mutter/tests/conform/test-npot-texture.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

171 lines
5.2 KiB
C

#include <cogl/cogl.h>
#include <string.h>
#include "test-utils.h"
/* Non-power-of-two sized texture that should cause slicing */
#define TEXTURE_SIZE 384
/* Number of times to split the texture up on each axis */
#define PARTS 2
/* The texture is split into four parts, each with a different colour */
#define PART_SIZE (TEXTURE_SIZE / PARTS)
/* Amount of pixels to skip off the top, bottom, left and right of the
texture when reading back the stage */
#define TEST_INSET 4
/* Size to actually render the texture at */
#define TEXTURE_RENDER_SIZE TEXTURE_SIZE
/* The size of a part once rendered */
#define PART_RENDER_SIZE (TEXTURE_RENDER_SIZE / PARTS)
static const uint32_t corner_colors[PARTS * PARTS] =
{
/* Top left - red */ 0xff0000ff,
/* Top right - green */ 0x00ff00ff,
/* Bottom left - blue */ 0x0000ffff,
/* Bottom right - yellow */ 0xffff00ff
};
static void
validate_part (int xnum,
int ynum,
uint32_t color)
{
test_utils_check_region (test_fb,
xnum * PART_RENDER_SIZE + TEST_INSET,
ynum * PART_RENDER_SIZE + TEST_INSET,
PART_RENDER_SIZE - TEST_INSET * 2,
PART_RENDER_SIZE - TEST_INSET * 2,
color);
}
static void
validate_result (void)
{
/* Validate that all four corners of the texture are drawn in the
right color */
validate_part (0, 0, corner_colors[0]);
validate_part (1, 0, corner_colors[1]);
validate_part (0, 1, corner_colors[2]);
validate_part (1, 1, corner_colors[3]);
}
static CoglTexture *
make_texture (void)
{
void *tex_data;
uint32_t *p;
CoglTexture *tex;
int partx, party, width, height;
p = tex_data = g_malloc (TEXTURE_SIZE * TEXTURE_SIZE * 4);
/* Make a texture with a different color for each part */
for (party = 0; party < PARTS; party++)
{
height = (party < PARTS - 1
? PART_SIZE
: TEXTURE_SIZE - PART_SIZE * (PARTS - 1));
for (partx = 0; partx < PARTS; partx++)
{
uint32_t color = corner_colors[party * PARTS + partx];
width = (partx < PARTS - 1
? PART_SIZE
: TEXTURE_SIZE - PART_SIZE * (PARTS - 1));
while (width-- > 0)
*(p++) = GUINT32_TO_BE (color);
}
while (--height > 0)
{
memcpy (p, p - TEXTURE_SIZE, TEXTURE_SIZE * 4);
p += TEXTURE_SIZE;
}
}
tex = test_utils_texture_new_from_data (test_ctx,
TEXTURE_SIZE,
TEXTURE_SIZE,
TEST_UTILS_TEXTURE_NO_ATLAS,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
TEXTURE_SIZE * 4,
tex_data);
g_free (tex_data);
if (cogl_test_verbose ())
{
if (cogl_texture_is_sliced (tex))
g_print ("Texture is sliced\n");
else
g_print ("Texture is not sliced\n");
}
/* The texture should be sliced unless NPOTs are supported */
g_assert (cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_NPOT)
? !cogl_texture_is_sliced (tex)
: cogl_texture_is_sliced (tex));
return tex;
}
static void
paint (void)
{
CoglPipeline *pipeline = cogl_pipeline_new (test_ctx);
CoglTexture *texture = make_texture ();
int y, x;
cogl_pipeline_set_layer_texture (pipeline, 0, texture);
/* Just render the texture in the top left corner */
/* Render the texture using four separate rectangles */
for (y = 0; y < 2; y++)
for (x = 0; x < 2; x++)
cogl_framebuffer_draw_textured_rectangle (test_fb,
pipeline,
x * TEXTURE_RENDER_SIZE / 2,
y * TEXTURE_RENDER_SIZE / 2,
(x + 1) *
TEXTURE_RENDER_SIZE / 2,
(y + 1) *
TEXTURE_RENDER_SIZE / 2,
x / 2.0f,
y / 2.0f,
(x + 1) / 2.0f,
(y + 1) / 2.0f);
cogl_object_unref (pipeline);
cogl_object_unref (texture);
}
void
test_npot_texture (void)
{
if (cogl_test_verbose ())
{
if (cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_NPOT))
g_print ("NPOT textures are supported\n");
else
g_print ("NPOT textures are not supported\n");
}
cogl_framebuffer_orthographic (test_fb,
0, 0,
cogl_framebuffer_get_width (test_fb),
cogl_framebuffer_get_height (test_fb),
-1,
100);
paint ();
validate_result ();
if (cogl_test_verbose ())
g_print ("OK\n");
}