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tests/cogl: Migrate pixel buffer tests
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2555>
This commit is contained in:
Jonas Ådahl
@ -8,6 +8,7 @@ cogl_tests = [
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'test-just-vertex-shader',
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'test-pipeline-user-matrix',
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'test-pipeline-uniforms',
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'test-pixel-buffer',
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]
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cogl_test_conformance_includes = [
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275
src/tests/cogl/conform/test-pixel-buffer.c
Normal file
275
src/tests/cogl/conform/test-pixel-buffer.c
Normal file
@ -0,0 +1,275 @@
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#include <cogl/cogl.h>
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#include <string.h>
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#include "tests/cogl-test-utils.h"
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#define BITMAP_SIZE 256
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/*
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* Creates a 256 x 256 with image data split into four quadrants. The
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* colours of these in reading order will be: blue, green, cyan,
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* red */
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static void
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generate_bitmap_data (uint8_t *data,
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int stride)
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{
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int y, x;
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for (y = 0; y < BITMAP_SIZE; y++)
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{
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for (x = 0; x < BITMAP_SIZE; x++)
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{
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int color_num = x / (BITMAP_SIZE / 2) + y / (BITMAP_SIZE / 2) * 2 + 1;
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*(data++) = (color_num & 4) ? 255 : 0;
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*(data++) = (color_num & 2) ? 255 : 0;
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*(data++) = (color_num & 1) ? 255 : 0;
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*(data++) = 255;
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}
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data += stride - BITMAP_SIZE * 4;
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}
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}
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static CoglBitmap *
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create_bitmap (void)
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{
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CoglBitmap *bitmap;
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CoglBuffer *buffer;
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bitmap = cogl_bitmap_new_with_size (test_ctx,
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BITMAP_SIZE,
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BITMAP_SIZE,
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COGL_PIXEL_FORMAT_RGBA_8888);
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buffer = cogl_bitmap_get_buffer (bitmap);
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g_assert (cogl_is_pixel_buffer (buffer));
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g_assert (cogl_is_buffer (buffer));
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cogl_buffer_set_update_hint (buffer, COGL_BUFFER_UPDATE_HINT_DYNAMIC);
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g_assert_cmpint (cogl_buffer_get_update_hint (buffer),
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==,
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COGL_BUFFER_UPDATE_HINT_DYNAMIC);
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return bitmap;
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}
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static CoglBitmap *
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create_and_fill_bitmap (void)
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{
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CoglBitmap *bitmap = create_bitmap ();
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CoglBuffer *buffer = cogl_bitmap_get_buffer (bitmap);
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uint8_t *map;
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unsigned int stride;
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stride = cogl_bitmap_get_rowstride (bitmap);
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map = cogl_buffer_map (buffer,
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COGL_BUFFER_ACCESS_WRITE,
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COGL_BUFFER_MAP_HINT_DISCARD);
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g_assert (map);
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generate_bitmap_data (map, stride);
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cogl_buffer_unmap (buffer);
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return bitmap;
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}
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static CoglTexture *
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create_texture_from_bitmap (CoglBitmap *bitmap)
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{
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CoglTexture2D *texture;
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texture = cogl_texture_2d_new_from_bitmap (bitmap);
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g_assert (texture != NULL);
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return texture;
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}
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static CoglPipeline *
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create_pipeline_from_texture (CoglTexture *texture)
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{
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CoglPipeline *pipeline = cogl_pipeline_new (test_ctx);
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cogl_pipeline_set_layer_texture (pipeline, 0, texture);
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cogl_pipeline_set_layer_filters (pipeline,
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0, /* layer_num */
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COGL_PIPELINE_FILTER_NEAREST,
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COGL_PIPELINE_FILTER_NEAREST);
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return pipeline;
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}
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static void
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check_colours (uint32_t color0,
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uint32_t color1,
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uint32_t color2,
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uint32_t color3)
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{
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int fb_width = cogl_framebuffer_get_width (test_fb);
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int fb_height = cogl_framebuffer_get_height (test_fb);
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test_utils_check_region (test_fb,
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1, 1, /* x/y */
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fb_width / 2 - 2, /* width */
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fb_height / 2 - 2, /* height */
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color0);
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test_utils_check_region (test_fb,
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fb_width / 2 + 1, /* x */
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1, /* y */
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fb_width / 2 - 2, /* width */
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fb_height / 2 - 2, /* height */
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color1);
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test_utils_check_region (test_fb,
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1, /* x */
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fb_height / 2 + 1, /* y */
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fb_width / 2 - 2, /* width */
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fb_height / 2 - 2, /* height */
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color2);
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test_utils_check_region (test_fb,
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fb_width / 2 + 1, /* x */
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fb_height / 2 + 1, /* y */
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fb_width / 2 - 2, /* width */
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fb_height / 2 - 2, /* height */
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color3);
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}
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static void
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test_pixel_buffer_map (void)
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{
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CoglBitmap *bitmap = create_and_fill_bitmap ();
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CoglPipeline *pipeline;
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CoglTexture *texture;
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texture = create_texture_from_bitmap (bitmap);
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pipeline = create_pipeline_from_texture (texture);
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cogl_framebuffer_draw_rectangle (test_fb,
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pipeline,
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-1.0f, 1.0f,
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1.0f, -1.0f);
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cogl_object_unref (bitmap);
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cogl_object_unref (texture);
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cogl_object_unref (pipeline);
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check_colours (0x0000ffff,
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0x00ff00ff,
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0x00ffffff,
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0xff0000ff);
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if (cogl_test_verbose ())
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g_print ("OK\n");
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}
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static void
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test_pixel_buffer_set_data (void)
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{
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CoglBitmap *bitmap = create_bitmap ();
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CoglBuffer *buffer = cogl_bitmap_get_buffer (bitmap);
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CoglPipeline *pipeline;
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CoglTexture *texture;
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uint8_t *data;
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unsigned int stride;
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stride = cogl_bitmap_get_rowstride (bitmap);
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data = g_malloc (stride * BITMAP_SIZE);
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generate_bitmap_data (data, stride);
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cogl_buffer_set_data (buffer,
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0, /* offset */
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data,
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stride * (BITMAP_SIZE - 1) +
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BITMAP_SIZE * 4);
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g_free (data);
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texture = create_texture_from_bitmap (bitmap);
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pipeline = create_pipeline_from_texture (texture);
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cogl_framebuffer_draw_rectangle (test_fb,
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pipeline,
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-1.0f, 1.0f,
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1.0f, -1.0f);
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cogl_object_unref (bitmap);
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cogl_object_unref (texture);
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cogl_object_unref (pipeline);
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check_colours (0x0000ffff,
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0x00ff00ff,
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0x00ffffff,
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0xff0000ff);
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if (cogl_test_verbose ())
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g_print ("OK\n");
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}
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static CoglTexture *
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create_white_texture (void)
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{
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CoglTexture2D *texture;
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uint8_t *data = g_malloc (BITMAP_SIZE * BITMAP_SIZE * 4);
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memset (data, 255, BITMAP_SIZE * BITMAP_SIZE * 4);
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texture = cogl_texture_2d_new_from_data (test_ctx,
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BITMAP_SIZE,
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BITMAP_SIZE,
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COGL_PIXEL_FORMAT_RGBA_8888,
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BITMAP_SIZE * 4, /* rowstride */
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data,
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NULL); /* don't catch errors */
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g_free (data);
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return texture;
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}
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static void
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test_pixel_buffer_sub_region (void)
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{
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CoglBitmap *bitmap = create_and_fill_bitmap ();
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CoglPipeline *pipeline;
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CoglTexture *texture;
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texture = create_white_texture ();
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/* Replace the top-right quadrant of the texture with the red part
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* of the bitmap */
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cogl_texture_set_region_from_bitmap (texture,
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BITMAP_SIZE / 2, /* src_x */
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BITMAP_SIZE / 2, /* src_y */
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BITMAP_SIZE / 2, /* dst_x */
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0, /* dst_y */
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BITMAP_SIZE / 2, /* width */
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BITMAP_SIZE / 2, /* height */
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bitmap);
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pipeline = create_pipeline_from_texture (texture);
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cogl_framebuffer_draw_rectangle (test_fb,
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pipeline,
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-1.0f, 1.0f,
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1.0f, -1.0f);
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cogl_object_unref (bitmap);
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cogl_object_unref (texture);
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cogl_object_unref (pipeline);
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check_colours (0xffffffff,
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0xff0000ff,
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0xffffffff,
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0xffffffff);
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if (cogl_test_verbose ())
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g_print ("OK\n");
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}
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COGL_TEST_SUITE (
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g_test_add_func ("/pixel-buffer/map", test_pixel_buffer_map);
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g_test_add_func ("/pixel-buffer/set-data", test_pixel_buffer_set_data);
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g_test_add_func ("/pixel-buffer/sub-region", test_pixel_buffer_sub_region);
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)
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