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36cfb60307
COGLenum, COGLint and COGLuint which were simply typedefs for GL{enum,int,uint}
have been removed from the API and replaced with specialised enum typedefs, int
and unsigned int. These were causing problems for generating bindings and also
considered poor style.
The cogl texture filter defines CGL_NEAREST and CGL_LINEAR etc are now replaced
by a namespaced typedef 'CoglTextureFilter' so they should be replaced with
COGL_TEXTURE_FILTER_NEAREST and COGL_TEXTURE_FILTER_LINEAR etc.
The shader type defines CGL_VERTEX_SHADER and CGL_FRAGMENT_SHADER are handled by
a CoglShaderType typedef and should be replaced with COGL_SHADER_TYPE_VERTEX and
COGL_SHADER_TYPE_FRAGMENT.
cogl_shader_get_parameteriv has been replaced by cogl_shader_get_type and
cogl_shader_is_compiled. More getters can be added later if desired.
410 lines
11 KiB
C
410 lines
11 KiB
C
#include <config.h>
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#include <glib.h>
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#include <gmodule.h>
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#include <stdlib.h>
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#include <clutter/clutter.h>
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#include <cogl/cogl.h>
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/* Coglbox declaration
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*--------------------------------------------------*/
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G_BEGIN_DECLS
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#define TEST_TYPE_COGLBOX test_coglbox_get_type()
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#define TEST_COGLBOX(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), \
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TEST_TYPE_COGLBOX, TestCoglboxClass))
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#define TEST_COGLBOX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), \
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TEST_TYPE_COGLBOX, TestCoglboxClass))
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#define TEST_IS_COGLBOX(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
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TEST_TYPE_COGLBOX))
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#define TEST_IS_COGLBOX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), \
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TEST_TYPE_COGLBOX))
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#define TEST_COGLBOX_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), \
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TEST_TYPE_COGLBOX, TestCoglboxClass))
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typedef struct _TestCoglbox TestCoglbox;
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typedef struct _TestCoglboxClass TestCoglboxClass;
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typedef struct _TestCoglboxPrivate TestCoglboxPrivate;
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struct _TestCoglbox
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{
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ClutterActor parent;
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/*< private >*/
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TestCoglboxPrivate *priv;
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};
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struct _TestCoglboxClass
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{
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ClutterActorClass parent_class;
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/* padding for future expansion */
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void (*_test_coglbox1) (void);
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void (*_test_coglbox2) (void);
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void (*_test_coglbox3) (void);
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void (*_test_coglbox4) (void);
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};
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static GType test_coglbox_get_type (void) G_GNUC_CONST;
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G_END_DECLS
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/* Coglbox private declaration
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*--------------------------------------------------*/
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G_DEFINE_TYPE (TestCoglbox, test_coglbox, CLUTTER_TYPE_ACTOR);
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#define TEST_COGLBOX_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE ((obj), TEST_TYPE_COGLBOX, TestCoglboxPrivate))
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struct _TestCoglboxPrivate
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{
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CoglHandle sliced_tex, not_sliced_tex;
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gint frame;
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gboolean use_sliced;
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gboolean use_linear_filtering;
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};
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/* Coglbox implementation
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*--------------------------------------------------*/
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static void
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test_coglbox_fade_texture (CoglHandle tex_id,
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gfloat x1,
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gfloat y1,
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gfloat x2,
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gfloat y2,
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gfloat tx1,
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gfloat ty1,
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gfloat tx2,
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gfloat ty2)
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{
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CoglTextureVertex vertices[4];
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int i;
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vertices[0].x = x1;
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vertices[0].y = y1;
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vertices[0].z = 0;
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vertices[0].tx = tx1;
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vertices[0].ty = ty1;
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vertices[1].x = x1;
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vertices[1].y = y2;
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vertices[1].z = 0;
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vertices[1].tx = tx1;
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vertices[1].ty = ty2;
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vertices[2].x = x2;
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vertices[2].y = y2;
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vertices[2].z = 0;
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vertices[2].tx = tx2;
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vertices[2].ty = ty2;
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vertices[3].x = x2;
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vertices[3].y = y1;
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vertices[3].z = 0;
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vertices[3].tx = tx2;
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vertices[3].ty = ty1;
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for (i = 0; i < 4; i++)
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{
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cogl_color_set_from_4ub (&(vertices[i].color),
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255,
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255,
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255,
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((i ^ (i >> 1)) & 1) ? 0 : 128);
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}
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cogl_set_source_texture (tex_id);
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cogl_polygon (vertices, 4, TRUE);
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cogl_set_source_color4ub (255, 255, 255, 255);
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}
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static void
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test_coglbox_triangle_texture (CoglHandle tex_id,
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gfloat x,
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gfloat y,
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gfloat tx1,
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gfloat ty1,
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gfloat tx2,
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gfloat ty2,
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gfloat tx3,
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gfloat ty3)
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{
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CoglTextureVertex vertices[3];
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int tex_width = cogl_texture_get_width (tex_id);
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int tex_height = cogl_texture_get_height (tex_id);
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vertices[0].x = x + tx1 * tex_width;
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vertices[0].y = y + ty1 * tex_height;
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vertices[0].z = 0;
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vertices[0].tx = tx1;
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vertices[0].ty = ty1;
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vertices[1].x = x + tx2 * tex_width;
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vertices[1].y = y + ty2 * tex_height;
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vertices[1].z = 0;
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vertices[1].tx = tx2;
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vertices[1].ty = ty2;
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vertices[2].x = x + tx3 * tex_width;
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vertices[2].y = y + ty3 * tex_height;
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vertices[2].z = 0;
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vertices[2].tx = tx3;
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vertices[2].ty = ty3;
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cogl_set_source_texture (tex_id);
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cogl_polygon (vertices, 3, FALSE);
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}
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static void
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test_coglbox_paint (ClutterActor *self)
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{
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TestCoglboxPrivate *priv = TEST_COGLBOX_GET_PRIVATE (self);
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CoglHandle tex_handle = priv->use_sliced ? priv->sliced_tex
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: priv->not_sliced_tex;
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int tex_width = cogl_texture_get_width (tex_handle);
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int tex_height = cogl_texture_get_height (tex_handle);
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cogl_texture_set_filters (tex_handle,
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priv->use_linear_filtering
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? COGL_TEXTURE_FILTER_LINEAR :
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COGL_TEXTURE_FILTER_NEAREST,
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priv->use_linear_filtering
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? COGL_TEXTURE_FILTER_LINEAR :
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COGL_TEXTURE_FILTER_NEAREST);
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cogl_push_matrix ();
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cogl_translate (tex_width / 2, 0, 0);
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cogl_rotate (priv->frame, 0, 1, 0);
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cogl_translate (-tex_width / 2, 0, 0);
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/* Draw a hand and refect it */
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cogl_set_source_texture (tex_handle);
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cogl_rectangle_with_texture_coords (0, 0, tex_width, tex_height,
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0, 0, 1, 1);
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test_coglbox_fade_texture (tex_handle,
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0, tex_height,
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tex_width, (tex_height * 3 / 2),
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0.0, 1.0,
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1.0, 0.5);
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cogl_pop_matrix ();
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cogl_push_matrix ();
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cogl_translate (tex_width * 3 / 2 + 60, 0, 0);
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cogl_rotate (priv->frame, 0, 1, 0);
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cogl_translate (-tex_width / 2 - 10, 0, 0);
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/* Draw the texture split into two triangles */
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test_coglbox_triangle_texture (tex_handle,
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0, 0,
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0, 0,
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0, 1,
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1, 1);
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test_coglbox_triangle_texture (tex_handle,
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20, 0,
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0, 0,
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1, 0,
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1, 1);
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cogl_pop_matrix ();
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}
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static void
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test_coglbox_finalize (GObject *object)
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{
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G_OBJECT_CLASS (test_coglbox_parent_class)->finalize (object);
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}
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static void
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test_coglbox_dispose (GObject *object)
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{
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TestCoglboxPrivate *priv;
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priv = TEST_COGLBOX_GET_PRIVATE (object);
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cogl_handle_unref (priv->not_sliced_tex);
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cogl_handle_unref (priv->sliced_tex);
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G_OBJECT_CLASS (test_coglbox_parent_class)->dispose (object);
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}
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static void
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test_coglbox_init (TestCoglbox *self)
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{
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TestCoglboxPrivate *priv;
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GError *error = NULL;
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self->priv = priv = TEST_COGLBOX_GET_PRIVATE (self);
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priv->use_linear_filtering = FALSE;
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priv->use_sliced = FALSE;
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priv->sliced_tex =
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cogl_texture_new_from_file ("redhand.png", 10,
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COGL_TEXTURE_NONE,
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COGL_PIXEL_FORMAT_ANY,
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&error);
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if (priv->sliced_tex == COGL_INVALID_HANDLE)
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{
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if (error)
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{
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g_warning ("Texture loading failed: %s", error->message);
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g_error_free (error);
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error = NULL;
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}
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else
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g_warning ("Texture loading failed: <unknown>");
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}
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priv->not_sliced_tex =
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cogl_texture_new_from_file ("redhand.png", -1,
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COGL_TEXTURE_NONE,
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COGL_PIXEL_FORMAT_ANY,
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&error);
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if (priv->not_sliced_tex == COGL_INVALID_HANDLE)
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{
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if (error)
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{
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g_warning ("Texture loading failed: %s", error->message);
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g_error_free (error);
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}
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else
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g_warning ("Texture loading failed: <unknown>");
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}
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}
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static void
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test_coglbox_class_init (TestCoglboxClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
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gobject_class->finalize = test_coglbox_finalize;
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gobject_class->dispose = test_coglbox_dispose;
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actor_class->paint = test_coglbox_paint;
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g_type_class_add_private (gobject_class, sizeof (TestCoglboxPrivate));
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}
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static ClutterActor*
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test_coglbox_new (void)
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{
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return g_object_new (TEST_TYPE_COGLBOX, NULL);
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}
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static void
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frame_cb (ClutterTimeline *timeline,
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gint frame_num,
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gpointer data)
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{
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TestCoglboxPrivate *priv = TEST_COGLBOX_GET_PRIVATE (data);
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priv->frame = frame_num;
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clutter_actor_queue_redraw (CLUTTER_ACTOR (data));
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}
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static void
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update_toggle_text (ClutterText *button, gboolean val)
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{
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clutter_text_set_text (button, val ? "Enabled" : "Disabled");
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}
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static gboolean
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on_toggle_click (ClutterActor *button, ClutterEvent *event,
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gboolean *toggle_val)
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{
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update_toggle_text (CLUTTER_TEXT (button), *toggle_val = !*toggle_val);
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return TRUE;
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}
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static ClutterActor *
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make_toggle (const char *label_text, gboolean *toggle_val)
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{
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ClutterActor *group = clutter_group_new ();
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ClutterActor *label = clutter_text_new_with_text ("Sans 14", label_text);
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ClutterActor *button = clutter_text_new_with_text ("Sans 14", "");
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clutter_actor_set_reactive (button, TRUE);
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update_toggle_text (CLUTTER_TEXT (button), *toggle_val);
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clutter_actor_set_position (button, clutter_actor_get_width (label) + 10, 0);
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clutter_container_add (CLUTTER_CONTAINER (group), label, button, NULL);
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g_signal_connect (button, "button-press-event", G_CALLBACK (on_toggle_click),
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toggle_val);
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return group;
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}
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G_MODULE_EXPORT int
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test_cogl_tex_polygon_main (int argc, char *argv[])
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{
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ClutterActor *stage;
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ClutterActor *coglbox;
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ClutterActor *filtering_toggle;
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ClutterActor *slicing_toggle;
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ClutterActor *note;
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ClutterTimeline *timeline;
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ClutterColor blue = { 0x30, 0x30, 0xff, 0xff };
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clutter_init (&argc, &argv);
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/* Stage */
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stage = clutter_stage_get_default ();
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clutter_stage_set_color (CLUTTER_STAGE (stage), &blue);
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clutter_actor_set_size (stage, 640, 480);
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clutter_stage_set_title (CLUTTER_STAGE (stage), "Cogl Test");
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/* Cogl Box */
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coglbox = test_coglbox_new ();
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), coglbox);
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/* Timeline for animation */
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timeline = clutter_timeline_new (360, 60); /* num frames, fps */
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g_object_set (timeline, "loop", TRUE, NULL); /* have it loop */
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g_signal_connect (timeline, "new-frame", G_CALLBACK (frame_cb), coglbox);
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clutter_timeline_start (timeline);
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/* Labels for toggling settings */
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slicing_toggle = make_toggle ("Texture slicing: ",
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&(TEST_COGLBOX_GET_PRIVATE (coglbox)
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->use_sliced));
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clutter_actor_set_position (slicing_toggle, 0,
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clutter_actor_get_height (stage)
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- clutter_actor_get_height (slicing_toggle));
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filtering_toggle = make_toggle ("Linear filtering: ",
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&(TEST_COGLBOX_GET_PRIVATE (coglbox)
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->use_linear_filtering));
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clutter_actor_set_position (filtering_toggle, 0,
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clutter_actor_get_y (slicing_toggle)
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- clutter_actor_get_height (filtering_toggle));
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note = clutter_text_new_with_text ("Sans 10", "<- Click to change");
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clutter_actor_set_position (note,
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clutter_actor_get_width (filtering_toggle) + 10,
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(clutter_actor_get_height (stage)
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+ clutter_actor_get_y (filtering_toggle)) / 2
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- clutter_actor_get_height (note) / 2);
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clutter_container_add (CLUTTER_CONTAINER (stage),
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slicing_toggle,
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filtering_toggle,
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note,
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NULL);
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clutter_actor_show (stage);
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clutter_main ();
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return 0;
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}
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