diff options
Diffstat (limited to 'src/mesa/main')
-rw-r--r-- | src/mesa/main/mipmap.c | 2 | ||||
-rw-r--r-- | src/mesa/main/pack.c | 2 | ||||
-rw-r--r-- | src/mesa/main/rgb9e5.h | 173 | ||||
-rw-r--r-- | src/mesa/main/texfetch.c | 2 | ||||
-rw-r--r-- | src/mesa/main/texformat.c | 4 | ||||
-rw-r--r-- | src/mesa/main/texstore.c | 2 |
6 files changed, 6 insertions, 179 deletions
diff --git a/src/mesa/main/mipmap.c b/src/mesa/main/mipmap.c index 88cb5b53bf7..a6e3652c789 100644 --- a/src/mesa/main/mipmap.c +++ b/src/mesa/main/mipmap.c @@ -35,7 +35,7 @@ #include "texstore.h" #include "image.h" #include "macros.h" -#include "rgb9e5.h" +#include "../../gallium/auxiliary/util/u_format_rgb9e5.h" diff --git a/src/mesa/main/pack.c b/src/mesa/main/pack.c index 37608f26364..9c3d0854927 100644 --- a/src/mesa/main/pack.c +++ b/src/mesa/main/pack.c @@ -38,7 +38,7 @@ #include "pack.h" #include "pixeltransfer.h" #include "imports.h" -#include "rgb9e5.h" +#include "../../gallium/auxiliary/util/u_format_rgb9e5.h" /** diff --git a/src/mesa/main/rgb9e5.h b/src/mesa/main/rgb9e5.h deleted file mode 100644 index 9bb431ffe9c..00000000000 --- a/src/mesa/main/rgb9e5.h +++ /dev/null @@ -1,173 +0,0 @@ -/* - * Copyright (C) 2011 Marek Olšák <[email protected]> - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -/* Copied from EXT_texture_shared_exponent and edited. */ - -#ifndef RGB9E5_H -#define RGB9E5_H - -#include <math.h> -#include <assert.h> - -#define RGB9E5_EXPONENT_BITS 5 -#define RGB9E5_MANTISSA_BITS 9 -#define RGB9E5_EXP_BIAS 15 -#define RGB9E5_MAX_VALID_BIASED_EXP 31 - -#define MAX_RGB9E5_EXP (RGB9E5_MAX_VALID_BIASED_EXP - RGB9E5_EXP_BIAS) -#define RGB9E5_MANTISSA_VALUES (1<<RGB9E5_MANTISSA_BITS) -#define MAX_RGB9E5_MANTISSA (RGB9E5_MANTISSA_VALUES-1) -#define MAX_RGB9E5 (((float)MAX_RGB9E5_MANTISSA)/RGB9E5_MANTISSA_VALUES * (1<<MAX_RGB9E5_EXP)) -#define EPSILON_RGB9E5 ((1.0/RGB9E5_MANTISSA_VALUES) / (1<<RGB9E5_EXP_BIAS)) - -typedef union { - unsigned int raw; - float value; - struct { -#if defined(MESA_BIG_ENDIAN) || defined(PIPE_ARCH_BIG_ENDIAN) - unsigned int negative:1; - unsigned int biasedexponent:8; - unsigned int mantissa:23; -#else - unsigned int mantissa:23; - unsigned int biasedexponent:8; - unsigned int negative:1; -#endif - } field; -} float754; - -typedef union { - unsigned int raw; - struct { -#if defined(MESA_BIG_ENDIAN) || defined(PIPE_ARCH_BIG_ENDIAN) - unsigned int biasedexponent:RGB9E5_EXPONENT_BITS; - unsigned int b:RGB9E5_MANTISSA_BITS; - unsigned int g:RGB9E5_MANTISSA_BITS; - unsigned int r:RGB9E5_MANTISSA_BITS; -#else - unsigned int r:RGB9E5_MANTISSA_BITS; - unsigned int g:RGB9E5_MANTISSA_BITS; - unsigned int b:RGB9E5_MANTISSA_BITS; - unsigned int biasedexponent:RGB9E5_EXPONENT_BITS; -#endif - } field; -} rgb9e5; - -static INLINE float rgb9e5_ClampRange(float x) -{ - if (x > 0.0) { - if (x >= MAX_RGB9E5) { - return MAX_RGB9E5; - } else { - return x; - } - } else { - /* NaN gets here too since comparisons with NaN always fail! */ - return 0.0; - } -} - -static INLINE float rgb9e5_MaxOf3(float x, float y, float z) -{ - if (x > y) { - return MAX2(x, z); - } else { - return MAX2(y, z); - } -} - -/* Ok, FloorLog2 is not correct for the denorm and zero values, but we - are going to do a max of this value with the minimum rgb9e5 exponent - that will hide these problem cases. */ -static INLINE int rgb9e5_FloorLog2(float x) -{ - float754 f; - - f.value = x; - return (f.field.biasedexponent - 127); -} - -static INLINE unsigned float3_to_rgb9e5(const float rgb[3]) -{ - rgb9e5 retval; - float maxrgb; - int rm, gm, bm; - float rc, gc, bc; - int exp_shared, maxm; - double denom; - - rc = rgb9e5_ClampRange(rgb[0]); - gc = rgb9e5_ClampRange(rgb[1]); - bc = rgb9e5_ClampRange(rgb[2]); - - maxrgb = rgb9e5_MaxOf3(rc, gc, bc); - exp_shared = MAX2(-RGB9E5_EXP_BIAS-1, rgb9e5_FloorLog2(maxrgb)) + 1 + RGB9E5_EXP_BIAS; - assert(exp_shared <= RGB9E5_MAX_VALID_BIASED_EXP); - assert(exp_shared >= 0); - /* This pow function could be replaced by a table. */ - denom = pow(2, exp_shared - RGB9E5_EXP_BIAS - RGB9E5_MANTISSA_BITS); - - maxm = (int) floor(maxrgb / denom + 0.5); - if (maxm == MAX_RGB9E5_MANTISSA+1) { - denom *= 2; - exp_shared += 1; - assert(exp_shared <= RGB9E5_MAX_VALID_BIASED_EXP); - } else { - assert(maxm <= MAX_RGB9E5_MANTISSA); - } - - rm = (int) floor(rc / denom + 0.5); - gm = (int) floor(gc / denom + 0.5); - bm = (int) floor(bc / denom + 0.5); - - assert(rm <= MAX_RGB9E5_MANTISSA); - assert(gm <= MAX_RGB9E5_MANTISSA); - assert(bm <= MAX_RGB9E5_MANTISSA); - assert(rm >= 0); - assert(gm >= 0); - assert(bm >= 0); - - retval.field.r = rm; - retval.field.g = gm; - retval.field.b = bm; - retval.field.biasedexponent = exp_shared; - - return retval.raw; -} - -static INLINE void rgb9e5_to_float3(unsigned rgb, float retval[3]) -{ - rgb9e5 v; - int exponent; - float scale; - - v.raw = rgb; - exponent = v.field.biasedexponent - RGB9E5_EXP_BIAS - RGB9E5_MANTISSA_BITS; - scale = (float) pow(2, exponent); - - retval[0] = v.field.r * scale; - retval[1] = v.field.g * scale; - retval[2] = v.field.b * scale; -} - -#endif diff --git a/src/mesa/main/texfetch.c b/src/mesa/main/texfetch.c index 4acc938d093..d6d7b6b8f16 100644 --- a/src/mesa/main/texfetch.c +++ b/src/mesa/main/texfetch.c @@ -41,7 +41,7 @@ #include "texcompress_rgtc.h" #include "texfetch.h" #include "teximage.h" -#include "rgb9e5.h" +#include "../../gallium/auxiliary/util/u_format_rgb9e5.h" /** diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c index 3520f24382f..15fa61f9f79 100644 --- a/src/mesa/main/texformat.c +++ b/src/mesa/main/texformat.c @@ -385,8 +385,8 @@ _mesa_choose_tex_format( struct gl_context *ctx, GLint internalFormat, if (ctx->Extensions.EXT_texture_shared_exponent) { switch (internalFormat) { case GL_RGB9_E5: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB9_E5_FLOAT); - break; + ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_RGB9_E5_FLOAT]); + return MESA_FORMAT_RGB9_E5_FLOAT; default: ; /* fallthrough */ } diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index 5cdde4524b2..39f59e3cbd9 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -70,7 +70,7 @@ #include "teximage.h" #include "texstore.h" #include "enums.h" -#include "rgb9e5.h" +#include "../../gallium/auxiliary/util/u_format_rgb9e5.h" enum { |