CoglHandle
_st_create_shadow_material_from_actor (StShadow *shadow_spec,
ClutterActor *actor)
{
CoglHandle shadow_material = COGL_INVALID_HANDLE;
if (CLUTTER_IS_TEXTURE (actor))
{
CoglHandle texture;
texture = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (actor));
shadow_material = _st_create_shadow_material (shadow_spec, texture);
}
else
{
CoglHandle buffer, offscreen;
ClutterActorBox box;
CoglColor clear_color;
float width, height;
clutter_actor_get_allocation_box (actor, &box);
clutter_actor_box_get_size (&box, &width, &height);
if (width == 0 || height == 0)
return COGL_INVALID_HANDLE;
buffer = st_cogl_texture_new_with_size_wrapper (width, height,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_ANY);
if (buffer == COGL_INVALID_HANDLE)
return COGL_INVALID_HANDLE;
offscreen = cogl_offscreen_new_to_texture (buffer);
if (offscreen == COGL_INVALID_HANDLE)
{
cogl_handle_unref (buffer);
return COGL_INVALID_HANDLE;
}
cogl_color_set_from_4ub (&clear_color, 0, 0, 0, 0);
cogl_push_framebuffer (offscreen);
cogl_clear (&clear_color, COGL_BUFFER_BIT_COLOR);
cogl_translate (-box.x1, -box.y1, 0);
cogl_ortho (0, width, height, 0, 0, 1.0);
clutter_actor_paint (actor);
cogl_pop_framebuffer ();
cogl_handle_unref (offscreen);
shadow_material = _st_create_shadow_material (shadow_spec, buffer);
cogl_handle_unref (buffer);
}
return shadow_material;
}
void
_example_draw_at (int x, int y)
{
cogl_set_source_color4ub ('\xFF', '1', '1', 255);
cogl_ortho (0, 64, 0, 64, -5, 5);
CoglMatrix idmtx;
cogl_matrix_init_identity (&idmtx);
cogl_set_modelview_matrix (&idmtx);
cogl_rectangle (x+1, y+1, x-1, y-1);
cogl_flush ();
}
void
test_cogl_depth_test (TestUtilsGTestFixture *fixture,
void *data)
{
TestUtilsSharedState *shared_state = data;
TestState state;
cogl_ortho (0, cogl_framebuffer_get_width (shared_state->fb), /* left, right */
cogl_framebuffer_get_height (shared_state->fb), 0, /* bottom, top */
-1, 100 /* z near, far */);
paint (&state);
if (g_test_verbose ())
g_print ("OK\n");
}
void
mai_node_draw_recursive (MaiNode *self)
{
CoglMatrix initial_mtx;
cogl_matrix_init_identity (&initial_mtx);
cogl_set_modelview_matrix (&initial_mtx);
cogl_set_source_color4ub ('\x1', '\x1', '\xFF', 255);
cogl_set_source_texture (g_testtex);
cogl_ortho (0, 64, 0, 64, -1, 1);
cogl_matrix_translate (&initial_mtx, 20.0f, 20.0f, 0.0f);
cogl_matrix_scale (&initial_mtx, 5.0f, 5.0f, 1.0f);
cogl_matrix_rotate(&initial_mtx, -90.0f, 1.0f, 0.0f, 0.0f);
_mai_node_draw_recursive (self, &initial_mtx);
cogl_flush ();
}
void
test_cogl_pipeline_uniforms (TestUtilsGTestFixture *fixture,
void *user_data)
{
TestUtilsSharedState *shared_state = user_data;
/* If shaders aren't supported then we can't run the test */
if (cogl_features_available (COGL_FEATURE_SHADERS_GLSL))
{
TestState state;
init_state (&state);
cogl_ortho (/* left, right */
0, cogl_framebuffer_get_width (shared_state->fb),
/* bottom, top */
cogl_framebuffer_get_height (shared_state->fb), 0,
/* z near, far */
-1, 100);
paint (&state);
validate_result ();
/* Try the test again after querying the location of a large
number of uniforms. This should verify that the bitmasks
still work even if they have to allocate a separate array to
store the bits */
init_long_pipeline_state (&state);
paint (&state);
paint_long_pipeline (&state);
validate_result ();
validate_long_pipeline_result ();
destroy_state (&state);
if (g_test_verbose ())
g_print ("OK\n");
}
else if (g_test_verbose ())
g_print ("Skipping\n");
}
static gboolean
setup_framebuffers (StThemeNodeTransition *transition,
const ClutterActorBox *allocation)
{
StThemeNodeTransitionPrivate *priv = transition->priv;
CoglColor clear_color = { 0, 0, 0, 0 };
guint width, height;
/* template material to avoid unnecessary shader compilation */
static CoglHandle material_template = COGL_INVALID_HANDLE;
width = priv->offscreen_box.x2 - priv->offscreen_box.x1;
height = priv->offscreen_box.y2 - priv->offscreen_box.y1;
g_return_val_if_fail (width > 0, FALSE);
g_return_val_if_fail (height > 0, FALSE);
if (priv->old_texture)
cogl_handle_unref (priv->old_texture);
priv->old_texture = cogl_texture_new_with_size (width, height,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_ANY);
if (priv->new_texture)
cogl_handle_unref (priv->new_texture);
priv->new_texture = cogl_texture_new_with_size (width, height,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_ANY);
g_return_val_if_fail (priv->old_texture != COGL_INVALID_HANDLE, FALSE);
g_return_val_if_fail (priv->new_texture != COGL_INVALID_HANDLE, FALSE);
if (priv->old_offscreen)
cogl_handle_unref (priv->old_offscreen);
priv->old_offscreen = cogl_offscreen_new_to_texture (priv->old_texture);
if (priv->new_offscreen)
cogl_handle_unref (priv->new_offscreen);
priv->new_offscreen = cogl_offscreen_new_to_texture (priv->new_texture);
g_return_val_if_fail (priv->old_offscreen != COGL_INVALID_HANDLE, FALSE);
g_return_val_if_fail (priv->new_offscreen != COGL_INVALID_HANDLE, FALSE);
if (priv->material == NULL)
{
if (G_UNLIKELY (material_template == COGL_INVALID_HANDLE))
{
material_template = cogl_material_new ();
cogl_material_set_layer_combine (material_template, 0,
"RGBA = REPLACE (TEXTURE)",
NULL);
cogl_material_set_layer_combine (material_template, 1,
"RGBA = INTERPOLATE (PREVIOUS, "
"TEXTURE, "
"CONSTANT[A])",
NULL);
cogl_material_set_layer_combine (material_template, 2,
"RGBA = MODULATE (PREVIOUS, "
"PRIMARY)",
NULL);
}
priv->material = cogl_material_copy (material_template);
}
cogl_material_set_layer (priv->material, 0, priv->new_texture);
cogl_material_set_layer (priv->material, 1, priv->old_texture);
cogl_push_framebuffer (priv->old_offscreen);
cogl_clear (&clear_color, COGL_BUFFER_BIT_COLOR);
cogl_ortho (priv->offscreen_box.x1, priv->offscreen_box.x2,
priv->offscreen_box.y2, priv->offscreen_box.y1,
0.0, 1.0);
st_theme_node_paint (priv->old_theme_node, allocation, 255);
cogl_pop_framebuffer ();
cogl_push_framebuffer (priv->new_offscreen);
cogl_clear (&clear_color, COGL_BUFFER_BIT_COLOR);
cogl_ortho (priv->offscreen_box.x1, priv->offscreen_box.x2,
priv->offscreen_box.y2, priv->offscreen_box.y1,
0.0, 1.0);
st_theme_node_paint (priv->new_theme_node, allocation, 255);
cogl_pop_framebuffer ();
return TRUE;
}
static void
paint_test_backface_culling (TestState *state)
{
int draw_num;
CoglPipeline *base_pipeline = cogl_pipeline_new ();
CoglColor clear_color;
cogl_ortho (0, state->width, /* left, right */
state->height, 0, /* bottom, top */
-1, 100 /* z near, far */);
cogl_color_init_from_4ub (&clear_color, 0x00, 0x00, 0x00, 0xff);
cogl_clear (&clear_color, COGL_BUFFER_BIT_COLOR | COGL_BUFFER_BIT_STENCIL);
cogl_pipeline_set_layer_texture (base_pipeline, 0, state->texture);
cogl_pipeline_set_layer_filters (base_pipeline, 0,
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
/* Render the scene sixteen times to test all of the combinations of
cull face mode, legacy state and winding orders */
for (draw_num = 0; draw_num < 16; draw_num++)
{
float x1 = 0, x2, y1 = 0, y2 = (float)(TEXTURE_RENDER_SIZE);
CoglTextureVertex verts[4];
CoglPipeline *pipeline;
cogl_push_matrix ();
cogl_translate (0, TEXTURE_RENDER_SIZE * draw_num, 0);
pipeline = cogl_pipeline_copy (base_pipeline);
cogl_set_backface_culling_enabled (USE_LEGACY_STATE (draw_num));
cogl_pipeline_set_front_face_winding (pipeline, FRONT_WINDING (draw_num));
cogl_pipeline_set_cull_face_mode (pipeline, CULL_FACE_MODE (draw_num));
cogl_push_source (pipeline);
memset (verts, 0, sizeof (verts));
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
/* Draw a front-facing texture */
cogl_rectangle (x1, y1, x2, y2);
x1 = x2;
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
/* Draw a front-facing texture with flipped texcoords */
cogl_rectangle_with_texture_coords (x1, y1, x2, y2,
1.0, 0.0, 0.0, 1.0);
x1 = x2;
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
/* Draw a back-facing texture */
cogl_rectangle (x2, y1, x1, y2);
x1 = x2;
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
/* If the texture is sliced then cogl_polygon doesn't work so
we'll just use a solid color instead */
if (cogl_texture_is_sliced (state->texture))
cogl_set_source_color4ub (255, 0, 0, 255);
/* Draw a front-facing polygon */
verts[0].x = x1; verts[0].y = y2;
verts[1].x = x2; verts[1].y = y2;
verts[2].x = x2; verts[2].y = y1;
verts[3].x = x1; verts[3].y = y1;
verts[0].tx = 0; verts[0].ty = 0;
verts[1].tx = 1.0; verts[1].ty = 0;
verts[2].tx = 1.0; verts[2].ty = 1.0;
verts[3].tx = 0; verts[3].ty = 1.0;
cogl_polygon (verts, 4, FALSE);
x1 = x2;
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
/* Draw a back-facing polygon */
verts[0].x = x1; verts[0].y = y1;
verts[1].x = x2; verts[1].y = y1;
verts[2].x = x2; verts[2].y = y2;
verts[3].x = x1; verts[3].y = y2;
verts[0].tx = 0; verts[0].ty = 0;
verts[1].tx = 1.0; verts[1].ty = 0;
verts[2].tx = 1.0; verts[2].ty = 1.0;
verts[3].tx = 0; verts[3].ty = 1.0;
cogl_polygon (verts, 4, FALSE);
x1 = x2;
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
cogl_pop_matrix ();
cogl_pop_source ();
cogl_object_unref (pipeline);
}
cogl_object_unref (base_pipeline);
}
static gboolean
_cogl_blit_texture_render_begin (CoglBlitData *data)
{
CoglHandle fbo;
CoglPipeline *pipeline;
unsigned int dst_width, dst_height;
_COGL_GET_CONTEXT (ctx, FALSE);
fbo = _cogl_offscreen_new_to_texture_full
(data->dst_tex, COGL_OFFSCREEN_DISABLE_DEPTH_AND_STENCIL, 0 /* level */);
if (fbo == COGL_INVALID_HANDLE)
return FALSE;
if (!cogl_framebuffer_allocate (fbo, NULL))
{
cogl_handle_unref (fbo);
return FALSE;
}
cogl_push_framebuffer (fbo);
cogl_handle_unref (fbo);
dst_width = cogl_texture_get_width (data->dst_tex);
dst_height = cogl_texture_get_height (data->dst_tex);
/* Set up an orthographic projection so we can use pixel
coordinates to render to the texture */
cogl_ortho (0, /* left */
dst_width, /* right */
dst_height, /* bottom */
0, /* top */
-1, /* near */
1 /* far */);
/* We cache a pipeline used for migrating on to the context so
that it doesn't have to continuously regenerate a shader
program */
if (ctx->blit_texture_pipeline == NULL)
{
ctx->blit_texture_pipeline = cogl_pipeline_new ();
cogl_pipeline_set_layer_filters (ctx->blit_texture_pipeline, 0,
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
/* Disable blending by just directly taking the contents of the
source texture */
cogl_pipeline_set_blend (ctx->blit_texture_pipeline,
"RGBA = ADD(SRC_COLOR, 0)",
NULL);
}
pipeline = ctx->blit_texture_pipeline;
cogl_pipeline_set_layer_texture (pipeline, 0, data->src_tex);
_cogl_push_source (pipeline, FALSE);
return TRUE;
}
