GrDrawTarget.h revision a0b40280a49a8a43af7929ead3b3489951c58501
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 103a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com /** 1042b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * Given the current draw state and hw support, will HW AA lines be used (if 1052b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * a line primitive type is drawn)? 106a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com */ 1079381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com bool willUseHWAALines() const; 108a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com 1093d0835b6ac0003c18147b6e9ca76a497b92d1d40bsalomon@google.com /** 110e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * There are three types of "sources" of geometry (vertices and indices) for 111e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * draw calls made on the target. When performing an indexed draw, the 112e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * indices and vertices can use different source types. Once a source is 113934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * specified it can be used for multiple draws. However, the time at which 114934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * the geometry data is no longer editable depends on the source type. 11525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * 11625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Sometimes it is necessary to perform a draw while upstack code has 117e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * already specified geometry that it isn't finished with. So there are push 118e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * and pop methods. This allows the client to push the sources, draw 119e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * something using alternate sources, and then pop to restore the original 120e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * sources. 121e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 122e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * Aside from pushes and pops, a source remains valid until another source 123e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * is set or resetVertexSource / resetIndexSource is called. Drawing from 124e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * a reset source is an error. 125e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 126e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * The three types of sources are: 1271c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 128e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 1. A cpu array (set*SourceToArray). This is useful when the caller 129e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * already provided vertex data in a format compatible with a 130e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * GrVertexLayout. The data in the array is consumed at the time that 131e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * set*SourceToArray is called and subsequent edits to the array will not 132e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * be reflected in draws. 1331c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 13425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * 2. Reserve. This is most useful when the caller has data it must 13525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * transform before drawing and is not long-lived. The caller requests 13625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * that the draw target make room for some amount of vertex and/or index 13725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * data. The target provides ptrs to hold the vertex and/or index data. 13825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * 139d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * The data is writable up until the next drawIndexed, drawNonIndexed, 140e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * drawIndexedInstances, drawRect, copySurface, or pushGeometrySource. At 141e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * this point the data is frozen and the ptrs are no longer valid. 1421c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 143e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * Where the space is allocated and how it is uploaded to the GPU is 144e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * subclass-dependent. 145e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 1461c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 3. Vertex and Index Buffers. This is most useful for geometry that will 147e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * is long-lived. When the data in the buffer is consumed depends on the 148d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * GrDrawTarget subclass. For deferred subclasses the caller has to 149e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * guarantee that the data is still available in the buffers at playback. 150e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * (TODO: Make this more automatic as we have done for read/write pixels) 151b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * 152b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * The size of each vertex is determined by querying the current GrDrawState. 1531c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com */ 1541c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com 1551c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com /** 156e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * Reserves space for vertices and/or indices. Zero can be specifed as 157e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * either the vertex or index count if the caller desires to only reserve 158d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * space for only indices or only vertices. If zero is specifed for 159e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * vertexCount then the vertex source will be unmodified and likewise for 160e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * indexCount. 161ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 162e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * If the function returns true then the reserve suceeded and the vertices 163e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * and indices pointers will point to the space created. 164ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 165e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * If the target cannot make space for the request then this function will 166e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * return false. If vertexCount was non-zero then upon failure the vertex 167e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * source is reset and likewise for indexCount. 168ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 169e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * The pointers to the space allocated for vertices and indices remain valid 170e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * until a drawIndexed, drawNonIndexed, drawIndexedInstances, drawRect, 171e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * copySurface, or push/popGeomtrySource is called. At that point logically a 172e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * snapshot of the data is made and the pointers are invalid. 1731c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 174e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * @param vertexCount the number of vertices to reserve space for. Can be 175b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * 0. Vertex size is queried from the current GrDrawState. 17625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * @param indexCount the number of indices to reserve space for. Can be 0. 177e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * @param vertices will point to reserved vertex space if vertexCount is 178d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * non-zero. Illegal to pass NULL if vertexCount > 0. 17925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * @param indices will point to reserved index space if indexCount is 18025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * non-zero. Illegal to pass NULL if indexCount > 0. 18125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 182b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com bool reserveVertexAndIndexSpace(int vertexCount, 18397805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com int indexCount, 18497805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com void** vertices, 18597805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com void** indices); 18625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com 187ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 188ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Provides hints to caller about the number of vertices and indices 189ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * that can be allocated cheaply. This can be useful if caller is reserving 190ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * space but doesn't know exactly how much geometry is needed. 191ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 192ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Also may hint whether the draw target should be flushed first. This is 193ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * useful for deferred targets. 194ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 195ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param vertexCount in: hint about how many vertices the caller would 196b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * like to allocate. Vertex size is queried from the 197b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * current GrDrawState. 198ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * out: a hint about the number of vertices that can be 199ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * allocated cheaply. Negative means no hint. 200ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Ignored if NULL. 201ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param indexCount in: hint about how many indices the caller would 202ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * like to allocate. 203ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * out: a hint about the number of indices that can be 204ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * allocated cheaply. Negative means no hint. 205ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Ignored if NULL. 206ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 207ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @return true if target should be flushed based on the input values. 208ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 209b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com virtual bool geometryHints(int* vertexCount, 2101c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com int* indexCount) const; 211ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 212ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 2131c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * Sets source of vertex data for the next draw. Array must contain 2141c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * the vertex data when this is called. 215ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 216b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * @param vertexArray cpu array containing vertex data. 217ae683921ffda9108147a29da7319c7eee4dc9245skia.committer@gmail.com * @param vertexCount the number of vertices in the array. Vertex size is 218b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * queried from the current GrDrawState. 219ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 220b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com void setVertexSourceToArray(const void* vertexArray, int vertexCount); 221ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 222ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 2231c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * Sets source of index data for the next indexed draw. Array must contain 2241c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * the indices when this is called. 225ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 226b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * @param indexArray cpu array containing index data. 2271c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * @param indexCount the number of indices in the array. 228ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 2291c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com void setIndexSourceToArray(const void* indexArray, int indexCount); 230ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 231ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 232ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Sets source of vertex data for the next draw. Data does not have to be 233934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * in the buffer until drawIndexed, drawNonIndexed, or drawIndexedInstances. 234ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 235ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param buffer vertex buffer containing vertex data. Must be 236ae683921ffda9108147a29da7319c7eee4dc9245skia.committer@gmail.com * unlocked before draw call. Vertex size is queried 237b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * from current GrDrawState. 238ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 239b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com void setVertexSourceToBuffer(const GrVertexBuffer* buffer); 240ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 241ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 242ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Sets source of index data for the next indexed draw. Data does not have 243934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * to be in the buffer until drawIndexed. 244ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 245ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param buffer index buffer containing indices. Must be unlocked 246ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * before indexed draw call. 247ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 248ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com void setIndexSourceToBuffer(const GrIndexBuffer* buffer); 249d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 25025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 25125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Resets vertex source. Drawing from reset vertices is illegal. Set vertex 25225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * source to reserved, array, or buffer before next draw. May be able to free 25325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * up temporary storage allocated by setVertexSourceToArray or 25425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * reserveVertexSpace. 25525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 25625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void resetVertexSource(); 257d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 25825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 25925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Resets index source. Indexed Drawing from reset indices is illegal. Set 26025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * index source to reserved, array, or buffer before next indexed draw. May 26125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * be able to free up temporary storage allocated by setIndexSourceToArray 26225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * or reserveIndexSpace. 26325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 26497805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com void resetIndexSource(); 265d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 26697805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com /** 26797805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com * Query to find out if the vertex or index source is reserved. 26897805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com */ 26997805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com bool hasReservedVerticesOrIndices() const { 27073d98aace4f74acc39d8de33484c8aec8e917739bsalomon@google.com return kReserved_GeometrySrcType == this->getGeomSrc().fVertexSrc || 27197805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com kReserved_GeometrySrcType == this->getGeomSrc().fIndexSrc; 27297805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com } 273ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 274ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 27525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Pushes and resets the vertex/index sources. Any reserved vertex / index 27625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * data is finalized (i.e. cannot be updated after the matching pop but can 27725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * be drawn from). Must be balanced by a pop. 27825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 27925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void pushGeometrySource(); 28025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com 28125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 28225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Pops the vertex / index sources from the matching push. 28325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 28425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void popGeometrySource(); 28564aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com 28625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 287ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Draws indexed geometry using the current state and current vertex / index 288ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * sources. 289ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 290ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param type The type of primitives to draw. 291ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param startVertex the vertex in the vertex array/buffer corresponding 292ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * to index 0 293ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param startIndex first index to read from index src. 294ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param vertexCount one greater than the max index. 295ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param indexCount the number of index elements to read. The index count 296ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * is effectively trimmed to the last completely 297ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * specified primitive. 298d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * @param devBounds optional bounds hint. This is a promise from the caller, 299d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * not a request for clipping. 300ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 30125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void drawIndexed(GrPrimitiveType type, 30225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int startVertex, 30325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int startIndex, 30425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int vertexCount, 305d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int indexCount, 306d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* devBounds = NULL); 307ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 308ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 309ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Draws non-indexed geometry using the current state and current vertex 310ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * sources. 311ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 312ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param type The type of primitives to draw. 313ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param startVertex the vertex in the vertex array/buffer corresponding 314ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * to index 0 315ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param vertexCount one greater than the max index. 316d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * @param devBounds optional bounds hint. This is a promise from the caller, 317d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * not a request for clipping. 318ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 31925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void drawNonIndexed(GrPrimitiveType type, 32025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int startVertex, 321d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int vertexCount, 322d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* devBounds = NULL); 323ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 32486afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com /** 32564aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com * Draws path into the stencil buffer. The fill must be either even/odd or 32664aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com * winding (not inverse or hairline). It will respect the HW antialias flag 32764aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com * on the draw state (if possible in the 3D API). 32864aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com */ 3295f74cf8c49701f514b69dc6f1a8b5c0ffd78af0asugoi@google.com void stencilPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fill); 33064aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com 33164aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com /** 3320406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * Helper function for drawing rects. It performs a geometry src push and pop 3330406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * and thus will finalize any reserved geometry. 334044679ef8c08e1f01afadf5bc08251fe8597df81skia.committer@gmail.com * 335c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param rect the rect to draw 336c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param matrix optional matrix applied to rect (before viewMatrix) 337c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param localRect optional rect that specifies local coords to map onto 338c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * rect. If NULL then rect serves as the local coords. 339c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param localMatrix optional matrix applied to localRect. If 340044679ef8c08e1f01afadf5bc08251fe8597df81skia.committer@gmail.com * srcRect is non-NULL and srcMatrix is non-NULL 341044679ef8c08e1f01afadf5bc08251fe8597df81skia.committer@gmail.com * then srcRect will be transformed by srcMatrix. 3423976825a21532e254311b90b4a9046e25717e335jvanverth@google.com * srcMatrix can be NULL when no srcMatrix is desired. 34386afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com */ 344fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org void drawRect(const SkRect& rect, 3450406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com const SkMatrix* matrix, 346fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org const SkRect* localRect, 3470406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com const SkMatrix* localMatrix) { 3480406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com AutoGeometryPush agp(this); 3490406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com this->onDrawRect(rect, matrix, localRect, localMatrix); 3500406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com } 3513976825a21532e254311b90b4a9046e25717e335jvanverth@google.com 352cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com /** 353c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * Helper for drawRect when the caller doesn't need separate local rects or matrices. 354cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com */ 355fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org void drawSimpleRect(const SkRect& rect, const SkMatrix* matrix = NULL) { 356eb6879f50a5564eeb981ec5616b55bf685eb76fcbsalomon@google.com this->drawRect(rect, matrix, NULL, NULL); 357cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com } 358fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org void drawSimpleRect(const SkIRect& irect, const SkMatrix* matrix = NULL) { 359cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com SkRect rect = SkRect::MakeFromIRect(irect); 360c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com this->drawRect(rect, matrix, NULL, NULL); 361cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com } 36286afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com 36386afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com /** 364934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * This call is used to draw multiple instances of some geometry with a 365934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * given number of vertices (V) and indices (I) per-instance. The indices in 366934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * the index source must have the form i[k+I] == i[k] + V. Also, all indices 367934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * i[kI] ... i[(k+1)I-1] must be elements of the range kV ... (k+1)V-1. As a 368934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * concrete example, the following index buffer for drawing a series of 369934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * quads each as two triangles each satisfies these conditions with V=4 and 370934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * I=6: 371934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * (0,1,2,0,2,3, 4,5,6,4,6,7, 8,9,10,8,10,11, ...) 372934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * 373934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * The call assumes that the pattern of indices fills the entire index 374934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * source. The size of the index buffer limits the number of instances that 375934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * can be drawn by the GPU in a single draw. However, the caller may specify 376934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * any (positive) number for instanceCount and if necessary multiple GPU 377d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * draws will be issued. Moreover, when drawIndexedInstances is called 378934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * multiple times it may be possible for GrDrawTarget to group them into a 379934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * single GPU draw. 380934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * 381934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param type the type of primitives to draw 382934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param instanceCount the number of instances to draw. Each instance 383934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * consists of verticesPerInstance vertices indexed by 384934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * indicesPerInstance indices drawn as the primitive 385934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * type specified by type. 386934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param verticesPerInstance The number of vertices in each instance (V 387934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * in the above description). 388934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param indicesPerInstance The number of indices in each instance (I 389934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * in the above description). 390d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * @param devBounds optional bounds hint. This is a promise from the caller, 391d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * not a request for clipping. 392934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com */ 393d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void drawIndexedInstances(GrPrimitiveType type, 394d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int instanceCount, 395d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int verticesPerInstance, 396d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int indicesPerInstance, 397d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* devBounds = NULL); 398934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com 399934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com /** 400d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * Clear the current render target if one isn't passed in. Ignores the 401d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * clip and all other draw state (blend mode, stages, etc). Clears the 402c82a8b7aa4ec19fba508c394920a9e88d3e5bd12robertphillips@google.com * whole thing if rect is NULL, otherwise just the rect. 4030b335c1ac100aeacf79a4c98a052286fd46661e7bsalomon@google.com */ 404fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org virtual void clear(const SkIRect* rect, 405c82a8b7aa4ec19fba508c394920a9e88d3e5bd12robertphillips@google.com GrColor color, 406c82a8b7aa4ec19fba508c394920a9e88d3e5bd12robertphillips@google.com GrRenderTarget* renderTarget = NULL) = 0; 407a9493a3c78f6eb82635ece960b4f16918b885428skia.committer@gmail.com 408e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com /** 409e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * Copies a pixel rectangle from one surface to another. This call may finalize 410e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * reserved vertex/index data (as though a draw call was made). The src pixels 411e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * copied are specified by srcRect. They are copied to a rect of the same 412e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * size in dst with top left at dstPoint. If the src rect is clipped by the 413e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * src bounds then pixel values in the dst rect corresponding to area clipped 414e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * by the src rect are not overwritten. This method can fail and return false 415e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * depending on the type of surface, configs, etc, and the backend-specific 416e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * limitations. If rect is clipped out entirely by the src or dst bounds then 417e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * true is returned since there is no actual copy necessary to succeed. 418e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com */ 419e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com bool copySurface(GrSurface* dst, 420e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com GrSurface* src, 421e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIRect& srcRect, 422e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIPoint& dstPoint); 423116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com /** 424116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com * Function that determines whether a copySurface call would succeed without 425116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com * performing the copy. 426116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com */ 427116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com bool canCopySurface(GrSurface* dst, 428116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com GrSurface* src, 429116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIRect& srcRect, 430116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIPoint& dstPoint); 4310b335c1ac100aeacf79a4c98a052286fd46661e7bsalomon@google.com 432ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com /** 433eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com * This is can be called before allocating a texture to be a dst for copySurface. It will 434eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com * populate the origin, config, and flags fields of the desc such that copySurface is more 435eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com * likely to succeed and be efficient. 436eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com */ 437eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com virtual void initCopySurfaceDstDesc(const GrSurface* src, GrTextureDesc* desc); 438eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com 439eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com 440eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com /** 441ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com * Release any resources that are cached but not currently in use. This 442ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com * is intended to give an application some recourse when resources are low. 443ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com */ 444ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com virtual void purgeResources() {}; 445ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com 446d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com /** 447d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * For subclass internal use to invoke a call to onDraw(). See DrawInfo below. 448d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com */ 449d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void executeDraw(const DrawInfo& info) { this->onDraw(info); } 450d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 45125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 452ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 453873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 454873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * See AutoStateRestore below. 455873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 456873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com enum ASRInit { 457873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com kPreserve_ASRInit, 458873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com kReset_ASRInit 459873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com }; 460873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com 461873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 462873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Saves off the current state and restores it in the destructor. It will 463873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * install a new GrDrawState object on the target (setDrawState) and restore 464873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * the previous one in the destructor. The caller should call drawState() to 465873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * get the new draw state after the ASR is installed. 466873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * 467873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * GrDrawState* state = target->drawState(); 468873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * AutoStateRestore asr(target, GrDrawTarget::kReset_ASRInit). 469873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * state->setRenderTarget(rt); // state refers to the GrDrawState set on 470873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // target before asr was initialized. 471873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // Therefore, rt is set on the GrDrawState 472873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // that will be restored after asr's 473873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // destructor rather than target's current 474d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * // GrDrawState. 475873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 476a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoStateRestore : public ::SkNoncopyable { 477ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com public: 478873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 479873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Default ASR will have no effect unless set() is subsequently called. 480873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 48106afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com AutoStateRestore(); 482873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com 483873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 484873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Saves the state on target. The state will be restored when the ASR 485873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * is destroyed. If this constructor is used do not call set(). 486873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * 487873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * @param init Should the newly installed GrDrawState be a copy of the 488873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * previous state or a default-initialized GrDrawState. 489137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * @param viewMatrix Optional view matrix. If init = kPreserve then the draw state's 490137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * matrix will be preconcat'ed with the param. All stages will be 491137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com updated to compensate for the matrix change. If init == kReset 492137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com then the draw state's matrix will be this matrix. 493873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 494137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com AutoStateRestore(GrDrawTarget* target, ASRInit init, const SkMatrix* viewMatrix = NULL); 495873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com 496ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com ~AutoStateRestore(); 497ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 49806afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com /** 499873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Saves the state on target. The state will be restored when the ASR 500873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * is destroyed. This should only be called once per ASR object and only 501873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * when the default constructor was used. For nested saves use multiple 502873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * ASR objects. 503873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * 504873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * @param init Should the newly installed GrDrawState be a copy of the 505873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * previous state or a default-initialized GrDrawState. 506137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * @param viewMatrix Optional view matrix. If init = kPreserve then the draw state's 507137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * matrix will be preconcat'ed with the param. All stages will be 508137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com updated to compensate for the matrix change. If init == kReset 509137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com then the draw state's matrix will be this matrix. 51006afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com */ 511137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com void set(GrDrawTarget* target, ASRInit init, const SkMatrix* viewMatrix = NULL); 512137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com 513137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com /** 514137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * Like set() but makes the view matrix identity. When init is kReset it is as though 515137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * NULL was passed to set's viewMatrix param. When init is kPreserve it is as though 516137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * the inverse view matrix was passed. If kPreserve is passed and the draw state's matrix 517137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * is not invertible then this may fail. 518137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com */ 519137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com bool setIdentity(GrDrawTarget* target, ASRInit init); 52006afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com 521ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com private: 522137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com GrDrawTarget* fDrawTarget; 523137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com SkTLazy<GrDrawState> fTempState; 524137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com GrDrawState* fSavedState; 525ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 526ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 52725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 5281c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com 529a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoReleaseGeometry : public ::SkNoncopyable { 530ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com public: 531ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com AutoReleaseGeometry(GrDrawTarget* target, 53225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int vertexCount, 53325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int indexCount); 53425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com AutoReleaseGeometry(); 53525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com ~AutoReleaseGeometry(); 5365782d712ffc31557d0cb12d5a220cebb783f6895bsalomon@google.com bool set(GrDrawTarget* target, 53725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int vertexCount, 53825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int indexCount); 539a47a48dca5045d71cbc5de343404045209a13e15bsalomon@google.com bool succeeded() const { return NULL != fTarget; } 540f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org void* vertices() const { SkASSERT(this->succeeded()); return fVertices; } 541f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org void* indices() const { SkASSERT(this->succeeded()); return fIndices; } 542ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com GrPoint* positions() const { 5436513cd06ae34f5d777b3aaea0b4533014d0a10f2bsalomon@google.com return static_cast<GrPoint*>(this->vertices()); 544ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com } 545ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 546ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com private: 54725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void reset(); 548d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 549ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com GrDrawTarget* fTarget; 550ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com void* fVertices; 551ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com void* fIndices; 552ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 553ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 55425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 555ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 556a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoClipRestore : public ::SkNoncopyable { 557ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com public: 558ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com AutoClipRestore(GrDrawTarget* target) { 559ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com fTarget = target; 560ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com fClip = fTarget->getClip(); 561ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com } 562ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 5638d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com AutoClipRestore(GrDrawTarget* target, const SkIRect& newClip); 5648d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com 565ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com ~AutoClipRestore() { 566ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com fTarget->setClip(fClip); 567ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com } 568ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com private: 5698d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com GrDrawTarget* fTarget; 5708d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com const GrClipData* fClip; 5718d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com SkTLazy<SkClipStack> fStack; 5728d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com GrClipData fReplacementClip; 573ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 574d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 57525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 576d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 5770406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com /** 5780406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * Saves the geometry src state at construction and restores in the destructor. It also saves 5790406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * and then restores the vertex attrib state. 5800406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com */ 581a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoGeometryPush : public ::SkNoncopyable { 5820406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com public: 5830406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com AutoGeometryPush(GrDrawTarget* target) 5840406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com : fAttribRestore(target->drawState()) { 585f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(NULL != target); 5860406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com fTarget = target; 5870406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com target->pushGeometrySource(); 5880406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com } 5890406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 5900406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com ~AutoGeometryPush() { fTarget->popGeometrySource(); } 5910406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 5920406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com private: 5930406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com GrDrawTarget* fTarget; 5940406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com GrDrawState::AutoVertexAttribRestore fAttribRestore; 5950406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com }; 5960406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 5970406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com /** 5980406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * Combination of AutoGeometryPush and AutoStateRestore. The vertex attribs will be in default 5990406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * state regardless of ASRInit value. 6000406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com */ 601a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoGeometryAndStatePush : public ::SkNoncopyable { 60225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com public: 603137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com AutoGeometryAndStatePush(GrDrawTarget* target, 604137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com ASRInit init, 605137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com const SkMatrix* viewMatrix = NULL) 606137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com : fState(target, init, viewMatrix) { 607f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(NULL != target); 60825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com fTarget = target; 60925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com target->pushGeometrySource(); 6100406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com if (kPreserve_ASRInit == init) { 6110406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com target->drawState()->setDefaultVertexAttribs(); 6120406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com } 61325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com } 6140406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 6150406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com ~AutoGeometryAndStatePush() { fTarget->popGeometrySource(); } 6160406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 61725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com private: 618b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com AutoStateRestore fState; 6190406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com GrDrawTarget* fTarget; 62025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 621ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 622a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org /////////////////////////////////////////////////////////////////////////// 623a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org // Draw execution tracking (for font atlases and other resources) 624a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org class DrawToken { 625a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org public: 626a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org DrawToken(GrDrawTarget* drawTarget, uint32_t drawID) : 627a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org fDrawTarget(drawTarget), fDrawID(drawID) {} 6287475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 629a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org bool isIssued() { return NULL != fDrawTarget && fDrawTarget->isIssued(fDrawID); } 6307475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 631a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org private: 632a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org GrDrawTarget* fDrawTarget; 633a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org uint32_t fDrawID; // this may wrap, but we're doing direct comparison 634a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org // so that should be okay 635a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org }; 6367475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 637a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org virtual DrawToken getCurrentDrawToken() { return DrawToken(this, 0); } 6387475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 639ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.comprotected: 640471d471dcd7422e5dd9c822c1092b2ba4721dcfebsalomon@google.com 64125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com enum GeometrySrcType { 64225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kNone_GeometrySrcType, //<! src has not been specified 64325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kReserved_GeometrySrcType, //<! src was set using reserve*Space 64425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kArray_GeometrySrcType, //<! src was set using set*SourceToArray 64525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kBuffer_GeometrySrcType //<! src was set using set*SourceToBuffer 64625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 647d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 64825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com struct GeometrySrcState { 64925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com GeometrySrcType fVertexSrc; 65025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com union { 65125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is buffer 65225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com const GrVertexBuffer* fVertexBuffer; 65325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is reserved or array 65425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int fVertexCount; 65525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 656d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 65725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com GeometrySrcType fIndexSrc; 65825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com union { 65925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is buffer 66025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com const GrIndexBuffer* fIndexBuffer; 66125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is reserved or array 66225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int fIndexCount; 66325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 664d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 665b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com size_t fVertexSize; 66625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 667934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com 668934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com int indexCountInCurrentSource() const { 669934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com const GeometrySrcState& src = this->getGeomSrc(); 670934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com switch (src.fIndexSrc) { 671934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kNone_GeometrySrcType: 672934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com return 0; 673934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kReserved_GeometrySrcType: 674934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kArray_GeometrySrcType: 675934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com return src.fIndexCount; 676934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kBuffer_GeometrySrcType: 677934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com return src.fIndexBuffer->sizeInBytes() / sizeof(uint16_t); 678934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com default: 679934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com GrCrash("Unexpected Index Source."); 680934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com return 0; 681934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com } 682934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com } 683a47a48dca5045d71cbc5de343404045209a13e15bsalomon@google.com 684e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // This method is called by copySurface The srcRect is guaranteed to be entirely within the 685e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // src bounds. Likewise, the dst rect implied by dstPoint and srcRect's width and height falls 686e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // entirely within the dst. The default implementation will draw a rect from the src to the 687e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // dst if the src is a texture and the dst is a render target and fail otherwise. 688e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com virtual bool onCopySurface(GrSurface* dst, 689e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com GrSurface* src, 690e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIRect& srcRect, 691e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIPoint& dstPoint); 692e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com 693e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // Called to determine whether an onCopySurface call would succeed or not. This is useful for 694e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // proxy subclasses to test whether the copy would succeed without executing it yet. Derived 695e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // classes must keep this consistent with their implementation of onCopySurface(). The inputs 696e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // are the same as onCopySurface(), i.e. srcRect and dstPoint are clipped to be inside the src 697e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // and dst bounds. 698116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com virtual bool onCanCopySurface(GrSurface* dst, 699116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com GrSurface* src, 700116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIRect& srcRect, 701116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIPoint& dstPoint); 702e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com 7036e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com GrContext* getContext() { return fContext; } 7046e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com const GrContext* getContext() const { return fContext; } 7056e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com 70602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // A subclass may override this function if it wishes to be notified when the clip is changed. 70702ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // The override should call INHERITED::clipWillBeSet(). 70802ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com virtual void clipWillBeSet(const GrClipData* clipData); 70902ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com 71002ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // subclasses must call this in their destructors to ensure all vertex 71102ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // and index sources have been released (including those held by 71202ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // pushGeometrySource()) 71302ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com void releaseGeometry(); 71402ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com 71502ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // accessors for derived classes 71602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com const GeometrySrcState& getGeomSrc() const { return fGeoSrcStateStack.back(); } 717b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com // it is preferable to call this rather than getGeomSrc()->fVertexSize because of the assert. 718b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com size_t getVertexSize() const { 71902ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // the vertex layout is only valid if a vertex source has been specified. 720f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(this->getGeomSrc().fVertexSrc != kNone_GeometrySrcType); 721b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com return this->getGeomSrc().fVertexSize; 722a47a48dca5045d71cbc5de343404045209a13e15bsalomon@google.com } 7235782d712ffc31557d0cb12d5a220cebb783f6895bsalomon@google.com 724bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com // Subclass must initialize this in its constructor. 725c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com SkAutoTUnref<const GrDrawTargetCaps> fCaps; 72602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com 727d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com /** 728d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * Used to communicate draws to subclass's onDraw function. 729d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com */ 73074749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com class DrawInfo { 73174749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com public: 73274749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com DrawInfo(const DrawInfo& di) { (*this) = di; } 733d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com DrawInfo& operator =(const DrawInfo& di); 73474749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 73574749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com GrPrimitiveType primitiveType() const { return fPrimitiveType; } 73674749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int startVertex() const { return fStartVertex; } 73774749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int startIndex() const { return fStartIndex; } 73874749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int vertexCount() const { return fVertexCount; } 73974749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int indexCount() const { return fIndexCount; } 740d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int verticesPerInstance() const { return fVerticesPerInstance; } 741d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int indicesPerInstance() const { return fIndicesPerInstance; } 742d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int instanceCount() const { return fInstanceCount; } 74374749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 74474749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com bool isIndexed() const { return fIndexCount > 0; } 745515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org#ifdef SK_DEBUG 746d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com bool isInstanced() const; // this version is longer because of asserts 747d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com#else 748d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com bool isInstanced() const { return fInstanceCount > 0; } 749d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com#endif 750d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 751d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com // adds or remove instances 752d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void adjustInstanceCount(int instanceOffset); 753d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com // shifts the start vertex 754d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void adjustStartVertex(int vertexOffset); 755d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com // shifts the start index 756d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void adjustStartIndex(int indexOffset); 757d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 758d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void setDevBounds(const SkRect& bounds) { 759d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com fDevBoundsStorage = bounds; 760d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com fDevBounds = &fDevBoundsStorage; 761d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com } 762d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* getDevBounds() const { return fDevBounds; } 76305a2ee052c9ef4c781b7b590b00b3d2da3b3449askia.committer@gmail.com 764bb5c46591c50d05418467cd1c4e927ceb85c2ba9commit-bot@chromium.org bool getDevIBounds(SkIRect* bounds) const { 765bb5c46591c50d05418467cd1c4e927ceb85c2ba9commit-bot@chromium.org if (NULL != fDevBounds) { 766bb5c46591c50d05418467cd1c4e927ceb85c2ba9commit-bot@chromium.org fDevBounds->roundOut(bounds); 767bb5c46591c50d05418467cd1c4e927ceb85c2ba9commit-bot@chromium.org return true; 768bb5c46591c50d05418467cd1c4e927ceb85c2ba9commit-bot@chromium.org } else { 769bb5c46591c50d05418467cd1c4e927ceb85c2ba9commit-bot@chromium.org return false; 770bb5c46591c50d05418467cd1c4e927ceb85c2ba9commit-bot@chromium.org } 771bb5c46591c50d05418467cd1c4e927ceb85c2ba9commit-bot@chromium.org } 77274749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 77326e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com // NULL if no copy of the dst is needed for the draw. 77426e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com const GrDeviceCoordTexture* getDstCopy() const { 77526e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com if (NULL != fDstCopy.texture()) { 77626e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com return &fDstCopy; 77726e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com } else { 77826e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com return NULL; 77926e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com } 78026e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com } 78126e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com 78274749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com private: 783d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com DrawInfo() { fDevBounds = NULL; } 784d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 78574749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com friend class GrDrawTarget; 786d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 78726e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com GrPrimitiveType fPrimitiveType; 78874749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 78926e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fStartVertex; 79026e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fStartIndex; 79126e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fVertexCount; 79226e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fIndexCount; 793d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 79426e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fInstanceCount; 79526e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fVerticesPerInstance; 79626e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fIndicesPerInstance; 797d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 79826e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com SkRect fDevBoundsStorage; 79926e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com SkRect* fDevBounds; 80026e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com 80126e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com GrDeviceCoordTexture fDstCopy; 80274749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com }; 80374749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 80402ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.comprivate: 80502ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // A subclass can optionally overload this function to be notified before 80602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // vertex and index space is reserved. 807b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com virtual void willReserveVertexAndIndexSpace(int vertexCount, int indexCount) {} 80897805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com 80925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // implemented by subclass to allocate space for reserved geom 810a63389843dd18003382d61c2e4610af09ed07d38jvanverth@google.com virtual bool onReserveVertexSpace(size_t vertexSize, int vertexCount, void** vertices) = 0; 81125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual bool onReserveIndexSpace(int indexCount, void** indices) = 0; 81225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // implemented by subclass to handle release of reserved geom space 81325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseReservedVertexSpace() = 0; 81425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseReservedIndexSpace() = 0; 81525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // subclass must consume array contents when set 81602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com virtual void onSetVertexSourceToArray(const void* vertexArray, int vertexCount) = 0; 81702ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com virtual void onSetIndexSourceToArray(const void* indexArray, int indexCount) = 0; 81825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // subclass is notified that geom source will be set away from an array 81925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseVertexArray() = 0; 82025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseIndexArray() = 0; 82102ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // subclass overrides to be notified just before geo src state is pushed/popped. 82225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void geometrySourceWillPush() = 0; 82325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void geometrySourceWillPop(const GeometrySrcState& restoredState) = 0; 82425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // subclass called to perform drawing 82574749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com virtual void onDraw(const DrawInfo&) = 0; 8260406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // Implementation of drawRect. The geometry src and vertex attribs will already 8270406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // be saved before this is called and restored afterwards. A subclass may override 8280406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // this to perform more optimal rect rendering. Its draws should be funneled through 8290406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // one of the public GrDrawTarget draw methods (e.g. drawNonIndexed, 8300406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // drawIndexedInstances, ...). The base class draws a two triangle fan using 8310406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // drawNonIndexed from reserved vertex space. 832fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org virtual void onDrawRect(const SkRect& rect, 8330406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com const SkMatrix* matrix, 834fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org const SkRect* localRect, 8350406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com const SkMatrix* localMatrix); 8365f74cf8c49701f514b69dc6f1a8b5c0ffd78af0asugoi@google.com virtual void onStencilPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fill) = 0; 83764aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com 838e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com // helpers for reserving vertex and index space. 839b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com bool reserveVertexSpace(size_t vertexSize, 840e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com int vertexCount, 841e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com void** vertices); 842e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com bool reserveIndexSpace(int indexCount, void** indices); 843d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 844e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com // called by drawIndexed and drawNonIndexed. Use a negative indexCount to 845e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com // indicate non-indexed drawing. 846e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com bool checkDraw(GrPrimitiveType type, int startVertex, 847e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com int startIndex, int vertexCount, 848e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com int indexCount) const; 84925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // called when setting a new vert/idx source to unref prev vb/ib 85025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void releasePreviousVertexSource(); 85125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void releasePreviousIndexSource(); 852d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 85326e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com // Makes a copy of the dst if it is necessary for the draw. Returns false if a copy is required 85426e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com // but couldn't be made. Otherwise, returns true. 85526e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com bool setupDstReadIfNecessary(DrawInfo* info); 85626e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com 857a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org // Check to see if this set of draw commands has been sent out 858a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org virtual bool isIssued(uint32_t drawID) { return true; } 8597475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 86025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com enum { 86125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kPreallocGeoSrcStateStackCnt = 4, 862ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 86302ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com SkSTArray<kPreallocGeoSrcStateStackCnt, GeometrySrcState, true> fGeoSrcStateStack; 86402ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com const GrClipData* fClip; 86502ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com GrDrawState* fDrawState; 86602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com GrDrawState fDefaultDrawState; 8676e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com // The context owns us, not vice-versa, so this ptr is not ref'ed by DrawTarget. 8686e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com GrContext* fContext; 869fa35e3ddcc9d130ce87c927218bdf27879c38711reed@google.com 870a4de8c257ea0be8ff7081f645249b6afe5c48e7ecommit-bot@chromium.org typedef SkRefCnt INHERITED; 871ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com}; 872ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 873ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com#endif 874