3881fd3259
This adds experimental 2.0 api replacements for the cogl_rectangle[_*]
functions that don't depend on having a current pipeline set on the
context via cogl_{set,push}_source() or having a current framebuffer set
on the context via cogl_push_framebuffer(). The aim for 2.0 is to switch
away from having a statefull context that affects drawing to having
framebuffer drawing apis that are explicitly passed a framebuffer and
pipeline.
To test this change several of the conformance tests were updated to use
this api instead of cogl_rectangle and
cogl_rectangle_with_texture_coords. Since it's quite laborious going
through all of the conformance tests the opportunity was taken to make
other clean ups in the conformance tests to replace other uses of
1.x api with experimental 2.0 api so long as that didn't affect what was
being tested.
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
#include <cogl/cogl2-experimental.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 *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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gboolean in_point = x >= 1 && x <= 2 && y >= 1 && y <= 2;
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guint32 expected_pixel = in_point ? 0x00ff00ff : 0xff0000ff;
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test_utils_check_pixel (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 (fb);
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int fb_height = cogl_framebuffer_get_height (fb);
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int point_size;
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int x_pos;
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cogl_framebuffer_orthographic (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 (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 (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 (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_framebuffer_draw_primitive (fb,
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pipeline,
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prim);
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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 (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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