mutter/tests/conform/test-pixel-buffer.c

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#include <cogl/cogl.h>
#include <string.h>
#include "test-utils.h"
#define TILE_SIZE 32.0f
enum
{
TILE_MAP,
TILE_SET_DATA,
NB_TILES,
TILE_SET_REGION,
};
typedef struct test_tile
{
guint8 color[4];
gfloat x, y;
CoglBuffer *buffer;
CoglTexture *texture;
} TestTile;
typedef struct _TestState
{
TestTile *tiles;
int width;
int height;
} TestState;
static CoglTexture *
create_texture_from_bitmap (CoglBitmap *bitmap)
{
CoglTexture *texture;
texture = cogl_texture_new_from_bitmap (bitmap,
COGL_TEXTURE_NONE,
COGL_PIXEL_FORMAT_RGBA_8888);
g_assert (texture != NULL);
return texture;
}
static void
create_map_tile (CoglContext *context,
TestTile *tile)
{
CoglBitmap *bitmap;
CoglBuffer *buffer;
guchar *map;
unsigned int i;
unsigned int stride;
guint8 *line;
bitmap = cogl_bitmap_new_with_size (context,
TILE_SIZE,
TILE_SIZE,
COGL_PIXEL_FORMAT_RGBA_8888);
buffer = COGL_BUFFER (cogl_bitmap_get_buffer (bitmap));
stride = cogl_bitmap_get_rowstride (bitmap);
g_assert (cogl_is_pixel_buffer (buffer));
g_assert (cogl_is_buffer (buffer));
cogl_buffer_set_update_hint (buffer, COGL_BUFFER_UPDATE_HINT_DYNAMIC);
g_assert_cmpint (cogl_buffer_get_update_hint (buffer),
==,
COGL_BUFFER_UPDATE_HINT_DYNAMIC);
map = cogl_buffer_map (buffer,
COGL_BUFFER_ACCESS_WRITE,
COGL_BUFFER_MAP_HINT_DISCARD);
g_assert (map);
line = g_alloca (TILE_SIZE * 4);
for (i = 0; i < TILE_SIZE * 4; i += 4)
memcpy (line + i, tile->color, 4);
for (i = 0; i < TILE_SIZE; i++)
memcpy (map + stride * i, line, TILE_SIZE * 4);
cogl_buffer_unmap (buffer);
tile->buffer = cogl_object_ref (buffer);
tile->texture = create_texture_from_bitmap (bitmap);
cogl_object_unref (bitmap);
}
#if 0
static void
create_set_region_tile (CoglContext *context,
TestTile *tile)
{
CoglBitmap *bitmap;
CoglBuffer *buffer;
guint8 bottom_color[4];
unsigned int rowstride = 0;
guchar *data;
unsigned int i;
bitmap = cogl_bitmap_new_with_size (context,
TILE_SIZE,
TILE_SIZE,
COGL_PIXEL_FORMAT_RGBA_8888);
buffer = COGL_BUFFER (cogl_bitmap_get_buffer (bitmap));
rowstride = cogl_bitmap_get_rowstride (bitmap);
g_assert (cogl_is_pixel_buffer (buffer));
g_assert (cogl_is_buffer (buffer));
/* while at it, set/get the hint */
cogl_buffer_set_update_hint (buffer, COGL_BUFFER_UPDATE_HINT_STATIC);
g_assert (cogl_buffer_get_update_hint (buffer) ==
COGL_BUFFER_UPDATE_HINT_STATIC);
data = g_malloc (TILE_SIZE * TILE_SIZE * 4);
/* create a buffer with the data we want to copy to the buffer */
for (i = 0; i < TILE_SIZE * TILE_SIZE * 4; i += 4)
memcpy (data + i, &tile->color, 4);
cogl_pixel_array_set_region (buffer,
data,
TILE_SIZE, TILE_SIZE,
TILE_SIZE,
0, 0);
memcpy (bottom_color, tile->color, 4);
for (i = 0; i < TILE_SIZE / 2; i++)
memcpy (data + i, bottom_color, 4);
cogl_buffer_set_data (buffer, 0, data, TILE_SIZE * TILE_SIZE * 4 / 2);
g_free (data);
tile->buffer = cogl_object_ref (buffer);
tile->texture = create_texture_from_bitmap (bitmap);
cogl_object_unref (bitmap);
}
#endif
static void
create_set_data_tile (CoglContext *context,
TestTile *tile)
{
CoglBitmap *bitmap;
CoglBuffer *buffer;
unsigned int rowstride = 0;
gboolean res;
guchar *data;
unsigned int i;
bitmap = cogl_bitmap_new_with_size (context,
TILE_SIZE,
TILE_SIZE,
COGL_PIXEL_FORMAT_RGBA_8888);
buffer = COGL_BUFFER (cogl_bitmap_get_buffer (bitmap));
rowstride = cogl_bitmap_get_rowstride (bitmap);
g_assert (cogl_is_pixel_buffer (buffer));
g_assert (cogl_is_buffer (buffer));
g_assert_cmpint (cogl_buffer_get_size (buffer), ==, rowstride * TILE_SIZE);
/* create a buffer with the data we want to copy to the buffer */
data = g_malloc (TILE_SIZE * TILE_SIZE * 4);
for (i = 0; i < TILE_SIZE * TILE_SIZE * 4; i += 4)
memcpy (data + i, tile->color, 4);
/* FIXME: this doesn't consider the rowstride */
res = cogl_buffer_set_data (buffer, 0, data, TILE_SIZE * TILE_SIZE * 4);
g_assert (res);
g_free (data);
tile->buffer = cogl_object_ref (buffer);
tile->texture = create_texture_from_bitmap (bitmap);
cogl_object_unref (bitmap);
}
static void
draw_frame (TestState *state)
{
unsigned int i;
/* Paint the textures */
for (i = 0; i < NB_TILES; i++)
{
cogl_set_source_texture (state->tiles[i].texture);
cogl_rectangle (state->tiles[i].x,
state->tiles[i].y,
state->tiles[i].x + TILE_SIZE,
state->tiles[i].y + TILE_SIZE);
}
}
static void
validate_tile (TestState *state,
TestTile *tile)
{
test_utils_check_region (tile->x, tile->y,
TILE_SIZE, TILE_SIZE,
(tile->color[0] << 24) |
(tile->color[1] << 16) |
(tile->color[2] << 8) |
0xff);
}
static void
validate_result (TestState *state)
{
unsigned int i;
for (i = 0; i < NB_TILES; i++)
validate_tile (state, &state->tiles[i]);
}
void
test_cogl_pixel_buffer (TestUtilsGTestFixture *fixture,
void *data)
{
TestUtilsSharedState *shared_state = data;
TestState state;
int i;
static TestTile tiles[NB_TILES] =
{
/* color x y buffer tex */
/* MAP */
{ { 0xff, 0x00, 0x00, 0xff }, 0.0f, 0.0f, NULL, NULL },
#if 0
/* SET_REGION */
{ { 0x7e, 0x7e, 0xff, 0x7e }, 0.0f, TILE_SIZE, NULL, NULL },
#endif
/* SET_DATA */
{ { 0x7e, 0xff, 0x7e, 0xff }, 0.0f, TILE_SIZE, NULL, NULL }
};
state.width = cogl_framebuffer_get_width (shared_state->fb);
state.height = cogl_framebuffer_get_height (shared_state->fb);
cogl_ortho (0, state.width, /* left, right */
state.height, 0, /* bottom, top */
-1, 100 /* z near, far */);
create_map_tile (shared_state->ctx, &tiles[TILE_MAP]);
#if 0
create_set_region_tile (shared_state->ctx, &tiles[TILE_SET_REGION]);
#endif
create_set_data_tile (shared_state->ctx, &tiles[TILE_SET_DATA]);
state.tiles = tiles;
draw_frame (&state);
validate_result (&state);
for (i = 0; i < NB_TILES; i++)
{
cogl_object_unref (state.tiles[i].buffer);
cogl_object_unref (state.tiles[i].texture);
}
if (cogl_test_verbose ())
g_print ("OK\n");
}