/**
* Sets up a scratch GC for fbFill, and saves other parameters for the
* ephyrSolid implementation.
*/
static Bool
ephyrPrepareSolid(PixmapPtr pPix, int alu, Pixel pm, Pixel fg)
{
ScreenPtr pScreen = pPix->drawable.pScreen;
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
EphyrFakexaPriv *fakexa = scrpriv->fakexa;
CARD32 tmpval[3];
ephyrPreparePipelinedAccess(pPix, EXA_PREPARE_DEST);
fakexa->pDst = pPix;
fakexa->pGC = GetScratchGC(pPix->drawable.depth, pScreen);
tmpval[0] = alu;
tmpval[1] = pm;
tmpval[2] = fg;
ChangeGC(fakexa->pGC, GCFunction | GCPlaneMask | GCForeground,
tmpval);
ValidateGC(&pPix->drawable, fakexa->pGC);
TRACE_DRAW();
return TRUE;
}
/**
* Sets up a scratch GC for fbCopyArea, and saves other parameters for the
* ephyrCopy implementation.
*/
static Bool
ephyrPrepareCopy(PixmapPtr pSrc, PixmapPtr pDst, int dx, int dy, int alu,
Pixel pm)
{
ScreenPtr pScreen = pDst->drawable.pScreen;
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
EphyrFakexaPriv *fakexa = scrpriv->fakexa;
CARD32 tmpval[2];
ephyrPreparePipelinedAccess(pDst, EXA_PREPARE_DEST);
ephyrPreparePipelinedAccess(pSrc, EXA_PREPARE_SRC);
fakexa->pSrc = pSrc;
fakexa->pDst = pDst;
fakexa->pGC = GetScratchGC(pDst->drawable.depth, pScreen);
tmpval[0] = alu;
tmpval[1] = pm;
ChangeGC (fakexa->pGC, GCFunction | GCPlaneMask, tmpval);
ValidateGC(&pDst->drawable, fakexa->pGC);
TRACE_DRAW();
return TRUE;
}
/**
* Saves off the parameters for ephyrComposite.
*/
static Bool
ephyrPrepareComposite(int op, PicturePtr pSrcPicture, PicturePtr pMaskPicture,
PicturePtr pDstPicture, PixmapPtr pSrc, PixmapPtr pMask,
PixmapPtr pDst)
{
KdScreenPriv(pDst->drawable.pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
EphyrFakexaPriv *fakexa = scrpriv->fakexa;
ephyrPreparePipelinedAccess(pDst, EXA_PREPARE_DEST);
ephyrPreparePipelinedAccess(pSrc, EXA_PREPARE_SRC);
if (pMask != NULL)
ephyrPreparePipelinedAccess(pMask, EXA_PREPARE_MASK);
fakexa->op = op;
fakexa->pSrcPicture = pSrcPicture;
fakexa->pMaskPicture = pMaskPicture;
fakexa->pDstPicture = pDstPicture;
fakexa->pSrc = pSrc;
fakexa->pMask = pMask;
fakexa->pDst = pDst;
TRACE_DRAW();
return TRUE;
}
void SkGLDevice::drawPath(const SkDraw& draw, const SkPath& path,
const SkPaint& paint) {
TRACE_DRAW("coreDrawPath", this, draw);
if (paint.getStyle() == SkPaint::kStroke_Style) {
return;
}
AutoPaintShader shader(this, paint);
SkGL::FillPath(path, paint, shader.useTex(), this->updateMatrixClip());
}
void SkGLDevice::drawSprite(const SkDraw& draw, const SkBitmap& bitmap,
int left, int top, const SkPaint& paint) {
TRACE_DRAW("coreDrawSprite", this, draw);
SkAutoLockPixels alp(bitmap);
if (!bitmap.readyToDraw()) {
return;
}
SkGLClipIter* iter = this->updateMatrixClip();
SkPoint max;
GLuint name;
SkAutoLockTexCache(bitmap, &name, &max);
gl_drawSprite(left, top, bitmap.width(), bitmap.height(), max, paint, iter);
}
void SkGLDevice::drawPoints(const SkDraw& draw, SkCanvas::PointMode mode,
size_t count, const SkPoint pts[], const SkPaint& paint) {
TRACE_DRAW("coreDrawPoints", this, draw);
SkScalar width = paint.getStrokeWidth();
if (width < 0) {
return;
}
/* We should really only use drawverts for hairlines, since gl and skia
treat the thickness differently...
*/
AutoPaintShader shader(this, paint);
if (width <= 0) {
width = SK_Scalar1;
}
if (SkCanvas::kPoints_PointMode == mode) {
glPointSize(SkScalarToFloat(width));
} else {
glLineWidth(SkScalarToFloat(width));
}
const SkGLVertex* verts;
#if GLSCALAR_IS_SCALAR
verts = (const SkGLVertex*)pts;
#else
SkAutoSTMalloc<32, SkGLVertex> storage(count);
SkGLVertex* v = storage.get();
v->setPoints(pts, count);
verts = v;
#endif
const SkGLVertex* texs = shader.useTex() ? verts : NULL;
SkGL::DrawVertices(count, gPointMode2GL[mode], verts, texs, NULL, NULL,
this->updateMatrixClip());
}
void SkGLDevice::drawDevice(const SkDraw& draw, SkDevice* dev,
int x, int y, const SkPaint& paint) {
TRACE_DRAW("coreDrawDevice", this, draw);
SkGLDevice::TexOrientation to = ((SkGLDevice*)dev)->bindDeviceAsTexture();
if (SkGLDevice::kNo_TexOrientation != to) {
SkGLClipIter* iter = this->updateMatrixClip();
const SkBitmap& bm = dev->accessBitmap(false);
int w = bm.width();
int h = bm.height();
SkPoint max;
max.set(SkFixedToScalar(w << (16 - SkNextLog2(bm.rowBytesAsPixels()))),
SkFixedToScalar(h << (16 - SkNextLog2(h))));
if (SkGLDevice::kBottomToTop_TexOrientation == to) {
h = -h;
}
gl_drawSprite(x, y, w, h, max, paint, iter);
}
}
void SkGLDevice::drawPaint(const SkDraw& draw, const SkPaint& paint) {
TRACE_DRAW("coreDrawPaint", this, draw);
AutoPaintShader shader(this, paint);
SkGLVertex vertex[4];
const SkGLVertex* texs = shader.useTex() ? vertex : NULL;
// set vert to be big enough to fill the space, but not super-huge, to we
// don't overflow fixed-point implementations
{
SkRect r;
r.set(this->clip().getBounds());
SkMatrix inverse;
if (draw.fMatrix->invert(&inverse)) {
inverse.mapRect(&r);
}
vertex->setRectFan(r);
}
SkGL::DrawVertices(4, GL_TRIANGLE_FAN, vertex, texs, NULL, NULL,
this->updateMatrixClip());
}
void SkGLDevice::drawBitmap(const SkDraw& draw, const SkBitmap& bitmap,
const SkMatrix& m, const SkPaint& paint) {
TRACE_DRAW("coreDrawBitmap", this, draw);
SkAutoLockPixels alp(bitmap);
if (!bitmap.readyToDraw()) {
return;
}
SkGLClipIter* iter = this->updateMatrixClip();
SkPoint max;
GLenum name;
SkAutoLockTexCache(bitmap, &name, &max);
// the lock has already called glBindTexture for us
SkGL::SetTexParamsClamp(paint.isFilterBitmap());
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
SkGL::MultMatrix(m);
SkGLVertex pts[4], tex[4];
pts->setIRectFan(0, 0, bitmap.width(), bitmap.height());
tex->setRectFan(0, 0, max.fX, max.fY);
// now draw the mesh
SkGL::SetPaintAlpha(paint);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
SkGL::DrawVertices(4, GL_TRIANGLE_FAN, pts, tex, NULL, NULL, iter);
glPopMatrix();
}
void SkGLDevice::drawRect(const SkDraw& draw, const SkRect& rect,
const SkPaint& paint) {
TRACE_DRAW("coreDrawRect", this, draw);
if (paint.getStyle() == SkPaint::kStroke_Style) {
return;
}
if (paint.getStrokeJoin() != SkPaint::kMiter_Join) {
SkPath path;
path.addRect(rect);
this->drawPath(draw, path, paint);
return;
}
AutoPaintShader shader(this, paint);
SkGLVertex vertex[4];
vertex->setRectFan(rect);
const SkGLVertex* texs = shader.useTex() ? vertex : NULL;
SkGL::DrawVertices(4, GL_TRIANGLE_FAN, vertex, texs, NULL, NULL,
this->updateMatrixClip());
}
