epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 2 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 3 | * Copyright 2010 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 9 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 10 | #ifndef GrContext_DEFINED |
| 11 | #define GrContext_DEFINED |
| 12 | |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 13 | #include "GrColor.h" |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 14 | #include "GrAARectRenderer.h" |
robertphillips@google.com | a2d7148 | 2012-08-01 20:08:47 +0000 | [diff] [blame] | 15 | #include "GrClipData.h" |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 16 | #include "SkMatrix.h" |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 17 | #include "GrPaint.h" |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 18 | #include "GrPathRendererChain.h" |
bsalomon@google.com | c287a89 | 2011-08-19 14:49:36 +0000 | [diff] [blame] | 19 | // not strictly needed but requires WK change in LayerTextureUpdaterCanvas to |
| 20 | // remove. |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 21 | #include "GrRenderTarget.h" |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 22 | #include "GrRefCnt.h" |
| 23 | #include "GrTexture.h" |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 24 | |
senorblanco@chromium.org | 3b4dd90 | 2012-03-05 20:41:22 +0000 | [diff] [blame] | 25 | class GrAutoScratchTexture; |
bsalomon@google.com | 10e04bf | 2012-03-30 14:35:04 +0000 | [diff] [blame] | 26 | class GrDrawState; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 27 | class GrDrawTarget; |
bsalomon@google.com | a469c28 | 2012-10-24 18:28:34 +0000 | [diff] [blame] | 28 | class GrEffect; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 29 | class GrFontCache; |
bsalomon@google.com | 05ef510 | 2011-05-02 21:14:59 +0000 | [diff] [blame] | 30 | class GrGpu; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 31 | class GrIndexBuffer; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 32 | class GrIndexBufferAllocPool; |
| 33 | class GrInOrderDrawBuffer; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 34 | class GrPathRenderer; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 35 | class GrResourceEntry; |
| 36 | class GrResourceCache; |
bsalomon@google.com | 558a75b | 2011-08-08 17:01:14 +0000 | [diff] [blame] | 37 | class GrStencilBuffer; |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 38 | class GrTextureParams; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 39 | class GrVertexBuffer; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 40 | class GrVertexBufferAllocPool; |
robertphillips@google.com | 72176b2 | 2012-05-23 13:19:12 +0000 | [diff] [blame] | 41 | class GrSoftwarePathRenderer; |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 42 | class SkStrokeRec; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 43 | |
bsalomon@google.com | 9182610 | 2011-03-21 19:51:57 +0000 | [diff] [blame] | 44 | class GR_API GrContext : public GrRefCnt { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 45 | public: |
reed@google.com | fa35e3d | 2012-06-26 20:16:17 +0000 | [diff] [blame] | 46 | SK_DECLARE_INST_COUNT(GrContext) |
| 47 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 48 | /** |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 49 | * Creates a GrContext for a backend context. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 50 | */ |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 51 | static GrContext* Create(GrBackend, GrBackendContext); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 52 | |
bsalomon@google.com | c0af317 | 2012-06-15 14:10:09 +0000 | [diff] [blame] | 53 | /** |
| 54 | * Returns the number of GrContext instances for the current thread. |
| 55 | */ |
| 56 | static int GetThreadInstanceCount(); |
| 57 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 58 | virtual ~GrContext(); |
| 59 | |
| 60 | /** |
| 61 | * The GrContext normally assumes that no outsider is setting state |
| 62 | * within the underlying 3D API's context/device/whatever. This call informs |
| 63 | * the context that the state was modified and it should resend. Shouldn't |
| 64 | * be called frequently for good performance. |
| 65 | */ |
| 66 | void resetContext(); |
| 67 | |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 68 | /** |
robertphillips@google.com | cdb426d | 2012-09-24 19:33:59 +0000 | [diff] [blame] | 69 | * Callback function to allow classes to cleanup on GrContext destruction. |
| 70 | * The 'info' field is filled in with the 'info' passed to addCleanUp. |
| 71 | */ |
| 72 | typedef void (*PFCleanUpFunc)(const GrContext* context, void* info); |
| 73 | |
| 74 | /** |
| 75 | * Add a function to be called from within GrContext's destructor. |
| 76 | * This gives classes a chance to free resources held on a per context basis. |
| 77 | * The 'info' parameter will be stored and passed to the callback function. |
| 78 | */ |
| 79 | void addCleanUp(PFCleanUpFunc cleanUp, void* info) { |
| 80 | CleanUpData* entry = fCleanUpData.push(); |
| 81 | |
| 82 | entry->fFunc = cleanUp; |
| 83 | entry->fInfo = info; |
| 84 | } |
| 85 | |
| 86 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 87 | * Abandons all GPU resources, assumes 3D API state is unknown. Call this |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 88 | * if you have lost the associated GPU context, and thus internal texture, |
| 89 | * buffer, etc. references/IDs are now invalid. Should be called even when |
| 90 | * GrContext is no longer going to be used for two reasons: |
| 91 | * 1) ~GrContext will not try to free the objects in the 3D API. |
| 92 | * 2) If you've created GrResources that outlive the GrContext they will |
| 93 | * be marked as invalid (GrResource::isValid()) and won't attempt to |
| 94 | * free their underlying resource in the 3D API. |
| 95 | * Content drawn since the last GrContext::flush() may be lost. |
| 96 | */ |
| 97 | void contextLost(); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 98 | |
| 99 | /** |
junov@google.com | 53a5584 | 2011-06-08 22:55:10 +0000 | [diff] [blame] | 100 | * Similar to contextLost, but makes no attempt to reset state. |
| 101 | * Use this method when GrContext destruction is pending, but |
| 102 | * the graphics context is destroyed first. |
| 103 | */ |
| 104 | void contextDestroyed(); |
| 105 | |
| 106 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 107 | * Frees GPU created by the context. Can be called to reduce GPU memory |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 108 | * pressure. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 109 | */ |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 110 | void freeGpuResources(); |
| 111 | |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 112 | /** |
| 113 | * Returns the number of bytes of GPU memory hosted by the texture cache. |
| 114 | */ |
| 115 | size_t getGpuTextureCacheBytes() const; |
| 116 | |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 117 | /////////////////////////////////////////////////////////////////////////// |
| 118 | // Textures |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 119 | |
| 120 | /** |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 121 | * Create a new entry, based on the specified key and texture and return it. |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 122 | * |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 123 | * @param params The texture params used to draw a texture may help determine |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 124 | * the cache entry used. (e.g. different versions may exist |
| 125 | * for different wrap modes on GPUs with limited NPOT |
| 126 | * texture support). NULL implies clamp wrap modes. |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 127 | * @param desc Description of the texture properties. |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 128 | * @param cacheID Cache-specific properties (e.g., texture gen ID) |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 129 | * @param srcData Pointer to the pixel values. |
| 130 | * @param rowBytes The number of bytes between rows of the texture. Zero |
| 131 | * implies tightly packed rows. |
| 132 | */ |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 133 | GrTexture* createTexture(const GrTextureParams* params, |
| 134 | const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 135 | const GrCacheID& cacheID, |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 136 | void* srcData, size_t rowBytes); |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 137 | |
| 138 | /** |
skia.committer@gmail.com | d6ce0db | 2012-09-10 02:01:22 +0000 | [diff] [blame] | 139 | * Search for an entry based on key and dimensions. If found, |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 140 | * return it. The return value will be NULL if not found. |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 141 | * |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 142 | * @param desc Description of the texture properties. |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 143 | * @param cacheID Cache-specific properties (e.g., texture gen ID) |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 144 | * @param params The texture params used to draw a texture may help determine |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 145 | * the cache entry used. (e.g. different versions may exist |
| 146 | * for different wrap modes on GPUs with limited NPOT |
| 147 | * texture support). NULL implies clamp wrap modes. |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 148 | */ |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 149 | GrTexture* findTexture(const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 150 | const GrCacheID& cacheID, |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 151 | const GrTextureParams* params); |
bsalomon@google.com | fb30951 | 2011-11-30 14:13:48 +0000 | [diff] [blame] | 152 | /** |
| 153 | * Determines whether a texture is in the cache. If the texture is found it |
| 154 | * will not be locked or returned. This call does not affect the priority of |
| 155 | * the texture for deletion. |
| 156 | */ |
robertphillips@google.com | 75b3c96 | 2012-06-07 12:08:45 +0000 | [diff] [blame] | 157 | bool isTextureInCache(const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 158 | const GrCacheID& cacheID, |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 159 | const GrTextureParams* params) const; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 160 | |
| 161 | /** |
| 162 | * Enum that determines how closely a returned scratch texture must match |
| 163 | * a provided GrTextureDesc. |
| 164 | */ |
| 165 | enum ScratchTexMatch { |
| 166 | /** |
| 167 | * Finds a texture that exactly matches the descriptor. |
| 168 | */ |
| 169 | kExact_ScratchTexMatch, |
| 170 | /** |
| 171 | * Finds a texture that approximately matches the descriptor. Will be |
| 172 | * at least as large in width and height as desc specifies. If desc |
| 173 | * specifies that texture is a render target then result will be a |
| 174 | * render target. If desc specifies a render target and doesn't set the |
| 175 | * no stencil flag then result will have a stencil. Format and aa level |
| 176 | * will always match. |
| 177 | */ |
| 178 | kApprox_ScratchTexMatch |
| 179 | }; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 180 | |
| 181 | /** |
bsalomon@google.com | fea37b5 | 2011-04-25 15:51:06 +0000 | [diff] [blame] | 182 | * Returns a texture matching the desc. It's contents are unknown. Subsequent |
| 183 | * requests with the same descriptor are not guaranteed to return the same |
| 184 | * texture. The same texture is guaranteed not be returned again until it is |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 185 | * unlocked. Call must be balanced with an unlockTexture() call. |
bsalomon@google.com | a39f404 | 2011-04-26 13:18:16 +0000 | [diff] [blame] | 186 | * |
| 187 | * Textures created by createAndLockTexture() hide the complications of |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 188 | * tiling non-power-of-two textures on APIs that don't support this (e.g. |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 189 | * unextended GLES2). Tiling a NPOT texture created by lockScratchTexture on |
bsalomon@google.com | a39f404 | 2011-04-26 13:18:16 +0000 | [diff] [blame] | 190 | * such an API will create gaps in the tiling pattern. This includes clamp |
| 191 | * mode. (This may be addressed in a future update.) |
bsalomon@google.com | fea37b5 | 2011-04-25 15:51:06 +0000 | [diff] [blame] | 192 | */ |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 193 | GrTexture* lockScratchTexture(const GrTextureDesc&, ScratchTexMatch match); |
bsalomon@google.com | b5b3168 | 2011-06-16 18:05:35 +0000 | [diff] [blame] | 194 | |
| 195 | /** |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 196 | * When done with an entry, call unlockScratchTexture(entry) on it, which returns |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 197 | * it to the cache, where it may be purged. |
| 198 | */ |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 199 | void unlockScratchTexture(GrTexture* texture); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 200 | |
| 201 | /** |
robertphillips@google.com | 50a035d | 2012-09-07 19:44:33 +0000 | [diff] [blame] | 202 | * This method should be called whenever a GrTexture is unreffed or |
| 203 | * switched from exclusive to non-exclusive. This |
| 204 | * gives the resource cache a chance to discard unneeded textures. |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 205 | * Note: this entry point will be removed once totally ref-driven |
| 206 | * cache maintenance is implemented |
robertphillips@google.com | 50a035d | 2012-09-07 19:44:33 +0000 | [diff] [blame] | 207 | */ |
| 208 | void purgeCache(); |
| 209 | |
| 210 | /** |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 211 | * Creates a texture that is outside the cache. Does not count against |
| 212 | * cache's budget. |
| 213 | */ |
robertphillips@google.com | 75b3c96 | 2012-06-07 12:08:45 +0000 | [diff] [blame] | 214 | GrTexture* createUncachedTexture(const GrTextureDesc& desc, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 215 | void* srcData, |
| 216 | size_t rowBytes); |
| 217 | |
| 218 | /** |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 219 | * Returns true if the specified use of an indexed texture is supported. |
| 220 | * Support may depend upon whether the texture params indicate that the |
| 221 | * texture will be tiled. Passing NULL for the texture params indicates |
| 222 | * clamp mode. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 223 | */ |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 224 | bool supportsIndex8PixelConfig(const GrTextureParams*, |
bsalomon@google.com | 1f221a7 | 2011-08-23 20:54:07 +0000 | [diff] [blame] | 225 | int width, |
| 226 | int height) const; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 227 | |
| 228 | /** |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 229 | * Return the current texture cache limits. |
| 230 | * |
| 231 | * @param maxTextures If non-null, returns maximum number of textures that |
| 232 | * can be held in the cache. |
| 233 | * @param maxTextureBytes If non-null, returns maximum number of bytes of |
| 234 | * texture memory that can be held in the cache. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 235 | */ |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 236 | void getTextureCacheLimits(int* maxTextures, size_t* maxTextureBytes) const; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 237 | |
| 238 | /** |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 239 | * Specify the texture cache limits. If the current cache exceeds either |
| 240 | * of these, it will be purged (LRU) to keep the cache within these limits. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 241 | * |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 242 | * @param maxTextures The maximum number of textures that can be held in |
| 243 | * the cache. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 244 | * @param maxTextureBytes The maximum number of bytes of texture memory |
| 245 | * that can be held in the cache. |
| 246 | */ |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 247 | void setTextureCacheLimits(int maxTextures, size_t maxTextureBytes); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 248 | |
| 249 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 250 | * Return the max width or height of a texture supported by the current GPU. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 251 | */ |
bsalomon@google.com | 9195836 | 2011-06-13 17:58:13 +0000 | [diff] [blame] | 252 | int getMaxTextureSize() const; |
| 253 | |
| 254 | /** |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 255 | * Return the max width or height of a render target supported by the |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 256 | * current GPU. |
bsalomon@google.com | 9195836 | 2011-06-13 17:58:13 +0000 | [diff] [blame] | 257 | */ |
| 258 | int getMaxRenderTargetSize() const; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 259 | |
| 260 | /////////////////////////////////////////////////////////////////////////// |
| 261 | // Render targets |
| 262 | |
| 263 | /** |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 264 | * Sets the render target. |
| 265 | * @param target the render target to set. (should not be NULL.) |
| 266 | */ |
| 267 | void setRenderTarget(GrRenderTarget* target); |
| 268 | |
| 269 | /** |
| 270 | * Gets the current render target. |
| 271 | * @return the currently bound render target. Should never be NULL. |
| 272 | */ |
| 273 | const GrRenderTarget* getRenderTarget() const; |
| 274 | GrRenderTarget* getRenderTarget(); |
| 275 | |
robertphillips@google.com | f69a11b | 2012-06-15 13:58:07 +0000 | [diff] [blame] | 276 | GrAARectRenderer* getAARectRenderer() { return fAARectRenderer; } |
| 277 | |
robertphillips@google.com | 99a5ac0 | 2012-04-10 19:26:38 +0000 | [diff] [blame] | 278 | /** |
| 279 | * Can the provided configuration act as a color render target? |
| 280 | */ |
| 281 | bool isConfigRenderable(GrPixelConfig config) const; |
| 282 | |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 283 | /////////////////////////////////////////////////////////////////////////// |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 284 | // Backend Surfaces |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 285 | |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 286 | /** |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 287 | * Wraps an existing texture with a GrTexture object. |
| 288 | * |
| 289 | * OpenGL: if the object is a texture Gr may change its GL texture params |
| 290 | * when it is drawn. |
| 291 | * |
| 292 | * @param desc description of the object to create. |
| 293 | * |
| 294 | * @return GrTexture object or NULL on failure. |
| 295 | */ |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 296 | GrTexture* wrapBackendTexture(const GrBackendTextureDesc& desc); |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 297 | |
| 298 | /** |
| 299 | * Wraps an existing render target with a GrRenderTarget object. It is |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 300 | * similar to wrapBackendTexture but can be used to draw into surfaces |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 301 | * that are not also textures (e.g. FBO 0 in OpenGL, or an MSAA buffer that |
| 302 | * the client will resolve to a texture). |
| 303 | * |
| 304 | * @param desc description of the object to create. |
| 305 | * |
| 306 | * @return GrTexture object or NULL on failure. |
| 307 | */ |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 308 | GrRenderTarget* wrapBackendRenderTarget(const GrBackendRenderTargetDesc& desc); |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 309 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 310 | /////////////////////////////////////////////////////////////////////////// |
| 311 | // Matrix state |
| 312 | |
| 313 | /** |
| 314 | * Gets the current transformation matrix. |
| 315 | * @return the current matrix. |
| 316 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 317 | const SkMatrix& getMatrix() const; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 318 | |
| 319 | /** |
| 320 | * Sets the transformation matrix. |
| 321 | * @param m the matrix to set. |
| 322 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 323 | void setMatrix(const SkMatrix& m); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 324 | |
| 325 | /** |
bsalomon@google.com | 0f11e1a | 2012-10-08 14:48:36 +0000 | [diff] [blame] | 326 | * Sets the current transformation matrix to identity. |
| 327 | */ |
| 328 | void setIdentityMatrix(); |
| 329 | |
| 330 | /** |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 331 | * Concats the current matrix. The passed matrix is applied before the |
| 332 | * current matrix. |
| 333 | * @param m the matrix to concat. |
| 334 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 335 | void concatMatrix(const SkMatrix& m) const; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 336 | |
| 337 | |
| 338 | /////////////////////////////////////////////////////////////////////////// |
| 339 | // Clip state |
| 340 | /** |
| 341 | * Gets the current clip. |
| 342 | * @return the current clip. |
| 343 | */ |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 344 | const GrClipData* getClip() const; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 345 | |
| 346 | /** |
| 347 | * Sets the clip. |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 348 | * @param clipData the clip to set. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 349 | */ |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 350 | void setClip(const GrClipData* clipData); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 351 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 352 | /////////////////////////////////////////////////////////////////////////// |
| 353 | // Draws |
| 354 | |
| 355 | /** |
bsalomon@google.com | 6aa25c3 | 2011-04-27 19:55:29 +0000 | [diff] [blame] | 356 | * Clear the entire or rect of the render target, ignoring any clips. |
| 357 | * @param rect the rect to clear or the whole thing if rect is NULL. |
| 358 | * @param color the color to clear to. |
robertphillips@google.com | c82a8b7 | 2012-06-21 20:15:48 +0000 | [diff] [blame] | 359 | * @param target if non-NULL, the render target to clear otherwise clear |
| 360 | * the current render target |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 361 | */ |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 362 | void clear(const GrIRect* rect, GrColor color, |
robertphillips@google.com | c82a8b7 | 2012-06-21 20:15:48 +0000 | [diff] [blame] | 363 | GrRenderTarget* target = NULL); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 364 | |
| 365 | /** |
| 366 | * Draw everywhere (respecting the clip) with the paint. |
| 367 | */ |
| 368 | void drawPaint(const GrPaint& paint); |
| 369 | |
| 370 | /** |
| 371 | * Draw the rect using a paint. |
| 372 | * @param paint describes how to color pixels. |
| 373 | * @param strokeWidth If strokeWidth < 0, then the rect is filled, else |
| 374 | * the rect is mitered stroked based on strokeWidth. If |
| 375 | * strokeWidth == 0, then the stroke is always a single |
| 376 | * pixel thick. |
| 377 | * @param matrix Optional matrix applied to the rect. Applied before |
| 378 | * context's matrix or the paint's matrix. |
| 379 | * The rects coords are used to access the paint (through texture matrix) |
| 380 | */ |
| 381 | void drawRect(const GrPaint& paint, |
| 382 | const GrRect&, |
bsalomon@google.com | 8171288 | 2012-11-01 17:12:34 +0000 | [diff] [blame] | 383 | SkScalar strokeWidth = -1, |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 384 | const SkMatrix* matrix = NULL); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 385 | |
| 386 | /** |
| 387 | * Maps a rect of paint coordinates onto the a rect of destination |
| 388 | * coordinates. Each rect can optionally be transformed. The srcRect |
| 389 | * is stretched over the dstRect. The dstRect is transformed by the |
| 390 | * context's matrix and the srcRect is transformed by the paint's matrix. |
| 391 | * Additional optional matrices can be provided by parameters. |
| 392 | * |
| 393 | * @param paint describes how to color pixels. |
| 394 | * @param dstRect the destination rect to draw. |
| 395 | * @param srcRect rect of paint coordinates to be mapped onto dstRect |
| 396 | * @param dstMatrix Optional matrix to transform dstRect. Applied before |
| 397 | * context's matrix. |
| 398 | * @param srcMatrix Optional matrix to transform srcRect Applied before |
| 399 | * paint's matrix. |
| 400 | */ |
| 401 | void drawRectToRect(const GrPaint& paint, |
| 402 | const GrRect& dstRect, |
| 403 | const GrRect& srcRect, |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 404 | const SkMatrix* dstMatrix = NULL, |
| 405 | const SkMatrix* srcMatrix = NULL); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 406 | |
| 407 | /** |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 408 | * Draws a path. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 409 | * |
| 410 | * @param paint describes how to color pixels. |
reed@google.com | 07f3ee1 | 2011-05-16 17:21:57 +0000 | [diff] [blame] | 411 | * @param path the path to draw |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 412 | * @param stroke the stroke information (width, join, cap) |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 413 | */ |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 414 | void drawPath(const GrPaint& paint, const SkPath& path, const SkStrokeRec& stroke); |
reed@google.com | 07f3ee1 | 2011-05-16 17:21:57 +0000 | [diff] [blame] | 415 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 416 | /** |
| 417 | * Draws vertices with a paint. |
| 418 | * |
| 419 | * @param paint describes how to color pixels. |
| 420 | * @param primitiveType primitives type to draw. |
| 421 | * @param vertexCount number of vertices. |
| 422 | * @param positions array of vertex positions, required. |
| 423 | * @param texCoords optional array of texture coordinates used |
| 424 | * to access the paint. |
| 425 | * @param colors optional array of per-vertex colors, supercedes |
| 426 | * the paint's color field. |
| 427 | * @param indices optional array of indices. If NULL vertices |
| 428 | * are drawn non-indexed. |
| 429 | * @param indexCount if indices is non-null then this is the |
| 430 | * number of indices. |
| 431 | */ |
| 432 | void drawVertices(const GrPaint& paint, |
| 433 | GrPrimitiveType primitiveType, |
| 434 | int vertexCount, |
| 435 | const GrPoint positions[], |
| 436 | const GrPoint texs[], |
| 437 | const GrColor colors[], |
| 438 | const uint16_t indices[], |
| 439 | int indexCount); |
| 440 | |
bsalomon@google.com | 93c9660 | 2012-04-27 13:05:21 +0000 | [diff] [blame] | 441 | /** |
| 442 | * Draws an oval. |
| 443 | * |
| 444 | * @param paint describes how to color pixels. |
jvanverth@google.com | 46d3d39 | 2013-01-22 13:34:01 +0000 | [diff] [blame^] | 445 | * @param oval the bounding rect of the oval. |
| 446 | * @param stroke the stroke information (width, style) |
bsalomon@google.com | 93c9660 | 2012-04-27 13:05:21 +0000 | [diff] [blame] | 447 | */ |
| 448 | void drawOval(const GrPaint& paint, |
jvanverth@google.com | 46d3d39 | 2013-01-22 13:34:01 +0000 | [diff] [blame^] | 449 | const GrRect& oval, |
| 450 | const SkStrokeRec& stroke); |
bsalomon@google.com | 93c9660 | 2012-04-27 13:05:21 +0000 | [diff] [blame] | 451 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 452 | /////////////////////////////////////////////////////////////////////////// |
| 453 | // Misc. |
| 454 | |
| 455 | /** |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 456 | * Flags that affect flush() behavior. |
| 457 | */ |
| 458 | enum FlushBits { |
| 459 | /** |
| 460 | * A client may want Gr to bind a GrRenderTarget in the 3D API so that |
| 461 | * it can be rendered to directly. However, Gr lazily sets state. Simply |
| 462 | * calling setRenderTarget() followed by flush() without flags may not |
| 463 | * bind the render target. This flag forces the context to bind the last |
| 464 | * set render target in the 3D API. |
| 465 | */ |
| 466 | kForceCurrentRenderTarget_FlushBit = 0x1, |
| 467 | /** |
| 468 | * A client may reach a point where it has partially rendered a frame |
| 469 | * through a GrContext that it knows the user will never see. This flag |
| 470 | * causes the flush to skip submission of deferred content to the 3D API |
| 471 | * during the flush. |
| 472 | */ |
| 473 | kDiscard_FlushBit = 0x2, |
| 474 | }; |
| 475 | |
| 476 | /** |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 477 | * Call to ensure all drawing to the context has been issued to the |
| 478 | * underlying 3D API. |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 479 | * @param flagsBitfield flags that control the flushing behavior. See |
| 480 | * FlushBits. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 481 | */ |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 482 | void flush(int flagsBitfield = 0); |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 483 | |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 484 | /** |
| 485 | * These flags can be used with the read/write pixels functions below. |
| 486 | */ |
| 487 | enum PixelOpsFlags { |
| 488 | /** The GrContext will not be flushed. This means that the read or write may occur before |
| 489 | previous draws have executed. */ |
| 490 | kDontFlush_PixelOpsFlag = 0x1, |
| 491 | /** The src for write or dst read is unpremultiplied. This is only respected if both the |
| 492 | config src and dst configs are an RGBA/BGRA 8888 format. */ |
| 493 | kUnpremul_PixelOpsFlag = 0x2, |
| 494 | }; |
| 495 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 496 | /** |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 497 | * Reads a rectangle of pixels from a render target. |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 498 | * @param target the render target to read from. NULL means the current render target. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 499 | * @param left left edge of the rectangle to read (inclusive) |
| 500 | * @param top top edge of the rectangle to read (inclusive) |
| 501 | * @param width width of rectangle to read in pixels. |
| 502 | * @param height height of rectangle to read in pixels. |
| 503 | * @param config the pixel config of the destination buffer |
| 504 | * @param buffer memory to read the rectangle into. |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 505 | * @param rowBytes number of bytes bewtween consecutive rows. Zero means rows are tightly |
| 506 | * packed. |
| 507 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 508 | * |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 509 | * @return true if the read succeeded, false if not. The read can fail because of an unsupported |
| 510 | * pixel config or because no render target is currently set and NULL was passed for |
| 511 | * target. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 512 | */ |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 513 | bool readRenderTargetPixels(GrRenderTarget* target, |
| 514 | int left, int top, int width, int height, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 515 | GrPixelConfig config, void* buffer, |
| 516 | size_t rowBytes = 0, |
| 517 | uint32_t pixelOpsFlags = 0); |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 518 | |
| 519 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 520 | * Copy the src pixels [buffer, row bytes, pixel config] into a render target at the specified |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 521 | * rectangle. |
| 522 | * @param target the render target to write into. NULL means the current render target. |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 523 | * @param left left edge of the rectangle to write (inclusive) |
| 524 | * @param top top edge of the rectangle to write (inclusive) |
| 525 | * @param width width of rectangle to write in pixels. |
| 526 | * @param height height of rectangle to write in pixels. |
| 527 | * @param config the pixel config of the source buffer |
| 528 | * @param buffer memory to read the rectangle from. |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 529 | * @param rowBytes number of bytes between consecutive rows. Zero means rows are tightly |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 530 | * packed. |
| 531 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 532 | */ |
| 533 | void writeRenderTargetPixels(GrRenderTarget* target, |
| 534 | int left, int top, int width, int height, |
| 535 | GrPixelConfig config, const void* buffer, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 536 | size_t rowBytes = 0, |
| 537 | uint32_t pixelOpsFlags = 0); |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 538 | |
| 539 | /** |
| 540 | * Reads a rectangle of pixels from a texture. |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 541 | * @param texture the texture to read from. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 542 | * @param left left edge of the rectangle to read (inclusive) |
| 543 | * @param top top edge of the rectangle to read (inclusive) |
| 544 | * @param width width of rectangle to read in pixels. |
| 545 | * @param height height of rectangle to read in pixels. |
| 546 | * @param config the pixel config of the destination buffer |
| 547 | * @param buffer memory to read the rectangle into. |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 548 | * @param rowBytes number of bytes between consecutive rows. Zero means rows are tightly |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 549 | * packed. |
| 550 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 551 | * |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 552 | * @return true if the read succeeded, false if not. The read can fail because of an unsupported |
| 553 | * pixel config. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 554 | */ |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 555 | bool readTexturePixels(GrTexture* texture, |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 556 | int left, int top, int width, int height, |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 557 | GrPixelConfig config, void* buffer, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 558 | size_t rowBytes = 0, |
| 559 | uint32_t pixelOpsFlags = 0); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 560 | |
| 561 | /** |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 562 | * Writes a rectangle of pixels to a texture. |
| 563 | * @param texture the render target to read from. |
| 564 | * @param left left edge of the rectangle to write (inclusive) |
| 565 | * @param top top edge of the rectangle to write (inclusive) |
| 566 | * @param width width of rectangle to write in pixels. |
| 567 | * @param height height of rectangle to write in pixels. |
| 568 | * @param config the pixel config of the source buffer |
| 569 | * @param buffer memory to read pixels from |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 570 | * @param rowBytes number of bytes between consecutive rows. Zero |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 571 | * means rows are tightly packed. |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 572 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 573 | */ |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 574 | void writeTexturePixels(GrTexture* texture, |
| 575 | int left, int top, int width, int height, |
| 576 | GrPixelConfig config, const void* buffer, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 577 | size_t rowBytes, |
| 578 | uint32_t pixelOpsFlags = 0); |
| 579 | |
| 580 | |
senorblanco@chromium.org | 027de5f | 2011-07-08 18:03:33 +0000 | [diff] [blame] | 581 | /** |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 582 | * Copies a rectangle of texels from src to dst. The size of dst is the size of the rectangle |
| 583 | * copied and topLeft is the position of the rect in src. The rectangle is clipped to src's |
| 584 | * bounds. |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 585 | * @param src the texture to copy from. |
| 586 | * @param dst the render target to copy to. |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 587 | * @param topLeft the point in src that will be copied to the top-left of dst. If NULL, |
| 588 | * (0, 0) will be used. |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 589 | */ |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 590 | void copyTexture(GrTexture* src, GrRenderTarget* dst, const SkIPoint* topLeft = NULL); |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 591 | |
| 592 | /** |
| 593 | * Resolves a render target that has MSAA. The intermediate MSAA buffer is |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 594 | * down-sampled to the associated GrTexture (accessible via |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 595 | * GrRenderTarget::asTexture()). Any pending draws to the render target will |
| 596 | * be executed before the resolve. |
| 597 | * |
| 598 | * This is only necessary when a client wants to access the object directly |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 599 | * using the backend API directly. GrContext will detect when it must |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 600 | * perform a resolve to a GrTexture used as the source of a draw or before |
| 601 | * reading pixels back from a GrTexture or GrRenderTarget. |
| 602 | */ |
| 603 | void resolveRenderTarget(GrRenderTarget* target); |
| 604 | |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 605 | /** |
senorblanco@chromium.org | 3b4dd90 | 2012-03-05 20:41:22 +0000 | [diff] [blame] | 606 | * Applies a 2D Gaussian blur to a given texture. |
| 607 | * @param srcTexture The source texture to be blurred. |
senorblanco@chromium.org | 1e95d71 | 2012-07-18 19:52:53 +0000 | [diff] [blame] | 608 | * @param canClobberSrc If true, srcTexture may be overwritten, and |
| 609 | * may be returned as the result. |
senorblanco@chromium.org | 3b4dd90 | 2012-03-05 20:41:22 +0000 | [diff] [blame] | 610 | * @param rect The destination rectangle. |
| 611 | * @param sigmaX The blur's standard deviation in X. |
| 612 | * @param sigmaY The blur's standard deviation in Y. |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 613 | * @return the blurred texture, which may be srcTexture reffed, or a |
senorblanco@chromium.org | 1e95d71 | 2012-07-18 19:52:53 +0000 | [diff] [blame] | 614 | * new texture. It is the caller's responsibility to unref this texture. |
senorblanco@chromium.org | 027de5f | 2011-07-08 18:03:33 +0000 | [diff] [blame] | 615 | */ |
senorblanco@chromium.org | 3b4dd90 | 2012-03-05 20:41:22 +0000 | [diff] [blame] | 616 | GrTexture* gaussianBlur(GrTexture* srcTexture, |
senorblanco@chromium.org | 1e95d71 | 2012-07-18 19:52:53 +0000 | [diff] [blame] | 617 | bool canClobberSrc, |
senorblanco@chromium.org | 3b4dd90 | 2012-03-05 20:41:22 +0000 | [diff] [blame] | 618 | const SkRect& rect, |
| 619 | float sigmaX, float sigmaY); |
| 620 | |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 621 | /** |
bsalomon@google.com | 82aa748 | 2012-08-13 14:22:17 +0000 | [diff] [blame] | 622 | * Zooms a subset of the texture to a larger size with a nice edge. |
| 623 | * The inner rectangle is a simple scaling of the texture by a factor of |
| 624 | * |zoom|. The outer |inset| pixels transition from the background texture |
| 625 | * to the zoomed coordinate system at a rate of |
| 626 | * (distance_to_edge / inset) ^2, producing a rounded lens effect. |
| 627 | * @param srcTexture The source texture to be zoomed. |
| 628 | * @param dstRect The destination rectangle. |
| 629 | * @param srcRect The source rectangle. Must be smaller than |
| 630 | * dstRect |
| 631 | * @param inset Number of pixels to blend along the edges. |
| 632 | * @return the zoomed texture, which is dstTexture. |
| 633 | */ |
| 634 | GrTexture* zoom(GrTexture* srcTexture, |
| 635 | const SkRect& dstRect, const SkRect& srcRect, float inset); |
| 636 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 637 | /////////////////////////////////////////////////////////////////////////// |
| 638 | // Helpers |
| 639 | |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 640 | class AutoRenderTarget : public ::GrNoncopyable { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 641 | public: |
| 642 | AutoRenderTarget(GrContext* context, GrRenderTarget* target) { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 643 | fPrevTarget = context->getRenderTarget(); |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 644 | GrSafeRef(fPrevTarget); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 645 | context->setRenderTarget(target); |
| 646 | fContext = context; |
| 647 | } |
| 648 | AutoRenderTarget(GrContext* context) { |
| 649 | fPrevTarget = context->getRenderTarget(); |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 650 | GrSafeRef(fPrevTarget); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 651 | fContext = context; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 652 | } |
| 653 | ~AutoRenderTarget() { |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 654 | if (NULL != fContext) { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 655 | fContext->setRenderTarget(fPrevTarget); |
| 656 | } |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 657 | GrSafeUnref(fPrevTarget); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 658 | } |
| 659 | private: |
| 660 | GrContext* fContext; |
| 661 | GrRenderTarget* fPrevTarget; |
| 662 | }; |
| 663 | |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 664 | /** |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 665 | * Save/restore the view-matrix in the context. It can optionally adjust a paint to account |
| 666 | * for a coordinate system change. Here is an example of how the paint param can be used: |
| 667 | * |
bsalomon@google.com | 6f261be | 2012-10-24 19:07:10 +0000 | [diff] [blame] | 668 | * A GrPaint is setup with GrEffects. The stages will have access to the pre-matrix source |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 669 | * geometry positions when the draw is executed. Later on a decision is made to transform the |
bsalomon@google.com | 6f261be | 2012-10-24 19:07:10 +0000 | [diff] [blame] | 670 | * geometry to device space on the CPU. The effects now need to know that the space in which |
| 671 | * the geometry will be specified has changed. |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 672 | * |
| 673 | * Note that when restore is called (or in the destructor) the context's matrix will be |
| 674 | * restored. However, the paint will not be restored. The caller must make a copy of the |
| 675 | * paint if necessary. Hint: use SkTCopyOnFirstWrite if the AutoMatrix is conditionally |
| 676 | * initialized. |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 677 | */ |
| 678 | class AutoMatrix : GrNoncopyable { |
| 679 | public: |
| 680 | AutoMatrix() : fContext(NULL) {} |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 681 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 682 | ~AutoMatrix() { this->restore(); } |
| 683 | |
| 684 | /** |
| 685 | * Initializes by pre-concat'ing the context's current matrix with the preConcat param. |
| 686 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 687 | void setPreConcat(GrContext* context, const SkMatrix& preConcat, GrPaint* paint = NULL) { |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 688 | GrAssert(NULL != context); |
| 689 | |
| 690 | this->restore(); |
skia.committer@gmail.com | f57c01b | 2012-10-13 02:01:56 +0000 | [diff] [blame] | 691 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 692 | fContext = context; |
| 693 | fMatrix = context->getMatrix(); |
| 694 | this->preConcat(preConcat, paint); |
| 695 | } |
| 696 | |
| 697 | /** |
| 698 | * Sets the context's matrix to identity. Returns false if the inverse matrix is required to |
| 699 | * update a paint but the matrix cannot be inverted. |
| 700 | */ |
| 701 | bool setIdentity(GrContext* context, GrPaint* paint = NULL) { |
| 702 | GrAssert(NULL != context); |
| 703 | |
| 704 | this->restore(); |
skia.committer@gmail.com | f57c01b | 2012-10-13 02:01:56 +0000 | [diff] [blame] | 705 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 706 | if (NULL != paint) { |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 707 | if (!paint->sourceCoordChangeByInverse(context->getMatrix())) { |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 708 | return false; |
| 709 | } |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 710 | } |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 711 | fMatrix = context->getMatrix(); |
| 712 | fContext = context; |
| 713 | context->setIdentityMatrix(); |
| 714 | return true; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 715 | } |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 716 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 717 | /** |
| 718 | * Replaces the context's matrix with a new matrix. Returns false if the inverse matrix is |
| 719 | * required to update a paint but the matrix cannot be inverted. |
| 720 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 721 | bool set(GrContext* context, const SkMatrix& newMatrix, GrPaint* paint = NULL) { |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 722 | if (NULL != paint) { |
| 723 | if (!this->setIdentity(context, paint)) { |
| 724 | return false; |
| 725 | } |
| 726 | this->preConcat(newMatrix, paint); |
| 727 | } else { |
| 728 | this->restore(); |
| 729 | fContext = context; |
| 730 | fMatrix = context->getMatrix(); |
| 731 | context->setMatrix(newMatrix); |
| 732 | } |
| 733 | return true; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 734 | } |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 735 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 736 | /** |
| 737 | * If this has been initialized then the context's matrix will be further updated by |
| 738 | * pre-concat'ing the preConcat param. The matrix that will be restored remains unchanged. |
| 739 | * The paint is assumed to be relative to the context's matrix at the time this call is |
| 740 | * made, not the matrix at the time AutoMatrix was first initialized. In other words, this |
| 741 | * performs an incremental update of the paint. |
| 742 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 743 | void preConcat(const SkMatrix& preConcat, GrPaint* paint = NULL) { |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 744 | if (NULL != paint) { |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 745 | paint->sourceCoordChange(preConcat); |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 746 | } |
| 747 | fContext->concatMatrix(preConcat); |
| 748 | } |
| 749 | |
| 750 | /** |
| 751 | * Returns false if never initialized or the inverse matrix was required to update a paint |
| 752 | * but the matrix could not be inverted. |
| 753 | */ |
| 754 | bool succeeded() const { return NULL != fContext; } |
| 755 | |
| 756 | /** |
| 757 | * If this has been initialized then the context's original matrix is restored. |
| 758 | */ |
| 759 | void restore() { |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 760 | if (NULL != fContext) { |
| 761 | fContext->setMatrix(fMatrix); |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 762 | fContext = NULL; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 763 | } |
| 764 | } |
| 765 | |
| 766 | private: |
| 767 | GrContext* fContext; |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 768 | SkMatrix fMatrix; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 769 | }; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 770 | |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 771 | class AutoClip : GrNoncopyable { |
| 772 | public: |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 773 | // This enum exists to require a caller of the constructor to acknowledge that the clip will |
| 774 | // initially be wide open. It also could be extended if there are other desirable initial |
| 775 | // clip states. |
| 776 | enum InitialClip { |
| 777 | kWideOpen_InitialClip, |
| 778 | }; |
| 779 | |
skia.committer@gmail.com | dc3a4e5 | 2012-10-02 02:01:24 +0000 | [diff] [blame] | 780 | AutoClip(GrContext* context, InitialClip initialState) |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 781 | : fContext(context) { |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 782 | GrAssert(kWideOpen_InitialClip == initialState); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 783 | fNewClipData.fClipStack = &fNewClipStack; |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 784 | |
| 785 | fOldClip = context->getClip(); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 786 | context->setClip(&fNewClipData); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 787 | } |
| 788 | |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 789 | AutoClip(GrContext* context, const GrRect& newClipRect) |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 790 | : fContext(context) |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 791 | , fNewClipStack(newClipRect) { |
| 792 | fNewClipData.fClipStack = &fNewClipStack; |
| 793 | |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 794 | fOldClip = fContext->getClip(); |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 795 | fContext->setClip(&fNewClipData); |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 796 | } |
| 797 | |
| 798 | ~AutoClip() { |
| 799 | if (NULL != fContext) { |
| 800 | fContext->setClip(fOldClip); |
| 801 | } |
| 802 | } |
| 803 | private: |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 804 | GrContext* fContext; |
| 805 | const GrClipData* fOldClip; |
| 806 | |
robertphillips@google.com | 641f8b1 | 2012-07-31 19:15:58 +0000 | [diff] [blame] | 807 | SkClipStack fNewClipStack; |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 808 | GrClipData fNewClipData; |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 809 | }; |
| 810 | |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 811 | class AutoWideOpenIdentityDraw { |
| 812 | public: |
| 813 | AutoWideOpenIdentityDraw(GrContext* ctx, GrRenderTarget* rt) |
| 814 | : fAutoClip(ctx, AutoClip::kWideOpen_InitialClip) |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 815 | , fAutoRT(ctx, rt) { |
| 816 | fAutoMatrix.setIdentity(ctx); |
| 817 | // should never fail with no paint param. |
| 818 | GrAssert(fAutoMatrix.succeeded()); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 819 | } |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 820 | |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 821 | private: |
| 822 | AutoClip fAutoClip; |
| 823 | AutoRenderTarget fAutoRT; |
| 824 | AutoMatrix fAutoMatrix; |
| 825 | }; |
| 826 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 827 | /////////////////////////////////////////////////////////////////////////// |
| 828 | // Functions intended for internal use only. |
| 829 | GrGpu* getGpu() { return fGpu; } |
bsalomon@google.com | 1f221a7 | 2011-08-23 20:54:07 +0000 | [diff] [blame] | 830 | const GrGpu* getGpu() const { return fGpu; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 831 | GrFontCache* getFontCache() { return fFontCache; } |
| 832 | GrDrawTarget* getTextTarget(const GrPaint& paint); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 833 | const GrIndexBuffer* getQuadIndexBuffer() const; |
bsalomon@google.com | 9923c2b | 2012-06-06 18:21:18 +0000 | [diff] [blame] | 834 | |
bsalomon@google.com | 558a75b | 2011-08-08 17:01:14 +0000 | [diff] [blame] | 835 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 836 | * Stencil buffers add themselves to the cache using addStencilBuffer. findStencilBuffer is |
| 837 | * called to check the cache for a SB that matches an RT's criteria. |
bsalomon@google.com | 558a75b | 2011-08-08 17:01:14 +0000 | [diff] [blame] | 838 | */ |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 839 | void addStencilBuffer(GrStencilBuffer* sb); |
| 840 | GrStencilBuffer* findStencilBuffer(int width, int height, int sampleCnt); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 841 | |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 842 | GrPathRenderer* getPathRenderer( |
| 843 | const SkPath& path, |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 844 | const SkStrokeRec& stroke, |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 845 | const GrDrawTarget* target, |
| 846 | bool allowSW, |
| 847 | GrPathRendererChain::DrawType drawType = GrPathRendererChain::kColor_DrawType, |
| 848 | GrPathRendererChain::StencilSupport* stencilSupport = NULL); |
robertphillips@google.com | 2c75681 | 2012-05-22 20:28:23 +0000 | [diff] [blame] | 849 | |
robertphillips@google.com | 5955202 | 2012-08-31 13:07:37 +0000 | [diff] [blame] | 850 | #if GR_CACHE_STATS |
robertphillips@google.com | 5f9f2f5 | 2012-08-22 10:57:05 +0000 | [diff] [blame] | 851 | void printCacheStats() const; |
| 852 | #endif |
| 853 | |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 854 | /////////////////////////////////////////////////////////////////////////// |
| 855 | // Legacy names that will be kept until WebKit can be updated. |
| 856 | GrTexture* createPlatformTexture(const GrPlatformTextureDesc& desc) { |
| 857 | return this->wrapBackendTexture(desc); |
| 858 | } |
skia.committer@gmail.com | 27b40e9 | 2012-10-26 02:01:24 +0000 | [diff] [blame] | 859 | |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 860 | GrRenderTarget* createPlatformRenderTarget(const GrPlatformRenderTargetDesc& desc) { |
| 861 | return wrapBackendRenderTarget(desc); |
| 862 | } |
| 863 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 864 | private: |
bsalomon@google.com | 1d4edd3 | 2012-08-16 18:36:06 +0000 | [diff] [blame] | 865 | // Used to indicate whether a draw should be performed immediately or queued in fDrawBuffer. |
| 866 | enum BufferedDraw { |
| 867 | kYes_BufferedDraw, |
| 868 | kNo_BufferedDraw, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 869 | }; |
bsalomon@google.com | 1d4edd3 | 2012-08-16 18:36:06 +0000 | [diff] [blame] | 870 | BufferedDraw fLastDrawWasBuffered; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 871 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 872 | GrGpu* fGpu; |
bsalomon@google.com | 10e04bf | 2012-03-30 14:35:04 +0000 | [diff] [blame] | 873 | GrDrawState* fDrawState; |
| 874 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 875 | GrResourceCache* fTextureCache; |
| 876 | GrFontCache* fFontCache; |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 877 | |
bsalomon@google.com | 3008519 | 2011-08-19 15:42:31 +0000 | [diff] [blame] | 878 | GrPathRendererChain* fPathRendererChain; |
robertphillips@google.com | 72176b2 | 2012-05-23 13:19:12 +0000 | [diff] [blame] | 879 | GrSoftwarePathRenderer* fSoftwarePathRenderer; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 880 | |
| 881 | GrVertexBufferAllocPool* fDrawBufferVBAllocPool; |
| 882 | GrIndexBufferAllocPool* fDrawBufferIBAllocPool; |
| 883 | GrInOrderDrawBuffer* fDrawBuffer; |
| 884 | |
robertphillips@google.com | f69a11b | 2012-06-15 13:58:07 +0000 | [diff] [blame] | 885 | GrAARectRenderer* fAARectRenderer; |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 886 | |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 887 | bool fDidTestPMConversions; |
| 888 | int fPMToUPMConversion; |
| 889 | int fUPMToPMConversion; |
| 890 | |
robertphillips@google.com | cdb426d | 2012-09-24 19:33:59 +0000 | [diff] [blame] | 891 | struct CleanUpData { |
| 892 | PFCleanUpFunc fFunc; |
| 893 | void* fInfo; |
| 894 | }; |
| 895 | |
| 896 | SkTDArray<CleanUpData> fCleanUpData; |
| 897 | |
robertphillips@google.com | f69a11b | 2012-06-15 13:58:07 +0000 | [diff] [blame] | 898 | GrContext(GrGpu* gpu); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 899 | |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 900 | void setupDrawBuffer(); |
| 901 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 902 | void flushDrawBuffer(); |
| 903 | |
bsalomon@google.com | 07ea2db | 2012-08-17 14:06:49 +0000 | [diff] [blame] | 904 | /// Sets the paint and returns the target to draw into. The paint can be NULL in which case the |
| 905 | /// draw state is left unmodified. |
| 906 | GrDrawTarget* prepareToDraw(const GrPaint*, BufferedDraw); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 907 | |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 908 | void internalDrawPath(const GrPaint& paint, const SkPath& path, const SkStrokeRec& stroke); |
bsalomon@google.com | 93c9660 | 2012-04-27 13:05:21 +0000 | [diff] [blame] | 909 | |
jvanverth@google.com | 46d3d39 | 2013-01-22 13:34:01 +0000 | [diff] [blame^] | 910 | void internalDrawOval(const GrPaint& paint, const GrRect& oval, const SkStrokeRec& stroke); |
| 911 | bool canDrawOval(const GrPaint& paint, const GrRect& oval, const SkStrokeRec& stroke) const; |
| 912 | |
robertphillips@google.com | 3319f33 | 2012-08-13 18:00:36 +0000 | [diff] [blame] | 913 | GrTexture* createResizedTexture(const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 914 | const GrCacheID& cacheID, |
robertphillips@google.com | 3319f33 | 2012-08-13 18:00:36 +0000 | [diff] [blame] | 915 | void* srcData, |
| 916 | size_t rowBytes, |
| 917 | bool needsFiltering); |
| 918 | |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 919 | // Needed so GrTexture's returnToCache helper function can call |
| 920 | // addExistingTextureToCache |
| 921 | friend class GrTexture; |
| 922 | |
| 923 | // Add an existing texture to the texture cache. This is intended solely |
| 924 | // for use with textures released from an GrAutoScratchTexture. |
| 925 | void addExistingTextureToCache(GrTexture* texture); |
reed@google.com | fa35e3d | 2012-06-26 20:16:17 +0000 | [diff] [blame] | 926 | |
bsalomon@google.com | d8b5fac | 2012-11-01 17:02:46 +0000 | [diff] [blame] | 927 | bool installPMToUPMEffect(GrTexture* texture, |
| 928 | bool swapRAndB, |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 929 | const SkMatrix& matrix, |
bsalomon@google.com | d8b5fac | 2012-11-01 17:02:46 +0000 | [diff] [blame] | 930 | GrEffectStage* stage); |
| 931 | bool installUPMToPMEffect(GrTexture* texture, |
| 932 | bool swapRAndB, |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 933 | const SkMatrix& matrix, |
bsalomon@google.com | d8b5fac | 2012-11-01 17:02:46 +0000 | [diff] [blame] | 934 | GrEffectStage* stage); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 935 | |
reed@google.com | fa35e3d | 2012-06-26 20:16:17 +0000 | [diff] [blame] | 936 | typedef GrRefCnt INHERITED; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 937 | }; |
| 938 | |
| 939 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 940 | * Gets and locks a scratch texture from a descriptor using either exact or approximate criteria. |
| 941 | * Unlocks texture in the destructor. |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 942 | */ |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 943 | class GrAutoScratchTexture : ::GrNoncopyable { |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 944 | public: |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 945 | GrAutoScratchTexture() |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 946 | : fContext(NULL) |
| 947 | , fTexture(NULL) { |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 948 | } |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 949 | |
| 950 | GrAutoScratchTexture(GrContext* context, |
| 951 | const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 952 | GrContext::ScratchTexMatch match = GrContext::kApprox_ScratchTexMatch) |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 953 | : fContext(NULL) |
| 954 | , fTexture(NULL) { |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 955 | this->set(context, desc, match); |
| 956 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 957 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 958 | ~GrAutoScratchTexture() { |
robertphillips@google.com | 9ec0753 | 2012-06-22 12:01:30 +0000 | [diff] [blame] | 959 | this->reset(); |
| 960 | } |
| 961 | |
| 962 | void reset() { |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 963 | if (NULL != fContext && NULL != fTexture) { |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 964 | fContext->unlockScratchTexture(fTexture); |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 965 | fTexture = NULL; |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 966 | } |
| 967 | } |
bsalomon@google.com | 8422311 | 2011-07-14 14:45:44 +0000 | [diff] [blame] | 968 | |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 969 | /* |
| 970 | * When detaching a texture we do not unlock it in the texture cache but |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 971 | * we do set the returnToCache flag. In this way the texture remains |
| 972 | * "locked" in the texture cache until it is freed and recycled in |
| 973 | * GrTexture::internal_dispose. In reality, the texture has been removed |
| 974 | * from the cache (because this is in AutoScratchTexture) and by not |
| 975 | * calling unlockTexture we simply don't re-add it. It will be reattached |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 976 | * in GrTexture::internal_dispose. |
| 977 | * |
| 978 | * Note that the caller is assumed to accept and manage the ref to the |
| 979 | * returned texture. |
| 980 | */ |
| 981 | GrTexture* detach() { |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 982 | GrTexture* temp = fTexture; |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 983 | |
robertphillips@google.com | 521eaf8 | 2012-08-22 11:03:19 +0000 | [diff] [blame] | 984 | // Conceptually the texture's cache entry loses its ref to the |
| 985 | // texture while the caller of this method gets a ref. |
| 986 | GrAssert(NULL != temp->getCacheEntry()); |
| 987 | |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 988 | fTexture = NULL; |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 989 | |
| 990 | temp->setFlag((GrTextureFlags) GrTexture::kReturnToCache_FlagBit); |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 991 | return temp; |
| 992 | } |
| 993 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 994 | GrTexture* set(GrContext* context, |
| 995 | const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 996 | GrContext::ScratchTexMatch match = GrContext::kApprox_ScratchTexMatch) { |
robertphillips@google.com | 9ec0753 | 2012-06-22 12:01:30 +0000 | [diff] [blame] | 997 | this->reset(); |
| 998 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 999 | fContext = context; |
| 1000 | if (NULL != fContext) { |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1001 | fTexture = fContext->lockScratchTexture(desc, match); |
| 1002 | if (NULL == fTexture) { |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1003 | fContext = NULL; |
| 1004 | } |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1005 | return fTexture; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1006 | } else { |
| 1007 | return NULL; |
| 1008 | } |
| 1009 | } |
| 1010 | |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1011 | GrTexture* texture() { return fTexture; } |
| 1012 | |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 1013 | private: |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1014 | GrContext* fContext; |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1015 | GrTexture* fTexture; |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 1016 | }; |
| 1017 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 1018 | #endif |