diff options
Diffstat (limited to 'gpu')
-rw-r--r-- | gpu/include/GrConfig.h | 6 | ||||
-rw-r--r-- | gpu/include/GrContext.h | 33 | ||||
-rw-r--r-- | gpu/include/GrDrawTarget.h | 90 | ||||
-rw-r--r-- | gpu/include/GrGpu.h | 8 | ||||
-rw-r--r-- | gpu/src/GrContext.cpp | 140 | ||||
-rw-r--r-- | gpu/src/GrDrawTarget.cpp | 10 | ||||
-rw-r--r-- | gpu/src/GrGpu.cpp | 36 |
7 files changed, 259 insertions, 64 deletions
diff --git a/gpu/include/GrConfig.h b/gpu/include/GrConfig.h index 7169e2ef59..b599a537e5 100644 --- a/gpu/include/GrConfig.h +++ b/gpu/include/GrConfig.h @@ -234,6 +234,12 @@ extern void GrPrintf(const char format[], ...); #define GrAlwaysAssert(COND) GR_ALWAYSASSERT(COND) /** + * Crash from unrecoverable condition, optionally with a message. + */ +inline void GrCrash() { GrAlwaysAssert(false); } +inline void GrCrash(const char* msg) { GrPrintf(msg); GrAlwaysAssert(false); } + +/** * GR_DEBUGCODE compiles the code X in debug builds only */ #if !defined(GR_DEBUGCODE) diff --git a/gpu/include/GrContext.h b/gpu/include/GrContext.h index db53b1a859..ccc045e73c 100644 --- a/gpu/include/GrContext.h +++ b/gpu/include/GrContext.h @@ -233,21 +233,40 @@ public: /**
* Draw the rect using a paint.
- * If strokeWidth < 0, then the rect is filled, else the rect is mitered
- * stroked based on strokeWidth. If strokeWidth == 0, then the stroke is
- * always a single pixel thick.
+ * @param paint describes how to color pixels.
+ * @param strokeWidth If strokeWidth < 0, then the rect is filled, else
+ * the rect is mitered stroked based on strokeWidth. If
+ * strokeWidth == 0, then the stroke is always a single
+ * pixel thick.
+ * @param matrix Optional matrix applied to the rect. Applied before
+ * context's matrix or the paint's matrix.
* The rects coords are used to access the paint (through texture matrix)
*/
- void drawRect(const GrPaint& paint, const GrRect&, GrScalar strokeWidth = -1);
+ void drawRect(const GrPaint& paint,
+ const GrRect&,
+ GrScalar strokeWidth = -1,
+ const GrMatrix* matrix = NULL);
/**
* Maps a rect of paint coordinates onto the a rect of destination
- * coordinates. The srcRect is transformed by the paint's matrix and the
- * dstRect is transformed by the context's matrix.
+ * coordinates. Each rect can optionally be transformed. The srcRect
+ * is stretched over the dstRect. The dstRect is transformed by the
+ * context's matrix and the srcRect is transformed by the paint's matrix.
+ * Additional optional matrices can be provided by parameters.
+ *
+ * @param paint describes how to color pixels.
+ * @param dstRect the destination rect to draw.
+ * @param srcRect rect of paint coordinates to be mapped onto dstRect
+ * @param dstMatrix Optional matrix to transform dstRect. Applied before
+ * context's matrix.
+ * @param srcMatrix Optional matrix to transform srcRect Applied before
+ * paint's matrix.
*/
void drawRectToRect(const GrPaint& paint,
const GrRect& dstRect,
- const GrRect& srcRect);
+ const GrRect& srcRect,
+ const GrMatrix* dstMatrix = NULL,
+ const GrMatrix* srcMatrix = NULL);
/**
* Path filling rules
diff --git a/gpu/include/GrDrawTarget.h b/gpu/include/GrDrawTarget.h index 862559e601..e7f37f167e 100644 --- a/gpu/include/GrDrawTarget.h +++ b/gpu/include/GrDrawTarget.h @@ -238,7 +238,7 @@ public: * requirements. The texture matrix is applied both when the texture * coordinates are explicit and when vertex positions are used as texture * coordinates. In the latter case the texture matrix is applied to the - * pre-modelview position values. + * pre-view-matrix position values. * * @param stage the stage for which to set a matrix. * @param m the matrix used to transform the texture coordinates. @@ -246,6 +246,25 @@ public: void setTextureMatrix(int stage, const GrMatrix& m); /** + * Multiplies the current texture matrix for a stage by a matrix + * + * After this call T' = T*m where T is the old tex matrix, + * m is the parameter to this function, and T' is the new tex matrix. + * (We consider positions to be column vectors so tex cood vector t is + * transformed by matrix X as t' = X*t.) + * + * @param m the matrix used to modify the texture matrix matrix. + */ + void concatTextureMatrix(int stage, const GrMatrix& m); + + /** + * Retrieves the current texture matrix for a stage + * @param stage index of stage + * @return the stage's current texture matrix. + */ + const GrMatrix& getTextureMatrix(int stage) const; + + /** * Sets the matrix applied to veretx positions. * * In the post-view-matrix space the rectangle [0,w]x[0,h] @@ -264,11 +283,28 @@ public: * (We consider positions to be column vectors so position vector p is * transformed by matrix X as p' = X*p.) * - * @param m the matrix used to modify the modelview matrix. + * @param m the matrix used to modify the view matrix. */ void concatViewMatrix(const GrMatrix& m); /** + * Retrieves the current view matrix + * @return the current view matrix. + */ + const GrMatrix& getViewMatrix() const; + + /** + * Retrieves the inverse of the current view matrix. + * + * If the current view matrix is invertible, return true, and if matrix + * is non-null, copy the inverse into it. If the current view matrix is + * non-invertible, return false and ignore the matrix parameter. + * + * @param matrix if not null, will receive a copy of the current inverse. + */ + bool getViewInverse(GrMatrix* matrix) const; + + /** * Sets color for next draw to a premultiplied-alpha color. * * @param the color to set. @@ -332,23 +368,6 @@ public: void setBlendFunc(BlendCoeff srcCoef, BlendCoeff dstCoef); /** - * Retrieves the current view matrix - * return the current view matrix. - */ - const GrMatrix& getViewMatrix() const; - - /** - * Retrieves the inverse of the current view matrix. - * - * If the current view matrix is invertible, return true, and if matrix - * is non-null, copy the inverse into it. If the current view matrix is - * non-invertible, return false and ignore the matrix parameter. - * - * @param matrix if not null, will receive a copy of the current inverse. - */ - bool getViewInverse(GrMatrix* matrix) const; - - /** * Used to save and restore the GrGpu's drawing state */ struct SavedDrawState { @@ -612,6 +631,39 @@ public: }; /////////////////////////////////////////////////////////////////////////// + + class AutoViewMatrixRestore : ::GrNoncopyable { + public: + AutoViewMatrixRestore() { + fDrawTarget = NULL; + } + + AutoViewMatrixRestore(GrDrawTarget* target) + : fDrawTarget(target), fMatrix(fDrawTarget->getViewMatrix()) { + GrAssert(NULL != target); + } + + void set(GrDrawTarget* target) { + GrAssert(NULL != target); + if (NULL != fDrawTarget) { + fDrawTarget->setViewMatrix(fMatrix); + } + fDrawTarget = target; + fMatrix = target->getViewMatrix(); + } + + ~AutoViewMatrixRestore() { + if (NULL != fDrawTarget) { + fDrawTarget->setViewMatrix(fMatrix); + } + } + + private: + GrDrawTarget* fDrawTarget; + GrMatrix fMatrix; + }; + + /////////////////////////////////////////////////////////////////////////// class AutoReleaseGeometry : ::GrNoncopyable { public: diff --git a/gpu/include/GrGpu.h b/gpu/include/GrGpu.h index 62f68cafd6..5a9281e883 100644 --- a/gpu/include/GrGpu.h +++ b/gpu/include/GrGpu.h @@ -321,6 +321,11 @@ public: int maxQuadsInIndexBuffer() const; /** + * Returns a vertex buffer with four position-only vertices [(0,0), (1,0), (1,1), (0,1)] + */ + const GrVertexBuffer* unitSquareVertexBuffer() const; + + /** * Ensures that the current render target is actually set in the * underlying 3D API. Used when client wants to use 3D API to directly * render to the RT. @@ -426,6 +431,9 @@ private: mutable GrIndexBuffer* fQuadIndexBuffer; // mutable so it can be // created on-demand + mutable GrVertexBuffer* fUnitSquareVertexBuffer; // mutable so it can be + // created on-demand + static const int MAX_VERTEX_SIZE = GR_CT_MAX(2*sizeof(GrPoint) + sizeof(GrColor), 2*sizeof(GrGpuTextVertex)); static const int VERTEX_STORAGE = 16 * MAX_VERTEX_SIZE; diff --git a/gpu/src/GrContext.cpp b/gpu/src/GrContext.cpp index 9b94b7a6ae..bcccc4e220 100644 --- a/gpu/src/GrContext.cpp +++ b/gpu/src/GrContext.cpp @@ -24,6 +24,7 @@ #include "GrIndexBuffer.h"
#define DEFER_TEXT_RENDERING 1
+#define USE_STATIC_RECT_VB 0
static const size_t MAX_TEXTURE_CACHE_COUNT = 128;
static const size_t MAX_TEXTURE_CACHE_BYTES = 8 * 1024 * 1024;
@@ -332,25 +333,31 @@ static void setStrokeRectStrip(GrPoint verts[10], const GrRect& rect, void GrContext::drawRect(const GrPaint& paint,
const GrRect& rect,
- GrScalar width) {
+ GrScalar width,
+ const GrMatrix* matrix) {
- GrVertexLayout layout = (NULL != paint.getTexture()) ?
+ bool textured = NULL != paint.getTexture();
+ GrVertexLayout layout = (textured) ?
GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0) :
0;
- static const int worstCaseVertCount = 10;
- GrDrawTarget::AutoReleaseGeometry geo(fGpu, layout, worstCaseVertCount, 0);
- if (!geo.succeeded()) {
- return;
- }
-
this->prepareToDraw(paint);
- int vertCount;
- GrDrawTarget::PrimitiveType primType;
- GrPoint* vertex = geo.positions();
-
if (width >= 0) {
+ // TODO: consider making static vertex buffers for these cases.
+ // Hairline could be done by just adding closing vertex to
+ // unitSquareVertexBuffer()
+ static const int worstCaseVertCount = 10;
+ GrDrawTarget::AutoReleaseGeometry geo(fGpu, layout, worstCaseVertCount, 0);
+
+ if (!geo.succeeded()) {
+ return;
+ }
+
+ GrDrawTarget::PrimitiveType primType;
+ int vertCount;
+ GrPoint* vertex = geo.positions();
+
if (width > 0) {
vertCount = 10;
primType = GrDrawTarget::kTriangleStrip_PrimitiveType;
@@ -365,44 +372,111 @@ void GrContext::drawRect(const GrPaint& paint, vertex[3].set(rect.fLeft, rect.fBottom);
vertex[4].set(rect.fLeft, rect.fTop);
}
+
+ GrDrawTarget::AutoViewMatrixRestore avmr;
+ if (NULL != matrix) {
+ avmr.set(fGpu);
+ fGpu->concatViewMatrix(*matrix);
+ fGpu->concatTextureMatrix(0, *matrix);
+ }
+
+ fGpu->drawNonIndexed(primType, 0, vertCount);
} else {
- vertCount = 4;
- primType = GrDrawTarget::kTriangleFan_PrimitiveType;
- vertex->setRectFan(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom);
- }
+ #if USE_STATIC_RECT_VB
+ fGpu->setVertexSourceToBuffer(fGpu->unitSquareVertexBuffer(), layout);
+ GrDrawTarget::AutoViewMatrixRestore avmr(fGpu);
+ GrMatrix m;
+ m.setAll(rect.width(), 0, rect.fLeft,
+ 0, rect.height(), rect.fTop,
+ 0, 0, GrMatrix::I()[8]);
+
+ if (NULL != matrix) {
+ m.postConcat(*matrix);
+ }
- fGpu->drawNonIndexed(primType, 0, vertCount);
+ fGpu->concatViewMatrix(m);
+
+ if (textured) {
+ fGpu->concatTextureMatrix(0, m);
+ }
+ #else
+ GrDrawTarget::AutoReleaseGeometry geo(fGpu, layout, 4, 0);
+ GrPoint* vertex = geo.positions();
+ vertex->setRectFan(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom);
+
+ GrDrawTarget::AutoViewMatrixRestore avmr;
+ if (NULL != matrix) {
+ avmr.set(fGpu);
+ fGpu->concatViewMatrix(*matrix);
+ fGpu->concatTextureMatrix(0, *matrix);
+ }
+ #endif
+
+ fGpu->drawNonIndexed(GrDrawTarget::kTriangleFan_PrimitiveType, 0, 4);
+ }
}
void GrContext::drawRectToRect(const GrPaint& paint,
const GrRect& dstRect,
- const GrRect& srcRect) {
+ const GrRect& srcRect,
+ const GrMatrix* dstMatrix,
+ const GrMatrix* srcMatrix) {
if (NULL == paint.getTexture()) {
- drawRect(paint, dstRect);
+ drawRect(paint, dstRect, -1, dstMatrix);
return;
}
- GrVertexLayout layout = GrDrawTarget::StageTexCoordVertexLayoutBit(0,0);
- static const int VCOUNT = 4;
+ this->prepareToDraw(paint);
- GrDrawTarget::AutoReleaseGeometry geo(fGpu, layout, VCOUNT, 0);
- if (!geo.succeeded()) {
- return;
+#if USE_STATIC_RECT_VB
+ GrVertexLayout layout = GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0);
+ GrDrawTarget::AutoViewMatrixRestore avmr(fGpu);
+
+ GrMatrix m;
+
+ m.setAll(dstRect.width(), 0, dstRect.fLeft,
+ 0, dstRect.height(), dstRect.fTop,
+ 0, 0, GrMatrix::I()[8]);
+ if (NULL != dstMatrix) {
+ m.postConcat(*dstMatrix);
}
+ fGpu->concatViewMatrix(m);
- this->prepareToDraw(paint);
+ m.setAll(srcRect.width(), 0, srcRect.fLeft,
+ 0, srcRect.height(), srcRect.fTop,
+ 0, 0, GrMatrix::I()[8]);
+ if (NULL != srcMatrix) {
+ m.postConcat(*srcMatrix);
+ }
+ fGpu->concatTextureMatrix(0, m);
- GrPoint* vertex = (GrPoint*) geo.vertices();
+ fGpu->setVertexSourceToBuffer(fGpu->unitSquareVertexBuffer(), layout);
+#else
+ GrVertexLayout layout = GrDrawTarget::StageTexCoordVertexLayoutBit(0,0);
- vertex[0].setRectFan(dstRect.fLeft, dstRect.fTop,
- dstRect.fRight, dstRect.fBottom,
- 2 * sizeof(GrPoint));
- vertex[1].setRectFan(srcRect.fLeft, srcRect.fTop,
- srcRect.fRight, srcRect.fBottom,
- 2 * sizeof(GrPoint));
+ GrDrawTarget::AutoReleaseGeometry geo(fGpu, layout, 4, 0);
+ GrPoint* pos = geo.positions();
+ GrPoint* tex = pos + 1;
+ static const size_t stride = 2 * sizeof(GrPoint);
+ pos[0].setRectFan(dstRect.fLeft, dstRect.fTop,
+ dstRect.fRight, dstRect.fBottom,
+ stride);
+ tex[0].setRectFan(srcRect.fLeft, srcRect.fTop,
+ srcRect.fRight, srcRect.fBottom,
+ stride);
+
+ GrDrawTarget::AutoViewMatrixRestore avmr;
+ if (NULL != dstMatrix) {
+ avmr.set(fGpu);
+ fGpu->concatViewMatrix(*dstMatrix);
+ }
+ if (NULL != srcMatrix) {
+ fGpu->concatTextureMatrix(0, *srcMatrix);
+ }
- fGpu->drawNonIndexed(GrDrawTarget::kTriangleFan_PrimitiveType, 0, VCOUNT);
+#endif
+ fGpu->drawNonIndexed(GrDrawTarget::kTriangleFan_PrimitiveType, 0, 4);
}
void GrContext::drawVertices(const GrPaint& paint,
diff --git a/gpu/src/GrDrawTarget.cpp b/gpu/src/GrDrawTarget.cpp index 0101ecd685..96afe2f8ed 100644 --- a/gpu/src/GrDrawTarget.cpp +++ b/gpu/src/GrDrawTarget.cpp @@ -358,6 +358,16 @@ void GrDrawTarget::setTextureMatrix(int stage, const GrMatrix& m) { fCurrDrawState.fTextureMatrices[stage] = m; } +void GrDrawTarget::concatTextureMatrix(int stage, const GrMatrix& m) { + GrAssert(stage >= 0 && stage < kNumStages); + fCurrDrawState.fTextureMatrices[stage].preConcat(m); +} + +const GrMatrix& GrDrawTarget::getTextureMatrix(int stage) const { + GrAssert(stage >= 0 && stage < kNumStages); + return fCurrDrawState.fTextureMatrices[stage]; +} + void GrDrawTarget::setStencilPass(StencilPass pass) { fCurrDrawState.fStencilPass = pass; } diff --git a/gpu/src/GrGpu.cpp b/gpu/src/GrGpu.cpp index d8bbcd2152..36247471ad 100644 --- a/gpu/src/GrGpu.cpp +++ b/gpu/src/GrGpu.cpp @@ -21,6 +21,7 @@ #include "GrTextureCache.h" #include "GrClipIterator.h" #include "GrIndexBuffer.h" +#include "GrVertexBuffer.h" /////////////////////////////////////////////////////////////////////////////// @@ -57,7 +58,8 @@ extern void gr_run_unittests(); GrGpu::GrGpu() : f8bitPaletteSupport(false), fNPOTTextureSupport(kNone_NPOTTextureType), - fQuadIndexBuffer(NULL) { + fQuadIndexBuffer(NULL), + fUnitSquareVertexBuffer(NULL) { #if GR_DEBUG // gr_run_unittests(); #endif @@ -65,9 +67,8 @@ GrGpu::GrGpu() : f8bitPaletteSupport(false), } GrGpu::~GrGpu() { - if (NULL != fQuadIndexBuffer) { - fQuadIndexBuffer->unref(); - } + GrSafeUnref(fQuadIndexBuffer); + GrSafeUnref(fUnitSquareVertexBuffer); } void GrGpu::resetContext() { @@ -155,7 +156,7 @@ const GrIndexBuffer* GrGpu::quadIndexBuffer() const { if (!fQuadIndexBuffer->updateData(indices, SIZE)) { fQuadIndexBuffer->unref(); fQuadIndexBuffer = NULL; - GrAssert(!"Can't get indices into buffer!"); + GrCrash("Can't get indices into buffer!"); } GrFree(indices); } @@ -165,6 +166,31 @@ const GrIndexBuffer* GrGpu::quadIndexBuffer() const { return fQuadIndexBuffer; } +const GrVertexBuffer* GrGpu::unitSquareVertexBuffer() const { + if (NULL == fUnitSquareVertexBuffer) { + + static const GrPoint DATA[] = { + GrPoint(0, 0), + GrPoint(GR_Scalar1,0), + GrPoint(GR_Scalar1,GR_Scalar1), + GrPoint(0, GR_Scalar1) + }; + static const size_t SIZE = sizeof(DATA); + + GrGpu* me = const_cast<GrGpu*>(this); + fUnitSquareVertexBuffer = me->createVertexBuffer(SIZE, false); + if (NULL != fUnitSquareVertexBuffer) { + if (!fUnitSquareVertexBuffer->updateData(DATA, SIZE)) { + fUnitSquareVertexBuffer->unref(); + fUnitSquareVertexBuffer = NULL; + GrCrash("Can't get vertices into buffer!"); + } + } + } + + return fUnitSquareVertexBuffer; +} + int GrGpu::maxQuadsInIndexBuffer() const { return (NULL == this->quadIndexBuffer()) ? 0 : MAX_QUADS; } |