diff options
Diffstat (limited to '')
| -rw-r--r-- | libfreerdp/gdi/graphics.c | 463 |
1 files changed, 463 insertions, 0 deletions
diff --git a/libfreerdp/gdi/graphics.c b/libfreerdp/gdi/graphics.c new file mode 100644 index 0000000..28860cf --- /dev/null +++ b/libfreerdp/gdi/graphics.c @@ -0,0 +1,463 @@ +/** + * FreeRDP: A Remote Desktop Protocol Implementation + * Graphical Objects + * + * Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com> + * Copyright 2016 Armin Novak <armin.novak@thincast.com> + * Copyright 2016 Thincast Technologies GmbH + * + * 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. + */ + +#include <freerdp/config.h> + +#include <winpr/crt.h> + +#include <freerdp/log.h> +#include <freerdp/freerdp.h> +#include <freerdp/gdi/dc.h> +#include <freerdp/gdi/shape.h> +#include <freerdp/gdi/region.h> +#include <freerdp/gdi/bitmap.h> + +#include "clipping.h" +#include "drawing.h" +#include "brush.h" +#include "graphics.h" + +#define TAG FREERDP_TAG("gdi") +/* Bitmap Class */ + +HGDI_BITMAP gdi_create_bitmap(rdpGdi* gdi, UINT32 nWidth, UINT32 nHeight, UINT32 SrcFormat, + BYTE* data) +{ + UINT32 nSrcStep = 0; + UINT32 nDstStep = 0; + BYTE* pSrcData = NULL; + BYTE* pDstData = NULL; + HGDI_BITMAP bitmap = NULL; + + if (!gdi) + return NULL; + + nDstStep = nWidth * FreeRDPGetBytesPerPixel(gdi->dstFormat); + pDstData = winpr_aligned_malloc(1ull * nHeight * nDstStep, 16); + + if (!pDstData) + return NULL; + + pSrcData = data; + nSrcStep = nWidth * FreeRDPGetBytesPerPixel(SrcFormat); + + if (!freerdp_image_copy(pDstData, gdi->dstFormat, nDstStep, 0, 0, nWidth, nHeight, pSrcData, + SrcFormat, nSrcStep, 0, 0, &gdi->palette, FREERDP_FLIP_NONE)) + { + winpr_aligned_free(pDstData); + return NULL; + } + + bitmap = gdi_CreateBitmap(nWidth, nHeight, gdi->dstFormat, pDstData); + return bitmap; +} + +static BOOL gdi_Bitmap_New(rdpContext* context, rdpBitmap* bitmap) +{ + gdiBitmap* gdi_bitmap = NULL; + rdpGdi* gdi = context->gdi; + gdi_bitmap = (gdiBitmap*)bitmap; + gdi_bitmap->hdc = gdi_CreateCompatibleDC(gdi->hdc); + + if (!gdi_bitmap->hdc) + return FALSE; + + if (!bitmap->data) + gdi_bitmap->bitmap = gdi_CreateCompatibleBitmap(gdi->hdc, bitmap->width, bitmap->height); + else + { + UINT32 format = bitmap->format; + gdi_bitmap->bitmap = + gdi_create_bitmap(gdi, bitmap->width, bitmap->height, format, bitmap->data); + } + + if (!gdi_bitmap->bitmap) + { + gdi_DeleteDC(gdi_bitmap->hdc); + gdi_bitmap->hdc = NULL; + return FALSE; + } + + gdi_bitmap->hdc->format = gdi_bitmap->bitmap->format; + gdi_SelectObject(gdi_bitmap->hdc, (HGDIOBJECT)gdi_bitmap->bitmap); + gdi_bitmap->org_bitmap = NULL; + return TRUE; +} + +static void gdi_Bitmap_Free(rdpContext* context, rdpBitmap* bitmap) +{ + gdiBitmap* gdi_bitmap = (gdiBitmap*)bitmap; + + if (gdi_bitmap) + { + if (gdi_bitmap->hdc) + gdi_SelectObject(gdi_bitmap->hdc, (HGDIOBJECT)gdi_bitmap->org_bitmap); + + gdi_DeleteObject((HGDIOBJECT)gdi_bitmap->bitmap); + gdi_DeleteDC(gdi_bitmap->hdc); + winpr_aligned_free(bitmap->data); + } + + free(bitmap); +} + +static BOOL gdi_Bitmap_Paint(rdpContext* context, rdpBitmap* bitmap) +{ + gdiBitmap* gdi_bitmap = (gdiBitmap*)bitmap; + UINT32 width = bitmap->right - bitmap->left + 1; + UINT32 height = bitmap->bottom - bitmap->top + 1; + return gdi_BitBlt(context->gdi->primary->hdc, bitmap->left, bitmap->top, width, height, + gdi_bitmap->hdc, 0, 0, GDI_SRCCOPY, &context->gdi->palette); +} + +static BOOL gdi_Bitmap_Decompress(rdpContext* context, rdpBitmap* bitmap, const BYTE* pSrcData, + UINT32 DstWidth, UINT32 DstHeight, UINT32 bpp, UINT32 length, + BOOL compressed, UINT32 codecId) +{ + int status = 0; + UINT32 SrcSize = length; + rdpGdi* gdi = context->gdi; + UINT32 size = DstWidth * DstHeight; + bitmap->compressed = FALSE; + bitmap->format = gdi->dstFormat; + + if ((FreeRDPGetBytesPerPixel(bitmap->format) == 0) || (DstWidth == 0) || (DstHeight == 0) || + (DstWidth > UINT32_MAX / DstHeight) || + (size > (UINT32_MAX / FreeRDPGetBytesPerPixel(bitmap->format)))) + { + WLog_ERR(TAG, "invalid input data"); + return FALSE; + } + + size *= FreeRDPGetBytesPerPixel(bitmap->format); + bitmap->length = size; + bitmap->data = (BYTE*)winpr_aligned_malloc(bitmap->length, 16); + + if (!bitmap->data) + return FALSE; + + if (compressed) + { + if ((codecId == RDP_CODEC_ID_REMOTEFX) || (codecId == RDP_CODEC_ID_IMAGE_REMOTEFX)) + { + REGION16 invalidRegion; + region16_init(&invalidRegion); + + if (!rfx_process_message(context->codecs->rfx, pSrcData, SrcSize, bitmap->left, + bitmap->top, bitmap->data, bitmap->format, gdi->stride, + gdi->height, &invalidRegion)) + { + WLog_ERR(TAG, "rfx_process_message failed"); + return FALSE; + } + + status = 1; + } + else if (codecId == RDP_CODEC_ID_NSCODEC) + { + status = nsc_process_message(context->codecs->nsc, 32, DstWidth, DstHeight, pSrcData, + SrcSize, bitmap->data, bitmap->format, 0, 0, 0, DstWidth, + DstHeight, FREERDP_FLIP_VERTICAL); + + if (status < 1) + { + WLog_ERR(TAG, "nsc_process_message failed"); + return FALSE; + } + + return freerdp_image_copy(bitmap->data, bitmap->format, 0, 0, 0, DstWidth, DstHeight, + pSrcData, PIXEL_FORMAT_XRGB32, 0, 0, 0, &gdi->palette, + FREERDP_FLIP_VERTICAL); + } + else if (bpp < 32) + { + if (!interleaved_decompress(context->codecs->interleaved, pSrcData, SrcSize, DstWidth, + DstHeight, bpp, bitmap->data, bitmap->format, 0, 0, 0, + DstWidth, DstHeight, &gdi->palette)) + { + WLog_ERR(TAG, "interleaved_decompress failed"); + return FALSE; + } + } + else + { + const BOOL fidelity = + freerdp_settings_get_bool(context->settings, FreeRDP_DrawAllowDynamicColorFidelity); + freerdp_planar_switch_bgr(context->codecs->planar, fidelity); + if (!planar_decompress(context->codecs->planar, pSrcData, SrcSize, DstWidth, DstHeight, + bitmap->data, bitmap->format, 0, 0, 0, DstWidth, DstHeight, + TRUE)) + { + WLog_ERR(TAG, "planar_decompress failed"); + return FALSE; + } + } + } + else + { + const UINT32 SrcFormat = gdi_get_pixel_format(bpp); + const size_t sbpp = FreeRDPGetBytesPerPixel(SrcFormat); + const size_t dbpp = FreeRDPGetBytesPerPixel(bitmap->format); + + if ((sbpp == 0) || (dbpp == 0)) + return FALSE; + else + { + const size_t dstSize = SrcSize * dbpp / sbpp; + + if (dstSize < bitmap->length) + { + WLog_ERR(TAG, "dstSize %" PRIuz " < bitmap->length %" PRIu32, dstSize, + bitmap->length); + return FALSE; + } + } + + if (!freerdp_image_copy(bitmap->data, bitmap->format, 0, 0, 0, DstWidth, DstHeight, + pSrcData, SrcFormat, 0, 0, 0, &gdi->palette, FREERDP_FLIP_VERTICAL)) + { + WLog_ERR(TAG, "freerdp_image_copy failed"); + return FALSE; + } + } + + return TRUE; +} + +static BOOL gdi_Bitmap_SetSurface(rdpContext* context, rdpBitmap* bitmap, BOOL primary) +{ + rdpGdi* gdi = NULL; + + if (!context) + return FALSE; + + gdi = context->gdi; + + if (!gdi) + return FALSE; + + if (primary) + gdi->drawing = gdi->primary; + else + gdi->drawing = (gdiBitmap*)bitmap; + + return TRUE; +} + +/* Glyph Class */ +static BOOL gdi_Glyph_New(rdpContext* context, rdpGlyph* glyph) +{ + BYTE* data = NULL; + gdiGlyph* gdi_glyph = NULL; + + if (!context || !glyph) + return FALSE; + + gdi_glyph = (gdiGlyph*)glyph; + gdi_glyph->hdc = gdi_GetDC(); + + if (!gdi_glyph->hdc) + return FALSE; + + gdi_glyph->hdc->format = PIXEL_FORMAT_MONO; + data = freerdp_glyph_convert(glyph->cx, glyph->cy, glyph->aj); + + if (!data) + { + gdi_DeleteDC(gdi_glyph->hdc); + return FALSE; + } + + gdi_glyph->bitmap = gdi_CreateBitmap(glyph->cx, glyph->cy, PIXEL_FORMAT_MONO, data); + + if (!gdi_glyph->bitmap) + { + gdi_DeleteDC(gdi_glyph->hdc); + winpr_aligned_free(data); + return FALSE; + } + + gdi_SelectObject(gdi_glyph->hdc, (HGDIOBJECT)gdi_glyph->bitmap); + gdi_glyph->org_bitmap = NULL; + return TRUE; +} + +static void gdi_Glyph_Free(rdpContext* context, rdpGlyph* glyph) +{ + gdiGlyph* gdi_glyph = NULL; + gdi_glyph = (gdiGlyph*)glyph; + + if (gdi_glyph) + { + gdi_SelectObject(gdi_glyph->hdc, (HGDIOBJECT)gdi_glyph->org_bitmap); + gdi_DeleteObject((HGDIOBJECT)gdi_glyph->bitmap); + gdi_DeleteDC(gdi_glyph->hdc); + free(glyph->aj); + free(glyph); + } +} + +static BOOL gdi_Glyph_Draw(rdpContext* context, const rdpGlyph* glyph, INT32 x, INT32 y, INT32 w, + INT32 h, INT32 sx, INT32 sy, BOOL fOpRedundant) +{ + const gdiGlyph* gdi_glyph = NULL; + rdpGdi* gdi = NULL; + HGDI_BRUSH brush = NULL; + BOOL rc = FALSE; + + if (!context || !glyph) + return FALSE; + + gdi = context->gdi; + gdi_glyph = (const gdiGlyph*)glyph; + + if (!fOpRedundant) + { + GDI_RECT rect = { 0 }; + + if (x > 0) + rect.left = x; + + if (y > 0) + rect.top = y; + + if (x + w > 0) + rect.right = x + w - 1; + + if (y + h > 0) + rect.bottom = y + h - 1; + + if ((rect.left < rect.right) && (rect.top < rect.bottom)) + { + brush = gdi_CreateSolidBrush(gdi->drawing->hdc->bkColor); + + if (!brush) + return FALSE; + + gdi_FillRect(gdi->drawing->hdc, &rect, brush); + gdi_DeleteObject((HGDIOBJECT)brush); + } + } + + brush = gdi_CreateSolidBrush(gdi->drawing->hdc->textColor); + + if (!brush) + return FALSE; + + gdi_SelectObject(gdi->drawing->hdc, (HGDIOBJECT)brush); + rc = gdi_BitBlt(gdi->drawing->hdc, x, y, w, h, gdi_glyph->hdc, sx, sy, GDI_GLYPH_ORDER, + &context->gdi->palette); + gdi_DeleteObject((HGDIOBJECT)brush); + return rc; +} + +static BOOL gdi_Glyph_BeginDraw(rdpContext* context, INT32 x, INT32 y, INT32 width, INT32 height, + UINT32 bgcolor, UINT32 fgcolor, BOOL fOpRedundant) +{ + rdpGdi* gdi = NULL; + + if (!context || !context->gdi) + return FALSE; + + gdi = context->gdi; + + if (!gdi->drawing || !gdi->drawing->hdc) + return FALSE; + + if (!fOpRedundant) + { + if (!gdi_decode_color(gdi, bgcolor, &bgcolor, NULL)) + return FALSE; + + if (!gdi_decode_color(gdi, fgcolor, &fgcolor, NULL)) + return FALSE; + + gdi_SetClipRgn(gdi->drawing->hdc, x, y, width, height); + gdi_SetTextColor(gdi->drawing->hdc, bgcolor); + gdi_SetBkColor(gdi->drawing->hdc, fgcolor); + + if (1) + { + GDI_RECT rect = { 0 }; + HGDI_BRUSH brush = gdi_CreateSolidBrush(fgcolor); + + if (!brush) + return FALSE; + + if (x > 0) + rect.left = x; + + if (y > 0) + rect.top = y; + + rect.right = x + width - 1; + rect.bottom = y + height - 1; + + if ((x + width > rect.left) && (y + height > rect.top)) + gdi_FillRect(gdi->drawing->hdc, &rect, brush); + + gdi_DeleteObject((HGDIOBJECT)brush); + } + + return gdi_SetNullClipRgn(gdi->drawing->hdc); + } + + return TRUE; +} + +static BOOL gdi_Glyph_EndDraw(rdpContext* context, INT32 x, INT32 y, INT32 width, INT32 height, + UINT32 bgcolor, UINT32 fgcolor) +{ + rdpGdi* gdi = NULL; + + if (!context || !context->gdi) + return FALSE; + + gdi = context->gdi; + + if (!gdi->drawing || !gdi->drawing->hdc) + return FALSE; + + gdi_SetNullClipRgn(gdi->drawing->hdc); + return TRUE; +} + +/* Graphics Module */ +BOOL gdi_register_graphics(rdpGraphics* graphics) +{ + rdpBitmap bitmap = { 0 }; + rdpGlyph glyph = { 0 }; + 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); + 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); + return TRUE; +} |