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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-address-02.c
* Validate address registers with various constant offsets.
*
* Much like vp-address-01, but this test utilizes multiple address registers.
* GL_NV_vertex_program2_option requires at least two address registers. Base
* GL_ARB_vertex_program implementations can also support more than one, but
* only one is required.
*
* \author Ian Romanick <ian.d.romanick@intel.com>
*/
#include "piglit-util-gl.h"
static const GLfloat attrib[] = {
1.0, 1.0,
2.0, 2.0,
0.0, 0.0,
1.0, 0.0,
-1.0, 0.0,
0.0, 1.0,
0.0, -1.0,
2.0, -1.0,
-2.0, -1.0,
2.0, -2.0,
};
#define TEST_ROWS 1
#define TEST_COLS (ARRAY_SIZE(attrib) / 2)
#define BOX_SIZE 32
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_width = (((BOX_SIZE+1)*TEST_COLS)+1);
config.window_height = (((BOX_SIZE+1)*TEST_ROWS)+1);
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
static const char vertex_source_template[] =
"!!ARBvp1.0\n"
"PARAM colors[] = { program.env[0..3] };\n"
"ADDRESS A0, A1;\n"
"\n"
"ARL A0.x, vertex.attrib[1].x;\n"
"ARL A1.x, vertex.attrib[1].y;\n"
"ADD result.color, colors[A0.x %c %u], colors[A1.x %c %u];\n"
PIGLIT_VERTEX_PROGRAM_MVP_TRANSFORM
"END\n"
;
/**
* \name Handles to programs.
*/
/*@{*/
static GLint progs[TEST_COLS];
/*@}*/
enum piglit_result
piglit_display(void)
{
static const GLfloat color[4] = { 0.0, 0.5, 0.0, 0.5 };
static const GLfloat good_color[4] = { 0.0, 1.0, 0.0, 1.0 };
static const GLfloat bad_color[4] = { 1.0, 0.0, 0.0, 1.0 };
enum piglit_result result = PIGLIT_PASS;
unsigned i;
glClear(GL_COLOR_BUFFER_BIT);
glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 0, bad_color);
glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 1, color);
glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 2, bad_color);
glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 3, bad_color);
for (i = 0; i < ARRAY_SIZE(progs); i++) {
const int x = 1 + (i * (BOX_SIZE + 1));
glBindProgramARB(GL_VERTEX_PROGRAM_ARB, progs[i]);
glVertexAttrib2fvARB(1, & attrib[i * 2]);
piglit_draw_rect(x, 1, BOX_SIZE, BOX_SIZE);
if (!piglit_probe_pixel_rgb(x + (BOX_SIZE / 2),
1 + (BOX_SIZE / 2),
good_color)) {
if (! piglit_automatic)
printf("shader %u failed with attributes "
"%.1f, %.1f\n",
i,
attrib[(i * 2) + 0],
attrib[(i * 2) + 1]);
result = PIGLIT_FAIL;
}
}
piglit_present_results();
return result;
}
void
piglit_init(int argc, char **argv)
{
GLint max_address_registers;
unsigned i;
(void) argc;
(void) argv;
piglit_require_vertex_program();
piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
glGetProgramivARB(GL_VERTEX_PROGRAM_ARB,
GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB,
& max_address_registers);
if (max_address_registers == 0) {
/* we have to have at least one address register */
if (! piglit_automatic)
printf("GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB == 0\n");
piglit_report_result(PIGLIT_FAIL);
} else if (max_address_registers == 1) {
if (piglit_is_extension_supported("GL_NV_vertex_program2_option")) {
/* this extension requires two address regs */
if (! piglit_automatic)
printf("GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB "
"== 1\n");
piglit_report_result(PIGLIT_FAIL);
} else {
piglit_report_result(PIGLIT_SKIP);
}
}
for (i = 0; i < ARRAY_SIZE(progs); i++) {
char shader_source[1024];
int offset[2];
char direction[2];
/* We want the constant offset in the instruction plus the
* value read from the attribute to be 1.
*/
offset[0] = 1 - (int) attrib[(2 * i) + 0];
offset[1] = 1 - (int) attrib[(2 * i) + 1];
if (offset[0] < 0) {
direction[0] = '-';
offset[0] = -offset[0];
} else {
direction[0] = '+';
}
if (offset[1] < 0) {
direction[1] = '-';
offset[1] = -offset[1];
} else {
direction[1] = '+';
}
snprintf(shader_source, sizeof(shader_source),
vertex_source_template,
direction[0], offset[0],
direction[1], offset[1]);
progs[i] = piglit_compile_program(GL_VERTEX_PROGRAM_ARB,
shader_source);
}
glEnable(GL_VERTEX_PROGRAM_ARB);
glClearColor(0.5, 0.5, 0.5, 1.0);
}
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