static textypeinfo_t textype_bgra_alpha = {TEXTYPE_BGRA , 4, 4, 4.0f, GL_BGRA , 4, GL_UNSIGNED_BYTE};
static textypeinfo_t textype_bgra_compress = {TEXTYPE_BGRA , 4, 4, 0.5f, GL_BGRA , GL_COMPRESSED_RGB_ARB, GL_UNSIGNED_BYTE};
static textypeinfo_t textype_bgra_alpha_compress = {TEXTYPE_BGRA , 4, 4, 1.0f, GL_BGRA , GL_COMPRESSED_RGBA_ARB, GL_UNSIGNED_BYTE};
-static textypeinfo_t textype_shadowmap = {TEXTYPE_SHADOWMAP,4,4, 4.0f, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT24_ARB, GL_UNSIGNED_INT};
-static textypeinfo_t textype_projection = {TEXTYPE_PROJECTION,4,4,4.0f, GL_LUMINANCE_ALPHA, GL_LUMINANCE16_ALPHA16, GL_UNSIGNED_SHORT};
+static textypeinfo_t textype_shadowmap16 = {TEXTYPE_SHADOWMAP,2,2, 2.0f, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT16_ARB, GL_UNSIGNED_SHORT};
+static textypeinfo_t textype_shadowmap24 = {TEXTYPE_SHADOWMAP,4,4, 4.0f, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT24_ARB, GL_UNSIGNED_INT};
typedef enum gltexturetype_e
{
case TEXTYPE_BGRA:
return &textype_bgra;
case TEXTYPE_SHADOWMAP:
- return &textype_shadowmap;
- case TEXTYPE_PROJECTION:
- return &textype_projection;
+ return (flags & TEXF_LOWPRECISION) ? &textype_shadowmap16 : &textype_shadowmap24;
default:
Host_Error("R_GetTexTypeInfo: unknown texture format");
return NULL;
if (textype == TEXTYPE_SHADOWMAP)
{
- if (flags & TEXF_COMPARE)
+ if (gl_support_arb_shadow)
{
- qglTexParameteri(textureenum, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB);CHECKGLERROR
+ if (flags & TEXF_COMPARE)
+ {
+ qglTexParameteri(textureenum, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB);CHECKGLERROR
+ }
+ else
+ {
+ qglTexParameteri(textureenum, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE);CHECKGLERROR
+ }
qglTexParameteri(textureenum, GL_TEXTURE_COMPARE_FUNC_ARB, GL_LEQUAL);CHECKGLERROR
}
- else
- {
- qglTexParameteri(textureenum, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE);CHECKGLERROR
- qglTexParameteri(textureenum, GL_TEXTURE_COMPARE_FUNC_ARB, GL_ALWAYS);CHECKGLERROR
- }
- qglTexParameteri(textureenum, GL_DEPTH_TEXTURE_MODE_ARB, GL_INTENSITY);CHECKGLERROR
+ qglTexParameteri(textureenum, GL_DEPTH_TEXTURE_MODE_ARB, GL_LUMINANCE);CHECKGLERROR
}
CHECKGLERROR
}
break;
case TEXTYPE_SHADOWMAP:
- case TEXTYPE_PROJECTION:
break;
default:
Host_Error("R_LoadTexture: unknown texture type");
return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, flags, textype, GLTEXTURETYPE_CUBEMAP, data, palette);
}
-rtexture_t *R_LoadTextureShadowMapRectangle(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, qboolean filter)
+static int R_ShadowMapTextureFlags(int precision, qboolean filter)
{
- return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, TEXF_ALWAYSPRECACHE | TEXF_CLAMP | (filter ? TEXF_FORCELINEAR | TEXF_COMPARE : TEXF_FORCENEAREST), TEXTYPE_SHADOWMAP, GLTEXTURETYPE_RECTANGLE, NULL, NULL);
+ int flags = TEXF_ALWAYSPRECACHE | TEXF_CLAMP;
+ if (filter)
+ flags |= TEXF_FORCELINEAR | TEXF_COMPARE;
+ else
+ flags |= TEXF_FORCENEAREST;
+ if (precision <= 16)
+ flags |= TEXF_LOWPRECISION;
+ return flags;
}
-rtexture_t *R_LoadTextureCubeProjection(rtexturepool_t *rtexturepool, const char *identifier, int size, int border)
+rtexture_t *R_LoadTextureShadowMapRectangle(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int precision, qboolean filter)
{
- // maps to a 2x3 texture rectangle with normalized coordinates (must be scaled by size after lookup)
- // +-
- // XX
- // YY
- // ZZ
- rtexture_t *projection;
- unsigned short *data, *texel;
- unsigned int sizebits = 0, stepbits = 0, res, i, j, k;
- while ((1 << sizebits) < size) sizebits++;
- while ((1 << stepbits) <= border) stepbits++;
- stepbits = min(stepbits, sizebits);
- res = size>>stepbits;
- stepbits += 16 - sizebits - 1;
- data = (unsigned short *)Mem_Alloc(texturemempool, 2*sizeof(unsigned short)*res*res*6);
- texel = data;
- for (i = 0;i < 6;i++)
- {
- unsigned int x = (i&1)<<16, y = (i>>1)<<16;
- for (j = 0;j < res;j++)
- {
- for (k = 0;k < res;k++)
- {
- *texel++ = (x + ((2*k + 1)<<stepbits))/2;
- *texel++ = (y + ((2*j + 1)<<stepbits))/3;
- }
- }
- }
- projection = R_SetupTexture(rtexturepool, identifier, res, res, 1, 6, TEXF_ALWAYSPRECACHE | TEXF_FORCELINEAR | TEXF_CLAMP, TEXTYPE_PROJECTION, GLTEXTURETYPE_CUBEMAP, (unsigned char *)data, NULL);
- Mem_Free(data);
- return projection;
+ return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, R_ShadowMapTextureFlags(precision, filter), TEXTYPE_SHADOWMAP, GLTEXTURETYPE_RECTANGLE, NULL, NULL);
+}
+
+rtexture_t *R_LoadTextureShadowMap2D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int precision, qboolean filter)
+{
+ return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, R_ShadowMapTextureFlags(precision, filter), TEXTYPE_SHADOWMAP, GLTEXTURETYPE_2D, NULL, NULL);
+}
+
+rtexture_t *R_LoadTextureShadowMapCube(rtexturepool_t *rtexturepool, const char *identifier, int width, int precision, qboolean filter)
+{
+ return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, R_ShadowMapTextureFlags(precision, filter), TEXTYPE_SHADOWMAP, GLTEXTURETYPE_CUBEMAP, NULL, NULL);
}
int R_TextureHasAlpha(rtexture_t *rt)