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#include <cogl/cogl.h>
#include <string.h>
#include "test-utils.h"
#define BITMAP_SIZE 256
/*
* Creates a 256 x 256 with image data split into four quadrants. The
* colours of these in reading order will be: blue, green, cyan,
* red */
static void
generate_bitmap_data (uint8_t *data,
int stride)
{
int y, x;
for (y = 0; y < BITMAP_SIZE; y++)
{
for (x = 0; x < BITMAP_SIZE; x++)
{
int color_num = x / (BITMAP_SIZE / 2) + y / (BITMAP_SIZE / 2) * 2 + 1;
*(data++) = (color_num & 4) ? 255 : 0;
*(data++) = (color_num & 2) ? 255 : 0;
*(data++) = (color_num & 1) ? 255 : 0;
*(data++) = 255;
}
data += stride - BITMAP_SIZE * 4;
}
}
static CoglBitmap *
create_bitmap (void)
{
CoglBitmap *bitmap;
CoglBuffer *buffer;
bitmap = cogl_bitmap_new_with_size (test_ctx,
BITMAP_SIZE,
BITMAP_SIZE,
COGL_PIXEL_FORMAT_RGBA_8888);
buffer = cogl_bitmap_get_buffer (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);
return bitmap;
}
static CoglBitmap *
create_and_fill_bitmap (void)
{
CoglBitmap *bitmap = create_bitmap ();
CoglBuffer *buffer = cogl_bitmap_get_buffer (bitmap);
uint8_t *map;
unsigned int stride;
stride = cogl_bitmap_get_rowstride (bitmap);
map = cogl_buffer_map (buffer,
COGL_BUFFER_ACCESS_WRITE,
COGL_BUFFER_MAP_HINT_DISCARD);
g_assert (map);
generate_bitmap_data (map, stride);
cogl_buffer_unmap (buffer);
return bitmap;
}
static CoglTexture *
create_texture_from_bitmap (CoglBitmap *bitmap)
{
CoglTexture2D *texture;
texture = cogl_texture_2d_new_from_bitmap (bitmap);
g_assert (texture != NULL);
return texture;
}
static CoglPipeline *
create_pipeline_from_texture (CoglTexture *texture)
{
CoglPipeline *pipeline = cogl_pipeline_new (test_ctx);
cogl_pipeline_set_layer_texture (pipeline, 0, texture);
cogl_pipeline_set_layer_filters (pipeline,
0, /* layer_num */
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
return pipeline;
}
static void
check_colours (uint32_t color0,
uint32_t color1,
uint32_t color2,
uint32_t color3)
{
int fb_width = cogl_framebuffer_get_width (test_fb);
int fb_height = cogl_framebuffer_get_height (test_fb);
test_utils_check_region (test_fb,
1, 1, /* x/y */
fb_width / 2 - 2, /* width */
fb_height / 2 - 2, /* height */
color0);
test_utils_check_region (test_fb,
fb_width / 2 + 1, /* x */
1, /* y */
fb_width / 2 - 2, /* width */
fb_height / 2 - 2, /* height */
color1);
test_utils_check_region (test_fb,
1, /* x */
fb_height / 2 + 1, /* y */
fb_width / 2 - 2, /* width */
fb_height / 2 - 2, /* height */
color2);
test_utils_check_region (test_fb,
fb_width / 2 + 1, /* x */
fb_height / 2 + 1, /* y */
fb_width / 2 - 2, /* width */
fb_height / 2 - 2, /* height */
color3);
}
void
test_pixel_buffer_map (void)
{
CoglBitmap *bitmap = create_and_fill_bitmap ();
CoglPipeline *pipeline;
CoglTexture *texture;
texture = create_texture_from_bitmap (bitmap);
pipeline = create_pipeline_from_texture (texture);
cogl_framebuffer_draw_rectangle (test_fb,
pipeline,
-1.0f, 1.0f,
1.0f, -1.0f);
cogl_object_unref (bitmap);
cogl_object_unref (texture);
cogl_object_unref (pipeline);
check_colours (0x0000ffff,
0x00ff00ff,
0x00ffffff,
0xff0000ff);
if (cogl_test_verbose ())
g_print ("OK\n");
}
void
test_pixel_buffer_set_data (void)
{
CoglBitmap *bitmap = create_bitmap ();
CoglBuffer *buffer = cogl_bitmap_get_buffer (bitmap);
CoglPipeline *pipeline;
CoglTexture *texture;
uint8_t *data;
unsigned int stride;
stride = cogl_bitmap_get_rowstride (bitmap);
data = g_malloc (stride * BITMAP_SIZE);
generate_bitmap_data (data, stride);
cogl_buffer_set_data (buffer,
0, /* offset */
data,
stride * (BITMAP_SIZE - 1) +
BITMAP_SIZE * 4);
g_free (data);
texture = create_texture_from_bitmap (bitmap);
pipeline = create_pipeline_from_texture (texture);
cogl_framebuffer_draw_rectangle (test_fb,
pipeline,
-1.0f, 1.0f,
1.0f, -1.0f);
cogl_object_unref (bitmap);
cogl_object_unref (texture);
cogl_object_unref (pipeline);
check_colours (0x0000ffff,
0x00ff00ff,
0x00ffffff,
0xff0000ff);
if (cogl_test_verbose ())
g_print ("OK\n");
}
static CoglTexture *
create_white_texture (void)
{
CoglTexture2D *texture;
uint8_t *data = g_malloc (BITMAP_SIZE * BITMAP_SIZE * 4);
memset (data, 255, BITMAP_SIZE * BITMAP_SIZE * 4);
texture = cogl_texture_2d_new_from_data (test_ctx,
BITMAP_SIZE,
BITMAP_SIZE,
COGL_PIXEL_FORMAT_RGBA_8888,
BITMAP_SIZE * 4, /* rowstride */
data,
NULL); /* don't catch errors */
g_free (data);
return texture;
}
void
test_pixel_buffer_sub_region (void)
{
CoglBitmap *bitmap = create_and_fill_bitmap ();
CoglPipeline *pipeline;
CoglTexture *texture;
texture = create_white_texture ();
/* Replace the top-right quadrant of the texture with the red part
* of the bitmap */
cogl_texture_set_region_from_bitmap (texture,
BITMAP_SIZE / 2, /* src_x */
BITMAP_SIZE / 2, /* src_y */
BITMAP_SIZE / 2, /* dst_x */
0, /* dst_y */
BITMAP_SIZE / 2, /* width */
BITMAP_SIZE / 2, /* height */
bitmap);
pipeline = create_pipeline_from_texture (texture);
cogl_framebuffer_draw_rectangle (test_fb,
pipeline,
-1.0f, 1.0f,
1.0f, -1.0f);
cogl_object_unref (bitmap);
cogl_object_unref (texture);
cogl_object_unref (pipeline);
check_colours (0xffffffff,
0xff0000ff,
0xffffffff,
0xffffffff);
if (cogl_test_verbose ())
g_print ("OK\n");
}
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