136 lines
3.7 KiB
C#
136 lines
3.7 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2016 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System;
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using System.Drawing;
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namespace OpenRA.Graphics
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{
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public class SpriteRenderer : Renderer.IBatchRenderer
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{
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readonly Renderer renderer;
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readonly IShader shader;
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readonly Action renderAction;
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readonly Vertex[] vertices;
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Sheet currentSheet;
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BlendMode currentBlend = BlendMode.Alpha;
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int nv = 0;
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public SpriteRenderer(Renderer renderer, IShader shader)
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{
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this.renderer = renderer;
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this.shader = shader;
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vertices = new Vertex[renderer.TempBufferSize];
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renderAction = () => renderer.DrawBatch(vertices, nv, PrimitiveType.TriangleList);
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}
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public void Flush()
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{
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if (nv > 0)
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{
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shader.SetTexture("DiffuseTexture", currentSheet.GetTexture());
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renderer.Device.SetBlendMode(currentBlend);
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shader.Render(renderAction);
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renderer.Device.SetBlendMode(BlendMode.None);
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nv = 0;
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currentSheet = null;
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}
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}
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void SetRenderStateForSprite(Sprite s)
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{
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renderer.CurrentBatchRenderer = this;
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if (s.BlendMode != currentBlend || s.Sheet != currentSheet || nv + 6 > renderer.TempBufferSize)
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Flush();
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currentBlend = s.BlendMode;
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currentSheet = s.Sheet;
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}
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public void DrawSprite(Sprite s, float2 location, PaletteReference pal)
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{
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DrawSprite(s, location, pal.TextureIndex, s.Size);
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}
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public void DrawSprite(Sprite s, float2 location, PaletteReference pal, float2 size)
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{
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DrawSprite(s, location, pal.TextureIndex, size);
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}
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void DrawSprite(Sprite s, float2 location, float paletteTextureIndex, float2 size)
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{
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SetRenderStateForSprite(s);
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Util.FastCreateQuad(vertices, location + s.FractionalOffset * size, s, paletteTextureIndex, nv, size);
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nv += 6;
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}
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// For RGBASpriteRenderer, which doesn't use palettes
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public void DrawSprite(Sprite s, float2 location)
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{
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DrawSprite(s, location, 0, s.Size);
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}
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public void DrawSprite(Sprite s, float2 location, float2 size)
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{
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DrawSprite(s, location, 0, size);
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}
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public void DrawSprite(Sprite s, float2 a, float2 b, float2 c, float2 d)
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{
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SetRenderStateForSprite(s);
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Util.FastCreateQuad(vertices, a, b, c, d, s, 0, nv);
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nv += 6;
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}
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public void DrawSprite(Sprite s, Vertex[] sourceVertices, int offset)
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{
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SetRenderStateForSprite(s);
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Array.Copy(sourceVertices, offset, vertices, nv, 6);
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nv += 6;
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}
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public void DrawVertexBuffer(IVertexBuffer<Vertex> buffer, int start, int length, PrimitiveType type, Sheet sheet, BlendMode blendMode)
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{
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shader.SetTexture("DiffuseTexture", sheet.GetTexture());
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renderer.Device.SetBlendMode(blendMode);
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shader.Render(() => renderer.DrawBatch(buffer, start, length, type));
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renderer.Device.SetBlendMode(BlendMode.None);
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}
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public void SetPalette(ITexture palette)
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{
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shader.SetTexture("Palette", palette);
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}
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public void SetViewportParams(Size screen, float depthScale, float depthOffset, float zoom, int2 scroll)
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{
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shader.SetVec("Scroll", scroll.X, scroll.Y, scroll.Y);
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shader.SetVec("r1",
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zoom * 2f / screen.Width,
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-zoom * 2f / screen.Height,
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-depthScale * zoom / screen.Height);
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shader.SetVec("r2", -1, 1, 1 - depthOffset);
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// Texture index is sampled as a float, so convert to pixels then scale
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shader.SetVec("DepthTextureScale", 128 * depthScale * zoom / screen.Height);
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}
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public void SetDepthPreviewEnabled(bool enabled)
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{
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shader.SetBool("EnableDepthPreview", enabled);
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}
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}
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}
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