src/java.desktop/share/native/common/java2d/opengl/OGLRenderQueue.c
changeset 47216 71c04702a3d5
parent 26751 70bac69b37c9
child 56230 489867818774
child 58324 0aba35254e00
equal deleted inserted replaced
47215:4ebc2e2fb97c 47216:71c04702a3d5
       
     1 /*
       
     2  * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
       
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       
     4  *
       
     5  * This code is free software; you can redistribute it and/or modify it
       
     6  * under the terms of the GNU General Public License version 2 only, as
       
     7  * published by the Free Software Foundation.  Oracle designates this
       
     8  * particular file as subject to the "Classpath" exception as provided
       
     9  * by Oracle in the LICENSE file that accompanied this code.
       
    10  *
       
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
       
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
       
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
       
    14  * version 2 for more details (a copy is included in the LICENSE file that
       
    15  * accompanied this code).
       
    16  *
       
    17  * You should have received a copy of the GNU General Public License version
       
    18  * 2 along with this work; if not, write to the Free Software Foundation,
       
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
       
    20  *
       
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
       
    22  * or visit www.oracle.com if you need additional information or have any
       
    23  * questions.
       
    24  */
       
    25 
       
    26 #ifndef HEADLESS
       
    27 
       
    28 #include <stdlib.h>
       
    29 
       
    30 #include "sun_java2d_pipe_BufferedOpCodes.h"
       
    31 
       
    32 #include "jlong.h"
       
    33 #include "OGLBlitLoops.h"
       
    34 #include "OGLBufImgOps.h"
       
    35 #include "OGLContext.h"
       
    36 #include "OGLMaskBlit.h"
       
    37 #include "OGLMaskFill.h"
       
    38 #include "OGLPaints.h"
       
    39 #include "OGLRenderQueue.h"
       
    40 #include "OGLRenderer.h"
       
    41 #include "OGLSurfaceData.h"
       
    42 #include "OGLTextRenderer.h"
       
    43 #include "OGLVertexCache.h"
       
    44 
       
    45 /**
       
    46  * Used to track whether we are in a series of a simple primitive operations
       
    47  * or texturing operations.  This variable should be controlled only via
       
    48  * the INIT/CHECK/RESET_PREVIOUS_OP() macros.  See the
       
    49  * OGLRenderQueue_CheckPreviousOp() method below for more information.
       
    50  */
       
    51 jint previousOp;
       
    52 
       
    53 /**
       
    54  * References to the "current" context and destination surface.
       
    55  */
       
    56 static OGLContext *oglc = NULL;
       
    57 static OGLSDOps *dstOps = NULL;
       
    58 
       
    59 /**
       
    60  * The following methods are implemented in the windowing system (i.e. GLX
       
    61  * and WGL) source files.
       
    62  */
       
    63 extern OGLContext *OGLSD_SetScratchSurface(JNIEnv *env, jlong pConfigInfo);
       
    64 extern void OGLGC_DestroyOGLGraphicsConfig(jlong pConfigInfo);
       
    65 extern void OGLSD_SwapBuffers(JNIEnv *env, jlong window);
       
    66 extern void OGLSD_Flush(JNIEnv *env);
       
    67 
       
    68 JNIEXPORT void JNICALL
       
    69 Java_sun_java2d_opengl_OGLRenderQueue_flushBuffer
       
    70     (JNIEnv *env, jobject oglrq,
       
    71      jlong buf, jint limit)
       
    72 {
       
    73     jboolean sync = JNI_FALSE;
       
    74     unsigned char *b, *end;
       
    75 
       
    76     J2dTraceLn1(J2D_TRACE_INFO,
       
    77                 "OGLRenderQueue_flushBuffer: limit=%d", limit);
       
    78 
       
    79     b = (unsigned char *)jlong_to_ptr(buf);
       
    80     if (b == NULL) {
       
    81         J2dRlsTraceLn(J2D_TRACE_ERROR,
       
    82             "OGLRenderQueue_flushBuffer: cannot get direct buffer address");
       
    83         return;
       
    84     }
       
    85 
       
    86     INIT_PREVIOUS_OP();
       
    87     end = b + limit;
       
    88 
       
    89     while (b < end) {
       
    90         jint opcode = NEXT_INT(b);
       
    91 
       
    92         J2dTraceLn2(J2D_TRACE_VERBOSE,
       
    93                     "OGLRenderQueue_flushBuffer: opcode=%d, rem=%d",
       
    94                     opcode, (end-b));
       
    95 
       
    96         switch (opcode) {
       
    97 
       
    98         // draw ops
       
    99         case sun_java2d_pipe_BufferedOpCodes_DRAW_LINE:
       
   100             {
       
   101                 jint x1 = NEXT_INT(b);
       
   102                 jint y1 = NEXT_INT(b);
       
   103                 jint x2 = NEXT_INT(b);
       
   104                 jint y2 = NEXT_INT(b);
       
   105                 OGLRenderer_DrawLine(oglc, x1, y1, x2, y2);
       
   106             }
       
   107             break;
       
   108         case sun_java2d_pipe_BufferedOpCodes_DRAW_RECT:
       
   109             {
       
   110                 jint x = NEXT_INT(b);
       
   111                 jint y = NEXT_INT(b);
       
   112                 jint w = NEXT_INT(b);
       
   113                 jint h = NEXT_INT(b);
       
   114                 OGLRenderer_DrawRect(oglc, x, y, w, h);
       
   115             }
       
   116             break;
       
   117         case sun_java2d_pipe_BufferedOpCodes_DRAW_POLY:
       
   118             {
       
   119                 jint nPoints      = NEXT_INT(b);
       
   120                 jboolean isClosed = NEXT_BOOLEAN(b);
       
   121                 jint transX       = NEXT_INT(b);
       
   122                 jint transY       = NEXT_INT(b);
       
   123                 jint *xPoints = (jint *)b;
       
   124                 jint *yPoints = ((jint *)b) + nPoints;
       
   125                 OGLRenderer_DrawPoly(oglc, nPoints, isClosed,
       
   126                                      transX, transY,
       
   127                                      xPoints, yPoints);
       
   128                 SKIP_BYTES(b, nPoints * BYTES_PER_POLY_POINT);
       
   129             }
       
   130             break;
       
   131         case sun_java2d_pipe_BufferedOpCodes_DRAW_PIXEL:
       
   132             {
       
   133                 jint x = NEXT_INT(b);
       
   134                 jint y = NEXT_INT(b);
       
   135                 // Note that we could use GL_POINTS here, but the common
       
   136                 // use case for DRAW_PIXEL is when rendering a Path2D,
       
   137                 // which will consist of a mix of DRAW_PIXEL and DRAW_LINE
       
   138                 // calls.  So to improve batching we use GL_LINES here,
       
   139                 // even though it requires an extra vertex per pixel.
       
   140                 CONTINUE_IF_NULL(oglc);
       
   141                 CHECK_PREVIOUS_OP(GL_LINES);
       
   142                 j2d_glVertex2i(x, y);
       
   143                 j2d_glVertex2i(x+1, y+1);
       
   144             }
       
   145             break;
       
   146         case sun_java2d_pipe_BufferedOpCodes_DRAW_SCANLINES:
       
   147             {
       
   148                 jint count = NEXT_INT(b);
       
   149                 OGLRenderer_DrawScanlines(oglc, count, (jint *)b);
       
   150                 SKIP_BYTES(b, count * BYTES_PER_SCANLINE);
       
   151             }
       
   152             break;
       
   153         case sun_java2d_pipe_BufferedOpCodes_DRAW_PARALLELOGRAM:
       
   154             {
       
   155                 jfloat x11 = NEXT_FLOAT(b);
       
   156                 jfloat y11 = NEXT_FLOAT(b);
       
   157                 jfloat dx21 = NEXT_FLOAT(b);
       
   158                 jfloat dy21 = NEXT_FLOAT(b);
       
   159                 jfloat dx12 = NEXT_FLOAT(b);
       
   160                 jfloat dy12 = NEXT_FLOAT(b);
       
   161                 jfloat lwr21 = NEXT_FLOAT(b);
       
   162                 jfloat lwr12 = NEXT_FLOAT(b);
       
   163                 OGLRenderer_DrawParallelogram(oglc,
       
   164                                               x11, y11,
       
   165                                               dx21, dy21,
       
   166                                               dx12, dy12,
       
   167                                               lwr21, lwr12);
       
   168             }
       
   169             break;
       
   170         case sun_java2d_pipe_BufferedOpCodes_DRAW_AAPARALLELOGRAM:
       
   171             {
       
   172                 jfloat x11 = NEXT_FLOAT(b);
       
   173                 jfloat y11 = NEXT_FLOAT(b);
       
   174                 jfloat dx21 = NEXT_FLOAT(b);
       
   175                 jfloat dy21 = NEXT_FLOAT(b);
       
   176                 jfloat dx12 = NEXT_FLOAT(b);
       
   177                 jfloat dy12 = NEXT_FLOAT(b);
       
   178                 jfloat lwr21 = NEXT_FLOAT(b);
       
   179                 jfloat lwr12 = NEXT_FLOAT(b);
       
   180                 OGLRenderer_DrawAAParallelogram(oglc, dstOps,
       
   181                                                 x11, y11,
       
   182                                                 dx21, dy21,
       
   183                                                 dx12, dy12,
       
   184                                                 lwr21, lwr12);
       
   185             }
       
   186             break;
       
   187 
       
   188         // fill ops
       
   189         case sun_java2d_pipe_BufferedOpCodes_FILL_RECT:
       
   190             {
       
   191                 jint x = NEXT_INT(b);
       
   192                 jint y = NEXT_INT(b);
       
   193                 jint w = NEXT_INT(b);
       
   194                 jint h = NEXT_INT(b);
       
   195                 OGLRenderer_FillRect(oglc, x, y, w, h);
       
   196             }
       
   197             break;
       
   198         case sun_java2d_pipe_BufferedOpCodes_FILL_SPANS:
       
   199             {
       
   200                 jint count = NEXT_INT(b);
       
   201                 OGLRenderer_FillSpans(oglc, count, (jint *)b);
       
   202                 SKIP_BYTES(b, count * BYTES_PER_SPAN);
       
   203             }
       
   204             break;
       
   205         case sun_java2d_pipe_BufferedOpCodes_FILL_PARALLELOGRAM:
       
   206             {
       
   207                 jfloat x11 = NEXT_FLOAT(b);
       
   208                 jfloat y11 = NEXT_FLOAT(b);
       
   209                 jfloat dx21 = NEXT_FLOAT(b);
       
   210                 jfloat dy21 = NEXT_FLOAT(b);
       
   211                 jfloat dx12 = NEXT_FLOAT(b);
       
   212                 jfloat dy12 = NEXT_FLOAT(b);
       
   213                 OGLRenderer_FillParallelogram(oglc,
       
   214                                               x11, y11,
       
   215                                               dx21, dy21,
       
   216                                               dx12, dy12);
       
   217             }
       
   218             break;
       
   219         case sun_java2d_pipe_BufferedOpCodes_FILL_AAPARALLELOGRAM:
       
   220             {
       
   221                 jfloat x11 = NEXT_FLOAT(b);
       
   222                 jfloat y11 = NEXT_FLOAT(b);
       
   223                 jfloat dx21 = NEXT_FLOAT(b);
       
   224                 jfloat dy21 = NEXT_FLOAT(b);
       
   225                 jfloat dx12 = NEXT_FLOAT(b);
       
   226                 jfloat dy12 = NEXT_FLOAT(b);
       
   227                 OGLRenderer_FillAAParallelogram(oglc, dstOps,
       
   228                                                 x11, y11,
       
   229                                                 dx21, dy21,
       
   230                                                 dx12, dy12);
       
   231             }
       
   232             break;
       
   233 
       
   234         // text-related ops
       
   235         case sun_java2d_pipe_BufferedOpCodes_DRAW_GLYPH_LIST:
       
   236             {
       
   237                 jint numGlyphs        = NEXT_INT(b);
       
   238                 jint packedParams     = NEXT_INT(b);
       
   239                 jfloat glyphListOrigX = NEXT_FLOAT(b);
       
   240                 jfloat glyphListOrigY = NEXT_FLOAT(b);
       
   241                 jboolean usePositions = EXTRACT_BOOLEAN(packedParams,
       
   242                                                         OFFSET_POSITIONS);
       
   243                 jboolean subPixPos    = EXTRACT_BOOLEAN(packedParams,
       
   244                                                         OFFSET_SUBPIXPOS);
       
   245                 jboolean rgbOrder     = EXTRACT_BOOLEAN(packedParams,
       
   246                                                         OFFSET_RGBORDER);
       
   247                 jint lcdContrast      = EXTRACT_BYTE(packedParams,
       
   248                                                      OFFSET_CONTRAST);
       
   249                 unsigned char *images = b;
       
   250                 unsigned char *positions;
       
   251                 jint bytesPerGlyph;
       
   252                 if (usePositions) {
       
   253                     positions = (b + numGlyphs * BYTES_PER_GLYPH_IMAGE);
       
   254                     bytesPerGlyph = BYTES_PER_POSITIONED_GLYPH;
       
   255                 } else {
       
   256                     positions = NULL;
       
   257                     bytesPerGlyph = BYTES_PER_GLYPH_IMAGE;
       
   258                 }
       
   259                 OGLTR_DrawGlyphList(env, oglc, dstOps,
       
   260                                     numGlyphs, usePositions,
       
   261                                     subPixPos, rgbOrder, lcdContrast,
       
   262                                     glyphListOrigX, glyphListOrigY,
       
   263                                     images, positions);
       
   264                 SKIP_BYTES(b, numGlyphs * bytesPerGlyph);
       
   265             }
       
   266             break;
       
   267 
       
   268         // copy-related ops
       
   269         case sun_java2d_pipe_BufferedOpCodes_COPY_AREA:
       
   270             {
       
   271                 jint x  = NEXT_INT(b);
       
   272                 jint y  = NEXT_INT(b);
       
   273                 jint w  = NEXT_INT(b);
       
   274                 jint h  = NEXT_INT(b);
       
   275                 jint dx = NEXT_INT(b);
       
   276                 jint dy = NEXT_INT(b);
       
   277                 OGLBlitLoops_CopyArea(env, oglc, dstOps,
       
   278                                       x, y, w, h, dx, dy);
       
   279             }
       
   280             break;
       
   281         case sun_java2d_pipe_BufferedOpCodes_BLIT:
       
   282             {
       
   283                 jint packedParams = NEXT_INT(b);
       
   284                 jint sx1          = NEXT_INT(b);
       
   285                 jint sy1          = NEXT_INT(b);
       
   286                 jint sx2          = NEXT_INT(b);
       
   287                 jint sy2          = NEXT_INT(b);
       
   288                 jdouble dx1       = NEXT_DOUBLE(b);
       
   289                 jdouble dy1       = NEXT_DOUBLE(b);
       
   290                 jdouble dx2       = NEXT_DOUBLE(b);
       
   291                 jdouble dy2       = NEXT_DOUBLE(b);
       
   292                 jlong pSrc        = NEXT_LONG(b);
       
   293                 jlong pDst        = NEXT_LONG(b);
       
   294                 jint hint         = EXTRACT_BYTE(packedParams, OFFSET_HINT);
       
   295                 jboolean texture  = EXTRACT_BOOLEAN(packedParams,
       
   296                                                     OFFSET_TEXTURE);
       
   297                 jboolean rtt      = EXTRACT_BOOLEAN(packedParams,
       
   298                                                     OFFSET_RTT);
       
   299                 jboolean xform    = EXTRACT_BOOLEAN(packedParams,
       
   300                                                     OFFSET_XFORM);
       
   301                 jboolean isoblit  = EXTRACT_BOOLEAN(packedParams,
       
   302                                                     OFFSET_ISOBLIT);
       
   303                 if (isoblit) {
       
   304                     OGLBlitLoops_IsoBlit(env, oglc, pSrc, pDst,
       
   305                                          xform, hint, texture, rtt,
       
   306                                          sx1, sy1, sx2, sy2,
       
   307                                          dx1, dy1, dx2, dy2);
       
   308                 } else {
       
   309                     jint srctype = EXTRACT_BYTE(packedParams, OFFSET_SRCTYPE);
       
   310                     OGLBlitLoops_Blit(env, oglc, pSrc, pDst,
       
   311                                       xform, hint, srctype, texture,
       
   312                                       sx1, sy1, sx2, sy2,
       
   313                                       dx1, dy1, dx2, dy2);
       
   314                 }
       
   315             }
       
   316             break;
       
   317         case sun_java2d_pipe_BufferedOpCodes_SURFACE_TO_SW_BLIT:
       
   318             {
       
   319                 jint sx      = NEXT_INT(b);
       
   320                 jint sy      = NEXT_INT(b);
       
   321                 jint dx      = NEXT_INT(b);
       
   322                 jint dy      = NEXT_INT(b);
       
   323                 jint w       = NEXT_INT(b);
       
   324                 jint h       = NEXT_INT(b);
       
   325                 jint dsttype = NEXT_INT(b);
       
   326                 jlong pSrc   = NEXT_LONG(b);
       
   327                 jlong pDst   = NEXT_LONG(b);
       
   328                 OGLBlitLoops_SurfaceToSwBlit(env, oglc,
       
   329                                              pSrc, pDst, dsttype,
       
   330                                              sx, sy, dx, dy, w, h);
       
   331             }
       
   332             break;
       
   333         case sun_java2d_pipe_BufferedOpCodes_MASK_FILL:
       
   334             {
       
   335                 jint x        = NEXT_INT(b);
       
   336                 jint y        = NEXT_INT(b);
       
   337                 jint w        = NEXT_INT(b);
       
   338                 jint h        = NEXT_INT(b);
       
   339                 jint maskoff  = NEXT_INT(b);
       
   340                 jint maskscan = NEXT_INT(b);
       
   341                 jint masklen  = NEXT_INT(b);
       
   342                 unsigned char *pMask = (masklen > 0) ? b : NULL;
       
   343                 OGLMaskFill_MaskFill(oglc, x, y, w, h,
       
   344                                      maskoff, maskscan, masklen, pMask);
       
   345                 SKIP_BYTES(b, masklen);
       
   346             }
       
   347             break;
       
   348         case sun_java2d_pipe_BufferedOpCodes_MASK_BLIT:
       
   349             {
       
   350                 jint dstx     = NEXT_INT(b);
       
   351                 jint dsty     = NEXT_INT(b);
       
   352                 jint width    = NEXT_INT(b);
       
   353                 jint height   = NEXT_INT(b);
       
   354                 jint masklen  = width * height * sizeof(jint);
       
   355                 OGLMaskBlit_MaskBlit(env, oglc,
       
   356                                      dstx, dsty, width, height, b);
       
   357                 SKIP_BYTES(b, masklen);
       
   358             }
       
   359             break;
       
   360 
       
   361         // state-related ops
       
   362         case sun_java2d_pipe_BufferedOpCodes_SET_RECT_CLIP:
       
   363             {
       
   364                 jint x1 = NEXT_INT(b);
       
   365                 jint y1 = NEXT_INT(b);
       
   366                 jint x2 = NEXT_INT(b);
       
   367                 jint y2 = NEXT_INT(b);
       
   368                 OGLContext_SetRectClip(oglc, dstOps, x1, y1, x2, y2);
       
   369             }
       
   370             break;
       
   371         case sun_java2d_pipe_BufferedOpCodes_BEGIN_SHAPE_CLIP:
       
   372             {
       
   373                 OGLContext_BeginShapeClip(oglc);
       
   374             }
       
   375             break;
       
   376         case sun_java2d_pipe_BufferedOpCodes_SET_SHAPE_CLIP_SPANS:
       
   377             {
       
   378                 jint count = NEXT_INT(b);
       
   379                 OGLRenderer_FillSpans(oglc, count, (jint *)b);
       
   380                 SKIP_BYTES(b, count * BYTES_PER_SPAN);
       
   381             }
       
   382             break;
       
   383         case sun_java2d_pipe_BufferedOpCodes_END_SHAPE_CLIP:
       
   384             {
       
   385                 OGLContext_EndShapeClip(oglc, dstOps);
       
   386             }
       
   387             break;
       
   388         case sun_java2d_pipe_BufferedOpCodes_RESET_CLIP:
       
   389             {
       
   390                 OGLContext_ResetClip(oglc);
       
   391             }
       
   392             break;
       
   393         case sun_java2d_pipe_BufferedOpCodes_SET_ALPHA_COMPOSITE:
       
   394             {
       
   395                 jint rule         = NEXT_INT(b);
       
   396                 jfloat extraAlpha = NEXT_FLOAT(b);
       
   397                 jint flags        = NEXT_INT(b);
       
   398                 OGLContext_SetAlphaComposite(oglc, rule, extraAlpha, flags);
       
   399             }
       
   400             break;
       
   401         case sun_java2d_pipe_BufferedOpCodes_SET_XOR_COMPOSITE:
       
   402             {
       
   403                 jint xorPixel = NEXT_INT(b);
       
   404                 OGLContext_SetXorComposite(oglc, xorPixel);
       
   405             }
       
   406             break;
       
   407         case sun_java2d_pipe_BufferedOpCodes_RESET_COMPOSITE:
       
   408             {
       
   409                 OGLContext_ResetComposite(oglc);
       
   410             }
       
   411             break;
       
   412         case sun_java2d_pipe_BufferedOpCodes_SET_TRANSFORM:
       
   413             {
       
   414                 jdouble m00 = NEXT_DOUBLE(b);
       
   415                 jdouble m10 = NEXT_DOUBLE(b);
       
   416                 jdouble m01 = NEXT_DOUBLE(b);
       
   417                 jdouble m11 = NEXT_DOUBLE(b);
       
   418                 jdouble m02 = NEXT_DOUBLE(b);
       
   419                 jdouble m12 = NEXT_DOUBLE(b);
       
   420                 OGLContext_SetTransform(oglc, m00, m10, m01, m11, m02, m12);
       
   421             }
       
   422             break;
       
   423         case sun_java2d_pipe_BufferedOpCodes_RESET_TRANSFORM:
       
   424             {
       
   425                 OGLContext_ResetTransform(oglc);
       
   426             }
       
   427             break;
       
   428 
       
   429         // context-related ops
       
   430         case sun_java2d_pipe_BufferedOpCodes_SET_SURFACES:
       
   431             {
       
   432                 jlong pSrc = NEXT_LONG(b);
       
   433                 jlong pDst = NEXT_LONG(b);
       
   434                 if (oglc != NULL) {
       
   435                     RESET_PREVIOUS_OP();
       
   436                 }
       
   437                 oglc = OGLContext_SetSurfaces(env, pSrc, pDst);
       
   438                 dstOps = (OGLSDOps *)jlong_to_ptr(pDst);
       
   439             }
       
   440             break;
       
   441         case sun_java2d_pipe_BufferedOpCodes_SET_SCRATCH_SURFACE:
       
   442             {
       
   443                 jlong pConfigInfo = NEXT_LONG(b);
       
   444                 if (oglc != NULL) {
       
   445                     RESET_PREVIOUS_OP();
       
   446                 }
       
   447                 oglc = OGLSD_SetScratchSurface(env, pConfigInfo);
       
   448                 dstOps = NULL;
       
   449             }
       
   450             break;
       
   451         case sun_java2d_pipe_BufferedOpCodes_FLUSH_SURFACE:
       
   452             {
       
   453                 jlong pData = NEXT_LONG(b);
       
   454                 OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData);
       
   455                 if (oglsdo != NULL) {
       
   456                     CONTINUE_IF_NULL(oglc);
       
   457                     RESET_PREVIOUS_OP();
       
   458                     OGLSD_Delete(env, oglsdo);
       
   459                 }
       
   460             }
       
   461             break;
       
   462         case sun_java2d_pipe_BufferedOpCodes_DISPOSE_SURFACE:
       
   463             {
       
   464                 jlong pData = NEXT_LONG(b);
       
   465                 OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData);
       
   466                 if (oglsdo != NULL) {
       
   467                     CONTINUE_IF_NULL(oglc);
       
   468                     RESET_PREVIOUS_OP();
       
   469                     OGLSD_Delete(env, oglsdo);
       
   470                     if (oglsdo->privOps != NULL) {
       
   471                         free(oglsdo->privOps);
       
   472                     }
       
   473                 }
       
   474             }
       
   475             break;
       
   476         case sun_java2d_pipe_BufferedOpCodes_DISPOSE_CONFIG:
       
   477             {
       
   478                 jlong pConfigInfo = NEXT_LONG(b);
       
   479                 CONTINUE_IF_NULL(oglc);
       
   480                 RESET_PREVIOUS_OP();
       
   481                 OGLGC_DestroyOGLGraphicsConfig(pConfigInfo);
       
   482 
       
   483                 // the previous method will call glX/wglMakeCurrent(None),
       
   484                 // so we should nullify the current oglc and dstOps to avoid
       
   485                 // calling glFlush() (or similar) while no context is current
       
   486                 oglc = NULL;
       
   487                 dstOps = NULL;
       
   488             }
       
   489             break;
       
   490         case sun_java2d_pipe_BufferedOpCodes_INVALIDATE_CONTEXT:
       
   491             {
       
   492                 // flush just in case there are any pending operations in
       
   493                 // the hardware pipe
       
   494                 if (oglc != NULL) {
       
   495                     RESET_PREVIOUS_OP();
       
   496                     j2d_glFlush();
       
   497                 }
       
   498 
       
   499                 // invalidate the references to the current context and
       
   500                 // destination surface that are maintained at the native level
       
   501                 oglc = NULL;
       
   502                 dstOps = NULL;
       
   503             }
       
   504             break;
       
   505         case sun_java2d_pipe_BufferedOpCodes_SAVE_STATE:
       
   506             {
       
   507                 j2d_glPushAttrib(GL_ALL_ATTRIB_BITS);
       
   508                 j2d_glPushClientAttrib(GL_CLIENT_ALL_ATTRIB_BITS);
       
   509                 j2d_glMatrixMode(GL_MODELVIEW);
       
   510                 j2d_glPushMatrix();
       
   511                 j2d_glMatrixMode(GL_PROJECTION);
       
   512                 j2d_glPushMatrix();
       
   513                 j2d_glMatrixMode(GL_TEXTURE);
       
   514                 j2d_glPushMatrix();
       
   515             }
       
   516             break;
       
   517 
       
   518         case sun_java2d_pipe_BufferedOpCodes_RESTORE_STATE:
       
   519             {
       
   520                 j2d_glPopAttrib();
       
   521                 j2d_glPopClientAttrib();
       
   522                 j2d_glMatrixMode(GL_MODELVIEW);
       
   523                 j2d_glPopMatrix();
       
   524                 j2d_glMatrixMode(GL_PROJECTION);
       
   525                 j2d_glPopMatrix();
       
   526                 j2d_glMatrixMode(GL_TEXTURE);
       
   527                 j2d_glPopMatrix();
       
   528             }
       
   529             break;
       
   530         case sun_java2d_pipe_BufferedOpCodes_SYNC:
       
   531             {
       
   532                 sync = JNI_TRUE;
       
   533             }
       
   534             break;
       
   535 
       
   536         // multibuffering ops
       
   537         case sun_java2d_pipe_BufferedOpCodes_SWAP_BUFFERS:
       
   538             {
       
   539                 jlong window = NEXT_LONG(b);
       
   540                 if (oglc != NULL) {
       
   541                     RESET_PREVIOUS_OP();
       
   542                 }
       
   543                 OGLSD_SwapBuffers(env, window);
       
   544             }
       
   545             break;
       
   546 
       
   547         // special no-op (mainly used for achieving 8-byte alignment)
       
   548         case sun_java2d_pipe_BufferedOpCodes_NOOP:
       
   549             break;
       
   550 
       
   551         // paint-related ops
       
   552         case sun_java2d_pipe_BufferedOpCodes_RESET_PAINT:
       
   553             {
       
   554                 OGLPaints_ResetPaint(oglc);
       
   555             }
       
   556             break;
       
   557         case sun_java2d_pipe_BufferedOpCodes_SET_COLOR:
       
   558             {
       
   559                 jint pixel = NEXT_INT(b);
       
   560                 OGLPaints_SetColor(oglc, pixel);
       
   561             }
       
   562             break;
       
   563         case sun_java2d_pipe_BufferedOpCodes_SET_GRADIENT_PAINT:
       
   564             {
       
   565                 jboolean useMask= NEXT_BOOLEAN(b);
       
   566                 jboolean cyclic = NEXT_BOOLEAN(b);
       
   567                 jdouble p0      = NEXT_DOUBLE(b);
       
   568                 jdouble p1      = NEXT_DOUBLE(b);
       
   569                 jdouble p3      = NEXT_DOUBLE(b);
       
   570                 jint pixel1     = NEXT_INT(b);
       
   571                 jint pixel2     = NEXT_INT(b);
       
   572                 OGLPaints_SetGradientPaint(oglc, useMask, cyclic,
       
   573                                            p0, p1, p3,
       
   574                                            pixel1, pixel2);
       
   575             }
       
   576             break;
       
   577         case sun_java2d_pipe_BufferedOpCodes_SET_LINEAR_GRADIENT_PAINT:
       
   578             {
       
   579                 jboolean useMask = NEXT_BOOLEAN(b);
       
   580                 jboolean linear  = NEXT_BOOLEAN(b);
       
   581                 jint cycleMethod = NEXT_INT(b);
       
   582                 jint numStops    = NEXT_INT(b);
       
   583                 jfloat p0        = NEXT_FLOAT(b);
       
   584                 jfloat p1        = NEXT_FLOAT(b);
       
   585                 jfloat p3        = NEXT_FLOAT(b);
       
   586                 void *fractions, *pixels;
       
   587                 fractions = b; SKIP_BYTES(b, numStops * sizeof(jfloat));
       
   588                 pixels    = b; SKIP_BYTES(b, numStops * sizeof(jint));
       
   589                 OGLPaints_SetLinearGradientPaint(oglc, dstOps,
       
   590                                                  useMask, linear,
       
   591                                                  cycleMethod, numStops,
       
   592                                                  p0, p1, p3,
       
   593                                                  fractions, pixels);
       
   594             }
       
   595             break;
       
   596         case sun_java2d_pipe_BufferedOpCodes_SET_RADIAL_GRADIENT_PAINT:
       
   597             {
       
   598                 jboolean useMask = NEXT_BOOLEAN(b);
       
   599                 jboolean linear  = NEXT_BOOLEAN(b);
       
   600                 jint numStops    = NEXT_INT(b);
       
   601                 jint cycleMethod = NEXT_INT(b);
       
   602                 jfloat m00       = NEXT_FLOAT(b);
       
   603                 jfloat m01       = NEXT_FLOAT(b);
       
   604                 jfloat m02       = NEXT_FLOAT(b);
       
   605                 jfloat m10       = NEXT_FLOAT(b);
       
   606                 jfloat m11       = NEXT_FLOAT(b);
       
   607                 jfloat m12       = NEXT_FLOAT(b);
       
   608                 jfloat focusX    = NEXT_FLOAT(b);
       
   609                 void *fractions, *pixels;
       
   610                 fractions = b; SKIP_BYTES(b, numStops * sizeof(jfloat));
       
   611                 pixels    = b; SKIP_BYTES(b, numStops * sizeof(jint));
       
   612                 OGLPaints_SetRadialGradientPaint(oglc, dstOps,
       
   613                                                  useMask, linear,
       
   614                                                  cycleMethod, numStops,
       
   615                                                  m00, m01, m02,
       
   616                                                  m10, m11, m12,
       
   617                                                  focusX,
       
   618                                                  fractions, pixels);
       
   619             }
       
   620             break;
       
   621         case sun_java2d_pipe_BufferedOpCodes_SET_TEXTURE_PAINT:
       
   622             {
       
   623                 jboolean useMask= NEXT_BOOLEAN(b);
       
   624                 jboolean filter = NEXT_BOOLEAN(b);
       
   625                 jlong pSrc      = NEXT_LONG(b);
       
   626                 jdouble xp0     = NEXT_DOUBLE(b);
       
   627                 jdouble xp1     = NEXT_DOUBLE(b);
       
   628                 jdouble xp3     = NEXT_DOUBLE(b);
       
   629                 jdouble yp0     = NEXT_DOUBLE(b);
       
   630                 jdouble yp1     = NEXT_DOUBLE(b);
       
   631                 jdouble yp3     = NEXT_DOUBLE(b);
       
   632                 OGLPaints_SetTexturePaint(oglc, useMask, pSrc, filter,
       
   633                                           xp0, xp1, xp3,
       
   634                                           yp0, yp1, yp3);
       
   635             }
       
   636             break;
       
   637 
       
   638         // BufferedImageOp-related ops
       
   639         case sun_java2d_pipe_BufferedOpCodes_ENABLE_CONVOLVE_OP:
       
   640             {
       
   641                 jlong pSrc        = NEXT_LONG(b);
       
   642                 jboolean edgeZero = NEXT_BOOLEAN(b);
       
   643                 jint kernelWidth  = NEXT_INT(b);
       
   644                 jint kernelHeight = NEXT_INT(b);
       
   645                 OGLBufImgOps_EnableConvolveOp(oglc, pSrc, edgeZero,
       
   646                                               kernelWidth, kernelHeight, b);
       
   647                 SKIP_BYTES(b, kernelWidth * kernelHeight * sizeof(jfloat));
       
   648             }
       
   649             break;
       
   650         case sun_java2d_pipe_BufferedOpCodes_DISABLE_CONVOLVE_OP:
       
   651             {
       
   652                 OGLBufImgOps_DisableConvolveOp(oglc);
       
   653             }
       
   654             break;
       
   655         case sun_java2d_pipe_BufferedOpCodes_ENABLE_RESCALE_OP:
       
   656             {
       
   657                 jlong pSrc          = NEXT_LONG(b);
       
   658                 jboolean nonPremult = NEXT_BOOLEAN(b);
       
   659                 jint numFactors     = 4;
       
   660                 unsigned char *scaleFactors = b;
       
   661                 unsigned char *offsets = (b + numFactors * sizeof(jfloat));
       
   662                 OGLBufImgOps_EnableRescaleOp(oglc, pSrc, nonPremult,
       
   663                                              scaleFactors, offsets);
       
   664                 SKIP_BYTES(b, numFactors * sizeof(jfloat) * 2);
       
   665             }
       
   666             break;
       
   667         case sun_java2d_pipe_BufferedOpCodes_DISABLE_RESCALE_OP:
       
   668             {
       
   669                 OGLBufImgOps_DisableRescaleOp(oglc);
       
   670             }
       
   671             break;
       
   672         case sun_java2d_pipe_BufferedOpCodes_ENABLE_LOOKUP_OP:
       
   673             {
       
   674                 jlong pSrc          = NEXT_LONG(b);
       
   675                 jboolean nonPremult = NEXT_BOOLEAN(b);
       
   676                 jboolean shortData  = NEXT_BOOLEAN(b);
       
   677                 jint numBands       = NEXT_INT(b);
       
   678                 jint bandLength     = NEXT_INT(b);
       
   679                 jint offset         = NEXT_INT(b);
       
   680                 jint bytesPerElem = shortData ? sizeof(jshort):sizeof(jbyte);
       
   681                 void *tableValues = b;
       
   682                 OGLBufImgOps_EnableLookupOp(oglc, pSrc, nonPremult, shortData,
       
   683                                             numBands, bandLength, offset,
       
   684                                             tableValues);
       
   685                 SKIP_BYTES(b, numBands * bandLength * bytesPerElem);
       
   686             }
       
   687             break;
       
   688         case sun_java2d_pipe_BufferedOpCodes_DISABLE_LOOKUP_OP:
       
   689             {
       
   690                 OGLBufImgOps_DisableLookupOp(oglc);
       
   691             }
       
   692             break;
       
   693 
       
   694         default:
       
   695             J2dRlsTraceLn1(J2D_TRACE_ERROR,
       
   696                 "OGLRenderQueue_flushBuffer: invalid opcode=%d", opcode);
       
   697             if (oglc != NULL) {
       
   698                 RESET_PREVIOUS_OP();
       
   699             }
       
   700             return;
       
   701         }
       
   702     }
       
   703 
       
   704     if (oglc != NULL) {
       
   705         RESET_PREVIOUS_OP();
       
   706         if (sync) {
       
   707             j2d_glFinish();
       
   708         } else {
       
   709             j2d_glFlush();
       
   710         }
       
   711         OGLSD_Flush(env);
       
   712     }
       
   713 }
       
   714 
       
   715 /**
       
   716  * Returns a pointer to the "current" context, as set by the last SET_SURFACES
       
   717  * or SET_SCRATCH_SURFACE operation.
       
   718  */
       
   719 OGLContext *
       
   720 OGLRenderQueue_GetCurrentContext()
       
   721 {
       
   722     return oglc;
       
   723 }
       
   724 
       
   725 /**
       
   726  * Returns a pointer to the "current" destination surface, as set by the last
       
   727  * SET_SURFACES operation.
       
   728  */
       
   729 OGLSDOps *
       
   730 OGLRenderQueue_GetCurrentDestination()
       
   731 {
       
   732     return dstOps;
       
   733 }
       
   734 
       
   735 /**
       
   736  * Used to track whether we are within a series of simple primitive operations
       
   737  * or texturing operations.  The op parameter determines the nature of the
       
   738  * operation that is to follow.  Valid values for this op parameter are:
       
   739  *
       
   740  *     GL_QUADS
       
   741  *     GL_LINES
       
   742  *     GL_LINE_LOOP
       
   743  *     GL_LINE_STRIP
       
   744  *     (basically any of the valid parameters for glBegin())
       
   745  *
       
   746  *     GL_TEXTURE_2D
       
   747  *     GL_TEXTURE_RECTANGLE_ARB
       
   748  *
       
   749  *     OGL_STATE_RESET
       
   750  *     OGL_STATE_CHANGE
       
   751  *     OGL_STATE_MASK_OP
       
   752  *     OGL_STATE_GLYPH_OP
       
   753  *
       
   754  * Note that the above constants are guaranteed to be unique values.  The
       
   755  * last few are defined to be negative values to differentiate them from
       
   756  * the core GL* constants, which are defined to be non-negative.
       
   757  *
       
   758  * For simple primitives, this method allows us to batch similar primitives
       
   759  * within the same glBegin()/glEnd() pair.  For example, if we have 100
       
   760  * consecutive FILL_RECT operations, we only have to call glBegin(GL_QUADS)
       
   761  * for the first op, and then subsequent operations will consist only of
       
   762  * glVertex*() calls, which helps improve performance.  The glEnd() call
       
   763  * only needs to be issued before an operation that cannot happen within a
       
   764  * glBegin()/glEnd() pair (e.g. updating the clip), or one that requires a
       
   765  * different primitive mode (e.g. GL_LINES).
       
   766  *
       
   767  * For operations that involve texturing, this method helps us to avoid
       
   768  * calling glEnable(GL_TEXTURE_2D) and glDisable(GL_TEXTURE_2D) around each
       
   769  * operation.  For example, if we have an alternating series of ISO_BLIT
       
   770  * and MASK_BLIT operations (both of which involve texturing), we need
       
   771  * only to call glEnable(GL_TEXTURE_2D) before the first ISO_BLIT operation.
       
   772  * The glDisable(GL_TEXTURE_2D) call only needs to be issued before an
       
   773  * operation that cannot (or should not) happen while texturing is enabled
       
   774  * (e.g. a context change, or a simple primitive operation like GL_QUADS).
       
   775  */
       
   776 void
       
   777 OGLRenderQueue_CheckPreviousOp(jint op)
       
   778 {
       
   779     if (previousOp == op) {
       
   780         // The op is the same as last time, so we can return immediately.
       
   781         return;
       
   782     }
       
   783 
       
   784     J2dTraceLn1(J2D_TRACE_VERBOSE,
       
   785                 "OGLRenderQueue_CheckPreviousOp: new op=%d", op);
       
   786 
       
   787     switch (previousOp) {
       
   788     case GL_TEXTURE_2D:
       
   789     case GL_TEXTURE_RECTANGLE_ARB:
       
   790         if (op == OGL_STATE_CHANGE) {
       
   791             // Optimization: Certain state changes (those marked as
       
   792             // OGL_STATE_CHANGE) are allowed while texturing is enabled.
       
   793             // In this case, we can allow previousOp to remain as it is and
       
   794             // then return early.
       
   795             return;
       
   796         } else {
       
   797             // Otherwise, op must be a primitive operation, or a reset, so
       
   798             // we will disable texturing.
       
   799             j2d_glDisable(previousOp);
       
   800             // This next step of binding to zero should not be strictly
       
   801             // necessary, but on some older Nvidia boards (e.g. GeForce 2)
       
   802             // problems will arise if GL_TEXTURE_2D and
       
   803             // GL_TEXTURE_RECTANGLE_ARB are bound at the same time, so we
       
   804             // will do this just to be safe.
       
   805             j2d_glBindTexture(previousOp, 0);
       
   806         }
       
   807         break;
       
   808     case OGL_STATE_MASK_OP:
       
   809         OGLVertexCache_DisableMaskCache(oglc);
       
   810         break;
       
   811     case OGL_STATE_GLYPH_OP:
       
   812         OGLTR_DisableGlyphVertexCache(oglc);
       
   813         break;
       
   814     case OGL_STATE_PGRAM_OP:
       
   815         OGLRenderer_DisableAAParallelogramProgram();
       
   816         break;
       
   817     case OGL_STATE_RESET:
       
   818     case OGL_STATE_CHANGE:
       
   819         // No-op
       
   820         break;
       
   821     default:
       
   822         // In this case, op must be one of:
       
   823         //     - the start of a different primitive type (glBegin())
       
   824         //     - a texturing operation
       
   825         //     - a state change (not allowed within glBegin()/glEnd() pairs)
       
   826         //     - a reset
       
   827         // so we must first complete the previous primitive operation.
       
   828         j2d_glEnd();
       
   829         break;
       
   830     }
       
   831 
       
   832     switch (op) {
       
   833     case GL_TEXTURE_2D:
       
   834     case GL_TEXTURE_RECTANGLE_ARB:
       
   835         // We are starting a texturing operation, so enable texturing.
       
   836         j2d_glEnable(op);
       
   837         break;
       
   838     case OGL_STATE_MASK_OP:
       
   839         OGLVertexCache_EnableMaskCache(oglc);
       
   840         break;
       
   841     case OGL_STATE_GLYPH_OP:
       
   842         OGLTR_EnableGlyphVertexCache(oglc);
       
   843         break;
       
   844     case OGL_STATE_PGRAM_OP:
       
   845         OGLRenderer_EnableAAParallelogramProgram();
       
   846         break;
       
   847     case OGL_STATE_RESET:
       
   848     case OGL_STATE_CHANGE:
       
   849         // No-op
       
   850         break;
       
   851     default:
       
   852         // We are starting a primitive operation, so call glBegin() with
       
   853         // the given primitive type.
       
   854         j2d_glBegin(op);
       
   855         break;
       
   856     }
       
   857 
       
   858     previousOp = op;
       
   859 }
       
   860 
       
   861 #endif /* !HEADLESS */