+#ifndef R_TEXTURES_H
+#define R_TEXTURES_H
+
// transparent
#define TEXF_ALPHA 0x00000001
// mipmapped
#define TEXF_PRECACHE 0x00000004
// upload immediately, never defer (ignore r_textureprecache)
#define TEXF_ALWAYSPRECACHE 0x00000008
-// allocated as a fragment in a larger texture, mipmap is not allowed with
-// this, mostly used for lightmaps (which are procedural textures)
-#define TEXF_FRAGMENT 0x00000010
+// indicates texture coordinates should be clamped rather than wrapping
+#define TEXF_CLAMP 0x00000020
+// indicates texture should be uploaded using GL_NEAREST or GL_NEAREST_MIPMAP_NEAREST mode
+#define TEXF_FORCENEAREST 0x00000040
+// indicates texture should be uploaded using GL_LINEAR or GL_LINEAR_MIPMAP_NEAREST or GL_LINEAR_MIPMAP_LINEAR mode
+#define TEXF_FORCELINEAR 0x00000080
+// indicates texture should be affected by gl_picmip and gl_max_size cvar
+#define TEXF_PICMIP 0x00000100
// used for checking if textures mismatch
-#define TEXF_IMPORTANTBITS (TEXF_ALPHA | TEXF_MIPMAP | TEXF_FRAGMENT)
+#define TEXF_IMPORTANTBITS (TEXF_ALPHA | TEXF_MIPMAP | TEXF_CLAMP | TEXF_FORCENEAREST | TEXF_FORCELINEAR | TEXF_PICMIP)
-// 8bit quake paletted
-#define TEXTYPE_QPALETTE 1
+// 8bit paletted
+#define TEXTYPE_PALETTE 1
// 24bit RGB
#define TEXTYPE_RGB 2
// 32bit RGBA
#define TEXTYPE_RGBA 3
-// contents of this structure are private to gl_textures.c
-typedef struct
+// contents of this structure are mostly private to gl_textures.c
+typedef struct rtexture_s
{
- int useless;
+ // this is exposed (rather than private) for speed reasons only
+ int texnum;
}
rtexture_t;
// contents of this structure are private to gl_textures.c
-typedef struct
+typedef struct rtexturepool_s
{
int useless;
}
rtexturepool_t;
-// allocate a texture pool, to be used with R_LoadTexture/R_ProceduralTexture
+// allocate a texture pool, to be used with R_LoadTexture
rtexturepool_t *R_AllocTexturePool(void);
// free a texture pool (textures can not be freed individually)
void R_FreeTexturePool(rtexturepool_t **rtexturepool);
-// important technical note:
-// fragment textures must have a width that is compatible with the fragment
-// update system, to get a compliant size, use R_CompatibleFragmentWidth
-int R_CompatibleFragmentWidth(int width, int textype, int flags);
-
-// these two functions add a texture to a pool, and may precache (upload) it
-// a normal static texture
-rtexture_t *R_LoadTexture (rtexturepool_t *rtexturepool, char *identifier, int width, int height, qbyte *data, int textype, int flags);
-// a procedurally generated texture, often animated over time, note: generate can be NULL (for odd uses)
-rtexture_t *R_ProceduralTexture (rtexturepool_t *rtexturepool, char *identifier, int width, int height, int textype, int flags, int (*generate)(qbyte *buffer, int width, int height, void *parameterdata, int parameterdatasize), void *parameterdata, int parameterdatasize);
+// add a texture to a pool and optionally precache (upload) it
+// (note: data == NULL is perfectly acceptable)
+// (note: palette must not be NULL if using TEXTYPE_PALETTE)
+rtexture_t *R_LoadTexture1D(rtexturepool_t *rtexturepool, const char *identifier, int width, const unsigned char *data, int textype, int flags, const unsigned int *palette);
+rtexture_t *R_LoadTexture2D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, const unsigned char *data, int textype, int flags, const unsigned int *palette);
+rtexture_t *R_LoadTexture3D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int depth, const unsigned char *data, int textype, int flags, const unsigned int *palette);
+rtexture_t *R_LoadTextureCubeMap(rtexturepool_t *rtexturepool, const char *identifier, int width, const unsigned char *data, int textype, int flags, const unsigned int *palette);
-// update the image data of a texture, used by lightmap updates and procedural
-// textures.
-void R_UpdateTexture(rtexture_t *rt, qbyte *data);
+// free a texture
+void R_FreeTexture(rtexture_t *rt);
-// location of the fragment in the texture (note: any parameter except rt can be NULL)
-void R_FragmentLocation(rtexture_t *rt, int *x, int *y, float *fx1, float *fy1, float *fx2, float *fy2);
+// update a portion of the image data of a texture, used by lightmap updates
+// and procedural textures such as video playback.
+void R_UpdateTexture(rtexture_t *rt, unsigned char *data, int x, int y, int width, int height);
-// returns the renderer dependent texture slot number (call this before each use, as a texture might not have been precached, or it might change over time if it is procedural)
-int R_GetTexture (rtexture_t *rt);
+// returns the renderer dependent texture slot number (call this before each
+// use, as a texture might not have been precached)
+#define R_GetTexture(rt) ((rt) ? ((rt)->texnum >= 0 ? (rt)->texnum : R_RealGetTexture(rt)) : r_texture_white->texnum)
+int R_RealGetTexture (rtexture_t *rt);
// returns true if the texture is transparent (useful for rendering code)
int R_TextureHasAlpha(rtexture_t *rt);
// returns height of texture, as was specified when it was uploaded
int R_TextureHeight(rtexture_t *rt);
+
+// frees processing buffers each frame, and may someday animate procedural textures
+void R_Textures_Frame(void);
+
+#endif
+
projects / xonotic / darkplaces.git / blobdiff