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rectangles: rely on meta-texture api for clamping
Instead of emulating _CLAMP_TO_EDGE in cogl-primitives.c we now defer to cogl_meta_texture_foreach_in_region() to support _CLAMP_TO_EDGE for us. Reviewed-by: Neil Roberts <neil@linux.intel.com>
This commit is contained in:
Robert Bragg
parent
4c49f83056
commit
e9075931e3
@ -190,8 +190,6 @@ static void
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_cogl_texture_quad_multiple_primitives (CoglTexture *texture,
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CoglPipeline *pipeline,
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int layer_index,
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gboolean check_clamp_s,
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gboolean check_clamp_t,
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const float *position,
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float tx_1,
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float ty_1,
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@ -211,110 +209,6 @@ _cogl_texture_quad_multiple_primitives (CoglTexture *texture,
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wrap_s = cogl_pipeline_get_layer_wrap_mode_s (pipeline, layer_index);
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wrap_t = cogl_pipeline_get_layer_wrap_mode_t (pipeline, layer_index);
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/* If the wrap mode is clamp to edge then we'll recursively draw the
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stretched part and replace the coordinates */
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if (check_clamp_s &&
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wrap_s == COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE && tx_1 != tx_2)
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{
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float *replacement_position = g_newa (float, 4);
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float old_tx_1 = tx_1, old_tx_2 = tx_2;
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memcpy (replacement_position, position, sizeof (float) * 4);
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tx_1 = CLAMP (tx_1, 0.0f, 1.0f);
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tx_2 = CLAMP (tx_2, 0.0f, 1.0f);
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if (old_tx_1 != tx_1)
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{
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/* Draw the left part of the quad as a stretched copy of tx_1 */
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float tmp_position[] =
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{ position[0], position[1],
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(position[0] +
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(position[2] - position[0]) *
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(tx_1 - old_tx_1) / (old_tx_2 - old_tx_1)),
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position[3] };
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_cogl_texture_quad_multiple_primitives (texture, pipeline,
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layer_index,
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FALSE, TRUE,
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tmp_position,
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tx_1, ty_1, tx_1, ty_2);
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replacement_position[0] = tmp_position[2];
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}
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if (old_tx_2 != tx_2)
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{
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/* Draw the right part of the quad as a stretched copy of tx_2 */
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float tmp_position[] =
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{ (position[0] +
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(position[2] - position[0]) *
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(tx_2 - old_tx_1) / (old_tx_2 - old_tx_1)),
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position[1], position[2], position[3] };
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_cogl_texture_quad_multiple_primitives (texture, pipeline,
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layer_index,
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FALSE, TRUE,
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tmp_position,
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tx_2, ty_1, tx_2, ty_2);
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replacement_position[2] = tmp_position[0];
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}
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/* If there's no main part left then we don't need to continue */
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if (tx_1 == tx_2)
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return;
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position = replacement_position;
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}
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if (check_clamp_t &&
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wrap_t == COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE && ty_1 != ty_2)
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{
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float *replacement_position = g_newa (float, 4);
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float old_ty_1 = ty_1, old_ty_2 = ty_2;
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memcpy (replacement_position, position, sizeof (float) * 4);
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ty_1 = CLAMP (ty_1, 0.0f, 1.0f);
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ty_2 = CLAMP (ty_2, 0.0f, 1.0f);
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if (old_ty_1 != ty_1)
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{
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/* Draw the top part of the quad as a stretched copy of ty_1 */
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float tmp_position[] =
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{ position[0], position[1], position[2],
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(position[1] +
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(position[3] - position[1]) *
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(ty_1 - old_ty_1) / (old_ty_2 - old_ty_1)) };
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_cogl_texture_quad_multiple_primitives (texture, pipeline,
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layer_index,
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TRUE, FALSE,
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tmp_position,
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tx_1, ty_1, tx_2, ty_1);
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replacement_position[1] = tmp_position[3];
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}
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if (old_ty_2 != ty_2)
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{
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/* Draw the bottom part of the quad as a stretched copy of ty_2 */
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float tmp_position[] =
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{ position[0],
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(position[1] +
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(position[3] - position[1]) *
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(ty_2 - old_ty_1) / (old_ty_2 - old_ty_1)),
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position[2], position[3] };
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_cogl_texture_quad_multiple_primitives (texture, pipeline,
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layer_index,
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TRUE, FALSE,
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tmp_position,
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tx_1, ty_2, tx_2, ty_2);
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replacement_position[3] = tmp_position[1];
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}
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/* If there's no main part left then we don't need to continue */
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if (ty_1 == ty_2)
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return;
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position = replacement_position;
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}
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validate_first_layer_state.override_pipeline = NULL;
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cogl_pipeline_foreach_layer (pipeline,
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validate_first_layer_cb,
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@ -368,15 +262,11 @@ _cogl_texture_quad_multiple_primitives (CoglTexture *texture,
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state.v_to_q_scale_x = fabs (state.quad_len_x / (tx_2 - tx_1));
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state.v_to_q_scale_y = fabs (state.quad_len_y / (ty_2 - ty_1));
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/* cogl_meta_texture_foreach_in_region only allows WRAP_MODE_REPEAT
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* and WRAP_MODE_MIRRORED_REPEAT. If CLAMP_TO_EDGE is in use then we
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* have already dealt with emulation for that and we can just pass
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* WRAP_MODE_REPEAT here... */
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if (wrap_s == COGL_PIPELINE_WRAP_MODE_AUTOMATIC ||
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wrap_s == COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE)
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/* For backwards compatablity the default wrap mode for cogl_rectangle() is
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* _REPEAT... */
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if (wrap_s == COGL_PIPELINE_WRAP_MODE_AUTOMATIC)
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wrap_s = COGL_PIPELINE_WRAP_MODE_REPEAT;
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if (wrap_t == COGL_PIPELINE_WRAP_MODE_AUTOMATIC ||
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wrap_t == COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE)
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if (wrap_t == COGL_PIPELINE_WRAP_MODE_AUTOMATIC)
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wrap_t = COGL_PIPELINE_WRAP_MODE_REPEAT;
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cogl_meta_texture_foreach_in_region (COGL_META_TEXTURE (texture),
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@ -819,7 +709,6 @@ _cogl_rectangles_with_multitexture_coords (
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_cogl_texture_quad_multiple_primitives (texture,
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pipeline,
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state.first_layer,
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TRUE, TRUE,
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rects[i].position,
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tex_coords[0],
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tex_coords[1],
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