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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>
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#include "test-utils.h"
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#define TEX_SIZE 128
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#define NUM_FBOS 3
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typedef struct _TestState
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{
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int width;
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int height;
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CoglHandle tex[NUM_FBOS];
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CoglFramebuffer *fbo[NUM_FBOS];
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} TestState;
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static void
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check_pixel (int x, int y, guint8 r, guint8 g, guint8 b)
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{
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guint32 pixel;
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char *screen_pixel;
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char *intended_pixel;
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cogl_read_pixels (x, y, 1, 1, COGL_READ_PIXELS_COLOR_BUFFER,
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COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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(guint8 *) &pixel);
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screen_pixel = g_strdup_printf ("#%06x", GUINT32_FROM_BE (pixel) >> 8);
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intended_pixel = g_strdup_printf ("#%02x%02x%02x", r, g, b);
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g_assert_cmpstr (screen_pixel, ==, intended_pixel);
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g_free (screen_pixel);
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g_free (intended_pixel);
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}
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static void
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paint (TestState *state)
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{
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CoglColor bg;
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int i;
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cogl_set_source_color4ub (255, 255, 255, 255);
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/* We push the third framebuffer first so that later we can switch
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back to it by popping to test that that works */
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cogl_push_framebuffer (state->fbo[2]);
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cogl_push_framebuffer (state->fbo[0]);
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cogl_rectangle (-1.0, -1.0, 1.0, 1.0);
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cogl_pop_framebuffer ();
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cogl_push_framebuffer (state->fbo[1]);
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cogl_rectangle (-1.0, -1.0, 1.0, 1.0);
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cogl_pop_framebuffer ();
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/* We should now be back on the third framebuffer */
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cogl_rectangle (-1.0, -1.0, 1.0, 1.0);
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cogl_pop_framebuffer ();
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cogl_color_init_from_4ub (&bg, 128, 128, 128, 255);
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cogl_clear (&bg, COGL_BUFFER_BIT_COLOR | COGL_BUFFER_BIT_DEPTH);
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/* Render all of the textures to the screen */
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for (i = 0; i < NUM_FBOS; i++)
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{
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cogl_set_source_texture (state->tex[i]);
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cogl_rectangle (2.0f / NUM_FBOS * i - 1.0f, -1.0f,
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2.0f / NUM_FBOS * (i + 1) - 1.0f, 1.0f);
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}
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/* Verify all of the fbos drew the right color */
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for (i = 0; i < NUM_FBOS; i++)
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{
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guint8 expected_colors[NUM_FBOS][4] =
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{ { 0xff, 0x00, 0x00, 0xff },
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{ 0x00, 0xff, 0x00, 0xff },
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{ 0x00, 0x00, 0xff, 0xff } };
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check_pixel (state->width * (i + 0.5f) / NUM_FBOS,
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state->height / 2,
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expected_colors[i][0],
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expected_colors[i][1],
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expected_colors[i][2]);
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}
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}
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void
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test_cogl_color_mask (TestUtilsGTestFixture *fixture,
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void *data)
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{
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TestUtilsSharedState *shared_state = data;
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TestState state;
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CoglColor bg;
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int i;
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state.width = cogl_framebuffer_get_width (shared_state->fb);
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state.height = cogl_framebuffer_get_height (shared_state->fb);
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cogl_color_init_from_4ub (&bg, 0, 0, 0, 255);
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for (i = 0; i < NUM_FBOS; i++)
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{
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state.tex[i] = cogl_texture_new_with_size (128, 128,
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COGL_TEXTURE_NO_ATLAS,
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COGL_PIXEL_FORMAT_RGB_888);
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state.fbo[i] = cogl_offscreen_new_to_texture (state.tex[i]);
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/* Clear the texture color bits */
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cogl_push_framebuffer (state.fbo[i]);
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cogl_clear (&bg, COGL_BUFFER_BIT_COLOR);
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cogl_pop_framebuffer ();
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cogl_framebuffer_set_color_mask (state.fbo[i],
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i == 0 ? COGL_COLOR_MASK_RED :
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i == 1 ? COGL_COLOR_MASK_GREEN :
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COGL_COLOR_MASK_BLUE);
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}
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paint (&state);
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if (g_test_verbose ())
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g_print ("OK\n");
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}
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