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mutter/tests/conform/test-texture-3d.c
Robert Bragg bbcbece6c9 tests: Improve thoroughness and reporting of make test 
This patch reworks our conformance testing framework because it seems
that glib's gtesting framework isn't really well suited to our use case.
For example we weren't able to test windows builds given the way we
were using it and also for each test we'd like to repeat the test
with several different environments so we can test important driver and
feature combinations.

This patch instead switches away to a simplified but custom approach for
running our unit tests. We hope that having a more bespoke setup will
enable us to easily extend it to focus on the details important to us.

Notable changes with this new approach are:

We can now run 'make test' for our mingw windows builds.

We've got rid of all the test-*report* make rules and we're just left
with 'make test'

'make test' now runs each test several times with different driver and
feature combinations checking the result for each run. 'make test' will
then output a concise table of all of the results.

The combinations tested are:
- OpenGL Fixed Function
- OpenGL ARBfp
- OpenGL GLSL
- OpenGL No NPOT texture support
- OpenGLES 2.0
- OpenGLES 2.0 No NPOT texture support

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2012-02-24 14:42:31 +00:00

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#include <cogl/cogl2-experimental.h>
#include <string.h>
#include "test-utils.h"
#define TEX_WIDTH 4
#define TEX_HEIGHT 8
#define TEX_DEPTH 16
/* Leave four bytes of padding between each row */
#define TEX_ROWSTRIDE (TEX_WIDTH * 4 + 4)
/* Leave four rows of padding between each image */
#define TEX_IMAGE_STRIDE ((TEX_HEIGHT + 4) * TEX_ROWSTRIDE)
typedef struct _TestState
{
CoglContext *ctx;
int fb_width;
int fb_height;
CoglFramebuffer *fb;
} TestState;
static CoglTexture3D *
create_texture_3d (CoglContext *context)
{
int x, y, z;
guint8 *data = g_malloc (TEX_IMAGE_STRIDE * TEX_DEPTH);
guint8 *p = data;
CoglTexture3D *tex;
GError *error = NULL;
for (z = 0; z < TEX_DEPTH; z++)
{
for (y = 0; y < TEX_HEIGHT; y++)
{
for (x = 0; x < TEX_WIDTH; x++)
{
/* Set red, green, blue to values based on x, y, z */
*(p++) = 255 - x * 8;
*(p++) = y * 8;
*(p++) = 255 - z * 8;
/* Fully opaque */
*(p++) = 0xff;
}
/* Set the padding between rows to 0xde */
memset (p, 0xde, TEX_ROWSTRIDE - (TEX_WIDTH * 4));
p += TEX_ROWSTRIDE - (TEX_WIDTH * 4);
}
/* Set the padding between images to 0xad */
memset (p, 0xba, TEX_IMAGE_STRIDE - (TEX_HEIGHT * TEX_ROWSTRIDE));
p += TEX_IMAGE_STRIDE - (TEX_HEIGHT * TEX_ROWSTRIDE);
}
tex = cogl_texture_3d_new_from_data (context,
TEX_WIDTH, TEX_HEIGHT, TEX_DEPTH,
COGL_PIXEL_FORMAT_RGBA_8888,
COGL_PIXEL_FORMAT_ANY,
TEX_ROWSTRIDE,
TEX_IMAGE_STRIDE,
data,
&error);
if (tex == NULL)
{
g_assert (error != NULL);
g_warning ("Failed to create 3D texture: %s", error->message);
g_assert_not_reached ();
}
g_free (data);
return tex;
}
static void
draw_frame (TestState *state)
{
CoglTexture *tex = COGL_TEXTURE (create_texture_3d (state->ctx));
CoglPipeline *pipeline = cogl_pipeline_new (state->ctx);
typedef struct { float x, y, s, t, r; } Vert;
CoglPrimitive *primitive;
CoglAttributeBuffer *attribute_buffer;
CoglAttribute *attributes[2];
Vert *verts, *v;
int i;
cogl_pipeline_set_layer_texture (pipeline, 0, tex);
cogl_object_unref (tex);
cogl_pipeline_set_layer_filters (pipeline, 0,
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
cogl_push_source (pipeline);
/* Render the texture repeated horizontally twice using a regular
cogl rectangle. This should end up with the r texture coordinates
as zero */
cogl_rectangle_with_texture_coords (0.0f, 0.0f, TEX_WIDTH * 2, TEX_HEIGHT,
0.0f, 0.0f, 2.0f, 1.0f);
cogl_pop_source ();
/* Render all of the images in the texture using coordinates from a
CoglPrimitive */
v = verts = g_new (Vert, 4 * TEX_DEPTH);
for (i = 0; i < TEX_DEPTH; i++)
{
float r = (i + 0.5f) / TEX_DEPTH;
v->x = i * TEX_WIDTH;
v->y = TEX_HEIGHT;
v->s = 0;
v->t = 0;
v->r = r;
v++;
v->x = i * TEX_WIDTH;
v->y = TEX_HEIGHT * 2;
v->s = 0;
v->t = 1;
v->r = r;
v++;
v->x = i * TEX_WIDTH + TEX_WIDTH;
v->y = TEX_HEIGHT * 2;
v->s = 1;
v->t = 1;
v->r = r;
v++;
v->x = i * TEX_WIDTH + TEX_WIDTH;
v->y = TEX_HEIGHT;
v->s = 1;
v->t = 0;
v->r = r;
v++;
}
attribute_buffer = cogl_attribute_buffer_new (state->ctx,
4 * TEX_DEPTH * sizeof (Vert),
verts);
attributes[0] = cogl_attribute_new (attribute_buffer,
"cogl_position_in",
sizeof (Vert),
G_STRUCT_OFFSET (Vert, x),
2, /* n_components */
COGL_ATTRIBUTE_TYPE_FLOAT);
attributes[1] = cogl_attribute_new (attribute_buffer,
"cogl_tex_coord_in",
sizeof (Vert),
G_STRUCT_OFFSET (Vert, s),
3, /* n_components */
COGL_ATTRIBUTE_TYPE_FLOAT);
primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
6 * TEX_DEPTH,
attributes,
2 /* n_attributes */);
cogl_primitive_set_indices (primitive,
cogl_get_rectangle_indices (state->ctx,
TEX_DEPTH),
6 * TEX_DEPTH);
cogl_framebuffer_draw_primitive (state->fb, pipeline, primitive);
g_free (verts);
cogl_object_unref (primitive);
cogl_object_unref (attributes[0]);
cogl_object_unref (attributes[1]);
cogl_object_unref (attribute_buffer);
cogl_object_unref (pipeline);
}
static void
validate_block (int block_x, int block_y, int z)
{
int x, y;
for (y = 0; y < TEX_HEIGHT; y++)
for (x = 0; x < TEX_WIDTH; x++)
test_utils_check_pixel_rgb (block_x * TEX_WIDTH + x,
block_y * TEX_HEIGHT + y,
255 - x * 8,
y * 8,
255 - z * 8);
}
static void
validate_result (void)
{
int i;
validate_block (0, 0, 0);
for (i = 0; i < TEX_DEPTH; i++)
validate_block (i, 1, i);
}
static void
test_multi_texture (TestState *state)
{
CoglPipeline *pipeline;
CoglTexture3D *tex_3d;
CoglTexture2D *tex_2d;
guint8 tex_data[4];
cogl_framebuffer_clear4f (state->fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
/* Tests a pipeline that is using multi-texturing to combine a 3D
texture with a 2D texture. The texture from another layer is
sampled with TEXTURE_? just to pick up a specific bug that was
happening with the ARBfp fragend */
pipeline = cogl_pipeline_new (state->ctx);
tex_data[0] = 0xff;
tex_data[1] = 0x00;
tex_data[2] = 0x00;
tex_data[3] = 0xff;
tex_2d = cogl_texture_2d_new_from_data (state->ctx,
1, 1, /* width/height */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
4, /* rowstride */
tex_data,
NULL);
cogl_pipeline_set_layer_texture (pipeline, 0, COGL_TEXTURE (tex_2d));
tex_data[0] = 0x00;
tex_data[1] = 0xff;
tex_data[2] = 0x00;
tex_data[3] = 0xff;
tex_3d = cogl_texture_3d_new_from_data (state->ctx,
1, 1, 1, /* width/height/depth */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
4, /* rowstride */
4, /* image_stride */
tex_data,
NULL);
cogl_pipeline_set_layer_texture (pipeline, 1, COGL_TEXTURE (tex_3d));
cogl_pipeline_set_layer_combine (pipeline, 0,
"RGBA = REPLACE(PREVIOUS)",
NULL);
cogl_pipeline_set_layer_combine (pipeline, 1,
"RGBA = ADD(TEXTURE_0, TEXTURE_1)",
NULL);
cogl_push_source (pipeline);
cogl_rectangle (0, 0, 10, 10);
cogl_pop_source ();
test_utils_check_pixel (5, 5, 0xffff00ff);
cogl_object_unref (tex_2d);
cogl_object_unref (tex_3d);
cogl_object_unref (pipeline);
}
void
test_cogl_texture_3d (TestUtilsGTestFixture *fixture,
void *data)
{
TestUtilsSharedState *shared_state = data;
/* Check whether GL supports the rectangle extension. If not we'll
just assume the test passes */
if (cogl_has_feature (shared_state->ctx, COGL_FEATURE_ID_TEXTURE_3D))
{
TestState state;
state.ctx = shared_state->ctx;
state.fb_width = cogl_framebuffer_get_width (shared_state->fb);
state.fb_height = cogl_framebuffer_get_height (shared_state->fb);
state.fb = shared_state->fb;
cogl_framebuffer_orthographic (shared_state->fb,
0, 0, /* x_1, y_1 */
state.fb_width, /* x_2 */
state.fb_height /* y_2 */,
-1, 100 /* near/far */);
draw_frame (&state);
validate_result ();
test_multi_texture (&state);
if (cogl_test_verbose ())
g_print ("OK\n");
}
else if (cogl_test_verbose ())
g_print ("Skipping\n");
}
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