forked from 0ad/0ad
Ykkrosh
e53242284f
Premake: Changed to use PCH when compiling tests. CxxTest: Got rid of /Wp64 warnings. Changed TS_ASSERT_STR_EQUALS to print both strings on failure. win_internal: Added the bits that CxxTest::Win32Gui needs (because Win32Gui is now compiled with PCH and uses our sysdep headers). Disabled test_cache_policies, because it took long enough for me to read its name. This was SVN commit r4237.
135 lines
4.0 KiB
C++
135 lines
4.0 KiB
C++
#include "lib/self_test.h"
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#include "lib/res/graphics/tex.h"
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#include "lib/res/graphics/tex_codec.h"
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#include "lib/res/graphics/tex_internal.h" // tex_encode
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class TestTex : public CxxTest::TestSuite
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{
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void generate_encode_decode_compare(uint w, uint h, uint flags, uint bpp,
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const char* filename)
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{
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// generate test data
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const size_t size = w*h*bpp/8;
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u8* img = new u8[size];
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for(size_t i = 0; i < size; i++)
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img[i] = rand() & 0xFF;
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// wrap in Tex
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Tex t;
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TS_ASSERT_OK(tex_wrap(w, h, bpp, flags, img, &t));
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// encode to file format
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DynArray da;
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TS_ASSERT_OK(tex_encode(&t, filename, &da));
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memset(&t, 0, sizeof(t));
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// decode from file format
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MEM_DTOR dtor = 0; // we'll free da manually
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TS_ASSERT_OK(tex_decode(da.base, da.cur_size, dtor, &t));
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// make sure pixel format gets converted completely to plain
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TS_ASSERT_OK(tex_transform_to(&t, 0));
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// compare img
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TS_ASSERT_SAME_DATA(tex_get_data(&t), img, size);
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// cleanup
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TS_ASSERT_OK(tex_free(&t));
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TS_ASSERT_OK(da_free(&da));
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delete[] img;
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}
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public:
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// this also covers BGR and orientation transforms.
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void test_encode_decode()
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{
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// for each codec
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const TexCodecVTbl* c = 0;
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for(;;)
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{
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c = tex_codec_next(c);
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if(!c)
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break;
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// get an extension that this codec will support
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// (so that tex_encode uses this codec)
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char extension[30] = {'.'};
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strcpy_s(extension+1, 29, c->name);
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// .. make sure the c->name hack worked
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const TexCodecVTbl* correct_c;
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TS_ASSERT_OK(tex_codec_for_filename(extension, &correct_c));
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TS_ASSERT_EQUALS(c, correct_c);
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// for each test width/height combination
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const uint widths [] = { 4, 5, 4, 256, 384 };
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const uint heights[] = { 4, 4, 5, 256, 256 };
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for(size_t i = 0; i < ARRAY_SIZE(widths); i++)
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{
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// for each bit depth
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for(uint bpp = 8; bpp <= 32; bpp += 8)
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{
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uint flags = 0;
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if(!strcmp(extension, ".dds"))
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flags |= (TEX_DXT&3); // DXT3
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if(bpp == 8)
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flags |= TEX_GREY;
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else if(bpp == 32)
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flags |= TEX_ALPHA;
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// normal
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generate_encode_decode_compare(widths[i], heights[i], flags, bpp, extension);
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// top-down
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flags &= ~TEX_ORIENTATION; flags |= TEX_TOP_DOWN;
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generate_encode_decode_compare(widths[i], heights[i], flags, bpp, extension);
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// bottom up
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flags &= ~TEX_ORIENTATION; flags |= TEX_BOTTOM_UP;
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generate_encode_decode_compare(widths[i], heights[i], flags, bpp, extension);
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flags &= ~TEX_ORIENTATION;
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flags |= TEX_BGR;
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// bgr, normal
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generate_encode_decode_compare(widths[i], heights[i], flags, bpp, extension);
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// bgr, top-down
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flags &= ~TEX_ORIENTATION; flags |= TEX_TOP_DOWN;
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generate_encode_decode_compare(widths[i], heights[i], flags, bpp, extension);
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// bgr, bottom up
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flags &= ~TEX_ORIENTATION; flags |= TEX_BOTTOM_UP;
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generate_encode_decode_compare(widths[i], heights[i], flags, bpp, extension);
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} // for bpp
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} // for width/height
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} // foreach codec
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}
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// have mipmaps be created for a test image; check resulting size and pixels
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void test_mipmap_create()
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{
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u8 img[] = { 0x10,0x20,0x30, 0x40,0x60,0x80, 0xA0,0xA4,0xA8, 0xC0,0xC1,0xC2 };
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// assumes 2x2 box filter algorithm with rounding
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const u8 mipmap[] = { 0x6C,0x79,0x87 };
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Tex t;
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TS_ASSERT_OK(tex_wrap(2, 2, 24, 0, img, &t));
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TS_ASSERT_OK(tex_transform_to(&t, TEX_MIPMAPS));
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const u8* const out_img = tex_get_data(&t);
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TS_ASSERT_EQUALS((int)tex_img_size(&t), 12+3);
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TS_ASSERT_SAME_DATA(out_img, img, 12);
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TS_ASSERT_SAME_DATA(out_img+12, mipmap, 3);
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}
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void test_img_size()
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{
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char dummy_img[100*100*4]; // required
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Tex t;
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TS_ASSERT_OK(tex_wrap(100, 100, 32, TEX_ALPHA, dummy_img, &t));
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TS_ASSERT_EQUALS((int)tex_img_size(&t), 40000);
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// DXT rounds up to 4x4 blocks; DXT1a is 4bpp
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Tex t2;
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TS_ASSERT_OK(tex_wrap(97, 97, 4, DXT1A, dummy_img, &t2));
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TS_ASSERT_EQUALS((int)tex_img_size(&t2), 5000);
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}
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};
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