Added support for JPEG screenshots. You can toggle that with the cvar "scr_screenshot...

[xonotic/darkplaces.git] / gl_textures.c

diff --git a/gl_textures.c b/gl_textures.c
index 558b1f59cb457bfab6721dec5a539c06e0e5c99e..6bcd55a8a4b51b3665d088b106c5ef16588c0e26 100644 (file)
--- a/gl_textures.c
+++ b/gl_textures.c
@@ -1,6 +1,7 @@
 
 #include "quakedef.h"
 #include "image.h"
+#include "jpeg.h"
 
 cvar_t r_max_size = {CVAR_SAVE, "r_max_size", "2048"};
 cvar_t r_max_scrapsize = {CVAR_SAVE, "r_max_scrapsize", "256"};
@@ -120,7 +121,7 @@ gltexture_t;
 
 typedef struct gltexturepool_s
 {
-       int sentinel;
+       unsigned int sentinel;
        struct gltextureimage_s *imagechain;
        struct gltexture_s *gltchain;
        struct gltexturepool_s *next;
@@ -222,20 +223,23 @@ void R_FreeTexture(rtexture_t *rt)
        // note: if freeing a fragment texture, this will not make the claimed
        // space available for new textures unless all other fragments in the
        // image are also freed
-       image = glt->image;
-       image->texturecount--;
-       if (image->texturecount < 1)
+       if (glt->image)
        {
-               for (gltimagepointer = &glt->pool->imagechain;*gltimagepointer && *gltimagepointer != image;gltimagepointer = &(*gltimagepointer)->imagechain);
-               if (*gltimagepointer == image)
-                       *gltimagepointer = image->imagechain;
-               else
-                       Host_Error("R_FreeTexture: image not linked in pool\n");
-               if (image->texnum)
-                       qglDeleteTextures(1, &image->texnum);
-               if (image->blockallocation)
-                       Mem_Free(image->blockallocation);
-               Mem_Free(image);
+               image = glt->image;
+               image->texturecount--;
+               if (image->texturecount < 1)
+               {
+                       for (gltimagepointer = &glt->pool->imagechain;*gltimagepointer && *gltimagepointer != image;gltimagepointer = &(*gltimagepointer)->imagechain);
+                       if (*gltimagepointer == image)
+                               *gltimagepointer = image->imagechain;
+                       else
+                               Host_Error("R_FreeTexture: image not linked in pool\n");
+                       if (image->texnum)
+                               qglDeleteTextures(1, &image->texnum);
+                       if (image->blockallocation)
+                               Mem_Free(image->blockallocation);
+                       Mem_Free(image);
+               }
        }
 
        if (glt->identifier)
@@ -339,7 +343,7 @@ static void GL_TextureMode_f (void)
        }
 
        for (i = 0;i < 6;i++)
-               if (!Q_strcasecmp (modes[i].name, Cmd_Argv(1) ) )
+               if (!strcasecmp (modes[i].name, Cmd_Argv(1) ) )
                        break;
        if (i == 6)
        {
@@ -473,11 +477,18 @@ static void r_textures_start(void)
        texturemempool = Mem_AllocPool("Texture Info");
        texturedatamempool = Mem_AllocPool("Texture Storage (not yet uploaded)");
        textureprocessingmempool = Mem_AllocPool("Texture Processing Buffers");
+
+       // Disable JPEG screenshots if the DLL isn't loaded
+       if (! JPEG_OpenLibrary ())
+               Cvar_SetValueQuick (&scr_screenshot_jpeg, 0);
 }
 
 static void r_textures_shutdown(void)
 {
        rtexturepool_t *temp;
+
+       JPEG_CloseLibrary ();
+
        while(gltexturepoolchain)
        {
                temp = (rtexturepool_t *) gltexturepoolchain;
@@ -549,7 +560,7 @@ void R_MakeResizeBufferBigger(int size)
 static void GL_SetupTextureParameters(int flags, int texturetype)
 {
        int textureenum = gltexturetypeenums[texturetype];
-       int wrapmode = (flags & TEXF_CLAMP) ? GL_CLAMP : GL_REPEAT;
+       int wrapmode = ((flags & TEXF_CLAMP) && gl_support_clamptoedge) ? GL_CLAMP_TO_EDGE : GL_REPEAT;
 
        CHECKGLERROR
 
@@ -558,11 +569,35 @@ static void GL_SetupTextureParameters(int flags, int texturetype)
        if (gltexturetypedimensions[texturetype] >= 3)
                qglTexParameteri(textureenum, GL_TEXTURE_WRAP_R, wrapmode);
 
-       if (flags & TEXF_MIPMAP)
-               qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_min);
+       if (flags & TEXF_FORCENEAREST)
+       {
+               if (flags & TEXF_MIPMAP)
+                       qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
+               else
+                       qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+               qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+       }
+       else if (flags & TEXF_FORCELINEAR)
+       {
+               if (flags & TEXF_MIPMAP)
+               {
+                       if (gl_filter_min == GL_NEAREST_MIPMAP_LINEAR || gl_filter_min == GL_LINEAR_MIPMAP_LINEAR)
+                               qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+                       else
+                               qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
+               }
+               else
+                       qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+               qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+       }
        else
-               qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-       qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
+       {
+               if (flags & TEXF_MIPMAP)
+                       qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_min);
+               else
+                       qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
+               qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
+       }
 
        CHECKGLERROR
 }
@@ -950,6 +985,8 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *iden
 
        texinfo = R_GetTexTypeInfo(textype, flags);
        size = width * height * depth * sides * texinfo->inputbytesperpixel;
+       if (size < 1)
+               Sys_Error("R_LoadTexture: bogus texture size (%dx%dx%dx%dbppx%dsides = %d bytes)\n", width, height, depth, texinfo->inputbytesperpixel * 8, sides);
 
        // clear the alpha flag if the texture has no transparent pixels
        switch(textype)
@@ -962,7 +999,7 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *iden
                        {
                                for (i = 0;i < size;i++)
                                {
-                                       if (((qbyte *)&palette[data[i]])[3] == 255)
+                                       if (((qbyte *)&palette[data[i]])[3] < 255)
                                        {
                                                flags |= TEXF_ALPHA;
                                                break;
@@ -1020,7 +1057,7 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *iden
        {
                glt->inputtexels = Mem_Alloc(texturedatamempool, size);
                if (glt->inputtexels == NULL)
-                       Sys_Error("R_SetupTexture: out of memory\n");
+                       Sys_Error("R_LoadTexture: out of memory\n");
                memcpy(glt->inputtexels, data, size);
        }
        else