Mac Overlays: Add AllOrNothing strategy

cc/output/overlay_strategy_common.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/output/overlay_strategy_common.h"
 
-#include <limits>
-
-#include "cc/base/math_util.h"
-#include "cc/quads/io_surface_draw_quad.h"
 #include "cc/quads/solid_color_draw_quad.h"
-#include "cc/quads/stream_video_draw_quad.h"
-#include "cc/quads/texture_draw_quad.h"
-#include "cc/resources/resource_provider.h"
-#include "ui/gfx/geometry/point3_f.h"
-#include "ui/gfx/geometry/rect_conversions.h"
-#include "ui/gfx/transform.h"
 
 namespace cc {
 
 OverlayStrategyCommon::OverlayStrategyCommon(
     OverlayCandidateValidator* capability_checker,
     OverlayStrategyCommonDelegate* delegate)
     : capability_checker_(capability_checker), delegate_(delegate) {}
 
 OverlayStrategyCommon::~OverlayStrategyCommon() {
 }
 
 bool OverlayStrategyCommon::Attempt(RenderPassList* render_passes_in_draw_order,
                                     OverlayCandidateList* candidate_list,
                                     float device_scale_factor) {
   if (!capability_checker_)
     return false;
   RenderPass* root_render_pass = render_passes_in_draw_order->back();
   DCHECK(root_render_pass);
 
   // Add our primary surface.
   OverlayCandidate main_image;
   main_image.display_rect = gfx::RectF(root_render_pass->output_rect);
   DCHECK(candidate_list->empty());
   candidate_list->push_back(main_image);
 
   bool created_overlay = false;
   QuadList& quad_list = root_render_pass->quad_list;
   for (auto it = quad_list.begin(); it != quad_list.end();) {
     OverlayCandidate candidate;
-    if (!GetCandidateQuadInfo(**it, &candidate)) {
+    if (!OverlayCandidate::FromDrawQuad(*it, &candidate)) {
       ++it;
       continue;
     }
 
     OverlayResult result = delegate_->TryOverlay(
         capability_checker_, render_passes_in_draw_order, candidate_list,
         candidate, &it, device_scale_factor);
     switch (result) {
       case DID_NOT_CREATE_OVERLAY:
         ++it;
@@ skipping 21 matching lines @@
         SolidColorDrawQuad::MaterialCast(draw_quad);
     SkColor color = solid_quad->color;
     float opacity = solid_quad->shared_quad_state->opacity;
     float alpha = (SkColorGetA(color) * (1.0f / 255.0f)) * opacity;
     return solid_quad->ShouldDrawWithBlending() &&
            alpha < std::numeric_limits<float>::epsilon();
   }
   return false;
 }
 
-bool OverlayStrategyCommon::GetTextureQuadInfo(const TextureDrawQuad& quad,
-                                               OverlayCandidate* quad_info) {
-  if (!quad.allow_overlay())
-    return false;
-  gfx::OverlayTransform overlay_transform =
-      OverlayCandidate::GetOverlayTransform(
-          quad.shared_quad_state->quad_to_target_transform, quad.y_flipped);
-  if (quad.background_color != SK_ColorTRANSPARENT ||
-      quad.premultiplied_alpha ||
-      overlay_transform == gfx::OVERLAY_TRANSFORM_INVALID)
-    return false;
-  quad_info->resource_id = quad.resource_id();
-  quad_info->resource_size_in_pixels = quad.resource_size_in_pixels();
-  quad_info->transform = overlay_transform;
-  quad_info->uv_rect = BoundingRect(quad.uv_top_left, quad.uv_bottom_right);
-  return true;
-}
-
-bool OverlayStrategyCommon::GetVideoQuadInfo(const StreamVideoDrawQuad& quad,
-                                             OverlayCandidate* quad_info) {
-  if (!quad.allow_overlay())
-    return false;
-  gfx::OverlayTransform overlay_transform =
-      OverlayCandidate::GetOverlayTransform(
-          quad.shared_quad_state->quad_to_target_transform, false);
-  if (overlay_transform == gfx::OVERLAY_TRANSFORM_INVALID)
-    return false;
-  if (!quad.matrix.IsScaleOrTranslation()) {
-    // We cannot handle anything other than scaling & translation for texture
-    // coordinates yet.
-    return false;
-  }
-  quad_info->resource_id = quad.resource_id();
-  quad_info->resource_size_in_pixels = quad.resource_size_in_pixels();
-  quad_info->transform = overlay_transform;
-
-  gfx::Point3F uv0 = gfx::Point3F(0, 0, 0);
-  gfx::Point3F uv1 = gfx::Point3F(1, 1, 0);
-  quad.matrix.TransformPoint(&uv0);
-  quad.matrix.TransformPoint(&uv1);
-  gfx::Vector3dF delta = uv1 - uv0;
-  if (delta.x() < 0) {
-    quad_info->transform = OverlayCandidate::ModifyTransform(
-        quad_info->transform, gfx::OVERLAY_TRANSFORM_FLIP_HORIZONTAL);
-    float x0 = uv0.x();
-    uv0.set_x(uv1.x());
-    uv1.set_x(x0);
-    delta.set_x(-delta.x());
-  }
-
-  if (delta.y() < 0) {
-    // In this situation, uv0y < uv1y. Since we overlay inverted, a request
-    // to invert the source texture means we can just output the texture
-    // normally and it will be correct.
-    quad_info->uv_rect = gfx::RectF(uv0.x(), uv1.y(), delta.x(), -delta.y());
-  } else {
-    quad_info->transform = OverlayCandidate::ModifyTransform(
-        quad_info->transform, gfx::OVERLAY_TRANSFORM_FLIP_VERTICAL);
-    quad_info->uv_rect = gfx::RectF(uv0.x(), uv0.y(), delta.x(), delta.y());
-  }
-  return true;
-}
-
-bool OverlayStrategyCommon::GetIOSurfaceQuadInfo(const IOSurfaceDrawQuad& quad,
-                                                 OverlayCandidate* quad_info) {
-  if (!quad.allow_overlay)
-    return false;
-  gfx::OverlayTransform overlay_transform =
-      OverlayCandidate::GetOverlayTransform(
-          quad.shared_quad_state->quad_to_target_transform, false);
-  if (overlay_transform != gfx::OVERLAY_TRANSFORM_NONE)
-    return false;
-  quad_info->resource_id = quad.io_surface_resource_id();
-  quad_info->resource_size_in_pixels = quad.io_surface_size;
-  quad_info->transform = overlay_transform;
-  quad_info->uv_rect = gfx::RectF(1.f, 1.f);
-  return true;
-}
-
-bool OverlayStrategyCommon::GetCandidateQuadInfo(const DrawQuad& draw_quad,
-                                                 OverlayCandidate* quad_info) {
-  // All quad checks.
-  if (draw_quad.needs_blending || draw_quad.shared_quad_state->opacity != 1.f ||
-      draw_quad.shared_quad_state->blend_mode != SkXfermode::kSrcOver_Mode)
-    return false;
-
-  switch (draw_quad.material) {
-    case DrawQuad::TEXTURE_CONTENT: {
-      auto* quad = TextureDrawQuad::MaterialCast(&draw_quad);
-      if (!GetTextureQuadInfo(*quad, quad_info))
-        return false;
-    } break;
-    case DrawQuad::STREAM_VIDEO_CONTENT: {
-      auto* quad = StreamVideoDrawQuad::MaterialCast(&draw_quad);
-      if (!GetVideoQuadInfo(*quad, quad_info))
-        return false;
-    } break;
-    case DrawQuad::IO_SURFACE_CONTENT: {
-      auto* quad = IOSurfaceDrawQuad::MaterialCast(&draw_quad);
-      if (!GetIOSurfaceQuadInfo(*quad, quad_info))
-        return false;
-    } break;
-    default:
-      return false;
-  }
-
-  quad_info->format = RGBA_8888;
-  quad_info->display_rect = OverlayCandidate::GetOverlayRect(
-      draw_quad.shared_quad_state->quad_to_target_transform, draw_quad.rect);
-  quad_info->quad_rect_in_target_space = MathUtil::MapEnclosingClippedRect(
-      draw_quad.shared_quad_state->quad_to_target_transform, draw_quad.rect);
-  quad_info->clip_rect = draw_quad.shared_quad_state->clip_rect;
-  quad_info->is_clipped = draw_quad.shared_quad_state->is_clipped;
-  return true;
-}
-
 }  // namespace cc