| 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
|
| -
|
|
|