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/*
* Copyright © 2009 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 vp-max-array.c
* Validate creation of a single maximally sized parameter array.
*
* \author Ian Romanick <ian.d.romanick@intel.com>
*/
#include "piglit-util.h"
#include "piglit-framework.h"
int piglit_window_mode = GLUT_RGB;
int piglit_width = 100;
int piglit_height = 100;
static const char template_header[] =
"!!ARBvp1.0\n"
"OPTION ARB_position_invariant;\n"
"PARAM colors[%d] = {\n"
;
static const char template_footer[] =
" };\n"
"MOV result.color, colors[0];\n"
"END\n"
;
static const char max_native_template_footer[] =
" };\n"
"ADDRESS a;\n"
"ARL a.x, vertex.position.x;\n"
"MOV result.color, colors[a.x];\n"
"END\n"
;
static const char max_local_template[] =
"!!ARBvp1.0\n"
"OPTION ARB_position_invariant;\n"
"PARAM colors[96] = {\n"
" program.%s[0..48],\n"
" program.%s[%d..%d]\n"
" };\n"
"ADDRESS a;\n"
"ARL a.x, vertex.position.x;\n"
"MOV result.color, colors[a.x];\n"
"END\n"
;
enum piglit_result
piglit_display(void)
{
return PIGLIT_PASS;
}
bool
query_and_require_limit(GLenum pname, GLint *param, const char *name,
GLint minimum_maximum)
{
glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, pname, param);
if (*param < minimum_maximum) {
fprintf(stderr, "%s: Expected at least %d, got %d\n",
name, minimum_maximum, *param);
return false;
}
return true;
}
void
piglit_init(int argc, char **argv)
{
GLint max_parameters;
GLint max_native_parameters;
GLint max_local_parameters;
GLint max_env_parameters;
char *shader_source;
bool pass = true;
size_t len;
int offset;
unsigned i;
(void) argc;
(void) argv;
piglit_require_vertex_program();
/* First, query all of the limits.
*/
pass = query_and_require_limit(GL_MAX_PROGRAM_PARAMETERS_ARB,
& max_parameters,
"GL_MAX_PROGRAM_PARAMETERS_ARB",
96)
&& pass;
pass = query_and_require_limit(GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB,
& max_native_parameters,
"GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB",
96)
&& pass;
pass = query_and_require_limit(GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB,
& max_local_parameters,
"GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB",
96)
&& pass;
pass = query_and_require_limit(GL_MAX_PROGRAM_ENV_PARAMETERS_ARB,
& max_env_parameters,
"GL_MAX_PROGRAM_ENV_PARAMETERS_ARB",
96)
&& pass;
if (!pass) {
piglit_report_result(PIGLIT_FAIL);
}
/* Allocate a buffer big enough to hold any program that this test
* might generate.
*/
len = sizeof(template_header)
+ sizeof(template_footer)
+ sizeof(max_native_template_footer)
+ (80 * max_parameters) + 1;
shader_source = malloc(len);
if (shader_source == NULL)
piglit_report_result(PIGLIT_FAIL);
/* Generate a program that uses the full parameter space using an
* array of constants. Since only one parameter is statically used,
* this exercises GL_MAX_PROGRAM_PARAMETERS_ARB and *not*
* GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB.
*/
offset = snprintf(shader_source, len, template_header, max_parameters);
for (i = 0; i < max_parameters; i++) {
int comma = (i < (max_parameters - 1)) ? ',' : ' ';
int used = snprintf(& shader_source[offset],
len - offset,
"\t\t{ %.1f, %.1f, %.1f, %.1f }%c\n",
(float) i,
(float) i + 0.2,
(float) i + 0.4,
(float) i + 0.6,
comma);
offset += used;
}
memcpy(& shader_source[offset], template_footer,
sizeof(template_footer));
(void) piglit_compile_program(GL_VERTEX_PROGRAM_ARB, shader_source);
/* Generate a program that uses the full native parameter space using
* an array of constants. The array is accessed indirectly, so the
* assembler cannot know which elements may be used. As a result, it
* has to upload all of them. This exercises
* GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB.
*/
offset = snprintf(shader_source, len, template_header,
max_native_parameters);
for (i = 0; i < max_native_parameters; i++) {
int comma = (i < (max_native_parameters - 1)) ? ',' : ' ';
int used = snprintf(& shader_source[offset],
len - offset,
"\t\t{ %.1f, %.1f, %.1f, %.1f }%c\n",
(float) i,
(float) i + 0.2,
(float) i + 0.4,
(float) i + 0.6,
comma);
offset += used;
}
memcpy(& shader_source[offset], max_native_template_footer,
sizeof(max_native_template_footer));
(void) piglit_compile_program(GL_VERTEX_PROGRAM_ARB, shader_source);
/* Generate a program that uses as much of the local parameter space
* as possible. This basically tries to hit both ends of the
* program.local array without making assumptions about the relative
* amount of parameter space. We only assume that the
* minimum-maximums of 96 are respected by the GL implementation.
*/
snprintf(shader_source, len, max_local_template,
"local",
"local", max_local_parameters - 47, max_local_parameters - 1);
(void) piglit_compile_program(GL_VERTEX_PROGRAM_ARB, shader_source);
}
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