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Diffstat (limited to 'tests/spec/amd_gpu_shader_half_float/half-float-explicit-offset-bufferstorage.c')
| -rw-r--r-- | tests/spec/amd_gpu_shader_half_float/half-float-explicit-offset-bufferstorage.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/tests/spec/amd_gpu_shader_half_float/half-float-explicit-offset-bufferstorage.c b/tests/spec/amd_gpu_shader_half_float/half-float-explicit-offset-bufferstorage.c new file mode 100644 index 000000000..3b8aedcc1 --- /dev/null +++ b/tests/spec/amd_gpu_shader_half_float/half-float-explicit-offset-bufferstorage.c @@ -0,0 +1,260 @@ +/* + * Copyright (c) 2014 VMware, Inc. + * + * 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 half-float-explicit-offset-bufferstorage.c + * + * This is a copy of the arb_uniform_buffer_object bufferstorage test updated + * to make use of explicit offsets and half floats. + * + * Test rendering with UBOs. We draw four squares with different + * positions, sizes, rotations and colors where those parameters come + * from UBOs. Same as rendering.c, except that the UBOs are + * persistently mapped. + */ + +#include "piglit-util-gl.h" + +#include "half_float_util.h" + +PIGLIT_GL_TEST_CONFIG_BEGIN + + config.supports_gl_core_version = 40; + config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA; + +PIGLIT_GL_TEST_CONFIG_END + +static const char vert_shader_text[] = + "#version 400\n" + "#extension GL_ARB_enhanced_layouts : require\n" + "#extension GL_AMD_gpu_shader_half_float : require\n" + "\n" + "in vec4 piglit_vertex;\n" + "\n" + "layout(std140) uniform;\n" + "layout(std140) uniform ub_pos_size {\n" + " layout(offset = 0) float16_t size;\n" + " layout(offset = 2) float16_t pos1;\n" + " layout(offset = 6) float16_t pos2;\n" + "};\n" + "uniform ub_rot {float rotation; };\n" + "\n" + "void main()\n" + "{\n" + " mat2 m;\n" + " m[0][0] = m[1][1] = cos(rotation); \n" + " m[0][1] = sin(rotation); \n" + " m[1][0] = -m[0][1]; \n" + " gl_Position.xy = m * piglit_vertex.xy * vec2(size) + vec2(pos1, pos2);\n" + " gl_Position.zw = vec2(0, 1);\n" + "}\n"; + +static const char frag_shader_text[] = + "#version 400\n" + "#extension GL_ARB_enhanced_layouts : require\n" + "#extension GL_AMD_gpu_shader_half_float : require\n" + "\n" + "layout(std140) uniform;\n" + "layout(std140) uniform ub_color {\n" + " layout(offset = 0) vec4 color;\n" + " layout(offset = 22) float16_t color_scale;\n" + "} named_ub;\n" + "\n" + "void main()\n" + "{\n" + " gl_FragColor = named_ub.color * float(named_ub.color_scale);\n" + "}\n"; + +#define NUM_SQUARES 4 +#define NUM_UBOS 3 + +/* Square positions and sizes */ +static const float pos_size[NUM_SQUARES][3] = { + { 0.1, -0.5, -0.5 }, + { 0.2, 0.5, -0.5 }, + { 0.3, -0.5, 0.5 }, + { 0.4, 0.5, 0.5 } +}; + +/* Square color and color_scales */ +static const float color[NUM_SQUARES][4] = { + { 2.0, 0.0, 0.0, 1.0 }, + { 0.0, 4.0, 0.0, 1.0 }, + { 0.0, 0.0, 5.0, 1.0 }, + { 0.2, 0.2, 0.2, 0.2 } +}; + +static const float color_scale[NUM_SQUARES] = { + 0.50, + 0.25, + 0.20, + 5.00 +}; + +/* Square rotations */ +static const float rotation[NUM_SQUARES] = { + 0.0, + 0.1, + 0.2, + 0.3 +}; + +static GLuint prog; +static GLuint buffers[NUM_UBOS]; +static void *ubos[NUM_UBOS]; + +static void +setup_ubos(void) +{ + static const char *names[NUM_UBOS] = { + "ub_pos_size", + "ub_color", + "ub_rot" + }; + int i; + + glGenBuffers(NUM_UBOS, buffers); + + for (i = 0; i < NUM_UBOS; i++) { + GLint index, size; + + /* query UBO index */ + index = glGetUniformBlockIndex(prog, names[i]); + + /* query UBO size */ + glGetActiveUniformBlockiv(prog, index, + GL_UNIFORM_BLOCK_DATA_SIZE, &size); + + printf("UBO %s: index = %d, size = %d\n", + names[i], index, size); + + /* Allocate UBO */ + glBindBuffer(GL_UNIFORM_BUFFER, buffers[i]); + glBufferStorage(GL_UNIFORM_BUFFER, size, NULL, + GL_MAP_WRITE_BIT | + GL_MAP_PERSISTENT_BIT | + GL_MAP_COHERENT_BIT | + GL_DYNAMIC_STORAGE_BIT); + + piglit_check_gl_error(GL_NO_ERROR); + + ubos[i] = glMapBufferRange(GL_UNIFORM_BUFFER, 0, size, + GL_MAP_WRITE_BIT | + GL_MAP_PERSISTENT_BIT | + GL_MAP_COHERENT_BIT); + + piglit_check_gl_error(GL_NO_ERROR); + + if (!ubos[i]) + piglit_report_result(PIGLIT_FAIL); + + /* Attach UBO */ + glBindBufferBase(GL_UNIFORM_BUFFER, i, buffers[i]); + glUniformBlockBinding(prog, index, i); + + if (!piglit_check_gl_error(GL_NO_ERROR)) + piglit_report_result(PIGLIT_FAIL); + } +} + +void +piglit_init(int argc, char **argv) +{ + piglit_require_extension("GL_ARB_enhanced_layouts"); + piglit_require_extension("GL_AMD_gpu_shader_half_float"); + + prog = piglit_build_simple_program(vert_shader_text, frag_shader_text); + assert(prog); + glUseProgram(prog); + + setup_ubos(); + + glClearColor(0.2, 0.2, 0.2, 0.2); +} + +static bool +probe(int x, int y, int color_index) +{ + float expected[4]; + + /* mul color by color_scale */ + expected[0] = color[color_index][0] * color_scale[color_index]; + expected[1] = color[color_index][1] * color_scale[color_index]; + expected[2] = color[color_index][2] * color_scale[color_index]; + expected[3] = color[color_index][3] * color_scale[color_index]; + + return piglit_probe_pixel_rgba(x, y, expected); +} + + +enum piglit_result +piglit_display(void) +{ + GLsync fence; + bool pass = true; + int x0 = piglit_width / 4; + int x1 = piglit_width * 3 / 4; + int y0 = piglit_height / 4; + int y1 = piglit_height * 3 / 4; + int i; + + glViewport(0, 0, piglit_width, piglit_height); + + glClear(GL_COLOR_BUFFER_BIT); + + for (i = 0; i < NUM_SQUARES; i++) { + /* Wait for any previous rendering to finish before + * updating the UBOs + */ + fence = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0); + glClientWaitSync(fence, GL_SYNC_FLUSH_COMMANDS_BIT, + GL_TIMEOUT_IGNORED); + + /* Load UBO data */ + uint16_t half_float_val = _mesa_float_to_half_slow(pos_size[i][0]); + memcpy(ubos[0], &half_float_val, 2); + + half_float_val = _mesa_float_to_half_slow(pos_size[i][1]); + memcpy((uint8_t *)ubos[0] + 2, &half_float_val, 2); + + half_float_val = _mesa_float_to_half_slow(pos_size[i][2]); + memcpy((uint8_t *)ubos[0] + 6, &half_float_val, 2); + + memcpy(ubos[1], color[i], sizeof(color[0])); + + half_float_val = _mesa_float_to_half_slow(color_scale[i]); + memcpy(((uint8_t *)ubos[1]) + 22, &half_float_val, 2); + + memcpy(ubos[2], &rotation[i], sizeof(rotation[0])); + + piglit_draw_rect(-1, -1, 2, 2); + } + + pass = probe(x0, y0, 0) && pass; + pass = probe(x1, y0, 1) && pass; + pass = probe(x0, y1, 2) && pass; + pass = probe(x1, y1, 3) && pass; + + piglit_present_results(); + + return pass ? PIGLIT_PASS : PIGLIT_FAIL; +} |