6d3dce4e16
Define separate enum values for rotation data in both the high bits, where it is usually kept, and the low bits, where it is sometimes used for math or comparisons. Define an enum value to represent the composite of the index and the rotation, since the composite is not suitable for use as an array subscript. Add helper functions to extract the component pieces.
131 lines
4.1 KiB
C++
131 lines
4.1 KiB
C++
/*
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* This file is part of the DXX-Rebirth project <https://www.dxx-rebirth.com/>.
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* It is copyright by its individual contributors, as recorded in the
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* project's Git history. See COPYING.txt at the top level for license
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* terms and a link to the Git history.
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*/
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/* interface to OpenGL functions
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* Added 9/15/99 Matthew Mueller
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* Got rid of OpenGL-internal stuff 2004-5-16 Martin Schaffner
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*/
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#ifndef _OGL_INIT_H_
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#define _OGL_INIT_H_
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#include "dxxsconf.h"
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#ifdef _MSC_VER
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#include <windows.h>
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#include <stddef.h>
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#endif
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#include "d_gl.h"
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#include "dsx-ns.h"
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#include "fwd-gr.h"
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#include "fwd-segment.h"
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#include "palette.h"
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#include "pstypes.h"
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#include "3d.h"
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#include "ogl_extensions.h"
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#include <array>
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#define OGL_TEXFILT_CLASSIC 0
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#define OGL_TEXFILT_UPSCALE 1
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#define OGL_TEXFILT_TRLINEAR 2
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#ifdef __cplusplus
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/* we need to export ogl_texture for 2d/font.c */
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struct ogl_texture
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{
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GLuint handle;
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GLint internalformat;
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GLenum format;
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int w,h,tw,th,lw;
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int bytesu;
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int bytes;
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GLfloat u,v;
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GLfloat prio;
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int wrapstate;
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unsigned long numrend;
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};
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extern ogl_texture* ogl_get_free_texture();
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void ogl_init_texture(ogl_texture &t, int w, int h, int flags);
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void ogl_init_shared_palette(void);
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namespace dcx {
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#define OGL_FLAG_MIPMAP (1 << 0)
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#define OGL_FLAG_NOCOLOR (1 << 1)
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#define OGL_FLAG_ALPHA (1 << 31) // not required for ogl_loadbmtexture, since it uses the BM_FLAG_TRANSPARENT, but is needed for ogl_init_texture.
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void ogl_loadbmtexture_f(grs_bitmap &bm, int texfilt, bool texanis, bool edgepad);
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void ogl_freebmtexture(grs_bitmap &bm);
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void ogl_start_frame(grs_canvas &);
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void ogl_end_frame(void);
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void ogl_set_screen_mode(void);
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struct ogl_colors
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{
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using array_type = std::array<GLfloat, 16>;
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static const array_type white;
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const array_type &init(int c)
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{
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return
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#ifdef DXX_CONSTANT_TRUE
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DXX_CONSTANT_TRUE(c == -1)
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? white
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: DXX_CONSTANT_TRUE(c != -1)
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? init_palette(c)
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:
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#endif
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init_maybe_white(c);
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}
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const array_type &init_maybe_white(int c);
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const array_type &init_palette(unsigned c);
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private:
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array_type a;
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};
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void ogl_urect(grs_canvas &, int left, int top, int right, int bot, color_palette_index color);
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bool ogl_ubitmapm_cs(grs_canvas &, int x, int y,int dw, int dh, grs_bitmap &bm,int c, int scale);
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bool ogl_ubitmapm_cs(grs_canvas &, int x, int y,int dw, int dh, grs_bitmap &bm, const ogl_colors::array_type &c, int scale);
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bool ogl_ubitblt_i(unsigned dw, unsigned dh, unsigned dx, unsigned dy, unsigned sw, unsigned sh, unsigned sx, unsigned sy, const grs_bitmap &src, grs_bitmap &dest, unsigned texfilt);
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bool ogl_ubitblt(unsigned w, unsigned h, unsigned dx, unsigned dy, unsigned sx, unsigned sy, const grs_bitmap &src, grs_bitmap &dest);
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void ogl_upixelc(const grs_bitmap &, unsigned x, unsigned y, color_palette_index c);
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color_palette_index ogl_ugpixel(const grs_bitmap &bitmap, unsigned x, unsigned y);
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void ogl_ulinec(grs_canvas &, int left, int top, int right, int bot, int c);
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}
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#ifdef dsx
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namespace dsx {
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void ogl_cache_level_textures();
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}
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#endif
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void _g3_draw_tmap_2(grs_canvas &, unsigned nv, const g3s_point *const *const pointlist, const g3s_uvl *uvl_list, const g3s_lrgb *light_rgb, grs_bitmap &bmbot, grs_bitmap &bm, texture2_rotation_low orient);
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template <std::size_t N>
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static inline void g3_draw_tmap_2(grs_canvas &canvas, const unsigned nv, const std::array<cg3s_point *, N> &pointlist, const std::array<g3s_uvl, N> &uvl_list, const std::array<g3s_lrgb, N> &light_rgb, grs_bitmap &bmbot, grs_bitmap &bm, const texture2_rotation_low orient)
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{
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static_assert(N <= MAX_POINTS_PER_POLY, "too many points in tmap");
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#ifdef DXX_CONSTANT_TRUE
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if (DXX_CONSTANT_TRUE(nv > N))
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DXX_ALWAYS_ERROR_FUNCTION(dxx_trap_tmap_overread, "reading beyond array");
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#endif
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if (nv > N)
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return;
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_g3_draw_tmap_2(canvas, nv, &pointlist[0], &uvl_list[0], &light_rgb[0], bmbot, bm, orient);
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}
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void ogl_draw_vertex_reticle(int cross,int primary,int secondary,int color,int alpha,int size_offs);
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namespace dcx {
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void ogl_toggle_depth_test(int enable);
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void ogl_set_blending(gr_blend);
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unsigned pow2ize(unsigned x);//from ogl.c
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}
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#endif
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#endif /* _OGL_INIT_H_ */
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