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5c3ec27b4b
Commit 25f416c13d added additional compilation warnings, including
-Werror=return-type. There are several places where this results
in build failures if `g_assert_not_reached()` is disabled at compile
time and the compiler misses a return value.
https://gitlab.gnome.org/GNOME/mutter/issues/447
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
#include <cogl/cogl.h>
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#include "test-declarations.h"
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#include "test-utils.h"
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/* This test assumes the GL driver supports point sizes up to 16
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pixels. Cogl should probably have some way of querying the size so
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we start from that instead */
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#define MAX_POINT_SIZE 16
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/* The size of the area that we'll paint each point in */
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#define POINT_BOX_SIZE (MAX_POINT_SIZE * 2)
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static int
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calc_coord_offset (int pos, int pos_index, int point_size)
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{
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switch (pos_index)
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{
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case 0: return pos - point_size / 2 - 2;
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case 1: return pos - point_size / 2 + 2;
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case 2: return pos + point_size / 2 - 2;
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case 3: return pos + point_size / 2 + 2;
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}
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g_assert_not_reached ();
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return 0;
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}
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static void
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verify_point_size (CoglFramebuffer *test_fb,
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int x_pos,
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int y_pos,
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int point_size)
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{
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int y, x;
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for (y = 0; y < 4; y++)
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for (x = 0; x < 4; x++)
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{
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CoglBool in_point = x >= 1 && x <= 2 && y >= 1 && y <= 2;
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uint32_t expected_pixel = in_point ? 0x00ff00ff : 0xff0000ff;
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test_utils_check_pixel (test_fb,
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calc_coord_offset (x_pos, x, point_size),
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calc_coord_offset (y_pos, y, point_size),
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expected_pixel);
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}
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}
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void
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test_point_size (void)
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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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int point_size;
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int x_pos;
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cogl_framebuffer_orthographic (test_fb,
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0, 0, /* x_1, y_1 */
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fb_width, /* x_2 */
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fb_height /* y_2 */,
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-1, 100 /* near/far */);
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cogl_framebuffer_clear4f (test_fb,
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COGL_BUFFER_BIT_COLOR,
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1.0f, 0.0f, 0.0f, 1.0f);
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/* Try a rendering a single point with a few different point
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sizes */
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for (x_pos = 0, point_size = MAX_POINT_SIZE;
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point_size >= 4;
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x_pos += POINT_BOX_SIZE, point_size /= 2)
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{
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CoglPipeline *pipeline = cogl_pipeline_new (test_ctx);
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CoglVertexP2 point = { x_pos + POINT_BOX_SIZE / 2,
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POINT_BOX_SIZE / 2 };
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CoglPrimitive *prim =
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cogl_primitive_new_p2 (test_ctx,
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COGL_VERTICES_MODE_POINTS,
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1, /* n_vertices */
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&point);
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cogl_pipeline_set_point_size (pipeline, point_size);
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cogl_pipeline_set_color4ub (pipeline, 0, 255, 0, 255);
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cogl_primitive_draw (prim, test_fb, pipeline);
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cogl_object_unref (prim);
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cogl_object_unref (pipeline);
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}
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/* Verify all of the points where drawn at the right size */
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for (x_pos = 0, point_size = MAX_POINT_SIZE;
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point_size >= 4;
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x_pos += POINT_BOX_SIZE, point_size /= 2)
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verify_point_size (test_fb,
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x_pos + POINT_BOX_SIZE / 2,
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POINT_BOX_SIZE / 2,
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point_size);
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if (cogl_test_verbose ())
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g_print ("OK\n");
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}
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