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/*
* Copyright (c) 2013 Bruce Merry
*
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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
* NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COYPRIGTH
* HOLDERS AND/OR THEIR SUPPLIERS 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.
*/
#include "piglit-util-gl.h"
typedef struct {
GLenum format;
const char *extension;
int expected[4];
int buffer; /* Draw buffer to attach the renderbuffer to */
} format_info;
static const format_info formats[] = {
{ GL_RGBA8, NULL, { 0, 0, 0, 0 } },
{ GL_R8I, "GL_ARB_texture_rg", { 1, 0, 0, 0 } },
{ GL_RG8I, "GL_ARB_texture_rg", { 1, 1, 0, 0 } },
{ GL_R8_SNORM, "GL_EXT_texture_snorm", { 1, 0, 0, 0 } },
{ GL_LUMINANCE8_SNORM, "GL_EXT_texture_snorm", { 1, 1, 1, 0 } },
{ GL_RGBA8UI_EXT, "GL_EXT_texture_integer", { 0, 0, 0, 0 } },
{ GL_RGBA16F_ARB, "GL_ARB_texture_float", { 1, 1, 1, 1 } },
{ GL_LUMINANCE16F_ARB, "GL_ARB_texture_float", { 1, 1, 1, 0 } },
{ GL_RGB9_E5_EXT, "GL_EXT_texture_shared_exponent", { 0, 0, 0, 0 } },
{ GL_R11F_G11F_B10F_EXT, "GL_EXT_packed_float", { 0, 0, 0, 0 } },
{ GL_RGBA16F_ARB, "GL_ARB_texture_float", { 0, 0, 0, 0 }, 1 }
};
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_visual = PIGLIT_GL_VISUAL_RGB;
config.khr_no_error_support = PIGLIT_NO_ERRORS;
PIGLIT_GL_TEST_CONFIG_END
enum piglit_result
piglit_display(void)
{
/* Should never be reached */
return PIGLIT_FAIL;
}
/* Queries GL_RGBA_SIGNED_COMPONENTS_EXT and compares to expected.
* If they do not match, prints an error. Returns true on match.
*/
static bool check_rgba_signed(const int *expected)
{
int i;
/* Start with nonsense values, to ensure they are written */
GLint actual[4] = {2, 2, 2, 2};
glGetIntegerv(GL_RGBA_SIGNED_COMPONENTS_EXT, actual);
if (!piglit_check_gl_error(GL_NO_ERROR)) {
return false;
}
for (i = 0; i < 4; i++) {
if (expected[i] != actual[i]) {
printf("Expected: (%d, %d, %d, %d)\n",
expected[0],
expected[1],
expected[2],
expected[3]);
printf("Actual: (%d, %d, %d, %d)\n",
actual[0],
actual[1],
actual[2],
actual[3]);
return false;
}
}
return true;
}
static bool test_format(const format_info *f)
{
GLuint rbo = 0;
bool pass = true;
if (f->extension != NULL
&& !piglit_is_extension_supported(f->extension)) {
printf("Skipping %s since %s not present\n",
piglit_get_gl_enum_name(f->format), f->extension);
return pass;
}
glGenRenderbuffers(1, &rbo);
glBindRenderbuffer(GL_RENDERBUFFER, rbo);
glRenderbufferStorage(
GL_RENDERBUFFER,
f->format, 16, 16);
glFramebufferRenderbuffer(
GL_DRAW_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0 + f->buffer,
GL_RENDERBUFFER, rbo);
if (glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER)
!= GL_FRAMEBUFFER_COMPLETE) {
printf("Skipping %s: framebuffer not complete\n",
piglit_get_gl_enum_name(f->format));
} else {
printf("Testing %s\n", piglit_get_gl_enum_name(f->format));
if (!check_rgba_signed(f->expected))
pass = false;
}
glFramebufferRenderbuffer(
GL_DRAW_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0 + f->buffer,
GL_RENDERBUFFER, 0);
glDeleteRenderbuffers(1, &rbo);
return pass;
}
void
piglit_init(int argc, char **argv)
{
int expected[4] = {0, 0, 0, 0};
bool pass = true;
unsigned int i;
const GLenum buffers[2] = {GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1};
piglit_require_extension("GL_EXT_packed_float");
/* With a normal window, all channels should be unsigned */
printf("Testing window\n");
if (!check_rgba_signed(expected))
pass = false;
if (piglit_is_extension_supported("GL_ARB_framebuffer_object")) {
GLuint fbo = 0;
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
glDrawBuffers(2, buffers);
/* Test a variety of FBO formats */
for (i = 0; i < ARRAY_SIZE(formats); i++) {
pass = test_format(formats + i) && pass;
}
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glDeleteFramebuffers(1, &fbo);
}
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
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