static GLboolean
draw_and_test(const char *destination, int drawable_width, int drawable_height)
{
const GLfloat red[4] = {1.0, 0.0, 0.0, 0.0};
const GLfloat green[4] = {0.0, 1.0, 0.0, 0.0};
const GLfloat blue[4] = {0.0, 0.0, 1.0, 0.0};
int i;
int center_x_start = (drawable_width - fdo_bitmap_width) / 2;
int center_y_start = (drawable_height - fdo_bitmap_height) / 2;
int start_x, start_y;
struct probes probes;
GLboolean pass = GL_TRUE;
memset(&probes, 0, sizeof(probes));
/* Set up projection matrix so we can just draw using window
* coordinates.
*/
glViewport(0, 0, drawable_width, drawable_height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, drawable_width, 0, drawable_height, -1, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
/* Clear to black */
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT);
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
glColor4fv(red);
/* Center: full image */
glRasterPos2f(center_x_start, center_y_start);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "center full", red,
center_x_start, center_y_start,
fdo_bitmap_width, fdo_bitmap_height,
0, 0);
glEnable(GL_SCISSOR_TEST);
glColor4fv(green);
/* Left clipped */
start_x = center_x_start - fdo_bitmap_width - 10;
start_y = center_y_start;
glScissor(start_x + fdo_bitmap_width / 4,
start_y,
fdo_bitmap_width,
fdo_bitmap_height);
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "left glscissor clipped area", NULL,
start_x, start_y,
fdo_bitmap_width / 4, fdo_bitmap_height,
0, 0);
add_probe(&probes, "left glscissor unclipped area", green,
start_x + fdo_bitmap_width / 4, start_y,
fdo_bitmap_width * 3 / 4, fdo_bitmap_height,
fdo_bitmap_width / 4, 0);
/* Right clipped */
start_x = center_x_start + fdo_bitmap_width + 10;
start_y = center_y_start;
glScissor(start_x,
start_y,
fdo_bitmap_width * 3 / 4,
fdo_bitmap_height);
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "right glscissor clipped area", NULL,
start_x + fdo_bitmap_width * 3 /4,
start_y,
fdo_bitmap_width / 4,
fdo_bitmap_height,
0, 0);
add_probe(&probes, "right glscissor unclipped area", green,
start_x, start_y,
fdo_bitmap_width * 3 / 4, fdo_bitmap_height,
0, 0);
/* Top clipped */
start_x = center_x_start;
start_y = center_y_start + fdo_bitmap_height + 10;
glScissor(start_x,
start_y,
fdo_bitmap_width,
fdo_bitmap_height * 3 / 4);
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "top glscissor clipped area", NULL,
start_x,
start_y + fdo_bitmap_height * 3 /4,
fdo_bitmap_width,
fdo_bitmap_height / 4,
0, 0);
add_probe(&probes, "top glscissor unclipped area", green,
start_x, start_y,
fdo_bitmap_width, fdo_bitmap_height * 3 / 4,
0, 0);
/* Bottom clipped */
start_x = center_x_start;
start_y = center_y_start - fdo_bitmap_height - 10;
glScissor(start_x,
start_y + fdo_bitmap_height / 4,
fdo_bitmap_width,
fdo_bitmap_height);
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "bottom glscissor clipped area", NULL,
start_x, start_y,
fdo_bitmap_width, fdo_bitmap_height / 4,
0, 0);
add_probe(&probes, "bottom glscissor unclipped area", green,
start_x, start_y + fdo_bitmap_height / 4,
fdo_bitmap_width, fdo_bitmap_height * 3 / 4,
0, fdo_bitmap_height / 4);
glDisable(GL_SCISSOR_TEST);
glColor4fv(blue);
/* Left side of drawable (not drawn due to invalid pos) */
start_x = -fdo_bitmap_width / 4;
start_y = center_y_start;
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "left drawable clipped area", NULL,
start_x + fdo_bitmap_width / 4, start_y,
fdo_bitmap_width * 3 / 4, fdo_bitmap_height,
fdo_bitmap_width / 4, 0);
/* Right side of drawable */
start_x = drawable_width - fdo_bitmap_width * 3 / 4;
start_y = center_y_start;
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "right drawable unclipped area", blue,
start_x, start_y,
fdo_bitmap_width * 3 / 4, fdo_bitmap_height,
0, 0);
/* Top of drawable */
start_x = center_x_start;
start_y = drawable_height - fdo_bitmap_height * 3 / 4;
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "top drawable unclipped area", blue,
start_x, start_y,
fdo_bitmap_width, fdo_bitmap_height * 3 / 4,
0, 0);
/* Bottom of drawable (not drawn due to invalid pos) */
start_x = center_x_start;
start_y = -fdo_bitmap_height / 4;
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "bottom drawable clipped area", NULL,
start_x, start_y,
fdo_bitmap_width, fdo_bitmap_height * 3 / 4,
0, 0);
for (i = 0; i < probes.n_probes; i++)
pass &= verify_bitmap_contents(&probes,
drawable_width, drawable_height,
i);
return pass;
}
enum piglit_result
piglit_display()
{
const GLfloat red[4] = {1.0, 0.0, 0.0, 0.0};
const GLfloat green[4] = {0.0, 1.0, 0.0, 0.0};
const GLfloat blue[4] = {0.0, 0.0, 1.0, 0.0};
int i;
int center_x_start = (piglit_width - fdo_bitmap_width) / 2;
int center_y_start = (piglit_height - fdo_bitmap_height) / 2;
int start_x, start_y;
struct probes probes;
GLboolean pass = GL_TRUE;
piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
memset(&probes, 0, sizeof(probes));
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT);
glColor4fv(red);
/* Center: full image */
glRasterPos2f(center_x_start, center_y_start);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "center full", red,
center_x_start, center_y_start,
fdo_bitmap_width, fdo_bitmap_height,
0, 0);
glEnable(GL_SCISSOR_TEST);
glColor4fv(green);
/* Left clipped */
start_x = center_x_start - fdo_bitmap_width - 10;
start_y = center_y_start;
glScissor(start_x + fdo_bitmap_width / 4,
start_y,
fdo_bitmap_width,
fdo_bitmap_height);
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "left glscissor clipped area", NULL,
start_x, start_y,
fdo_bitmap_width / 4, fdo_bitmap_height,
0, 0);
add_probe(&probes, "left glscissor unclipped area", green,
start_x + fdo_bitmap_width / 4, start_y,
fdo_bitmap_width * 3 / 4, fdo_bitmap_height,
fdo_bitmap_width / 4, 0);
/* Right clipped */
start_x = center_x_start + fdo_bitmap_width + 10;
start_y = center_y_start;
glScissor(start_x,
start_y,
fdo_bitmap_width * 3 / 4,
fdo_bitmap_height);
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "right glscissor clipped area", NULL,
start_x + fdo_bitmap_width * 3 /4,
start_y,
fdo_bitmap_width / 4,
fdo_bitmap_height,
0, 0);
add_probe(&probes, "right glscissor unclipped area", green,
start_x, start_y,
fdo_bitmap_width * 3 / 4, fdo_bitmap_height,
0, 0);
/* Top clipped */
start_x = center_x_start;
start_y = center_y_start + fdo_bitmap_height + 10;
glScissor(start_x,
start_y,
fdo_bitmap_width,
fdo_bitmap_height * 3 / 4);
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "top glscissor clipped area", NULL,
start_x,
start_y + fdo_bitmap_height * 3 /4,
fdo_bitmap_width,
fdo_bitmap_height / 4,
0, 0);
add_probe(&probes, "top glscissor unclipped area", green,
start_x, start_y,
fdo_bitmap_width, fdo_bitmap_height * 3 / 4,
0, 0);
/* Bottom clipped */
start_x = center_x_start;
start_y = center_y_start - fdo_bitmap_height - 10;
glScissor(start_x,
start_y + fdo_bitmap_height / 4,
fdo_bitmap_width,
fdo_bitmap_height);
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "bottom glscissor clipped area", NULL,
start_x, start_y,
fdo_bitmap_width, fdo_bitmap_height / 4,
0, 0);
add_probe(&probes, "bottom glscissor unclipped area", green,
start_x, start_y + fdo_bitmap_height / 4,
fdo_bitmap_width, fdo_bitmap_height * 3 / 4,
0, fdo_bitmap_height / 4);
glDisable(GL_SCISSOR_TEST);
glColor4fv(blue);
/* Left side of window (not drawn due to invalid pos) */
start_x = -fdo_bitmap_width / 4;
start_y = center_y_start;
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "left window clipped area", NULL,
start_x + fdo_bitmap_width / 4, start_y,
fdo_bitmap_width * 3 / 4, fdo_bitmap_height,
fdo_bitmap_width / 4, 0);
/* Right side of window */
start_x = piglit_width - fdo_bitmap_width * 3 / 4;
start_y = center_y_start;
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "right window unclipped area", blue,
start_x, start_y,
fdo_bitmap_width * 3 / 4, fdo_bitmap_height,
0, 0);
/* Top of window */
start_x = center_x_start;
start_y = piglit_height - fdo_bitmap_height * 3 / 4;
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "top window unclipped area", blue,
start_x, start_y,
fdo_bitmap_width, fdo_bitmap_height * 3 / 4,
0, 0);
/* Bottom of window (not drawn due to invalid pos) */
start_x = center_x_start;
start_y = -fdo_bitmap_height / 4;
glRasterPos2f(start_x, start_y);
glBitmap(fdo_bitmap_width, fdo_bitmap_height, 0, 0, 0, 0, fdo_bitmap);
add_probe(&probes, "bottom window clipped area", NULL,
start_x, start_y,
fdo_bitmap_width, fdo_bitmap_height * 3 / 4,
0, 0);
for (i = 0; i < probes.n_probes; i++) {
pass = pass && verify_bitmap_contents(&probes, i);
}
glutSwapBuffers();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
