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/* Copyright © 2011 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 clearbuffer-common.c
* Common code and data for the basic glClearBuffer tests
*/
#include "piglit-util-gl-common.h"
const float default_color[4] = { 0.2, 0.4, 0.6, 1.0 };
const float default_depth = 0.2;
const int default_stencil = 0x7a;
PIGLIT_GL_TEST_MAIN(
100 /*window_width*/,
100 /*window_height*/,
GLUT_RGB | GLUT_DOUBLE)
GLuint
generate_simple_fbo(bool color, bool stencil, bool depth, bool packed)
{
GLuint fb;
GLuint rb[3];
GLenum status;
glGenFramebuffers(1, &fb);
glBindFramebuffer(GL_FRAMEBUFFER, fb);
glGenRenderbuffers(3, rb);
if (color) {
glBindRenderbuffer(GL_RENDERBUFFER, rb[0]);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8,
piglit_width, piglit_height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_RENDERBUFFER,
rb[0]);
} else {
/* If GL_ARB_ES2_compatibility is not supported, the GL
* expects the draw buffer and read buffer be disabled if
* there is no color buffer (to read or draw).
*/
glDrawBuffer(GL_NONE);
glReadBuffer(GL_NONE);
}
if (stencil) {
const GLenum format = (packed)
? GL_DEPTH24_STENCIL8
: GL_STENCIL_INDEX8;
const GLenum attachment = (packed)
? GL_DEPTH_STENCIL_ATTACHMENT
: GL_STENCIL_ATTACHMENT;
glBindRenderbuffer(GL_RENDERBUFFER, rb[1]);
glRenderbufferStorage(GL_RENDERBUFFER, format,
piglit_width, piglit_height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER,
attachment,
GL_RENDERBUFFER,
rb[1]);
}
if (!packed && depth) {
glBindRenderbuffer(GL_RENDERBUFFER, rb[2]);
glRenderbufferStorage(GL_RENDERBUFFER,
GL_DEPTH_COMPONENT24,
piglit_width, piglit_height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER,
GL_DEPTH_ATTACHMENT,
GL_RENDERBUFFER,
rb[2]);
}
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
/* All of the possible combinations that we can generate are required
* to be supported by all OpenGL 3.0 implementations, with one
* exception. As far as I can tell, implementations are not required
* to support separate depth and stencil. That one option is handled
* specially.
*/
status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status != GL_FRAMEBUFFER_COMPLETE
&& !(status == GL_FRAMEBUFFER_UNSUPPORTED && stencil && !packed)) {
fprintf(stderr,
"Framebuffer %s color, %s stencil (%s) was not "
"complete: 0x%04x\n",
color ? "with" : "without",
stencil ? "with" : "without",
packed ? "packed" : "separate",
status);
piglit_report_result(PIGLIT_FAIL);
}
if (status == GL_FRAMEBUFFER_UNSUPPORTED) {
glDeleteRenderbuffers(3, rb);
glDeleteFramebuffers(1, &fb);
return 0;
}
glClearColor(default_color[0],
default_color[1],
default_color[2],
default_color[3]);
glClearDepth(default_depth);
glClearStencil(default_stencil);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT
| GL_STENCIL_BUFFER_BIT);
glFinish();
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
return fb;
}
bool
simple_probe(bool color, const float *color_value,
bool stencil, int stencil_value,
bool depth, float depth_value)
{
bool pass = true;
if (color) {
if (!piglit_probe_rect_rgba(0, 0,
piglit_width, piglit_height,
color_value)) {
fprintf(stderr, "Bad color value.\n");
pass = false;
}
}
if (stencil) {
if (!piglit_probe_rect_stencil(0, 0,
piglit_width, piglit_height,
stencil_value)) {
fprintf(stderr, "Bad stencil value.\n");
pass = false;
}
}
if (depth) {
if (!piglit_probe_rect_depth(0, 0,
piglit_width, piglit_height,
depth_value)) {
fprintf(stderr, "Bad depth value.\n");
pass = false;
}
}
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
return pass;
}
/* Read pixel color values from float, integer or unsigned integer color
* buffer types
*/
bool
probe_rect_color(int x, int y, int w, int h, GLenum type,
const GLvoid *refcolor)
{
if (type == GL_FLOAT)
return piglit_probe_rect_rgba(x, y,
w, h,
(const float*)refcolor);
else if (type == GL_UNSIGNED_INT)
return piglit_probe_rect_rgba_uint(x, y,
w, h,
(const unsigned int*)
refcolor);
else if (type == GL_INT)
return piglit_probe_rect_rgba_int(x, y,
w, h,
(const int*)refcolor);
else
assert(type == GL_INT ||
type == GL_UNSIGNED_INT ||
type == GL_FLOAT);
return true;
}
enum piglit_result
piglit_display(void)
{
return PIGLIT_FAIL;
}
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