d62d780a95
Mutter (and libmutter users) are the only users of this version of cogl, and will more or less only use the cogl-1.0, cogl-2.0 and cogl experimental API variants, and having the possibility of having different API versions of the same API depending on what file includes it is error prone and confusing. Lets just remove the possibility of having different versions of the same API. https://bugzilla.gnome.org/show_bug.cgi?id=768977
99 lines
3 KiB
C
99 lines
3 KiB
C
#include <cogl/cogl.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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}
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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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