Index: skia/gl/SkGL.h |
=================================================================== |
--- skia/gl/SkGL.h (revision 16859) |
+++ skia/gl/SkGL.h (working copy) |
@@ -1,303 +0,0 @@ |
-#ifndef SkGL_DEFINED |
-#define SkGL_DEFINED |
- |
-#ifdef SK_BUILD_FOR_MAC |
- #include <OpenGL/gl.h> |
- #include <OpenGL/glext.h> |
- #include <AGL/agl.h> |
- // use FBOs for devices |
- #define SK_GL_DEVICE_FBO |
-#elif defined(ANDROID) |
- #include <GLES/gl.h> |
- #include <GLES/egl.h> |
-#endif |
- |
-#include "SkColor.h" |
-#include "SkMatrix.h" |
-#include "SkShader.h" |
- |
-class SkPaint; |
-class SkPath; |
- |
-class SkGLClipIter; |
- |
-//#define TRACE_TEXTURE_CREATE |
- |
-/////////////////////////////////////////////////////////////////////////////// |
- |
-#if GL_OES_compressed_paletted_texture |
- #define SK_GL_SUPPORT_COMPRESSEDTEXIMAGE2D |
-#endif |
- |
-#if GL_OES_fixed_point && defined(SK_SCALAR_IS_FIXED) |
- #define SK_GLType GL_FIXED |
-#else |
- #define SK_GLType GL_FLOAT |
-#endif |
- |
-#if SK_GLType == GL_FIXED |
- typedef SkFixed SkGLScalar; |
- |
- #define SkIntToGL(n) SkIntToFixed(n) |
- #define SkScalarToGL(x) SkScalarToFixed(x) |
- #define SK_GLScalar1 SK_Fixed1 |
- #define SkGLScalarMul(a, b) SkFixedMul(a, b) |
- #define MAKE_GL(name) name ## x |
- |
- #ifdef SK_SCALAR_IS_FIXED |
- #define GLSCALAR_IS_SCALAR 1 |
- #define SkPerspToGL(x) SkFractToFixed(x) |
- #else |
- #define GLSCALAR_IS_SCALAR 0 |
- #define SkPerspToGL(x) SkFractToFloat(x) |
- #endif |
-#else |
- typedef float SkGLScalar; |
- |
- #define SkIntToGL(n) (n) |
- #define SkScalarToGL(x) SkScalarToFloat(x) |
- #define SK_GLScalar1 (1.f) |
- #define SkGLScalarMul(a, b) ((a) * (b)) |
- #define MAKE_GL(name) name ## f |
- |
- #ifdef SK_SCALAR_IS_FLOAT |
- #define GLSCALAR_IS_SCALAR 1 |
- #define SkPerspToGL(x) (x) |
- #else |
- #define GLSCALAR_IS_SCALAR 0 |
- #define SkPerspToGL(x) SkFractToFloat(x) |
- #endif |
-#endif |
- |
-#if GL_OES_fixed_point |
- typedef SkFixed SkGLTextScalar; |
- #define SK_TextGLType GL_FIXED |
- |
- #define SkIntToTextGL(n) SkIntToFixed(n) |
- #define SkFixedToTextGL(x) (x) |
- |
- #define SK_glTexParameteri(target, pname, param) \ |
- glTexParameterx(target, pname, param) |
-#else |
- typedef float SkGLTextScalar; |
- #define SK_TextGLType SK_GLType |
- #define SK_GL_HAS_COLOR4UB |
- |
- #define SkIntToTextGL(n) SkIntToGL(n) |
- #define SkFixedToTextGL(x) SkFixedToFloat(x) |
- |
- |
- #define SK_glTexParameteri(target, pname, param) \ |
- glTexParameteri(target, pname, param) |
-#endif |
- |
-/////////////////////////////////////////////////////////////////////////////// |
- |
-// text has its own vertex class, since it may want to be in fixed point (given) |
-// that it starts with all integers) even when the default vertices are floats |
-struct SkGLTextVertex { |
- SkGLTextScalar fX; |
- SkGLTextScalar fY; |
- |
- void setI(int x, int y) { |
- fX = SkIntToTextGL(x); |
- fY = SkIntToTextGL(y); |
- } |
- |
- void setX(SkFixed x, SkFixed y) { |
- fX = SkFixedToTextGL(x); |
- fY = SkFixedToTextGL(y); |
- } |
- |
- // counter-clockwise fan |
- void setIRectFan(int l, int t, int r, int b) { |
- SkGLTextVertex* SK_RESTRICT v = this; |
- v[0].setI(l, t); |
- v[1].setI(l, b); |
- v[2].setI(r, b); |
- v[3].setI(r, t); |
- } |
- |
- // counter-clockwise fan |
- void setXRectFan(SkFixed l, SkFixed t, SkFixed r, SkFixed b) { |
- SkGLTextVertex* SK_RESTRICT v = this; |
- v[0].setX(l, t); |
- v[1].setX(l, b); |
- v[2].setX(r, b); |
- v[3].setX(r, t); |
- } |
-}; |
- |
-struct SkGLVertex { |
- SkGLScalar fX; |
- SkGLScalar fY; |
- |
- void setGL(SkGLScalar x, SkGLScalar y) { |
- fX = x; |
- fY = y; |
- } |
- |
- void setScalars(SkScalar x, SkScalar y) { |
- fX = SkScalarToGL(x); |
- fY = SkScalarToGL(y); |
- } |
- |
- void setPoint(const SkPoint& pt) { |
- fX = SkScalarToGL(pt.fX); |
- fY = SkScalarToGL(pt.fY); |
- } |
- |
- void setPoints(const SkPoint* SK_RESTRICT pts, int count) { |
- const SkScalar* SK_RESTRICT src = (const SkScalar*)pts; |
- SkGLScalar* SK_RESTRICT dst = (SkGLScalar*)this; |
- for (int i = 0; i < count; i++) { |
- *dst++ = SkScalarToGL(*src++); |
- *dst++ = SkScalarToGL(*src++); |
- } |
- } |
- |
- // counter-clockwise fan |
- void setRectFan(SkScalar l, SkScalar t, SkScalar r, SkScalar b) { |
- SkGLVertex* v = this; |
- v[0].setScalars(l, t); |
- v[1].setScalars(l, b); |
- v[2].setScalars(r, b); |
- v[3].setScalars(r, t); |
- } |
- |
- // counter-clockwise fan |
- void setIRectFan(int l, int t, int r, int b) { |
- SkGLVertex* v = this; |
- v[0].setGL(SkIntToGL(l), SkIntToGL(t)); |
- v[1].setGL(SkIntToGL(l), SkIntToGL(b)); |
- v[2].setGL(SkIntToGL(r), SkIntToGL(b)); |
- v[3].setGL(SkIntToGL(r), SkIntToGL(t)); |
- } |
- |
- // counter-clockwise fan |
- void setRectFan(const SkRect& r) { |
- this->setRectFan(r.fLeft, r.fTop, r.fRight, r.fBottom); |
- } |
- |
- // counter-clockwise fan |
- void setIRectFan(const SkIRect& r) { |
- this->setIRectFan(r.fLeft, r.fTop, r.fRight, r.fBottom); |
- } |
-}; |
- |
-struct SkGLMatrix { |
- SkGLScalar fMat[16]; |
- |
- void reset() { |
- bzero(fMat, sizeof(fMat)); |
- fMat[0] = fMat[5] = fMat[10] = fMat[15] = SK_GLScalar1; |
- } |
- |
- void set(const SkMatrix& m) { |
- bzero(fMat, sizeof(fMat)); |
- fMat[0] = SkScalarToGL(m[SkMatrix::kMScaleX]); |
- fMat[4] = SkScalarToGL(m[SkMatrix::kMSkewX]); |
- fMat[12] = SkScalarToGL(m[SkMatrix::kMTransX]); |
- |
- fMat[1] = SkScalarToGL(m[SkMatrix::kMSkewY]); |
- fMat[5] = SkScalarToGL(m[SkMatrix::kMScaleY]); |
- fMat[13] = SkScalarToGL(m[SkMatrix::kMTransY]); |
- |
- fMat[3] = SkPerspToGL(m[SkMatrix::kMPersp0]); |
- fMat[7] = SkPerspToGL(m[SkMatrix::kMPersp1]); |
- fMat[15] = SkPerspToGL(m[SkMatrix::kMPersp2]); |
- |
- fMat[10] = SK_GLScalar1; // z-scale |
- } |
-}; |
- |
-class SkGL { |
-public: |
- static void SetColor(SkColor c); |
- static void SetAlpha(U8CPU alpha); |
- static void SetPaint(const SkPaint&, bool isPremul = true, |
- bool justAlpha = false); |
- static void SetPaintAlpha(const SkPaint& paint, bool isPremul = true) { |
- SetPaint(paint, isPremul, true); |
- } |
- |
- static void SetRGBA(uint8_t rgba[], const SkColor src[], int count); |
- static void DumpError(const char caller[]); |
- |
- static void Ortho(float left, float right, float bottom, float top, |
- float near, float far); |
- |
- static inline void Translate(SkScalar dx, SkScalar dy) { |
- MAKE_GL(glTranslate)(SkScalarToGL(dx), SkScalarToGL(dy), 0); |
- } |
- |
- static inline void Scale(SkScalar sx, SkScalar sy) { |
- MAKE_GL(glScale)(SkScalarToGL(sx), SkScalarToGL(sy), SK_GLScalar1); |
- } |
- |
- static inline void Rotate(SkScalar angle) { |
- MAKE_GL(glRotate)(SkScalarToGL(angle), 0, 0, SK_GLScalar1); |
- } |
- |
- static inline void MultMatrix(const SkMatrix& m) { |
- SkGLMatrix glm; |
- glm.set(m); |
- MAKE_GL(glMultMatrix)(glm.fMat); |
- } |
- |
- static inline void LoadMatrix(const SkMatrix& m) { |
- SkGLMatrix glm; |
- glm.set(m); |
- MAKE_GL(glLoadMatrix)(glm.fMat); |
- } |
- |
- static void Scissor(const SkIRect&, int viewportHeight); |
- |
- // return the byte size for the associated texture memory. This doesn't |
- // always == bitmap.getSize(), since on a given port we may have to change |
- // the format when the bitmap's pixels are copied over to GL |
- static size_t ComputeTextureMemorySize(const SkBitmap&); |
- // return 0 on failure |
- static GLuint BindNewTexture(const SkBitmap&, SkPoint* dimension); |
- |
- static void SetTexParams(bool filter, |
- SkShader::TileMode tx, SkShader::TileMode ty); |
- static void SetTexParamsClamp(bool filter); |
- |
- static void DrawVertices(int count, GLenum mode, |
- const SkGLVertex* SK_RESTRICT vertex, |
- const SkGLVertex* SK_RESTRICT texCoords, |
- const uint8_t* SK_RESTRICT colorArray, |
- const uint16_t* SK_RESTRICT indexArray, |
- SkGLClipIter*); |
- |
- static void PrepareForFillPath(SkPaint* paint); |
- static void FillPath(const SkPath& path, const SkPaint& paint, bool useTex, |
- SkGLClipIter*); |
- static void DrawPath(const SkPath& path, bool useTex, SkGLClipIter*); |
-}; |
- |
-#include "SkRegion.h" |
- |
-class SkGLClipIter : public SkRegion::Iterator { |
-public: |
- SkGLClipIter(int viewportHeight) : fViewportHeight(viewportHeight) {} |
- |
- // call rewind only if this is non-null |
- void safeRewind() { |
- if (this) { |
- this->rewind(); |
- } |
- } |
- |
- void scissor() { |
- SkASSERT(!this->done()); |
- SkGL::Scissor(this->rect(), fViewportHeight); |
- } |
- |
-private: |
- const int fViewportHeight; |
-}; |
- |
-#endif |
- |