From f0c2c0e8e9bfb33625b7504d264f9606bc70c15f Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Mon, 6 Apr 2020 02:17:49 +0900
Subject: [PATCH] monogame: Set viewports

Updates #1078
---
 internal/graphicsdriver/monogame/graphics.go |  4 ++--
 internal/graphicsdriver/monogame/image.go    |  4 ++--
 internal/monogame/monogame.go                | 10 +++++-----
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/internal/graphicsdriver/monogame/graphics.go b/internal/graphicsdriver/monogame/graphics.go
index d8965aa20..f5f4c5fb2 100644
--- a/internal/graphicsdriver/monogame/graphics.go
+++ b/internal/graphicsdriver/monogame/graphics.go
@@ -114,8 +114,8 @@ type screen struct {
 	game *monogame.Game
 }
 
-func (s *screen) SetAsDestination() {
-	s.game.ResetDestination()
+func (s *screen) SetAsDestination(viewportWidth, viewportHeight int) {
+	s.game.ResetDestination(viewportWidth, viewportHeight)
 }
 
 func (s *screen) SetAsSource() {
diff --git a/internal/graphicsdriver/monogame/image.go b/internal/graphicsdriver/monogame/image.go
index 32aac530a..ef6c96328 100644
--- a/internal/graphicsdriver/monogame/image.go
+++ b/internal/graphicsdriver/monogame/image.go
@@ -21,7 +21,7 @@ import (
 )
 
 type RenderTarget2D interface {
-	SetAsDestination()
+	SetAsDestination(viewportWidth, viewportHeight int)
 	SetAsSource()
 	ReplacePixels(args []*driver.ReplacePixelsArgs)
 	Dispose()
@@ -48,7 +48,7 @@ func (*Image) Pixels() ([]byte, error) {
 }
 
 func (i *Image) SetAsDestination() {
-	i.v.SetAsDestination()
+	i.v.SetAsDestination(i.width, i.height)
 }
 
 func (i *Image) SetAsSource() {
diff --git a/internal/monogame/monogame.go b/internal/monogame/monogame.go
index f798c495f..b88d99ffd 100644
--- a/internal/monogame/monogame.go
+++ b/internal/monogame/monogame.go
@@ -110,8 +110,8 @@ func (g *Game) Draw(indexLen int, indexOffset int, mode driver.CompositeMode, co
 	g.binding.Call("Draw", indexLen, indexOffset)
 }
 
-func (g *Game) ResetDestination() {
-	g.binding.Set("Dst", nil)
+func (g *Game) ResetDestination(viewportWidth, viewportHeight int) {
+	g.binding.Call("SetDestination", nil, viewportWidth, viewportHeight)
 }
 
 type RenderTarget2D struct {
@@ -132,10 +132,10 @@ func (r *RenderTarget2D) ReplacePixels(args []*driver.ReplacePixelsArgs) {
 	}
 }
 
-func (r *RenderTarget2D) SetAsDestination() {
-	r.binding.Set("Dst", r.v)
+func (r *RenderTarget2D) SetAsDestination(viewportWidth, viewportHeight int) {
+	r.binding.Call("SetDestination", r.v, viewportWidth, viewportHeight)
 }
 
 func (r *RenderTarget2D) SetAsSource() {
-	r.binding.Set("Src", r.v)
+	r.binding.Call("SetSource", r.v)
 }