraphics* graphics, rdpGlyph* glyph)

{

	CopyMemory(graphics->Glyph_Prototype, glyph, sizeof(rdpGlyph));

}

/* Graphics Module */

rdpGraphics* graphics_new(rdpContext* context)

{

	rdpGraphics* graphics;

	graphics = (rdpGraphics*)calloc(1, sizeof(rdpGraphics));

	if (graphics)

	{

		graphics->context = context;

		graphics->Bitmap_Prototype = (rdpBitmap*)calloc(1, sizeof(rdpBitmap));

		if (!graphics->Bitmap_Prototype)

		{

			free(graphics);

			return NULL;

		}

		graphics->Bitmap_Prototype->size = sizeof(rdpBitmap);

		graphics->Bitmap_Prototype->New = Bitmap_New;

		graphics->Bitmap_Prototype->Free = NULL;

		graphics->Pointer_Prototype = (rdpPointer*)calloc(1, sizeof(rdpPointer));

		if (!graphics->Pointer_Prototype)

		{

			free(graphics->Bitmap_Prototype);

			free(graphics);

			return NULL;

		}

		graphics->Pointer_Prototype->size = sizeof(rdpPointer);

		graphics->Pointer_Prototype->New = Pointer_New;

		graphics->Pointer_Prototype->Free = NULL;

		graphics->Glyph_Prototype = (rdpGlyph*)calloc(1, sizeof(rdpGlyph));

		if (!graphics->Glyph_Prototype)

		{

			free(graphics->Pointer_Prototype);

			free(graphics->Bitmap_Prototype);

			free(graphics);

			return NULL;

		}

		graphics->Glyph_Prototype->size = sizeof(rdpGlyph);

	}

	return graphics;

}

void graphics_free(rdpGraphics* graphics)

{

	if (graphics)

	{

		free(graphics->Bitmap_Prototype);

		free(graphics->Pointer_Prototype);

		free(graphics->Glyph_Prototype);

		free(graphics);

	}

}