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mutter/tests/conform/test-texture-3d.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

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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
{
int fb_width;
int fb_height;
} TestState;
static CoglTexture3D *
create_texture_3d (CoglContext *context)
{
int x, y, z;
uint8_t *data = g_malloc (TEX_IMAGE_STRIDE * TEX_DEPTH);
uint8_t *p = data;
CoglTexture3D *tex;
CoglError *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,
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 = create_texture_3d (test_ctx);
CoglPipeline *pipeline = cogl_pipeline_new (test_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);
/* Render the texture repeated horizontally twice using a regular
cogl rectangle. This should end up with the r texture coordinates
as zero */
cogl_framebuffer_draw_textured_rectangle (test_fb, pipeline,
0.0f, 0.0f, TEX_WIDTH * 2, TEX_HEIGHT,
0.0f, 0.0f, 2.0f, 1.0f);
/* 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 (test_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 (test_ctx,
TEX_DEPTH),
6 * TEX_DEPTH);
cogl_primitive_draw (primitive, test_fb, pipeline);
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 (test_fb,
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;
uint8_t tex_data[4];
cogl_framebuffer_clear4f (test_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 (test_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 (test_ctx,
1, 1, /* width/height */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
4, /* rowstride */
tex_data,
NULL);
cogl_pipeline_set_layer_texture (pipeline, 0, 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 (test_ctx,
1, 1, 1, /* width/height/depth */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
4, /* rowstride */
4, /* image_stride */
tex_data,
NULL);
cogl_pipeline_set_layer_texture (pipeline, 1, 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_framebuffer_draw_rectangle (test_fb, pipeline, 0, 0, 10, 10);
test_utils_check_pixel (test_fb, 5, 5, 0xffff00ff);
cogl_object_unref (tex_2d);
cogl_object_unref (tex_3d);
cogl_object_unref (pipeline);
}
void
test_texture_3d (void)
{
TestState state;
state.fb_width = cogl_framebuffer_get_width (test_fb);
state.fb_height = cogl_framebuffer_get_height (test_fb);
cogl_framebuffer_orthographic (test_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");
}
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