added gl_nopartialtextureupdates cvar which disables use of

[xonotic/darkplaces.git] / r_textures.h

diff --git a/r_textures.h b/r_textures.h
index 516394ae8e379a80fa8607bc2512b55c4d36df7f..edd7d9e58a5d5db72434ecc62e832e5daba965a8 100644 (file)
--- a/r_textures.h
+++ b/r_textures.h
@@ -26,6 +26,10 @@
 #define TEXF_COMPARE 0x00000800
 // indicates texture should use lower precision where supported
 #define TEXF_LOWPRECISION 0x00001000
+// indicates texture should support R_UpdateTexture
+#define TEXF_ALLOWUPDATES 0x00002000
+// indicates texture should support R_FlushTexture (improving speed on multiple partial updates per draw)
+#define TEXF_MANUALFLUSHUPDATES 0x00004000
 // used for checking if textures mismatch
 #define TEXF_IMPORTANTBITS (TEXF_ALPHA | TEXF_MIPMAP | TEXF_CLAMP | TEXF_FORCENEAREST | TEXF_FORCELINEAR | TEXF_PICMIP | TEXF_COMPRESS | TEXF_COMPARE | TEXF_LOWPRECISION)
 
@@ -92,7 +96,11 @@ void R_FreeTexture(rtexture_t *rt);
 
 // update a portion of the image data of a texture, used by lightmap updates
 // and procedural textures such as video playback.
+// if TEXF_MANUALFLUSHUPDATES is used, you MUST call R_FlushTexture to apply the updates
 void R_UpdateTexture(rtexture_t *rt, const unsigned char *data, int x, int y, int width, int height);
+// if TEXF_MANUALFLUSHUPDATES is used, call this to apply the updates,
+// otherwise this function does nothing
+void R_FlushTexture(rtexture_t *rt);
 
 // returns the renderer dependent texture slot number (call this before each
 // use, as a texture might not have been precached)