Java example source code file (D3DTextRenderer.cpp)
The D3DTextRenderer.cpp Java example source code
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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#include <malloc.h>
#include <math.h>
#include <jlong.h>
#include "sun_java2d_d3d_D3DTextRenderer.h"
#include "sun_java2d_pipe_BufferedTextPipe.h"
#include "SurfaceData.h"
#include "D3DContext.h"
#include "D3DSurfaceData.h"
#include "D3DRenderQueue.h"
#include "D3DTextRenderer.h"
#include "D3DGlyphCache.h"
#include "AccelGlyphCache.h"
#include "fontscalerdefs.h"
/**
* The current "glyph mode" state. This variable is used to track the
* codepath used to render a particular glyph. This variable is reset to
* MODE_NOT_INITED at the beginning of every call to D3DTR_DrawGlyphList().
* As each glyph is rendered, the glyphMode variable is updated to reflect
* the current mode, so if the current mode is the same as the mode used
* to render the previous glyph, we can avoid doing costly setup operations
* each time.
*/
typedef enum {
MODE_NOT_INITED,
MODE_USE_CACHE_GRAY,
MODE_USE_CACHE_LCD,
MODE_NO_CACHE_GRAY,
MODE_NO_CACHE_LCD
} GlyphMode;
static GlyphMode glyphMode = MODE_NOT_INITED;
/**
* The current bounds of the "cached destination" texture, in destination
* coordinate space. The width/height of these bounds will not exceed the
* D3DTR_CACHED_DEST_WIDTH/HEIGHT values defined above. These bounds are
* only considered valid when the isCachedDestValid flag is JNI_TRUE.
*/
static SurfaceDataBounds cachedDestBounds;
/**
* This flag indicates whether the "cached destination" texture contains
* valid data. This flag is reset to JNI_FALSE at the beginning of every
* call to D3DTR_DrawGlyphList(). Once we copy valid destination data
* into the cached texture, this flag is set to JNI_TRUE. This way, we
* can limit the number of times we need to copy destination data, which
* is a very costly operation.
*/
static jboolean isCachedDestValid = JNI_FALSE;
/**
* The bounds of the previously rendered LCD glyph, in destination
* coordinate space. We use these bounds to determine whether the glyph
* currently being rendered overlaps the previously rendered glyph (i.e.
* its bounding box intersects that of the previously rendered glyph).
* If so, we need to re-read the destination area associated with that
* previous glyph so that we can correctly blend with the actual
* destination data.
*/
static SurfaceDataBounds previousGlyphBounds;
/**
* Updates the gamma and inverse gamma values for the LCD text shader.
*/
static HRESULT
D3DTR_UpdateLCDTextContrast(D3DContext *d3dc, jint contrast)
{
HRESULT res;
IDirect3DDevice9 *pd3dDevice = d3dc->Get3DDevice();
jfloat fcon = ((jfloat)contrast) / 100.0f;
jfloat invgamma = fcon;
jfloat gamma = 1.0f / invgamma;
jfloat vals[4];
// update the "invgamma" parameter of the shader program
vals[0] = invgamma;
vals[1] = invgamma;
vals[2] = invgamma;
vals[3] = 0.0f; // unused
pd3dDevice->SetPixelShaderConstantF(1, vals, 1);
// update the "gamma" parameter of the shader program
vals[0] = gamma;
vals[1] = gamma;
vals[2] = gamma;
vals[3] = 0.0f; // unused
res = pd3dDevice->SetPixelShaderConstantF(2, vals, 1);
return res;
}
/**
* Updates the current gamma-adjusted source color ("src_adj") of the LCD
* text shader program. Note that we could calculate this value in the
* shader (e.g. just as we do for "dst_adj"), but would be unnecessary work
* (and a measurable performance hit, maybe around 5%) since this value is
* constant over the entire glyph list. So instead we just calculate the
* gamma-adjusted value once and update the uniform parameter of the LCD
* shader as needed.
*/
static HRESULT
D3DTR_UpdateLCDTextColor(D3DContext *d3dc, jint contrast)
{
IDirect3DDevice9 *pd3dDevice = d3dc->Get3DDevice();
jfloat gamma = ((jfloat)contrast) / 100.0f;
jfloat clr[4];
J2dTraceLn1(J2D_TRACE_INFO,
"D3DTR_UpdateLCDTextColor: contrast=%d", contrast);
/*
* Note: Ideally we would update the "srcAdj" uniform parameter only
* when there is a change in the source color. Fortunately, the cost
* of querying the current D3D color state and updating the uniform
* value is quite small, and in the common case we only need to do this
* once per GlyphList, so we gain little from trying to optimize too
* eagerly here.
*/
// get the current D3D primary color state
jint color = d3dc->pVCacher->GetColor();
clr[0] = (jfloat)((color >> 16) & 0xff) / 255.0f;
clr[1] = (jfloat)((color >> 8) & 0xff) / 255.0f;
clr[2] = (jfloat)((color >> 0) & 0xff) / 255.0f;
clr[3] = 0.0f; // unused
// gamma adjust the primary color
clr[0] = (jfloat)pow(clr[0], gamma);
clr[1] = (jfloat)pow(clr[1], gamma);
clr[2] = (jfloat)pow(clr[2], gamma);
// update the "srcAdj" parameter of the shader program with this value
return pd3dDevice->SetPixelShaderConstantF(0, clr, 1);
}
/**
* Enables the LCD text shader and updates any related state, such as the
* gamma values.
*/
static HRESULT
D3DTR_EnableLCDGlyphModeState(D3DContext *d3dc, D3DSDOps *dstOps,
jboolean useCache, jint contrast)
{
D3DResource *pGlyphTexRes, *pCachedDestTexRes;
IDirect3DTexture9 *pGlyphTex, *pCachedDestTex;
RETURN_STATUS_IF_NULL(dstOps->pResource, E_FAIL);
HRESULT res = S_OK;
if (useCache) {
// glyph cache had been already initialized
pGlyphTexRes = d3dc->GetLCDGlyphCache()->GetGlyphCacheTexture();
} else {
res = d3dc->GetResourceManager()->GetBlitTexture(&pGlyphTexRes);
}
RETURN_STATUS_IF_FAILED(res);
pGlyphTex = pGlyphTexRes->GetTexture();
res = d3dc->GetResourceManager()->
GetCachedDestTexture(dstOps->pResource->GetDesc()->Format,
&pCachedDestTexRes);
RETURN_STATUS_IF_FAILED(res);
pCachedDestTex = pCachedDestTexRes->GetTexture();
IDirect3DDevice9 *pd3dDevice = d3dc->Get3DDevice();
D3DTEXTUREFILTERTYPE fhint =
d3dc->IsTextureFilteringSupported(D3DTEXF_NONE) ?
D3DTEXF_NONE : D3DTEXF_POINT;
pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, fhint);
pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, fhint);
pd3dDevice->SetSamplerState(1, D3DSAMP_MAGFILTER, fhint);
pd3dDevice->SetSamplerState(1, D3DSAMP_MINFILTER, fhint);
d3dc->UpdateTextureColorState(D3DTA_TEXTURE, 1);
// bind the texture containing glyph data to texture unit 0
d3dc->SetTexture(pGlyphTex, 0);
// bind the texture tile containing destination data to texture unit 1
d3dc->SetTexture(pCachedDestTex, 1);
// create/enable the LCD text shader
res = d3dc->EnableLCDTextProgram();
RETURN_STATUS_IF_FAILED(res);
// update the current contrast settings (note: these change very rarely,
// but it seems that D3D pixel shader registers aren't maintained as
// part of the pixel shader instance, so we need to update these
// everytime around in case another shader blew away the contents
// of those registers)
D3DTR_UpdateLCDTextContrast(d3dc, contrast);
// update the current color settings
return D3DTR_UpdateLCDTextColor(d3dc, contrast);
}
HRESULT
D3DTR_EnableGlyphVertexCache(D3DContext *d3dc)
{
J2dTraceLn(J2D_TRACE_INFO, "D3DTR_EnableGlyphVertexCache");
IDirect3DDevice9 *pd3dDevice = d3dc->Get3DDevice();
D3DTEXTUREFILTERTYPE fhint =
d3dc->IsTextureFilteringSupported(D3DTEXF_NONE) ?
D3DTEXF_NONE : D3DTEXF_POINT;
pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, fhint);
pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, fhint);
// glyph cache had been successfully initialized if we got here
D3DResource *pGlyphCacheTexRes =
d3dc->GetGrayscaleGlyphCache()->GetGlyphCacheTexture();
return d3dc->SetTexture(pGlyphCacheTexRes->GetTexture(), 0);
}
HRESULT
D3DTR_DisableGlyphVertexCache(D3DContext *d3dc)
{
J2dTraceLn(J2D_TRACE_INFO, "D3DTR_DisableGlyphVertexCache");
return d3dc->SetTexture(NULL, 0);
}
/**
* Disables any pending state associated with the current "glyph mode".
*/
static HRESULT
D3DTR_DisableGlyphModeState(D3DContext *d3dc)
{
HRESULT res = S_OK;
IDirect3DDevice9 *pd3dDevice = d3dc->Get3DDevice();
switch (glyphMode) {
case MODE_NO_CACHE_LCD:
case MODE_USE_CACHE_LCD:
d3dc->FlushVertexQueue();
pd3dDevice->SetPixelShader(NULL);
res = d3dc->SetTexture(NULL, 1);
break;
case MODE_NO_CACHE_GRAY:
case MODE_USE_CACHE_GRAY:
case MODE_NOT_INITED:
default:
break;
}
return res;
}
static HRESULT
D3DTR_DrawGrayscaleGlyphViaCache(D3DContext *d3dc,
GlyphInfo *ginfo, jint x, jint y)
{
HRESULT res = S_OK;
D3DGlyphCache *pGrayscaleGCache;
CacheCellInfo *cell;
GlyphCacheInfo *gcache;
jfloat x1, y1, x2, y2;
J2dTraceLn(J2D_TRACE_VERBOSE, "D3DTR_DrawGrayscaleGlyphViaCache");
if (glyphMode != MODE_USE_CACHE_GRAY) {
D3DTR_DisableGlyphModeState(d3dc);
res = d3dc->BeginScene(STATE_GLYPHOP);
RETURN_STATUS_IF_FAILED(res);
glyphMode = MODE_USE_CACHE_GRAY;
}
pGrayscaleGCache = d3dc->GetGrayscaleGlyphCache();
gcache = pGrayscaleGCache->GetGlyphCache();
cell = AccelGlyphCache_GetCellInfoForCache(ginfo, gcache);
if (cell == NULL) {
// attempt to add glyph to accelerated glyph cache
res = pGrayscaleGCache->AddGlyph(ginfo);
RETURN_STATUS_IF_FAILED(res);
cell = AccelGlyphCache_GetCellInfoForCache(ginfo, gcache);
RETURN_STATUS_IF_NULL(cell, E_FAIL);
}
cell->timesRendered++;
x1 = (jfloat)x;
y1 = (jfloat)y;
x2 = x1 + ginfo->width;
y2 = y1 + ginfo->height;
return d3dc->pVCacher->DrawTexture(x1, y1, x2, y2,
cell->tx1, cell->ty1,
cell->tx2, cell->ty2);
}
/**
* Evaluates to true if the rectangle defined by gx1/gy1/gx2/gy2 is
* inside outerBounds.
*/
#define INSIDE(gx1, gy1, gx2, gy2, outerBounds) \
(((gx1) >= outerBounds.x1) && ((gy1) >= outerBounds.y1) && \
((gx2) <= outerBounds.x2) && ((gy2) <= outerBounds.y2))
/**
* Evaluates to true if the rectangle defined by gx1/gy1/gx2/gy2 intersects
* the rectangle defined by bounds.
*/
#define INTERSECTS(gx1, gy1, gx2, gy2, bounds) \
((bounds.x2 > (gx1)) && (bounds.y2 > (gy1)) && \
(bounds.x1 < (gx2)) && (bounds.y1 < (gy2)))
/**
* This method checks to see if the given LCD glyph bounds fall within the
* cached destination texture bounds. If so, this method can return
* immediately. If not, this method will copy a chunk of framebuffer data
* into the cached destination texture and then update the current cached
* destination bounds before returning.
*
* The agx1, agx2 are "adjusted" glyph bounds, which are only used when checking
* against the previous glyph bounds.
*/
static HRESULT
D3DTR_UpdateCachedDestination(D3DContext *d3dc, D3DSDOps *dstOps,
GlyphInfo *ginfo,
jint gx1, jint gy1, jint gx2, jint gy2,
jint agx1, jint agx2,
jint glyphIndex, jint totalGlyphs)
{
jint dx1, dy1, dx2, dy2;
D3DResource *pCachedDestTexRes;
IDirect3DSurface9 *pCachedDestSurface, *pDst;
HRESULT res;
if (isCachedDestValid && INSIDE(gx1, gy1, gx2, gy2, cachedDestBounds)) {
// glyph is already within the cached destination bounds; no need
// to read back the entire destination region again, but we do
// need to see if the current glyph overlaps the previous glyph...
// only use the "adjusted" glyph bounds when checking against
// previous glyph's bounds
gx1 = agx1;
gx2 = agx2;
if (INTERSECTS(gx1, gy1, gx2, gy2, previousGlyphBounds)) {
// the current glyph overlaps the destination region touched
// by the previous glyph, so now we need to read back the part
// of the destination corresponding to the previous glyph
dx1 = previousGlyphBounds.x1;
dy1 = previousGlyphBounds.y1;
dx2 = previousGlyphBounds.x2;
dy2 = previousGlyphBounds.y2;
// REMIND: make sure we flush any pending primitives that are
// dependent on the current contents of the cached dest
d3dc->FlushVertexQueue();
RETURN_STATUS_IF_NULL(dstOps->pResource, E_FAIL);
RETURN_STATUS_IF_NULL(pDst = dstOps->pResource->GetSurface(),
E_FAIL);
res = d3dc->GetResourceManager()->
GetCachedDestTexture(dstOps->pResource->GetDesc()->Format,
&pCachedDestTexRes);
RETURN_STATUS_IF_FAILED(res);
pCachedDestSurface = pCachedDestTexRes->GetSurface();
// now dxy12 represent the "desired" destination bounds, but the
// StretchRect() call may fail if these fall outside the actual
// surface bounds; therefore, we use cxy12 to represent the
// clamped bounds, and dxy12 are saved for later
jint cx1 = (dx1 < 0) ? 0 : dx1;
jint cy1 = (dy1 < 0) ? 0 : dy1;
jint cx2 = (dx2 > dstOps->width) ? dstOps->width : dx2;
jint cy2 = (dy2 > dstOps->height) ? dstOps->height : dy2;
if (cx2 > cx1 && cy2 > cy1) {
// copy destination into subregion of cached texture tile
// cx1-cachedDestBounds.x1 == +xoffset from left of texture
// cy1-cachedDestBounds.y1 == +yoffset from top of texture
// cx2-cachedDestBounds.x1 == +xoffset from left of texture
// cy2-cachedDestBounds.y1 == +yoffset from top of texture
jint cdx1 = cx1-cachedDestBounds.x1;
jint cdy1 = cy1-cachedDestBounds.y1;
jint cdx2 = cx2-cachedDestBounds.x1;
jint cdy2 = cy2-cachedDestBounds.y1;
RECT srcRect = { cx1, cy1, cx2, cy2 };
RECT dstRect = { cdx1, cdy1, cdx2, cdy2 };
IDirect3DDevice9 *pd3dDevice = d3dc->Get3DDevice();
res = pd3dDevice->StretchRect(pDst, &srcRect,
pCachedDestSurface, &dstRect,
D3DTEXF_NONE);
}
}
} else {
// destination region is not valid, so we need to read back a
// chunk of the destination into our cached texture
// position the upper-left corner of the destination region on the
// "top" line of glyph list
// REMIND: this isn't ideal; it would be better if we had some idea
// of the bounding box of the whole glyph list (this is
// do-able, but would require iterating through the whole
// list up front, which may present its own problems)
dx1 = gx1;
dy1 = gy1;
jint remainingWidth;
if (ginfo->advanceX > 0) {
// estimate the width based on our current position in the glyph
// list and using the x advance of the current glyph (this is just
// a quick and dirty heuristic; if this is a "thin" glyph image,
// then we're likely to underestimate, and if it's "thick" then we
// may end up reading back more than we need to)
remainingWidth =
(jint)(ginfo->advanceX * (totalGlyphs - glyphIndex));
if (remainingWidth > D3DTR_CACHED_DEST_WIDTH) {
remainingWidth = D3DTR_CACHED_DEST_WIDTH;
} else if (remainingWidth < ginfo->width) {
// in some cases, the x-advance may be slightly smaller
// than the actual width of the glyph; if so, adjust our
// estimate so that we can accommodate the entire glyph
remainingWidth = ginfo->width;
}
} else {
// a negative advance is possible when rendering rotated text,
// in which case it is difficult to estimate an appropriate
// region for readback, so we will pick a region that
// encompasses just the current glyph
remainingWidth = ginfo->width;
}
dx2 = dx1 + remainingWidth;
// estimate the height (this is another sloppy heuristic; we'll
// make the cached destination region tall enough to encompass most
// glyphs that are small enough to fit in the glyph cache, and then
// we add a little something extra to account for descenders
dy2 = dy1 + D3DTR_CACHE_CELL_HEIGHT + 2;
// REMIND: make sure we flush any pending primitives that are
// dependent on the current contents of the cached dest
d3dc->FlushVertexQueue();
RETURN_STATUS_IF_NULL(dstOps->pResource, E_FAIL);
RETURN_STATUS_IF_NULL(pDst = dstOps->pResource->GetSurface(), E_FAIL);
res = d3dc->GetResourceManager()->
GetCachedDestTexture(dstOps->pResource->GetDesc()->Format,
&pCachedDestTexRes);
RETURN_STATUS_IF_FAILED(res);
pCachedDestSurface = pCachedDestTexRes->GetSurface();
// now dxy12 represent the "desired" destination bounds, but the
// StretchRect() call may fail if these fall outside the actual
// surface bounds; therefore, we use cxy12 to represent the
// clamped bounds, and dxy12 are saved for later
jint cx1 = (dx1 < 0) ? 0 : dx1;
jint cy1 = (dy1 < 0) ? 0 : dy1;
jint cx2 = (dx2 > dstOps->width) ? dstOps->width : dx2;
jint cy2 = (dy2 > dstOps->height) ? dstOps->height : dy2;
if (cx2 > cx1 && cy2 > cy1) {
// copy destination into cached texture tile (the upper-left
// corner of the destination region will be positioned at the
// upper-left corner (0,0) of the texture)
RECT srcRect = { cx1, cy1, cx2, cy2 };
RECT dstRect = { cx1-dx1, cy1-dy1, cx2-dx1, cy2-dy1 };
IDirect3DDevice9 *pd3dDevice = d3dc->Get3DDevice();
res = pd3dDevice->StretchRect(pDst, &srcRect,
pCachedDestSurface, &dstRect,
D3DTEXF_NONE);
}
// update the cached bounds and mark it valid
cachedDestBounds.x1 = dx1;
cachedDestBounds.y1 = dy1;
cachedDestBounds.x2 = dx2;
cachedDestBounds.y2 = dy2;
isCachedDestValid = JNI_TRUE;
}
// always update the previous glyph bounds
previousGlyphBounds.x1 = gx1;
previousGlyphBounds.y1 = gy1;
previousGlyphBounds.x2 = gx2;
previousGlyphBounds.y2 = gy2;
return res;
}
static HRESULT
D3DTR_DrawLCDGlyphViaCache(D3DContext *d3dc, D3DSDOps *dstOps,
GlyphInfo *ginfo, jint x, jint y,
jint glyphIndex, jint totalGlyphs,
jboolean rgbOrder, jint contrast)
{
HRESULT res;
D3DGlyphCache *pLCDGCache;
CacheCellInfo *cell;
GlyphCacheInfo *gcache;
jint dx1, dy1, dx2, dy2;
jfloat dtx1, dty1, dtx2, dty2;
J2dTraceLn(J2D_TRACE_VERBOSE, "D3DTR_DrawLCDGlyphViaCache");
// the glyph cache is initialized before this method is called
pLCDGCache = d3dc->GetLCDGlyphCache();
if (glyphMode != MODE_USE_CACHE_LCD) {
D3DTR_DisableGlyphModeState(d3dc);
res = d3dc->BeginScene(STATE_TEXTUREOP);
RETURN_STATUS_IF_FAILED(res);
pLCDGCache->CheckGlyphCacheByteOrder(rgbOrder);
res = D3DTR_EnableLCDGlyphModeState(d3dc, dstOps, JNI_TRUE, contrast);
RETURN_STATUS_IF_FAILED(res);
glyphMode = MODE_USE_CACHE_LCD;
}
gcache = pLCDGCache->GetGlyphCache();
cell = AccelGlyphCache_GetCellInfoForCache(ginfo, gcache);
if (cell == NULL) {
// attempt to add glyph to accelerated glyph cache
res = pLCDGCache->AddGlyph(ginfo);
RETURN_STATUS_IF_FAILED(res);
// we'll just no-op in the rare case that the cell is NULL
cell = AccelGlyphCache_GetCellInfoForCache(ginfo, gcache);
RETURN_STATUS_IF_NULL(cell, E_FAIL);
}
cell->timesRendered++;
// location of the glyph in the destination's coordinate space
dx1 = x;
dy1 = y;
dx2 = dx1 + ginfo->width;
dy2 = dy1 + ginfo->height;
// copy destination into second cached texture, if necessary
D3DTR_UpdateCachedDestination(d3dc,
dstOps, ginfo,
dx1, dy1,
dx2, dy2,
dx1 + cell->leftOff, // adjusted dx1
dx2 + cell->rightOff, // adjusted dx2
glyphIndex, totalGlyphs);
// texture coordinates of the destination tile
dtx1 = ((jfloat)(dx1 - cachedDestBounds.x1)) / D3DTR_CACHED_DEST_WIDTH;
dty1 = ((jfloat)(dy1 - cachedDestBounds.y1)) / D3DTR_CACHED_DEST_HEIGHT;
dtx2 = ((jfloat)(dx2 - cachedDestBounds.x1)) / D3DTR_CACHED_DEST_WIDTH;
dty2 = ((jfloat)(dy2 - cachedDestBounds.y1)) / D3DTR_CACHED_DEST_HEIGHT;
// render composed texture to the destination surface
return d3dc->pVCacher->DrawTexture((jfloat)dx1, (jfloat)dy1,
(jfloat)dx2, (jfloat)dy2,
cell->tx1, cell->ty1,
cell->tx2, cell->ty2,
dtx1, dty1, dtx2, dty2);
}
static HRESULT
D3DTR_DrawGrayscaleGlyphNoCache(D3DContext *d3dc,
GlyphInfo *ginfo, jint x, jint y)
{
jint tw, th;
jint sx, sy, sw, sh;
jint x0;
jint w = ginfo->width;
jint h = ginfo->height;
HRESULT res = S_OK;
J2dTraceLn(J2D_TRACE_VERBOSE, "D3DTR_DrawGrayscaleGlyphNoCache");
if (glyphMode != MODE_NO_CACHE_GRAY) {
D3DTR_DisableGlyphModeState(d3dc);
res = d3dc->BeginScene(STATE_MASKOP);
RETURN_STATUS_IF_FAILED(res);
glyphMode = MODE_NO_CACHE_GRAY;
}
x0 = x;
tw = D3D_MASK_CACHE_TILE_WIDTH;
th = D3D_MASK_CACHE_TILE_HEIGHT;
for (sy = 0; sy < h; sy += th, y += th) {
x = x0;
sh = ((sy + th) > h) ? (h - sy) : th;
for (sx = 0; sx < w; sx += tw, x += tw) {
sw = ((sx + tw) > w) ? (w - sx) : tw;
res = d3dc->GetMaskCache()->AddMaskQuad(sx, sy, x, y, sw, sh,
w, ginfo->image);
}
}
return res;
}
static HRESULT
D3DTR_DrawLCDGlyphNoCache(D3DContext *d3dc, D3DSDOps *dstOps,
GlyphInfo *ginfo, jint x, jint y,
jint rowBytesOffset,
jboolean rgbOrder, jint contrast)
{
jfloat tx1, ty1, tx2, ty2;
jfloat dx1, dy1, dx2, dy2;
jfloat dtx1, dty1, dtx2, dty2;
jint tw, th;
jint sx, sy, sw, sh;
jint cx1, cy1, cx2, cy2;
jint x0;
jint w = ginfo->width;
jint h = ginfo->height;
TileFormat tileFormat = rgbOrder ? TILEFMT_3BYTE_RGB : TILEFMT_3BYTE_BGR;
IDirect3DDevice9 *pd3dDevice = d3dc->Get3DDevice();
D3DResource *pBlitTextureRes, *pCachedDestTextureRes;
IDirect3DTexture9 *pBlitTexture;
IDirect3DSurface9 *pCachedDestSurface, *pDst;
HRESULT res;
J2dTraceLn(J2D_TRACE_VERBOSE, "D3DTR_DrawLCDGlyphNoCache");
RETURN_STATUS_IF_NULL(dstOps->pResource, E_FAIL);
RETURN_STATUS_IF_NULL(pDst = dstOps->pResource->GetSurface(), E_FAIL);
res = d3dc->GetResourceManager()->GetBlitTexture(&pBlitTextureRes);
RETURN_STATUS_IF_FAILED(res);
res = d3dc->GetResourceManager()->
GetCachedDestTexture(dstOps->pResource->GetDesc()->Format,
&pCachedDestTextureRes);
RETURN_STATUS_IF_FAILED(res);
pBlitTexture = pBlitTextureRes->GetTexture();
pCachedDestSurface = pCachedDestTextureRes->GetSurface();
if (glyphMode != MODE_NO_CACHE_LCD) {
D3DTR_DisableGlyphModeState(d3dc);
res = d3dc->BeginScene(STATE_TEXTUREOP);
RETURN_STATUS_IF_FAILED(res);
res = D3DTR_EnableLCDGlyphModeState(d3dc,dstOps, JNI_FALSE, contrast);
RETURN_STATUS_IF_FAILED(res);
glyphMode = MODE_NO_CACHE_LCD;
}
x0 = x;
tx1 = 0.0f;
ty1 = 0.0f;
dtx1 = 0.0f;
dty1 = 0.0f;
tw = D3DTR_NOCACHE_TILE_SIZE;
th = D3DTR_NOCACHE_TILE_SIZE;
for (sy = 0; sy < h; sy += th, y += th) {
x = x0;
sh = ((sy + th) > h) ? (h - sy) : th;
for (sx = 0; sx < w; sx += tw, x += tw) {
sw = ((sx + tw) > w) ? (w - sx) : tw;
// calculate the bounds of the tile to be copied from the
// destination into the cached tile
cx1 = x;
cy1 = y;
cx2 = cx1 + sw;
cy2 = cy1 + sh;
// need to clamp to the destination bounds, otherwise the
// StretchRect() call may fail
if (cx1 < 0) cx1 = 0;
if (cy1 < 0) cy1 = 0;
if (cx2 > dstOps->width) cx2 = dstOps->width;
if (cy2 > dstOps->height) cy2 = dstOps->height;
if (cx2 > cx1 && cy2 > cy1) {
// copy LCD mask into glyph texture tile
d3dc->UploadTileToTexture(pBlitTextureRes,
ginfo->image+rowBytesOffset,
0, 0, sx, sy, sw, sh,
ginfo->rowBytes, tileFormat);
// update the lower-right glyph texture coordinates
tx2 = ((jfloat)sw) / D3DC_BLIT_TILE_SIZE;
ty2 = ((jfloat)sh) / D3DC_BLIT_TILE_SIZE;
// calculate the actual destination vertices
dx1 = (jfloat)x;
dy1 = (jfloat)y;
dx2 = dx1 + sw;
dy2 = dy1 + sh;
// copy destination into cached texture tile (the upper-left
// corner of the destination region will be positioned at the
// upper-left corner (0,0) of the texture)
RECT srcRect = { cx1, cy1, cx2, cy2 };
RECT dstRect = { cx1-x, cy1-y, cx2-x, cy2-y };
pd3dDevice->StretchRect(pDst, &srcRect,
pCachedDestSurface,
&dstRect,
D3DTEXF_NONE);
// update the remaining destination texture coordinates
dtx2 = ((jfloat)sw) / D3DTR_CACHED_DEST_WIDTH;
dty2 = ((jfloat)sh) / D3DTR_CACHED_DEST_HEIGHT;
// render composed texture to the destination surface
res = d3dc->pVCacher->DrawTexture( dx1, dy1, dx2, dy2,
tx1, ty1, tx2, ty2,
dtx1, dty1, dtx2, dty2);
// unfortunately we need to flush after each tile
d3dc->FlushVertexQueue();
}
}
}
return res;
}
// see DrawGlyphList.c for more on this macro...
#define FLOOR_ASSIGN(l, r) \
if ((r)<0) (l) = ((int)floor(r)); else (l) = ((int)(r))
HRESULT
D3DTR_DrawGlyphList(D3DContext *d3dc, D3DSDOps *dstOps,
jint totalGlyphs, jboolean usePositions,
jboolean subPixPos, jboolean rgbOrder, jint lcdContrast,
jfloat glyphListOrigX, jfloat glyphListOrigY,
unsigned char *images, unsigned char *positions)
{
int glyphCounter;
HRESULT res = S_OK;
J2dTraceLn(J2D_TRACE_INFO, "D3DTR_DrawGlyphList");
RETURN_STATUS_IF_NULL(d3dc, E_FAIL);
RETURN_STATUS_IF_NULL(d3dc->Get3DDevice(), E_FAIL);
RETURN_STATUS_IF_NULL(dstOps, E_FAIL);
RETURN_STATUS_IF_NULL(images, E_FAIL);
if (usePositions) {
RETURN_STATUS_IF_NULL(positions, E_FAIL);
}
glyphMode = MODE_NOT_INITED;
isCachedDestValid = JNI_FALSE;
for (glyphCounter = 0; glyphCounter < totalGlyphs; glyphCounter++) {
jint x, y;
jfloat glyphx, glyphy;
jboolean grayscale;
GlyphInfo *ginfo = (GlyphInfo *)jlong_to_ptr(NEXT_LONG(images));
if (ginfo == NULL) {
// this shouldn't happen, but if it does we'll just break out...
J2dRlsTraceLn(J2D_TRACE_ERROR,
"D3DTR_DrawGlyphList: glyph info is null");
break;
}
grayscale = (ginfo->rowBytes == ginfo->width);
if (usePositions) {
jfloat posx = NEXT_FLOAT(positions);
jfloat posy = NEXT_FLOAT(positions);
glyphx = glyphListOrigX + posx + ginfo->topLeftX;
glyphy = glyphListOrigY + posy + ginfo->topLeftY;
FLOOR_ASSIGN(x, glyphx);
FLOOR_ASSIGN(y, glyphy);
} else {
glyphx = glyphListOrigX + ginfo->topLeftX;
glyphy = glyphListOrigY + ginfo->topLeftY;
FLOOR_ASSIGN(x, glyphx);
FLOOR_ASSIGN(y, glyphy);
glyphListOrigX += ginfo->advanceX;
glyphListOrigY += ginfo->advanceY;
}
if (ginfo->image == NULL) {
continue;
}
if (grayscale) {
// grayscale or monochrome glyph data
if (ginfo->width <= D3DTR_CACHE_CELL_WIDTH &&
ginfo->height <= D3DTR_CACHE_CELL_HEIGHT &&
SUCCEEDED(d3dc->InitGrayscaleGlyphCache()))
{
res = D3DTR_DrawGrayscaleGlyphViaCache(d3dc, ginfo, x, y);
} else {
res = D3DTR_DrawGrayscaleGlyphNoCache(d3dc, ginfo, x, y);
}
} else {
// LCD-optimized glyph data
jint rowBytesOffset = 0;
if (subPixPos) {
jint frac = (jint)((glyphx - x) * 3);
if (frac != 0) {
rowBytesOffset = 3 - frac;
x += 1;
}
}
if (rowBytesOffset == 0 &&
ginfo->width <= D3DTR_CACHE_CELL_WIDTH &&
ginfo->height <= D3DTR_CACHE_CELL_HEIGHT &&
SUCCEEDED(d3dc->InitLCDGlyphCache()))
{
res = D3DTR_DrawLCDGlyphViaCache(d3dc, dstOps,
ginfo, x, y,
glyphCounter, totalGlyphs,
rgbOrder, lcdContrast);
} else {
res = D3DTR_DrawLCDGlyphNoCache(d3dc, dstOps,
ginfo, x, y,
rowBytesOffset,
rgbOrder, lcdContrast);
}
}
if (FAILED(res)) {
break;
}
}
D3DTR_DisableGlyphModeState(d3dc);
return res;
}
JNIEXPORT void JNICALL
Java_sun_java2d_d3d_D3DTextRenderer_drawGlyphList
(JNIEnv *env, jobject self,
jint numGlyphs, jboolean usePositions,
jboolean subPixPos, jboolean rgbOrder, jint lcdContrast,
jfloat glyphListOrigX, jfloat glyphListOrigY,
jlongArray imgArray, jfloatArray posArray)
{
unsigned char *images;
J2dTraceLn(J2D_TRACE_INFO, "D3DTextRenderer_drawGlyphList");
images = (unsigned char *)
env->GetPrimitiveArrayCritical(imgArray, NULL);
if (images != NULL) {
D3DContext *d3dc = D3DRQ_GetCurrentContext();
D3DSDOps *dstOps = D3DRQ_GetCurrentDestination();
if (usePositions) {
unsigned char *positions = (unsigned char *)
env->GetPrimitiveArrayCritical(posArray, NULL);
if (positions != NULL) {
D3DTR_DrawGlyphList(d3dc, dstOps,
numGlyphs, usePositions,
subPixPos, rgbOrder, lcdContrast,
glyphListOrigX, glyphListOrigY,
images, positions);
env->ReleasePrimitiveArrayCritical(posArray,
positions, JNI_ABORT);
}
} else {
D3DTR_DrawGlyphList(d3dc, dstOps,
numGlyphs, usePositions,
subPixPos, rgbOrder, lcdContrast,
glyphListOrigX, glyphListOrigY,
images, NULL);
}
// reset current state, and ensure rendering is flushed to dest
if (d3dc != NULL) {
d3dc->FlushVertexQueue();
}
env->ReleasePrimitiveArrayCritical(imgArray,
images, JNI_ABORT);
}
}
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