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/* Copyright (c) 2024 Collabora Ltd
* SPDX-License-Identifier: MIT
*/
/**
* \file
* \brief Tests that the driver can cope with a single resource backing the
* UBO and SSBO bindings within a single dispatch.
*/
#include "piglit-util-gl.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_es_version = 31;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
static const char cs_with_store[] =
"#version 310 es\n"
"\n"
"layout(binding = 0) uniform UBO { int src; };\n"
"layout(binding = 1) coherent buffer SSBO { int dst; };\n"
"\n"
"layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;\n"
"\n"
"void main() {\n"
" dst = src + 100;\n"
"};\n";
static GLint prog;
enum piglit_result
piglit_display(void)
{
uint32_t src = 42;
uint32_t dst_expectation = src + 100;
GLuint buffer;
glGenBuffers(1, &buffer);
glBindBuffer(GL_ARRAY_BUFFER, buffer);
glBufferData(GL_ARRAY_BUFFER, 512, NULL, GL_STATIC_DRAW);
/* UBO part: src = 1 */
glBufferSubData(GL_ARRAY_BUFFER, 0, 4, &src);
/* SSBO part: dst = 0 */
glBufferSubData(GL_ARRAY_BUFFER, 256, 4, NULL);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glUseProgram(prog);
glBindBufferRange(GL_UNIFORM_BUFFER, 0, buffer, 0, 256);
glBindBufferRange(GL_SHADER_STORAGE_BUFFER, 1, buffer, 256, 256);
glDispatchCompute(1, 1, 1);
uint32_t *dst = glMapBufferRange(GL_SHADER_STORAGE_BUFFER, 256, 4, GL_MAP_READ_BIT);
int pass = *dst == dst_expectation;
glDeleteBuffers(1, &buffer);
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
void
piglit_init(int argc, char **argv)
{
prog = piglit_build_compute_program(cs_with_store);
}
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