bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 1 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 2 | * Copyright 2010 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #ifndef GrContext_DEFINED |
| 9 | #define GrContext_DEFINED |
| 10 | |
robertphillips@google.com | a2d7148 | 2012-08-01 20:08:47 +0000 | [diff] [blame] | 11 | #include "GrClipData.h" |
commit-bot@chromium.org | a0b4028 | 2013-09-18 13:00:55 +0000 | [diff] [blame] | 12 | #include "GrColor.h" |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 13 | #include "GrPaint.h" |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 14 | #include "GrPathRendererChain.h" |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 15 | #include "GrPoint.h" |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 16 | #include "GrRenderTarget.h" |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 17 | #include "GrTexture.h" |
commit-bot@chromium.org | a0b4028 | 2013-09-18 13:00:55 +0000 | [diff] [blame] | 18 | #include "SkMatrix.h" |
| 19 | #include "SkTypes.h" |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 20 | |
jvanverth@google.com | bfe2b9d | 2013-09-06 16:57:29 +0000 | [diff] [blame] | 21 | class GrAARectRenderer; |
senorblanco@chromium.org | 3b4dd90 | 2012-03-05 20:41:22 +0000 | [diff] [blame] | 22 | class GrAutoScratchTexture; |
commit-bot@chromium.org | 089a780 | 2014-05-02 21:38:22 +0000 | [diff] [blame] | 23 | class GrCacheable; |
bsalomon@google.com | 10e04bf | 2012-03-30 14:35:04 +0000 | [diff] [blame] | 24 | class GrDrawState; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 25 | class GrDrawTarget; |
bsalomon@google.com | a469c28 | 2012-10-24 18:28:34 +0000 | [diff] [blame] | 26 | class GrEffect; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 27 | class GrFontCache; |
bsalomon@google.com | 05ef510 | 2011-05-02 21:14:59 +0000 | [diff] [blame] | 28 | class GrGpu; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 29 | class GrIndexBuffer; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 30 | class GrIndexBufferAllocPool; |
| 31 | class GrInOrderDrawBuffer; |
robertphillips@google.com | e930a07 | 2014-04-03 00:34:27 +0000 | [diff] [blame] | 32 | class GrLayerCache; |
commit-bot@chromium.org | 8131283 | 2013-03-22 18:34:09 +0000 | [diff] [blame] | 33 | class GrOvalRenderer; |
commit-bot@chromium.org | 5c8ee25 | 2013-11-01 15:23:44 +0000 | [diff] [blame] | 34 | class GrPath; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 35 | class GrPathRenderer; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 36 | class GrResourceEntry; |
| 37 | class GrResourceCache; |
bsalomon@google.com | 558a75b | 2011-08-08 17:01:14 +0000 | [diff] [blame] | 38 | class GrStencilBuffer; |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 39 | class GrTestTarget; |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 40 | class GrTextureParams; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 41 | class GrVertexBuffer; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 42 | class GrVertexBufferAllocPool; |
robertphillips@google.com | 72176b2 | 2012-05-23 13:19:12 +0000 | [diff] [blame] | 43 | class GrSoftwarePathRenderer; |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 44 | class SkStrokeRec; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 45 | |
commit-bot@chromium.org | a4de8c2 | 2013-09-09 13:38:37 +0000 | [diff] [blame] | 46 | class SK_API GrContext : public SkRefCnt { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 47 | public: |
reed@google.com | fa35e3d | 2012-06-26 20:16:17 +0000 | [diff] [blame] | 48 | SK_DECLARE_INST_COUNT(GrContext) |
| 49 | |
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 | * Creates a GrContext for a backend context. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 52 | */ |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 53 | static GrContext* Create(GrBackend, GrBackendContext); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 54 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 55 | virtual ~GrContext(); |
| 56 | |
| 57 | /** |
| 58 | * The GrContext normally assumes that no outsider is setting state |
| 59 | * within the underlying 3D API's context/device/whatever. This call informs |
| 60 | * the context that the state was modified and it should resend. Shouldn't |
| 61 | * be called frequently for good performance. |
bsalomon@google.com | 0a208a1 | 2013-06-28 18:57:35 +0000 | [diff] [blame] | 62 | * The flag bits, state, is dpendent on which backend is used by the |
| 63 | * context, either GL or D3D (possible in future). |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 64 | */ |
bsalomon@google.com | 0a208a1 | 2013-06-28 18:57:35 +0000 | [diff] [blame] | 65 | void resetContext(uint32_t state = kAll_GrBackendState); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 66 | |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 67 | /** |
robertphillips@google.com | cdb426d | 2012-09-24 19:33:59 +0000 | [diff] [blame] | 68 | * Callback function to allow classes to cleanup on GrContext destruction. |
| 69 | * The 'info' field is filled in with the 'info' passed to addCleanUp. |
| 70 | */ |
| 71 | typedef void (*PFCleanUpFunc)(const GrContext* context, void* info); |
| 72 | |
| 73 | /** |
| 74 | * Add a function to be called from within GrContext's destructor. |
| 75 | * This gives classes a chance to free resources held on a per context basis. |
| 76 | * The 'info' parameter will be stored and passed to the callback function. |
| 77 | */ |
| 78 | void addCleanUp(PFCleanUpFunc cleanUp, void* info) { |
| 79 | CleanUpData* entry = fCleanUpData.push(); |
| 80 | |
| 81 | entry->fFunc = cleanUp; |
| 82 | entry->fInfo = info; |
| 83 | } |
| 84 | |
| 85 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 86 | * 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] | 87 | * if you have lost the associated GPU context, and thus internal texture, |
| 88 | * buffer, etc. references/IDs are now invalid. Should be called even when |
| 89 | * GrContext is no longer going to be used for two reasons: |
| 90 | * 1) ~GrContext will not try to free the objects in the 3D API. |
commit-bot@chromium.org | 089a780 | 2014-05-02 21:38:22 +0000 | [diff] [blame] | 91 | * 2) If you've created GrGpuObjects that outlive the GrContext they will |
| 92 | * be marked as invalid (GrGpuObjects::isValid()) and won't attempt to |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 93 | * free their underlying resource in the 3D API. |
| 94 | * Content drawn since the last GrContext::flush() may be lost. |
| 95 | */ |
| 96 | void contextLost(); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 97 | |
| 98 | /** |
junov@google.com | 53a5584 | 2011-06-08 22:55:10 +0000 | [diff] [blame] | 99 | * Similar to contextLost, but makes no attempt to reset state. |
| 100 | * Use this method when GrContext destruction is pending, but |
| 101 | * the graphics context is destroyed first. |
| 102 | */ |
| 103 | void contextDestroyed(); |
| 104 | |
commit-bot@chromium.org | 95c2003 | 2014-05-09 14:29:32 +0000 | [diff] [blame^] | 105 | /////////////////////////////////////////////////////////////////////////// |
| 106 | // Resource Cache |
| 107 | |
| 108 | /** |
| 109 | * Return the current GPU resource cache limits. |
| 110 | * |
| 111 | * @param maxResources If non-null, returns maximum number of resources that |
| 112 | * can be held in the cache. |
| 113 | * @param maxResourceBytes If non-null, returns maximum number of bytes of |
| 114 | * video memory that can be held in the cache. |
| 115 | */ |
| 116 | void getResourceCacheLimits(int* maxResources, size_t* maxResourceBytes) const; |
| 117 | SK_ATTR_DEPRECATED("This function has been renamed to getResourceCacheLimits().") |
| 118 | void getTextureCacheLimits(int* maxTextures, size_t* maxTextureBytes) const { |
| 119 | this->getResourceCacheLimits(maxTextures, maxTextureBytes); |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Gets the current GPU resource cache usage. |
| 124 | * |
| 125 | * @param resourceCount If non-null, returns the number of resources that are held in the |
| 126 | * cache. |
| 127 | * @param maxResourceBytes If non-null, returns the total number of bytes of video memory held |
| 128 | * in the cache. |
| 129 | */ |
| 130 | void getResourceCacheUsage(int* resourceCount, size_t* resourceBytes) const; |
| 131 | |
| 132 | SK_ATTR_DEPRECATED("Use getResourceCacheUsage().") |
| 133 | size_t getGpuTextureCacheBytes() const { |
| 134 | size_t bytes; |
| 135 | this->getResourceCacheUsage(NULL, &bytes); |
| 136 | return bytes; |
| 137 | } |
| 138 | |
| 139 | SK_ATTR_DEPRECATED("Use getResourceCacheUsage().") |
| 140 | int getGpuTextureCacheResourceCount() const { |
| 141 | int count; |
| 142 | this->getResourceCacheUsage(&count, NULL); |
| 143 | return count; |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Specify the GPU resource cache limits. If the current cache exceeds either |
| 148 | * of these, it will be purged (LRU) to keep the cache within these limits. |
| 149 | * |
| 150 | * @param maxResources The maximum number of resources that can be held in |
| 151 | * the cache. |
| 152 | * @param maxResourceBytes The maximum number of bytes of video memory |
| 153 | * that can be held in the cache. |
| 154 | */ |
| 155 | void setResourceCacheLimits(int maxResources, size_t maxResourceBytes); |
| 156 | SK_ATTR_DEPRECATED("This function has been renamed to setResourceCacheLimits().") |
| 157 | void setTextureCacheLimits(int maxTextures, size_t maxTextureBytes) { |
| 158 | this->setResourceCacheLimits(maxTextures, maxTextureBytes); |
| 159 | } |
| 160 | |
junov@google.com | 53a5584 | 2011-06-08 22:55:10 +0000 | [diff] [blame] | 161 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 162 | * 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] | 163 | * pressure. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 164 | */ |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 165 | void freeGpuResources(); |
| 166 | |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 167 | /** |
commit-bot@chromium.org | 95c2003 | 2014-05-09 14:29:32 +0000 | [diff] [blame^] | 168 | * This method should be called whenever a GrResource is unreffed or |
| 169 | * switched from exclusive to non-exclusive. This |
| 170 | * gives the resource cache a chance to discard unneeded resources. |
| 171 | * Note: this entry point will be removed once totally ref-driven |
| 172 | * cache maintenance is implemented. |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 173 | */ |
commit-bot@chromium.org | 95c2003 | 2014-05-09 14:29:32 +0000 | [diff] [blame^] | 174 | void purgeCache(); |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 175 | |
commit-bot@chromium.org | d8a57af | 2014-03-19 21:19:16 +0000 | [diff] [blame] | 176 | /** |
commit-bot@chromium.org | 95c2003 | 2014-05-09 14:29:32 +0000 | [diff] [blame^] | 177 | * Purge all the unlocked resources from the cache. |
| 178 | * This entry point is mainly meant for timing texture uploads |
| 179 | * and is not defined in normal builds of Skia. |
commit-bot@chromium.org | d8a57af | 2014-03-19 21:19:16 +0000 | [diff] [blame] | 180 | */ |
commit-bot@chromium.org | 95c2003 | 2014-05-09 14:29:32 +0000 | [diff] [blame^] | 181 | void purgeAllUnlockedResources(); |
| 182 | |
| 183 | /** |
| 184 | * Stores a custom resource in the cache, based on the specified key. |
| 185 | */ |
| 186 | void addResourceToCache(const GrResourceKey&, GrCacheable*); |
| 187 | |
| 188 | /** |
| 189 | * Finds a resource in the cache, based on the specified key. This is intended for use in |
| 190 | * conjunction with addResourceToCache(). The return value will be NULL if not found. The |
| 191 | * caller must balance with a call to unref(). |
| 192 | */ |
| 193 | GrCacheable* findAndRefCachedResource(const GrResourceKey&); |
commit-bot@chromium.org | d8a57af | 2014-03-19 21:19:16 +0000 | [diff] [blame] | 194 | |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 195 | /////////////////////////////////////////////////////////////////////////// |
| 196 | // Textures |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 197 | |
| 198 | /** |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 199 | * Creates a new entry, based on the specified key and texture and returns it. The caller owns a |
| 200 | * ref on the returned texture which must be balanced by a call to unref. |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 201 | * |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 202 | * @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] | 203 | * the cache entry used. (e.g. different versions may exist |
| 204 | * for different wrap modes on GPUs with limited NPOT |
| 205 | * texture support). NULL implies clamp wrap modes. |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 206 | * @param desc Description of the texture properties. |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 207 | * @param cacheID Cache-specific properties (e.g., texture gen ID) |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 208 | * @param srcData Pointer to the pixel values. |
| 209 | * @param rowBytes The number of bytes between rows of the texture. Zero |
| 210 | * implies tightly packed rows. |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 211 | * @param cacheKey (optional) If non-NULL, we'll write the cache key we used to cacheKey. |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 212 | */ |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 213 | GrTexture* createTexture(const GrTextureParams* params, |
| 214 | const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 215 | const GrCacheID& cacheID, |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 216 | void* srcData, |
| 217 | size_t rowBytes, |
| 218 | GrResourceKey* cacheKey = NULL); |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 219 | |
| 220 | /** |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 221 | * Search for an entry based on key and dimensions. If found, ref it and return it. The return |
| 222 | * value will be NULL if not found. The caller must balance with a call to unref. |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 223 | * |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 224 | * @param desc Description of the texture properties. |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 225 | * @param cacheID Cache-specific properties (e.g., texture gen ID) |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 226 | * @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] | 227 | * the cache entry used. (e.g. different versions may exist |
| 228 | * for different wrap modes on GPUs with limited NPOT |
| 229 | * texture support). NULL implies clamp wrap modes. |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 230 | */ |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 231 | GrTexture* findAndRefTexture(const GrTextureDesc& desc, |
| 232 | const GrCacheID& cacheID, |
| 233 | const GrTextureParams* params); |
bsalomon@google.com | fb30951 | 2011-11-30 14:13:48 +0000 | [diff] [blame] | 234 | /** |
| 235 | * Determines whether a texture is in the cache. If the texture is found it |
| 236 | * will not be locked or returned. This call does not affect the priority of |
| 237 | * the texture for deletion. |
| 238 | */ |
robertphillips@google.com | 75b3c96 | 2012-06-07 12:08:45 +0000 | [diff] [blame] | 239 | bool isTextureInCache(const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 240 | const GrCacheID& cacheID, |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 241 | const GrTextureParams* params) const; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 242 | |
| 243 | /** |
| 244 | * Enum that determines how closely a returned scratch texture must match |
| 245 | * a provided GrTextureDesc. |
| 246 | */ |
| 247 | enum ScratchTexMatch { |
| 248 | /** |
| 249 | * Finds a texture that exactly matches the descriptor. |
| 250 | */ |
| 251 | kExact_ScratchTexMatch, |
| 252 | /** |
| 253 | * Finds a texture that approximately matches the descriptor. Will be |
| 254 | * at least as large in width and height as desc specifies. If desc |
| 255 | * specifies that texture is a render target then result will be a |
| 256 | * render target. If desc specifies a render target and doesn't set the |
| 257 | * no stencil flag then result will have a stencil. Format and aa level |
| 258 | * will always match. |
| 259 | */ |
| 260 | kApprox_ScratchTexMatch |
| 261 | }; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 262 | |
| 263 | /** |
bsalomon@google.com | fea37b5 | 2011-04-25 15:51:06 +0000 | [diff] [blame] | 264 | * Returns a texture matching the desc. It's contents are unknown. Subsequent |
| 265 | * requests with the same descriptor are not guaranteed to return the same |
| 266 | * texture. The same texture is guaranteed not be returned again until it is |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 267 | * unlocked. Call must be balanced with an unlockTexture() call. The caller |
| 268 | * owns a ref on the returned texture and must balance with a call to unref. |
bsalomon@google.com | a39f404 | 2011-04-26 13:18:16 +0000 | [diff] [blame] | 269 | * |
| 270 | * Textures created by createAndLockTexture() hide the complications of |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 271 | * 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] | 272 | * unextended GLES2). Tiling a NPOT texture created by lockScratchTexture on |
bsalomon@google.com | a39f404 | 2011-04-26 13:18:16 +0000 | [diff] [blame] | 273 | * such an API will create gaps in the tiling pattern. This includes clamp |
| 274 | * mode. (This may be addressed in a future update.) |
bsalomon@google.com | fea37b5 | 2011-04-25 15:51:06 +0000 | [diff] [blame] | 275 | */ |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 276 | GrTexture* lockAndRefScratchTexture(const GrTextureDesc&, ScratchTexMatch match); |
bsalomon@google.com | b5b3168 | 2011-06-16 18:05:35 +0000 | [diff] [blame] | 277 | |
| 278 | /** |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 279 | * When done with an entry, call unlockScratchTexture(entry) on it, which returns |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 280 | * it to the cache, where it may be purged. This does not unref the texture. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 281 | */ |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 282 | void unlockScratchTexture(GrTexture* texture); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 283 | |
| 284 | /** |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 285 | * Creates a texture that is outside the cache. Does not count against |
| 286 | * cache's budget. |
| 287 | */ |
robertphillips@google.com | 75b3c96 | 2012-06-07 12:08:45 +0000 | [diff] [blame] | 288 | GrTexture* createUncachedTexture(const GrTextureDesc& desc, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 289 | void* srcData, |
| 290 | size_t rowBytes); |
| 291 | |
| 292 | /** |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 293 | * Returns true if the specified use of an indexed texture is supported. |
| 294 | * Support may depend upon whether the texture params indicate that the |
| 295 | * texture will be tiled. Passing NULL for the texture params indicates |
| 296 | * clamp mode. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 297 | */ |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 298 | bool supportsIndex8PixelConfig(const GrTextureParams*, |
bsalomon@google.com | 1f221a7 | 2011-08-23 20:54:07 +0000 | [diff] [blame] | 299 | int width, |
| 300 | int height) const; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 301 | |
| 302 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 303 | * 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] | 304 | */ |
bsalomon@google.com | 9195836 | 2011-06-13 17:58:13 +0000 | [diff] [blame] | 305 | int getMaxTextureSize() const; |
| 306 | |
robertphillips@google.com | 44a91dc | 2013-07-25 15:32:06 +0000 | [diff] [blame] | 307 | /** |
skia.committer@gmail.com | 956b310 | 2013-07-26 07:00:58 +0000 | [diff] [blame] | 308 | * Temporarily override the true max texture size. Note: an override |
robertphillips@google.com | 44a91dc | 2013-07-25 15:32:06 +0000 | [diff] [blame] | 309 | * larger then the true max texture size will have no effect. |
| 310 | * This entry point is mainly meant for testing texture size dependent |
| 311 | * features and is only available if defined outside of Skia (see |
| 312 | * bleed GM. |
| 313 | */ |
| 314 | void setMaxTextureSizeOverride(int maxTextureSizeOverride); |
| 315 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 316 | /////////////////////////////////////////////////////////////////////////// |
| 317 | // Render targets |
| 318 | |
| 319 | /** |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 320 | * Sets the render target. |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 321 | * @param target the render target to set. |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 322 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 323 | void setRenderTarget(GrRenderTarget* target) { |
| 324 | fRenderTarget.reset(SkSafeRef(target)); |
| 325 | } |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 326 | |
| 327 | /** |
| 328 | * Gets the current render target. |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 329 | * @return the currently bound render target. |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 330 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 331 | const GrRenderTarget* getRenderTarget() const { return fRenderTarget.get(); } |
| 332 | GrRenderTarget* getRenderTarget() { return fRenderTarget.get(); } |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 333 | |
robertphillips@google.com | 99a5ac0 | 2012-04-10 19:26:38 +0000 | [diff] [blame] | 334 | /** |
| 335 | * Can the provided configuration act as a color render target? |
| 336 | */ |
commit-bot@chromium.org | 6b7938f | 2013-10-15 14:18:16 +0000 | [diff] [blame] | 337 | bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const; |
robertphillips@google.com | 99a5ac0 | 2012-04-10 19:26:38 +0000 | [diff] [blame] | 338 | |
bsalomon@google.com | 8a70eef | 2013-03-19 13:58:55 +0000 | [diff] [blame] | 339 | /** |
| 340 | * Return the max width or height of a render target supported by the |
| 341 | * current GPU. |
| 342 | */ |
| 343 | int getMaxRenderTargetSize() const; |
| 344 | |
| 345 | /** |
| 346 | * Returns the max sample count for a render target. It will be 0 if MSAA |
| 347 | * is not supported. |
| 348 | */ |
| 349 | int getMaxSampleCount() const; |
| 350 | |
commit-bot@chromium.org | b471a32 | 2014-03-10 07:40:03 +0000 | [diff] [blame] | 351 | /** |
| 352 | * Returns the recommended sample count for a render target when using this |
| 353 | * context. |
| 354 | * |
| 355 | * @param config the configuration of the render target. |
| 356 | * @param dpi the display density in dots per inch. |
| 357 | * |
| 358 | * @return sample count that should be perform well and have good enough |
| 359 | * rendering quality for the display. Alternatively returns 0 if |
| 360 | * MSAA is not supported or recommended to be used by default. |
| 361 | */ |
| 362 | int getRecommendedSampleCount(GrPixelConfig config, SkScalar dpi) const; |
| 363 | |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 364 | /////////////////////////////////////////////////////////////////////////// |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 365 | // Backend Surfaces |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 366 | |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 367 | /** |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 368 | * Wraps an existing texture with a GrTexture object. |
| 369 | * |
| 370 | * OpenGL: if the object is a texture Gr may change its GL texture params |
| 371 | * when it is drawn. |
| 372 | * |
| 373 | * @param desc description of the object to create. |
| 374 | * |
| 375 | * @return GrTexture object or NULL on failure. |
| 376 | */ |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 377 | GrTexture* wrapBackendTexture(const GrBackendTextureDesc& desc); |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 378 | |
| 379 | /** |
| 380 | * Wraps an existing render target with a GrRenderTarget object. It is |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 381 | * similar to wrapBackendTexture but can be used to draw into surfaces |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 382 | * that are not also textures (e.g. FBO 0 in OpenGL, or an MSAA buffer that |
| 383 | * the client will resolve to a texture). |
| 384 | * |
| 385 | * @param desc description of the object to create. |
| 386 | * |
| 387 | * @return GrTexture object or NULL on failure. |
| 388 | */ |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 389 | GrRenderTarget* wrapBackendRenderTarget(const GrBackendRenderTargetDesc& desc); |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 390 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 391 | /////////////////////////////////////////////////////////////////////////// |
| 392 | // Matrix state |
| 393 | |
| 394 | /** |
| 395 | * Gets the current transformation matrix. |
| 396 | * @return the current matrix. |
| 397 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 398 | const SkMatrix& getMatrix() const { return fViewMatrix; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 399 | |
| 400 | /** |
| 401 | * Sets the transformation matrix. |
| 402 | * @param m the matrix to set. |
| 403 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 404 | void setMatrix(const SkMatrix& m) { fViewMatrix = m; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 405 | |
| 406 | /** |
bsalomon@google.com | 0f11e1a | 2012-10-08 14:48:36 +0000 | [diff] [blame] | 407 | * Sets the current transformation matrix to identity. |
| 408 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 409 | void setIdentityMatrix() { fViewMatrix.reset(); } |
bsalomon@google.com | 0f11e1a | 2012-10-08 14:48:36 +0000 | [diff] [blame] | 410 | |
| 411 | /** |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 412 | * Concats the current matrix. The passed matrix is applied before the |
| 413 | * current matrix. |
| 414 | * @param m the matrix to concat. |
| 415 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 416 | void concatMatrix(const SkMatrix& m) { fViewMatrix.preConcat(m); } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 417 | |
| 418 | |
| 419 | /////////////////////////////////////////////////////////////////////////// |
| 420 | // Clip state |
| 421 | /** |
| 422 | * Gets the current clip. |
| 423 | * @return the current clip. |
| 424 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 425 | const GrClipData* getClip() const { return fClip; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 426 | |
| 427 | /** |
| 428 | * Sets the clip. |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 429 | * @param clipData the clip to set. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 430 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 431 | void setClip(const GrClipData* clipData) { fClip = clipData; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 432 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 433 | /////////////////////////////////////////////////////////////////////////// |
| 434 | // Draws |
| 435 | |
| 436 | /** |
bsalomon@google.com | 6aa25c3 | 2011-04-27 19:55:29 +0000 | [diff] [blame] | 437 | * Clear the entire or rect of the render target, ignoring any clips. |
| 438 | * @param rect the rect to clear or the whole thing if rect is NULL. |
| 439 | * @param color the color to clear to. |
robertphillips@google.com | 56ce48a | 2013-10-31 21:44:25 +0000 | [diff] [blame] | 440 | * @param canIgnoreRect allows partial clears to be converted to whole |
| 441 | * clears on platforms for which that is cheap |
robertphillips@google.com | c82a8b7 | 2012-06-21 20:15:48 +0000 | [diff] [blame] | 442 | * @param target if non-NULL, the render target to clear otherwise clear |
| 443 | * the current render target |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 444 | */ |
robertphillips@google.com | 56ce48a | 2013-10-31 21:44:25 +0000 | [diff] [blame] | 445 | void clear(const SkIRect* rect, GrColor color, bool canIgnoreRect, |
robertphillips@google.com | c82a8b7 | 2012-06-21 20:15:48 +0000 | [diff] [blame] | 446 | GrRenderTarget* target = NULL); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 447 | |
| 448 | /** |
| 449 | * Draw everywhere (respecting the clip) with the paint. |
| 450 | */ |
| 451 | void drawPaint(const GrPaint& paint); |
| 452 | |
| 453 | /** |
| 454 | * Draw the rect using a paint. |
| 455 | * @param paint describes how to color pixels. |
skia.committer@gmail.com | 2614418 | 2013-11-07 07:02:19 +0000 | [diff] [blame] | 456 | * @param stroke the stroke information (width, join, cap). |
| 457 | * If stroke == NULL, then the rect is filled. |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 458 | * Otherwise, if stroke width == 0, then the stroke |
skia.committer@gmail.com | 2614418 | 2013-11-07 07:02:19 +0000 | [diff] [blame] | 459 | * is always a single pixel thick, else the rect is |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 460 | * mitered/beveled stroked based on stroke width. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 461 | * @param matrix Optional matrix applied to the rect. Applied before |
| 462 | * context's matrix or the paint's matrix. |
| 463 | * The rects coords are used to access the paint (through texture matrix) |
| 464 | */ |
| 465 | void drawRect(const GrPaint& paint, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 466 | const SkRect&, |
commit-bot@chromium.org | 6006d0f | 2013-11-06 10:08:21 +0000 | [diff] [blame] | 467 | const SkStrokeRec* stroke = NULL, |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 468 | const SkMatrix* matrix = NULL); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 469 | |
| 470 | /** |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 471 | * Maps a rect of local coordinates onto the a rect of destination |
| 472 | * coordinates. Each rect can optionally be transformed. The localRect |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 473 | * is stretched over the dstRect. The dstRect is transformed by the |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 474 | * context's matrix. Additional optional matrices for both rects can be |
| 475 | * provided by parameters. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 476 | * |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 477 | * @param paint describes how to color pixels. |
| 478 | * @param dstRect the destination rect to draw. |
| 479 | * @param localRect rect of local coordinates to be mapped onto dstRect |
| 480 | * @param dstMatrix Optional matrix to transform dstRect. Applied before context's matrix. |
| 481 | * @param localMatrix Optional matrix to transform localRect. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 482 | */ |
| 483 | void drawRectToRect(const GrPaint& paint, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 484 | const SkRect& dstRect, |
| 485 | const SkRect& localRect, |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 486 | const SkMatrix* dstMatrix = NULL, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 487 | const SkMatrix* localMatrix = NULL); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 488 | |
| 489 | /** |
commit-bot@chromium.org | f2bfd54 | 2013-04-25 15:27:00 +0000 | [diff] [blame] | 490 | * Draw a roundrect using a paint. |
| 491 | * |
| 492 | * @param paint describes how to color pixels. |
| 493 | * @param rrect the roundrect to draw |
| 494 | * @param stroke the stroke information (width, join, cap) |
| 495 | */ |
commit-bot@chromium.org | 0a09d71 | 2014-04-09 21:26:11 +0000 | [diff] [blame] | 496 | void drawRRect(const GrPaint& paint, const SkRRect& rrect, const SkStrokeRec& stroke); |
| 497 | |
| 498 | /** |
| 499 | * Shortcut for drawing an SkPath consisting of nested rrects using a paint. |
| 500 | * Does not support stroking. The result is undefined if outer does not contain |
| 501 | * inner. |
| 502 | * |
| 503 | * @param paint describes how to color pixels. |
| 504 | * @param outer the outer roundrect |
| 505 | * @param inner the inner roundrect |
| 506 | */ |
| 507 | void drawDRRect(const GrPaint& paint, const SkRRect& outer, const SkRRect& inner); |
| 508 | |
commit-bot@chromium.org | f2bfd54 | 2013-04-25 15:27:00 +0000 | [diff] [blame] | 509 | |
| 510 | /** |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 511 | * Draws a path. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 512 | * |
| 513 | * @param paint describes how to color pixels. |
reed@google.com | 07f3ee1 | 2011-05-16 17:21:57 +0000 | [diff] [blame] | 514 | * @param path the path to draw |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 515 | * @param stroke the stroke information (width, join, cap) |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 516 | */ |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 517 | void drawPath(const GrPaint& paint, const SkPath& path, const SkStrokeRec& stroke); |
reed@google.com | 07f3ee1 | 2011-05-16 17:21:57 +0000 | [diff] [blame] | 518 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 519 | /** |
| 520 | * Draws vertices with a paint. |
| 521 | * |
| 522 | * @param paint describes how to color pixels. |
| 523 | * @param primitiveType primitives type to draw. |
| 524 | * @param vertexCount number of vertices. |
| 525 | * @param positions array of vertex positions, required. |
| 526 | * @param texCoords optional array of texture coordinates used |
| 527 | * to access the paint. |
| 528 | * @param colors optional array of per-vertex colors, supercedes |
| 529 | * the paint's color field. |
| 530 | * @param indices optional array of indices. If NULL vertices |
| 531 | * are drawn non-indexed. |
| 532 | * @param indexCount if indices is non-null then this is the |
| 533 | * number of indices. |
| 534 | */ |
| 535 | void drawVertices(const GrPaint& paint, |
| 536 | GrPrimitiveType primitiveType, |
| 537 | int vertexCount, |
commit-bot@chromium.org | 972f9cd | 2014-03-28 17:58:28 +0000 | [diff] [blame] | 538 | const SkPoint positions[], |
| 539 | const SkPoint texs[], |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 540 | const GrColor colors[], |
| 541 | const uint16_t indices[], |
| 542 | int indexCount); |
| 543 | |
bsalomon@google.com | 93c9660 | 2012-04-27 13:05:21 +0000 | [diff] [blame] | 544 | /** |
| 545 | * Draws an oval. |
| 546 | * |
| 547 | * @param paint describes how to color pixels. |
jvanverth@google.com | 46d3d39 | 2013-01-22 13:34:01 +0000 | [diff] [blame] | 548 | * @param oval the bounding rect of the oval. |
| 549 | * @param stroke the stroke information (width, style) |
bsalomon@google.com | 93c9660 | 2012-04-27 13:05:21 +0000 | [diff] [blame] | 550 | */ |
| 551 | void drawOval(const GrPaint& paint, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 552 | const SkRect& oval, |
jvanverth@google.com | 46d3d39 | 2013-01-22 13:34:01 +0000 | [diff] [blame] | 553 | const SkStrokeRec& stroke); |
bsalomon@google.com | 93c9660 | 2012-04-27 13:05:21 +0000 | [diff] [blame] | 554 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 555 | /////////////////////////////////////////////////////////////////////////// |
| 556 | // Misc. |
| 557 | |
| 558 | /** |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 559 | * Flags that affect flush() behavior. |
| 560 | */ |
| 561 | enum FlushBits { |
| 562 | /** |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 563 | * A client may reach a point where it has partially rendered a frame |
| 564 | * through a GrContext that it knows the user will never see. This flag |
| 565 | * causes the flush to skip submission of deferred content to the 3D API |
| 566 | * during the flush. |
| 567 | */ |
| 568 | kDiscard_FlushBit = 0x2, |
| 569 | }; |
| 570 | |
| 571 | /** |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 572 | * Call to ensure all drawing to the context has been issued to the |
| 573 | * underlying 3D API. |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 574 | * @param flagsBitfield flags that control the flushing behavior. See |
| 575 | * FlushBits. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 576 | */ |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 577 | void flush(int flagsBitfield = 0); |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 578 | |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 579 | /** |
| 580 | * These flags can be used with the read/write pixels functions below. |
| 581 | */ |
| 582 | enum PixelOpsFlags { |
| 583 | /** The GrContext will not be flushed. This means that the read or write may occur before |
| 584 | previous draws have executed. */ |
| 585 | kDontFlush_PixelOpsFlag = 0x1, |
| 586 | /** The src for write or dst read is unpremultiplied. This is only respected if both the |
| 587 | config src and dst configs are an RGBA/BGRA 8888 format. */ |
| 588 | kUnpremul_PixelOpsFlag = 0x2, |
| 589 | }; |
| 590 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 591 | /** |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 592 | * Reads a rectangle of pixels from a render target. |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 593 | * @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] | 594 | * @param left left edge of the rectangle to read (inclusive) |
| 595 | * @param top top edge of the rectangle to read (inclusive) |
| 596 | * @param width width of rectangle to read in pixels. |
| 597 | * @param height height of rectangle to read in pixels. |
| 598 | * @param config the pixel config of the destination buffer |
| 599 | * @param buffer memory to read the rectangle into. |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 600 | * @param rowBytes number of bytes bewtween consecutive rows. Zero means rows are tightly |
| 601 | * packed. |
| 602 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 603 | * |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 604 | * @return true if the read succeeded, false if not. The read can fail because of an unsupported |
| 605 | * pixel config or because no render target is currently set and NULL was passed for |
| 606 | * target. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 607 | */ |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 608 | bool readRenderTargetPixels(GrRenderTarget* target, |
| 609 | int left, int top, int width, int height, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 610 | GrPixelConfig config, void* buffer, |
| 611 | size_t rowBytes = 0, |
| 612 | uint32_t pixelOpsFlags = 0); |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 613 | |
| 614 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 615 | * 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] | 616 | * rectangle. |
| 617 | * @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] | 618 | * @param left left edge of the rectangle to write (inclusive) |
| 619 | * @param top top edge of the rectangle to write (inclusive) |
| 620 | * @param width width of rectangle to write in pixels. |
| 621 | * @param height height of rectangle to write in pixels. |
| 622 | * @param config the pixel config of the source buffer |
| 623 | * @param buffer memory to read the rectangle from. |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 624 | * @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] | 625 | * packed. |
| 626 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 9c68058 | 2013-02-06 18:17:50 +0000 | [diff] [blame] | 627 | * |
| 628 | * @return true if the write succeeded, false if not. The write can fail because of an |
| 629 | * unsupported combination of target and pixel configs. |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 630 | */ |
bsalomon@google.com | 9c68058 | 2013-02-06 18:17:50 +0000 | [diff] [blame] | 631 | bool writeRenderTargetPixels(GrRenderTarget* target, |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 632 | int left, int top, int width, int height, |
| 633 | GrPixelConfig config, const void* buffer, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 634 | size_t rowBytes = 0, |
| 635 | uint32_t pixelOpsFlags = 0); |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 636 | |
| 637 | /** |
| 638 | * Reads a rectangle of pixels from a texture. |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 639 | * @param texture the texture to read from. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 640 | * @param left left edge of the rectangle to read (inclusive) |
| 641 | * @param top top edge of the rectangle to read (inclusive) |
| 642 | * @param width width of rectangle to read in pixels. |
| 643 | * @param height height of rectangle to read in pixels. |
| 644 | * @param config the pixel config of the destination buffer |
| 645 | * @param buffer memory to read the rectangle into. |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 646 | * @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] | 647 | * packed. |
| 648 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 649 | * |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 650 | * @return true if the read succeeded, false if not. The read can fail because of an unsupported |
| 651 | * pixel config. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 652 | */ |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 653 | bool readTexturePixels(GrTexture* texture, |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 654 | int left, int top, int width, int height, |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 655 | GrPixelConfig config, void* buffer, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 656 | size_t rowBytes = 0, |
| 657 | uint32_t pixelOpsFlags = 0); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 658 | |
| 659 | /** |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 660 | * Writes a rectangle of pixels to a texture. |
| 661 | * @param texture the render target to read from. |
| 662 | * @param left left edge of the rectangle to write (inclusive) |
| 663 | * @param top top edge of the rectangle to write (inclusive) |
| 664 | * @param width width of rectangle to write in pixels. |
| 665 | * @param height height of rectangle to write in pixels. |
| 666 | * @param config the pixel config of the source buffer |
| 667 | * @param buffer memory to read pixels from |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 668 | * @param rowBytes number of bytes between consecutive rows. Zero |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 669 | * means rows are tightly packed. |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 670 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 9c68058 | 2013-02-06 18:17:50 +0000 | [diff] [blame] | 671 | * @return true if the write succeeded, false if not. The write can fail because of an |
| 672 | * unsupported combination of texture and pixel configs. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 673 | */ |
bsalomon@google.com | 9c68058 | 2013-02-06 18:17:50 +0000 | [diff] [blame] | 674 | bool writeTexturePixels(GrTexture* texture, |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 675 | int left, int top, int width, int height, |
| 676 | GrPixelConfig config, const void* buffer, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 677 | size_t rowBytes, |
| 678 | uint32_t pixelOpsFlags = 0); |
| 679 | |
senorblanco@chromium.org | 027de5f | 2011-07-08 18:03:33 +0000 | [diff] [blame] | 680 | /** |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 681 | * Copies a rectangle of texels from src to dst. The size of dst is the size of the rectangle |
| 682 | * copied and topLeft is the position of the rect in src. The rectangle is clipped to src's |
| 683 | * bounds. |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 684 | * @param src the texture to copy from. |
| 685 | * @param dst the render target to copy to. |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 686 | * @param topLeft the point in src that will be copied to the top-left of dst. If NULL, |
| 687 | * (0, 0) will be used. |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 688 | */ |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 689 | void copyTexture(GrTexture* src, GrRenderTarget* dst, const SkIPoint* topLeft = NULL); |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 690 | |
| 691 | /** |
| 692 | * 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] | 693 | * down-sampled to the associated GrTexture (accessible via |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 694 | * GrRenderTarget::asTexture()). Any pending draws to the render target will |
| 695 | * be executed before the resolve. |
| 696 | * |
| 697 | * 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] | 698 | * using the backend API directly. GrContext will detect when it must |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 699 | * perform a resolve to a GrTexture used as the source of a draw or before |
| 700 | * reading pixels back from a GrTexture or GrRenderTarget. |
| 701 | */ |
commit-bot@chromium.org | 28361fa | 2014-03-28 16:08:05 +0000 | [diff] [blame] | 702 | void resolveRenderTarget(GrRenderTarget*); |
| 703 | |
| 704 | /** |
| 705 | * Provides a perfomance hint that the render target's contents are allowed |
| 706 | * to become undefined. |
| 707 | */ |
| 708 | void discardRenderTarget(GrRenderTarget*); |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 709 | |
commit-bot@chromium.org | 03e3e89 | 2013-10-02 18:19:17 +0000 | [diff] [blame] | 710 | #ifdef SK_DEVELOPER |
| 711 | void dumpFontCache() const; |
| 712 | #endif |
| 713 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 714 | /////////////////////////////////////////////////////////////////////////// |
| 715 | // Helpers |
| 716 | |
commit-bot@chromium.org | a0b4028 | 2013-09-18 13:00:55 +0000 | [diff] [blame] | 717 | class AutoRenderTarget : public ::SkNoncopyable { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 718 | public: |
| 719 | AutoRenderTarget(GrContext* context, GrRenderTarget* target) { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 720 | fPrevTarget = context->getRenderTarget(); |
commit-bot@chromium.org | a4de8c2 | 2013-09-09 13:38:37 +0000 | [diff] [blame] | 721 | SkSafeRef(fPrevTarget); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 722 | context->setRenderTarget(target); |
| 723 | fContext = context; |
| 724 | } |
| 725 | AutoRenderTarget(GrContext* context) { |
| 726 | fPrevTarget = context->getRenderTarget(); |
commit-bot@chromium.org | a4de8c2 | 2013-09-09 13:38:37 +0000 | [diff] [blame] | 727 | SkSafeRef(fPrevTarget); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 728 | fContext = context; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 729 | } |
| 730 | ~AutoRenderTarget() { |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 731 | if (NULL != fContext) { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 732 | fContext->setRenderTarget(fPrevTarget); |
| 733 | } |
commit-bot@chromium.org | a4de8c2 | 2013-09-09 13:38:37 +0000 | [diff] [blame] | 734 | SkSafeUnref(fPrevTarget); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 735 | } |
| 736 | private: |
| 737 | GrContext* fContext; |
| 738 | GrRenderTarget* fPrevTarget; |
| 739 | }; |
| 740 | |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 741 | /** |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 742 | * Save/restore the view-matrix in the context. It can optionally adjust a paint to account |
| 743 | * for a coordinate system change. Here is an example of how the paint param can be used: |
| 744 | * |
bsalomon@google.com | 6f261be | 2012-10-24 19:07:10 +0000 | [diff] [blame] | 745 | * 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] | 746 | * 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] | 747 | * geometry to device space on the CPU. The effects now need to know that the space in which |
| 748 | * the geometry will be specified has changed. |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 749 | * |
| 750 | * Note that when restore is called (or in the destructor) the context's matrix will be |
| 751 | * restored. However, the paint will not be restored. The caller must make a copy of the |
| 752 | * paint if necessary. Hint: use SkTCopyOnFirstWrite if the AutoMatrix is conditionally |
| 753 | * initialized. |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 754 | */ |
commit-bot@chromium.org | a0b4028 | 2013-09-18 13:00:55 +0000 | [diff] [blame] | 755 | class AutoMatrix : public ::SkNoncopyable { |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 756 | public: |
| 757 | AutoMatrix() : fContext(NULL) {} |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 758 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 759 | ~AutoMatrix() { this->restore(); } |
| 760 | |
| 761 | /** |
| 762 | * Initializes by pre-concat'ing the context's current matrix with the preConcat param. |
| 763 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 764 | void setPreConcat(GrContext* context, const SkMatrix& preConcat, GrPaint* paint = NULL) { |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 765 | SkASSERT(NULL != context); |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 766 | |
| 767 | this->restore(); |
skia.committer@gmail.com | f57c01b | 2012-10-13 02:01:56 +0000 | [diff] [blame] | 768 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 769 | fContext = context; |
| 770 | fMatrix = context->getMatrix(); |
| 771 | this->preConcat(preConcat, paint); |
| 772 | } |
| 773 | |
| 774 | /** |
| 775 | * Sets the context's matrix to identity. Returns false if the inverse matrix is required to |
| 776 | * update a paint but the matrix cannot be inverted. |
| 777 | */ |
| 778 | bool setIdentity(GrContext* context, GrPaint* paint = NULL) { |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 779 | SkASSERT(NULL != context); |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 780 | |
| 781 | this->restore(); |
skia.committer@gmail.com | f57c01b | 2012-10-13 02:01:56 +0000 | [diff] [blame] | 782 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 783 | if (NULL != paint) { |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 784 | if (!paint->localCoordChangeInverse(context->getMatrix())) { |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 785 | return false; |
| 786 | } |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 787 | } |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 788 | fMatrix = context->getMatrix(); |
| 789 | fContext = context; |
| 790 | context->setIdentityMatrix(); |
| 791 | return true; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 792 | } |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 793 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 794 | /** |
| 795 | * Replaces the context's matrix with a new matrix. Returns false if the inverse matrix is |
| 796 | * required to update a paint but the matrix cannot be inverted. |
| 797 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 798 | bool set(GrContext* context, const SkMatrix& newMatrix, GrPaint* paint = NULL) { |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 799 | if (NULL != paint) { |
| 800 | if (!this->setIdentity(context, paint)) { |
| 801 | return false; |
| 802 | } |
| 803 | this->preConcat(newMatrix, paint); |
| 804 | } else { |
| 805 | this->restore(); |
| 806 | fContext = context; |
| 807 | fMatrix = context->getMatrix(); |
| 808 | context->setMatrix(newMatrix); |
| 809 | } |
| 810 | return true; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 811 | } |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 812 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 813 | /** |
| 814 | * If this has been initialized then the context's matrix will be further updated by |
| 815 | * pre-concat'ing the preConcat param. The matrix that will be restored remains unchanged. |
| 816 | * The paint is assumed to be relative to the context's matrix at the time this call is |
| 817 | * made, not the matrix at the time AutoMatrix was first initialized. In other words, this |
| 818 | * performs an incremental update of the paint. |
| 819 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 820 | void preConcat(const SkMatrix& preConcat, GrPaint* paint = NULL) { |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 821 | if (NULL != paint) { |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 822 | paint->localCoordChange(preConcat); |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 823 | } |
| 824 | fContext->concatMatrix(preConcat); |
| 825 | } |
| 826 | |
| 827 | /** |
| 828 | * Returns false if never initialized or the inverse matrix was required to update a paint |
| 829 | * but the matrix could not be inverted. |
| 830 | */ |
| 831 | bool succeeded() const { return NULL != fContext; } |
| 832 | |
| 833 | /** |
| 834 | * If this has been initialized then the context's original matrix is restored. |
| 835 | */ |
| 836 | void restore() { |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 837 | if (NULL != fContext) { |
| 838 | fContext->setMatrix(fMatrix); |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 839 | fContext = NULL; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 840 | } |
| 841 | } |
| 842 | |
| 843 | private: |
| 844 | GrContext* fContext; |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 845 | SkMatrix fMatrix; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 846 | }; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 847 | |
commit-bot@chromium.org | a0b4028 | 2013-09-18 13:00:55 +0000 | [diff] [blame] | 848 | class AutoClip : public ::SkNoncopyable { |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 849 | public: |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 850 | // This enum exists to require a caller of the constructor to acknowledge that the clip will |
| 851 | // initially be wide open. It also could be extended if there are other desirable initial |
| 852 | // clip states. |
| 853 | enum InitialClip { |
| 854 | kWideOpen_InitialClip, |
| 855 | }; |
| 856 | |
skia.committer@gmail.com | dc3a4e5 | 2012-10-02 02:01:24 +0000 | [diff] [blame] | 857 | AutoClip(GrContext* context, InitialClip initialState) |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 858 | : fContext(context) { |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 859 | SkASSERT(kWideOpen_InitialClip == initialState); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 860 | fNewClipData.fClipStack = &fNewClipStack; |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 861 | |
| 862 | fOldClip = context->getClip(); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 863 | context->setClip(&fNewClipData); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 864 | } |
| 865 | |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 866 | AutoClip(GrContext* context, const SkRect& newClipRect) |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 867 | : fContext(context) |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 868 | , fNewClipStack(newClipRect) { |
| 869 | fNewClipData.fClipStack = &fNewClipStack; |
| 870 | |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 871 | fOldClip = fContext->getClip(); |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 872 | fContext->setClip(&fNewClipData); |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 873 | } |
| 874 | |
| 875 | ~AutoClip() { |
| 876 | if (NULL != fContext) { |
| 877 | fContext->setClip(fOldClip); |
| 878 | } |
| 879 | } |
| 880 | private: |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 881 | GrContext* fContext; |
| 882 | const GrClipData* fOldClip; |
| 883 | |
robertphillips@google.com | 641f8b1 | 2012-07-31 19:15:58 +0000 | [diff] [blame] | 884 | SkClipStack fNewClipStack; |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 885 | GrClipData fNewClipData; |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 886 | }; |
| 887 | |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 888 | class AutoWideOpenIdentityDraw { |
| 889 | public: |
| 890 | AutoWideOpenIdentityDraw(GrContext* ctx, GrRenderTarget* rt) |
| 891 | : fAutoClip(ctx, AutoClip::kWideOpen_InitialClip) |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 892 | , fAutoRT(ctx, rt) { |
| 893 | fAutoMatrix.setIdentity(ctx); |
| 894 | // should never fail with no paint param. |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 895 | SkASSERT(fAutoMatrix.succeeded()); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 896 | } |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 897 | |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 898 | private: |
| 899 | AutoClip fAutoClip; |
| 900 | AutoRenderTarget fAutoRT; |
| 901 | AutoMatrix fAutoMatrix; |
| 902 | }; |
| 903 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 904 | /////////////////////////////////////////////////////////////////////////// |
| 905 | // Functions intended for internal use only. |
| 906 | GrGpu* getGpu() { return fGpu; } |
bsalomon@google.com | 1f221a7 | 2011-08-23 20:54:07 +0000 | [diff] [blame] | 907 | const GrGpu* getGpu() const { return fGpu; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 908 | GrFontCache* getFontCache() { return fFontCache; } |
robertphillips@google.com | e930a07 | 2014-04-03 00:34:27 +0000 | [diff] [blame] | 909 | GrLayerCache* getLayerCache() { return fLayerCache.get(); } |
bsalomon@google.com | 21c10c5 | 2013-06-13 17:44:07 +0000 | [diff] [blame] | 910 | GrDrawTarget* getTextTarget(); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 911 | const GrIndexBuffer* getQuadIndexBuffer() const; |
commit-bot@chromium.org | 95c2003 | 2014-05-09 14:29:32 +0000 | [diff] [blame^] | 912 | GrAARectRenderer* getAARectRenderer() { return fAARectRenderer; } |
bsalomon@google.com | 9923c2b | 2012-06-06 18:21:18 +0000 | [diff] [blame] | 913 | |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 914 | // Called by tests that draw directly to the context via GrDrawTarget |
| 915 | void getTestTarget(GrTestTarget*); |
| 916 | |
commit-bot@chromium.org | 2a05de0 | 2014-03-25 15:17:32 +0000 | [diff] [blame] | 917 | // Functions for managing gpu trace markers |
| 918 | bool isGpuTracingEnabled() const { return fGpuTracingEnabled; } |
| 919 | void enableGpuTracing() { fGpuTracingEnabled = true; } |
| 920 | void disableGpuTracing() { fGpuTracingEnabled = false; } |
| 921 | |
bsalomon@google.com | 558a75b | 2011-08-08 17:01:14 +0000 | [diff] [blame] | 922 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 923 | * Stencil buffers add themselves to the cache using addStencilBuffer. findStencilBuffer is |
| 924 | * 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] | 925 | */ |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 926 | void addStencilBuffer(GrStencilBuffer* sb); |
| 927 | GrStencilBuffer* findStencilBuffer(int width, int height, int sampleCnt); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 928 | |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 929 | GrPathRenderer* getPathRenderer( |
| 930 | const SkPath& path, |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 931 | const SkStrokeRec& stroke, |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 932 | const GrDrawTarget* target, |
| 933 | bool allowSW, |
robertphillips@google.com | e79f320 | 2014-02-11 16:30:21 +0000 | [diff] [blame] | 934 | GrPathRendererChain::DrawType drawType = GrPathRendererChain::kColor_DrawType, |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 935 | GrPathRendererChain::StencilSupport* stencilSupport = NULL); |
robertphillips@google.com | 2c75681 | 2012-05-22 20:28:23 +0000 | [diff] [blame] | 936 | |
robertphillips@google.com | 5955202 | 2012-08-31 13:07:37 +0000 | [diff] [blame] | 937 | #if GR_CACHE_STATS |
robertphillips@google.com | 5f9f2f5 | 2012-08-22 10:57:05 +0000 | [diff] [blame] | 938 | void printCacheStats() const; |
| 939 | #endif |
| 940 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 941 | private: |
bsalomon@google.com | 1d4edd3 | 2012-08-16 18:36:06 +0000 | [diff] [blame] | 942 | // Used to indicate whether a draw should be performed immediately or queued in fDrawBuffer. |
| 943 | enum BufferedDraw { |
| 944 | kYes_BufferedDraw, |
| 945 | kNo_BufferedDraw, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 946 | }; |
bsalomon@google.com | 1d4edd3 | 2012-08-16 18:36:06 +0000 | [diff] [blame] | 947 | BufferedDraw fLastDrawWasBuffered; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 948 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 949 | GrGpu* fGpu; |
| 950 | SkMatrix fViewMatrix; |
| 951 | SkAutoTUnref<GrRenderTarget> fRenderTarget; |
| 952 | const GrClipData* fClip; // TODO: make this ref counted |
| 953 | GrDrawState* fDrawState; |
bsalomon@google.com | 10e04bf | 2012-03-30 14:35:04 +0000 | [diff] [blame] | 954 | |
commit-bot@chromium.org | 95c2003 | 2014-05-09 14:29:32 +0000 | [diff] [blame^] | 955 | GrResourceCache* fResourceCache; |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 956 | GrFontCache* fFontCache; |
robertphillips@google.com | e930a07 | 2014-04-03 00:34:27 +0000 | [diff] [blame] | 957 | SkAutoTDelete<GrLayerCache> fLayerCache; |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 958 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 959 | GrPathRendererChain* fPathRendererChain; |
| 960 | GrSoftwarePathRenderer* fSoftwarePathRenderer; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 961 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 962 | GrVertexBufferAllocPool* fDrawBufferVBAllocPool; |
| 963 | GrIndexBufferAllocPool* fDrawBufferIBAllocPool; |
| 964 | GrInOrderDrawBuffer* fDrawBuffer; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 965 | |
commit-bot@chromium.org | 5dbb149 | 2013-10-04 16:23:58 +0000 | [diff] [blame] | 966 | // Set by OverbudgetCB() to request that GrContext flush before exiting a draw. |
| 967 | bool fFlushToReduceCacheSize; |
| 968 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 969 | GrAARectRenderer* fAARectRenderer; |
| 970 | GrOvalRenderer* fOvalRenderer; |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 971 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 972 | bool fDidTestPMConversions; |
| 973 | int fPMToUPMConversion; |
| 974 | int fUPMToPMConversion; |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 975 | |
robertphillips@google.com | cdb426d | 2012-09-24 19:33:59 +0000 | [diff] [blame] | 976 | struct CleanUpData { |
| 977 | PFCleanUpFunc fFunc; |
| 978 | void* fInfo; |
| 979 | }; |
| 980 | |
robertphillips@google.com | 44a91dc | 2013-07-25 15:32:06 +0000 | [diff] [blame] | 981 | SkTDArray<CleanUpData> fCleanUpData; |
| 982 | |
skia.committer@gmail.com | 956b310 | 2013-07-26 07:00:58 +0000 | [diff] [blame] | 983 | int fMaxTextureSizeOverride; |
robertphillips@google.com | cdb426d | 2012-09-24 19:33:59 +0000 | [diff] [blame] | 984 | |
commit-bot@chromium.org | 2a05de0 | 2014-03-25 15:17:32 +0000 | [diff] [blame] | 985 | bool fGpuTracingEnabled; |
| 986 | |
bsalomon@google.com | 6e4e650 | 2013-02-25 20:12:45 +0000 | [diff] [blame] | 987 | GrContext(); // init must be called after the constructor. |
| 988 | bool init(GrBackend, GrBackendContext); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 989 | |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 990 | void setupDrawBuffer(); |
| 991 | |
bsalomon@google.com | eb6879f | 2013-06-13 19:34:18 +0000 | [diff] [blame] | 992 | class AutoRestoreEffects; |
commit-bot@chromium.org | 5dbb149 | 2013-10-04 16:23:58 +0000 | [diff] [blame] | 993 | class AutoCheckFlush; |
bsalomon@google.com | 07ea2db | 2012-08-17 14:06:49 +0000 | [diff] [blame] | 994 | /// Sets the paint and returns the target to draw into. The paint can be NULL in which case the |
| 995 | /// draw state is left unmodified. |
commit-bot@chromium.org | 5dbb149 | 2013-10-04 16:23:58 +0000 | [diff] [blame] | 996 | GrDrawTarget* prepareToDraw(const GrPaint*, BufferedDraw, AutoRestoreEffects*, AutoCheckFlush*); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 997 | |
commit-bot@chromium.org | 37d883d | 2013-05-02 13:11:22 +0000 | [diff] [blame] | 998 | void internalDrawPath(GrDrawTarget* target, bool useAA, const SkPath& path, |
commit-bot@chromium.org | 8131283 | 2013-03-22 18:34:09 +0000 | [diff] [blame] | 999 | const SkStrokeRec& stroke); |
jvanverth@google.com | 46d3d39 | 2013-01-22 13:34:01 +0000 | [diff] [blame] | 1000 | |
robertphillips@google.com | 3319f33 | 2012-08-13 18:00:36 +0000 | [diff] [blame] | 1001 | GrTexture* createResizedTexture(const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 1002 | const GrCacheID& cacheID, |
robertphillips@google.com | 3319f33 | 2012-08-13 18:00:36 +0000 | [diff] [blame] | 1003 | void* srcData, |
| 1004 | size_t rowBytes, |
humper@google.com | b86add1 | 2013-07-25 18:49:07 +0000 | [diff] [blame] | 1005 | bool filter); |
robertphillips@google.com | 3319f33 | 2012-08-13 18:00:36 +0000 | [diff] [blame] | 1006 | |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 1007 | // Needed so GrTexture's returnToCache helper function can call |
| 1008 | // addExistingTextureToCache |
| 1009 | friend class GrTexture; |
commit-bot@chromium.org | 5c8ee25 | 2013-11-01 15:23:44 +0000 | [diff] [blame] | 1010 | friend class GrStencilAndCoverPathRenderer; |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 1011 | |
| 1012 | // Add an existing texture to the texture cache. This is intended solely |
| 1013 | // for use with textures released from an GrAutoScratchTexture. |
| 1014 | void addExistingTextureToCache(GrTexture* texture); |
reed@google.com | fa35e3d | 2012-06-26 20:16:17 +0000 | [diff] [blame] | 1015 | |
skia.committer@gmail.com | cdcb2ce | 2013-01-29 07:05:52 +0000 | [diff] [blame] | 1016 | /** |
bsalomon@google.com | adc6536 | 2013-01-28 14:26:09 +0000 | [diff] [blame] | 1017 | * These functions create premul <-> unpremul effects if it is possible to generate a pair |
| 1018 | * of effects that make a readToUPM->writeToPM->readToUPM cycle invariant. Otherwise, they |
| 1019 | * return NULL. |
| 1020 | */ |
| 1021 | const GrEffectRef* createPMToUPMEffect(GrTexture* texture, |
| 1022 | bool swapRAndB, |
| 1023 | const SkMatrix& matrix); |
| 1024 | const GrEffectRef* createUPMToPMEffect(GrTexture* texture, |
| 1025 | bool swapRAndB, |
| 1026 | const SkMatrix& matrix); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 1027 | |
commit-bot@chromium.org | cae27fe | 2013-07-10 10:14:35 +0000 | [diff] [blame] | 1028 | /** |
| 1029 | * This callback allows the resource cache to callback into the GrContext |
| 1030 | * when the cache is still overbudget after a purge. |
| 1031 | */ |
| 1032 | static bool OverbudgetCB(void* data); |
| 1033 | |
commit-bot@chromium.org | 5c8ee25 | 2013-11-01 15:23:44 +0000 | [diff] [blame] | 1034 | /** Creates a new gpu path, based on the specified path and stroke and returns it. |
| 1035 | * The caller owns a ref on the returned path which must be balanced by a call to unref. |
| 1036 | * |
| 1037 | * @param skPath the path geometry. |
| 1038 | * @param stroke the path stroke. |
| 1039 | * @return a new path or NULL if the operation is not supported by the backend. |
| 1040 | */ |
| 1041 | GrPath* createPath(const SkPath& skPath, const SkStrokeRec& stroke); |
| 1042 | |
commit-bot@chromium.org | a4de8c2 | 2013-09-09 13:38:37 +0000 | [diff] [blame] | 1043 | typedef SkRefCnt INHERITED; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 1044 | }; |
| 1045 | |
| 1046 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 1047 | * Gets and locks a scratch texture from a descriptor using either exact or approximate criteria. |
| 1048 | * Unlocks texture in the destructor. |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 1049 | */ |
commit-bot@chromium.org | a0b4028 | 2013-09-18 13:00:55 +0000 | [diff] [blame] | 1050 | class GrAutoScratchTexture : public ::SkNoncopyable { |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 1051 | public: |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1052 | GrAutoScratchTexture() |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1053 | : fContext(NULL) |
| 1054 | , fTexture(NULL) { |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 1055 | } |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1056 | |
| 1057 | GrAutoScratchTexture(GrContext* context, |
| 1058 | const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 1059 | GrContext::ScratchTexMatch match = GrContext::kApprox_ScratchTexMatch) |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1060 | : fContext(NULL) |
| 1061 | , fTexture(NULL) { |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1062 | this->set(context, desc, match); |
| 1063 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 1064 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1065 | ~GrAutoScratchTexture() { |
robertphillips@google.com | 9ec0753 | 2012-06-22 12:01:30 +0000 | [diff] [blame] | 1066 | this->reset(); |
| 1067 | } |
| 1068 | |
| 1069 | void reset() { |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1070 | if (NULL != fContext && NULL != fTexture) { |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 1071 | fContext->unlockScratchTexture(fTexture); |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 1072 | fTexture->unref(); |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1073 | fTexture = NULL; |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 1074 | } |
| 1075 | } |
bsalomon@google.com | 8422311 | 2011-07-14 14:45:44 +0000 | [diff] [blame] | 1076 | |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 1077 | /* |
| 1078 | * 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] | 1079 | * we do set the returnToCache flag. In this way the texture remains |
| 1080 | * "locked" in the texture cache until it is freed and recycled in |
| 1081 | * GrTexture::internal_dispose. In reality, the texture has been removed |
| 1082 | * from the cache (because this is in AutoScratchTexture) and by not |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 1083 | * calling unlockScratchTexture we simply don't re-add it. It will be |
| 1084 | * reattached in GrTexture::internal_dispose. |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 1085 | * |
| 1086 | * Note that the caller is assumed to accept and manage the ref to the |
| 1087 | * returned texture. |
| 1088 | */ |
| 1089 | GrTexture* detach() { |
commit-bot@chromium.org | 3f4ea26 | 2013-05-11 13:21:43 +0000 | [diff] [blame] | 1090 | if (NULL == fTexture) { |
| 1091 | return NULL; |
| 1092 | } |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 1093 | GrTexture* texture = fTexture; |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1094 | fTexture = NULL; |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 1095 | |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 1096 | // This GrAutoScratchTexture has a ref from lockAndRefScratchTexture, which we give up now. |
| 1097 | // The cache also has a ref which we are lending to the caller of detach(). When the caller |
| 1098 | // lets go of the ref and the ref count goes to 0 internal_dispose will see this flag is |
| 1099 | // set and re-ref the texture, thereby restoring the cache's ref. |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 1100 | SkASSERT(texture->getRefCnt() > 1); |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 1101 | texture->setFlag((GrTextureFlags) GrTexture::kReturnToCache_FlagBit); |
| 1102 | texture->unref(); |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 1103 | SkASSERT(NULL != texture->getCacheEntry()); |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 1104 | |
| 1105 | return texture; |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 1106 | } |
| 1107 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1108 | GrTexture* set(GrContext* context, |
| 1109 | const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 1110 | GrContext::ScratchTexMatch match = GrContext::kApprox_ScratchTexMatch) { |
robertphillips@google.com | 9ec0753 | 2012-06-22 12:01:30 +0000 | [diff] [blame] | 1111 | this->reset(); |
| 1112 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1113 | fContext = context; |
| 1114 | if (NULL != fContext) { |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 1115 | fTexture = fContext->lockAndRefScratchTexture(desc, match); |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1116 | if (NULL == fTexture) { |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1117 | fContext = NULL; |
| 1118 | } |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1119 | return fTexture; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1120 | } else { |
| 1121 | return NULL; |
| 1122 | } |
| 1123 | } |
| 1124 | |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1125 | GrTexture* texture() { return fTexture; } |
| 1126 | |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 1127 | private: |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1128 | GrContext* fContext; |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1129 | GrTexture* fTexture; |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 1130 | }; |
| 1131 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 1132 | #endif |