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      1 /*
      2  * Copyright  2015 Intel Corporation
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     21  * DEALINGS IN THE SOFTWARE.
     22  */
     23 
     24 /**
     25  * \name mesa_formats.cpp
     26  *
     27  * Verify that all mesa formats are handled in certain functions and that
     28  * the format info table is sane.
     29  *
     30  */
     31 
     32 #include <gtest/gtest.h>
     33 
     34 #include "main/formats.h"
     35 #include "main/glformats.h"
     36 
     37 /**
     38  * Debug/test: check that all uncompressed formats are handled in the
     39  * _mesa_uncompressed_format_to_type_and_comps() function. When new pixel
     40  * formats are added to Mesa, that function needs to be updated.
     41  */
     42 TEST(MesaFormatsTest, FormatTypeAndComps)
     43 {
     44    for (int fi = MESA_FORMAT_NONE + 1; fi < MESA_FORMAT_COUNT; ++fi) {
     45       mesa_format f = (mesa_format) fi;
     46       SCOPED_TRACE(_mesa_get_format_name(f));
     47 
     48       /* This function will emit a problem/warning if the format is
     49        * not handled.
     50        */
     51       if (!_mesa_is_format_compressed(f)) {
     52          GLenum datatype = 0;
     53          GLenum error = 0;
     54          GLuint comps = 0;
     55 
     56          /* If the datatype is zero, the format was not handled */
     57          _mesa_uncompressed_format_to_type_and_comps(f, &datatype, &comps);
     58          EXPECT_NE(datatype, (GLenum)0);
     59 
     60          /* If the error isn't NO_ERROR, the format was not handled.
     61           * Use an arbitrary GLenum format. */
     62          _mesa_format_matches_format_and_type(f, GL_RG, datatype,
     63                                               GL_FALSE, &error);
     64          EXPECT_EQ((GLenum)GL_NO_ERROR, error);
     65       }
     66 
     67    }
     68 }
     69 
     70 /**
     71  * Do sanity checking of the format info table.
     72  */
     73 TEST(MesaFormatsTest, FormatSanity)
     74 {
     75    for (int fi = 0; fi < MESA_FORMAT_COUNT; ++fi) {
     76       mesa_format f = (mesa_format) fi;
     77       SCOPED_TRACE(_mesa_get_format_name(f));
     78       GLenum datatype = _mesa_get_format_datatype(f);
     79       GLint r = _mesa_get_format_bits(f, GL_RED_BITS);
     80       GLint g = _mesa_get_format_bits(f, GL_GREEN_BITS);
     81       GLint b = _mesa_get_format_bits(f, GL_BLUE_BITS);
     82       GLint a = _mesa_get_format_bits(f, GL_ALPHA_BITS);
     83       GLint l = _mesa_get_format_bits(f, GL_TEXTURE_LUMINANCE_SIZE);
     84       GLint i = _mesa_get_format_bits(f, GL_TEXTURE_INTENSITY_SIZE);
     85 
     86       /* Note: Z32_FLOAT_X24S8 has datatype of GL_NONE */
     87       EXPECT_TRUE(datatype == GL_NONE ||
     88                   datatype == GL_UNSIGNED_NORMALIZED ||
     89                   datatype == GL_SIGNED_NORMALIZED ||
     90                   datatype == GL_UNSIGNED_INT ||
     91                   datatype == GL_INT ||
     92                   datatype == GL_FLOAT);
     93 
     94       if (r > 0 && !_mesa_is_format_compressed(f)) {
     95          GLint bytes = _mesa_get_format_bytes(f);
     96          EXPECT_LE((r+g+b+a) / 8, bytes);
     97       }
     98 
     99       /* Determines if the base format has a channel [rgba] or property [li].
    100       * >  indicates existance
    101       * == indicates non-existance
    102       */
    103       #define HAS_PROP(rop,gop,bop,aop,lop,iop) \
    104          do { \
    105             EXPECT_TRUE(r rop 0); \
    106             EXPECT_TRUE(g gop 0); \
    107             EXPECT_TRUE(b bop 0); \
    108             EXPECT_TRUE(a aop 0); \
    109             EXPECT_TRUE(l lop 0); \
    110             EXPECT_TRUE(i iop 0); \
    111          } while(0)
    112 
    113       switch (_mesa_get_format_base_format(f)) {
    114       case GL_RGBA:
    115          HAS_PROP(>,>,>,>,==,==);
    116          break;
    117       case GL_RGB:
    118          HAS_PROP(>,>,>,==,==,==);
    119          break;
    120       case GL_RG:
    121          HAS_PROP(>,>,==,==,==,==);
    122          break;
    123       case GL_RED:
    124          HAS_PROP(>,==,==,==,==,==);
    125          break;
    126       case GL_LUMINANCE:
    127          HAS_PROP(==,==,==,==,>,==);
    128          break;
    129       case GL_INTENSITY:
    130          HAS_PROP(==,==,==,==,==,>);
    131          break;
    132       default:
    133          break;
    134       }
    135 
    136       #undef HAS_PROP
    137 
    138    }
    139 }
    140