Signed-off-by: Henri Verbeet <[email protected]> --- tests/all.tests | 1 + tests/shaders/CMakeLists.gl.txt | 1 + tests/shaders/glsl-fs-fogscale.c | 86 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 88 insertions(+) create mode 100644 tests/shaders/glsl-fs-fogscale.c
diff --git a/tests/all.tests b/tests/all.tests index 128de58..e395865 100644 --- a/tests/all.tests +++ b/tests/all.tests @@ -261,6 +261,7 @@ add_plain_test(shaders, 'glsl-fs-discard-02') add_plain_test(shaders, 'glsl-fs-exp2') add_plain_test(shaders, 'glsl-fs-flat-color') add_plain_test(shaders, 'glsl-fs-fogcolor-statechange') +add_plain_test(shaders, 'glsl-fs-fogscale') add_plain_test(shaders, 'glsl-fs-fragcoord') add_plain_test(shaders, 'glsl-fs-fragcoord-zw-ortho') add_plain_test(shaders, 'glsl-fs-fragcoord-zw-perspective') diff --git a/tests/shaders/CMakeLists.gl.txt b/tests/shaders/CMakeLists.gl.txt index 5de5b95..ccd228a 100644 --- a/tests/shaders/CMakeLists.gl.txt +++ b/tests/shaders/CMakeLists.gl.txt @@ -72,6 +72,7 @@ piglit_add_executable (glsl-fs-color-matrix glsl-fs-color-matrix.c) piglit_add_executable (glsl-fs-exp2 glsl-fs-exp2.c) piglit_add_executable (glsl-fs-flat-color glsl-fs-flat-color.c) piglit_add_executable (glsl-fs-fogcolor-statechange glsl-fs-fogcolor-statechange.c) +piglit_add_executable (glsl-fs-fogscale glsl-fs-fogscale.c) piglit_add_executable (glsl-fs-fragcoord glsl-fs-fragcoord.c) piglit_add_executable (glsl-fs-fragcoord-zw-ortho glsl-fs-fragcoord-zw-ortho.c) piglit_add_executable (glsl-fs-fragcoord-zw-perspective glsl-fs-fragcoord-zw-perspective.c) diff --git a/tests/shaders/glsl-fs-fogscale.c b/tests/shaders/glsl-fs-fogscale.c new file mode 100644 index 0000000..cb4bdf5 --- /dev/null +++ b/tests/shaders/glsl-fs-fogscale.c @@ -0,0 +1,86 @@ +/* + * Copyright © 2013 Henri Verbeet <[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. + */ + +/** @file glsl-fs-fogscale.c + * + * Tests that gl_Fog.scale is equivalent to + * "1.0 / (gl_Fog.end - gl_Fog.start)" when fog start and end are equal. + */ + +#include "piglit-util-gl-common.h" + +PIGLIT_GL_TEST_CONFIG_BEGIN + + config.supports_gl_compat_version = 10; + + config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE; + +PIGLIT_GL_TEST_CONFIG_END + +enum piglit_result +piglit_display(void) +{ + static const float green[] = {0.0f, 1.0f, 0.0f, 1.0f}; + static const float red[] = {1.0f, 0.0f, 0.0f, 1.0f}; + GLboolean pass = GL_TRUE; + + glClearColor(0.0, 0.0, 1.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + piglit_draw_rect(-1, -1, 2, 2); + pass &= piglit_probe_rect_rgba(0, 0, + piglit_width / 2, piglit_height, + green); + pass &= piglit_probe_rect_rgba(piglit_width / 2, 0, + piglit_width / 2, piglit_height, + red); + + piglit_present_results(); + + return pass ? PIGLIT_PASS : PIGLIT_FAIL; +} + +void +piglit_init(int argc, char **argv) +{ + static const char vs_source[] = + "void main()\n" + "{\n" + " gl_Position = gl_Vertex;\n" + " gl_FogFragCoord = gl_Position.x;\n" + "}\n"; + static const char fs_source[] = + "void main()\n" + "{\n" + " gl_FragColor = vec4(gl_FogFragCoord * gl_Fog.scale * vec2(1.0, -1.0), 0.0, 1.0);\n" + "}\n"; + GLuint prog; + + piglit_require_gl_version(20); + + prog = piglit_build_simple_program(vs_source, fs_source); + + glFogf(GL_FOG_START, 0.0f); + glFogf(GL_FOG_END, 0.0f); + glUseProgram(prog); +} -- 1.7.10.4 _______________________________________________ Piglit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/piglit
