mutter/tests/conform/test-wrap-rectangle-textures.c
Robert Bragg af7398788a remove internal_format and redundant error arguments
Texture allocation is now consistently handled lazily such that the
internal format can now be controlled using
cogl_texture_set_components() and cogl_texture_set_premultiplied()
before allocating the texture with cogl_texture_allocate(). This means
that the internal_format arguments to texture constructors are now
redundant and since most of the texture constructors now can't ever fail
the error arguments are also redundant. This now means we no longer
use CoglPixelFormat in the public api for describing the internal format
of textures which had been bad solution originally due to how specific
CoglPixelFormat is which is missleading when we don't support such
explicit control over the internal format.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 99a53c82e9ab0a1e5ee35941bf83dc334b1fbe87)

Note: there are numerous API changes for functions currently marked
as 'unstable' which we don't think are in use by anyone depending on
a stable 1.x api. Compared to the original patch though this avoids
changing the cogl_texture_rectangle_new_with_size() api which we know
is used by Mutter.
2014-01-09 15:49:47 +00:00

176 lines
5.5 KiB
C

#include <cogl/cogl.h>
#include <string.h>
#include "test-utils.h"
#define DRAW_SIZE 64
static CoglPipeline *
create_base_pipeline (void)
{
CoglBitmap *bmp;
CoglTextureRectangle *tex;
CoglPipeline *pipeline;
uint8_t tex_data[] =
{
0x44, 0x44, 0x44, 0x88, 0x88, 0x88,
0xcc, 0xcc, 0xcc, 0xff, 0xff, 0xff
};
bmp = cogl_bitmap_new_for_data (test_ctx,
2, 2, /* width/height */
COGL_PIXEL_FORMAT_RGB_888,
2 * 3, /* rowstride */
tex_data);
tex = cogl_texture_rectangle_new_from_bitmap (bmp);
cogl_object_unref (bmp);
pipeline = cogl_pipeline_new (test_ctx);
cogl_pipeline_set_layer_filters (pipeline,
0, /* layer */
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
cogl_pipeline_set_layer_texture (pipeline,
0, /* layer */
tex);
cogl_object_unref (tex);
return pipeline;
}
static void
check_colors (int x_offset,
int y_offset,
const uint8_t expected_colors[9])
{
int x, y;
for (y = 0; y < 4; y++)
for (x = 0; x < 4; x++)
{
uint32_t color = expected_colors[x + y * 4];
test_utils_check_region (test_fb,
x * DRAW_SIZE / 4 + 1 + x_offset,
y * DRAW_SIZE / 4 + 1 + y_offset,
DRAW_SIZE / 4 - 2,
DRAW_SIZE / 4 - 2,
0xff |
(color << 8) |
(color << 16) |
(color << 24));
}
}
static void
test_pipeline (CoglPipeline *pipeline,
int x_offset,
int y_offset,
const uint8_t expected_colors[9])
{
float x1 = x_offset;
float y1 = y_offset;
float x2 = x1 + DRAW_SIZE;
float y2 = y1 + DRAW_SIZE;
int y, x;
cogl_framebuffer_draw_textured_rectangle (test_fb,
pipeline,
x1, y1,
x2, y2,
-0.5f, /* s1 */
-0.5f, /* t1 */
1.5f, /* s2 */
1.5f /* t2 */);
check_colors (x_offset, y_offset, expected_colors);
/* Also try drawing each quadrant of the rectangle with a small
* rectangle */
for (y = -1; y < 3; y++)
for (x = -1; x < 3; x++)
{
x1 = x_offset + (x + 1) * DRAW_SIZE / 4 + DRAW_SIZE;
y1 = y_offset + (y + 1) * DRAW_SIZE / 4;
x2 = x1 + DRAW_SIZE / 4;
y2 = y1 + DRAW_SIZE / 4;
cogl_framebuffer_draw_textured_rectangle (test_fb,
pipeline,
x1, y1,
x2, y2,
x / 2.0f, /* s1 */
y / 2.0f, /* t1 */
(x + 1) / 2.0f, /* s2 */
(y + 1) / 2.0f /* t2 */);
}
check_colors (x_offset + DRAW_SIZE, y_offset, expected_colors);
}
void
test_wrap_rectangle_textures (void)
{
float fb_width = cogl_framebuffer_get_width (test_fb);
float fb_height = cogl_framebuffer_get_height (test_fb);
CoglPipeline *base_pipeline;
CoglPipeline *clamp_pipeline;
CoglPipeline *repeat_pipeline;
/* The textures are drawn with the texture coordinates from
* -0.5→1.5. That means we get one complete copy of the texture and
* an extra half of the texture surrounding it. The drawing is
* tested against a 4x4 grid of colors. The center 2x2 colours
* specify the normal texture colors and the other colours specify
* what the wrap mode should generate */
static const uint8_t clamp_colors[] =
{
0x44, 0x44, 0x88, 0x88,
0x44, 0x44, 0x88, 0x88,
0xcc, 0xcc, 0xff, 0xff,
0xcc, 0xcc, 0xff, 0xff
};
static const uint8_t repeat_colors[] =
{
0xff, 0xcc, 0xff, 0xcc,
0x88, 0x44, 0x88, 0x44,
0xff, 0xcc, 0xff, 0xcc,
0x88, 0x44, 0x88, 0x44
};
cogl_framebuffer_orthographic (test_fb,
0, 0, /* x_1, y_1 */
fb_width, /* x_2 */
fb_height /* y_2 */,
-1, 100 /* near/far */);
base_pipeline = create_base_pipeline ();
clamp_pipeline = cogl_pipeline_copy (base_pipeline);
cogl_pipeline_set_layer_wrap_mode (clamp_pipeline,
0, /* layer */
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
repeat_pipeline = cogl_pipeline_copy (base_pipeline);
cogl_pipeline_set_layer_wrap_mode (repeat_pipeline,
0, /* layer */
COGL_PIPELINE_WRAP_MODE_REPEAT);
test_pipeline (clamp_pipeline,
0, 0, /* x/y offset */
clamp_colors);
test_pipeline (repeat_pipeline,
0, DRAW_SIZE * 2, /* x/y offset */
repeat_colors);
cogl_object_unref (repeat_pipeline);
cogl_object_unref (clamp_pipeline);
cogl_object_unref (base_pipeline);
}