diff options
| -rw-r--r-- | tests/all.py | 4 | ||||
| -rw-r--r-- | tests/spec/arb_stencil_texturing/CMakeLists.gl.txt | 1 | ||||
| -rw-r--r-- | tests/spec/arb_stencil_texturing/draw_layered_miptree.c | 267 |
3 files changed, 272 insertions, 0 deletions
diff --git a/tests/all.py b/tests/all.py index b5d5f63ba..dc42c5cad 100644 --- a/tests/all.py +++ b/tests/all.py @@ -1849,6 +1849,10 @@ with profile.group_manager( grouptools.join('spec', 'ARB_stencil_texturing')) as g: g(['arb_stencil_texturing-draw', 'texture'], 'draw-texture') g(['arb_stencil_texturing-draw', 'texelFetch'], 'draw-texelFetch') + g(['arb_stencil_texturing-draw_layered_miptree', + '128', '64', '7', 'texture'], 'draw-layered-texture') + g(['arb_stencil_texturing-draw_layered_miptree', + '128', '64', '7', 'texelFetch'], 'draw-layered-texelFetch') with profile.group_manager( PiglitGLTest, diff --git a/tests/spec/arb_stencil_texturing/CMakeLists.gl.txt b/tests/spec/arb_stencil_texturing/CMakeLists.gl.txt index c9fb0abd7..186703a48 100644 --- a/tests/spec/arb_stencil_texturing/CMakeLists.gl.txt +++ b/tests/spec/arb_stencil_texturing/CMakeLists.gl.txt @@ -10,3 +10,4 @@ link_libraries ( piglit_add_executable (arb_stencil_texturing-blit_corrupts_state blit_corrupts_state.c) piglit_add_executable (arb_stencil_texturing-draw draw.c) +piglit_add_executable (arb_stencil_texturing-draw_layered_miptree draw_layered_miptree.c) diff --git a/tests/spec/arb_stencil_texturing/draw_layered_miptree.c b/tests/spec/arb_stencil_texturing/draw_layered_miptree.c new file mode 100644 index 000000000..89aa5d2de --- /dev/null +++ b/tests/spec/arb_stencil_texturing/draw_layered_miptree.c @@ -0,0 +1,267 @@ +/* + * Copyright © 2016 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 draw_layered_miptree.c + * + * A more complex drawing test for GL_ARB_stencil_texturing which ensures that + * sampling occurs from the right position in the texture when the texture has + * full miptree with two layers. Miplevels for layer zero have a horizontal + * gradient (0 -> 255) while levels for layer one have corresponding vertical + * gradient. + * + * The expected output is layers zero and one side-by-side for each level + * separated by a blue border. Level zero is at the bottom of the framebuffer, + * level one on top of it and so on. + */ + +#define __STDC_FORMAT_MACROS +#include <inttypes.h> +#include "piglit-util-gl.h" + +#define MAX_TEX_BASE_WIDTH 256 +#define MAX_TEX_BASE_HEIGHT 256 +#define MAX_NUM_LEVELS 8 +#define BORDER_WIDTH 2 + +PIGLIT_GL_TEST_CONFIG_BEGIN + + config.supports_gl_compat_version = 20; + config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE; + config.window_width = MAX_TEX_BASE_WIDTH * 2 + BORDER_WIDTH; + config.window_height = MAX_TEX_BASE_HEIGHT * 2 + + (MAX_NUM_LEVELS - 1) * BORDER_WIDTH; + +PIGLIT_GL_TEST_CONFIG_END + +unsigned tex_width; +unsigned tex_height; +unsigned num_levels; +int loc_level; +int loc_layer; +int loc_width; +int loc_height; + +static unsigned +get_level_draw_offset(unsigned level) +{ + unsigned offset = 0; + + while (level--) + offset += ((MAX_TEX_BASE_HEIGHT >> level) + BORDER_WIDTH); + + return offset; +} + +static bool +draw_level_and_probe(unsigned level) +{ + const unsigned y = get_level_draw_offset(level); + const unsigned w = tex_width >> level; + const unsigned h = tex_height >> level; + float *horiz_expected = calloc(w * h, 3 * sizeof(float)); + float *vert_expected = calloc(w * h, 3 * sizeof(float)); + bool pass = true; + int i, j; + + for (i = 0; i < h; i++) { + for (j = 0; j < w; j++) { + horiz_expected[(i * w + j) * 3] = (float)j / w; + vert_expected[(i * w + j) * 3] = (float)i / h; + } + } + + glUniform1i(loc_level, level); + glUniform1i(loc_width, w); + glUniform1i(loc_height, h); + + glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_BASE_LEVEL, level); + + glUniform1i(loc_layer, 0); + glViewport(0, y, w, h); + piglit_draw_rect(-1, -1, 2, 2); + if (!piglit_probe_image_rgb(0, y, w, h, horiz_expected)) { + printf(" FAIL: (level %u, layer 0).\n", level); + pass = false; + } + + glUniform1i(loc_layer, 1); + glViewport(MAX_TEX_BASE_WIDTH + BORDER_WIDTH, y, w, h); + piglit_draw_rect(-1, -1, 2, 2); + if (!piglit_probe_image_rgb(MAX_TEX_BASE_WIDTH + BORDER_WIDTH, y, + w, h, vert_expected)) { + printf(" FAIL: (level %u, layer 1).\n", level); + pass = false; + } + + free(horiz_expected); + free(vert_expected); + + return pass; +} + +enum piglit_result +piglit_display(void) +{ + unsigned i; + bool pass = true; + + glClearColor(0.0, 0.0, 1.0, 1.0); + glClear(GL_COLOR_BUFFER_BIT); + + for (i = 0; i < num_levels; ++i) + pass = draw_level_and_probe(i) && pass; + + piglit_present_results(); + + return pass ? PIGLIT_PASS : PIGLIT_FAIL; +} + +static void +setup_texture(unsigned w, unsigned h) +{ + GLuint tex = piglit_depth_texture(GL_TEXTURE_2D_ARRAY, + GL_DEPTH24_STENCIL8, + w, h, 2, GL_TRUE, + DEPTH_GRAD_X, + DEPTH_GRAD_EVEN_LAYER_X_ODD_Y); + if (!piglit_check_gl_error(GL_NO_ERROR)) + piglit_report_result(PIGLIT_FAIL); + + glBindTexture(GL_TEXTURE_2D_ARRAY, tex); + glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_DEPTH_STENCIL_TEXTURE_MODE, + GL_STENCIL_INDEX); +} + +static void +setup_shader(const char *tex_func) +{ + char *fs; + int loc; + GLint prog; + + const char *vs = + "#version 130\n" + "uniform int layer;\n" + "out vec3 texcoords;\n" + "void main()\n" + "{\n" + " gl_Position = gl_Vertex;\n" + " texcoords[0] = (gl_Vertex.x + 1.0) / 2.0;\n" + " texcoords[1] = (gl_Vertex.y + 1.0) / 2.0;\n" + " texcoords[2] = float(layer);\n" + "}\n"; + + const char *fs_tmpl = + "#version 130\n" + "#extension GL_EXT_texture_array : enable\n" + "in vec3 texcoords;\n" + "ivec3 texelcoords;\n" + "uniform int level;\n" + "uniform int width;\n" + "uniform int height;\n" + "uniform usampler2DArray tex;\n" + "void main()\n" + "{\n" + " texelcoords[0] = int(texcoords[0] * width);\n" + " texelcoords[1] = int(texcoords[1] * height);\n" + " texelcoords[2] = int(texcoords[2]);\n" + " uint stencil = %s.x;\n" + " gl_FragColor = vec4(float(stencil) / 255.0, 0, 0, 1);\n" + "}\n"; + + asprintf(&fs, fs_tmpl, tex_func); + prog = piglit_build_simple_program(vs, fs); + free(fs); + + loc = glGetUniformLocation(prog, "tex"); + loc_level = glGetUniformLocation(prog, "level"); + loc_layer = glGetUniformLocation(prog, "layer"); + loc_width = glGetUniformLocation(prog, "width"); + loc_height = glGetUniformLocation(prog, "height"); + + glUseProgram(prog); + glUniform1i(loc, 0); +} + +void +parse_args(int argc, char **argv, + unsigned *w, unsigned *h, unsigned *n, const char **f) +{ + if (argc != 5) { + printf("Usage: %s <width> <height> <num_levels> <tex_func>\n" + " where <tex_func> is a glsl texture function:\n" + " texture\n" + " texelFetch\n", + argv[0]); + piglit_report_result(PIGLIT_FAIL); + } + + *w = strtoul(argv[1], NULL, 0); + if (!*w || *w > MAX_TEX_BASE_WIDTH) { + printf("invalid width=%u [1,%u]\n", *w, MAX_TEX_BASE_WIDTH); + piglit_report_result(PIGLIT_FAIL); + } + + *h = strtoul(argv[2], NULL, 0); + if (!*h || *h > MAX_TEX_BASE_HEIGHT) { + printf("invalid height=%u [1,%u]\n", *h, MAX_TEX_BASE_HEIGHT); + piglit_report_result(PIGLIT_FAIL); + } + + *n = strtoul(argv[3], NULL, 0); + if (!*n || *n > MAX_NUM_LEVELS) { + printf("invalid width=%u [1,%u]\n", *n, MAX_NUM_LEVELS); + piglit_report_result(PIGLIT_FAIL); + } + + *f = NULL; + if (strcmp(argv[4], "texture") == 0) + *f = "texture(tex, texcoords)"; + + if (strcmp(argv[4], "texelFetch") == 0) + *f = "texelFetch(tex, texelcoords, 0)"; + + if (!*f) { + printf("%s is not supported\n", argv[4]); + piglit_report_result(PIGLIT_FAIL); + } +} + +void +piglit_init(int argc, char **argv) +{ + const char *tex_func; + + piglit_require_extension("GL_ARB_stencil_texturing"); + piglit_require_extension("GL_EXT_texture_array"); + piglit_require_GLSL_version(130); /* for usampler2D */ + + parse_args(argc, argv, + &tex_width, &tex_height, &num_levels, &tex_func); + + setup_texture(tex_width, tex_height); + setup_shader(tex_func); +} |