#include "quakedef.h"
#include "image.h"
#include "jpeg.h"
+#include "image_png.h"
-cvar_t gl_max_size = {CVAR_SAVE, "gl_max_size", "2048"};
-cvar_t gl_max_scrapsize = {CVAR_SAVE, "gl_max_scrapsize", "256"};
-cvar_t gl_picmip = {CVAR_SAVE, "gl_picmip", "0"};
-cvar_t r_lerpimages = {CVAR_SAVE, "r_lerpimages", "1"};
-cvar_t r_precachetextures = {CVAR_SAVE, "r_precachetextures", "1"};
-cvar_t gl_texture_anisotropy = {CVAR_SAVE, "gl_texture_anisotropy", "1"};
+cvar_t gl_max_size = {CVAR_SAVE, "gl_max_size", "2048", "maximum allowed texture size, can be used to reduce video memory usage, note: this is automatically reduced to match video card capabilities (such as 256 on 3Dfx cards before Voodoo4/5)"};
+cvar_t gl_max_scrapsize = {CVAR_SAVE, "gl_max_scrapsize", "256", "size of scrap textures used to combine lightmaps"};
+cvar_t gl_picmip = {CVAR_SAVE, "gl_picmip", "0", "reduces resolution of textures by powers of 2, for example 1 will halve width/height, reducing texture memory usage by 75%"};
+cvar_t r_lerpimages = {CVAR_SAVE, "r_lerpimages", "1", "bilinear filters images when scaling them up to power of 2 size (mode 1), looks better than glquake (mode 0)"};
+cvar_t r_precachetextures = {CVAR_SAVE, "r_precachetextures", "1", "0 = never upload textures until used, 1 = upload most textures before use (exceptions: rarely used skin colormap layers), 2 = upload all textures before use (can increase texture memory usage significantly)"};
+cvar_t gl_texture_anisotropy = {CVAR_SAVE, "gl_texture_anisotropy", "1", "anisotropic filtering quality (if supported by hardware), 1 sample (no anisotropy) and 8 sample (8 tap anisotropy) are recommended values"};
int gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
int gl_filter_mag = GL_LINEAR;
static unsigned char *texturebuffer;
static int texturebuffersize = 0;
-static int realmaxsize = 0;
-
static textypeinfo_t *R_GetTexTypeInfo(int textype, int flags)
{
if ((flags & (TEXF_PICMIP | TEXF_FRAGMENT)) == (TEXF_PICMIP | TEXF_FRAGMENT))
}
}
+static void GL_Texture_CalcImageSize(int texturetype, int flags, int inwidth, int inheight, int indepth, int *outwidth, int *outheight, int *outdepth)
+{
+ int picmip = 0, maxsize = 0, width2 = 1, height2 = 1, depth2 = 1;
+
+ if (gl_max_size.integer > gl_max_texture_size)
+ Cvar_SetValue("gl_max_size", gl_max_texture_size);
+
+ switch (texturetype)
+ {
+ default:
+ case GLTEXTURETYPE_1D:
+ case GLTEXTURETYPE_2D:
+ maxsize = gl_max_texture_size;
+ break;
+ case GLTEXTURETYPE_3D:
+ maxsize = gl_max_3d_texture_size;
+ break;
+ case GLTEXTURETYPE_CUBEMAP:
+ maxsize = gl_max_cube_map_texture_size;
+ break;
+ }
+
+ if (flags & TEXF_PICMIP)
+ {
+ maxsize = min(maxsize, gl_max_size.integer);
+ picmip = gl_picmip.integer;
+ }
+
+ if (outwidth)
+ {
+ for (width2 = 1;width2 < inwidth;width2 <<= 1);
+ for (width2 >>= picmip;width2 > maxsize;width2 >>= 1);
+ *outwidth = max(1, width2);
+ }
+ if (outheight)
+ {
+ for (height2 = 1;height2 < inheight;height2 <<= 1);
+ for (height2 >>= picmip;height2 > maxsize;height2 >>= 1);
+ *outheight = max(1, height2);
+ }
+ if (outdepth)
+ {
+ for (depth2 = 1;depth2 < indepth;depth2 <<= 1);
+ for (depth2 >>= picmip;depth2 > maxsize;depth2 >>= 1);
+ *outdepth = max(1, depth2);
+ }
+}
+
+
static int R_CalcTexelDataSize (gltexture_t *glt)
{
- int width2, height2, depth2, size, picmip;
+ int width2, height2, depth2, size;
+
if (glt->flags & TEXF_FRAGMENT)
- size = glt->width * glt->height * glt->depth;
- else
+ return glt->width * glt->height * glt->depth * glt->textype->internalbytesperpixel * glt->image->sides;
+
+ GL_Texture_CalcImageSize(glt->texturetype, glt->flags, glt->width, glt->height, glt->depth, &width2, &height2, &depth2);
+
+ size = width2 * height2 * depth2;
+
+ if (glt->flags & TEXF_MIPMAP)
{
- picmip = 0;
- if (glt->flags & TEXF_PICMIP)
- picmip = gl_picmip.integer;
- if (gl_max_size.integer > realmaxsize)
- Cvar_SetValue("gl_max_size", realmaxsize);
- // calculate final size
- for (width2 = 1;width2 < glt->width;width2 <<= 1);
- for (height2 = 1;height2 < glt->height;height2 <<= 1);
- for (depth2 = 1;depth2 < glt->depth;depth2 <<= 1);
- for (width2 >>= picmip;width2 > gl_max_size.integer;width2 >>= 1);
- for (height2 >>= picmip;height2 > gl_max_size.integer;height2 >>= 1);
- for (depth2 >>= picmip;depth2 > gl_max_size.integer;depth2 >>= 1);
- if (width2 < 1) width2 = 1;
- if (height2 < 1) height2 = 1;
- if (depth2 < 1) depth2 = 1;
-
- size = 0;
- if (glt->flags & TEXF_MIPMAP)
+ while (width2 > 1 || height2 > 1 || depth2 > 1)
{
- while (width2 > 1 || height2 > 1 || depth2 > 1)
- {
- size += width2 * height2 * depth2;
- if (width2 > 1)
- width2 >>= 1;
- if (height2 > 1)
- height2 >>= 1;
- if (depth2 > 1)
- depth2 >>= 1;
- }
- size++; // count the last 1x1 mipmap
+ if (width2 > 1)
+ width2 >>= 1;
+ if (height2 > 1)
+ height2 >>= 1;
+ if (depth2 > 1)
+ depth2 >>= 1;
+ size += width2 * height2 * depth2;
}
- else
- size = width2 * height2 * depth2;
}
- size *= glt->textype->internalbytesperpixel * glt->image->sides;
- return size;
+ return size * glt->textype->internalbytesperpixel * glt->image->sides;
}
void R_TextureStats_Print(qboolean printeach, qboolean printpool, qboolean printtotal)
static void r_textures_start(void)
{
- // deal with size limits of various drivers (3dfx in particular)
- qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &realmaxsize);
- CHECKGLERROR
// LordHavoc: allow any alignment
qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
CHECKGLERROR
// use the largest scrap texture size we can (not sure if this is really a good idea)
- for (block_size = 1;block_size < realmaxsize && block_size < gl_max_scrapsize.integer;block_size <<= 1);
+ for (block_size = 1;block_size * 2 <= gl_max_texture_size && block_size * 2 <= gl_max_scrapsize.integer;block_size *= 2);
texturemempool = Mem_AllocPool("texture management", 0, NULL);
// Disable JPEG screenshots if the DLL isn't loaded
if (! JPEG_OpenLibrary ())
Cvar_SetValueQuick (&scr_screenshot_jpeg, 0);
+ // TODO: support png screenshots?
+ PNG_OpenLibrary ();
}
static void r_textures_shutdown(void)
void R_Textures_Init (void)
{
- Cmd_AddCommand("gl_texturemode", &GL_TextureMode_f);
- Cmd_AddCommand("r_texturestats", R_TextureStats_f);
+ Cmd_AddCommand("gl_texturemode", &GL_TextureMode_f, "set texture filtering mode (GL_NEAREST, GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, etc)");
+ Cmd_AddCommand("r_texturestats", R_TextureStats_f, "print information about all loaded textures and some statistics");
Cvar_RegisterVariable (&gl_max_scrapsize);
Cvar_RegisterVariable (&gl_max_size);
Cvar_RegisterVariable (&gl_picmip);
static void R_FindImageForTexture(gltexture_t *glt)
{
- int i, j, best, best2, x, y, z, w, h, d, picmip;
+ int i, j, best, best2, x, y, z, w, h, d;
textypeinfo_t *texinfo;
gltexturepool_t *pool;
gltextureimage_t *image, **imagechainpointer;
image->type = GLIMAGETYPE_TILE;
image->blockallocation = NULL;
- picmip = 0;
- if (glt->flags & TEXF_PICMIP)
- picmip = gl_picmip.integer;
- // calculate final size
- if (gl_max_size.integer > realmaxsize)
- Cvar_SetValue("gl_max_size", realmaxsize);
- for (image->width = 1;image->width < glt->width;image->width <<= 1);
- for (image->height = 1;image->height < glt->height;image->height <<= 1);
- for (image->depth = 1;image->depth < glt->depth;image->depth <<= 1);
- for (image->width >>= picmip;image->width > gl_max_size.integer;image->width >>= 1);
- for (image->height >>= picmip;image->height > gl_max_size.integer;image->height >>= 1);
- for (image->depth >>= picmip;image->depth > gl_max_size.integer;image->depth >>= 1);
- if (image->width < 1) image->width = 1;
- if (image->height < 1) image->height = 1;
- if (image->depth < 1) image->depth = 1;
+ GL_Texture_CalcImageSize(glt->texturetype, glt->flags, glt->width, glt->height, glt->depth, &image->width, &image->height, &image->depth);
}
image->texturetype = glt->texturetype;
image->glinternalformat = texinfo->glinternalformat;
projects / xonotic / darkplaces.git / blobdiff