GrDrawTarget.h revision a3baf3be0e2a3128fb73bd41d40d130f75a4dc86
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com/* 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2010 Google Inc. 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 6ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 7ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 8ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com#ifndef GrDrawTarget_DEFINED 9ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com#define GrDrawTarget_DEFINED 10ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 118d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com#include "GrClipData.h" 129381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#include "GrDrawState.h" 13934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com#include "GrIndexBuffer.h" 14ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 158d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com#include "SkClipStack.h" 16a4de8c257ea0be8ff7081f645249b6afe5c48e7ecommit-bot@chromium.org#include "SkMatrix.h" 1712b4e27ae1a29460e91a59f38122483e1faec697sugoi@google.com#include "SkPath.h" 18a2d71482db8b6d752a51c96da74768d7dfc27932robertphillips@google.com#include "SkTArray.h" 19a4de8c257ea0be8ff7081f645249b6afe5c48e7ecommit-bot@chromium.org#include "SkTLazy.h" 20a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org#include "SkTypes.h" 218d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com#include "SkXfermode.h" 2297c88c255cff3dbb8343c5d090526fdbedad6dd6Scroggo 23a2d71482db8b6d752a51c96da74768d7dfc27932robertphillips@google.comclass GrClipData; 24c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.comclass GrDrawTargetCaps; 2564aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.comclass GrPath; 26ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.comclass GrVertexBuffer; 275f74cf8c49701f514b69dc6f1a8b5c0ffd78af0asugoi@google.comclass SkStrokeRec; 2812b4e27ae1a29460e91a59f38122483e1faec697sugoi@google.com 29a4de8c257ea0be8ff7081f645249b6afe5c48e7ecommit-bot@chromium.orgclass GrDrawTarget : public SkRefCnt { 30f66018798099750e639a8fa131fece492a050997bsalomon@google.comprotected: 31bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com class DrawInfo; 32bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com 33bcce8926524827775539874346dd424a9510dbc9bsalomon@google.compublic: 34bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com SK_DECLARE_INST_COUNT(GrDrawTarget) 35bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com 36ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /////////////////////////////////////////////////////////////////////////// 37ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 386e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com // The context may not be fully constructed and should not be used during GrDrawTarget 396e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com // construction. 406e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com GrDrawTarget(GrContext* context); 4125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual ~GrDrawTarget(); 42ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 43ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 4418c9c198f571997463d9a7134dbd88298e592ec2bsalomon@google.com * Gets the capabilities of the draw target. 4518c9c198f571997463d9a7134dbd88298e592ec2bsalomon@google.com */ 46c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com const GrDrawTargetCaps* caps() const { return fCaps.get(); } 4718c9c198f571997463d9a7134dbd88298e592ec2bsalomon@google.com 4818c9c198f571997463d9a7134dbd88298e592ec2bsalomon@google.com /** 49ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Sets the current clip to the region specified by clip. All draws will be 50ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * clipped against this clip if kClip_StateBit is enabled. 51ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 525aaa69e4339e229adfb05e96084a8ec0a590238bbsalomon@google.com * Setting the clip may (or may not) zero out the client's stencil bits. 535aaa69e4339e229adfb05e96084a8ec0a590238bbsalomon@google.com * 54ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param description of the clipping region 55ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 56beb1af78d016d2700c350487a383c6bcfa7e2e20robertphillips@google.com void setClip(const GrClipData* clip); 57ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 58ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 59ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Gets the current clip. 60ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 61ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @return the clip. 62ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 63beb1af78d016d2700c350487a383c6bcfa7e2e20robertphillips@google.com const GrClipData* getClip() const; 64ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 65a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com /** 66a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * Sets the draw state object for the draw target. Note that this does not 67a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * make a copy. The GrDrawTarget will take a reference to passed object. 68a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * Passing NULL will cause the GrDrawTarget to use its own internal draw 69a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * state object rather than an externally provided one. 70a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com */ 71a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com void setDrawState(GrDrawState* drawState); 72a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com 73a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com /** 74a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * Read-only access to the GrDrawTarget's current draw state. 75a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com */ 76a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com const GrDrawState& getDrawState() const { return *fDrawState; } 77a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com 78a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com /** 79a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * Read-write access to the GrDrawTarget's current draw state. Note that 80a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * this doesn't ref. 81a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com */ 82a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com GrDrawState* drawState() { return fDrawState; } 833d0835b6ac0003c18147b6e9ca76a497b92d1d40bsalomon@google.com 843d0835b6ac0003c18147b6e9ca76a497b92d1d40bsalomon@google.com /** 85a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * Color alpha and coverage are two inputs to the drawing pipeline. For some 86a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * blend modes it is safe to fold the coverage into constant or per-vertex 87a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * color alpha value. For other blend modes they must be handled separately. 88a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * Depending on features available in the underlying 3D API this may or may 89a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * not be possible. 90a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * 91e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * This function considers the current draw state and the draw target's 92e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * capabilities to determine whether coverage can be handled correctly. The 93e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * following assumptions are made: 94e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * 1. The caller intends to somehow specify coverage. This can be 95e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * specified either by enabling a coverage stage on the GrDrawState or 96e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * via the vertex layout. 972b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * 2. Other than enabling coverage stages or enabling coverage in the 982b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * layout, the current configuration of the target's GrDrawState is as 992b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * it will be at draw time. 100a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com */ 101a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com bool canApplyCoverage() const; 102a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com 103e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org /** When we're using coverage AA but the blend is incompatible (given gpu 104e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org * limitations) we should disable AA. */ 105e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org bool shouldDisableCoverageAAForBlend() { 106e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org // Enable below if we should draw with AA even when it produces 107e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org // incorrect blending. 108e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org // return false; 109e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org return !this->canApplyCoverage(); 110e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org } 111e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org 112a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com /** 1132b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * Given the current draw state and hw support, will HW AA lines be used (if 1142b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * a line primitive type is drawn)? 115a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com */ 1169381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com bool willUseHWAALines() const; 117a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com 1183d0835b6ac0003c18147b6e9ca76a497b92d1d40bsalomon@google.com /** 119e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * There are three types of "sources" of geometry (vertices and indices) for 120e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * draw calls made on the target. When performing an indexed draw, the 121e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * indices and vertices can use different source types. Once a source is 122934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * specified it can be used for multiple draws. However, the time at which 123934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * the geometry data is no longer editable depends on the source type. 12425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * 12525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Sometimes it is necessary to perform a draw while upstack code has 126e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * already specified geometry that it isn't finished with. So there are push 127e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * and pop methods. This allows the client to push the sources, draw 128e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * something using alternate sources, and then pop to restore the original 129e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * sources. 130e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 131e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * Aside from pushes and pops, a source remains valid until another source 132e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * is set or resetVertexSource / resetIndexSource is called. Drawing from 133e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * a reset source is an error. 134e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 135e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * The three types of sources are: 1361c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 137e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 1. A cpu array (set*SourceToArray). This is useful when the caller 138e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * already provided vertex data in a format compatible with a 139e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * GrVertexLayout. The data in the array is consumed at the time that 140e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * set*SourceToArray is called and subsequent edits to the array will not 141e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * be reflected in draws. 1421c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 14325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * 2. Reserve. This is most useful when the caller has data it must 14425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * transform before drawing and is not long-lived. The caller requests 14525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * that the draw target make room for some amount of vertex and/or index 14625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * data. The target provides ptrs to hold the vertex and/or index data. 14725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * 148d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * The data is writable up until the next drawIndexed, drawNonIndexed, 149e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * drawIndexedInstances, drawRect, copySurface, or pushGeometrySource. At 150e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * this point the data is frozen and the ptrs are no longer valid. 1511c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 152e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * Where the space is allocated and how it is uploaded to the GPU is 153e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * subclass-dependent. 154e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 1551c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 3. Vertex and Index Buffers. This is most useful for geometry that will 156e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * is long-lived. When the data in the buffer is consumed depends on the 157d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * GrDrawTarget subclass. For deferred subclasses the caller has to 158e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * guarantee that the data is still available in the buffers at playback. 159e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * (TODO: Make this more automatic as we have done for read/write pixels) 160b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * 161b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * The size of each vertex is determined by querying the current GrDrawState. 1621c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com */ 1631c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com 1641c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com /** 165e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * Reserves space for vertices and/or indices. Zero can be specifed as 166e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * either the vertex or index count if the caller desires to only reserve 167d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * space for only indices or only vertices. If zero is specifed for 168e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * vertexCount then the vertex source will be unmodified and likewise for 169e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * indexCount. 170ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 171e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * If the function returns true then the reserve suceeded and the vertices 172e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * and indices pointers will point to the space created. 173ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 174e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * If the target cannot make space for the request then this function will 175e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * return false. If vertexCount was non-zero then upon failure the vertex 176e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * source is reset and likewise for indexCount. 177ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 178e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * The pointers to the space allocated for vertices and indices remain valid 179e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * until a drawIndexed, drawNonIndexed, drawIndexedInstances, drawRect, 180e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * copySurface, or push/popGeomtrySource is called. At that point logically a 181e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * snapshot of the data is made and the pointers are invalid. 1821c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 183e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * @param vertexCount the number of vertices to reserve space for. Can be 184b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * 0. Vertex size is queried from the current GrDrawState. 18525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * @param indexCount the number of indices to reserve space for. Can be 0. 186e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * @param vertices will point to reserved vertex space if vertexCount is 187d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * non-zero. Illegal to pass NULL if vertexCount > 0. 18825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * @param indices will point to reserved index space if indexCount is 18925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * non-zero. Illegal to pass NULL if indexCount > 0. 19025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 191b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com bool reserveVertexAndIndexSpace(int vertexCount, 19297805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com int indexCount, 19397805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com void** vertices, 19497805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com void** indices); 19525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com 196ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 197ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Provides hints to caller about the number of vertices and indices 198ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * that can be allocated cheaply. This can be useful if caller is reserving 199ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * space but doesn't know exactly how much geometry is needed. 200ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 201ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Also may hint whether the draw target should be flushed first. This is 202ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * useful for deferred targets. 203ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 204ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param vertexCount in: hint about how many vertices the caller would 205b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * like to allocate. Vertex size is queried from the 206b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * current GrDrawState. 207ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * out: a hint about the number of vertices that can be 208ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * allocated cheaply. Negative means no hint. 209ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Ignored if NULL. 210ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param indexCount in: hint about how many indices the caller would 211ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * like to allocate. 212ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * out: a hint about the number of indices that can be 213ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * allocated cheaply. Negative means no hint. 214ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Ignored if NULL. 215ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 216ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @return true if target should be flushed based on the input values. 217ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 218b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com virtual bool geometryHints(int* vertexCount, 2191c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com int* indexCount) const; 220ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 221ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 2221c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * Sets source of vertex data for the next draw. Array must contain 2231c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * the vertex data when this is called. 224ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 225b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * @param vertexArray cpu array containing vertex data. 226ae683921ffda9108147a29da7319c7eee4dc9245skia.committer@gmail.com * @param vertexCount the number of vertices in the array. Vertex size is 227b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * queried from the current GrDrawState. 228ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 229b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com void setVertexSourceToArray(const void* vertexArray, int vertexCount); 230ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 231ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 2321c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * Sets source of index data for the next indexed draw. Array must contain 2331c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * the indices when this is called. 234ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 235b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * @param indexArray cpu array containing index data. 2361c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * @param indexCount the number of indices in the array. 237ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 2381c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com void setIndexSourceToArray(const void* indexArray, int indexCount); 239ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 240ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 241ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Sets source of vertex data for the next draw. Data does not have to be 242934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * in the buffer until drawIndexed, drawNonIndexed, or drawIndexedInstances. 243ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 244ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param buffer vertex buffer containing vertex data. Must be 245ae683921ffda9108147a29da7319c7eee4dc9245skia.committer@gmail.com * unlocked before draw call. Vertex size is queried 246b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * from current GrDrawState. 247ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 248b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com void setVertexSourceToBuffer(const GrVertexBuffer* buffer); 249ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 250ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 251ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Sets source of index data for the next indexed draw. Data does not have 252934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * to be in the buffer until drawIndexed. 253ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 254ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param buffer index buffer containing indices. Must be unlocked 255ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * before indexed draw call. 256ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 257ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com void setIndexSourceToBuffer(const GrIndexBuffer* buffer); 258d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 25925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 26025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Resets vertex source. Drawing from reset vertices is illegal. Set vertex 26125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * source to reserved, array, or buffer before next draw. May be able to free 26225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * up temporary storage allocated by setVertexSourceToArray or 26325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * reserveVertexSpace. 26425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 26525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void resetVertexSource(); 266d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 26725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 26825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Resets index source. Indexed Drawing from reset indices is illegal. Set 26925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * index source to reserved, array, or buffer before next indexed draw. May 27025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * be able to free up temporary storage allocated by setIndexSourceToArray 27125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * or reserveIndexSpace. 27225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 27397805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com void resetIndexSource(); 274d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 27597805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com /** 27697805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com * Query to find out if the vertex or index source is reserved. 27797805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com */ 27897805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com bool hasReservedVerticesOrIndices() const { 27973d98aace4f74acc39d8de33484c8aec8e917739bsalomon@google.com return kReserved_GeometrySrcType == this->getGeomSrc().fVertexSrc || 28097805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com kReserved_GeometrySrcType == this->getGeomSrc().fIndexSrc; 28197805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com } 282ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 283ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 28425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Pushes and resets the vertex/index sources. Any reserved vertex / index 28525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * data is finalized (i.e. cannot be updated after the matching pop but can 28625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * be drawn from). Must be balanced by a pop. 28725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 28825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void pushGeometrySource(); 28925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com 29025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 29125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Pops the vertex / index sources from the matching push. 29225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 29325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void popGeometrySource(); 29464aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com 29525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 296ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Draws indexed geometry using the current state and current vertex / index 297ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * sources. 298ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 299ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param type The type of primitives to draw. 300ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param startVertex the vertex in the vertex array/buffer corresponding 301ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * to index 0 302ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param startIndex first index to read from index src. 303ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param vertexCount one greater than the max index. 304ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param indexCount the number of index elements to read. The index count 305ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * is effectively trimmed to the last completely 306ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * specified primitive. 307d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * @param devBounds optional bounds hint. This is a promise from the caller, 308d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * not a request for clipping. 309ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 31025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void drawIndexed(GrPrimitiveType type, 31125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int startVertex, 31225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int startIndex, 31325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int vertexCount, 314d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int indexCount, 315d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* devBounds = NULL); 316ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 317ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 318ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Draws non-indexed geometry using the current state and current vertex 319ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * sources. 320ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 321ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param type The type of primitives to draw. 322ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param startVertex the vertex in the vertex array/buffer corresponding 323ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * to index 0 324ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param vertexCount one greater than the max index. 325d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * @param devBounds optional bounds hint. This is a promise from the caller, 326d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * not a request for clipping. 327ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 32825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void drawNonIndexed(GrPrimitiveType type, 32925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int startVertex, 330d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int vertexCount, 331d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* devBounds = NULL); 332ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 33386afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com /** 33464aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com * Draws path into the stencil buffer. The fill must be either even/odd or 33564aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com * winding (not inverse or hairline). It will respect the HW antialias flag 33664aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com * on the draw state (if possible in the 3D API). 33764aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com */ 33832184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org void stencilPath(const GrPath*, SkPath::FillType fill); 33964aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com 34064aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com /** 34132184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org * Draws a path. Fill must not be a hairline. It will respect the HW 342c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org * antialias flag on the draw state (if possible in the 3D API). 343c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org */ 34432184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org void drawPath(const GrPath*, SkPath::FillType fill); 345c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org 346c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org /** 3470406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * Helper function for drawing rects. It performs a geometry src push and pop 3480406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * and thus will finalize any reserved geometry. 349044679ef8c08e1f01afadf5bc08251fe8597df81skia.committer@gmail.com * 350c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param rect the rect to draw 351c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param matrix optional matrix applied to rect (before viewMatrix) 352c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param localRect optional rect that specifies local coords to map onto 353c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * rect. If NULL then rect serves as the local coords. 354c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param localMatrix optional matrix applied to localRect. If 355044679ef8c08e1f01afadf5bc08251fe8597df81skia.committer@gmail.com * srcRect is non-NULL and srcMatrix is non-NULL 356044679ef8c08e1f01afadf5bc08251fe8597df81skia.committer@gmail.com * then srcRect will be transformed by srcMatrix. 3573976825a21532e254311b90b4a9046e25717e335jvanverth@google.com * srcMatrix can be NULL when no srcMatrix is desired. 35886afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com */ 359fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org void drawRect(const SkRect& rect, 3600406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com const SkMatrix* matrix, 361fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org const SkRect* localRect, 3620406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com const SkMatrix* localMatrix) { 3630406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com AutoGeometryPush agp(this); 3640406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com this->onDrawRect(rect, matrix, localRect, localMatrix); 3650406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com } 3663976825a21532e254311b90b4a9046e25717e335jvanverth@google.com 367cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com /** 368c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * Helper for drawRect when the caller doesn't need separate local rects or matrices. 369cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com */ 370fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org void drawSimpleRect(const SkRect& rect, const SkMatrix* matrix = NULL) { 371eb6879f50a5564eeb981ec5616b55bf685eb76fcbsalomon@google.com this->drawRect(rect, matrix, NULL, NULL); 372cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com } 373fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org void drawSimpleRect(const SkIRect& irect, const SkMatrix* matrix = NULL) { 3744469938e92d779dff05e745559e67907bbf21e78reed@google.com SkRect rect = SkRect::Make(irect); 375c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com this->drawRect(rect, matrix, NULL, NULL); 376cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com } 37786afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com 37886afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com /** 379934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * This call is used to draw multiple instances of some geometry with a 380934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * given number of vertices (V) and indices (I) per-instance. The indices in 381934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * the index source must have the form i[k+I] == i[k] + V. Also, all indices 382934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * i[kI] ... i[(k+1)I-1] must be elements of the range kV ... (k+1)V-1. As a 383934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * concrete example, the following index buffer for drawing a series of 384934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * quads each as two triangles each satisfies these conditions with V=4 and 385934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * I=6: 386934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * (0,1,2,0,2,3, 4,5,6,4,6,7, 8,9,10,8,10,11, ...) 387934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * 388934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * The call assumes that the pattern of indices fills the entire index 389934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * source. The size of the index buffer limits the number of instances that 390934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * can be drawn by the GPU in a single draw. However, the caller may specify 391934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * any (positive) number for instanceCount and if necessary multiple GPU 392d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * draws will be issued. Moreover, when drawIndexedInstances is called 393934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * multiple times it may be possible for GrDrawTarget to group them into a 394934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * single GPU draw. 395934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * 396934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param type the type of primitives to draw 397934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param instanceCount the number of instances to draw. Each instance 398934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * consists of verticesPerInstance vertices indexed by 399934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * indicesPerInstance indices drawn as the primitive 400934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * type specified by type. 401934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param verticesPerInstance The number of vertices in each instance (V 402934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * in the above description). 403934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param indicesPerInstance The number of indices in each instance (I 404934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * in the above description). 405d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * @param devBounds optional bounds hint. This is a promise from the caller, 406d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * not a request for clipping. 407934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com */ 408d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void drawIndexedInstances(GrPrimitiveType type, 409d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int instanceCount, 410d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int verticesPerInstance, 411d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int indicesPerInstance, 412d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* devBounds = NULL); 413934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com 414934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com /** 415d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * Clear the current render target if one isn't passed in. Ignores the 416d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * clip and all other draw state (blend mode, stages, etc). Clears the 41756ce48ade325f6f49acb0da31d6252806e4ed7efrobertphillips@google.com * whole thing if rect is NULL, otherwise just the rect. If canIgnoreRect 41856ce48ade325f6f49acb0da31d6252806e4ed7efrobertphillips@google.com * is set then the entire render target can be optionally cleared. 4190b335c1ac100aeacf79a4c98a052286fd46661e7bsalomon@google.com */ 420fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org virtual void clear(const SkIRect* rect, 421c82a8b7aa4ec19fba508c394920a9e88d3e5bd12robertphillips@google.com GrColor color, 42256ce48ade325f6f49acb0da31d6252806e4ed7efrobertphillips@google.com bool canIgnoreRect, 423c82a8b7aa4ec19fba508c394920a9e88d3e5bd12robertphillips@google.com GrRenderTarget* renderTarget = NULL) = 0; 424a9493a3c78f6eb82635ece960b4f16918b885428skia.committer@gmail.com 425e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com /** 426a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org * instantGpuTraceEvent places a single "sign post" type marker into command stream. The 427a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org * argument marker will be the name of the annotation that is added. 428a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org */ 429a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org void instantGpuTraceEvent(const char* marker); 430a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org /** 431a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org * The following two functions are used for marking groups of commands. Use pushGpuTraceEvent 432a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org * to set the beginning of a command set, and popGpuTraceEvent is be called at end of the 433a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org * command set. The argument marker is the name for the annotation that is added. The push and 434a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org * pops can be used hierarchically, but every push must have a match pop. 435a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org */ 436a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org void pushGpuTraceEvent(const char* marker); 437a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org void popGpuTraceEvent(); 438a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org 439a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org /** 440e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * Copies a pixel rectangle from one surface to another. This call may finalize 441e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * reserved vertex/index data (as though a draw call was made). The src pixels 442e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * copied are specified by srcRect. They are copied to a rect of the same 443e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * size in dst with top left at dstPoint. If the src rect is clipped by the 444e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * src bounds then pixel values in the dst rect corresponding to area clipped 445e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * by the src rect are not overwritten. This method can fail and return false 446e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * depending on the type of surface, configs, etc, and the backend-specific 447e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * limitations. If rect is clipped out entirely by the src or dst bounds then 448e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * true is returned since there is no actual copy necessary to succeed. 449e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com */ 450e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com bool copySurface(GrSurface* dst, 451e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com GrSurface* src, 452e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIRect& srcRect, 453e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIPoint& dstPoint); 454116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com /** 455116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com * Function that determines whether a copySurface call would succeed without 456116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com * performing the copy. 457116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com */ 458116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com bool canCopySurface(GrSurface* dst, 459116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com GrSurface* src, 460116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIRect& srcRect, 461116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIPoint& dstPoint); 4620b335c1ac100aeacf79a4c98a052286fd46661e7bsalomon@google.com 463ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com /** 464eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com * This is can be called before allocating a texture to be a dst for copySurface. It will 465eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com * populate the origin, config, and flags fields of the desc such that copySurface is more 466eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com * likely to succeed and be efficient. 467eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com */ 468eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com virtual void initCopySurfaceDstDesc(const GrSurface* src, GrTextureDesc* desc); 469eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com 470eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com 471eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com /** 472ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com * Release any resources that are cached but not currently in use. This 473ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com * is intended to give an application some recourse when resources are low. 474ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com */ 475ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com virtual void purgeResources() {}; 476ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com 477d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com /** 478d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * For subclass internal use to invoke a call to onDraw(). See DrawInfo below. 479d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com */ 480d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void executeDraw(const DrawInfo& info) { this->onDraw(info); } 481d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 482c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org /** 48332184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org * For subclass internal use to invoke a call to onDrawPath(). 484c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org */ 48532184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org void executeDrawPath(const GrPath* path, SkPath::FillType fill, 48632184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org const GrDeviceCoordTexture* dstCopy) { 48732184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org this->onDrawPath(path, fill, dstCopy); 488c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org } 489c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org 49025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 491ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 492873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 493873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * See AutoStateRestore below. 494873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 495873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com enum ASRInit { 496873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com kPreserve_ASRInit, 497873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com kReset_ASRInit 498873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com }; 499873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com 500873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 501873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Saves off the current state and restores it in the destructor. It will 502873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * install a new GrDrawState object on the target (setDrawState) and restore 503873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * the previous one in the destructor. The caller should call drawState() to 504873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * get the new draw state after the ASR is installed. 505873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * 506873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * GrDrawState* state = target->drawState(); 507873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * AutoStateRestore asr(target, GrDrawTarget::kReset_ASRInit). 508873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * state->setRenderTarget(rt); // state refers to the GrDrawState set on 509873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // target before asr was initialized. 510873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // Therefore, rt is set on the GrDrawState 511873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // that will be restored after asr's 512873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // destructor rather than target's current 513d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * // GrDrawState. 514873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 515a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoStateRestore : public ::SkNoncopyable { 516ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com public: 517873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 518873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Default ASR will have no effect unless set() is subsequently called. 519873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 52006afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com AutoStateRestore(); 521873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com 522873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 523873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Saves the state on target. The state will be restored when the ASR 524873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * is destroyed. If this constructor is used do not call set(). 525873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * 526873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * @param init Should the newly installed GrDrawState be a copy of the 527873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * previous state or a default-initialized GrDrawState. 528137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * @param viewMatrix Optional view matrix. If init = kPreserve then the draw state's 529137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * matrix will be preconcat'ed with the param. All stages will be 530137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com updated to compensate for the matrix change. If init == kReset 531137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com then the draw state's matrix will be this matrix. 532873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 533137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com AutoStateRestore(GrDrawTarget* target, ASRInit init, const SkMatrix* viewMatrix = NULL); 534873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com 535ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com ~AutoStateRestore(); 536ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 53706afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com /** 538873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Saves the state on target. The state will be restored when the ASR 539873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * is destroyed. This should only be called once per ASR object and only 540873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * when the default constructor was used. For nested saves use multiple 541873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * ASR objects. 542873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * 543873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * @param init Should the newly installed GrDrawState be a copy of the 544873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * previous state or a default-initialized GrDrawState. 545137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * @param viewMatrix Optional view matrix. If init = kPreserve then the draw state's 546137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * matrix will be preconcat'ed with the param. All stages will be 547137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com updated to compensate for the matrix change. If init == kReset 548137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com then the draw state's matrix will be this matrix. 54906afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com */ 550137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com void set(GrDrawTarget* target, ASRInit init, const SkMatrix* viewMatrix = NULL); 551137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com 552137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com /** 553137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * Like set() but makes the view matrix identity. When init is kReset it is as though 554137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * NULL was passed to set's viewMatrix param. When init is kPreserve it is as though 555137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * the inverse view matrix was passed. If kPreserve is passed and the draw state's matrix 556137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * is not invertible then this may fail. 557137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com */ 558137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com bool setIdentity(GrDrawTarget* target, ASRInit init); 55906afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com 560ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com private: 561137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com GrDrawTarget* fDrawTarget; 562137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com SkTLazy<GrDrawState> fTempState; 563137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com GrDrawState* fSavedState; 564ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 565ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 56625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 5671c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com 568a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoReleaseGeometry : public ::SkNoncopyable { 569ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com public: 570ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com AutoReleaseGeometry(GrDrawTarget* target, 57125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int vertexCount, 57225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int indexCount); 57325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com AutoReleaseGeometry(); 57425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com ~AutoReleaseGeometry(); 5755782d712ffc31557d0cb12d5a220cebb783f6895bsalomon@google.com bool set(GrDrawTarget* target, 57625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int vertexCount, 57725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int indexCount); 578a47a48dca5045d71cbc5de343404045209a13e15bsalomon@google.com bool succeeded() const { return NULL != fTarget; } 579f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org void* vertices() const { SkASSERT(this->succeeded()); return fVertices; } 580f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org void* indices() const { SkASSERT(this->succeeded()); return fIndices; } 581ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com GrPoint* positions() const { 5826513cd06ae34f5d777b3aaea0b4533014d0a10f2bsalomon@google.com return static_cast<GrPoint*>(this->vertices()); 583ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com } 584ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 585ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com private: 58625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void reset(); 587d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 588ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com GrDrawTarget* fTarget; 589ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com void* fVertices; 590ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com void* fIndices; 591ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 592ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 59325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 594ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 595a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoClipRestore : public ::SkNoncopyable { 596ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com public: 597ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com AutoClipRestore(GrDrawTarget* target) { 598ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com fTarget = target; 599ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com fClip = fTarget->getClip(); 600ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com } 601ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 6028d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com AutoClipRestore(GrDrawTarget* target, const SkIRect& newClip); 6038d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com 604ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com ~AutoClipRestore() { 605ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com fTarget->setClip(fClip); 606ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com } 607ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com private: 6088d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com GrDrawTarget* fTarget; 6098d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com const GrClipData* fClip; 6108d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com SkTLazy<SkClipStack> fStack; 6118d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com GrClipData fReplacementClip; 612ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 613d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 61425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 615d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 6160406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com /** 6170406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * Saves the geometry src state at construction and restores in the destructor. It also saves 6180406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * and then restores the vertex attrib state. 6190406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com */ 620a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoGeometryPush : public ::SkNoncopyable { 6210406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com public: 6220406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com AutoGeometryPush(GrDrawTarget* target) 6230406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com : fAttribRestore(target->drawState()) { 624f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(NULL != target); 6250406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com fTarget = target; 6260406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com target->pushGeometrySource(); 6270406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com } 6280406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 6290406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com ~AutoGeometryPush() { fTarget->popGeometrySource(); } 6300406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 6310406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com private: 6320406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com GrDrawTarget* fTarget; 6330406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com GrDrawState::AutoVertexAttribRestore fAttribRestore; 6340406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com }; 6350406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 6360406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com /** 6370406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * Combination of AutoGeometryPush and AutoStateRestore. The vertex attribs will be in default 6380406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * state regardless of ASRInit value. 6390406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com */ 640a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoGeometryAndStatePush : public ::SkNoncopyable { 64125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com public: 642137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com AutoGeometryAndStatePush(GrDrawTarget* target, 643137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com ASRInit init, 644137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com const SkMatrix* viewMatrix = NULL) 645137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com : fState(target, init, viewMatrix) { 646f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(NULL != target); 64725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com fTarget = target; 64825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com target->pushGeometrySource(); 6490406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com if (kPreserve_ASRInit == init) { 6500406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com target->drawState()->setDefaultVertexAttribs(); 6510406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com } 65225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com } 6530406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 6540406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com ~AutoGeometryAndStatePush() { fTarget->popGeometrySource(); } 6550406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 65625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com private: 657b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com AutoStateRestore fState; 6580406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com GrDrawTarget* fTarget; 65925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 660ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 661a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org /////////////////////////////////////////////////////////////////////////// 662a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org // Draw execution tracking (for font atlases and other resources) 663a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org class DrawToken { 664a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org public: 665a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org DrawToken(GrDrawTarget* drawTarget, uint32_t drawID) : 666a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org fDrawTarget(drawTarget), fDrawID(drawID) {} 6677475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 668a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org bool isIssued() { return NULL != fDrawTarget && fDrawTarget->isIssued(fDrawID); } 6697475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 670a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org private: 671a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org GrDrawTarget* fDrawTarget; 672a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org uint32_t fDrawID; // this may wrap, but we're doing direct comparison 673a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org // so that should be okay 674a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org }; 6757475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 676a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org virtual DrawToken getCurrentDrawToken() { return DrawToken(this, 0); } 6777475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 678ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.comprotected: 679471d471dcd7422e5dd9c822c1092b2ba4721dcfebsalomon@google.com 68025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com enum GeometrySrcType { 68125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kNone_GeometrySrcType, //<! src has not been specified 68225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kReserved_GeometrySrcType, //<! src was set using reserve*Space 68325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kArray_GeometrySrcType, //<! src was set using set*SourceToArray 68425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kBuffer_GeometrySrcType //<! src was set using set*SourceToBuffer 68525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 686d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 68725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com struct GeometrySrcState { 68825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com GeometrySrcType fVertexSrc; 68925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com union { 69025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is buffer 69125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com const GrVertexBuffer* fVertexBuffer; 69225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is reserved or array 69325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int fVertexCount; 69425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 695d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 69625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com GeometrySrcType fIndexSrc; 69725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com union { 69825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is buffer 69925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com const GrIndexBuffer* fIndexBuffer; 70025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is reserved or array 70125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int fIndexCount; 70225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 703d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 704b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com size_t fVertexSize; 70525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 706934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com 707934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com int indexCountInCurrentSource() const { 708934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com const GeometrySrcState& src = this->getGeomSrc(); 709934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com switch (src.fIndexSrc) { 710934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kNone_GeometrySrcType: 711934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com return 0; 712934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kReserved_GeometrySrcType: 713934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kArray_GeometrySrcType: 714934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com return src.fIndexCount; 715934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kBuffer_GeometrySrcType: 716adacc7067ad617cdc7bbef39192ca80f4b4d27f9robertphillips@google.com return static_cast<int>(src.fIndexBuffer->sizeInBytes() / sizeof(uint16_t)); 717934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com default: 718934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com GrCrash("Unexpected Index Source."); 719934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com return 0; 720934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com } 721934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com } 722a47a48dca5045d71cbc5de343404045209a13e15bsalomon@google.com 723e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // This method is called by copySurface The srcRect is guaranteed to be entirely within the 724e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // src bounds. Likewise, the dst rect implied by dstPoint and srcRect's width and height falls 725e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // entirely within the dst. The default implementation will draw a rect from the src to the 726e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // dst if the src is a texture and the dst is a render target and fail otherwise. 727e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com virtual bool onCopySurface(GrSurface* dst, 728e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com GrSurface* src, 729e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIRect& srcRect, 730e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIPoint& dstPoint); 731e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com 732e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // Called to determine whether an onCopySurface call would succeed or not. This is useful for 733e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // proxy subclasses to test whether the copy would succeed without executing it yet. Derived 734e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // classes must keep this consistent with their implementation of onCopySurface(). The inputs 735e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // are the same as onCopySurface(), i.e. srcRect and dstPoint are clipped to be inside the src 736e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // and dst bounds. 737116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com virtual bool onCanCopySurface(GrSurface* dst, 738116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com GrSurface* src, 739116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIRect& srcRect, 740116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIPoint& dstPoint); 741e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com 7426e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com GrContext* getContext() { return fContext; } 7436e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com const GrContext* getContext() const { return fContext; } 7446e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com 74502ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // A subclass may override this function if it wishes to be notified when the clip is changed. 74602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // The override should call INHERITED::clipWillBeSet(). 74702ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com virtual void clipWillBeSet(const GrClipData* clipData); 74802ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com 74902ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // subclasses must call this in their destructors to ensure all vertex 75002ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // and index sources have been released (including those held by 75102ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // pushGeometrySource()) 75202ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com void releaseGeometry(); 75302ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com 75402ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // accessors for derived classes 75502ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com const GeometrySrcState& getGeomSrc() const { return fGeoSrcStateStack.back(); } 756b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com // it is preferable to call this rather than getGeomSrc()->fVertexSize because of the assert. 757b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com size_t getVertexSize() const { 75802ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // the vertex layout is only valid if a vertex source has been specified. 759f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(this->getGeomSrc().fVertexSrc != kNone_GeometrySrcType); 760b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com return this->getGeomSrc().fVertexSize; 761a47a48dca5045d71cbc5de343404045209a13e15bsalomon@google.com } 7625782d712ffc31557d0cb12d5a220cebb783f6895bsalomon@google.com 763bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com // Subclass must initialize this in its constructor. 764c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com SkAutoTUnref<const GrDrawTargetCaps> fCaps; 76502ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com 766d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com /** 767d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * Used to communicate draws to subclass's onDraw function. 768d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com */ 76974749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com class DrawInfo { 77074749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com public: 77174749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com DrawInfo(const DrawInfo& di) { (*this) = di; } 772d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com DrawInfo& operator =(const DrawInfo& di); 77374749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 77474749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com GrPrimitiveType primitiveType() const { return fPrimitiveType; } 77574749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int startVertex() const { return fStartVertex; } 77674749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int startIndex() const { return fStartIndex; } 77774749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int vertexCount() const { return fVertexCount; } 77874749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int indexCount() const { return fIndexCount; } 779d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int verticesPerInstance() const { return fVerticesPerInstance; } 780d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int indicesPerInstance() const { return fIndicesPerInstance; } 781d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int instanceCount() const { return fInstanceCount; } 78274749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 78374749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com bool isIndexed() const { return fIndexCount > 0; } 784515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org#ifdef SK_DEBUG 785d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com bool isInstanced() const; // this version is longer because of asserts 786d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com#else 787d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com bool isInstanced() const { return fInstanceCount > 0; } 788d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com#endif 789d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 790d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com // adds or remove instances 791d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void adjustInstanceCount(int instanceOffset); 792d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com // shifts the start vertex 793d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void adjustStartVertex(int vertexOffset); 794d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com // shifts the start index 795d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void adjustStartIndex(int indexOffset); 796d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 797d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void setDevBounds(const SkRect& bounds) { 798d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com fDevBoundsStorage = bounds; 799d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com fDevBounds = &fDevBoundsStorage; 800d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com } 801d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* getDevBounds() const { return fDevBounds; } 80205a2ee052c9ef4c781b7b590b00b3d2da3b3449askia.committer@gmail.com 80326e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com // NULL if no copy of the dst is needed for the draw. 80426e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com const GrDeviceCoordTexture* getDstCopy() const { 80526e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com if (NULL != fDstCopy.texture()) { 80626e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com return &fDstCopy; 80726e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com } else { 80826e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com return NULL; 80926e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com } 81026e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com } 81126e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com 81274749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com private: 813d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com DrawInfo() { fDevBounds = NULL; } 814d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 81574749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com friend class GrDrawTarget; 816d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 81726e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com GrPrimitiveType fPrimitiveType; 81874749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 81926e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fStartVertex; 82026e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fStartIndex; 82126e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fVertexCount; 82226e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fIndexCount; 823d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 82426e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fInstanceCount; 82526e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fVerticesPerInstance; 82626e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fIndicesPerInstance; 827d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 82826e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com SkRect fDevBoundsStorage; 82926e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com SkRect* fDevBounds; 83026e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com 83126e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com GrDeviceCoordTexture fDstCopy; 83274749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com }; 83374749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 83402ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.comprivate: 83502ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // A subclass can optionally overload this function to be notified before 83602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // vertex and index space is reserved. 837b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com virtual void willReserveVertexAndIndexSpace(int vertexCount, int indexCount) {} 83897805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com 83925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // implemented by subclass to allocate space for reserved geom 840a63389843dd18003382d61c2e4610af09ed07d38jvanverth@google.com virtual bool onReserveVertexSpace(size_t vertexSize, int vertexCount, void** vertices) = 0; 84125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual bool onReserveIndexSpace(int indexCount, void** indices) = 0; 84225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // implemented by subclass to handle release of reserved geom space 84325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseReservedVertexSpace() = 0; 84425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseReservedIndexSpace() = 0; 84525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // subclass must consume array contents when set 84602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com virtual void onSetVertexSourceToArray(const void* vertexArray, int vertexCount) = 0; 84702ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com virtual void onSetIndexSourceToArray(const void* indexArray, int indexCount) = 0; 84825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // subclass is notified that geom source will be set away from an array 84925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseVertexArray() = 0; 85025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseIndexArray() = 0; 85102ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // subclass overrides to be notified just before geo src state is pushed/popped. 85225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void geometrySourceWillPush() = 0; 85325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void geometrySourceWillPop(const GeometrySrcState& restoredState) = 0; 85425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // subclass called to perform drawing 85574749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com virtual void onDraw(const DrawInfo&) = 0; 8560406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // Implementation of drawRect. The geometry src and vertex attribs will already 8570406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // be saved before this is called and restored afterwards. A subclass may override 8580406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // this to perform more optimal rect rendering. Its draws should be funneled through 8590406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // one of the public GrDrawTarget draw methods (e.g. drawNonIndexed, 8600406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // drawIndexedInstances, ...). The base class draws a two triangle fan using 8610406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // drawNonIndexed from reserved vertex space. 862fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org virtual void onDrawRect(const SkRect& rect, 8630406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com const SkMatrix* matrix, 864fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org const SkRect* localRect, 8650406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com const SkMatrix* localMatrix); 86632184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org 86732184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org virtual void onStencilPath(const GrPath*, SkPath::FillType) = 0; 86832184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org virtual void onDrawPath(const GrPath*, SkPath::FillType, 869c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org const GrDeviceCoordTexture* dstCopy) = 0; 87064aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com 871a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org virtual void onInstantGpuTraceEvent(const char* marker) = 0; 872a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org virtual void onPushGpuTraceEvent(const char* marker) = 0; 873a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org virtual void onPopGpuTraceEvent() = 0; 874a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org 875e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com // helpers for reserving vertex and index space. 876b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com bool reserveVertexSpace(size_t vertexSize, 877e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com int vertexCount, 878e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com void** vertices); 879e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com bool reserveIndexSpace(int indexCount, void** indices); 880d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 881e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com // called by drawIndexed and drawNonIndexed. Use a negative indexCount to 882e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com // indicate non-indexed drawing. 883e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com bool checkDraw(GrPrimitiveType type, int startVertex, 884e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com int startIndex, int vertexCount, 885e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com int indexCount) const; 88625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // called when setting a new vert/idx source to unref prev vb/ib 88725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void releasePreviousVertexSource(); 88825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void releasePreviousIndexSource(); 889d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 89026e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com // Makes a copy of the dst if it is necessary for the draw. Returns false if a copy is required 89126e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com // but couldn't be made. Otherwise, returns true. 892c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org bool setupDstReadIfNecessary(DrawInfo* info) { 893c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org return this->setupDstReadIfNecessary(&info->fDstCopy, info->getDevBounds()); 894c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org } 895c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org bool setupDstReadIfNecessary(GrDeviceCoordTexture* dstCopy, const SkRect* drawBounds); 89626e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com 897a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org // Check to see if this set of draw commands has been sent out 898a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org virtual bool isIssued(uint32_t drawID) { return true; } 8997475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 90025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com enum { 90125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kPreallocGeoSrcStateStackCnt = 4, 902ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 90302ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com SkSTArray<kPreallocGeoSrcStateStackCnt, GeometrySrcState, true> fGeoSrcStateStack; 90402ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com const GrClipData* fClip; 90502ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com GrDrawState* fDrawState; 90602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com GrDrawState fDefaultDrawState; 9076e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com // The context owns us, not vice-versa, so this ptr is not ref'ed by DrawTarget. 9086e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com GrContext* fContext; 909a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org // To keep track that we always have at least as many debug marker pushes as pops 910a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org int fPushGpuTraceCount; 911fa35e3ddcc9d130ce87c927218bdf27879c38711reed@google.com 912a4de8c257ea0be8ff7081f645249b6afe5c48e7ecommit-bot@chromium.org typedef SkRefCnt INHERITED; 913ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com}; 914ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 915ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com#endif 916