GrDrawTarget.h revision 01c8da1eef36570374f7e8764a38b25bf16ab7a6
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" 122a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org#include "GrContext.h" 139381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#include "GrDrawState.h" 14934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com#include "GrIndexBuffer.h" 152a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org#include "GrTraceMarker.h" 16ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 178d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com#include "SkClipStack.h" 18a4de8c257ea0be8ff7081f645249b6afe5c48e7ecommit-bot@chromium.org#include "SkMatrix.h" 1912b4e27ae1a29460e91a59f38122483e1faec697sugoi@google.com#include "SkPath.h" 209b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org#include "SkStrokeRec.h" 21a2d71482db8b6d752a51c96da74768d7dfc27932robertphillips@google.com#include "SkTArray.h" 22a4de8c257ea0be8ff7081f645249b6afe5c48e7ecommit-bot@chromium.org#include "SkTLazy.h" 23a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org#include "SkTypes.h" 248d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com#include "SkXfermode.h" 2597c88c255cff3dbb8343c5d090526fdbedad6dd6Scroggo 26a2d71482db8b6d752a51c96da74768d7dfc27932robertphillips@google.comclass GrClipData; 27c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.comclass GrDrawTargetCaps; 2864aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.comclass GrPath; 29b85a0aab6905af8b329539b7573a7555b727d5e5cdaltonclass GrPathRange; 30ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.comclass GrVertexBuffer; 3112b4e27ae1a29460e91a59f38122483e1faec697sugoi@google.com 32a4de8c257ea0be8ff7081f645249b6afe5c48e7ecommit-bot@chromium.orgclass GrDrawTarget : public SkRefCnt { 33f66018798099750e639a8fa131fece492a050997bsalomon@google.comprotected: 34bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com class DrawInfo; 35bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com 36bcce8926524827775539874346dd424a9510dbc9bsalomon@google.compublic: 37bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com SK_DECLARE_INST_COUNT(GrDrawTarget) 38bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com 39ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /////////////////////////////////////////////////////////////////////////// 40ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 416e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com // The context may not be fully constructed and should not be used during GrDrawTarget 426e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com // construction. 436e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com GrDrawTarget(GrContext* context); 4425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual ~GrDrawTarget(); 45ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 46ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 4718c9c198f571997463d9a7134dbd88298e592ec2bsalomon@google.com * Gets the capabilities of the draw target. 4818c9c198f571997463d9a7134dbd88298e592ec2bsalomon@google.com */ 49c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com const GrDrawTargetCaps* caps() const { return fCaps.get(); } 5018c9c198f571997463d9a7134dbd88298e592ec2bsalomon@google.com 5118c9c198f571997463d9a7134dbd88298e592ec2bsalomon@google.com /** 52ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Sets the current clip to the region specified by clip. All draws will be 53ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * clipped against this clip if kClip_StateBit is enabled. 54ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 555aaa69e4339e229adfb05e96084a8ec0a590238bbsalomon@google.com * Setting the clip may (or may not) zero out the client's stencil bits. 565aaa69e4339e229adfb05e96084a8ec0a590238bbsalomon@google.com * 57ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param description of the clipping region 58ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 59beb1af78d016d2700c350487a383c6bcfa7e2e20robertphillips@google.com void setClip(const GrClipData* clip); 60ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 61ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 62ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Gets the current clip. 63ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 64ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @return the clip. 65ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 66beb1af78d016d2700c350487a383c6bcfa7e2e20robertphillips@google.com const GrClipData* getClip() const; 67ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 68a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com /** 69a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * Sets the draw state object for the draw target. Note that this does not 70a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * make a copy. The GrDrawTarget will take a reference to passed object. 71a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * Passing NULL will cause the GrDrawTarget to use its own internal draw 72a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * state object rather than an externally provided one. 73a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com */ 74a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com void setDrawState(GrDrawState* drawState); 75a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com 76a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com /** 77a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * Read-only access to the GrDrawTarget's current draw state. 78a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com */ 79a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com const GrDrawState& getDrawState() const { return *fDrawState; } 80a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com 81a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com /** 82a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * Read-write access to the GrDrawTarget's current draw state. Note that 83a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com * this doesn't ref. 84a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com */ 85a5d056ae0b04021dfb44c2c7a3d6a34e060261b8bsalomon@google.com GrDrawState* drawState() { return fDrawState; } 863d0835b6ac0003c18147b6e9ca76a497b92d1d40bsalomon@google.com 873d0835b6ac0003c18147b6e9ca76a497b92d1d40bsalomon@google.com /** 88a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * Color alpha and coverage are two inputs to the drawing pipeline. For some 89a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * blend modes it is safe to fold the coverage into constant or per-vertex 90a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * color alpha value. For other blend modes they must be handled separately. 91a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * Depending on features available in the underlying 3D API this may or may 92a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * not be possible. 93a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com * 94e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * This function considers the current draw state and the draw target's 95e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * capabilities to determine whether coverage can be handled correctly. The 96e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * following assumptions are made: 97e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * 1. The caller intends to somehow specify coverage. This can be 98e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * specified either by enabling a coverage stage on the GrDrawState or 99e79c815bca39fa552983b7a8107219aa5084acdbbsalomon@google.com * via the vertex layout. 1002b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * 2. Other than enabling coverage stages or enabling coverage in the 1012b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * layout, the current configuration of the target's GrDrawState is as 1022b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * it will be at draw time. 103a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com */ 104a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com bool canApplyCoverage() const; 105a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com 106e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org /** When we're using coverage AA but the blend is incompatible (given gpu 107e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org * limitations) we should disable AA. */ 108e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org bool shouldDisableCoverageAAForBlend() { 109e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org // Enable below if we should draw with AA even when it produces 110e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org // incorrect blending. 111e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org // return false; 112e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org return !this->canApplyCoverage(); 113e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org } 114e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org 115a31082685544d0ae4c0b203d7f5ff960640ed8dfbsalomon@google.com /** 116e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * There are three types of "sources" of geometry (vertices and indices) for 117e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * draw calls made on the target. When performing an indexed draw, the 118e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * indices and vertices can use different source types. Once a source is 119934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * specified it can be used for multiple draws. However, the time at which 120934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * the geometry data is no longer editable depends on the source type. 12125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * 12225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Sometimes it is necessary to perform a draw while upstack code has 123e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * already specified geometry that it isn't finished with. So there are push 124e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * and pop methods. This allows the client to push the sources, draw 125e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * something using alternate sources, and then pop to restore the original 126e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * sources. 127e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 128e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * Aside from pushes and pops, a source remains valid until another source 129e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * is set or resetVertexSource / resetIndexSource is called. Drawing from 130e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * a reset source is an error. 131e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 132e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * The three types of sources are: 1331c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 134e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 1. A cpu array (set*SourceToArray). This is useful when the caller 135e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * already provided vertex data in a format compatible with a 136e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * GrVertexLayout. The data in the array is consumed at the time that 137e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * set*SourceToArray is called and subsequent edits to the array will not 138e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * be reflected in draws. 1391c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 14025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * 2. Reserve. This is most useful when the caller has data it must 14125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * transform before drawing and is not long-lived. The caller requests 14225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * that the draw target make room for some amount of vertex and/or index 14325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * data. The target provides ptrs to hold the vertex and/or index data. 14425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * 145d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * The data is writable up until the next drawIndexed, drawNonIndexed, 146e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * drawIndexedInstances, drawRect, copySurface, or pushGeometrySource. At 147e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * this point the data is frozen and the ptrs are no longer valid. 1481c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 149e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * Where the space is allocated and how it is uploaded to the GPU is 150e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * subclass-dependent. 151e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * 1521c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 3. Vertex and Index Buffers. This is most useful for geometry that will 153e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * is long-lived. When the data in the buffer is consumed depends on the 154d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * GrDrawTarget subclass. For deferred subclasses the caller has to 155e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * guarantee that the data is still available in the buffers at playback. 156e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * (TODO: Make this more automatic as we have done for read/write pixels) 157b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * 158b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * The size of each vertex is determined by querying the current GrDrawState. 1591c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com */ 1601c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com 1611c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com /** 162e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * Reserves space for vertices and/or indices. Zero can be specifed as 163e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * either the vertex or index count if the caller desires to only reserve 164d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * space for only indices or only vertices. If zero is specifed for 165e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * vertexCount then the vertex source will be unmodified and likewise for 166e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * indexCount. 167ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 168e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * If the function returns true then the reserve suceeded and the vertices 169e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * and indices pointers will point to the space created. 170ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 171e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * If the target cannot make space for the request then this function will 172e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * return false. If vertexCount was non-zero then upon failure the vertex 173e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * source is reset and likewise for indexCount. 174ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 175e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * The pointers to the space allocated for vertices and indices remain valid 176e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * until a drawIndexed, drawNonIndexed, drawIndexedInstances, drawRect, 177e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * copySurface, or push/popGeomtrySource is called. At that point logically a 178e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * snapshot of the data is made and the pointers are invalid. 1791c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * 180e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * @param vertexCount the number of vertices to reserve space for. Can be 181b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * 0. Vertex size is queried from the current GrDrawState. 18225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * @param indexCount the number of indices to reserve space for. Can be 0. 183e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com * @param vertices will point to reserved vertex space if vertexCount is 184d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * non-zero. Illegal to pass NULL if vertexCount > 0. 18525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * @param indices will point to reserved index space if indexCount is 18625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * non-zero. Illegal to pass NULL if indexCount > 0. 18725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 188b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com bool reserveVertexAndIndexSpace(int vertexCount, 18997805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com int indexCount, 19097805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com void** vertices, 19197805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com void** indices); 19225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com 193ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 194ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Provides hints to caller about the number of vertices and indices 195ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * that can be allocated cheaply. This can be useful if caller is reserving 196ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * space but doesn't know exactly how much geometry is needed. 197ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 198ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Also may hint whether the draw target should be flushed first. This is 199ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * useful for deferred targets. 200ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 201ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param vertexCount in: hint about how many vertices the caller would 202b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * like to allocate. Vertex size is queried from the 203b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * current GrDrawState. 204ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * out: a hint about the number of vertices that can be 205ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * allocated cheaply. Negative means no hint. 206ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Ignored if NULL. 207ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param indexCount in: hint about how many indices the caller would 208ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * like to allocate. 209ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * out: a hint about the number of indices that can be 210ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * allocated cheaply. Negative means no hint. 211ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Ignored if NULL. 212ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 213ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @return true if target should be flushed based on the input values. 214ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 215b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com virtual bool geometryHints(int* vertexCount, 2161c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com int* indexCount) const; 217ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 218ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 2191c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * Sets source of vertex data for the next draw. Array must contain 2201c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * the vertex data when this is called. 221ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 222b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * @param vertexArray cpu array containing vertex data. 223ae683921ffda9108147a29da7319c7eee4dc9245skia.committer@gmail.com * @param vertexCount the number of vertices in the array. Vertex size is 224b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * queried from the current GrDrawState. 225ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 226b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com void setVertexSourceToArray(const void* vertexArray, int vertexCount); 227ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 228ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 2291c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * Sets source of index data for the next indexed draw. Array must contain 2301c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * the indices when this is called. 231ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 232b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * @param indexArray cpu array containing index data. 2331c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com * @param indexCount the number of indices in the array. 234ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 2351c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com void setIndexSourceToArray(const void* indexArray, int indexCount); 236ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 237ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 238ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Sets source of vertex data for the next draw. Data does not have to be 239934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * in the buffer until drawIndexed, drawNonIndexed, or drawIndexedInstances. 240ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 241ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param buffer vertex buffer containing vertex data. Must be 242ae683921ffda9108147a29da7319c7eee4dc9245skia.committer@gmail.com * unlocked before draw call. Vertex size is queried 243b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com * from current GrDrawState. 244ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 245b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com void setVertexSourceToBuffer(const GrVertexBuffer* buffer); 246ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 247ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 248ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Sets source of index data for the next indexed draw. Data does not have 249934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * to be in the buffer until drawIndexed. 250ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 251ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param buffer index buffer containing indices. Must be unlocked 252ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * before indexed draw call. 253ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 254ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com void setIndexSourceToBuffer(const GrIndexBuffer* buffer); 255d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 25625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 25725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Resets vertex source. Drawing from reset vertices is illegal. Set vertex 25825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * source to reserved, array, or buffer before next draw. May be able to free 25925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * up temporary storage allocated by setVertexSourceToArray or 26025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * reserveVertexSpace. 26125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 26225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void resetVertexSource(); 263d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 26425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 26525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Resets index source. Indexed Drawing from reset indices is illegal. Set 26625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * index source to reserved, array, or buffer before next indexed draw. May 26725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * be able to free up temporary storage allocated by setIndexSourceToArray 26825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * or reserveIndexSpace. 26925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 27097805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com void resetIndexSource(); 271d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 27297805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com /** 27397805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com * Query to find out if the vertex or index source is reserved. 27497805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com */ 27597805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com bool hasReservedVerticesOrIndices() const { 27673d98aace4f74acc39d8de33484c8aec8e917739bsalomon@google.com return kReserved_GeometrySrcType == this->getGeomSrc().fVertexSrc || 27797805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com kReserved_GeometrySrcType == this->getGeomSrc().fIndexSrc; 27897805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com } 279ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 280ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 28125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Pushes and resets the vertex/index sources. Any reserved vertex / index 28225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * data is finalized (i.e. cannot be updated after the matching pop but can 28325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * be drawn from). Must be balanced by a pop. 28425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 28525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void pushGeometrySource(); 28625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com 28725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 28825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com * Pops the vertex / index sources from the matching push. 28925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com */ 29025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void popGeometrySource(); 29164aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com 29225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com /** 293ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Draws indexed geometry using the current state and current vertex / index 294ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * sources. 295ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 296ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param type The type of primitives to draw. 297ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param startVertex the vertex in the vertex array/buffer corresponding 298ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * to index 0 299ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param startIndex first index to read from index src. 300ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param vertexCount one greater than the max index. 301ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param indexCount the number of index elements to read. The index count 302ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * is effectively trimmed to the last completely 303ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * specified primitive. 304d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * @param devBounds optional bounds hint. This is a promise from the caller, 305d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * not a request for clipping. 306ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 30725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void drawIndexed(GrPrimitiveType type, 30825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int startVertex, 30925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int startIndex, 31025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int vertexCount, 311d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int indexCount, 312d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* devBounds = NULL); 313ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 314ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com /** 315ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * Draws non-indexed geometry using the current state and current vertex 316ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * sources. 317ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * 318ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param type The type of primitives to draw. 319ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param startVertex the vertex in the vertex array/buffer corresponding 320ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * to index 0 321ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com * @param vertexCount one greater than the max index. 322d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * @param devBounds optional bounds hint. This is a promise from the caller, 323d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * not a request for clipping. 324ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com */ 32525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void drawNonIndexed(GrPrimitiveType type, 32625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int startVertex, 327d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int vertexCount, 328d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* devBounds = NULL); 329ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 33086afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com /** 33164aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com * Draws path into the stencil buffer. The fill must be either even/odd or 33264aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com * winding (not inverse or hairline). It will respect the HW antialias flag 33364aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com * on the draw state (if possible in the 3D API). 33464aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com */ 33532184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org void stencilPath(const GrPath*, SkPath::FillType fill); 33664aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com 33764aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com /** 33832184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org * Draws a path. Fill must not be a hairline. It will respect the HW 339c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org * antialias flag on the draw state (if possible in the 3D API). 340c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org */ 34132184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org void drawPath(const GrPath*, SkPath::FillType fill); 342c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org 343c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org /** 3449b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org * Draws many paths. It will respect the HW 3459b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org * antialias flag on the draw state (if possible in the 3D API). 3469b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org * 347b85a0aab6905af8b329539b7573a7555b727d5e5cdalton * @param pathRange Source of paths to draw from 348b85a0aab6905af8b329539b7573a7555b727d5e5cdalton * @param indices Array of indices into the the pathRange 349b85a0aab6905af8b329539b7573a7555b727d5e5cdalton * @param count Number of paths to draw (length of indices array) 350b85a0aab6905af8b329539b7573a7555b727d5e5cdalton * @param transforms Array of individual transforms, one for each path 351b85a0aab6905af8b329539b7573a7555b727d5e5cdalton * @param transformsType Type of transformations in the array. Array contains 352b85a0aab6905af8b329539b7573a7555b727d5e5cdalton PathTransformSize(transformsType) × count elements 353b85a0aab6905af8b329539b7573a7555b727d5e5cdalton * @param fill Fill type for drawing all the paths 354b85a0aab6905af8b329539b7573a7555b727d5e5cdalton */ 355b85a0aab6905af8b329539b7573a7555b727d5e5cdalton enum PathTransformType { 356b85a0aab6905af8b329539b7573a7555b727d5e5cdalton kNone_PathTransformType, //!< [] 357b85a0aab6905af8b329539b7573a7555b727d5e5cdalton kTranslateX_PathTransformType, //!< [kMTransX] 358b85a0aab6905af8b329539b7573a7555b727d5e5cdalton kTranslateY_PathTransformType, //!< [kMTransY] 359b85a0aab6905af8b329539b7573a7555b727d5e5cdalton kTranslate_PathTransformType, //!< [kMTransX, kMTransY] 360b85a0aab6905af8b329539b7573a7555b727d5e5cdalton kAffine_PathTransformType, //!< [kMScaleX, kMSkewX, kMTransX, kMSkewY, kMScaleY, kMTransY] 361b85a0aab6905af8b329539b7573a7555b727d5e5cdalton 362b85a0aab6905af8b329539b7573a7555b727d5e5cdalton kLast_PathTransformType = kAffine_PathTransformType 363b85a0aab6905af8b329539b7573a7555b727d5e5cdalton }; 364b85a0aab6905af8b329539b7573a7555b727d5e5cdalton void drawPaths(const GrPathRange* pathRange, 365b85a0aab6905af8b329539b7573a7555b727d5e5cdalton const uint32_t indices[], int count, 366b85a0aab6905af8b329539b7573a7555b727d5e5cdalton const float transforms[], PathTransformType transformsType, 367b85a0aab6905af8b329539b7573a7555b727d5e5cdalton SkPath::FillType fill); 368b85a0aab6905af8b329539b7573a7555b727d5e5cdalton 369b85a0aab6905af8b329539b7573a7555b727d5e5cdalton static inline int PathTransformSize(PathTransformType type) { 370b85a0aab6905af8b329539b7573a7555b727d5e5cdalton switch (type) { 371b85a0aab6905af8b329539b7573a7555b727d5e5cdalton case kNone_PathTransformType: 372b85a0aab6905af8b329539b7573a7555b727d5e5cdalton return 0; 373b85a0aab6905af8b329539b7573a7555b727d5e5cdalton case kTranslateX_PathTransformType: 374b85a0aab6905af8b329539b7573a7555b727d5e5cdalton case kTranslateY_PathTransformType: 375b85a0aab6905af8b329539b7573a7555b727d5e5cdalton return 1; 376b85a0aab6905af8b329539b7573a7555b727d5e5cdalton case kTranslate_PathTransformType: 377b85a0aab6905af8b329539b7573a7555b727d5e5cdalton return 2; 378b85a0aab6905af8b329539b7573a7555b727d5e5cdalton case kAffine_PathTransformType: 379b85a0aab6905af8b329539b7573a7555b727d5e5cdalton return 6; 380b85a0aab6905af8b329539b7573a7555b727d5e5cdalton 381b85a0aab6905af8b329539b7573a7555b727d5e5cdalton default: 382b85a0aab6905af8b329539b7573a7555b727d5e5cdalton SkFAIL("Unknown path transform type"); 383b85a0aab6905af8b329539b7573a7555b727d5e5cdalton return 0; 384b85a0aab6905af8b329539b7573a7555b727d5e5cdalton } 385b85a0aab6905af8b329539b7573a7555b727d5e5cdalton } 3869b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org 3879b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org /** 3880406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * Helper function for drawing rects. It performs a geometry src push and pop 3890406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * and thus will finalize any reserved geometry. 390044679ef8c08e1f01afadf5bc08251fe8597df81skia.committer@gmail.com * 391c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param rect the rect to draw 392c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param localRect optional rect that specifies local coords to map onto 393c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * rect. If NULL then rect serves as the local coords. 394c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * @param localMatrix optional matrix applied to localRect. If 395044679ef8c08e1f01afadf5bc08251fe8597df81skia.committer@gmail.com * srcRect is non-NULL and srcMatrix is non-NULL 396044679ef8c08e1f01afadf5bc08251fe8597df81skia.committer@gmail.com * then srcRect will be transformed by srcMatrix. 3973976825a21532e254311b90b4a9046e25717e335jvanverth@google.com * srcMatrix can be NULL when no srcMatrix is desired. 39886afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com */ 399fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org void drawRect(const SkRect& rect, 400fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org const SkRect* localRect, 4010406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com const SkMatrix* localMatrix) { 4020406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com AutoGeometryPush agp(this); 40301c8da1eef36570374f7e8764a38b25bf16ab7a6bsalomon this->onDrawRect(rect, localRect, localMatrix); 4040406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com } 4053976825a21532e254311b90b4a9046e25717e335jvanverth@google.com 406cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com /** 407c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * Helper for drawRect when the caller doesn't need separate local rects or matrices. 408cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com */ 40901c8da1eef36570374f7e8764a38b25bf16ab7a6bsalomon void drawSimpleRect(const SkRect& rect) { 41001c8da1eef36570374f7e8764a38b25bf16ab7a6bsalomon this->drawRect(rect, NULL, NULL); 411cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com } 41201c8da1eef36570374f7e8764a38b25bf16ab7a6bsalomon void drawSimpleRect(const SkIRect& irect) { 4134469938e92d779dff05e745559e67907bbf21e78reed@google.com SkRect rect = SkRect::Make(irect); 41401c8da1eef36570374f7e8764a38b25bf16ab7a6bsalomon this->drawRect(rect, NULL, NULL); 415cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com } 41686afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com 41786afc2ae27fec84c01eb0e81a32766bdaf67dca8bsalomon@google.com /** 418934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * This call is used to draw multiple instances of some geometry with a 419934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * given number of vertices (V) and indices (I) per-instance. The indices in 420934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * the index source must have the form i[k+I] == i[k] + V. Also, all indices 421934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * i[kI] ... i[(k+1)I-1] must be elements of the range kV ... (k+1)V-1. As a 422934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * concrete example, the following index buffer for drawing a series of 423934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * quads each as two triangles each satisfies these conditions with V=4 and 424934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * I=6: 425934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * (0,1,2,0,2,3, 4,5,6,4,6,7, 8,9,10,8,10,11, ...) 426934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * 427934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * The call assumes that the pattern of indices fills the entire index 428934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * source. The size of the index buffer limits the number of instances that 429934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * can be drawn by the GPU in a single draw. However, the caller may specify 430934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * any (positive) number for instanceCount and if necessary multiple GPU 431d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * draws will be issued. Moreover, when drawIndexedInstances is called 432934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * multiple times it may be possible for GrDrawTarget to group them into a 433934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * single GPU draw. 434934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * 435934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param type the type of primitives to draw 436934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param instanceCount the number of instances to draw. Each instance 437934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * consists of verticesPerInstance vertices indexed by 438934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * indicesPerInstance indices drawn as the primitive 439934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * type specified by type. 440934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param verticesPerInstance The number of vertices in each instance (V 441934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * in the above description). 442934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * @param indicesPerInstance The number of indices in each instance (I 443934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com * in the above description). 444d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * @param devBounds optional bounds hint. This is a promise from the caller, 445d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * not a request for clipping. 446934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com */ 447d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void drawIndexedInstances(GrPrimitiveType type, 448d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int instanceCount, 449d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int verticesPerInstance, 450d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int indicesPerInstance, 451d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* devBounds = NULL); 452934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com 453934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com /** 454d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * Clear the current render target if one isn't passed in. Ignores the 455d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * clip and all other draw state (blend mode, stages, etc). Clears the 45656ce48ade325f6f49acb0da31d6252806e4ed7efrobertphillips@google.com * whole thing if rect is NULL, otherwise just the rect. If canIgnoreRect 45756ce48ade325f6f49acb0da31d6252806e4ed7efrobertphillips@google.com * is set then the entire render target can be optionally cleared. 4580b335c1ac100aeacf79a4c98a052286fd46661e7bsalomon@google.com */ 459fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org virtual void clear(const SkIRect* rect, 460c82a8b7aa4ec19fba508c394920a9e88d3e5bd12robertphillips@google.com GrColor color, 46156ce48ade325f6f49acb0da31d6252806e4ed7efrobertphillips@google.com bool canIgnoreRect, 462c82a8b7aa4ec19fba508c394920a9e88d3e5bd12robertphillips@google.com GrRenderTarget* renderTarget = NULL) = 0; 463a9493a3c78f6eb82635ece960b4f16918b885428skia.committer@gmail.com 464e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com /** 46528361fad1054d59ed4e6a320c7a8b8782a1487c7commit-bot@chromium.org * Discards the contents render target. NULL indicates that the current render target should 46628361fad1054d59ed4e6a320c7a8b8782a1487c7commit-bot@chromium.org * be discarded. 46728361fad1054d59ed4e6a320c7a8b8782a1487c7commit-bot@chromium.org **/ 46828361fad1054d59ed4e6a320c7a8b8782a1487c7commit-bot@chromium.org virtual void discard(GrRenderTarget* = NULL) = 0; 46928361fad1054d59ed4e6a320c7a8b8782a1487c7commit-bot@chromium.org 47028361fad1054d59ed4e6a320c7a8b8782a1487c7commit-bot@chromium.org /** 4712a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org * Called at start and end of gpu trace marking 4722a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org * GR_CREATE_GPU_TRACE_MARKER(marker_str, target) will automatically call these at the start 4732a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org * and end of a code block respectively 474a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org */ 4753eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel void addGpuTraceMarker(const GrGpuTraceMarker* marker); 4763eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel void removeGpuTraceMarker(const GrGpuTraceMarker* marker); 4773eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel 4783eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel /** 4793eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel * Takes the current active set of markers and stores them for later use. Any current marker 4803eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel * in the active set is removed from the active set and the targets remove function is called. 4813eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel * These functions do not work as a stack so you cannot call save a second time before calling 4823eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel * restore. Also, it is assumed that when restore is called the current active set of markers 4833eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel * is empty. When the stored markers are added back into the active set, the targets add marker 4843eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel * is called. 4853eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel */ 4863eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel void saveActiveTraceMarkers(); 4873eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel void restoreActiveTraceMarkers(); 488a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org 489a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org /** 490e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * Copies a pixel rectangle from one surface to another. This call may finalize 491e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * reserved vertex/index data (as though a draw call was made). The src pixels 492e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * copied are specified by srcRect. They are copied to a rect of the same 493e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * size in dst with top left at dstPoint. If the src rect is clipped by the 494e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * src bounds then pixel values in the dst rect corresponding to area clipped 495e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * by the src rect are not overwritten. This method can fail and return false 496e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * depending on the type of surface, configs, etc, and the backend-specific 497e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * limitations. If rect is clipped out entirely by the src or dst bounds then 498e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com * true is returned since there is no actual copy necessary to succeed. 499e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com */ 500e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com bool copySurface(GrSurface* dst, 501e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com GrSurface* src, 502e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIRect& srcRect, 503e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIPoint& dstPoint); 504116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com /** 505116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com * Function that determines whether a copySurface call would succeed without 506116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com * performing the copy. 507116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com */ 508116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com bool canCopySurface(GrSurface* dst, 509116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com GrSurface* src, 510116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIRect& srcRect, 511116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIPoint& dstPoint); 5120b335c1ac100aeacf79a4c98a052286fd46661e7bsalomon@google.com 513ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com /** 514eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com * This is can be called before allocating a texture to be a dst for copySurface. It will 515eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com * populate the origin, config, and flags fields of the desc such that copySurface is more 516eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com * likely to succeed and be efficient. 517eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com */ 518eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com virtual void initCopySurfaceDstDesc(const GrSurface* src, GrTextureDesc* desc); 519eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com 520eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com 521eb85117c05471e1a55ce387cbc38279f857a4584bsalomon@google.com /** 522ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com * Release any resources that are cached but not currently in use. This 523ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com * is intended to give an application some recourse when resources are low. 524ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com */ 525ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com virtual void purgeResources() {}; 526ff17584e1c15f68ccc296be517e8a6776a9ddabdrobertphillips@google.com 527d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com /** 528d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * For subclass internal use to invoke a call to onDraw(). See DrawInfo below. 529d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com */ 530d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void executeDraw(const DrawInfo& info) { this->onDraw(info); } 531d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 532c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org /** 53332184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org * For subclass internal use to invoke a call to onDrawPath(). 534c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org */ 53532184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org void executeDrawPath(const GrPath* path, SkPath::FillType fill, 53632184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org const GrDeviceCoordTexture* dstCopy) { 53732184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org this->onDrawPath(path, fill, dstCopy); 538c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org } 539c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org 5409b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org /** 5419b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org * For subclass internal use to invoke a call to onDrawPaths(). 5429b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org */ 543b85a0aab6905af8b329539b7573a7555b727d5e5cdalton void executeDrawPaths(const GrPathRange* pathRange, 544b85a0aab6905af8b329539b7573a7555b727d5e5cdalton const uint32_t indices[], int count, 545b85a0aab6905af8b329539b7573a7555b727d5e5cdalton const float transforms[], PathTransformType transformsType, 546b85a0aab6905af8b329539b7573a7555b727d5e5cdalton SkPath::FillType fill, 5479b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org const GrDeviceCoordTexture* dstCopy) { 548b85a0aab6905af8b329539b7573a7555b727d5e5cdalton this->onDrawPaths(pathRange, indices, count, transforms, transformsType, fill, dstCopy); 5499b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org } 550db35dab49e0e6bf16ccad5052bf6e6826daad27dskia.committer@gmail.com 5512a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org inline bool isGpuTracingEnabled() const { 5522a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org return this->getContext()->isGpuTracingEnabled(); 5532a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org } 5549b62aa156bcf1db6f11af9302bf8bb8ef2567142commit-bot@chromium.org 55525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 556ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 557873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 558873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * See AutoStateRestore below. 559873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 560873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com enum ASRInit { 561873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com kPreserve_ASRInit, 562873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com kReset_ASRInit 563873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com }; 564873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com 565873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 566873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Saves off the current state and restores it in the destructor. It will 567873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * install a new GrDrawState object on the target (setDrawState) and restore 568873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * the previous one in the destructor. The caller should call drawState() to 569873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * get the new draw state after the ASR is installed. 570873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * 571873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * GrDrawState* state = target->drawState(); 572873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * AutoStateRestore asr(target, GrDrawTarget::kReset_ASRInit). 573873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * state->setRenderTarget(rt); // state refers to the GrDrawState set on 574873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // target before asr was initialized. 575873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // Therefore, rt is set on the GrDrawState 576873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // that will be restored after asr's 577873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * // destructor rather than target's current 578d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * // GrDrawState. 579873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 580a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoStateRestore : public ::SkNoncopyable { 581ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com public: 582873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 583873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Default ASR will have no effect unless set() is subsequently called. 584873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 58506afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com AutoStateRestore(); 586873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com 587873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com /** 588873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Saves the state on target. The state will be restored when the ASR 589873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * is destroyed. If this constructor is used do not call set(). 590873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * 591873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * @param init Should the newly installed GrDrawState be a copy of the 592873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * previous state or a default-initialized GrDrawState. 593137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * @param viewMatrix Optional view matrix. If init = kPreserve then the draw state's 594137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * matrix will be preconcat'ed with the param. All stages will be 595137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com updated to compensate for the matrix change. If init == kReset 596137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com then the draw state's matrix will be this matrix. 597873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com */ 598137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com AutoStateRestore(GrDrawTarget* target, ASRInit init, const SkMatrix* viewMatrix = NULL); 599873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com 600ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com ~AutoStateRestore(); 601ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 60206afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com /** 603873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * Saves the state on target. The state will be restored when the ASR 604873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * is destroyed. This should only be called once per ASR object and only 605873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * when the default constructor was used. For nested saves use multiple 606873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * ASR objects. 607873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * 608873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * @param init Should the newly installed GrDrawState be a copy of the 609873ea0c93f202600ec2591bc1e2e5d7a1e05f59dbsalomon@google.com * previous state or a default-initialized GrDrawState. 610137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * @param viewMatrix Optional view matrix. If init = kPreserve then the draw state's 611137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * matrix will be preconcat'ed with the param. All stages will be 612137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com updated to compensate for the matrix change. If init == kReset 613137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com then the draw state's matrix will be this matrix. 61406afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com */ 615137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com void set(GrDrawTarget* target, ASRInit init, const SkMatrix* viewMatrix = NULL); 616137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com 617137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com /** 618137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * Like set() but makes the view matrix identity. When init is kReset it is as though 619137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * NULL was passed to set's viewMatrix param. When init is kPreserve it is as though 620137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * the inverse view matrix was passed. If kPreserve is passed and the draw state's matrix 621137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com * is not invertible then this may fail. 622137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com */ 623137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com bool setIdentity(GrDrawTarget* target, ASRInit init); 62406afe7b5a1ef03bfc6494c51ab2a1f7a386de5c2bsalomon@google.com 625ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com private: 626137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com GrDrawTarget* fDrawTarget; 627137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com SkTLazy<GrDrawState> fTempState; 628137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com GrDrawState* fSavedState; 629ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 630ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 63125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 6321c13c9668a889e56a0c85b51b9f28139c25b76ffbsalomon@google.com 633a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoReleaseGeometry : public ::SkNoncopyable { 634ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com public: 635ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com AutoReleaseGeometry(GrDrawTarget* target, 63625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int vertexCount, 63725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int indexCount); 63825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com AutoReleaseGeometry(); 63925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com ~AutoReleaseGeometry(); 6405782d712ffc31557d0cb12d5a220cebb783f6895bsalomon@google.com bool set(GrDrawTarget* target, 64125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int vertexCount, 64225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int indexCount); 643a47a48dca5045d71cbc5de343404045209a13e15bsalomon@google.com bool succeeded() const { return NULL != fTarget; } 644f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org void* vertices() const { SkASSERT(this->succeeded()); return fVertices; } 645f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org void* indices() const { SkASSERT(this->succeeded()); return fIndices; } 646972f9cd7a063d0544f8c919fd12b9a3adbd12b24commit-bot@chromium.org SkPoint* positions() const { 647972f9cd7a063d0544f8c919fd12b9a3adbd12b24commit-bot@chromium.org return static_cast<SkPoint*>(this->vertices()); 648ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com } 649ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 650ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com private: 65125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void reset(); 652d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 653ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com GrDrawTarget* fTarget; 654ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com void* fVertices; 655ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com void* fIndices; 656ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 657ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 65825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 659ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 660a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoClipRestore : public ::SkNoncopyable { 661ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com public: 662ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com AutoClipRestore(GrDrawTarget* target) { 663ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com fTarget = target; 664ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com fClip = fTarget->getClip(); 665ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com } 666ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 6678d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com AutoClipRestore(GrDrawTarget* target, const SkIRect& newClip); 6688d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com 669ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com ~AutoClipRestore() { 670ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com fTarget->setClip(fClip); 671ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com } 672ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com private: 6738d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com GrDrawTarget* fTarget; 6748d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com const GrClipData* fClip; 6758d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com SkTLazy<SkClipStack> fStack; 6768d67c0711b52226db59158a0cfce09f35badd96absalomon@google.com GrClipData fReplacementClip; 677ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 678d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 67925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com //////////////////////////////////////////////////////////////////////////// 680d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 6810406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com /** 6820406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * Saves the geometry src state at construction and restores in the destructor. It also saves 6830406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * and then restores the vertex attrib state. 6840406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com */ 685a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoGeometryPush : public ::SkNoncopyable { 6860406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com public: 6870406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com AutoGeometryPush(GrDrawTarget* target) 6880406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com : fAttribRestore(target->drawState()) { 689f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(NULL != target); 6900406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com fTarget = target; 6910406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com target->pushGeometrySource(); 6920406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com } 6930406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 6940406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com ~AutoGeometryPush() { fTarget->popGeometrySource(); } 6950406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 6960406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com private: 6970406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com GrDrawTarget* fTarget; 6980406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com GrDrawState::AutoVertexAttribRestore fAttribRestore; 6990406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com }; 7000406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 7010406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com /** 7020406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * Combination of AutoGeometryPush and AutoStateRestore. The vertex attribs will be in default 7030406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com * state regardless of ASRInit value. 7040406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com */ 705a0b40280a49a8a43af7929ead3b3489951c58501commit-bot@chromium.org class AutoGeometryAndStatePush : public ::SkNoncopyable { 70625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com public: 707137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com AutoGeometryAndStatePush(GrDrawTarget* target, 708137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com ASRInit init, 709137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com const SkMatrix* viewMatrix = NULL) 710137f1347abaf0bb6a945e91c2f6cb49f0ee69bc3bsalomon@google.com : fState(target, init, viewMatrix) { 711f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(NULL != target); 71225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com fTarget = target; 71325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com target->pushGeometrySource(); 7140406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com if (kPreserve_ASRInit == init) { 7150406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com target->drawState()->setDefaultVertexAttribs(); 7160406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com } 71725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com } 7180406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 7190406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com ~AutoGeometryAndStatePush() { fTarget->popGeometrySource(); } 7200406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com 72125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com private: 722b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com AutoStateRestore fState; 7230406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com GrDrawTarget* fTarget; 72425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 725ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 726a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org /////////////////////////////////////////////////////////////////////////// 727a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org // Draw execution tracking (for font atlases and other resources) 728a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org class DrawToken { 729a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org public: 730a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org DrawToken(GrDrawTarget* drawTarget, uint32_t drawID) : 731a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org fDrawTarget(drawTarget), fDrawID(drawID) {} 7327475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 733a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org bool isIssued() { return NULL != fDrawTarget && fDrawTarget->isIssued(fDrawID); } 7347475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 735a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org private: 736a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org GrDrawTarget* fDrawTarget; 737a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org uint32_t fDrawID; // this may wrap, but we're doing direct comparison 738a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org // so that should be okay 739a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org }; 7407475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 741a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org virtual DrawToken getCurrentDrawToken() { return DrawToken(this, 0); } 7427475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 743ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.comprotected: 744471d471dcd7422e5dd9c822c1092b2ba4721dcfebsalomon@google.com 74525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com enum GeometrySrcType { 74625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kNone_GeometrySrcType, //<! src has not been specified 74725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kReserved_GeometrySrcType, //<! src was set using reserve*Space 74825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kArray_GeometrySrcType, //<! src was set using set*SourceToArray 74925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kBuffer_GeometrySrcType //<! src was set using set*SourceToBuffer 75025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 751d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 75225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com struct GeometrySrcState { 75325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com GeometrySrcType fVertexSrc; 75425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com union { 75525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is buffer 75625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com const GrVertexBuffer* fVertexBuffer; 75725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is reserved or array 75825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int fVertexCount; 75925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 760d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 76125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com GeometrySrcType fIndexSrc; 76225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com union { 76325fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is buffer 76425fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com const GrIndexBuffer* fIndexBuffer; 76525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // valid if src type is reserved or array 76625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com int fIndexCount; 76725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 768d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 769b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com size_t fVertexSize; 77025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com }; 771934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com 772934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com int indexCountInCurrentSource() const { 773934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com const GeometrySrcState& src = this->getGeomSrc(); 774934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com switch (src.fIndexSrc) { 775934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kNone_GeometrySrcType: 776934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com return 0; 777934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kReserved_GeometrySrcType: 778934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kArray_GeometrySrcType: 779934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com return src.fIndexCount; 780934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com case kBuffer_GeometrySrcType: 781089a780c3355129eefc942246534bc1f126b8ccbcommit-bot@chromium.org return static_cast<int>(src.fIndexBuffer->gpuMemorySize() / sizeof(uint16_t)); 782934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com default: 78388cb22b6b4816c7a9ca6c5b795965b4606f9eb7bcommit-bot@chromium.org SkFAIL("Unexpected Index Source."); 784934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com return 0; 785934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com } 786934c570297c1b1f99cb4ca8d012d468a7eddf73fbsalomon@google.com } 787a47a48dca5045d71cbc5de343404045209a13e15bsalomon@google.com 788e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // This method is called by copySurface The srcRect is guaranteed to be entirely within the 789e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // src bounds. Likewise, the dst rect implied by dstPoint and srcRect's width and height falls 790e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // entirely within the dst. The default implementation will draw a rect from the src to the 791e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // dst if the src is a texture and the dst is a render target and fail otherwise. 792e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com virtual bool onCopySurface(GrSurface* dst, 793e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com GrSurface* src, 794e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIRect& srcRect, 795e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com const SkIPoint& dstPoint); 796e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com 797e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // Called to determine whether an onCopySurface call would succeed or not. This is useful for 798e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // proxy subclasses to test whether the copy would succeed without executing it yet. Derived 799e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // classes must keep this consistent with their implementation of onCopySurface(). The inputs 800e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // are the same as onCopySurface(), i.e. srcRect and dstPoint are clipped to be inside the src 801e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com // and dst bounds. 802116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com virtual bool onCanCopySurface(GrSurface* dst, 803116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com GrSurface* src, 804116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIRect& srcRect, 805116ad84d3126b0db22b2312ca59ed70e5c56f6fcbsalomon@google.com const SkIPoint& dstPoint); 806e4617bf6d45cdde07f89e341ebf5c485916bf0b2bsalomon@google.com 8076e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com GrContext* getContext() { return fContext; } 8086e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com const GrContext* getContext() const { return fContext; } 8096e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com 81002ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // A subclass may override this function if it wishes to be notified when the clip is changed. 81102ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // The override should call INHERITED::clipWillBeSet(). 81202ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com virtual void clipWillBeSet(const GrClipData* clipData); 81302ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com 81402ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // subclasses must call this in their destructors to ensure all vertex 81502ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // and index sources have been released (including those held by 81602ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // pushGeometrySource()) 81702ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com void releaseGeometry(); 81802ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com 81902ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // accessors for derived classes 82002ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com const GeometrySrcState& getGeomSrc() const { return fGeoSrcStateStack.back(); } 821b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com // it is preferable to call this rather than getGeomSrc()->fVertexSize because of the assert. 822b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com size_t getVertexSize() const { 82302ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // the vertex layout is only valid if a vertex source has been specified. 824f6de475e5cbd143f348ff7738919e397b7fe7f57tfarina@chromium.org SkASSERT(this->getGeomSrc().fVertexSrc != kNone_GeometrySrcType); 825b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com return this->getGeomSrc().fVertexSize; 826a47a48dca5045d71cbc5de343404045209a13e15bsalomon@google.com } 8275782d712ffc31557d0cb12d5a220cebb783f6895bsalomon@google.com 828bcce8926524827775539874346dd424a9510dbc9bsalomon@google.com // Subclass must initialize this in its constructor. 829c26d94fd7dc0b00cd6d0e42d28285f4a38aff021bsalomon@google.com SkAutoTUnref<const GrDrawTargetCaps> fCaps; 83002ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com 8312a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org const GrTraceMarkerSet& getActiveTraceMarkers() { return fActiveTraceMarkers; } 8322a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org 833d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com /** 834d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com * Used to communicate draws to subclass's onDraw function. 835d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com */ 83674749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com class DrawInfo { 83774749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com public: 83874749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com DrawInfo(const DrawInfo& di) { (*this) = di; } 839d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com DrawInfo& operator =(const DrawInfo& di); 84074749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 84174749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com GrPrimitiveType primitiveType() const { return fPrimitiveType; } 84274749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int startVertex() const { return fStartVertex; } 84374749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int startIndex() const { return fStartIndex; } 84474749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int vertexCount() const { return fVertexCount; } 84574749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com int indexCount() const { return fIndexCount; } 846d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int verticesPerInstance() const { return fVerticesPerInstance; } 847d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int indicesPerInstance() const { return fIndicesPerInstance; } 848d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com int instanceCount() const { return fInstanceCount; } 84974749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 85074749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com bool isIndexed() const { return fIndexCount > 0; } 851515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org#ifdef SK_DEBUG 852d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com bool isInstanced() const; // this version is longer because of asserts 853d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com#else 854d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com bool isInstanced() const { return fInstanceCount > 0; } 855d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com#endif 856d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 857d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com // adds or remove instances 858d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void adjustInstanceCount(int instanceOffset); 859d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com // shifts the start vertex 860d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void adjustStartVertex(int vertexOffset); 861d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com // shifts the start index 862d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void adjustStartIndex(int indexOffset); 863d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 864d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void setDevBounds(const SkRect& bounds) { 865d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com fDevBoundsStorage = bounds; 866d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com fDevBounds = &fDevBoundsStorage; 867d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com } 868d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com const SkRect* getDevBounds() const { return fDevBounds; } 86905a2ee052c9ef4c781b7b590b00b3d2da3b3449askia.committer@gmail.com 87026e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com // NULL if no copy of the dst is needed for the draw. 87126e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com const GrDeviceCoordTexture* getDstCopy() const { 87226e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com if (NULL != fDstCopy.texture()) { 87326e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com return &fDstCopy; 87426e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com } else { 87526e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com return NULL; 87626e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com } 87726e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com } 87826e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com 87974749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com private: 880d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com DrawInfo() { fDevBounds = NULL; } 881d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 88274749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com friend class GrDrawTarget; 883d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 88426e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com GrPrimitiveType fPrimitiveType; 88574749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 88626e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fStartVertex; 88726e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fStartIndex; 88826e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fVertexCount; 88926e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fIndexCount; 890d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 89126e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fInstanceCount; 89226e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fVerticesPerInstance; 89326e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com int fIndicesPerInstance; 894d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 89526e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com SkRect fDevBoundsStorage; 89626e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com SkRect* fDevBounds; 89726e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com 89826e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com GrDeviceCoordTexture fDstCopy; 89974749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com }; 90074749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com 90102ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.comprivate: 90202ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // A subclass can optionally overload this function to be notified before 90302ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // vertex and index space is reserved. 904b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com virtual void willReserveVertexAndIndexSpace(int vertexCount, int indexCount) {} 90597805382d89b717de3355312a79a957ea4a864c9bsalomon@google.com 90625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // implemented by subclass to allocate space for reserved geom 907a63389843dd18003382d61c2e4610af09ed07d38jvanverth@google.com virtual bool onReserveVertexSpace(size_t vertexSize, int vertexCount, void** vertices) = 0; 90825fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual bool onReserveIndexSpace(int indexCount, void** indices) = 0; 90925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // implemented by subclass to handle release of reserved geom space 91025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseReservedVertexSpace() = 0; 91125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseReservedIndexSpace() = 0; 91225fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // subclass must consume array contents when set 91302ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com virtual void onSetVertexSourceToArray(const void* vertexArray, int vertexCount) = 0; 91402ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com virtual void onSetIndexSourceToArray(const void* indexArray, int indexCount) = 0; 91525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // subclass is notified that geom source will be set away from an array 91625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseVertexArray() = 0; 91725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void releaseIndexArray() = 0; 91802ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com // subclass overrides to be notified just before geo src state is pushed/popped. 91925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void geometrySourceWillPush() = 0; 92025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com virtual void geometrySourceWillPop(const GeometrySrcState& restoredState) = 0; 92125fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // subclass called to perform drawing 92274749cd45c29b4f5300e2518f2c2c765ce8ae208bsalomon@google.com virtual void onDraw(const DrawInfo&) = 0; 9230406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // Implementation of drawRect. The geometry src and vertex attribs will already 9240406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // be saved before this is called and restored afterwards. A subclass may override 9250406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // this to perform more optimal rect rendering. Its draws should be funneled through 9260406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // one of the public GrDrawTarget draw methods (e.g. drawNonIndexed, 9270406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // drawIndexedInstances, ...). The base class draws a two triangle fan using 9280406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com // drawNonIndexed from reserved vertex space. 929fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org virtual void onDrawRect(const SkRect& rect, 930fd03d4a829efe2d77a712fd991927c55f59a2ffecommit-bot@chromium.org const SkRect* localRect, 9310406b9e1faee06c6ecb2732a1bcf3b0e53104e07bsalomon@google.com const SkMatrix* localMatrix); 93232184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org 93332184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org virtual void onStencilPath(const GrPath*, SkPath::FillType) = 0; 93432184d81629e39809bb9e915286d8fe971a8ed68commit-bot@chromium.org virtual void onDrawPath(const GrPath*, SkPath::FillType, 935c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org const GrDeviceCoordTexture* dstCopy) = 0; 936b85a0aab6905af8b329539b7573a7555b727d5e5cdalton virtual void onDrawPaths(const GrPathRange*, 937b85a0aab6905af8b329539b7573a7555b727d5e5cdalton const uint32_t indices[], int count, 938b85a0aab6905af8b329539b7573a7555b727d5e5cdalton const float transforms[], PathTransformType, 939b85a0aab6905af8b329539b7573a7555b727d5e5cdalton SkPath::FillType, const GrDeviceCoordTexture*) = 0; 94064aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com 9412a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org virtual void didAddGpuTraceMarker() = 0; 9422a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org virtual void didRemoveGpuTraceMarker() = 0; 943a3baf3be0e2a3128fb73bd41d40d130f75a4dc86commit-bot@chromium.org 944e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com // helpers for reserving vertex and index space. 945b75b0a0b8492e14c7728e0a0881f87dc64ce60f9jvanverth@google.com bool reserveVertexSpace(size_t vertexSize, 946e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com int vertexCount, 947e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com void** vertices); 948e3d7095c2374a423815e662020459832f389a40fbsalomon@google.com bool reserveIndexSpace(int indexCount, void** indices); 949d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 950e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com // called by drawIndexed and drawNonIndexed. Use a negative indexCount to 951e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com // indicate non-indexed drawing. 952e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com bool checkDraw(GrPrimitiveType type, int startVertex, 953e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com int startIndex, int vertexCount, 954e826262939dac3e67cb5ce66d4b9faeb8e2538e6bsalomon@google.com int indexCount) const; 95525fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com // called when setting a new vert/idx source to unref prev vb/ib 95625fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void releasePreviousVertexSource(); 95725fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com void releasePreviousIndexSource(); 958d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 95926e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com // Makes a copy of the dst if it is necessary for the draw. Returns false if a copy is required 96026e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com // but couldn't be made. Otherwise, returns true. 961c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org bool setupDstReadIfNecessary(DrawInfo* info) { 962c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org return this->setupDstReadIfNecessary(&info->fDstCopy, info->getDevBounds()); 963c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org } 964c4dc0ad8e252a7e30d19b47d3d0d9f2c69faf854commit-bot@chromium.org bool setupDstReadIfNecessary(GrDeviceCoordTexture* dstCopy, const SkRect* drawBounds); 96526e18b593ab65e4d92dfbce92579d8bc180d4c2cbsalomon@google.com 966a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org // Check to see if this set of draw commands has been sent out 967a8916ffd90c04dc6cc1fb9ba94af2ff950284fadcommit-bot@chromium.org virtual bool isIssued(uint32_t drawID) { return true; } 9687475811143e190e172bf83d13c4bdba85704b604skia.committer@gmail.com 96925fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com enum { 97025fb21f5df904c6f111bbf8f07e6a6c339416d09bsalomon@google.com kPreallocGeoSrcStateStackCnt = 4, 971ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com }; 97202ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com SkSTArray<kPreallocGeoSrcStateStackCnt, GeometrySrcState, true> fGeoSrcStateStack; 97302ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com const GrClipData* fClip; 97402ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com GrDrawState* fDrawState; 97502ddc8b85ace91b15feb329a6a1d5d62b2b846c6bsalomon@google.com GrDrawState fDefaultDrawState; 9766e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com // The context owns us, not vice-versa, so this ptr is not ref'ed by DrawTarget. 9776e4e65066a7c0dbc9bfbfe4b8f5d49c3d8a79b59bsalomon@google.com GrContext* fContext; 9782a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org // To keep track that we always have at least as many debug marker adds as removes 9792a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org int fGpuTraceMarkerCount; 9802a05de0c049a8648942a55016126a1f92e1c14d6commit-bot@chromium.org GrTraceMarkerSet fActiveTraceMarkers; 9813eee3834fba1d2e29dfb61adcb97e4624b6a3ac8egdaniel GrTraceMarkerSet fStoredTraceMarkers; 982fa35e3ddcc9d130ce87c927218bdf27879c38711reed@google.com 983a4de8c257ea0be8ff7081f645249b6afe5c48e7ecommit-bot@chromium.org typedef SkRefCnt INHERITED; 984ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com}; 985ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com 986ac10a2d039c5d52eed66e27cbbc503ab523c1cd5reed@google.com#endif 987