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-rw-r--r--src/gpu/gl/GrGLAssembleInterface.cpp5
-rw-r--r--src/gpu/gl/GrGLCaps.cpp45
-rw-r--r--src/gpu/gl/GrGLCaps.h1
-rw-r--r--src/gpu/gl/GrGLGpu.h3
-rw-r--r--src/gpu/gl/GrGLInterface.cpp32
-rw-r--r--src/gpu/gl/GrGLPathRendering.cpp78
-rw-r--r--src/gpu/gl/GrGLPathRendering.h33
7 files changed, 144 insertions, 53 deletions
diff --git a/src/gpu/gl/GrGLAssembleInterface.cpp b/src/gpu/gl/GrGLAssembleInterface.cpp
index 3f66c0388a..1fe53ebc3e 100644
--- a/src/gpu/gl/GrGLAssembleInterface.cpp
+++ b/src/gpu/gl/GrGLAssembleInterface.cpp
@@ -273,6 +273,7 @@ const GrGLInterface* GrGLAssembleGLInterface(void* ctx, GrGLGetProc get) {
GET_PROC_SUFFIX(MatrixLoadf, EXT);
GET_PROC_SUFFIX(MatrixLoadIdentity, EXT);
GET_PROC_SUFFIX(PathCommands, NV);
+ GET_PROC_SUFFIX(PathCoords, NV);
GET_PROC_SUFFIX(PathParameteri, NV);
GET_PROC_SUFFIX(PathParameterf, NV);
GET_PROC_SUFFIX(GenPaths, NV);
@@ -283,14 +284,17 @@ const GrGLInterface* GrGLAssembleGLInterface(void* ctx, GrGLGetProc get) {
GET_PROC_SUFFIX(StencilStrokePath, NV);
GET_PROC_SUFFIX(StencilFillPathInstanced, NV);
GET_PROC_SUFFIX(StencilStrokePathInstanced, NV);
+ GET_PROC_SUFFIX(PathTexGen, NV);
GET_PROC_SUFFIX(CoverFillPath, NV);
GET_PROC_SUFFIX(CoverStrokePath, NV);
GET_PROC_SUFFIX(CoverFillPathInstanced, NV);
GET_PROC_SUFFIX(CoverStrokePathInstanced, NV);
+ // NV_path_rendering v1.2 (These methods may not be present)
GET_PROC_SUFFIX(StencilThenCoverFillPath, NV);
GET_PROC_SUFFIX(StencilThenCoverStrokePath, NV);
GET_PROC_SUFFIX(StencilThenCoverFillPathInstanced, NV);
GET_PROC_SUFFIX(StencilThenCoverStrokePathInstanced, NV);
+ // NV_path_rendering v1.3 (These methods may not be present)
GET_PROC_SUFFIX(ProgramPathFragmentInputGen, NV);
}
@@ -678,6 +682,7 @@ const GrGLInterface* GrGLAssembleGLESInterface(void* ctx, GrGLGetProc get) {
GET_PROC_SUFFIX(MatrixLoadf, EXT);
GET_PROC_SUFFIX(MatrixLoadIdentity, EXT);
GET_PROC_SUFFIX(PathCommands, NV);
+ GET_PROC_SUFFIX(PathCoords, NV);
GET_PROC_SUFFIX(PathParameteri, NV);
GET_PROC_SUFFIX(PathParameterf, NV);
GET_PROC_SUFFIX(GenPaths, NV);
diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp
index 539212c3a5..feb45eab88 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -279,7 +279,21 @@ void GrGLCaps::init(const GrContextOptions& contextOptions,
* GrShaderCaps fields
**************************************************************************/
- glslCaps->fPathRenderingSupport = this->hasPathRenderingSupport(ctxInfo, gli);
+ glslCaps->fPathRenderingSupport = ctxInfo.hasExtension("GL_NV_path_rendering");
+
+ if (glslCaps->fPathRenderingSupport) {
+ if (kGL_GrGLStandard == standard) {
+ // We only support v1.3+ of GL_NV_path_rendering which allows us to
+ // set individual fragment inputs with ProgramPathFragmentInputGen. The API
+ // additions are detected by checking the existence of the function.
+ glslCaps->fPathRenderingSupport = ((ctxInfo.version() >= GR_GL_VER(4, 3) ||
+ ctxInfo.hasExtension("GL_ARB_program_interface_query")) &&
+ gli->fFunctions.fProgramPathFragmentInputGen);
+ }
+ else {
+ glslCaps->fPathRenderingSupport = ctxInfo.version() >= GR_GL_VER(3, 1);
+ }
+ }
// For now these two are equivalent but we could have dst read in shader via some other method
glslCaps->fDstReadInShaderSupport = glslCaps->fFBFetchSupport;
@@ -463,35 +477,6 @@ void GrGLCaps::init(const GrContextOptions& contextOptions,
glslCaps->applyOptionsOverrides(contextOptions);
}
-bool GrGLCaps::hasPathRenderingSupport(const GrGLContextInfo& ctxInfo, const GrGLInterface* gli) {
- if (!ctxInfo.hasExtension("GL_NV_path_rendering")) {
- return false;
- }
- if (kGL_GrGLStandard == ctxInfo.standard()) {
- if (ctxInfo.version() < GR_GL_VER(4, 3) &&
- !ctxInfo.hasExtension("GL_ARB_program_interface_query")) {
- return false;
- }
- } else {
- if (ctxInfo.version() < GR_GL_VER(3, 1)) {
- return false;
- }
- }
- // We only support v1.3+ of GL_NV_path_rendering which allows us to
- // set individual fragment inputs with ProgramPathFragmentInputGen. The API
- // additions are detected by checking the existence of the function.
- // We also use *Then* functions that not all drivers might have. Check
- // them for consistency.
- if (NULL == gli->fFunctions.fStencilThenCoverFillPath ||
- NULL == gli->fFunctions.fStencilThenCoverStrokePath ||
- NULL == gli->fFunctions.fStencilThenCoverFillPathInstanced ||
- NULL == gli->fFunctions.fStencilThenCoverStrokePathInstanced ||
- NULL == gli->fFunctions.fProgramPathFragmentInputGen) {
- return false;
- }
- return true;
-}
-
void GrGLCaps::initConfigRenderableTable(const GrGLContextInfo& ctxInfo) {
// OpenGL < 3.0
// no support for render targets unless the GL_ARB_framebuffer_object
diff --git a/src/gpu/gl/GrGLCaps.h b/src/gpu/gl/GrGLCaps.h
index ac90aa1db6..1e07a76ed5 100644
--- a/src/gpu/gl/GrGLCaps.h
+++ b/src/gpu/gl/GrGLCaps.h
@@ -281,7 +281,6 @@ public:
private:
void init(const GrContextOptions&, const GrGLContextInfo&, const GrGLInterface*);
- bool hasPathRenderingSupport(const GrGLContextInfo&, const GrGLInterface*);
/**
* Maintains a bit per GrPixelConfig. It is used to avoid redundantly
diff --git a/src/gpu/gl/GrGLGpu.h b/src/gpu/gl/GrGLGpu.h
index e5cd7a9a9d..4872db7309 100644
--- a/src/gpu/gl/GrGLGpu.h
+++ b/src/gpu/gl/GrGLGpu.h
@@ -54,7 +54,8 @@ public:
void discard(GrRenderTarget*) override;
- // Used by GrGLProgram to configure OpenGL state.
+ // Used by GrGLProgram and GrGLPathTexGenProgramEffects to configure OpenGL
+ // state.
void bindTexture(int unitIdx, const GrTextureParams& params, GrGLTexture* texture);
// GrGpu overrides
diff --git a/src/gpu/gl/GrGLInterface.cpp b/src/gpu/gl/GrGLInterface.cpp
index 56f1e59275..3d44f6d602 100644
--- a/src/gpu/gl/GrGLInterface.cpp
+++ b/src/gpu/gl/GrGLInterface.cpp
@@ -40,6 +40,7 @@ const GrGLInterface* GrGLInterfaceRemoveNVPR(const GrGLInterface* interface) {
newInterface->fExtensions.remove("GL_NV_path_rendering");
newInterface->fFunctions.fPathCommands = NULL;
+ newInterface->fFunctions.fPathCoords = NULL;
newInterface->fFunctions.fPathParameteri = NULL;
newInterface->fFunctions.fPathParameterf = NULL;
newInterface->fFunctions.fGenPaths = NULL;
@@ -50,6 +51,7 @@ const GrGLInterface* GrGLInterfaceRemoveNVPR(const GrGLInterface* interface) {
newInterface->fFunctions.fStencilStrokePath = NULL;
newInterface->fFunctions.fStencilFillPathInstanced = NULL;
newInterface->fFunctions.fStencilStrokePathInstanced = NULL;
+ newInterface->fFunctions.fPathTexGen = NULL;
newInterface->fFunctions.fCoverFillPath = NULL;
newInterface->fFunctions.fCoverStrokePath = NULL;
newInterface->fFunctions.fCoverFillPathInstanced = NULL;
@@ -487,6 +489,7 @@ bool GrGLInterface::validate() const {
if (NULL == fFunctions.fMatrixLoadf ||
NULL == fFunctions.fMatrixLoadIdentity ||
NULL == fFunctions.fPathCommands ||
+ NULL == fFunctions.fPathCoords ||
NULL == fFunctions.fPathParameteri ||
NULL == fFunctions.fPathParameterf ||
NULL == fFunctions.fGenPaths ||
@@ -500,21 +503,24 @@ bool GrGLInterface::validate() const {
NULL == fFunctions.fCoverFillPath ||
NULL == fFunctions.fCoverStrokePath ||
NULL == fFunctions.fCoverFillPathInstanced ||
- NULL == fFunctions.fCoverStrokePathInstanced
-#if 0
- // List of functions that Skia uses, but which have been added since the initial release
- // of NV_path_rendering driver. We do not want to fail interface validation due to
- // missing features, we will just not use the extension.
- // Update this list -> update GrGLCaps::hasPathRenderingSupport too.
- || NULL == fFunctions.fStencilThenCoverFillPath ||
- NULL == fFunctions.fStencilThenCoverStrokePath ||
- NULL == fFunctions.fStencilThenCoverFillPathInstanced ||
- NULL == fFunctions.fStencilThenCoverStrokePathInstanced ||
- NULL == fFunctions.fProgramPathFragmentInputGen
-#endif
- ) {
+ NULL == fFunctions.fCoverStrokePathInstanced) {
RETURN_FALSE_INTERFACE
}
+ if (kGL_GrGLStandard == fStandard) {
+ // Some methods only exist on desktop
+ if (NULL == fFunctions.fPathTexGen) {
+ RETURN_FALSE_INTERFACE
+ }
+ } else {
+ // All additions through v1.3 exist on GLES
+ if (NULL == fFunctions.fStencilThenCoverFillPath ||
+ NULL == fFunctions.fStencilThenCoverStrokePath ||
+ NULL == fFunctions.fStencilThenCoverFillPathInstanced ||
+ NULL == fFunctions.fStencilThenCoverStrokePathInstanced ||
+ NULL == fFunctions.fProgramPathFragmentInputGen) {
+ RETURN_FALSE_INTERFACE
+ }
+ }
}
if (fExtensions.has("GL_EXT_raster_multisample")) {
diff --git a/src/gpu/gl/GrGLPathRendering.cpp b/src/gpu/gl/GrGLPathRendering.cpp
index ffdbbdab26..eb9f5a86f7 100644
--- a/src/gpu/gl/GrGLPathRendering.cpp
+++ b/src/gpu/gl/GrGLPathRendering.cpp
@@ -61,6 +61,16 @@ static GrGLenum gr_stencil_op_to_gl_path_rendering_fill_mode(GrStencilOp op) {
GrGLPathRendering::GrGLPathRendering(GrGLGpu* gpu)
: GrPathRendering(gpu) {
+ const GrGLInterface* glInterface = gpu->glInterface();
+ fCaps.stencilThenCoverSupport =
+ NULL != glInterface->fFunctions.fStencilThenCoverFillPath &&
+ NULL != glInterface->fFunctions.fStencilThenCoverStrokePath &&
+ NULL != glInterface->fFunctions.fStencilThenCoverFillPathInstanced &&
+ NULL != glInterface->fFunctions.fStencilThenCoverStrokePathInstanced;
+ fCaps.fragmentInputGenSupport =
+ NULL != glInterface->fFunctions.fProgramPathFragmentInputGen;
+
+ SkASSERT(fCaps.fragmentInputGenSupport);
}
GrGLPathRendering::~GrGLPathRendering() {
@@ -75,6 +85,7 @@ void GrGLPathRendering::resetContext() {
// we don't use the model view matrix.
GL_CALL(MatrixLoadIdentity(GR_GL_PATH_MODELVIEW));
+ SkASSERT(fCaps.fragmentInputGenSupport);
fHWPathStencilSettings.invalidate();
}
@@ -134,11 +145,9 @@ void GrGLPathRendering::onDrawPath(const DrawPathArgs& args, const GrPath* path)
if (glPath->shouldFill()) {
GL_CALL(StencilFillPath(glPath->pathID(), fillMode, writeMask));
}
- GL_CALL(StencilThenCoverStrokePath(glPath->pathID(), 0xffff, writeMask,
- GR_GL_BOUNDING_BOX));
+ this->stencilThenCoverStrokePath(glPath->pathID(), 0xffff, writeMask, GR_GL_BOUNDING_BOX);
} else {
- GL_CALL(StencilThenCoverFillPath(glPath->pathID(), fillMode, writeMask,
- GR_GL_BOUNDING_BOX));
+ this->stencilThenCoverFillPath(glPath->pathID(), fillMode, writeMask, GR_GL_BOUNDING_BOX);
}
}
@@ -168,21 +177,22 @@ void GrGLPathRendering::onDrawPaths(const DrawPathArgs& args, const GrPathRange*
fillMode, writeMask, gXformType2GLType[transformType],
transformValues));
}
- GL_CALL(StencilThenCoverStrokePathInstanced(
+ this->stencilThenCoverStrokePathInstanced(
count, gIndexType2GLType[indexType], indices, glPathRange->basePathID(),
0xffff, writeMask, GR_GL_BOUNDING_BOX_OF_BOUNDING_BOXES,
- gXformType2GLType[transformType], transformValues));
+ gXformType2GLType[transformType], transformValues);
} else {
- GL_CALL(StencilThenCoverFillPathInstanced(
+ this->stencilThenCoverFillPathInstanced(
count, gIndexType2GLType[indexType], indices, glPathRange->basePathID(),
fillMode, writeMask, GR_GL_BOUNDING_BOX_OF_BOUNDING_BOXES,
- gXformType2GLType[transformType], transformValues));
+ gXformType2GLType[transformType], transformValues);
}
}
void GrGLPathRendering::setProgramPathFragmentInputTransform(GrGLuint program, GrGLint location,
GrGLenum genMode, GrGLint components,
const SkMatrix& matrix) {
+ SkASSERT(caps().fragmentInputGenSupport);
GrGLfloat coefficients[3 * 3];
SkASSERT(components >= 1 && components <= 3);
@@ -290,6 +300,58 @@ void GrGLPathRendering::flushPathStencilSettings(const GrStencilSettings& stenci
}
}
+inline void GrGLPathRendering::stencilThenCoverFillPath(GrGLuint path, GrGLenum fillMode,
+ GrGLuint mask, GrGLenum coverMode) {
+ if (caps().stencilThenCoverSupport) {
+ GL_CALL(StencilThenCoverFillPath(path, fillMode, mask, coverMode));
+ return;
+ }
+ GL_CALL(StencilFillPath(path, fillMode, mask));
+ GL_CALL(CoverFillPath(path, coverMode));
+}
+
+inline void GrGLPathRendering::stencilThenCoverStrokePath(GrGLuint path, GrGLint reference,
+ GrGLuint mask, GrGLenum coverMode) {
+ if (caps().stencilThenCoverSupport) {
+ GL_CALL(StencilThenCoverStrokePath(path, reference, mask, coverMode));
+ return;
+ }
+ GL_CALL(StencilStrokePath(path, reference, mask));
+ GL_CALL(CoverStrokePath(path, coverMode));
+}
+
+inline void GrGLPathRendering::stencilThenCoverFillPathInstanced(
+ GrGLsizei numPaths, GrGLenum pathNameType, const GrGLvoid *paths,
+ GrGLuint pathBase, GrGLenum fillMode, GrGLuint mask, GrGLenum coverMode,
+ GrGLenum transformType, const GrGLfloat *transformValues) {
+ if (caps().stencilThenCoverSupport) {
+ GL_CALL(StencilThenCoverFillPathInstanced(numPaths, pathNameType, paths, pathBase, fillMode,
+ mask, coverMode, transformType, transformValues));
+ return;
+ }
+ GL_CALL(StencilFillPathInstanced(numPaths, pathNameType, paths, pathBase,
+ fillMode, mask, transformType, transformValues));
+ GL_CALL(CoverFillPathInstanced(numPaths, pathNameType, paths, pathBase,
+ coverMode, transformType, transformValues));
+}
+
+inline void GrGLPathRendering::stencilThenCoverStrokePathInstanced(
+ GrGLsizei numPaths, GrGLenum pathNameType, const GrGLvoid *paths,
+ GrGLuint pathBase, GrGLint reference, GrGLuint mask, GrGLenum coverMode,
+ GrGLenum transformType, const GrGLfloat *transformValues) {
+ if (caps().stencilThenCoverSupport) {
+ GL_CALL(StencilThenCoverStrokePathInstanced(numPaths, pathNameType, paths, pathBase,
+ reference, mask, coverMode, transformType,
+ transformValues));
+ return;
+ }
+
+ GL_CALL(StencilStrokePathInstanced(numPaths, pathNameType, paths, pathBase,
+ reference, mask, transformType, transformValues));
+ GL_CALL(CoverStrokePathInstanced(numPaths, pathNameType, paths, pathBase,
+ coverMode, transformType, transformValues));
+}
+
inline GrGLGpu* GrGLPathRendering::gpu() {
return static_cast<GrGLGpu*>(fGpu);
}
diff --git a/src/gpu/gl/GrGLPathRendering.h b/src/gpu/gl/GrGLPathRendering.h
index 86cf1b1698..20fd4967b7 100644
--- a/src/gpu/gl/GrGLPathRendering.h
+++ b/src/gpu/gl/GrGLPathRendering.h
@@ -65,8 +65,35 @@ protected:
void onDrawPaths(const DrawPathArgs&, const GrPathRange*, const void* indices, PathIndexType,
const float transformValues[], PathTransformType, int count) override;
private:
+ /**
+ * Mark certain functionality as not supported if the driver version is too
+ * old and a backup implementation is not practical.
+ */
+ struct Caps {
+ bool stencilThenCoverSupport : 1;
+ bool fragmentInputGenSupport : 1;
+ };
+ const Caps& caps() const { return fCaps; }
+
void flushPathStencilSettings(const GrStencilSettings&);
+ // NV_path_rendering v1.2
+ void stencilThenCoverFillPath(GrGLuint path, GrGLenum fillMode,
+ GrGLuint mask, GrGLenum coverMode);
+
+ void stencilThenCoverStrokePath(GrGLuint path, GrGLint reference,
+ GrGLuint mask, GrGLenum coverMode);
+
+ void stencilThenCoverFillPathInstanced(
+ GrGLsizei numPaths, GrGLenum pathNameType, const GrGLvoid *paths,
+ GrGLuint pathBase, GrGLenum fillMode, GrGLuint mask, GrGLenum coverMode,
+ GrGLenum transformType, const GrGLfloat *transformValues);
+
+ void stencilThenCoverStrokePathInstanced(
+ GrGLsizei numPaths, GrGLenum pathNameType, const GrGLvoid *paths,
+ GrGLuint pathBase, GrGLint reference, GrGLuint mask, GrGLenum coverMode,
+ GrGLenum transformType, const GrGLfloat *transformValues);
+
struct MatrixState {
SkMatrix fViewMatrix;
SkISize fRenderTargetSize;
@@ -101,8 +128,14 @@ private:
GrGLGpu* gpu();
SkAutoTDelete<GrGLNameAllocator> fPathNameAllocator;
+ Caps fCaps;
MatrixState fHWProjectionMatrixState;
GrStencilSettings fHWPathStencilSettings;
+ struct PathTexGenData {
+ GrGLenum fMode;
+ GrGLint fNumComponents;
+ GrGLfloat fCoefficients[3 * 3];
+ };
};
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-09 14:24:31 +0000