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/*
* Copyright © 2013 LunarG, 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.
*
* Author: Jon Ashburn <jon@lunarg.com>
*/
/**
* Tests texture views with data format changes. 1D textures only.
* Uses multiple simultaneous views with different lifetimes and
* check results via glGetTexImage().
*/
#include "piglit-util-gl.h"
#include "common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 15;
config.supports_gl_core_version = 31;
config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
/* Texture formats. The format_list variable has these fields: */
struct format_desc {
const char *name;
GLenum internalfmt;
GLenum storagefmt;
GLenum imagefmt;
GLenum imagetype;
GLenum getfmt;
GLenum gettype;
int red, green, blue, alpha;
};
#define FORMAT(f) #f, f
static const struct format_desc format_list[] = {
{FORMAT(GL_RGBA8UI), GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE,
GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, 8, 8, 8, 8},
{FORMAT(GL_RGBA8I), GL_RGBA8I, GL_RGBA, GL_UNSIGNED_BYTE,
GL_RGBA_INTEGER, GL_BYTE, 8, 8, 8, 8},
{FORMAT(GL_RGB16F), GL_RGB16F, GL_RGB, GL_UNSIGNED_BYTE, GL_RGB,
GL_HALF_FLOAT, 16, 16, 16, 0},
{FORMAT(GL_RGB16I), GL_RGB16, GL_RGB, GL_UNSIGNED_BYTE,
GL_RGB_INTEGER, GL_SHORT, 16, 16, 16, 0},
{FORMAT(GL_R16UI), GL_R16, GL_RED, GL_UNSIGNED_BYTE,
GL_RED_INTEGER, GL_UNSIGNED_SHORT, 16, 0, 0, 0},
{FORMAT(GL_R16F), GL_R16, GL_RED, GL_UNSIGNED_BYTE,
GL_RED, GL_HALF_FLOAT, 16, 0, 0, 0},
{FORMAT(GL_RGBA16UI), GL_RGBA16, GL_RGBA, GL_UNSIGNED_BYTE,
GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, 16, 16, 16, 16},
{FORMAT(GL_RGBA16F), GL_RGBA16, GL_RGBA, GL_UNSIGNED_BYTE,
GL_RGBA, GL_HALF_FLOAT, 16, 16, 16, 16},
};
#undef FORMAT
static bool
buffers_equal(const unsigned char * buf0, const unsigned char *buf1, GLint w)
{
int i;
for (i = 0; i < w; i++) {
if (buf0[i] != buf1[i]) {
printf("mismatched texels at index (%d)\n", i);
printf(" Buffer0: %u\n", buf0[i]);
printf(" Buffer1: %u\n", buf1[i]);
return true;
}
}
return false;
}
static bool
test_format_lifetime(const struct format_desc desc0,
const struct format_desc desc1)
{
GLuint tex, viewTex[3];
GLint width = 32, w, levels = 6;
GLint l;
int bytes;
unsigned char *buffer0, *buffer1;
bool pass = true;
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_1D, tex);
glTexStorage1D(GL_TEXTURE_1D, levels, desc0.storagefmt, width);
glGenTextures(3, viewTex);
glTextureView(viewTex[0], GL_TEXTURE_1D, tex, desc0.internalfmt, 0,
levels, 0, 1);
glTextureView(viewTex[1], GL_TEXTURE_1D, viewTex[0],
desc1.internalfmt, 0, levels, 0, 1);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
/* load each mipmap with a different color texture */
w = width;
bytes = (desc0.red + desc0.green + desc0.blue + desc0.alpha) / 8;
for (l = 0; l < levels; l++) {
GLubyte *buf = create_solid_image(width, 1, 1, bytes, l);
if (buf != NULL) {
glTexSubImage1D(GL_TEXTURE_1D, l, 0, w, desc0.imagefmt,
desc0.imagetype, buf);
free(buf);
} else {
piglit_report_result(PIGLIT_FAIL);
assert(!"create_solid_image() failed\n");
}
if (w > 1)
w /= 2;
}
#if 0 /* debug */
printf("fmt0=%s, fmt1=%s, strgfmt0=%s, gettype0=%s\n",
piglit_get_gl_enum_name(desc0.internalfmt),
piglit_get_gl_enum_name(desc1.internalfmt),
piglit_get_gl_enum_name(desc0.storagefmt),
piglit_get_gl_enum_name(desc0.gettype));
printf("bytes=%d, width=%d, viewTex[0]=%d, [1]=%d, [2]=%d\n",bytes,
width, viewTex[0], viewTex[1], viewTex[2]);
#endif
glDeleteTextures(1, &tex);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
/* compare view0 all level texels bytes to view1 texels bytes */
buffer0 = malloc(width * bytes);
buffer1 = malloc(width * bytes);
w = width;
for (l = 0; l < levels; l++) {
glBindTexture(GL_TEXTURE_1D, viewTex[0]);
glGetTexImage(GL_TEXTURE_1D, l, desc0.getfmt, desc0.gettype,
buffer0);
glBindTexture(GL_TEXTURE_1D, viewTex[1]);
glGetTexImage(GL_TEXTURE_1D, l, desc1.getfmt, desc1.gettype,
buffer1);
if (buffers_equal(buffer0, buffer1, w)) {
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
printf("level %d texel mismatch view0 and view1, width=%d\n",
l, w);
printf("internal format0 %s, internal format1 %s\n",
piglit_get_gl_enum_name(desc0.internalfmt),
piglit_get_gl_enum_name(desc1.internalfmt));
pass = false;
}
if (w > 1)
w /= 2;
}
/* compare view1 base level texels to view2 after view0 and view1
deleted */
glBindTexture(GL_TEXTURE_1D, viewTex[1]);
glGetTexImage(GL_TEXTURE_1D, 0, desc1.getfmt, desc1.gettype, buffer1);
glTextureView(viewTex[2], GL_TEXTURE_1D, viewTex[0],
desc0.internalfmt, 0, 1, 0, 1);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
glDeleteTextures(2, viewTex);
glBindTexture(GL_TEXTURE_1D, viewTex[2]);
glGetTexImage(GL_TEXTURE_1D, 0, desc0.getfmt, desc0.gettype, buffer0);
if (buffers_equal(buffer0, buffer1, width)) {
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
printf("Mismatched texels view1 and view2\n");
printf("internal format0 %s, internal format1 %s\n",
piglit_get_gl_enum_name(desc0.internalfmt),
piglit_get_gl_enum_name(desc1.internalfmt));
pass = false;
}
free(buffer0);
free(buffer1);
glDeleteTextures(1, &viewTex[2]);
return pass;
}
enum piglit_result
piglit_display(void)
{
return PIGLIT_FAIL;
}
#define X(f, desc) \
do { \
const bool subtest_pass = (f); \
piglit_report_subtest_result(subtest_pass \
? PIGLIT_PASS : PIGLIT_FAIL, \
(desc)); \
pass = pass && subtest_pass; \
} while (0)
void
piglit_init(int argc, char **argv)
{
bool pass = true;
piglit_require_extension("GL_ARB_texture_storage");
piglit_require_extension("GL_ARB_texture_view");
X(test_format_lifetime(format_list[4], format_list[5]),
"view compare 16 bit formats");
X(test_format_lifetime(format_list[0], format_list[1]),
"view compare 32 bit formats");
X(test_format_lifetime(format_list[2], format_list[3]),
"view compare 48 bit formats");
X(test_format_lifetime(format_list[6], format_list[7]),
"view compare 64 bit formats");
#undef X
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
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