mutter/tests/conform/test-npot-texture.c
Robert Bragg 937337993d tests: stop using cogl-auto-texture apis
The plan is to remove the cogl-auto-texture apis since they hide a bit
too much from developers but currently the conformance tests depend on
these apis in numerous places.

For the conformance tests it makes some sense to continue using high
level texture apis similar to the auto-texture apis since we may want
to make broad variations to how textures are allocated as part of the
testing running if that might help exercise more code paths.

This patch copies much of the auto-texture functionality into some
slightly more special purpose utilities in test-utils.c/h. Minor changes
include being constrained to the public Cogl api and they also don't
let you catch CoglErrors and just assume they should abort on error.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 911df79776ce6f695351c15e9872b4f1479d30bf)

Conflicts:
	tests/conform/test-atlas-migration.c
	tests/conform/test-backface-culling.c
	tests/conform/test-blend-strings.c
	tests/conform/test-color-mask.c
	tests/conform/test-just-vertex-shader.c
	tests/conform/test-npot-texture.c
	tests/conform/test-primitive.c
	tests/conform/test-snippets.c
	tests/conform/test-texture-get-set-data.c
	tests/conform/test-texture-mipmap-get-set.c
	tests/conform/test-texture-no-allocate.c
	tests/conform/test-wrap-modes.c
2013-07-29 17:56:07 +01:00

172 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,
COGL_PIXEL_FORMAT_ANY,
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");
}