First commit - moving from LuaForge to SourceForge

1 files changed, 362 insertions, 0 deletions

diff --git a/include/cd_private.h b/include/cd_private.h
new file mode 100644
index 0000000..9ca38ce
--- /dev/null
+++ b/include/cd_private.h
@@ -0,0 +1,362 @@
+/** \file
+ * \brief Private CD declarations
+ *
+ * See Copyright Notice in cd.h
+ */
+
+#ifndef __CD_PRIVATE_H
+#define __CD_PRIVATE_H
+
+#include <stdarg.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* All context canvas must have at least the base canvas pointer. */
+typedef struct _cdCtxCanvasBase 
+{
+  cdCanvas* canvas;
+} cdCtxCanvasBase;
+
+typedef struct _cdCtxCanvas cdCtxCanvas;
+typedef struct _cdCtxImage cdCtxImage;
+
+typedef struct _cdVectorFont cdVectorFont;
+typedef struct _cdSimulation cdSimulation;
+
+typedef struct _cdPoint 
+{
+  int x, y; 
+} cdPoint; 
+
+typedef struct _cdfPoint 
+{
+  double x, y; 
+} cdfPoint; 
+
+typedef struct _cdRect 
+{
+  int xmin, xmax, ymin, ymax; 
+} cdRect; 
+
+typedef struct _cdfRect 
+{
+  double xmin, xmax, ymin, ymax; 
+} cdfRect; 
+
+typedef struct _cdAttribute
+{
+  const char *name;
+
+  /* can be NULL one of them */
+  void (*set)(cdCtxCanvas* ctxcanvas, char* data);
+  char* (*get)(cdCtxCanvas* ctxcanvas);
+} cdAttribute; 
+
+struct _cdImage
+{
+  int w, h;
+  cdCtxImage* ctximage;
+
+  /* can NOT be NULL */
+  void   (*cxGetImage)(cdCtxCanvas* ctxcanvas, cdCtxImage* ctximage, int x, int y);
+  void   (*cxPutImageRect)(cdCtxCanvas* ctxcanvas, cdCtxImage* ctximage, int x, int y, int xmin, int xmax, int ymin, int ymax);
+  void   (*cxKillImage)(cdCtxImage* ctximage);
+};
+
+struct _cdContext
+{
+  unsigned long caps;  /* canvas capabilities, combination of CD_CAP_*  */
+  int plus; /* indicates if the canvas is context plus */
+
+  /* can NOT be NULL */
+  void  (*cxCreateCanvas)(cdCanvas* canvas, void *data);
+  void  (*cxInitTable)(cdCanvas* canvas);
+
+  /* can be NULL */
+  int   (*cxPlay)(cdCanvas* canvas, int xmin, int xmax, int ymin, int ymax, void *data); 
+  int   (*cxRegisterCallback)(int cb, cdCallback func);
+};
+
+struct _cdCanvas
+{
+  char signature[2];  /* must be "CD" */
+
+  /* can NOT be NULL */
+  void   (*cxPixel)(cdCtxCanvas* ctxcanvas, int x, int y, long color);
+  void   (*cxLine)(cdCtxCanvas* ctxcanvas, int x1, int y1, int x2, int y2);
+  void   (*cxPoly)(cdCtxCanvas* ctxcanvas, int mode, cdPoint* points, int n);
+  void   (*cxRect)(cdCtxCanvas* ctxcanvas, int xmin, int xmax, int ymin, int ymax);
+  void   (*cxBox)(cdCtxCanvas* ctxcanvas, int xmin, int xmax, int ymin, int ymax);
+  void   (*cxArc)(cdCtxCanvas* ctxcanvas, int xc, int yc, int w, int h, double angle1, double angle2);
+  void   (*cxSector)(cdCtxCanvas* ctxcanvas, int xc, int yc, int w, int h, double angle1, double angle2);
+  void   (*cxChord)(cdCtxCanvas* ctxcanvas, int xc, int yc, int w, int h, double angle1, double angle2);
+  void   (*cxText)(cdCtxCanvas* ctxcanvas, int x, int y, const char *s);
+  void   (*cxKillCanvas)(cdCtxCanvas* ctxcanvas);
+  int    (*cxFont)(cdCtxCanvas* ctxcanvas, const char *type_face, int style, int size);
+  void   (*cxPutImageRectMap)(cdCtxCanvas* ctxcanvas, int iw, int ih, const unsigned char *index, const long *colors, int x, int y, int w, int h, int xmin, int xmax, int ymin, int ymax);
+  void   (*cxPutImageRectRGB)(cdCtxCanvas* ctxcanvas, int iw, int ih, const unsigned char *r, const unsigned char *g, const unsigned char *b, int x, int y, int w, int h, int xmin, int xmax, int ymin, int ymax);
+
+  /* default implementation uses the simulation driver */
+  void   (*cxGetFontDim)(cdCtxCanvas* ctxcanvas, int *max_width, int *height, int *ascent, int *descent);
+  void   (*cxGetTextSize)(cdCtxCanvas* ctxcanvas, const char *s, int *width, int *height);
+
+  /* all the following function pointers can be NULL */
+
+  void   (*cxFlush)(cdCtxCanvas* ctxcanvas);
+  void   (*cxClear)(cdCtxCanvas* ctxcanvas);
+
+  void   (*cxFLine)(cdCtxCanvas* ctxcanvas, double x1, double y1, double x2, double y2);
+  void   (*cxFPoly)(cdCtxCanvas* ctxcanvas, int mode, cdfPoint* points, int n);
+  void   (*cxFRect)(cdCtxCanvas* ctxcanvas, double xmin, double xmax, double ymin, double ymax);
+  void   (*cxFBox)(cdCtxCanvas* ctxcanvas, double xmin, double xmax, double ymin, double ymax);
+  void   (*cxFArc)(cdCtxCanvas* ctxcanvas, double xc, double yc, double w, double h, double angle1, double angle2);
+  void   (*cxFSector)(cdCtxCanvas* ctxcanvas, double xc, double yc, double w, double h, double angle1, double angle2);
+  void   (*cxFChord)(cdCtxCanvas* ctxcanvas, double xc, double yc, double w, double h, double angle1, double angle2);
+  void   (*cxFText)(cdCtxCanvas* ctxcanvas, double x, double y, const char *s);
+
+  int    (*cxClip)(cdCtxCanvas* ctxcanvas, int mode);
+  void   (*cxClipArea)(cdCtxCanvas* ctxcanvas, int xmin, int xmax, int ymin, int ymax);
+  void   (*cxFClipArea)(cdCtxCanvas* ctxcanvas, double xmin, double xmax, double ymin, double ymax);
+  int    (*cxBackOpacity)(cdCtxCanvas* ctxcanvas, int opacity);
+  int    (*cxWriteMode)(cdCtxCanvas* ctxcanvas, int mode);
+  int    (*cxLineStyle)(cdCtxCanvas* ctxcanvas, int style);
+  int    (*cxLineWidth)(cdCtxCanvas* ctxcanvas, int width);
+  int    (*cxLineJoin)(cdCtxCanvas* ctxcanvas, int join);
+  int    (*cxLineCap)(cdCtxCanvas* ctxcanvas, int cap);
+  int    (*cxInteriorStyle)(cdCtxCanvas* ctxcanvas, int style);
+  int    (*cxHatch)(cdCtxCanvas* ctxcanvas, int style);
+  void   (*cxStipple)(cdCtxCanvas* ctxcanvas, int w, int h, const unsigned char *stipple);
+  void   (*cxPattern)(cdCtxCanvas* ctxcanvas, int w, int h, const long *pattern);
+  int    (*cxNativeFont)(cdCtxCanvas* ctxcanvas, const char* font);
+  int    (*cxTextAlignment)(cdCtxCanvas* ctxcanvas, int alignment);
+  double (*cxTextOrientation)(cdCtxCanvas* ctxcanvas, double angle);
+  void   (*cxPalette)(cdCtxCanvas* ctxcanvas, int n, const long *palette, int mode);
+  long   (*cxBackground)(cdCtxCanvas* ctxcanvas, long color);
+  long   (*cxForeground)(cdCtxCanvas* ctxcanvas, long color);
+  void   (*cxTransform)(cdCtxCanvas* ctxcanvas, const double* matrix);
+
+  void   (*cxPutImageRectRGBA)(cdCtxCanvas* ctxcanvas, int iw, int ih, const unsigned char *r, const unsigned char *g, const unsigned char *b, const unsigned char *a, int x, int y, int w, int h, int xmin, int xmax, int ymin, int ymax);
+  void   (*cxGetImageRGB)(cdCtxCanvas* ctxcanvas, unsigned char *r, unsigned char *g, unsigned char *b, int x, int y, int w, int h);
+  void   (*cxScrollArea)(cdCtxCanvas* ctxcanvas, int xmin, int xmax, int ymin, int ymax, int dx, int dy);
+
+  cdCtxImage* (*cxCreateImage)(cdCtxCanvas* ctxcanvas, int w, int h);
+  void   (*cxKillImage)(cdCtxImage* ctximage);
+  void   (*cxGetImage)(cdCtxCanvas* ctxcanvas, cdCtxImage* ctximage, int x, int y);
+  void   (*cxPutImageRect)(cdCtxCanvas* ctxcanvas, cdCtxImage* ctximage, int x, int y, int xmin, int xmax, int ymin, int ymax);
+
+  void   (*cxNewRegion)(cdCtxCanvas* ctxcanvas);
+  int    (*cxIsPointInRegion)(cdCtxCanvas* ctxcanvas, int x, int y);
+  void   (*cxOffsetRegion)(cdCtxCanvas* ctxcanvas, int x, int y);
+  void   (*cxGetRegionBox)(cdCtxCanvas* ctxcanvas, int *xmin, int *xmax, int *ymin, int *ymax);
+
+  int    (*cxActivate)(cdCtxCanvas* ctxcanvas);
+  void   (*cxDeactivate)(cdCtxCanvas* ctxcanvas);
+
+  /* the driver must update these, when the canvas is created and
+     whenever the canvas change its size or bpp. */
+  int w,h;            /* size in pixels */              /****  pixel =   mm   * res  ****/
+  double w_mm, h_mm;  /* size in mm */                  /****   mm   =  pixel / res  ****/
+  double xres, yres;  /* resolution in pixels/mm */     /****   res  =  pixel / mm   ****/
+  int bpp;            /* number of bits per pixel */
+  int invert_yaxis;   /* the driver has the y axis from top to bottom */
+  double matrix[6];
+  int use_matrix;
+
+  /* clipping attributes */
+  int clip_mode;
+  cdRect clip_rect;
+  cdfRect clip_frect;
+  int clip_poly_n;
+  cdPoint* clip_poly;    /* only defined if integer poligon created, if exist clip_fpoly is NULL, and ->Poly exists */
+  cdfPoint* clip_fpoly;  /* only defined if real poligon created, if exist clip_poly is NULL, and ->fPoly exists  */
+
+  /* clipping region attributes */
+  int new_region;
+  int combine_mode;
+  
+  /* color attributes */
+  long foreground, background;
+  int back_opacity, write_mode;
+
+  /* primitive attributes */
+  int mark_type, mark_size;
+
+  int line_style, line_width;
+  int line_cap, line_join;
+  int* line_dashes;
+  int line_dashes_count;
+
+  int interior_style, hatch_style;
+  int fill_mode;
+
+  char font_type_face[1024];
+  int font_style, font_size;
+  int text_alignment;
+  double text_orientation;
+  char native_font[1024];
+
+  int pattern_w, pattern_h, pattern_size;
+  long* pattern;
+  int stipple_w, stipple_h, stipple_size;
+  unsigned char* stipple;
+
+  /* origin */
+  int use_origin;
+  cdPoint origin;            /* both points contains the same coordinate always */
+  cdfPoint forigin;
+
+  /* last polygon */
+  int poly_mode, 
+      poly_n,                /* current number of vertices */
+      poly_size, fpoly_size; /* allocated number of vertices, only increases */
+  cdPoint* poly;             /* used during an integer poligon creation, only if ->Poly exists */
+  cdfPoint* fpoly;           /* used during an real poligon creation, only if ->fPoly exists */
+  int use_fpoly;
+
+  /* simulation flags */
+  int sim_mode;
+  int sim_poly;
+
+  /* WC */
+  double s, sx, tx, sy, ty;   /* Transformacao Window -> Viewport (scale+translation)*/
+  cdfRect window;             /* Window in WC */
+  cdRect viewport;            /* Viewport in pixels */
+
+  cdAttribute* attrib_list[50];
+  int attrib_n;
+
+  cdVectorFont* vector_font;
+  cdSimulation* simulation;
+  cdCtxCanvas* ctxcanvas;
+  cdContext* context;
+};
+
+
+/***************/
+/* attributes  */
+/***************/
+void cdRegisterAttribute(cdCanvas* canvas, cdAttribute* attrib);
+
+/***************/
+/* vector font */
+/***************/
+cdVectorFont* cdCreateVectorFont(cdCanvas* canvas);
+void cdKillVectorFont(cdVectorFont* vector_font_data);
+
+/**********/
+/*   WC   */
+/**********/
+void wdSetDefaults(cdCanvas* canvas);
+
+/********************/
+/*   Context Plus   */
+/********************/
+void cdInitContextPlusList(cdContext* ctx_list[]);
+cdContext* cdGetContextPlus(int ctx);
+enum{CD_CTX_NATIVEWINDOW, CD_CTX_IMAGE, CD_CTX_DBUFFER, CD_CTX_PRINTER, CD_CTX_EMF, CD_CTX_CLIPBOARD}; 
+#define NUM_CONTEXTPLUS 6
+
+/*************/
+/* utilities */
+/*************/
+int cdRound(double x);
+void cdCanvasGetEllipseBox(int xc, int yc, int w, int h, double a1, double a2, int *xmin, int *xmax, int *ymin, int *ymax);
+int cdCheckBoxSize(int *xmin, int *xmax, int *ymin, int *ymax);
+int cdfCheckBoxSize(double *xmin, double *xmax, double *ymin, double *ymax);
+void cdNormalizeLimits(int w, int h, int *xmin, int *xmax, int *ymin, int *ymax);
+int cdGetFileName(const char* strdata, char* filename);
+int cdStrEqualNoCase(const char* str1, const char* str2);
+
+#define _cdCheckCanvas(_canvas) (_canvas!=NULL && ((unsigned char*)_canvas)[0] == 'C' && ((unsigned char*)_canvas)[1] == 'D')
+#define _cdInvertYAxis(_canvas, _y) (_canvas->h - (_y) - 1)
+#define _cdSwapInt(_a,_b) {int _c=_a;_a=_b;_b=_c;}
+#define _cdSwapDouble(_a,_b) {double _c=_a;_a=_b;_b=_c;}
+#define _cdRound(_x) ((int)(_x < 0? (_x-0.5): (_x+0.5)))
+#define _cdRotateHatch(_x)  ((_x) = ((_x)<< 1) | ((_x)>>7))
+
+/******************/
+/* Transformation */
+/******************/
+void cdMatrixTransformPoint(double* matrix, int x, int y, int *rx, int *ry);
+void cdfMatrixTransformPoint(double* matrix, double x, double y, double *rx, double *ry);
+void cdMatrixMultiply(const double* matrix, double* mul_matrix);
+void cdMatrixInverse(const double* matrix, double* inv_matrix);
+void cdRotatePoint(cdCanvas* canvas, int x, int y, int cx, int cy, int *rx, int *ry, double sin_teta, double cos_teta);
+void cdRotatePointY(cdCanvas* canvas, int x, int y, int cx, int cy, int *ry, double sin_theta, double cos_theta);
+void cdTextTranslatePoint(cdCanvas* canvas, int x, int y, int w, int h, int baseline, int *rx, int *ry);
+
+/*************/
+/*   Fonts   */
+/*************/
+int cdParsePangoFont(const char *nativefont, char *type_face, int *style, int *size);
+int cdParseIupWinFont(const char *nativefont, char *type_face, int *style, int *size);
+int cdParseXWinFont(const char *nativefont, char *type_face, int *style, int *size);
+int cdGetFontSizePixels(cdCanvas* canvas, int size);
+int cdGetFontSizePoints(cdCanvas* canvas, int size);
+
+/****************/
+/*  For Images  */
+/****************/
+unsigned char cdZeroOrderInterpolation(int width, int height, const unsigned char *map, float xl, float yl);
+unsigned char cdBilinearInterpolation(int width, int height, const unsigned char *map, float xl, float yl);
+void cdImageRGBInitInverseTransform(int w, int h, int xmin, int xmax, int ymin, int ymax, float *xfactor, float *yfactor, const double* matrix, double* inv_matrix);
+void cdImageRGBInverseTransform(int t_x, int t_y, float *i_x, float *i_y, float xfactor, float yfactor, int xmin, int ymin, int x, int y, double *inv_matrix);
+void cdImageRGBCalcDstLimits(cdCanvas* canvas, int x, int y, int w, int h, int *xmin, int *xmax, int *ymin, int *ymax, int* rect);
+void cdRGB2Gray(int width, int height, const unsigned char* red, const unsigned char* green, const unsigned char* blue, unsigned char* index, long *color);
+
+#define CD_ALPHA_BLEND(_src,_dst,_alpha) (unsigned char)(((_src) * (_alpha) + (_dst) * (255 - (_alpha))) / 255)
+
+int* cdGetZoomTable(int w, int rw, int xmin);
+int cdCalcZoom(int canvas_size, int cnv_rect_pos, int cnv_rect_size, 
+               int *new_cnv_rect_pos, int *new_cnv_rect_size, 
+               int img_rect_pos, int img_rect_size, 
+               int *new_img_rect_pos, int *new_img_rect_size, int is_horizontal);
+
+/**************/
+/* simulation */
+/**************/
+cdSimulation* cdCreateSimulation(cdCanvas* canvas);
+void cdKillSimulation(cdSimulation* simulation);
+void cdSimInitText(cdSimulation* simulation);
+
+/* Replacements for cdCanvas function pointers */
+void cdrectSIM(cdCtxCanvas* ctxcanvas, int xmin, int xmax, int ymin, int ymax);
+void cdboxSIM(cdCtxCanvas* ctxcanvas, int xmin, int xmax, int ymin, int ymax);
+void cdlineSIM(cdCtxCanvas* ctxcanvas, int x1, int y1, int x2, int y2);
+void cdarcSIM(cdCtxCanvas* ctxcanvas, int xc, int yc, int width, int height, double angle1, double angle2);
+void cdsectorSIM(cdCtxCanvas* ctxcanvas, int xc, int yc, int width, int height, double angle1, double angle2);
+void cdchordSIM(cdCtxCanvas* ctxcanvas, int xc, int yc, int width, int height, double angle1, double angle2);
+void cdpolySIM(cdCtxCanvas* ctxcanvas, int mode, cdPoint* points, int n);
+
+/* Replacements for Text and Font using FreeType library */
+void cdtextSIM(cdCtxCanvas* ctxcanvas, int x, int y, const char *s);
+int cdfontSIM(cdCtxCanvas* ctxcanvas, const char *type_face, int style, int size);
+void cdgetfontdimSIM(cdCtxCanvas* ctxcanvas, int *max_width, int *height, int *ascent, int *descent);
+void cdgettextsizeSIM(cdCtxCanvas* ctxcanvas, const char *s, int *width, int *height);
+
+/* Simulation functions that are independent of the simulation base driver */
+void cdSimMark(cdCanvas* canvas, int x, int y);
+void cdSimPolyBezier(cdCanvas* canvas, const cdPoint* points, int n);
+void cdSimPutImageRectRGBA(cdCanvas* canvas, int iw, int ih, const unsigned char *r, const unsigned char *g, const unsigned char *b, const unsigned char *a, int x, int y, int w, int h, int xmin, int xmax, int ymin, int ymax);
+
+/* Simulation functions that are independent of the simulation base driver,
+   and does not checks for axis and matrix. 
+   All use the polygon method ->cxFPoly only. */
+void cdfSimPolyBezier(cdCanvas* canvas, const cdfPoint* points, int n);
+void cdfSimRect(cdCtxCanvas *ctxcanvas, double xmin, double xmax, double ymin, double ymax);
+void cdfSimBox(cdCtxCanvas *ctxcanvas, double xmin, double xmax, double ymin, double ymax);
+void cdfSimElipse(cdCtxCanvas* ctxcanvas, double xc, double yc, double width, double height, double angle1, double angle2, int sector);
+void cdfSimArc(cdCtxCanvas *ctxcanvas, double xc, double yc, double width, double height, double angle1, double angle2);
+
+/* Replacements for Font using estimation */
+void cdgetfontdimEX(cdCtxCanvas* ctxcanvas, int *max_width, int *height, int *ascent, int *descent);
+void cdgettextsizeEX(cdCtxCanvas* ctxcanvas, const char *s, int *width, int *height);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif