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 | |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 11 | #include "GrColor.h" |
robertphillips@google.com | f6747b0 | 2012-06-12 00:32:28 +0000 | [diff] [blame] | 12 | #include "GrAARectRenderer.h" |
robertphillips@google.com | a2d7148 | 2012-08-01 20:08:47 +0000 | [diff] [blame] | 13 | #include "GrClipData.h" |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 14 | #include "SkMatrix.h" |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 15 | #include "GrPaint.h" |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 16 | #include "GrPathRendererChain.h" |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 17 | #include "GrPoint.h" |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 18 | #include "GrRenderTarget.h" |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 19 | #include "GrRefCnt.h" |
| 20 | #include "GrTexture.h" |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 21 | |
senorblanco@chromium.org | 3b4dd90 | 2012-03-05 20:41:22 +0000 | [diff] [blame] | 22 | class GrAutoScratchTexture; |
bsalomon@google.com | 10e04bf | 2012-03-30 14:35:04 +0000 | [diff] [blame] | 23 | class GrDrawState; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 24 | class GrDrawTarget; |
bsalomon@google.com | a469c28 | 2012-10-24 18:28:34 +0000 | [diff] [blame] | 25 | class GrEffect; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 26 | class GrFontCache; |
bsalomon@google.com | 05ef510 | 2011-05-02 21:14:59 +0000 | [diff] [blame] | 27 | class GrGpu; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 28 | class GrIndexBuffer; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 29 | class GrIndexBufferAllocPool; |
| 30 | class GrInOrderDrawBuffer; |
commit-bot@chromium.org | 8131283 | 2013-03-22 18:34:09 +0000 | [diff] [blame] | 31 | class GrOvalRenderer; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 32 | class GrPathRenderer; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 33 | class GrResourceEntry; |
| 34 | class GrResourceCache; |
bsalomon@google.com | 558a75b | 2011-08-08 17:01:14 +0000 | [diff] [blame] | 35 | class GrStencilBuffer; |
bsalomon@google.com | 288d954 | 2012-10-17 12:53:54 +0000 | [diff] [blame] | 36 | class GrTextureParams; |
bsalomon@google.com | 583a1e3 | 2011-08-17 13:42:46 +0000 | [diff] [blame] | 37 | class GrVertexBuffer; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 38 | class GrVertexBufferAllocPool; |
robertphillips@google.com | 72176b2 | 2012-05-23 13:19:12 +0000 | [diff] [blame] | 39 | class GrSoftwarePathRenderer; |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 40 | class SkStrokeRec; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 41 | |
bsalomon@google.com | 9182610 | 2011-03-21 19:51:57 +0000 | [diff] [blame] | 42 | class GR_API GrContext : public GrRefCnt { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 43 | public: |
reed@google.com | fa35e3d | 2012-06-26 20:16:17 +0000 | [diff] [blame] | 44 | SK_DECLARE_INST_COUNT(GrContext) |
| 45 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 46 | /** |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 47 | * Creates a GrContext for a backend context. |
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 | static GrContext* Create(GrBackend, GrBackendContext); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 50 | |
bsalomon@google.com | c0af317 | 2012-06-15 14:10:09 +0000 | [diff] [blame] | 51 | /** |
| 52 | * Returns the number of GrContext instances for the current thread. |
| 53 | */ |
| 54 | static int GetThreadInstanceCount(); |
| 55 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 56 | virtual ~GrContext(); |
| 57 | |
| 58 | /** |
| 59 | * The GrContext normally assumes that no outsider is setting state |
| 60 | * within the underlying 3D API's context/device/whatever. This call informs |
| 61 | * the context that the state was modified and it should resend. Shouldn't |
| 62 | * be called frequently for good performance. |
bsalomon@google.com | 0a208a1 | 2013-06-28 18:57:35 +0000 | [diff] [blame] | 63 | * The flag bits, state, is dpendent on which backend is used by the |
| 64 | * context, either GL or D3D (possible in future). |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 65 | */ |
bsalomon@google.com | 0a208a1 | 2013-06-28 18:57:35 +0000 | [diff] [blame] | 66 | void resetContext(uint32_t state = kAll_GrBackendState); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 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 | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 121 | * Creates a new entry, based on the specified key and texture and returns it. The caller owns a |
| 122 | * 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] | 123 | * |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 124 | * @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] | 125 | * the cache entry used. (e.g. different versions may exist |
| 126 | * for different wrap modes on GPUs with limited NPOT |
| 127 | * texture support). NULL implies clamp wrap modes. |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 128 | * @param desc Description of the texture properties. |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 129 | * @param cacheID Cache-specific properties (e.g., texture gen ID) |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 130 | * @param srcData Pointer to the pixel values. |
| 131 | * @param rowBytes The number of bytes between rows of the texture. Zero |
| 132 | * implies tightly packed rows. |
| 133 | */ |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 134 | GrTexture* createTexture(const GrTextureParams* params, |
| 135 | const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 136 | const GrCacheID& cacheID, |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 137 | void* srcData, size_t rowBytes); |
bsalomon@google.com | 1fadb20 | 2011-12-12 16:10:08 +0000 | [diff] [blame] | 138 | |
| 139 | /** |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 140 | * Search for an entry based on key and dimensions. If found, ref it and return it. The return |
| 141 | * 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] | 142 | * |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 143 | * @param desc Description of the texture properties. |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 144 | * @param cacheID Cache-specific properties (e.g., texture gen ID) |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 145 | * @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] | 146 | * the cache entry used. (e.g. different versions may exist |
| 147 | * for different wrap modes on GPUs with limited NPOT |
| 148 | * texture support). NULL implies clamp wrap modes. |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 149 | */ |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 150 | GrTexture* findAndRefTexture(const GrTextureDesc& desc, |
| 151 | const GrCacheID& cacheID, |
| 152 | const GrTextureParams* params); |
bsalomon@google.com | fb30951 | 2011-11-30 14:13:48 +0000 | [diff] [blame] | 153 | /** |
| 154 | * Determines whether a texture is in the cache. If the texture is found it |
| 155 | * will not be locked or returned. This call does not affect the priority of |
| 156 | * the texture for deletion. |
| 157 | */ |
robertphillips@google.com | 75b3c96 | 2012-06-07 12:08:45 +0000 | [diff] [blame] | 158 | bool isTextureInCache(const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 159 | const GrCacheID& cacheID, |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 160 | const GrTextureParams* params) const; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 161 | |
| 162 | /** |
| 163 | * Enum that determines how closely a returned scratch texture must match |
| 164 | * a provided GrTextureDesc. |
| 165 | */ |
| 166 | enum ScratchTexMatch { |
| 167 | /** |
| 168 | * Finds a texture that exactly matches the descriptor. |
| 169 | */ |
| 170 | kExact_ScratchTexMatch, |
| 171 | /** |
| 172 | * Finds a texture that approximately matches the descriptor. Will be |
| 173 | * at least as large in width and height as desc specifies. If desc |
| 174 | * specifies that texture is a render target then result will be a |
| 175 | * render target. If desc specifies a render target and doesn't set the |
| 176 | * no stencil flag then result will have a stencil. Format and aa level |
| 177 | * will always match. |
| 178 | */ |
| 179 | kApprox_ScratchTexMatch |
| 180 | }; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 181 | |
| 182 | /** |
bsalomon@google.com | fea37b5 | 2011-04-25 15:51:06 +0000 | [diff] [blame] | 183 | * Returns a texture matching the desc. It's contents are unknown. Subsequent |
| 184 | * requests with the same descriptor are not guaranteed to return the same |
| 185 | * 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] | 186 | * unlocked. Call must be balanced with an unlockTexture() call. The caller |
| 187 | * 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] | 188 | * |
| 189 | * Textures created by createAndLockTexture() hide the complications of |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 190 | * 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] | 191 | * unextended GLES2). Tiling a NPOT texture created by lockScratchTexture on |
bsalomon@google.com | a39f404 | 2011-04-26 13:18:16 +0000 | [diff] [blame] | 192 | * such an API will create gaps in the tiling pattern. This includes clamp |
| 193 | * mode. (This may be addressed in a future update.) |
bsalomon@google.com | fea37b5 | 2011-04-25 15:51:06 +0000 | [diff] [blame] | 194 | */ |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 195 | GrTexture* lockAndRefScratchTexture(const GrTextureDesc&, ScratchTexMatch match); |
bsalomon@google.com | b5b3168 | 2011-06-16 18:05:35 +0000 | [diff] [blame] | 196 | |
| 197 | /** |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 198 | * 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] | 199 | * 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] | 200 | */ |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 201 | void unlockScratchTexture(GrTexture* texture); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 202 | |
| 203 | /** |
robertphillips@google.com | 50a035d | 2012-09-07 19:44:33 +0000 | [diff] [blame] | 204 | * This method should be called whenever a GrTexture is unreffed or |
| 205 | * switched from exclusive to non-exclusive. This |
| 206 | * gives the resource cache a chance to discard unneeded textures. |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 207 | * Note: this entry point will be removed once totally ref-driven |
| 208 | * cache maintenance is implemented |
robertphillips@google.com | 50a035d | 2012-09-07 19:44:33 +0000 | [diff] [blame] | 209 | */ |
| 210 | void purgeCache(); |
| 211 | |
| 212 | /** |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 213 | * Creates a texture that is outside the cache. Does not count against |
| 214 | * cache's budget. |
| 215 | */ |
robertphillips@google.com | 75b3c96 | 2012-06-07 12:08:45 +0000 | [diff] [blame] | 216 | GrTexture* createUncachedTexture(const GrTextureDesc& desc, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 217 | void* srcData, |
| 218 | size_t rowBytes); |
| 219 | |
| 220 | /** |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 221 | * Returns true if the specified use of an indexed texture is supported. |
| 222 | * Support may depend upon whether the texture params indicate that the |
| 223 | * texture will be tiled. Passing NULL for the texture params indicates |
| 224 | * clamp mode. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 225 | */ |
bsalomon@google.com | b867099 | 2012-07-25 21:27:09 +0000 | [diff] [blame] | 226 | bool supportsIndex8PixelConfig(const GrTextureParams*, |
bsalomon@google.com | 1f221a7 | 2011-08-23 20:54:07 +0000 | [diff] [blame] | 227 | int width, |
| 228 | int height) const; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 229 | |
| 230 | /** |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 231 | * Return the current texture cache limits. |
| 232 | * |
| 233 | * @param maxTextures If non-null, returns maximum number of textures that |
| 234 | * can be held in the cache. |
| 235 | * @param maxTextureBytes If non-null, returns maximum number of bytes of |
| 236 | * texture memory that can be held in the cache. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 237 | */ |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 238 | void getTextureCacheLimits(int* maxTextures, size_t* maxTextureBytes) const; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 239 | |
| 240 | /** |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 241 | * Specify the texture cache limits. If the current cache exceeds either |
| 242 | * 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] | 243 | * |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 244 | * @param maxTextures The maximum number of textures that can be held in |
| 245 | * the cache. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 246 | * @param maxTextureBytes The maximum number of bytes of texture memory |
| 247 | * that can be held in the cache. |
| 248 | */ |
bsalomon@google.com | 07fc0d1 | 2012-06-22 15:15:59 +0000 | [diff] [blame] | 249 | void setTextureCacheLimits(int maxTextures, size_t maxTextureBytes); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 250 | |
| 251 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 252 | * 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] | 253 | */ |
bsalomon@google.com | 9195836 | 2011-06-13 17:58:13 +0000 | [diff] [blame] | 254 | int getMaxTextureSize() const; |
| 255 | |
robertphillips@google.com | 44a91dc | 2013-07-25 15:32:06 +0000 | [diff] [blame] | 256 | /** |
skia.committer@gmail.com | 956b310 | 2013-07-26 07:00:58 +0000 | [diff] [blame] | 257 | * Temporarily override the true max texture size. Note: an override |
robertphillips@google.com | 44a91dc | 2013-07-25 15:32:06 +0000 | [diff] [blame] | 258 | * larger then the true max texture size will have no effect. |
| 259 | * This entry point is mainly meant for testing texture size dependent |
| 260 | * features and is only available if defined outside of Skia (see |
| 261 | * bleed GM. |
| 262 | */ |
| 263 | void setMaxTextureSizeOverride(int maxTextureSizeOverride); |
| 264 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 265 | /////////////////////////////////////////////////////////////////////////// |
| 266 | // Render targets |
| 267 | |
| 268 | /** |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 269 | * Sets the render target. |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 270 | * @param target the render target to set. |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 271 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 272 | void setRenderTarget(GrRenderTarget* target) { |
| 273 | fRenderTarget.reset(SkSafeRef(target)); |
| 274 | } |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 275 | |
| 276 | /** |
| 277 | * Gets the current render target. |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 278 | * @return the currently bound render target. |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 279 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 280 | const GrRenderTarget* getRenderTarget() const { return fRenderTarget.get(); } |
| 281 | GrRenderTarget* getRenderTarget() { return fRenderTarget.get(); } |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 282 | |
robertphillips@google.com | f69a11b | 2012-06-15 13:58:07 +0000 | [diff] [blame] | 283 | GrAARectRenderer* getAARectRenderer() { return fAARectRenderer; } |
| 284 | |
robertphillips@google.com | 99a5ac0 | 2012-04-10 19:26:38 +0000 | [diff] [blame] | 285 | /** |
| 286 | * Can the provided configuration act as a color render target? |
| 287 | */ |
| 288 | bool isConfigRenderable(GrPixelConfig config) const; |
| 289 | |
bsalomon@google.com | 8a70eef | 2013-03-19 13:58:55 +0000 | [diff] [blame] | 290 | /** |
| 291 | * Return the max width or height of a render target supported by the |
| 292 | * current GPU. |
| 293 | */ |
| 294 | int getMaxRenderTargetSize() const; |
| 295 | |
| 296 | /** |
| 297 | * Returns the max sample count for a render target. It will be 0 if MSAA |
| 298 | * is not supported. |
| 299 | */ |
| 300 | int getMaxSampleCount() const; |
| 301 | |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 302 | /////////////////////////////////////////////////////////////////////////// |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 303 | // Backend Surfaces |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 304 | |
bsalomon@google.com | 5877ffd | 2011-04-11 17:58:48 +0000 | [diff] [blame] | 305 | /** |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 306 | * Wraps an existing texture with a GrTexture object. |
| 307 | * |
| 308 | * OpenGL: if the object is a texture Gr may change its GL texture params |
| 309 | * when it is drawn. |
| 310 | * |
| 311 | * @param desc description of the object to create. |
| 312 | * |
| 313 | * @return GrTexture object or NULL on failure. |
| 314 | */ |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 315 | GrTexture* wrapBackendTexture(const GrBackendTextureDesc& desc); |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 316 | |
| 317 | /** |
| 318 | * Wraps an existing render target with a GrRenderTarget object. It is |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 319 | * similar to wrapBackendTexture but can be used to draw into surfaces |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 320 | * that are not also textures (e.g. FBO 0 in OpenGL, or an MSAA buffer that |
| 321 | * the client will resolve to a texture). |
| 322 | * |
| 323 | * @param desc description of the object to create. |
| 324 | * |
| 325 | * @return GrTexture object or NULL on failure. |
| 326 | */ |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 327 | GrRenderTarget* wrapBackendRenderTarget(const GrBackendRenderTargetDesc& desc); |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 328 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 329 | /////////////////////////////////////////////////////////////////////////// |
| 330 | // Matrix state |
| 331 | |
| 332 | /** |
| 333 | * Gets the current transformation matrix. |
| 334 | * @return the current matrix. |
| 335 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 336 | const SkMatrix& getMatrix() const { return fViewMatrix; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 337 | |
| 338 | /** |
| 339 | * Sets the transformation matrix. |
| 340 | * @param m the matrix to set. |
| 341 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 342 | void setMatrix(const SkMatrix& m) { fViewMatrix = m; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 343 | |
| 344 | /** |
bsalomon@google.com | 0f11e1a | 2012-10-08 14:48:36 +0000 | [diff] [blame] | 345 | * Sets the current transformation matrix to identity. |
| 346 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 347 | void setIdentityMatrix() { fViewMatrix.reset(); } |
bsalomon@google.com | 0f11e1a | 2012-10-08 14:48:36 +0000 | [diff] [blame] | 348 | |
| 349 | /** |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 350 | * Concats the current matrix. The passed matrix is applied before the |
| 351 | * current matrix. |
| 352 | * @param m the matrix to concat. |
| 353 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 354 | void concatMatrix(const SkMatrix& m) { fViewMatrix.preConcat(m); } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 355 | |
| 356 | |
| 357 | /////////////////////////////////////////////////////////////////////////// |
| 358 | // Clip state |
| 359 | /** |
| 360 | * Gets the current clip. |
| 361 | * @return the current clip. |
| 362 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 363 | const GrClipData* getClip() const { return fClip; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 364 | |
| 365 | /** |
| 366 | * Sets the clip. |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 367 | * @param clipData the clip to set. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 368 | */ |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 369 | void setClip(const GrClipData* clipData) { fClip = clipData; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 370 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 371 | /////////////////////////////////////////////////////////////////////////// |
| 372 | // Draws |
| 373 | |
| 374 | /** |
bsalomon@google.com | 6aa25c3 | 2011-04-27 19:55:29 +0000 | [diff] [blame] | 375 | * Clear the entire or rect of the render target, ignoring any clips. |
| 376 | * @param rect the rect to clear or the whole thing if rect is NULL. |
| 377 | * @param color the color to clear to. |
robertphillips@google.com | c82a8b7 | 2012-06-21 20:15:48 +0000 | [diff] [blame] | 378 | * @param target if non-NULL, the render target to clear otherwise clear |
| 379 | * the current render target |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 380 | */ |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 381 | void clear(const SkIRect* rect, GrColor color, |
robertphillips@google.com | c82a8b7 | 2012-06-21 20:15:48 +0000 | [diff] [blame] | 382 | GrRenderTarget* target = NULL); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 383 | |
| 384 | /** |
| 385 | * Draw everywhere (respecting the clip) with the paint. |
| 386 | */ |
| 387 | void drawPaint(const GrPaint& paint); |
| 388 | |
| 389 | /** |
| 390 | * Draw the rect using a paint. |
| 391 | * @param paint describes how to color pixels. |
| 392 | * @param strokeWidth If strokeWidth < 0, then the rect is filled, else |
| 393 | * the rect is mitered stroked based on strokeWidth. If |
| 394 | * strokeWidth == 0, then the stroke is always a single |
| 395 | * pixel thick. |
| 396 | * @param matrix Optional matrix applied to the rect. Applied before |
| 397 | * context's matrix or the paint's matrix. |
| 398 | * The rects coords are used to access the paint (through texture matrix) |
| 399 | */ |
| 400 | void drawRect(const GrPaint& paint, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 401 | const SkRect&, |
bsalomon@google.com | 8171288 | 2012-11-01 17:12:34 +0000 | [diff] [blame] | 402 | SkScalar strokeWidth = -1, |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 403 | const SkMatrix* matrix = NULL); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 404 | |
| 405 | /** |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 406 | * Maps a rect of local coordinates onto the a rect of destination |
| 407 | * coordinates. Each rect can optionally be transformed. The localRect |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 408 | * is stretched over the dstRect. The dstRect is transformed by the |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 409 | * context's matrix. Additional optional matrices for both rects can be |
| 410 | * provided by parameters. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 411 | * |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 412 | * @param paint describes how to color pixels. |
| 413 | * @param dstRect the destination rect to draw. |
| 414 | * @param localRect rect of local coordinates to be mapped onto dstRect |
| 415 | * @param dstMatrix Optional matrix to transform dstRect. Applied before context's matrix. |
| 416 | * @param localMatrix Optional matrix to transform localRect. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 417 | */ |
| 418 | void drawRectToRect(const GrPaint& paint, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 419 | const SkRect& dstRect, |
| 420 | const SkRect& localRect, |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 421 | const SkMatrix* dstMatrix = NULL, |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 422 | const SkMatrix* localMatrix = NULL); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 423 | |
| 424 | /** |
commit-bot@chromium.org | f2bfd54 | 2013-04-25 15:27:00 +0000 | [diff] [blame] | 425 | * Draw a roundrect using a paint. |
| 426 | * |
| 427 | * @param paint describes how to color pixels. |
| 428 | * @param rrect the roundrect to draw |
| 429 | * @param stroke the stroke information (width, join, cap) |
| 430 | */ |
| 431 | void drawRRect(const GrPaint& paint, |
| 432 | const SkRRect& rrect, |
| 433 | const SkStrokeRec& stroke); |
| 434 | |
| 435 | /** |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 436 | * Draws a path. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 437 | * |
| 438 | * @param paint describes how to color pixels. |
reed@google.com | 07f3ee1 | 2011-05-16 17:21:57 +0000 | [diff] [blame] | 439 | * @param path the path to draw |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 440 | * @param stroke the stroke information (width, join, cap) |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 441 | */ |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 442 | void drawPath(const GrPaint& paint, const SkPath& path, const SkStrokeRec& stroke); |
reed@google.com | 07f3ee1 | 2011-05-16 17:21:57 +0000 | [diff] [blame] | 443 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 444 | /** |
| 445 | * Draws vertices with a paint. |
| 446 | * |
| 447 | * @param paint describes how to color pixels. |
| 448 | * @param primitiveType primitives type to draw. |
| 449 | * @param vertexCount number of vertices. |
| 450 | * @param positions array of vertex positions, required. |
| 451 | * @param texCoords optional array of texture coordinates used |
| 452 | * to access the paint. |
| 453 | * @param colors optional array of per-vertex colors, supercedes |
| 454 | * the paint's color field. |
| 455 | * @param indices optional array of indices. If NULL vertices |
| 456 | * are drawn non-indexed. |
| 457 | * @param indexCount if indices is non-null then this is the |
| 458 | * number of indices. |
| 459 | */ |
| 460 | void drawVertices(const GrPaint& paint, |
| 461 | GrPrimitiveType primitiveType, |
| 462 | int vertexCount, |
| 463 | const GrPoint positions[], |
| 464 | const GrPoint texs[], |
| 465 | const GrColor colors[], |
| 466 | const uint16_t indices[], |
| 467 | int indexCount); |
| 468 | |
bsalomon@google.com | 93c9660 | 2012-04-27 13:05:21 +0000 | [diff] [blame] | 469 | /** |
| 470 | * Draws an oval. |
| 471 | * |
| 472 | * @param paint describes how to color pixels. |
jvanverth@google.com | 46d3d39 | 2013-01-22 13:34:01 +0000 | [diff] [blame] | 473 | * @param oval the bounding rect of the oval. |
| 474 | * @param stroke the stroke information (width, style) |
bsalomon@google.com | 93c9660 | 2012-04-27 13:05:21 +0000 | [diff] [blame] | 475 | */ |
| 476 | void drawOval(const GrPaint& paint, |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 477 | const SkRect& oval, |
jvanverth@google.com | 46d3d39 | 2013-01-22 13:34:01 +0000 | [diff] [blame] | 478 | const SkStrokeRec& stroke); |
bsalomon@google.com | 93c9660 | 2012-04-27 13:05:21 +0000 | [diff] [blame] | 479 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 480 | /////////////////////////////////////////////////////////////////////////// |
| 481 | // Misc. |
| 482 | |
| 483 | /** |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 484 | * Flags that affect flush() behavior. |
| 485 | */ |
| 486 | enum FlushBits { |
| 487 | /** |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 488 | * A client may reach a point where it has partially rendered a frame |
| 489 | * through a GrContext that it knows the user will never see. This flag |
| 490 | * causes the flush to skip submission of deferred content to the 3D API |
| 491 | * during the flush. |
| 492 | */ |
| 493 | kDiscard_FlushBit = 0x2, |
| 494 | }; |
| 495 | |
| 496 | /** |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 497 | * Call to ensure all drawing to the context has been issued to the |
| 498 | * underlying 3D API. |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 499 | * @param flagsBitfield flags that control the flushing behavior. See |
| 500 | * FlushBits. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 501 | */ |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 502 | void flush(int flagsBitfield = 0); |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 503 | |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 504 | /** |
| 505 | * These flags can be used with the read/write pixels functions below. |
| 506 | */ |
| 507 | enum PixelOpsFlags { |
| 508 | /** The GrContext will not be flushed. This means that the read or write may occur before |
| 509 | previous draws have executed. */ |
| 510 | kDontFlush_PixelOpsFlag = 0x1, |
| 511 | /** The src for write or dst read is unpremultiplied. This is only respected if both the |
| 512 | config src and dst configs are an RGBA/BGRA 8888 format. */ |
| 513 | kUnpremul_PixelOpsFlag = 0x2, |
| 514 | }; |
| 515 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 516 | /** |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 517 | * Reads a rectangle of pixels from a render target. |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 518 | * @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] | 519 | * @param left left edge of the rectangle to read (inclusive) |
| 520 | * @param top top edge of the rectangle to read (inclusive) |
| 521 | * @param width width of rectangle to read in pixels. |
| 522 | * @param height height of rectangle to read in pixels. |
| 523 | * @param config the pixel config of the destination buffer |
| 524 | * @param buffer memory to read the rectangle into. |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 525 | * @param rowBytes number of bytes bewtween consecutive rows. Zero means rows are tightly |
| 526 | * packed. |
| 527 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 528 | * |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 529 | * @return true if the read succeeded, false if not. The read can fail because of an unsupported |
| 530 | * pixel config or because no render target is currently set and NULL was passed for |
| 531 | * target. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 532 | */ |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 533 | bool readRenderTargetPixels(GrRenderTarget* target, |
| 534 | int left, int top, int width, int height, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 535 | GrPixelConfig config, void* buffer, |
| 536 | size_t rowBytes = 0, |
| 537 | uint32_t pixelOpsFlags = 0); |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 538 | |
| 539 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 540 | * 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] | 541 | * rectangle. |
| 542 | * @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] | 543 | * @param left left edge of the rectangle to write (inclusive) |
| 544 | * @param top top edge of the rectangle to write (inclusive) |
| 545 | * @param width width of rectangle to write in pixels. |
| 546 | * @param height height of rectangle to write in pixels. |
| 547 | * @param config the pixel config of the source buffer |
| 548 | * @param buffer memory to read the rectangle from. |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 549 | * @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] | 550 | * packed. |
| 551 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 9c68058 | 2013-02-06 18:17:50 +0000 | [diff] [blame] | 552 | * |
| 553 | * @return true if the write succeeded, false if not. The write can fail because of an |
| 554 | * unsupported combination of target and pixel configs. |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 555 | */ |
bsalomon@google.com | 9c68058 | 2013-02-06 18:17:50 +0000 | [diff] [blame] | 556 | bool writeRenderTargetPixels(GrRenderTarget* target, |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 557 | int left, int top, int width, int height, |
| 558 | GrPixelConfig config, const void* buffer, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 559 | size_t rowBytes = 0, |
| 560 | uint32_t pixelOpsFlags = 0); |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 561 | |
| 562 | /** |
| 563 | * Reads a rectangle of pixels from a texture. |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 564 | * @param texture the texture to read from. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 565 | * @param left left edge of the rectangle to read (inclusive) |
| 566 | * @param top top edge of the rectangle to read (inclusive) |
| 567 | * @param width width of rectangle to read in pixels. |
| 568 | * @param height height of rectangle to read in pixels. |
| 569 | * @param config the pixel config of the destination buffer |
| 570 | * @param buffer memory to read the rectangle into. |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 571 | * @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] | 572 | * packed. |
| 573 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 574 | * |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 575 | * @return true if the read succeeded, false if not. The read can fail because of an unsupported |
| 576 | * pixel config. |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 577 | */ |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 578 | bool readTexturePixels(GrTexture* texture, |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 579 | int left, int top, int width, int height, |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 580 | GrPixelConfig config, void* buffer, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 581 | size_t rowBytes = 0, |
| 582 | uint32_t pixelOpsFlags = 0); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 583 | |
| 584 | /** |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 585 | * Writes a rectangle of pixels to a texture. |
| 586 | * @param texture the render target to read from. |
| 587 | * @param left left edge of the rectangle to write (inclusive) |
| 588 | * @param top top edge of the rectangle to write (inclusive) |
| 589 | * @param width width of rectangle to write in pixels. |
| 590 | * @param height height of rectangle to write in pixels. |
| 591 | * @param config the pixel config of the source buffer |
| 592 | * @param buffer memory to read pixels from |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 593 | * @param rowBytes number of bytes between consecutive rows. Zero |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 594 | * means rows are tightly packed. |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 595 | * @param pixelOpsFlags see PixelOpsFlags enum above. |
bsalomon@google.com | 9c68058 | 2013-02-06 18:17:50 +0000 | [diff] [blame] | 596 | * @return true if the write succeeded, false if not. The write can fail because of an |
| 597 | * unsupported combination of texture and pixel configs. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 598 | */ |
bsalomon@google.com | 9c68058 | 2013-02-06 18:17:50 +0000 | [diff] [blame] | 599 | bool writeTexturePixels(GrTexture* texture, |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 600 | int left, int top, int width, int height, |
| 601 | GrPixelConfig config, const void* buffer, |
bsalomon@google.com | 0342a85 | 2012-08-20 19:22:38 +0000 | [diff] [blame] | 602 | size_t rowBytes, |
| 603 | uint32_t pixelOpsFlags = 0); |
| 604 | |
| 605 | |
senorblanco@chromium.org | 027de5f | 2011-07-08 18:03:33 +0000 | [diff] [blame] | 606 | /** |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 607 | * Copies a rectangle of texels from src to dst. The size of dst is the size of the rectangle |
| 608 | * copied and topLeft is the position of the rect in src. The rectangle is clipped to src's |
| 609 | * bounds. |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 610 | * @param src the texture to copy from. |
| 611 | * @param dst the render target to copy to. |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 612 | * @param topLeft the point in src that will be copied to the top-left of dst. If NULL, |
| 613 | * (0, 0) will be used. |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 614 | */ |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 615 | void copyTexture(GrTexture* src, GrRenderTarget* dst, const SkIPoint* topLeft = NULL); |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 616 | |
| 617 | /** |
| 618 | * 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] | 619 | * down-sampled to the associated GrTexture (accessible via |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 620 | * GrRenderTarget::asTexture()). Any pending draws to the render target will |
| 621 | * be executed before the resolve. |
| 622 | * |
| 623 | * 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] | 624 | * using the backend API directly. GrContext will detect when it must |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 625 | * perform a resolve to a GrTexture used as the source of a draw or before |
| 626 | * reading pixels back from a GrTexture or GrRenderTarget. |
| 627 | */ |
| 628 | void resolveRenderTarget(GrRenderTarget* target); |
| 629 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 630 | /////////////////////////////////////////////////////////////////////////// |
| 631 | // Helpers |
| 632 | |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 633 | class AutoRenderTarget : public ::GrNoncopyable { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 634 | public: |
| 635 | AutoRenderTarget(GrContext* context, GrRenderTarget* target) { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 636 | fPrevTarget = context->getRenderTarget(); |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 637 | GrSafeRef(fPrevTarget); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 638 | context->setRenderTarget(target); |
| 639 | fContext = context; |
| 640 | } |
| 641 | AutoRenderTarget(GrContext* context) { |
| 642 | fPrevTarget = context->getRenderTarget(); |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 643 | GrSafeRef(fPrevTarget); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 644 | fContext = context; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 645 | } |
| 646 | ~AutoRenderTarget() { |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 647 | if (NULL != fContext) { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 648 | fContext->setRenderTarget(fPrevTarget); |
| 649 | } |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 650 | GrSafeUnref(fPrevTarget); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 651 | } |
| 652 | private: |
| 653 | GrContext* fContext; |
| 654 | GrRenderTarget* fPrevTarget; |
| 655 | }; |
| 656 | |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 657 | /** |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 658 | * Save/restore the view-matrix in the context. It can optionally adjust a paint to account |
| 659 | * for a coordinate system change. Here is an example of how the paint param can be used: |
| 660 | * |
bsalomon@google.com | 6f261be | 2012-10-24 19:07:10 +0000 | [diff] [blame] | 661 | * 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] | 662 | * 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] | 663 | * geometry to device space on the CPU. The effects now need to know that the space in which |
| 664 | * the geometry will be specified has changed. |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 665 | * |
| 666 | * Note that when restore is called (or in the destructor) the context's matrix will be |
| 667 | * restored. However, the paint will not be restored. The caller must make a copy of the |
| 668 | * paint if necessary. Hint: use SkTCopyOnFirstWrite if the AutoMatrix is conditionally |
| 669 | * initialized. |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 670 | */ |
| 671 | class AutoMatrix : GrNoncopyable { |
| 672 | public: |
| 673 | AutoMatrix() : fContext(NULL) {} |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 674 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 675 | ~AutoMatrix() { this->restore(); } |
| 676 | |
| 677 | /** |
| 678 | * Initializes by pre-concat'ing the context's current matrix with the preConcat param. |
| 679 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 680 | void setPreConcat(GrContext* context, const SkMatrix& preConcat, GrPaint* paint = NULL) { |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 681 | SkASSERT(NULL != context); |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 682 | |
| 683 | this->restore(); |
skia.committer@gmail.com | f57c01b | 2012-10-13 02:01:56 +0000 | [diff] [blame] | 684 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 685 | fContext = context; |
| 686 | fMatrix = context->getMatrix(); |
| 687 | this->preConcat(preConcat, paint); |
| 688 | } |
| 689 | |
| 690 | /** |
| 691 | * Sets the context's matrix to identity. Returns false if the inverse matrix is required to |
| 692 | * update a paint but the matrix cannot be inverted. |
| 693 | */ |
| 694 | bool setIdentity(GrContext* context, GrPaint* paint = NULL) { |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 695 | SkASSERT(NULL != context); |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 696 | |
| 697 | this->restore(); |
skia.committer@gmail.com | f57c01b | 2012-10-13 02:01:56 +0000 | [diff] [blame] | 698 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 699 | if (NULL != paint) { |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 700 | if (!paint->localCoordChangeInverse(context->getMatrix())) { |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 701 | return false; |
| 702 | } |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 703 | } |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 704 | fMatrix = context->getMatrix(); |
| 705 | fContext = context; |
| 706 | context->setIdentityMatrix(); |
| 707 | return true; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 708 | } |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 709 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 710 | /** |
| 711 | * Replaces the context's matrix with a new matrix. Returns false if the inverse matrix is |
| 712 | * required to update a paint but the matrix cannot be inverted. |
| 713 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 714 | bool set(GrContext* context, const SkMatrix& newMatrix, GrPaint* paint = NULL) { |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 715 | if (NULL != paint) { |
| 716 | if (!this->setIdentity(context, paint)) { |
| 717 | return false; |
| 718 | } |
| 719 | this->preConcat(newMatrix, paint); |
| 720 | } else { |
| 721 | this->restore(); |
| 722 | fContext = context; |
| 723 | fMatrix = context->getMatrix(); |
| 724 | context->setMatrix(newMatrix); |
| 725 | } |
| 726 | return true; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 727 | } |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 728 | |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 729 | /** |
| 730 | * If this has been initialized then the context's matrix will be further updated by |
| 731 | * pre-concat'ing the preConcat param. The matrix that will be restored remains unchanged. |
| 732 | * The paint is assumed to be relative to the context's matrix at the time this call is |
| 733 | * made, not the matrix at the time AutoMatrix was first initialized. In other words, this |
| 734 | * performs an incremental update of the paint. |
| 735 | */ |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 736 | void preConcat(const SkMatrix& preConcat, GrPaint* paint = NULL) { |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 737 | if (NULL != paint) { |
bsalomon@google.com | c781888 | 2013-03-20 19:19:53 +0000 | [diff] [blame] | 738 | paint->localCoordChange(preConcat); |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 739 | } |
| 740 | fContext->concatMatrix(preConcat); |
| 741 | } |
| 742 | |
| 743 | /** |
| 744 | * Returns false if never initialized or the inverse matrix was required to update a paint |
| 745 | * but the matrix could not be inverted. |
| 746 | */ |
| 747 | bool succeeded() const { return NULL != fContext; } |
| 748 | |
| 749 | /** |
| 750 | * If this has been initialized then the context's original matrix is restored. |
| 751 | */ |
| 752 | void restore() { |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 753 | if (NULL != fContext) { |
| 754 | fContext->setMatrix(fMatrix); |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 755 | fContext = NULL; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 756 | } |
| 757 | } |
| 758 | |
| 759 | private: |
| 760 | GrContext* fContext; |
bsalomon@google.com | b9086a0 | 2012-11-01 18:02:54 +0000 | [diff] [blame] | 761 | SkMatrix fMatrix; |
robertphillips@google.com | fea85ac | 2012-07-11 18:53:23 +0000 | [diff] [blame] | 762 | }; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 763 | |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 764 | class AutoClip : GrNoncopyable { |
| 765 | public: |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 766 | // This enum exists to require a caller of the constructor to acknowledge that the clip will |
| 767 | // initially be wide open. It also could be extended if there are other desirable initial |
| 768 | // clip states. |
| 769 | enum InitialClip { |
| 770 | kWideOpen_InitialClip, |
| 771 | }; |
| 772 | |
skia.committer@gmail.com | dc3a4e5 | 2012-10-02 02:01:24 +0000 | [diff] [blame] | 773 | AutoClip(GrContext* context, InitialClip initialState) |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 774 | : fContext(context) { |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 775 | SkASSERT(kWideOpen_InitialClip == initialState); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 776 | fNewClipData.fClipStack = &fNewClipStack; |
robertphillips@google.com | ccb3950 | 2012-10-01 18:25:13 +0000 | [diff] [blame] | 777 | |
| 778 | fOldClip = context->getClip(); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 779 | context->setClip(&fNewClipData); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 780 | } |
| 781 | |
commit-bot@chromium.org | fd03d4a | 2013-07-17 21:39:42 +0000 | [diff] [blame] | 782 | AutoClip(GrContext* context, const SkRect& newClipRect) |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 783 | : fContext(context) |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 784 | , fNewClipStack(newClipRect) { |
| 785 | fNewClipData.fClipStack = &fNewClipStack; |
| 786 | |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 787 | fOldClip = fContext->getClip(); |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 788 | fContext->setClip(&fNewClipData); |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 789 | } |
| 790 | |
| 791 | ~AutoClip() { |
| 792 | if (NULL != fContext) { |
| 793 | fContext->setClip(fOldClip); |
| 794 | } |
| 795 | } |
| 796 | private: |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 797 | GrContext* fContext; |
| 798 | const GrClipData* fOldClip; |
| 799 | |
robertphillips@google.com | 641f8b1 | 2012-07-31 19:15:58 +0000 | [diff] [blame] | 800 | SkClipStack fNewClipStack; |
robertphillips@google.com | beb1af7 | 2012-07-26 18:52:16 +0000 | [diff] [blame] | 801 | GrClipData fNewClipData; |
robertphillips@google.com | 56c79b1 | 2012-07-11 20:57:46 +0000 | [diff] [blame] | 802 | }; |
| 803 | |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 804 | class AutoWideOpenIdentityDraw { |
| 805 | public: |
| 806 | AutoWideOpenIdentityDraw(GrContext* ctx, GrRenderTarget* rt) |
| 807 | : fAutoClip(ctx, AutoClip::kWideOpen_InitialClip) |
bsalomon@google.com | 3cbaa2d | 2012-10-12 14:51:52 +0000 | [diff] [blame] | 808 | , fAutoRT(ctx, rt) { |
| 809 | fAutoMatrix.setIdentity(ctx); |
| 810 | // should never fail with no paint param. |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 811 | SkASSERT(fAutoMatrix.succeeded()); |
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 | |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 814 | private: |
| 815 | AutoClip fAutoClip; |
| 816 | AutoRenderTarget fAutoRT; |
| 817 | AutoMatrix fAutoMatrix; |
| 818 | }; |
| 819 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 820 | /////////////////////////////////////////////////////////////////////////// |
| 821 | // Functions intended for internal use only. |
| 822 | GrGpu* getGpu() { return fGpu; } |
bsalomon@google.com | 1f221a7 | 2011-08-23 20:54:07 +0000 | [diff] [blame] | 823 | const GrGpu* getGpu() const { return fGpu; } |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 824 | GrFontCache* getFontCache() { return fFontCache; } |
bsalomon@google.com | 21c10c5 | 2013-06-13 17:44:07 +0000 | [diff] [blame] | 825 | GrDrawTarget* getTextTarget(); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 826 | const GrIndexBuffer* getQuadIndexBuffer() const; |
bsalomon@google.com | 9923c2b | 2012-06-06 18:21:18 +0000 | [diff] [blame] | 827 | |
bsalomon@google.com | 558a75b | 2011-08-08 17:01:14 +0000 | [diff] [blame] | 828 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 829 | * Stencil buffers add themselves to the cache using addStencilBuffer. findStencilBuffer is |
| 830 | * 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] | 831 | */ |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 832 | void addStencilBuffer(GrStencilBuffer* sb); |
| 833 | GrStencilBuffer* findStencilBuffer(int width, int height, int sampleCnt); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 834 | |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 835 | GrPathRenderer* getPathRenderer( |
| 836 | const SkPath& path, |
sugoi@google.com | 5f74cf8 | 2012-12-17 21:16:45 +0000 | [diff] [blame] | 837 | const SkStrokeRec& stroke, |
bsalomon@google.com | 45a15f5 | 2012-12-10 19:10:17 +0000 | [diff] [blame] | 838 | const GrDrawTarget* target, |
| 839 | bool allowSW, |
| 840 | GrPathRendererChain::DrawType drawType = GrPathRendererChain::kColor_DrawType, |
| 841 | GrPathRendererChain::StencilSupport* stencilSupport = NULL); |
robertphillips@google.com | 2c75681 | 2012-05-22 20:28:23 +0000 | [diff] [blame] | 842 | |
skia.committer@gmail.com | 7475811 | 2013-08-17 07:01:54 +0000 | [diff] [blame^] | 843 | |
robertphillips@google.com | 5955202 | 2012-08-31 13:07:37 +0000 | [diff] [blame] | 844 | #if GR_CACHE_STATS |
robertphillips@google.com | 5f9f2f5 | 2012-08-22 10:57:05 +0000 | [diff] [blame] | 845 | void printCacheStats() const; |
| 846 | #endif |
| 847 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 848 | private: |
bsalomon@google.com | 1d4edd3 | 2012-08-16 18:36:06 +0000 | [diff] [blame] | 849 | // Used to indicate whether a draw should be performed immediately or queued in fDrawBuffer. |
| 850 | enum BufferedDraw { |
| 851 | kYes_BufferedDraw, |
| 852 | kNo_BufferedDraw, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 853 | }; |
bsalomon@google.com | 1d4edd3 | 2012-08-16 18:36:06 +0000 | [diff] [blame] | 854 | BufferedDraw fLastDrawWasBuffered; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 855 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 856 | GrGpu* fGpu; |
| 857 | SkMatrix fViewMatrix; |
| 858 | SkAutoTUnref<GrRenderTarget> fRenderTarget; |
| 859 | const GrClipData* fClip; // TODO: make this ref counted |
| 860 | GrDrawState* fDrawState; |
bsalomon@google.com | 10e04bf | 2012-03-30 14:35:04 +0000 | [diff] [blame] | 861 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 862 | GrResourceCache* fTextureCache; |
| 863 | GrFontCache* fFontCache; |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 864 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 865 | GrPathRendererChain* fPathRendererChain; |
| 866 | GrSoftwarePathRenderer* fSoftwarePathRenderer; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 867 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 868 | GrVertexBufferAllocPool* fDrawBufferVBAllocPool; |
| 869 | GrIndexBufferAllocPool* fDrawBufferIBAllocPool; |
| 870 | GrInOrderDrawBuffer* fDrawBuffer; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 871 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 872 | GrAARectRenderer* fAARectRenderer; |
| 873 | GrOvalRenderer* fOvalRenderer; |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 874 | |
commit-bot@chromium.org | bb6a317 | 2013-05-28 17:25:49 +0000 | [diff] [blame] | 875 | bool fDidTestPMConversions; |
| 876 | int fPMToUPMConversion; |
| 877 | int fUPMToPMConversion; |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 878 | |
robertphillips@google.com | cdb426d | 2012-09-24 19:33:59 +0000 | [diff] [blame] | 879 | struct CleanUpData { |
| 880 | PFCleanUpFunc fFunc; |
| 881 | void* fInfo; |
| 882 | }; |
| 883 | |
robertphillips@google.com | 44a91dc | 2013-07-25 15:32:06 +0000 | [diff] [blame] | 884 | SkTDArray<CleanUpData> fCleanUpData; |
| 885 | |
skia.committer@gmail.com | 956b310 | 2013-07-26 07:00:58 +0000 | [diff] [blame] | 886 | int fMaxTextureSizeOverride; |
robertphillips@google.com | cdb426d | 2012-09-24 19:33:59 +0000 | [diff] [blame] | 887 | |
bsalomon@google.com | 6e4e650 | 2013-02-25 20:12:45 +0000 | [diff] [blame] | 888 | GrContext(); // init must be called after the constructor. |
| 889 | bool init(GrBackend, GrBackendContext); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 890 | |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame] | 891 | void setupDrawBuffer(); |
| 892 | |
bsalomon@google.com | eb6879f | 2013-06-13 19:34:18 +0000 | [diff] [blame] | 893 | class AutoRestoreEffects; |
bsalomon@google.com | 07ea2db | 2012-08-17 14:06:49 +0000 | [diff] [blame] | 894 | /// Sets the paint and returns the target to draw into. The paint can be NULL in which case the |
| 895 | /// draw state is left unmodified. |
bsalomon@google.com | eb6879f | 2013-06-13 19:34:18 +0000 | [diff] [blame] | 896 | GrDrawTarget* prepareToDraw(const GrPaint*, BufferedDraw, AutoRestoreEffects*); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 897 | |
commit-bot@chromium.org | 37d883d | 2013-05-02 13:11:22 +0000 | [diff] [blame] | 898 | void internalDrawPath(GrDrawTarget* target, bool useAA, const SkPath& path, |
commit-bot@chromium.org | 8131283 | 2013-03-22 18:34:09 +0000 | [diff] [blame] | 899 | const SkStrokeRec& stroke); |
jvanverth@google.com | 46d3d39 | 2013-01-22 13:34:01 +0000 | [diff] [blame] | 900 | |
robertphillips@google.com | 3319f33 | 2012-08-13 18:00:36 +0000 | [diff] [blame] | 901 | GrTexture* createResizedTexture(const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 902 | const GrCacheID& cacheID, |
robertphillips@google.com | 3319f33 | 2012-08-13 18:00:36 +0000 | [diff] [blame] | 903 | void* srcData, |
| 904 | size_t rowBytes, |
humper@google.com | b86add1 | 2013-07-25 18:49:07 +0000 | [diff] [blame] | 905 | bool filter); |
robertphillips@google.com | 3319f33 | 2012-08-13 18:00:36 +0000 | [diff] [blame] | 906 | |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 907 | // Needed so GrTexture's returnToCache helper function can call |
| 908 | // addExistingTextureToCache |
| 909 | friend class GrTexture; |
| 910 | |
| 911 | // Add an existing texture to the texture cache. This is intended solely |
| 912 | // for use with textures released from an GrAutoScratchTexture. |
| 913 | void addExistingTextureToCache(GrTexture* texture); |
reed@google.com | fa35e3d | 2012-06-26 20:16:17 +0000 | [diff] [blame] | 914 | |
skia.committer@gmail.com | cdcb2ce | 2013-01-29 07:05:52 +0000 | [diff] [blame] | 915 | /** |
bsalomon@google.com | adc6536 | 2013-01-28 14:26:09 +0000 | [diff] [blame] | 916 | * These functions create premul <-> unpremul effects if it is possible to generate a pair |
| 917 | * of effects that make a readToUPM->writeToPM->readToUPM cycle invariant. Otherwise, they |
| 918 | * return NULL. |
| 919 | */ |
| 920 | const GrEffectRef* createPMToUPMEffect(GrTexture* texture, |
| 921 | bool swapRAndB, |
| 922 | const SkMatrix& matrix); |
| 923 | const GrEffectRef* createUPMToPMEffect(GrTexture* texture, |
| 924 | bool swapRAndB, |
| 925 | const SkMatrix& matrix); |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 926 | |
commit-bot@chromium.org | cae27fe | 2013-07-10 10:14:35 +0000 | [diff] [blame] | 927 | /** |
| 928 | * This callback allows the resource cache to callback into the GrContext |
| 929 | * when the cache is still overbudget after a purge. |
| 930 | */ |
| 931 | static bool OverbudgetCB(void* data); |
| 932 | |
reed@google.com | fa35e3d | 2012-06-26 20:16:17 +0000 | [diff] [blame] | 933 | typedef GrRefCnt INHERITED; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 934 | }; |
| 935 | |
| 936 | /** |
bsalomon@google.com | 1e269b5 | 2012-10-15 14:25:31 +0000 | [diff] [blame] | 937 | * Gets and locks a scratch texture from a descriptor using either exact or approximate criteria. |
| 938 | * Unlocks texture in the destructor. |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 939 | */ |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 940 | class GrAutoScratchTexture : ::GrNoncopyable { |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 941 | public: |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 942 | GrAutoScratchTexture() |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 943 | : fContext(NULL) |
| 944 | , fTexture(NULL) { |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 945 | } |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 946 | |
| 947 | GrAutoScratchTexture(GrContext* context, |
| 948 | const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 949 | GrContext::ScratchTexMatch match = GrContext::kApprox_ScratchTexMatch) |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 950 | : fContext(NULL) |
| 951 | , fTexture(NULL) { |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 952 | this->set(context, desc, match); |
| 953 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 954 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 955 | ~GrAutoScratchTexture() { |
robertphillips@google.com | 9ec0753 | 2012-06-22 12:01:30 +0000 | [diff] [blame] | 956 | this->reset(); |
| 957 | } |
| 958 | |
| 959 | void reset() { |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 960 | if (NULL != fContext && NULL != fTexture) { |
robertphillips@google.com | 9fbcad0 | 2012-09-09 14:44:15 +0000 | [diff] [blame] | 961 | fContext->unlockScratchTexture(fTexture); |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 962 | fTexture->unref(); |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 963 | fTexture = NULL; |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 964 | } |
| 965 | } |
bsalomon@google.com | 8422311 | 2011-07-14 14:45:44 +0000 | [diff] [blame] | 966 | |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 967 | /* |
| 968 | * 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] | 969 | * we do set the returnToCache flag. In this way the texture remains |
| 970 | * "locked" in the texture cache until it is freed and recycled in |
| 971 | * GrTexture::internal_dispose. In reality, the texture has been removed |
| 972 | * from the cache (because this is in AutoScratchTexture) and by not |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 973 | * calling unlockScratchTexture we simply don't re-add it. It will be |
| 974 | * reattached in GrTexture::internal_dispose. |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 975 | * |
| 976 | * Note that the caller is assumed to accept and manage the ref to the |
| 977 | * returned texture. |
| 978 | */ |
| 979 | GrTexture* detach() { |
commit-bot@chromium.org | 3f4ea26 | 2013-05-11 13:21:43 +0000 | [diff] [blame] | 980 | if (NULL == fTexture) { |
| 981 | return NULL; |
| 982 | } |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 983 | GrTexture* texture = fTexture; |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 984 | fTexture = NULL; |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 985 | |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 986 | // This GrAutoScratchTexture has a ref from lockAndRefScratchTexture, which we give up now. |
| 987 | // The cache also has a ref which we are lending to the caller of detach(). When the caller |
| 988 | // lets go of the ref and the ref count goes to 0 internal_dispose will see this flag is |
| 989 | // 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] | 990 | SkASSERT(texture->getRefCnt() > 1); |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 991 | texture->setFlag((GrTextureFlags) GrTexture::kReturnToCache_FlagBit); |
| 992 | texture->unref(); |
tfarina@chromium.org | f6de475 | 2013-08-17 00:02:59 +0000 | [diff] [blame] | 993 | SkASSERT(NULL != texture->getCacheEntry()); |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 994 | |
| 995 | return texture; |
robertphillips@google.com | 15c0fea | 2012-06-22 12:41:43 +0000 | [diff] [blame] | 996 | } |
| 997 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 998 | GrTexture* set(GrContext* context, |
| 999 | const GrTextureDesc& desc, |
bsalomon@google.com | 0797c2c | 2012-12-20 15:13:01 +0000 | [diff] [blame] | 1000 | GrContext::ScratchTexMatch match = GrContext::kApprox_ScratchTexMatch) { |
robertphillips@google.com | 9ec0753 | 2012-06-22 12:01:30 +0000 | [diff] [blame] | 1001 | this->reset(); |
| 1002 | |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1003 | fContext = context; |
| 1004 | if (NULL != fContext) { |
bsalomon@google.com | 95ed55a | 2013-01-24 14:46:47 +0000 | [diff] [blame] | 1005 | fTexture = fContext->lockAndRefScratchTexture(desc, match); |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1006 | if (NULL == fTexture) { |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1007 | fContext = NULL; |
| 1008 | } |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1009 | return fTexture; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1010 | } else { |
| 1011 | return NULL; |
| 1012 | } |
| 1013 | } |
| 1014 | |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1015 | GrTexture* texture() { return fTexture; } |
| 1016 | |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 1017 | private: |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 1018 | GrContext* fContext; |
robertphillips@google.com | 1f47f4f | 2012-08-16 14:49:16 +0000 | [diff] [blame] | 1019 | GrTexture* fTexture; |
senorblanco@chromium.org | aadd9f8 | 2011-07-12 19:44:51 +0000 | [diff] [blame] | 1020 | }; |
| 1021 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 1022 | #endif |