void test_uniform_int(Generator & gen)
{
typedef boost::uniform_int<int> int_gen;
// large range => small range (modulo case)
typedef boost::variate_generator<Generator&, int_gen> level_one;
level_one uint12(gen, int_gen(1,2));
BOOST_CHECK((uint12.distribution().min)() == 1);
BOOST_CHECK((uint12.distribution().max)() == 2);
check_uniform_int(uint12, 100000);
level_one uint16(gen, int_gen(1,6));
check_uniform_int(uint16, 100000);
// test chaining to get all cases in operator()
// identity map
typedef boost::variate_generator<level_one&, int_gen> level_two;
level_two uint01(uint12, int_gen(0, 1));
check_uniform_int(uint01, 100000);
// small range => larger range
level_two uint05(uint12, int_gen(-3, 2));
check_uniform_int(uint05, 100000);
// small range => larger range
level_two uint099(uint12, int_gen(0, 99));
check_uniform_int(uint099, 100000);
// larger => small range, rejection case
typedef boost::variate_generator<level_two&, int_gen> level_three;
level_three uint1_4(uint05, int_gen(1, 4));
check_uniform_int(uint1_4, 100000);
typedef boost::uniform_int<boost::uint8_t> int8_gen;
typedef boost::variate_generator<Generator&, int8_gen> gen8_t;
gen8_t gen8_03(gen, int8_gen(0, 3));
// use the full range of the type, where the destination
// range is a power of the source range
typedef boost::variate_generator<gen8_t, int8_gen> uniform_uint8;
uniform_uint8 uint8_0255(gen8_03, int8_gen(0, 255));
check_uniform_int(uint8_0255, 100000);
// use the full range, but a generator whose range is not
// a root of the destination range.
gen8_t gen8_02(gen, int8_gen(0, 2));
uniform_uint8 uint8_0255_2(gen8_02, int8_gen(0, 255));
check_uniform_int(uint8_0255_2, 100000);
// expand the range to a larger type.
typedef boost::variate_generator<gen8_t, int_gen> uniform_uint_from8;
uniform_uint_from8 uint0300(gen8_03, int_gen(0, 300));
check_uniform_int(uint0300, 100000);
}
/**
* Test binding image uniforms to image units for a simple shader
* program.
*/
static bool
run_test_uniform(void)
{
const struct grid_info grid =
grid_info(GL_FRAGMENT_SHADER, GL_RGBA32F, W, H);
GLuint prog = generate_program(
grid, GL_FRAGMENT_SHADER,
concat(image_hunk(image_info_for_grid(grid), ""),
hunk("uniform IMAGE_T imgs[2];\n"
"\n"
"GRID_T op(ivec2 idx, GRID_T x) {\n"
" imageStore(imgs[0], IMAGE_ADDR(idx), x);\n"
" imageStore(imgs[1], IMAGE_ADDR(idx), x);\n"
" return x;\n"
"}\n"), NULL));
const int loc = glGetUniformLocation(prog, "imgs");
bool ret = prog && check_uniform_int(prog, loc, 0) &&
check_uniform_int(prog, loc + 1, 0);
int v[2];
glUseProgram(prog);
/*
* Image uniforms are bound to image units using
* glUniform1i{v}.
*/
glUniform1i(loc, 3);
ret &= check_uniform_int(prog, loc, 3) &&
check_uniform_int(prog, loc + 1, 0);
glUniform1i(loc + 1, 3);
ret &= check_uniform_int(prog, loc, 3) &&
check_uniform_int(prog, loc + 1, 3);
v[0] = 4;
v[1] = 5;
glUniform1iv(loc, 2, v);
ret &= check_uniform_int(prog, loc, 4) &&
check_uniform_int(prog, loc + 1, 5);
/*
* GL_INVALID_VALUE is generated if the value specified is
* greater than or equal to the value of GL_MAX_IMAGE_UNITS.
*/
glUniform1i(loc, max_image_units());
ret &= piglit_check_gl_error(GL_INVALID_VALUE);
v[0] = 3;
v[1] = max_image_units() + 1;
glUniform1iv(loc, 2, v);
ret &= piglit_check_gl_error(GL_INVALID_VALUE);
/*
* GL_INVALID_VALUE is generated if the value specified is
* less than zero.
*/
glUniform1i(loc, -1);
ret &= piglit_check_gl_error(GL_INVALID_VALUE);
v[0] = 3;
v[1] = -4;
glUniform1iv(loc, 2, v);
ret &= piglit_check_gl_error(GL_INVALID_VALUE);
/*
* GL_INVALID_OPERATION is generated by Uniform* functions
* other than Uniform1i{v}.
*/
CHECK_INVAL_2(glUniform, 1f, 1ui, (loc, 0), ret);
CHECK_INVAL_3(glUniform, 2i, 2f, 2ui, (loc, 0, 0), ret);
CHECK_INVAL_3(glUniform, 3i, 3f, 3ui, (loc, 0, 0, 0), ret);
CHECK_INVAL_3(glUniform, 4i, 4f, 4ui, (loc, 0, 0, 0, 0), ret);
CHECK_INVAL_2(glUniform, 1fv, 1uiv, (loc, 1, (void *)v), ret);
CHECK_INVAL_3(glUniform, 2iv, 2fv, 2uiv, (loc, 1, (void *)v), ret);
CHECK_INVAL_3(glUniform, 3iv, 3fv, 3uiv, (loc, 1, (void *)v), ret);
CHECK_INVAL_3(glUniform, 4iv, 4fv, 4uiv, (loc, 1, (void *)v), ret);
CHECK_INVAL_3(glUniformMatrix, 2fv, 3fv, 4fv,
(loc, 1, GL_FALSE, (float *)v), ret);
CHECK_INVAL_3(glUniformMatrix, 2x3fv, 3x2fv, 2x4fv,
(loc, 1, GL_FALSE, (float *)v), ret);
CHECK_INVAL_3(glUniformMatrix, 4x2fv, 3x4fv, 4x3fv,
(loc, 1, GL_FALSE, (float *)v), ret);
if (piglit_is_extension_supported("GL_ARB_gpu_shader_fp64")) {
CHECK_INVAL_1(glUniform, 1d, (loc, 0), ret);
CHECK_INVAL_1(glUniform, 2d, (loc, 0, 0), ret);
CHECK_INVAL_1(glUniform, 3d, (loc, 0, 0, 0), ret);
CHECK_INVAL_1(glUniform, 4d, (loc, 0, 0, 0, 0), ret);
CHECK_INVAL_2(glUniform, 1dv, 2dv, (loc, 1, (double *)v), ret);
CHECK_INVAL_2(glUniform, 3dv, 4dv, (loc, 1, (double *)v), ret);
CHECK_INVAL_3(glUniformMatrix, 2dv, 3dv, 4dv,
(loc, 1, GL_FALSE, (double *)v), ret);
CHECK_INVAL_3(glUniformMatrix, 2x3dv, 3x2dv, 2x4dv,
(loc, 1, GL_FALSE, (double *)v), ret);
CHECK_INVAL_3(glUniformMatrix, 4x2dv, 3x4dv, 4x3dv,
(loc, 1, GL_FALSE, (double *)v), ret);
}
glDeleteProgram(prog);
return ret;
}