mirror of
https://github.com/brl/mutter.git
synced 2024-11-11 00:26:40 -05:00
e7cdb1b11b
Uninitialized textures could contain random bits. That makes the test fail as glColorMask is used to let only one of the RGB pass through. https://bugzilla.gnome.org/show_bug.cgi?id=660387 Reviewed-by: Neil Roberts <neil@linux.intel.com>
129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
#include <cogl/cogl.h>
|
|
|
|
#include "test-utils.h"
|
|
|
|
#define TEX_SIZE 128
|
|
|
|
#define NUM_FBOS 3
|
|
|
|
typedef struct _TestState
|
|
{
|
|
int width;
|
|
int height;
|
|
|
|
CoglHandle tex[NUM_FBOS];
|
|
CoglFramebuffer *fbo[NUM_FBOS];
|
|
} TestState;
|
|
|
|
static void
|
|
check_pixel (int x, int y, guint8 r, guint8 g, guint8 b)
|
|
{
|
|
guint32 pixel;
|
|
char *screen_pixel;
|
|
char *intended_pixel;
|
|
|
|
cogl_read_pixels (x, y, 1, 1, COGL_READ_PIXELS_COLOR_BUFFER,
|
|
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
|
|
(guint8 *) &pixel);
|
|
|
|
screen_pixel = g_strdup_printf ("#%06x", GUINT32_FROM_BE (pixel) >> 8);
|
|
intended_pixel = g_strdup_printf ("#%02x%02x%02x", r, g, b);
|
|
|
|
g_assert_cmpstr (screen_pixel, ==, intended_pixel);
|
|
|
|
g_free (screen_pixel);
|
|
g_free (intended_pixel);
|
|
}
|
|
|
|
static void
|
|
paint (TestState *state)
|
|
{
|
|
CoglColor bg;
|
|
int i;
|
|
|
|
cogl_set_source_color4ub (255, 255, 255, 255);
|
|
|
|
/* We push the third framebuffer first so that later we can switch
|
|
back to it by popping to test that that works */
|
|
cogl_push_framebuffer (state->fbo[2]);
|
|
|
|
cogl_push_framebuffer (state->fbo[0]);
|
|
cogl_rectangle (-1.0, -1.0, 1.0, 1.0);
|
|
cogl_pop_framebuffer ();
|
|
|
|
cogl_push_framebuffer (state->fbo[1]);
|
|
cogl_rectangle (-1.0, -1.0, 1.0, 1.0);
|
|
cogl_pop_framebuffer ();
|
|
|
|
/* We should now be back on the third framebuffer */
|
|
cogl_rectangle (-1.0, -1.0, 1.0, 1.0);
|
|
cogl_pop_framebuffer ();
|
|
|
|
cogl_color_init_from_4ub (&bg, 128, 128, 128, 255);
|
|
cogl_clear (&bg, COGL_BUFFER_BIT_COLOR | COGL_BUFFER_BIT_DEPTH);
|
|
|
|
/* Render all of the textures to the screen */
|
|
for (i = 0; i < NUM_FBOS; i++)
|
|
{
|
|
cogl_set_source_texture (state->tex[i]);
|
|
cogl_rectangle (2.0f / NUM_FBOS * i - 1.0f, -1.0f,
|
|
2.0f / NUM_FBOS * (i + 1) - 1.0f, 1.0f);
|
|
}
|
|
|
|
/* Verify all of the fbos drew the right color */
|
|
for (i = 0; i < NUM_FBOS; i++)
|
|
{
|
|
guint8 expected_colors[NUM_FBOS][4] =
|
|
{ { 0xff, 0x00, 0x00, 0xff },
|
|
{ 0x00, 0xff, 0x00, 0xff },
|
|
{ 0x00, 0x00, 0xff, 0xff } };
|
|
|
|
check_pixel (state->width * (i + 0.5f) / NUM_FBOS,
|
|
state->height / 2,
|
|
expected_colors[i][0],
|
|
expected_colors[i][1],
|
|
expected_colors[i][2]);
|
|
}
|
|
}
|
|
|
|
void
|
|
test_cogl_color_mask (TestUtilsGTestFixture *fixture,
|
|
void *data)
|
|
{
|
|
TestUtilsSharedState *shared_state = data;
|
|
TestState state;
|
|
CoglColor bg;
|
|
int i;
|
|
|
|
state.width = cogl_framebuffer_get_width (shared_state->fb);
|
|
state.height = cogl_framebuffer_get_height (shared_state->fb);
|
|
|
|
cogl_color_init_from_4ub (&bg, 0, 0, 0, 255);
|
|
|
|
for (i = 0; i < NUM_FBOS; i++)
|
|
{
|
|
state.tex[i] = cogl_texture_new_with_size (128, 128,
|
|
COGL_TEXTURE_NO_ATLAS,
|
|
COGL_PIXEL_FORMAT_RGB_888);
|
|
|
|
|
|
state.fbo[i] = cogl_offscreen_new_to_texture (state.tex[i]);
|
|
|
|
/* Clear the texture color bits */
|
|
cogl_push_framebuffer (state.fbo[i]);
|
|
cogl_clear (&bg, COGL_BUFFER_BIT_COLOR);
|
|
cogl_pop_framebuffer ();
|
|
|
|
cogl_framebuffer_set_color_mask (state.fbo[i],
|
|
i == 0 ? COGL_COLOR_MASK_RED :
|
|
i == 1 ? COGL_COLOR_MASK_GREEN :
|
|
COGL_COLOR_MASK_BLUE);
|
|
}
|
|
|
|
paint (&state);
|
|
|
|
if (g_test_verbose ())
|
|
g_print ("OK\n");
|
|
}
|
|
|