diff options
Diffstat (limited to 'include/atlastext/SkAtlasTextRenderer.h')
-rw-r--r-- | include/atlastext/SkAtlasTextRenderer.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/include/atlastext/SkAtlasTextRenderer.h b/include/atlastext/SkAtlasTextRenderer.h deleted file mode 100644 index a78e270edb..0000000000 --- a/include/atlastext/SkAtlasTextRenderer.h +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Copyright 2017 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "SkPoint.h" -#include "SkRefCnt.h" - -#ifndef SkAtlasTextRenderer_DEFINED -#define SkAtlasTextRenderer_DEFINED - -/** - * This is the base class for a renderer implemented by the SkAtlasText client. The - * SkAtlasTextContext issues texture creations, deletions, uploads, and vertex draws to the - * renderer. The renderer must perform those actions in the order called to correctly render - * the text drawn to SkAtlasTextTargets. - */ -class SK_API SkAtlasTextRenderer : public SkRefCnt { -public: - enum class AtlasFormat { - /** Unsigned normalized 8 bit single channel format. */ - kA8 - }; - - struct SDFVertex { - /** Position in device space (not normalized). */ - SkPoint fPosition; - /** Color, same value for all four corners of a glyph quad. */ - uint32_t fColor; - /** Texture coordinate (in texel units, not normalized). */ - SkIPoint16 fTextureCoord; - }; - - virtual ~SkAtlasTextRenderer() = default; - - /** - * Create a texture of the provided format with dimensions 'width' x 'height' - * and return a unique handle. - */ - virtual void* createTexture(AtlasFormat, int width, int height) = 0; - - /** - * Delete the texture with the passed handle. - */ - virtual void deleteTexture(void* textureHandle) = 0; - - /** - * Place the pixel data specified by 'data' in the texture with handle - * 'textureHandle' in the rectangle ['x', 'x' + 'width') x ['y', 'y' + 'height'). - * 'rowBytes' specifies the byte offset between successive rows in 'data' and will always be - * a multiple of the number of bytes per pixel. - * The pixel format of data is the same as that of 'textureHandle'. - */ - virtual void setTextureData(void* textureHandle, const void* data, int x, int y, int width, - int height, size_t rowBytes) = 0; - - /** - * Draws glyphs using SDFs. The SDF data resides in 'textureHandle'. The array - * 'vertices' provides interleaved device-space positions, colors, and - * texture coordinates. There are are 4 * 'quadCnt' entries in 'vertices'. - */ - virtual void drawSDFGlyphs(void* targetHandle, void* textureHandle, const SDFVertex vertices[], - int quadCnt) = 0; - - /** Called when a SkAtlasTextureTarget is destroyed. */ - virtual void targetDeleted(void* targetHandle) = 0; -}; - -#endif |