]> git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - gl_textures.c
movement packet loss tracking
[xonotic/darkplaces.git] / gl_textures.c
index 083f4f3c4be86bfb30a75014239daf7eacbb3e82..1b3858fd6fb4d1e4a8175b43633605d7ee8895c8 100644 (file)
@@ -20,6 +20,7 @@ cvar_t gl_texturecompression_q3bsplightmaps = {CVAR_SAVE, "gl_texturecompression
 cvar_t gl_texturecompression_q3bspdeluxemaps = {CVAR_SAVE, "gl_texturecompression_q3bspdeluxemaps", "0", "whether to compress deluxemaps in q3bsp format levels (only levels compiled with q3map2 -deluxe have these)"};
 cvar_t gl_texturecompression_sky = {CVAR_SAVE, "gl_texturecompression_sky", "0", "whether to compress sky textures"};
 cvar_t gl_texturecompression_lightcubemaps = {CVAR_SAVE, "gl_texturecompression_lightcubemaps", "1", "whether to compress light cubemaps (spotlights and other light projection images)"};
+cvar_t gl_nopartialtextureupdates = {CVAR_SAVE, "gl_nopartialtextureupdates", "0", "use alternate path for dynamic lightmap updates"};
 
 int            gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
 int            gl_filter_mag = GL_LINEAR;
@@ -100,6 +101,10 @@ typedef struct gltexture_s
        void *updatacallback_data;
        // --- [11/22/2007 Black]
 
+       // stores backup copy of texture for deferred texture updates (r_nopartialtextureupdates cvar)
+       unsigned char *bufferpixels;
+       qboolean buffermodified;
+
        // pointer to texturepool (check this to see if the texture is allocated)
        struct gltexturepool_s *pool;
        // pointer to next texture in texturepool chain
@@ -386,6 +391,7 @@ static void GL_TextureMode_f (void)
        // change all the existing mipmap texture objects
        // FIXME: force renderer(/client/something?) restart instead?
        CHECKGLERROR
+       GL_ActiveTexture(0);
        for (pool = gltexturepoolchain;pool;pool = pool->next)
        {
                for (glt = pool->gltchain;glt;glt = glt->chain)
@@ -393,7 +399,7 @@ static void GL_TextureMode_f (void)
                        // only update already uploaded images
                        if (!(glt->flags & (GLTEXF_UPLOAD | TEXF_FORCENEAREST | TEXF_FORCELINEAR)))
                        {
-                               qglGetIntegerv(gltexturetypebindingenums[glt->texturetype], &oldbindtexnum);CHECKGLERROR
+                               oldbindtexnum = R_Mesh_TexBound(0, gltexturetypebindingenums[glt->texturetype]);
                                qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
                                if (glt->flags & TEXF_MIPMAP)
                                {
@@ -606,6 +612,7 @@ void R_Textures_Init (void)
        Cvar_RegisterVariable (&gl_texturecompression_q3bspdeluxemaps);
        Cvar_RegisterVariable (&gl_texturecompression_sky);
        Cvar_RegisterVariable (&gl_texturecompression_lightcubemaps);
+       Cvar_RegisterVariable (&gl_nopartialtextureupdates);
 
        R_RegisterModule("R_Textures", r_textures_start, r_textures_shutdown, r_textures_newmap);
 }
@@ -641,6 +648,7 @@ void R_Textures_Frame (void)
                Cvar_SetValueQuick(&gl_texture_anisotropy, old_aniso);
 
                CHECKGLERROR
+               GL_ActiveTexture(0);
                for (pool = gltexturepoolchain;pool;pool = pool->next)
                {
                        for (glt = pool->gltchain;glt;glt = glt->chain)
@@ -648,7 +656,7 @@ void R_Textures_Frame (void)
                                // only update already uploaded images
                                if ((glt->flags & (GLTEXF_UPLOAD | TEXF_MIPMAP)) == TEXF_MIPMAP)
                                {
-                                       qglGetIntegerv(gltexturetypebindingenums[glt->texturetype], &oldbindtexnum);CHECKGLERROR
+                                       oldbindtexnum = R_Mesh_TexBound(0, gltexturetypebindingenums[glt->texturetype]);
 
                                        qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
                                        qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MAX_ANISOTROPY_EXT, old_aniso);CHECKGLERROR
@@ -772,7 +780,8 @@ static void R_Upload(gltexture_t *glt, const unsigned char *data, int fragx, int
        CHECKGLERROR
 
        // we need to restore the texture binding after finishing the upload
-       qglGetIntegerv(gltexturetypebindingenums[glt->texturetype], &oldbindtexnum);CHECKGLERROR
+       GL_ActiveTexture(0);
+       oldbindtexnum = R_Mesh_TexBound(0, gltexturetypebindingenums[glt->texturetype]);
        qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
 
        // these are rounded up versions of the size to do better resampling
@@ -804,7 +813,7 @@ static void R_Upload(gltexture_t *glt, const unsigned char *data, int fragx, int
                prevbuffer = colorconvertbuffer;
        }
 
-       if ((glt->flags & (TEXF_MIPMAP | TEXF_PICMIP | GLTEXF_UPLOAD)) == 0 && glt->inputwidth == glt->tilewidth && glt->inputheight == glt->tileheight && glt->inputdepth == glt->tiledepth)
+       if ((glt->flags & (TEXF_MIPMAP | TEXF_PICMIP | GLTEXF_UPLOAD)) == 0 && glt->inputwidth == glt->tilewidth && glt->inputheight == glt->tileheight && glt->inputdepth == glt->tiledepth && (fragx != 0 || fragy != 0 || fragwidth != glt->tilewidth || fragheight != glt->tileheight))
        {
                // update a portion of the image
                switch(glt->texturetype)
@@ -844,7 +853,7 @@ static void R_Upload(gltexture_t *glt, const unsigned char *data, int fragx, int
                        }
                }
                mip = 0;
-               if (vid.support.arb_texture_compression)
+               if (qglGetCompressedTexImageARB)
                {
                        if (gl_texturecompression.integer >= 2)
                                qglHint(GL_TEXTURE_COMPRESSION_HINT_ARB, GL_NICEST);
@@ -1070,6 +1079,8 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *iden
                CHECKGLERROR
                qglGenTextures(1, (GLuint *)&glt->texnum);CHECKGLERROR
                R_Upload(glt, data, 0, 0, 0, glt->inputwidth, glt->inputheight, glt->inputdepth);
+               if ((glt->flags & TEXF_ALLOWUPDATES) && gl_nopartialtextureupdates.integer)
+                       glt->bufferpixels = Mem_Alloc(texturemempool, glt->tilewidth*glt->tileheight*glt->tiledepth*glt->sides*glt->bytesperpixel);
        }
        else if (data)
        {
@@ -1165,7 +1176,56 @@ void R_UpdateTexture(rtexture_t *rt, const unsigned char *data, int x, int y, in
        if (!glt->texnum)
                Host_Error("R_UpdateTexture: texture has not been uploaded yet");
        // update part of the texture
-       R_Upload(glt, data, x, y, 0, width, height, 1);
+       if (glt->bufferpixels)
+       {
+               int j;
+               int bpp = glt->bytesperpixel;
+               int inputskip = width*bpp;
+               int outputskip = glt->tilewidth*bpp;
+               const unsigned char *input = data;
+               unsigned char *output = glt->bufferpixels;
+               if (x < 0)
+               {
+                       width += x;
+                       input -= x*bpp;
+                       x = 0;
+               }
+               if (y < 0)
+               {
+                       height += y;
+                       input -= y*inputskip;
+                       y = 0;
+               }
+               if (width > glt->tilewidth - x)
+                       width = glt->tilewidth - x;
+               if (height > glt->tileheight - y)
+                       height = glt->tileheight - y;
+               if (width < 1 || height < 1)
+                       return;
+               glt->buffermodified = true;
+               output += y*outputskip + x*bpp;
+               for (j = 0;j < height;j++, output += outputskip, input += inputskip)
+                       memcpy(output, input, width*bpp);
+               if (!(glt->flags & TEXF_MANUALFLUSHUPDATES))
+                       R_FlushTexture(rt);
+       }
+       else
+               R_Upload(glt, data, x, y, 0, width, height, 1);
+}
+
+void R_FlushTexture(rtexture_t *rt)
+{
+       gltexture_t *glt;
+       if (rt == NULL)
+               Host_Error("R_FlushTexture: no texture supplied");
+
+       // update part of the texture
+       glt = (gltexture_t *)rt;
+
+       if (!glt->buffermodified || !glt->bufferpixels)
+               return;
+       glt->buffermodified = false;
+       R_Upload(glt, glt->bufferpixels, 0, 0, 0, glt->tilewidth, glt->tileheight, glt->tiledepth);
 }
 
 void R_ClearTexture (rtexture_t *rt)