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tests/clutter/cogl-tex-polygon: Port to CoglPrimitive

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Instead of using cogl_polygon(), which uses deprecated API, implement
polygon drawing using the CoglPrimitive API family. While the test might
have been used to explicitly test cogl_polygon() it could still be
useful to test the non-deprecated way of rendering polygons.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/935
This commit is contained in:
Jonas Ådahl 2019-11-22 11:13:07 +01:00 committed by Georges Basile Stavracas Neto
parent 8c7ec44681
commit 6f30cf0004
1 changed files with 67 additions and 41 deletions
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106
src/tests/clutter/interactive/test-cogl-tex-polygon.c
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@ -84,85 +84,108 @@ G_DEFINE_TYPE_WITH_PRIVATE (TestCoglbox, test_coglbox, CLUTTER_TYPE_ACTOR);
*--------------------------------------------------*/
static void
test_coglbox_fade_texture (gfloat x1,
gfloat y1,
gfloat x2,
gfloat y2,
gfloat tx1,
gfloat ty1,
gfloat tx2,
gfloat ty2)
test_coglbox_fade_texture (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
float x1,
float y1,
float x2,
float y2,
float tx1,
float ty1,
float tx2,
float ty2)
{
CoglTextureVertex vertices[4];
CoglVertexP3T2C4 vertices[4];
CoglPrimitive *primitive;
int i;
vertices[0].x = x1;
vertices[0].y = y1;
vertices[0].z = 0;
vertices[0].tx = tx1;
vertices[0].ty = ty1;
vertices[0].s = tx1;
vertices[0].t = ty1;
vertices[1].x = x1;
vertices[1].y = y2;
vertices[1].z = 0;
vertices[1].tx = tx1;
vertices[1].ty = ty2;
vertices[1].s = tx1;
vertices[1].t = ty2;
vertices[2].x = x2;
vertices[2].y = y2;
vertices[2].z = 0;
vertices[2].tx = tx2;
vertices[2].ty = ty2;
vertices[2].s = tx2;
vertices[2].t = ty2;
vertices[3].x = x2;
vertices[3].y = y1;
vertices[3].z = 0;
vertices[3].tx = tx2;
vertices[3].ty = ty1;
vertices[3].s = tx2;
vertices[3].t = ty1;
for (i = 0; i < 4; i++)
{
cogl_color_init_from_4ub (&(vertices[i].color),
CoglColor cogl_color;
cogl_color_init_from_4ub (&cogl_color,
255,
255,
255,
((i ^ (i >> 1)) & 1) ? 0 : 128);
cogl_color_premultiply (&(vertices[i].color));
cogl_color_premultiply (&cogl_color);
vertices[i].r = cogl_color_get_red_byte (&cogl_color);
vertices[i].g = cogl_color_get_green_byte (&cogl_color);
vertices[i].b = cogl_color_get_blue_byte (&cogl_color);
vertices[i].a = cogl_color_get_alpha_byte (&cogl_color);
}
cogl_polygon (vertices, 4, TRUE);
primitive =
cogl_primitive_new_p3t2c4 (cogl_framebuffer_get_context (framebuffer),
COGL_VERTICES_MODE_TRIANGLE_FAN,
4,
vertices);
cogl_primitive_draw (primitive, framebuffer, pipeline);
cogl_object_unref (primitive);
}
static void
test_coglbox_triangle_texture (int tex_width,
test_coglbox_triangle_texture (CoglFramebuffer *framebuffer,
CoglHandle material,
int tex_width,
int tex_height,
gfloat x,
gfloat y,
gfloat tx1,
gfloat ty1,
gfloat tx2,
gfloat ty2,
gfloat tx3,
gfloat ty3)
float x,
float y,
float tx1,
float ty1,
float tx2,
float ty2,
float tx3,
float ty3)
{
CoglTextureVertex vertices[3];
CoglVertexP3T2 vertices[3];
CoglPrimitive *primitive;
vertices[0].x = x + tx1 * tex_width;
vertices[0].y = y + ty1 * tex_height;
vertices[0].z = 0;
vertices[0].tx = tx1;
vertices[0].ty = ty1;
vertices[0].s = tx1;
vertices[0].t = ty1;
vertices[1].x = x + tx2 * tex_width;
vertices[1].y = y + ty2 * tex_height;
vertices[1].z = 0;
vertices[1].tx = tx2;
vertices[1].ty = ty2;
vertices[1].s = tx2;
vertices[1].t = ty2;
vertices[2].x = x + tx3 * tex_width;
vertices[2].y = y + ty3 * tex_height;
vertices[2].z = 0;
vertices[2].tx = tx3;
vertices[2].ty = ty3;
vertices[2].s = tx3;
vertices[2].t = ty3;
cogl_polygon (vertices, 3, FALSE);
primitive = cogl_primitive_new_p3t2 (cogl_framebuffer_get_context (framebuffer),
COGL_VERTICES_MODE_TRIANGLE_FAN,
3,
vertices);
cogl_primitive_draw (primitive, framebuffer, material);
cogl_object_unref (primitive);
}
static void
@ -196,7 +219,8 @@ test_coglbox_paint (ClutterActor *self,
cogl_framebuffer_draw_textured_rectangle (framebuffer, material,
0, 0, tex_width, tex_height,
0, 0, 1, 1);
test_coglbox_fade_texture (0, tex_height,
test_coglbox_fade_texture (framebuffer, material,
0, tex_height,
tex_width, (tex_height * 3 / 2),
0.0, 1.0,
1.0, 0.5);
@ -209,12 +233,14 @@ test_coglbox_paint (ClutterActor *self,
cogl_framebuffer_translate (framebuffer, -tex_width / 2 - 10, 0, 0);
/* Draw the texture split into two triangles */
test_coglbox_triangle_texture (tex_width, tex_height,
test_coglbox_triangle_texture (framebuffer, material,
tex_width, tex_height,
0, 0,
0, 0,
0, 1,
1, 1);
test_coglbox_triangle_texture (tex_width, tex_height,
test_coglbox_triangle_texture (framebuffer, material,
tex_width, tex_height,
20, 0,
0, 0,
1, 0,