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/*
* Copyright © 2013 Intel Corporation
* Copyright © 2014 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.
*
* Authors:
* Chris Forbes <chrisf@ijw.co.nz>
* Mike Stroyan <mike@lunarg.com>
*
*/
/*
* fbo-mrt-new-bind asserts correct behavior for changing framebuffer binding
* without changing the shaders. That can cause trouble if the new binding
* selects a different shader kernel without updating all resources.
*/
#include "piglit-util-gl.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 21;
config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
GLenum buffers[] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1 };
GLuint fbos[3];
GLint prog0, prog1;
GLuint textures[5];
void
piglit_init(int argc, char **argv)
{
int i;
piglit_require_GLSL_version(130);
glGenTextures(5, textures);
for (i=0; i<4; i++) {
glBindTexture(GL_TEXTURE_2D, textures[i]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
glBindTexture(GL_TEXTURE_2D, textures[4]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH24_STENCIL8, 640, 360, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NULL);
glGenFramebuffers(3, fbos);
glBindFramebuffer(GL_FRAMEBUFFER, fbos[0]);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[0], 0);
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
printf("Framebuffer not complete.\n");
piglit_report_result(PIGLIT_SKIP);
}
glBindFramebuffer(GL_FRAMEBUFFER, fbos[1]);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1], 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, textures[4], 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, textures[4], 0);
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
printf("Framebuffer not complete.\n");
piglit_report_result(PIGLIT_SKIP);
}
glBindFramebuffer(GL_FRAMEBUFFER, fbos[2]);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[2], 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, textures[3], 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, textures[4], 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, textures[4], 0);
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
printf("Framebuffer not complete.\n");
piglit_report_result(PIGLIT_SKIP);
}
glDrawBuffers(2, buffers);
prog0 = piglit_build_simple_program(
"#version 130\n"
"in vec4 pos;\n"
"in vec2 tex_coord;\n"
"void main() {\n"
" gl_Position = pos;\n"
"}\n",
"#version 130\n"
"void main() {\n"
" float blue = float(int(gl_FragCoord.x / 16 + gl_FragCoord.y / 16 + 1) % 2);\n"
" gl_FragData[0] = vec4(0.0, 0.0, blue, 1.0);\n"
"}\n"
);
prog1 = piglit_build_simple_program(
"#version 130\n"
"attribute vec4 position;\n"
"attribute vec2 texture_coord;\n"
"varying vec2 tex_coord;\n"
"void main() {\n"
" gl_Position = position;\n"
" tex_coord = texture_coord;\n"
"}\n",
"#version 130\n"
"uniform sampler2D S0;\n"
"varying vec2 tex_coord;\n"
"void main() {\n"
" gl_FragData[0] = texture2D(S0, tex_coord );\n"
" gl_FragDepth = texture2D(S0, tex_coord ).b;\n"
" gl_FragData[1] = texture2D(S0, tex_coord );\n"
"}\n"
);
glBindAttribLocation(prog1, 0, "position");
glBindAttribLocation(prog1, 1, "texture_coord");
if (!piglit_check_gl_error(GL_NO_ERROR)) {
printf("Setup for test failed.\n");
piglit_report_result(PIGLIT_SKIP);
}
}
static const float positions[] = {
-1.0, -1.0,
1.0, -1.0,
1.0, 1.0,
-1.0, 1.0,
};
static const float texture_coords[] = {
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
0.0, 1.0,
};
enum piglit_result
piglit_display(void)
{
GLint S0_location;
/* prepare a source texture */
glBindFramebuffer(GL_FRAMEBUFFER, fbos[0]);
glDrawBuffers(1, buffers);
glClearColor(0,0,1,0);
glClear(GL_COLOR_BUFFER_BIT);
glUseProgram(prog0);
glViewport(0, 0, 64, 64);
piglit_draw_rect(-1, -1, 2, 2);
glEnable(GL_TEXTURE_2D);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, textures[0]);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_ALWAYS);
glDepthMask(GL_TRUE);
glUseProgram(prog1);
S0_location = glGetUniformLocation(prog1, "S0");
glUniform1i(S0_location, 1);
/* render to 1 buffer */
glBindFramebuffer(GL_FRAMEBUFFER, fbos[1]);
glDrawBuffers(1, buffers);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE,
2 * sizeof(GLfloat), positions);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE,
2 * sizeof(GLfloat), texture_coords);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
/* render to 2 buffers */
glBindFramebuffer(GL_FRAMEBUFFER, fbos[2]);
glDrawBuffers(2, buffers);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
/* visualize it */
glUseProgram(0);
glBindFramebuffer(GL_FRAMEBUFFER, piglit_winsys_fbo);
glViewport(0, 0, 128, 128);
glClearColor(0,0,0.5,0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, textures[1]);
piglit_draw_rect_tex(-1, -1, 1, 1,
0, 0, 1, 1);
glBindTexture(GL_TEXTURE_2D, textures[2]);
piglit_draw_rect_tex(-1, 0.0, 1, 1,
0, 0, 1, 1);
glBindTexture(GL_TEXTURE_2D, textures[3]);
piglit_draw_rect_tex(0.0, 0.0, 1, 1,
0, 0, 1, 1);
glDisable(GL_TEXTURE_2D);
{
bool pass = true;
float black[] = {0,0,0};
float blue[] = {0,0,1};
pass = piglit_probe_pixel_rgb(4, 4, blue) && pass;
pass = piglit_probe_pixel_rgb(12, 4, black) && pass;
pass = piglit_probe_pixel_rgb(4, 64+4, blue) && pass;
pass = piglit_probe_pixel_rgb(12, 64+4, black) && pass;
pass = piglit_probe_pixel_rgb(64+4, 64+4, blue) && pass;
pass = piglit_probe_pixel_rgb(64+12, 64+4, black) && pass;
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
}
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