diff options
Diffstat (limited to 'tests/spec')
| -rw-r--r-- | tests/spec/arb_clear_texture/CMakeLists.gl.txt | 1 | ||||
| -rw-r--r-- | tests/spec/arb_clear_texture/cube.c | 235 |
2 files changed, 236 insertions, 0 deletions
diff --git a/tests/spec/arb_clear_texture/CMakeLists.gl.txt b/tests/spec/arb_clear_texture/CMakeLists.gl.txt index 75ac54c0d..697e84f78 100644 --- a/tests/spec/arb_clear_texture/CMakeLists.gl.txt +++ b/tests/spec/arb_clear_texture/CMakeLists.gl.txt @@ -10,5 +10,6 @@ link_libraries ( piglit_add_executable (arb_clear_texture-simple simple.c) piglit_add_executable (arb_clear_texture-3d 3d.c) +piglit_add_executable (arb_clear_texture-cube cube.c) # vim: ft=cmake: diff --git a/tests/spec/arb_clear_texture/cube.c b/tests/spec/arb_clear_texture/cube.c new file mode 100644 index 000000000..43df5075e --- /dev/null +++ b/tests/spec/arb_clear_texture/cube.c @@ -0,0 +1,235 @@ +/* + * Copyright (c) 2014 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 cube.c + * + * A test of using glClearTexSubImage to clear faces of a cube + * texture. Each face is cleared to a separate color and then all of + * the faces are rendered and probed. + */ + +#include "piglit-util-gl-common.h" + +struct vertex { + float pos; + float tex_coord[3]; +}; + +struct face { + /* Color used for this face */ + float color[3]; + /* Texture coordinates needed to access this face */ + float tex_coord[3]; + + GLenum target; +}; + +static const struct face +faces[] = { + { { 0.0f, 0.0f, 1.0f }, { +1.0f, 0.0f, 0.0f }, + GL_TEXTURE_CUBE_MAP_POSITIVE_X }, + { { 0.0f, 1.0f, 0.0f }, { -1.0f, 0.0f, 0.0f }, + GL_TEXTURE_CUBE_MAP_NEGATIVE_X }, + { { 0.0f, 1.0f, 1.0f }, { 0.0f, +1.0f, 0.0f }, + GL_TEXTURE_CUBE_MAP_POSITIVE_Y }, + { { 1.0f, 0.0f, 0.0f }, { 0.0f, -1.0f, 0.0f }, + GL_TEXTURE_CUBE_MAP_NEGATIVE_Y }, + { { 1.0f, 0.0f, 1.0f }, { 0.0f, 0.0f, +1.0f }, + GL_TEXTURE_CUBE_MAP_POSITIVE_Z }, + { { 1.0f, 1.0f, 0.0f }, { 0.0f, 0.0f, -1.0f }, + GL_TEXTURE_CUBE_MAP_NEGATIVE_Z }, +}; + +PIGLIT_GL_TEST_CONFIG_BEGIN + + config.supports_gl_compat_version = 20; + config.supports_gl_es_version = 20; + + config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE; + +PIGLIT_GL_TEST_CONFIG_END + +static GLuint +create_texture(void) +{ + GLuint tex; + int i; + + glGenTextures(1, &tex); + glBindTexture(GL_TEXTURE_CUBE_MAP, tex); + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + + for (i = 0; i < 6; i++) { + glTexImage2D(faces[i].target, + 0, /* level */ + GL_RGB, + 1, 1, /* width/height */ + 0, /* border */ + GL_RGB, + GL_UNSIGNED_BYTE, + NULL); + } + + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + + if (!piglit_check_gl_error(GL_NO_ERROR)) + piglit_report_result(PIGLIT_FAIL); + + return tex; +} + +static void +clear_texture(GLuint tex) +{ + int i; + + for (i = 0; i < 6; i++) { + glClearTexSubImage(tex, + 0, /* level */ + 0, 0, i, /* x/y/z */ + 1, 1, 1, /* width/height/depth */ + GL_RGB, + GL_FLOAT, + faces[i].color); + } + + if (!piglit_check_gl_error(GL_NO_ERROR)) + piglit_report_result(PIGLIT_FAIL); +} + +static void +init_program(void) +{ + GLuint prog; + GLuint uniform; + + static const char vs_source[] = + "attribute float piglit_vertex;\n" + "attribute vec3 piglit_texcoord;\n" + "uniform vec2 fb_size;\n" + "varying vec3 tex_coord;\n" + "\n" + "void main()\n" + "{\n" + " gl_Position = vec4(vec2(piglit_vertex, 0.5) * 2.0 /\n" + " fb_size - 1.0,\n" + " 0.0, 1.0);\n" + " tex_coord = piglit_texcoord;\n" + "}\n"; + static const char fs_source[] = + "uniform samplerCube tex;\n" + "varying vec3 tex_coord;\n" + "\n" + "void main()\n" + "{\n" + " gl_FragColor = textureCube(tex, tex_coord);\n" + "}\n"; + + prog = piglit_build_simple_program(vs_source, fs_source); + + glUseProgram(prog); + + uniform = glGetUniformLocation(prog, "tex"); + glUniform1i(uniform, 0); + + uniform = glGetUniformLocation(prog, "fb_size"); + glUniform2f(uniform, piglit_width, piglit_height); +} + +void +piglit_init(int argc, char **argv) +{ + /* glClearTexture is either in the GL_ARB_clear_texture + * extension or in core in GL 4.4 + */ + if (piglit_get_gl_version() < 44 && + !piglit_is_extension_supported("GL_ARB_clear_texture")) { + printf("OpenGL 4.4 or GL_ARB_clear_texture is required.\n"); + piglit_report_result(PIGLIT_SKIP); + } + + init_program(); +} + +static void +draw_faces(void) +{ + struct vertex vertices[6]; + int i; + + for (i = 0; i < 6; i++) { + vertices[i].pos = i + 0.5f; + memcpy(vertices[i].tex_coord, + faces[i].tex_coord, + sizeof faces[i].tex_coord); + } + + glEnableVertexAttribArray(PIGLIT_ATTRIB_POS); + glVertexAttribPointer(PIGLIT_ATTRIB_POS, + 1, /* size */ + GL_FLOAT, + GL_FALSE, /* normalized */ + sizeof vertices[0], + &vertices[0].pos); + glEnableVertexAttribArray(PIGLIT_ATTRIB_TEX); + glVertexAttribPointer(PIGLIT_ATTRIB_TEX, + 3, /* size */ + GL_FLOAT, + GL_FALSE, /* normalized */ + sizeof vertices[0], + vertices[0].tex_coord); + + glDrawArrays(GL_POINTS, 0, 6); + + glDisableVertexAttribArray(PIGLIT_ATTRIB_POS); + glDisableVertexAttribArray(PIGLIT_ATTRIB_TEX); +} + +enum piglit_result +piglit_display(void) +{ + bool pass = true; + GLuint tex; + int i; + + tex = create_texture(); + + clear_texture(tex); + + glBindTexture(GL_TEXTURE_CUBE_MAP, tex); + + draw_faces(); + + glBindTexture(GL_TEXTURE_CUBE_MAP, 0); + + glDeleteTextures(1, &tex); + + for (i = 0; i < 6; i++) + pass &= piglit_probe_pixel_rgb(i, 0, faces[i].color); + + piglit_present_results(); + + return pass ? PIGLIT_PASS : PIGLIT_FAIL; +} |