FreeRDP/libfreerdp/gdi/graphics.c

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/**
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* 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/gdi/dc.h>
#include <freerdp/gdi/brush.h>
#include <freerdp/gdi/shape.h>
#include <freerdp/gdi/region.h>
#include <freerdp/gdi/bitmap.h>
#include <freerdp/codec/jpeg.h>
#include <freerdp/codec/rfx.h>
#include <freerdp/gdi/drawing.h>
#include <freerdp/gdi/clipping.h>
#include <freerdp/codec/color.h>
#include <freerdp/codec/bitmap.h>
#include <freerdp/codec/bitmap.h>
#include <freerdp/cache/glyph.h>
#include "graphics.h"
/* Bitmap Class */
HGDI_BITMAP gdi_create_bitmap(rdpGdi* gdi, int width, int height, int bpp, BYTE* data)
{
BYTE* bmpData;
HGDI_BITMAP bitmap;
bmpData = freerdp_image_convert(data, NULL, width, height, gdi->srcBpp, bpp, gdi->clrconv);
bitmap = gdi_CreateBitmap(width, height, gdi->dstBpp, bmpData);
return bitmap;
}
void gdi_Bitmap_New(rdpContext* context, rdpBitmap* bitmap)
{
gdiBitmap* gdi_bitmap;
rdpGdi* gdi = context->gdi;
gdi_bitmap = (gdiBitmap*) bitmap;
gdi_bitmap->hdc = gdi_CreateCompatibleDC(gdi->hdc);
if (bitmap->data == NULL)
gdi_bitmap->bitmap = gdi_CreateCompatibleBitmap(gdi->hdc, bitmap->width, bitmap->height);
else
gdi_bitmap->bitmap = gdi_create_bitmap(gdi, bitmap->width, bitmap->height, gdi->dstBpp, bitmap->data);
gdi_SelectObject(gdi_bitmap->hdc, (HGDIOBJECT) gdi_bitmap->bitmap);
gdi_bitmap->org_bitmap = NULL;
}
void gdi_Bitmap_Free(rdpContext* context, rdpBitmap* bitmap)
{
gdiBitmap* gdi_bitmap = (gdiBitmap*) bitmap;
if (gdi_bitmap != NULL)
{
gdi_SelectObject(gdi_bitmap->hdc, (HGDIOBJECT) gdi_bitmap->org_bitmap);
gdi_DeleteObject((HGDIOBJECT) gdi_bitmap->bitmap);
gdi_DeleteDC(gdi_bitmap->hdc);
}
}
void gdi_Bitmap_Paint(rdpContext* context, rdpBitmap* bitmap)
{
int width, height;
gdiBitmap* gdi_bitmap = (gdiBitmap*) bitmap;
width = bitmap->right - bitmap->left + 1;
height = bitmap->bottom - bitmap->top + 1;
gdi_BitBlt(context->gdi->primary->hdc, bitmap->left, bitmap->top,
width, height, gdi_bitmap->hdc, 0, 0, GDI_SRCCOPY);
}
void gdi_Bitmap_Decompress(rdpContext* context, rdpBitmap* bitmap,
BYTE* data, int width, int height, int bpp, int length,
BOOL compressed, int codec_id)
{
UINT16 size;
RFX_MESSAGE* msg;
BYTE* src;
BYTE* dst;
int yindex;
int xindex;
rdpGdi* gdi;
BOOL status;
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size = width * height * (bpp + 7) / 8;
if (bitmap->data == NULL)
bitmap->data = (BYTE*) malloc(size);
else
bitmap->data = (BYTE*) realloc(bitmap->data, size);
switch (codec_id)
{
case RDP_CODEC_ID_NSCODEC:
printf("gdi_Bitmap_Decompress: nsc not done\n");
break;
case RDP_CODEC_ID_REMOTEFX:
gdi = context->gdi;
rfx_context_set_pixel_format(gdi->rfx_context, RDP_PIXEL_FORMAT_B8G8R8A8);
msg = rfx_process_message(gdi->rfx_context, data, length);
if (msg == NULL)
{
printf("gdi_Bitmap_Decompress: rfx Decompression Failed\n");
}
else
{
for (yindex = 0; yindex < height; yindex++)
{
src = msg->tiles[0]->data + yindex * 64 * 4;
dst = bitmap->data + yindex * width * 3;
for (xindex = 0; xindex < width; xindex++)
{
*(dst++) = *(src++);
*(dst++) = *(src++);
*(dst++) = *(src++);
src++;
}
}
rfx_message_free(gdi->rfx_context, msg);
}
break;
case RDP_CODEC_ID_JPEG:
#ifdef WITH_JPEG
if (!jpeg_decompress(data, bitmap->data, width, height, length, bpp))
{
printf("gdi_Bitmap_Decompress: jpeg Decompression Failed\n");
}
#endif
break;
default:
if (compressed)
{
status = bitmap_decompress(data, bitmap->data, width, height, length, bpp, bpp);
if (status == FALSE)
{
printf("gdi_Bitmap_Decompress: Bitmap Decompression Failed\n");
}
}
else
{
freerdp_image_flip(data, bitmap->data, width, height, bpp);
}
break;
}
bitmap->width = width;
bitmap->height = height;
bitmap->compressed = FALSE;
bitmap->length = size;
bitmap->bpp = bpp;
}
void gdi_Bitmap_SetSurface(rdpContext* context, rdpBitmap* bitmap, BOOL primary)
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{
rdpGdi* gdi = context->gdi;
if (primary)
gdi->drawing = gdi->primary;
else
gdi->drawing = (gdiBitmap*) bitmap;
}
/* Glyph Class */
void gdi_Glyph_New(rdpContext* context, rdpGlyph* glyph)
{
BYTE* data;
gdiGlyph* gdi_glyph;
gdi_glyph = (gdiGlyph*) glyph;
gdi_glyph->hdc = gdi_GetDC();
gdi_glyph->hdc->bytesPerPixel = 1;
gdi_glyph->hdc->bitsPerPixel = 1;
data = freerdp_glyph_convert(glyph->cx, glyph->cy, glyph->aj);
gdi_glyph->bitmap = gdi_CreateBitmap(glyph->cx, glyph->cy, 1, data);
gdi_glyph->bitmap->bytesPerPixel = 1;
gdi_glyph->bitmap->bitsPerPixel = 1;
gdi_SelectObject(gdi_glyph->hdc, (HGDIOBJECT) gdi_glyph->bitmap);
gdi_glyph->org_bitmap = NULL;
}
void gdi_Glyph_Free(rdpContext* context, rdpGlyph* glyph)
{
gdiGlyph* gdi_glyph;
gdi_glyph = (gdiGlyph*) glyph;
if (gdi_glyph != 0)
{
gdi_SelectObject(gdi_glyph->hdc, (HGDIOBJECT) gdi_glyph->org_bitmap);
gdi_DeleteObject((HGDIOBJECT) gdi_glyph->bitmap);
gdi_DeleteDC(gdi_glyph->hdc);
}
}
void gdi_Glyph_Draw(rdpContext* context, rdpGlyph* glyph, int x, int y)
{
gdiGlyph* gdi_glyph;
rdpGdi* gdi = context->gdi;
gdi_glyph = (gdiGlyph*) glyph;
gdi_BitBlt(gdi->drawing->hdc, x, y, gdi_glyph->bitmap->width,
gdi_glyph->bitmap->height, gdi_glyph->hdc, 0, 0, GDI_DSPDxax);
}
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void gdi_Glyph_BeginDraw(rdpContext* context, int x, int y, int width, int height, UINT32 bgcolor, UINT32 fgcolor)
{
GDI_RECT rect;
HGDI_BRUSH brush;
rdpGdi* gdi = context->gdi;
bgcolor = freerdp_color_convert_var_bgr(bgcolor, gdi->srcBpp, 32, gdi->clrconv);
fgcolor = freerdp_color_convert_var_bgr(fgcolor, gdi->srcBpp, 32, gdi->clrconv);
gdi_CRgnToRect(x, y, width, height, &rect);
brush = gdi_CreateSolidBrush(fgcolor);
gdi_FillRect(gdi->drawing->hdc, &rect, brush);
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gdi_DeleteObject((HGDIOBJECT) brush);
gdi->textColor = gdi_SetTextColor(gdi->drawing->hdc, bgcolor);
}
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void gdi_Glyph_EndDraw(rdpContext* context, int x, int y, int width, int height, UINT32 bgcolor, UINT32 fgcolor)
{
rdpGdi* gdi = context->gdi;
bgcolor = freerdp_color_convert_var_bgr(bgcolor, gdi->srcBpp, 32, gdi->clrconv);
gdi->textColor = gdi_SetTextColor(gdi->drawing->hdc, bgcolor);
}
/* Graphics Module */
void gdi_register_graphics(rdpGraphics* graphics)
{
rdpBitmap* bitmap;
rdpGlyph* glyph;
bitmap = (rdpBitmap*) malloc(sizeof(rdpBitmap));
ZeroMemory(bitmap, sizeof(rdpBitmap));
bitmap->size = sizeof(gdiBitmap);
bitmap->New = gdi_Bitmap_New;
bitmap->Free = gdi_Bitmap_Free;
bitmap->Paint = gdi_Bitmap_Paint;
bitmap->Decompress = gdi_Bitmap_Decompress;
bitmap->SetSurface = gdi_Bitmap_SetSurface;
graphics_register_bitmap(graphics, bitmap);
free(bitmap);
glyph = (rdpGlyph*) malloc(sizeof(rdpGlyph));
ZeroMemory(glyph, sizeof(rdpGlyph));
glyph->size = sizeof(gdiGlyph);
glyph->New = gdi_Glyph_New;
glyph->Free = gdi_Glyph_Free;
glyph->Draw = gdi_Glyph_Draw;
glyph->BeginDraw = gdi_Glyph_BeginDraw;
glyph->EndDraw = gdi_Glyph_EndDraw;
graphics_register_glyph(graphics, glyph);
free(glyph);
}