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55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
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/* internal header to 2dlib
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*/
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#ifndef LIB2D_H
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#define LIB2D_H
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#include "gr.h"
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#include "renderer.h"
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// structures
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typedef struct mem_bitmap {
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char *data;
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short bpp;
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int rowsize;
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ushort alloced:2;
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ushort flag:14;
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} mem_bitmap;
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#define MEMFLAG_TRANSBLT 1
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// ---------------------------------------------------------------------------
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// Line Drawing Functions
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void gr_Line(gr_pen *pen, int x1, int y1, int x2, int y2);
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void gr_HLine(gr_pen *pen, int x1, int x2, int y);
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void gr_VLine(gr_pen *pen, int y1, int y2, int x);
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void gr_Rect(gr_pen *pen, int l, int t, int r, int b);
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void gr_FillRect(gr_pen *pen, int l, int t, int r, int b);
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// ---------------------------------------------------------------------------
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// Memory surface functions
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bool gr_mem_surf_Create(ddgr_surface *sf);
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bool gr_mem_surf_Destroy(ddgr_surface *sf);
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// generic clearing functions
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void gr_mem_surf_Clear(ddgr_surface *dsf, ddgr_color col, int l, int t, int w, int h);
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// non-scaling bitmap blt functions
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bool gr_mem_surf_Blt(ddgr_surface *dsf, int dx, int dy,
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ddgr_surface *ssf, int sx, int sy, int sw, int sh);
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// retrieves a pointer to surface memory. allowed to lock one surface multiple times.
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bool gr_mem_surf_Lock(ddgr_surface *sf, void **ptr, int *rowsize);
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bool gr_mem_surf_Unlock(ddgr_surface *sf, void *ptr);
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// initializes a surface based of preinitialized objects by the user.
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bool gr_mem_surf_Init(ddgr_surface *sf, char *data, int rowsize);
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#endif
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