[Piglit] [PATCH] amd_compressed_atc_texture: add miptree test
Ilia Mirkin
imirkin at alum.mit.edu
Tue Apr 9 21:59:15 UTC 2019
Oh right, yeah. ETC. Not ASTC. And yes, it's very explicitly in there.
I managed to glaze over that. Go me...
On Tue, Apr 9, 2019 at 4:21 PM Jonathan Marek <jonathan at marek.ca> wrote:
>
> Yes, the tool supports KTX. I made a new version of the patch with a new
> copy of the ETC1 test which uses KTX and dropped the DDS loader.
>
> The comment after the copyright header says it is copied from ETC1
> miptree test, so I guess its already OK?
>
> On 4/9/19 12:48 PM, Ilia Mirkin wrote:
> > Back when I did this, DDS was the only output format supported by the
> > tool I was using, and while I thought about converting to KTX "by
> > hand", that seemed sufficiently unpleasant (I don't remember all the
> > details, TBH -- it's been 4 years, seemingly). Does the new tool
> > support KTX output, or still just DDS only? If it supports KTX,
> > there's existing infra in piglit to process it.
> >
> > Also, for the miptree.c header - can you include a mention that it was
> > based on the miptree.c from the ASTC tests? Otherwise the Intel
> > copyright is fairly unclear.
> >
> > On Tue, Apr 9, 2019 at 10:58 AM Jonathan Marek <jonathan at marek.ca> wrote:
> >>
> >> From: Ilia Mirkin <imirkin at alum.mit.edu>
> >>
> >> This echoes the ETC1 miptree test, and even uses the same image.
> >>
> >> Updated to work with images created with the open source tool.
> >>
> >> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
> >> Signed-off-by: Jonathan Marek <jonathan at marek.ca>
> >> ---
> >> tests/spec/CMakeLists.txt | 1 +
> >> .../CMakeLists.gles2.txt | 6 +
> >> .../amd_compressed_atc_texture/CMakeLists.txt | 1 +
> >> .../spec/amd_compressed_atc_texture/miptree.c | 264 ++++++++++++++++++
> >> .../waffles-compressed-atc-64x32-miptree.dds | Bin 0 -> 1504 bytes
> >> ...waffles-decompressed-rgb-64x32-miptree.dds | Bin 0 -> 11048 bytes
> >> tests/util/CMakeLists.txt | 1 +
> >> tests/util/piglit-dds.c | 211 ++++++++++++++
> >> tests/util/piglit-dds.h | 72 +++++
> >> 9 files changed, 556 insertions(+)
> >> create mode 100644 tests/spec/amd_compressed_atc_texture/CMakeLists.gles2.txt
> >> create mode 100644 tests/spec/amd_compressed_atc_texture/CMakeLists.txt
> >> create mode 100644 tests/spec/amd_compressed_atc_texture/miptree.c
> >> create mode 100644 tests/spec/amd_compressed_atc_texture/waffles-compressed-atc-64x32-miptree.dds
> >> create mode 100644 tests/spec/amd_compressed_atc_texture/waffles-decompressed-rgb-64x32-miptree.dds
> >> create mode 100644 tests/util/piglit-dds.c
> >> create mode 100644 tests/util/piglit-dds.h
> >>
> >> diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
> >> index 7f0d3a44e..6169041ff 100644
> >> --- a/tests/spec/CMakeLists.txt
> >> +++ b/tests/spec/CMakeLists.txt
> >> @@ -1,5 +1,6 @@
> >> add_subdirectory (amd_framebuffer_multisample_advanced)
> >> add_subdirectory (amd_depth_clamp_separate)
> >> +add_subdirectory (amd_compressed_atc_texture)
> >> add_subdirectory (amd_performance_monitor)
> >> add_subdirectory (amd_pinned_memory)
> >> add_subdirectory (arb_arrays_of_arrays)
> >> diff --git a/tests/spec/amd_compressed_atc_texture/CMakeLists.gles2.txt b/tests/spec/amd_compressed_atc_texture/CMakeLists.gles2.txt
> >> new file mode 100644
> >> index 000000000..0509e44ae
> >> --- /dev/null
> >> +++ b/tests/spec/amd_compressed_atc_texture/CMakeLists.gles2.txt
> >> @@ -0,0 +1,6 @@
> >> +include_directories(
> >> + ${GLEXT_INCLUDE_DIR}
> >> + ${OPENGL_INCLUDE_PATH}
> >> +)
> >> +link_libraries(piglitutil_${piglit_target_api})
> >> +piglit_add_executable(amd_compressed_atc_texture-miptree miptree.c)
> >> diff --git a/tests/spec/amd_compressed_atc_texture/CMakeLists.txt b/tests/spec/amd_compressed_atc_texture/CMakeLists.txt
> >> new file mode 100644
> >> index 000000000..144a306f4
> >> --- /dev/null
> >> +++ b/tests/spec/amd_compressed_atc_texture/CMakeLists.txt
> >> @@ -0,0 +1 @@
> >> +piglit_include_target_api()
> >> diff --git a/tests/spec/amd_compressed_atc_texture/miptree.c b/tests/spec/amd_compressed_atc_texture/miptree.c
> >> new file mode 100644
> >> index 000000000..5a2cb044a
> >> --- /dev/null
> >> +++ b/tests/spec/amd_compressed_atc_texture/miptree.c
> >> @@ -0,0 +1,264 @@
> >> +/*
> >> + * Copyright 2012 Intel Corporation
> >> + *
> >> + * 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.
> >> + */
> >> +
> >> +/**
> >> + * \file
> >> + * \brief Test texturing from an ATC miptree of a real image.
> >> + *
> >> + * Copied from identical ETC1 test.
> >> + *
> >> + * This test uses two data files. The file waffles-compressed-atc-64x32.dds
> >> + * contains a full miptree in GL_ATC_RGB_AMD format of a 2D texture of
> >> + * waffles and fruit [1]. The base level size is 64x32 pixels. The file
> >> + * waffles-decompressed-rgb-64x32.dds contains a parallel miptree in GL_RGBA
> >> + * format. Each of its RGB images was obtained by decompressing the corresponding
> >> + * ATC image with AMD-supplied Compressonator [2].
> >> + *
> >> + * This test draws each miplevel i of the ATC texture such that the image's
> >> + * lower left corner is at (x=0, y=sum(height of miplevel j for j=0 to i-1)),
> >> + * and it draws each miplevel of the RGB texture to the right of its
> >> + * corresponding ETC1 image. Then it compares that the images are identical.
> >> + *
> >> + * [1] The reference image is located at http://people.freedesktop.org/~chadversary/permalink/2012-07-09/1574cff2-d091-4421-a3cf-b56c7943d060.jpg.
> >> + * [2] https://github.com/GPUOpen-Tools/Compressonator
> >> + */
> >> +
> >> +#include "piglit-util-gl.h"
> >> +#include "piglit-dds.h"
> >> +
> >> +/* note: open Compressonator tool is buggy and fails to generate the 7th 1x1 level */
> >> +#define num_levels 6
> >> +#define level0_width 64
> >> +#define level0_height 32
> >> +
> >> +#define num_vertices 4
> >> +
> >> +static const int window_width = 2 * level0_width;
> >> +static const int window_height = 2 * level0_height;
> >> +
> >> +PIGLIT_GL_TEST_CONFIG_BEGIN
> >> +
> >> + config.supports_gl_es_version = 20;
> >> +
> >> + config.window_width = window_width;
> >> + config.window_height = window_height;
> >> + config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
> >> +
> >> +PIGLIT_GL_TEST_CONFIG_END
> >> +
> >> +
> >> +static GLuint prog;
> >> +
> >> +/* Texture objects. */
> >> +static GLuint compressed_tex;
> >> +static GLuint decompressed_tex;
> >> +
> >> +/**
> >> + * The \a filename is relative to the current test's source directory.
> >> + *
> >> + * A new texture is created and returned in \a tex_name.
> >> + */
> >> +static void
> >> +load_texture(const char *filename, GLuint *tex_name)
> >> +{
> >> + struct piglit_dds *dds;
> >> + const struct piglit_dds_info *info;
> >> + char filepath[4096];
> >> + int i;
> >> +
> >> + piglit_join_paths(filepath, sizeof(filepath), 5,
> >> + piglit_source_dir(),
> >> + "tests",
> >> + "spec",
> >> + "amd_compressed_atc_texture",
> >> + filename);
> >> +
> >> + dds = piglit_dds_read_file(filepath);
> >> + if (dds == NULL)
> >> + piglit_report_result(PIGLIT_FAIL);
> >> +
> >> + info = piglit_dds_get_info(dds);
> >> + assert(info->num_miplevels >= num_levels);
> >> + assert(info->pixel_width == level0_width);
> >> + assert(info->pixel_height== level0_height);
> >> +
> >> + glGenTextures(1, tex_name);
> >> + glBindTexture(GL_TEXTURE_2D, *tex_name);
> >> + glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
> >> + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, num_levels - 1);
> >> +
> >> + for (i = 0; i < num_levels; i++) {
> >> + const struct piglit_dds_image *img = piglit_dds_get_image(dds, i);
> >> + if (info->gl_internal_format == GL_RGBA)
> >> + glTexImage2D(GL_TEXTURE_2D, i,
> >> + info->gl_internal_format,
> >> + img->pixel_width,
> >> + img->pixel_height,
> >> + 0,
> >> + GL_RGBA, GL_UNSIGNED_BYTE,
> >> + img->data);
> >> + else
> >> + glCompressedTexImage2D(GL_TEXTURE_2D, i,
> >> + info->gl_internal_format,
> >> + img->pixel_width,
> >> + img->pixel_height,
> >> + 0,
> >> + img->size,
> >> + img->data);
> >> + if (glGetError())
> >> + piglit_report_result(PIGLIT_FAIL);
> >> + }
> >> +
> >> + piglit_dds_destroy(dds);
> >> +}
> >> +
> >> +void
> >> +piglit_init(int argc, char **argv)
> >> +{
> >> + static const char compressed_filename[] = "waffles-compressed-atc-64x32-miptree.dds";
> >> + static const char decompressed_filename[] = "waffles-decompressed-rgb-64x32-miptree.dds";
> >> +
> >> + const char vs_source[] =
> >> + "#version 100\n"
> >> + "\n"
> >> + "uniform vec2 window_pixel_size;\n"
> >> + "uniform vec2 level_pixel_size;\n"
> >> + "uniform vec2 pixel_offset;\n"
> >> + "\n"
> >> + "// vertex is some corner of the unit square [0,1]^2 \n"
> >> + "attribute vec2 vertex;\n"
> >> + "varying vec2 tex_coord;\n"
> >> + "\n"
> >> + "void main()\n"
> >> + "{\n"
> >> + " vec2 pos = vertex;\n"
> >> + " pos *= level_pixel_size;\n"
> >> + " pos += pixel_offset;\n"
> >> + " pos /= 0.5 * window_pixel_size;\n"
> >> + " pos -= vec2(1, 1);\n"
> >> + " gl_Position = vec4(pos.xy, 0.0, 1.0);\n"
> >> + "\n"
> >> + " tex_coord = vertex;\n"
> >> + "}\n";
> >> +
> >> + const char fs_source[] =
> >> + "#version 100\n"
> >> + "precision highp float;\n"
> >> + "\n"
> >> + "uniform sampler2D tex;\n"
> >> + "varying vec2 tex_coord;\n"
> >> + "\n"
> >> + "void main()\n"
> >> + "{\n"
> >> + " vec4 t = texture2D(tex, tex_coord);\n"
> >> + " gl_FragColor = vec4(t.rgb, 1.0);\n"
> >> + "}\n";
> >> +
> >> + /* Draw a square triangle strip. */
> >> + const GLfloat vertices[2 * num_vertices] = {
> >> + 0, 0,
> >> + 1, 0,
> >> + 1, 1,
> >> + 0, 1,
> >> + };
> >> +
> >> + GLint vertex_loc;
> >> + GLuint vertex_buf;
> >> +
> >> + piglit_require_extension("GL_AMD_compressed_ATC_texture");
> >> +
> >> + load_texture(compressed_filename, &compressed_tex);
> >> + load_texture(decompressed_filename, &decompressed_tex);
> >> +
> >> + glClearColor(1.0, 0.0, 0.0, 1.0);
> >> + glViewport(0, 0, window_width, window_height);
> >> +
> >> + prog = piglit_build_simple_program(vs_source, fs_source);
> >> + glUseProgram(prog);
> >> +
> >> + vertex_loc = glGetAttribLocation(prog, "vertex");
> >> + glGenBuffers(1, &vertex_buf);
> >> + glBindBuffer(GL_ARRAY_BUFFER, vertex_buf);
> >> + glEnableVertexAttribArray(vertex_loc);
> >> + glVertexAttribPointer(vertex_loc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
> >> + glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices,
> >> + GL_STATIC_DRAW);
> >> +
> >> + glUniform1i(glGetUniformLocation(prog, "tex"), 0);
> >> + glActiveTexture(GL_TEXTURE0);
> >> + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
> >> + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
> >> +
> >> + glUniform2f(glGetUniformLocation(prog, "window_pixel_size"),
> >> + window_width, window_height);
> >> +}
> >> +
> >> +static void
> >> +minify(int *x)
> >> +{
> >> + assert(*x > 0);
> >> +
> >> + if (*x > 1)
> >> + *x >>= 1;
> >> +}
> >> +
> >> +enum piglit_result
> >> +piglit_display(void)
> >> +{
> >> + GLint pixel_offset_loc = glGetUniformLocation(prog, "pixel_offset");
> >> + GLint level_pixel_size_loc = glGetUniformLocation(prog, "level_pixel_size");
> >> +
> >> + int level = 0;
> >> + int level_width = level0_width;
> >> + int level_height = level0_height;
> >> + int y_offset = 0;
> >> +
> >> + bool pass = true;
> >> +
> >> + glClear(GL_COLOR_BUFFER_BIT);
> >> +
> >> + for (level = 0; level < num_levels; ++level) {
> >> + glUniform2f(level_pixel_size_loc,
> >> + (float) level_width,
> >> + (float) level_height);
> >> +
> >> + /* Draw miplevel of compressed texture. */
> >> + glBindTexture(GL_TEXTURE_2D, compressed_tex);
> >> + glUniform2f(pixel_offset_loc, 0, y_offset);
> >> + glDrawArrays(GL_TRIANGLE_FAN, 0, num_vertices);
> >> +
> >> + /* Draw miplevel of decompressed texture. */
> >> + glBindTexture(GL_TEXTURE_2D, decompressed_tex);
> >> + glUniform2f(pixel_offset_loc, level0_width, y_offset);
> >> + glDrawArrays(GL_TRIANGLE_FAN, 0, num_vertices);
> >> +
> >> + y_offset += level_height;
> >> + minify(&level_width);
> >> + minify(&level_height);
> >> + }
> >> +
> >> + pass = piglit_probe_rect_halves_equal_rgba(0, 0, window_width, window_height);
> >> + piglit_present_results();
> >> +
> >> + return pass ? PIGLIT_PASS : PIGLIT_FAIL;
> >> +}
> >> diff --git a/tests/spec/amd_compressed_atc_texture/waffles-compressed-atc-64x32-miptree.dds b/tests/spec/amd_compressed_atc_texture/waffles-compressed-atc-64x32-miptree.dds
> >> new file mode 100644
> >> index 0000000000000000000000000000000000000000..495e565b9ad0c535366c3fdbf92375e54574530f
> >> GIT binary patch
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> >> lp{XQ%z9I-N38F{K0LI6<N+MNvCx_1tpM7u3<y$vN`v-g6D{TM(
> >>
> >> literal 0
> >> HcmV?d00001
> >>
> >> diff --git a/tests/spec/amd_compressed_atc_texture/waffles-decompressed-rgb-64x32-miptree.dds b/tests/spec/amd_compressed_atc_texture/waffles-decompressed-rgb-64x32-miptree.dds
> >> new file mode 100644
> >> index 0000000000000000000000000000000000000000..a5b47df2b828feef99e283be042a24631e422098
> >> GIT binary patch
> >> literal 11048
> >> zcmcJVe{fXQ701*5(a9ej8=a1<I11}f>@u-+Z5_G}PIc9aPwT*{l&+%H1&gdA%mM=h
> >> z1Y{8twxJ1YP{?47E*8uW4M`-BjZ$Rkn6iT48tM>#pxqf5XAvz=V>+kjd$Z^5eUBv}
> >> zcDnlEz72VM?&qBI-n;KDH{X2M*kvUpB|j?re#uxKZ(vHkhd)Y6elR$k_n%|=H*d`U
> >> zHnvMjNd8xEO3QA*XnUC^(ZDxE^es{U*F<<fQu_OO-#h~Y1Ej;BY<rnsngq7}<waUF
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> >> zKbm|j3di1v(_2kbsXgwqh=#lb_B?kBWp at SWUmd@-pbsNN>}unrL6pZ#ddTl~*@y={
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> >> zA~M{i3T%tJ<l*lNerUNP54t<H;s5XSJ at n1dKPuq=apjF<ZV##v{-?XEEPq~&4V{4^
> >> z{%1IUr*>6wFBz0c_-&->eWVi)Jz!mvaZQT2+zPm(58xm1m05_pjPN!O8;V2Ed#Nc<
> >> zLV6CQ?r=vhz#r~(lGln1ymiFi>H#u214HB>?|=HEqtw at 4ubklxkb~j;<vNTJxqvrv
> >> zfDyfb+9L;&hsSTafPna;{_vI at z#Tb|<3POOZYIi9?Zq8=fIE6XaxhYV93#1=kVWm{
> >> zDU at lASfm@gq?4+3lMwNglCQMDW0zh=0bbJy<}S|Tt06j8a~q{YZbj$x33O=g)r2wb
> >> zb5oE%10<LG6j6UEHHI#r)RK!Rx5-6jE1wJUq@$y#ck>No?hh%jo#Q&`P#^aNGw|6q
> >> zb)5F|qD^0uIS&T7x6T`{;2R at y^Zdcgsn at A--qiA<{#)maBBwucA?_H(AMVHjfIGaM
> >> z{*njy!@Zb)+rt-9B2Ze?|8!@RfcRs?c^dvhy~H2xx<C2=Iq<nX3h4o<J^X8 at Tu7)n
> >> zkUkLq&gB!8zxiQI^?>BStmd^WgB$?VedCPrss~m~9&M{V>W`YkJLW4 at z<=-Z305CS
> >> z?cr{kSygw*LI24;-`OAT$N}n)9MsMKnd$@hi#zIH^V4!gYLZ`#@LzxT1O;+{{znb~
> >> z>JNAH07moxoZ*iVJs|amJ9+ at _I&c?%z5l;D)TsR7tosjl4NPw`sPd8P$i?R at 1)s-U
> >> zOsp!VSUh_Yx%oY4+7h5dm6sm<)hIH!*TI^rMk~^f`KaO6 at s#ko6nke~uEu&^ljL}<
> >> zE0`RwZ`m&u*pB$UHlhK(KhQ`;{nY#F(+X^7Vg){VZ4qS?LHc}OHQ#ganuMV*dHtK?
> >> zH6Y;a at 9K{n0CC57&n;Kk+;xArJN=OZ`0F`<vz~)3Ps|<GUvl8|M=s$1#Xno^{>Z_Z
> >> zj9Sm&_#f&VaIX40{o!8BKgd0xgZlSYUO{Fz-?uRD)cLI(AP)y-|3uMllo5bG$R5uq
> >> zT52i?^z3d_p!V<<ob`vh&EK(}IbZ+#CSPsqf88J6=>1~-FYY)Fa14mIjMDeg2XICX
> >> z<QNeD-CLhk{&N3V7>Pbj at 3b&;X<lz@<on+0e}_NL{X^A1S!K||zyvb5Zoua*Q`~;t
> >> zB?Q7 at 4?PvVk=mQXiWINss~;IdUVa`2u(sP59c^8ssl!b|u6`7m9h?*9$cA$60~clZ
> >> z^S~!{cd9YV+u-vT_&oV-ip;OyBlDXNd7JM!6ouyrg`5<AmOYsxu&w1y+Oz*KU-L}r
> >> z?d?;ede)e~55Rdq!S`qKIgPCyR5N>`@|RJ(mHVtgclbXS4=BVRIl#88O=J}J&tex+
> >> zCQ_=rB?lPAUq<o&V&A$!f0J{dL;U_fy<`r2YRy~bj}h+CSVE21-n;)m!5z<9#XCR3
> >> zxnflnd3}aL>Mo<yfBNlXD6IJ-2LRqeF at Mxt+~ME7Y at EW%0bd7C?0DG91L_Wj^w(;p
> >> zyPr7qm2yYjr3d8svXuw+ZfWVDl`E^rmv<I-jOc%HclJO0rT at i$_T)<lNd5KRM-RYR
> >> z2R*NYzK1`+_F4Yue=tP<XZmn#m;`^g1L*<uexj*e^#DdV>*(&-PCZp1?Blh&$4-!c
> >> zRy|{a1%5}^Iqw?E@;XJwZ02Kv$!@wrk>T~y_Ia04i1!1LfQO!)e=TLU8uaQ@*Ha&_
> >> zzfZiq$$DnP9ZP)0vi@`SZ)M#}6bMDAW#>MwIro2-kN-T|8rvvZolyAv0V;|SB%g-v
> >> zkL}7S6KpwvzmB-e*z)*A=kz~TeL0Cga!?(-RQV$Za7PZD{?2<<-M_QzZv=n118j at C
> >> zjQ89>zqq&LgWZ=#Yg7&}I{mY?e9xxC>y_4p6Rr9`7rc^CcYquOc+FaQ*99bbklLp!
> >> zc<s)>-v&FwTd%+V%=TRVfnb;vTzkC-Q1cbhn8I(IqvqnyBb<dq<Ll?;pXD4_)cTcs
> >> zmPZBmKl}?hxPnmk;rvm5aQfIAR_`MZx<9s2^Y!uP2i-Xb;*Mhg+wh0CP_*aS`_5@|
> >> zD6%AOxl6yq!T}Q6wydYjmXM8X13#zMFuTK)ZGNx-|6TV|A64)=0JQVHuKxR}3SPVA
> >> zdADH&wO1GxeLWrdXKuVmajskVeRE42-E{M9<n?-K%G99Ru6Qy=;CI1?$nQ58cGnR9
> >> zSY3i1U9^UR;iwIqCwmSZ<MStf&&j}9{4q8~?;FxzcUQU4as%%pRlh!`Kk^{{2VUW4
> >> zbX at OZ-uM~Zmn>UNp;-|H@&E>%4VpD4lFvbLf4DpS<1gSoVbI$ed5w^Mv(w5!I2fP}
> >> zk?B?*^jc#3*o*fTYL7l}_&eWA?PU~ixsE&i#T)KG>W&`J{Ur~2?XfN17^gotU)3Jo
> >> zUHcB6?T%bvjiiD8M-LzmAQtjd^U}$Rx2o=-G_M17oWAlNeE`H8y`Mdfd(^`EQ?LK-
> >> z-Q8pa0_5 at fY)JiOEc88kztI2D+Ij-IKaPQOdP^U03*r%x;H-!9y?K(K_cJXG&ydf<
> >> z-#J7=3iBPluVp&cmXpEHKtR>K<LLN7KF0Z)UVt~Xm&C=WUOX>nO#MA#ublsgiY at Uw
> >> zpZUFtt>)0<v(2GB%HJQJXM8n>A>x1Z#zqwz at d0um-qy(RO-6En_y=37v^gkC>yMH6
> >> z<NG9uD|3K5IMjI8;9T<YF$dHF at j;;uR%o^1>_;=l_f8tQ<7ooB>MCjDO#ZHEfmgA9
> >> z+E at bh(=Jxz8r%fTZoiGbsE;2<`6#=64);yc9-QAv{A at BxVDHvPEfN(T3UMC^h%a%m
> >> z?f}UJqg7lPi^WH5iI4TA{zA;{D{i$wOdW}h5%J9i!<K`vr_7cE#P6-W#>#=XfBqKV
> >> z-?2Ydw)zXP<=HE?_1MMy5nn(pkbjv2^1pZCm6R}CYQ#J&Z;o9oeqxD_pL_7LE at s}{
> >> z<@|4KTr}sFaSCil`5wPz>c!TW#Pz*9MDK4l=pSo*6gBvHokoVA$Lpk$d at sW1yxt=R
> >> z=+onUXC2#me9S?`oLO#*k2&-#9(=}tn3#jmvNo)qhxEL*L5(N)yQ@$5dmDgl#FQSx
> >> zsGm!)jrj1sW70T9lw&v5`V`26#5MWe4!|2AKIVe>5?ei&ah%@~U(n;XweF_XtNvt*
> >> zjd>uxfO$w<%mYYVse$-g&x9QDk$-^v1H{zt2VY)xFM%LG`vGC at 9i9Era=ym%@tY^f
> >> z$Ffd$H$QLI&Y8I!f1kvxjm7D;wl3;Bo>MG(BBt(3{CxkRBk?oaqXcmM+_`F!MV!Ce
> >> z-7#;RijTSIv9axpkC;XvsN!P|5?9uR68p)@I5qF+QttX3<oaD0`QKl0e940z|Kn7P
> >> z%^h<=Y#oV<5pzLYkmEH65O0}-xa;vH_ZSiX-Nu#N>wG3-kbA at p1cM4aHnt@$Vgoo!
> >> zY>ayC^zDN?U*Y50O)t&)xw at WVjCehC=4iKm`YO6V_HB(VQ0%Muh1wt2BYZ}-K5*9l
> >> znSE^}$bN_|@%7KZ{`wr^Vg4>jL-xbxU>kErTzm$={-^fTT60)Djjz>Sw?&%I|2kFc
> >> zt4YW9Zy)&kHQ9gTJcEF~FSa{6dCkq=O9?x6 at O$15<C at B9O4Wtbe%KeE<=kKP!{=Zg
> >> z*iU*`_Qz)khc?b2A+w*)y&N0+Nnc=J>?iZk at 4ZtmRM6`$*HSDJpu=wu))_woiLh6J
> >> zzr*hUyyWLH;^){`ke_43=iuk~4Edbw2PxYB{9}Ay#OD~^#t4qQUZY6HLzM1_(|-Y0
> >> C>eV{{
> >>
> >> literal 0
> >> HcmV?d00001
> >>
> >> diff --git a/tests/util/CMakeLists.txt b/tests/util/CMakeLists.txt
> >> index a5f080156..f6a2b69a9 100644
> >> --- a/tests/util/CMakeLists.txt
> >> +++ b/tests/util/CMakeLists.txt
> >> @@ -48,6 +48,7 @@ set(UTIL_GL_INCLUDES
> >> set(UTIL_GL_SOURCES
> >> fdo-bitmap.c
> >> minmax-test.c
> >> + piglit-dds.c
> >> piglit-dispatch.c
> >> piglit-dispatch-init.c
> >> piglit-fbo.cpp
> >> diff --git a/tests/util/piglit-dds.c b/tests/util/piglit-dds.c
> >> new file mode 100644
> >> index 000000000..2ab6e6af5
> >> --- /dev/null
> >> +++ b/tests/util/piglit-dds.c
> >> @@ -0,0 +1,211 @@
> >> +#include <assert.h>
> >> +#include <stdarg.h>
> >> +#include <stdlib.h>
> >> +#include <string.h>
> >> +
> >> +#include "piglit-dds.h"
> >> +#include "piglit-util-gl.h"
> >> +
> >> +
> >> +// DDS values taken from http://www.mindcontrol.org/~hplus/graphics/dds-info/
> >> +
> >> +// little-endian, of course
> >> +
> >> +// DDS_header.dwFlags
> >> +#define DDSD_CAPS 0x00000001
> >> +#define DDSD_HEIGHT 0x00000002
> >> +#define DDSD_WIDTH 0x00000004
> >> +#define DDSD_PITCH 0x00000008
> >> +#define DDSD_PIXELFORMAT 0x00001000
> >> +#define DDSD_MIPMAPCOUNT 0x00020000
> >> +#define DDSD_LINEARSIZE 0x00080000
> >> +#define DDSD_DEPTH 0x00800000
> >> +
> >> +// DDS_header.sPixelFormat.dwFlags
> >> +#define DDPF_ALPHAPIXELS 0x00000001
> >> +#define DDPF_FOURCC 0x00000004
> >> +#define DDPF_INDEXED 0x00000020
> >> +#define DDPF_RGB 0x00000040
> >> +
> >> +// DDS_header.sCaps.dwCaps1
> >> +#define DDSCAPS_COMPLEX 0x00000008
> >> +#define DDSCAPS_TEXTURE 0x00001000
> >> +#define DDSCAPS_MIPMAP 0x00400000
> >> +
> >> +// DDS_header.sCaps.dwCaps2
> >> +#define DDSCAPS2_CUBEMAP 0x00000200
> >> +#define DDSCAPS2_CUBEMAP_POSITIVEX 0x00000400
> >> +#define DDSCAPS2_CUBEMAP_NEGATIVEX 0x00000800
> >> +#define DDSCAPS2_CUBEMAP_POSITIVEY 0x00001000
> >> +#define DDSCAPS2_CUBEMAP_NEGATIVEY 0x00002000
> >> +#define DDSCAPS2_CUBEMAP_POSITIVEZ 0x00004000
> >> +#define DDSCAPS2_CUBEMAP_NEGATIVEZ 0x00008000
> >> +#define DDSCAPS2_VOLUME 0x00200000
> >> +
> >> +union DDS_header {
> >> + struct {
> >> + unsigned int dwMagic;
> >> + unsigned int dwSize;
> >> + unsigned int dwFlags;
> >> + unsigned int dwHeight;
> >> + unsigned int dwWidth;
> >> + unsigned int dwPitchOrLinearSize;
> >> + unsigned int dwDepth;
> >> + unsigned int dwMipMapCount;
> >> + unsigned int dwReserved1[ 11 ];
> >> +
> >> + // DDPIXELFORMAT
> >> + struct {
> >> + unsigned int dwSize;
> >> + unsigned int dwFlags;
> >> + unsigned int dwFourCC;
> >> + unsigned int dwRGBBitCount;
> >> + unsigned int dwRBitMask;
> >> + unsigned int dwGBitMask;
> >> + unsigned int dwBBitMask;
> >> + unsigned int dwAlphaBitMask;
> >> + } sPixelFormat;
> >> +
> >> + // DDCAPS2
> >> + struct {
> >> + unsigned int dwCaps1;
> >> + unsigned int dwCaps2;
> >> + unsigned int dwDDSX;
> >> + unsigned int dwReserved;
> >> + } sCaps;
> >> + unsigned int dwReserved2;
> >> + };
> >> + char data[ 128 ];
> >> +};
> >> +
> >> +#define FOURCC(a, b, c, d) ((a) << 0 | (b) << 8 | (c) << 16 | (d) << 24)
> >> +
> >> +#define DDS_MAGIC FOURCC('D', 'D', 'S', ' ')
> >> +#define ATC_RGB FOURCC('A', 'T', 'C', ' ')
> >> +#define ATC_RGBA_E FOURCC('A', 'T', 'C', 'A')
> >> +#define ATC_RGBA_I FOURCC('A', 'T', 'C', 'I')
> >> +
> >> +struct piglit_dds {
> >> + struct piglit_dds_info info;
> >> + uint8_t *data;
> >> + size_t size;
> >> +
> >> + struct piglit_dds_image *images;
> >> +};
> >> +
> >> +void
> >> +piglit_dds_destroy(struct piglit_dds *self)
> >> +{
> >> + free(self->images);
> >> + free(self->data);
> >> + free(self);
> >> +}
> >> +
> >> +struct piglit_dds *
> >> +piglit_dds_read_file(const char *filename)
> >> +{
> >> + struct piglit_dds *ret = calloc(1, sizeof(struct piglit_dds));
> >> + FILE *f;
> >> + bool success = false;
> >> + int read, i, shift = 0, factor = 0;
> >> + union DDS_header *header;
> >> +
> >> + if (!ret)
> >> + goto err_ret;
> >> +
> >> + f = fopen(filename, "rb");
> >> +
> >> + if (!f)
> >> + goto err_file;
> >> +
> >> + if (fseek(f, 0, SEEK_END))
> >> + goto err_read;
> >> + ret->size = ftell(f);
> >> + if (fseek(f, 0, SEEK_SET))
> >> + goto err_read;
> >> +
> >> + ret->data = malloc(ret->size);
> >> + if (!ret->data)
> >> + goto err_read;
> >> +
> >> + read = fread(ret->data, 1, ret->size, f);
> >> + if (read < ret->size)
> >> + goto err_read;
> >> +
> >> + header = (union DDS_header*) ret->data;
> >> +
> >> + if (header->dwMagic != DDS_MAGIC)
> >> + goto err_read;
> >> +
> >> + ret->info.num_miplevels = header->dwMipMapCount;
> >> + ret->info.pixel_width = header->dwWidth;
> >> + ret->info.pixel_height = header->dwHeight;
> >> + switch (header->sPixelFormat.dwFourCC) {
> >> + case 0:
> >> + ret->info.gl_internal_format = GL_RGBA;
> >> + factor = 4;
> >> + break;
> >> + case ATC_RGB:
> >> + ret->info.gl_internal_format = GL_ATC_RGB_AMD;
> >> + shift = 1;
> >> + break;
> >> + case ATC_RGBA_I:
> >> + ret->info.gl_internal_format = GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD;
> >> + break;
> >> + case ATC_RGBA_E:
> >> + ret->info.gl_internal_format = GL_ATC_RGBA_EXPLICIT_ALPHA_AMD;
> >> + break;
> >> + default:
> >> + goto err_read;
> >> + }
> >> +
> >> + ret->images = calloc(ret->info.num_miplevels, sizeof(struct piglit_dds_image));
> >> + for (i = 0; i < ret->info.num_miplevels; i++) {
> >> + struct piglit_dds_image *img = &ret->images[i];
> >> + if (i == 0) {
> >> + img->data = ret->data + 128;
> >> + img->pixel_width = ret->info.pixel_width;
> >> + img->pixel_height = ret->info.pixel_height;
> >> + } else {
> >> + struct piglit_dds_image *prev = &ret->images[i - 1];
> >> + img->data = prev->data + prev->size;
> >> + img->pixel_width = MAX2(1, prev->pixel_width >> 1);
> >> + img->pixel_height = MAX2(1, prev->pixel_height >> 1);
> >> + }
> >> + if (header->sPixelFormat.dwFourCC)
> >> + img->size = ALIGN(img->pixel_width, 4) * ALIGN(img->pixel_height, 4);
> >> + else
> >> + img->size = img->pixel_width * img->pixel_height;
> >> + if (shift > 0)
> >> + img->size >>= shift;
> >> + if (factor > 0)
> >> + img->size *= factor;
> >> + }
> >> +
> >> + success = true;
> >> +
> >> +err_read:
> >> + fclose(f);
> >> + if (success)
> >> + return ret;
> >> + if (ret->data)
> >> + free(ret->data);
> >> +err_file:
> >> + free(ret);
> >> +err_ret:
> >> + return NULL;
> >> +}
> >> +
> >> +const struct piglit_dds_info *
> >> +piglit_dds_get_info(struct piglit_dds *self)
> >> +{
> >> + return &self->info;
> >> +}
> >> +
> >> +const struct piglit_dds_image *
> >> +piglit_dds_get_image(struct piglit_dds *self,
> >> + int miplevel)
> >> +{
> >> + assert(miplevel < self->info.num_miplevels);
> >> + return &self->images[miplevel];
> >> +}
> >> diff --git a/tests/util/piglit-dds.h b/tests/util/piglit-dds.h
> >> new file mode 100644
> >> index 000000000..28660b99d
> >> --- /dev/null
> >> +++ b/tests/util/piglit-dds.h
> >> @@ -0,0 +1,72 @@
> >> +/*
> >> + * Copyright 2015 Ilia Mirkin
> >> + *
> >> + * 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.
> >> + */
> >> +
> >> +/**
> >> + * \file
> >> + *
> >> + * \brief Utilities for the DDS file format
> >> + *
> >> + * The DDS file format specifies a simple format for storing texture
> >> + * miptrees.
> >> + */
> >> +
> >> +#include <stdint.h>
> >> +
> >> +#ifdef __cplusplus
> >> +extern "C" {
> >> +#endif
> >> +
> >> +struct piglit_dds;
> >> +
> >> +struct piglit_dds_info {
> >> + uint32_t gl_internal_format;
> >> + uint32_t num_miplevels;
> >> +
> >> + uint32_t pixel_width;
> >> + uint32_t pixel_height;
> >> +};
> >> +
> >> +struct piglit_dds_image {
> >> + const uint8_t *data;
> >> + size_t size;
> >> +
> >> + uint32_t pixel_width;
> >> + uint32_t pixel_height;
> >> +};
> >> +
> >> +void
> >> +piglit_dds_destroy(struct piglit_dds *self);
> >> +
> >> +struct piglit_dds *
> >> +piglit_dds_read_file(const char *filename);
> >> +
> >> +const struct piglit_dds_info *
> >> +piglit_dds_get_info(struct piglit_dds *self);
> >> +
> >> +const struct piglit_dds_image *
> >> +piglit_dds_get_image(struct piglit_dds *self,
> >> + int miplevel);
> >> +
> >> +#ifdef __cplusplus
> >> +}
> >> +#endif
> >> --
> >> 2.17.1
> >>
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