| /* |
| * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved. |
| * 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #ifndef HEADLESS |
| |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "sun_java2d_SunGraphics2D.h" |
| |
| #include "jni_util.h" |
| #include "OGLPaints.h" |
| #include "OGLVertexCache.h" |
| |
| typedef struct _J2DVertex { |
| jfloat tx, ty; |
| jubyte r, g, b, a; |
| jfloat dx, dy; |
| } J2DVertex; |
| |
| // Multitexture vertex |
| typedef struct _J2DMTVertex { |
| jfloat dx, dy; |
| jfloat tx0, ty0; |
| jfloat tx1, ty1; |
| } J2DMTVertex; |
| |
| static J2DVertex *vertexCache = NULL; |
| static jint vertexCacheIndex = 0; |
| |
| static J2DMTVertex *mtVertexCache = NULL; |
| static jboolean mtVertexCacheEnabled = JNI_FALSE; |
| static jboolean mtUseTxtBarrier = JNI_FALSE; |
| static jint evenLCDGlyphInd = 0; |
| static jint oddLCDGlyphInd = ODD_LCD_GLYPHS_OFFSET; |
| static jint lcdGlyphInd = 0; |
| |
| static GLuint maskCacheTexID = 0; |
| static jint maskCacheIndex = 0; |
| |
| #define OGLVC_ADD_VERTEX(TX, TY, R, G, B, A, DX, DY) \ |
| do { \ |
| J2DVertex *v = &vertexCache[vertexCacheIndex++]; \ |
| v->tx = TX; \ |
| v->ty = TY; \ |
| v->r = R; \ |
| v->g = G; \ |
| v->b = B; \ |
| v->a = A; \ |
| v->dx = DX; \ |
| v->dy = DY; \ |
| } while (0) |
| |
| #define OGLVC_ADD_QUAD(TX1, TY1, TX2, TY2, DX1, DY1, DX2, DY2, R, G, B, A) \ |
| do { \ |
| OGLVC_ADD_VERTEX(TX1, TY1, R, G, B, A, DX1, DY1); \ |
| OGLVC_ADD_VERTEX(TX2, TY1, R, G, B, A, DX2, DY1); \ |
| OGLVC_ADD_VERTEX(TX2, TY2, R, G, B, A, DX2, DY2); \ |
| OGLVC_ADD_VERTEX(TX1, TY2, R, G, B, A, DX1, DY2); \ |
| } while (0) |
| |
| #define OGLMTVC_ADD_VERTEX(IND, DX, DY, TX0, TY0, TX1, TY1) \ |
| do { \ |
| J2DMTVertex *v = &mtVertexCache[IND++]; \ |
| v->dx = DX; \ |
| v->dy = DY; \ |
| v->tx0 = TX0; \ |
| v->ty0 = TY0; \ |
| v->tx1 = TX1; \ |
| v->ty1 = TY1; \ |
| } while (0) |
| |
| #define OGLMTVC_ADD_QUAD(IND, DX1, DY1, DX2, DY2, TX1, TY1, TX2, TY2, DTX1, DTY1, DTX2, DTY2) \ |
| do { \ |
| OGLMTVC_ADD_VERTEX((IND), DX1, DY1, TX1, TY1, DTX1, DTY1); \ |
| OGLMTVC_ADD_VERTEX((IND), DX2, DY1, TX2, TY1, DTX2, DTY1); \ |
| OGLMTVC_ADD_VERTEX((IND), DX2, DY2, TX2, TY2, DTX2, DTY2); \ |
| OGLMTVC_ADD_VERTEX((IND), DX1, DY2, TX1, TY2, DTX1, DTY2); \ |
| } while (0) |
| |
| jboolean |
| OGLVertexCache_InitVertexCache(OGLContext *oglc) |
| { |
| J2dTraceLn(J2D_TRACE_INFO, "OGLVertexCache_InitVertexCache"); |
| |
| if (vertexCache == NULL) { |
| vertexCache = (J2DVertex *)malloc(OGLVC_MAX_INDEX * sizeof(J2DVertex)); |
| if (vertexCache == NULL) { |
| return JNI_FALSE; |
| } |
| } |
| |
| if (!oglc->vertexCacheEnabled) { |
| j2d_glTexCoordPointer(2, GL_FLOAT, |
| sizeof(J2DVertex), vertexCache); |
| j2d_glColorPointer(4, GL_UNSIGNED_BYTE, |
| sizeof(J2DVertex), ((jfloat *)vertexCache) + 2); |
| j2d_glVertexPointer(2, GL_FLOAT, |
| sizeof(J2DVertex), ((jfloat *)vertexCache) + 3); |
| |
| j2d_glEnableClientState(GL_TEXTURE_COORD_ARRAY); |
| j2d_glEnableClientState(GL_COLOR_ARRAY); |
| j2d_glEnableClientState(GL_VERTEX_ARRAY); |
| |
| oglc->vertexCacheEnabled = JNI_TRUE; |
| } |
| |
| return JNI_TRUE; |
| } |
| |
| void |
| OGLVertexCache_FlushVertexCache() |
| { |
| J2dTraceLn(J2D_TRACE_INFO, "OGLVertexCache_FlushVertexCache"); |
| |
| if (vertexCacheIndex > 0) { |
| j2d_glDrawArrays(GL_QUADS, 0, vertexCacheIndex); |
| } |
| vertexCacheIndex = 0; |
| } |
| |
| /** |
| * This method is somewhat hacky, but necessary for the foreseeable future. |
| * The problem is the way OpenGL handles color values in vertex arrays. When |
| * a vertex in a vertex array contains a color, and then the vertex array |
| * is rendered via glDrawArrays(), the global OpenGL color state is actually |
| * modified each time a vertex is rendered. This means that after all |
| * vertices have been flushed, the global OpenGL color state will be set to |
| * the color of the most recently rendered element in the vertex array. |
| * |
| * The reason this is a problem for us is that we do not want to flush the |
| * vertex array (in the case of mask/glyph operations) or issue a glEnd() |
| * (in the case of non-antialiased primitives) everytime the current color |
| * changes, which would defeat any benefit from batching in the first place. |
| * We handle this in practice by not calling CHECK/RESET_PREVIOUS_OP() when |
| * the simple color state is changing in OGLPaints_SetColor(). This is |
| * problematic for vertex caching because we may end up with the following |
| * situation, for example: |
| * SET_COLOR (orange) |
| * MASK_FILL |
| * MASK_FILL |
| * SET_COLOR (blue; remember, this won't cause a flush) |
| * FILL_RECT (this will cause the vertex array to be flushed) |
| * |
| * In this case, we would actually end up rendering an orange FILL_RECT, |
| * not a blue one as intended, because flushing the vertex cache flush would |
| * override the color state from the most recent SET_COLOR call. |
| * |
| * Long story short, the easiest way to resolve this problem is to call |
| * this method just after disabling the mask/glyph cache, which will ensure |
| * that the appropriate color state is restored. |
| */ |
| void |
| OGLVertexCache_RestoreColorState(OGLContext *oglc) |
| { |
| if (oglc->paintState == sun_java2d_SunGraphics2D_PAINT_ALPHACOLOR) { |
| OGLPaints_SetColor(oglc, oglc->pixel); |
| } |
| } |
| |
| static jboolean |
| OGLVertexCache_InitMaskCache() |
| { |
| J2dTraceLn(J2D_TRACE_INFO, "OGLVertexCache_InitMaskCache"); |
| |
| maskCacheTexID = |
| OGLContext_CreateBlitTexture(GL_INTENSITY8, GL_LUMINANCE, |
| OGLVC_MASK_CACHE_WIDTH_IN_TEXELS, |
| OGLVC_MASK_CACHE_HEIGHT_IN_TEXELS); |
| |
| // init special fully opaque tile in the upper-right corner of |
| // the mask cache texture |
| { |
| GLubyte allOnes[OGLVC_MASK_CACHE_TILE_SIZE]; |
| memset(allOnes, 0xff, OGLVC_MASK_CACHE_TILE_SIZE); |
| j2d_glTexSubImage2D(GL_TEXTURE_2D, 0, |
| OGLVC_MASK_CACHE_SPECIAL_TILE_X, |
| OGLVC_MASK_CACHE_SPECIAL_TILE_Y, |
| OGLVC_MASK_CACHE_TILE_WIDTH, |
| OGLVC_MASK_CACHE_TILE_HEIGHT, |
| GL_LUMINANCE, GL_UNSIGNED_BYTE, allOnes); |
| } |
| |
| return JNI_TRUE; |
| } |
| |
| void |
| OGLVertexCache_EnableMaskCache(OGLContext *oglc) |
| { |
| J2dTraceLn(J2D_TRACE_INFO, "OGLVertexCache_EnableMaskCache"); |
| |
| if (!OGLVertexCache_InitVertexCache(oglc)) { |
| return; |
| } |
| |
| if (maskCacheTexID == 0) { |
| if (!OGLVertexCache_InitMaskCache()) { |
| return; |
| } |
| } |
| |
| j2d_glEnable(GL_TEXTURE_2D); |
| j2d_glBindTexture(GL_TEXTURE_2D, maskCacheTexID); |
| OGLC_UPDATE_TEXTURE_FUNCTION(oglc, GL_MODULATE); |
| j2d_glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
| } |
| |
| void |
| OGLVertexCache_DisableMaskCache(OGLContext *oglc) |
| { |
| J2dTraceLn(J2D_TRACE_INFO, "OGLVertexCache_DisableMaskCache"); |
| |
| OGLVertexCache_FlushVertexCache(); |
| OGLVertexCache_RestoreColorState(oglc); |
| |
| j2d_glDisable(GL_TEXTURE_2D); |
| j2d_glPixelStorei(GL_UNPACK_ALIGNMENT, 4); |
| j2d_glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0); |
| j2d_glPixelStorei(GL_UNPACK_SKIP_ROWS, 0); |
| j2d_glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); |
| |
| maskCacheIndex = 0; |
| } |
| |
| void |
| OGLVertexCache_AddMaskQuad(OGLContext *oglc, |
| jint srcx, jint srcy, |
| jint dstx, jint dsty, |
| jint width, jint height, |
| jint maskscan, void *mask) |
| { |
| jfloat tx1, ty1, tx2, ty2; |
| jfloat dx1, dy1, dx2, dy2; |
| |
| J2dTraceLn1(J2D_TRACE_INFO, "OGLVertexCache_AddMaskQuad: %d", |
| maskCacheIndex); |
| |
| if (maskCacheIndex >= OGLVC_MASK_CACHE_MAX_INDEX || |
| vertexCacheIndex >= OGLVC_MAX_INDEX) |
| { |
| OGLVertexCache_FlushVertexCache(); |
| maskCacheIndex = 0; |
| } |
| |
| if (mask != NULL) { |
| jint texx = OGLVC_MASK_CACHE_TILE_WIDTH * |
| (maskCacheIndex % OGLVC_MASK_CACHE_WIDTH_IN_TILES); |
| jint texy = OGLVC_MASK_CACHE_TILE_HEIGHT * |
| (maskCacheIndex / OGLVC_MASK_CACHE_WIDTH_IN_TILES); |
| |
| // update the source pointer offsets |
| j2d_glPixelStorei(GL_UNPACK_SKIP_PIXELS, srcx); |
| j2d_glPixelStorei(GL_UNPACK_SKIP_ROWS, srcy); |
| j2d_glPixelStorei(GL_UNPACK_ROW_LENGTH, maskscan); |
| |
| // copy alpha mask into texture tile |
| j2d_glTexSubImage2D(GL_TEXTURE_2D, 0, |
| texx, texy, width, height, |
| GL_LUMINANCE, GL_UNSIGNED_BYTE, mask); |
| |
| tx1 = ((jfloat)texx) / OGLVC_MASK_CACHE_WIDTH_IN_TEXELS; |
| ty1 = ((jfloat)texy) / OGLVC_MASK_CACHE_HEIGHT_IN_TEXELS; |
| |
| maskCacheIndex++; |
| } else { |
| // use special fully opaque tile |
| tx1 = ((jfloat)OGLVC_MASK_CACHE_SPECIAL_TILE_X) / |
| OGLVC_MASK_CACHE_WIDTH_IN_TEXELS; |
| ty1 = ((jfloat)OGLVC_MASK_CACHE_SPECIAL_TILE_Y) / |
| OGLVC_MASK_CACHE_HEIGHT_IN_TEXELS; |
| } |
| |
| tx2 = tx1 + (((jfloat)width) / OGLVC_MASK_CACHE_WIDTH_IN_TEXELS); |
| ty2 = ty1 + (((jfloat)height) / OGLVC_MASK_CACHE_HEIGHT_IN_TEXELS); |
| |
| dx1 = (jfloat)dstx; |
| dy1 = (jfloat)dsty; |
| dx2 = dx1 + width; |
| dy2 = dy1 + height; |
| |
| OGLVC_ADD_QUAD(tx1, ty1, tx2, ty2, |
| dx1, dy1, dx2, dy2, |
| oglc->r, oglc->g, oglc->b, oglc->a); |
| } |
| |
| void |
| OGLVertexCache_AddGlyphQuad(OGLContext *oglc, |
| jfloat tx1, jfloat ty1, jfloat tx2, jfloat ty2, |
| jfloat dx1, jfloat dy1, jfloat dx2, jfloat dy2) |
| { |
| J2dTraceLn(J2D_TRACE_INFO, "OGLVertexCache_AddGlyphQuad"); |
| |
| if (vertexCacheIndex >= OGLVC_MAX_INDEX) { |
| OGLVertexCache_FlushVertexCache(); |
| } |
| |
| OGLVC_ADD_QUAD(tx1, ty1, tx2, ty2, |
| dx1, dy1, dx2, dy2, |
| oglc->r, oglc->g, oglc->b, oglc->a); |
| } |
| |
| jboolean OGLMTVertexCache_enable(OGLContext *oglc, jboolean useTxtBarrier) { |
| mtUseTxtBarrier = useTxtBarrier; |
| if (mtVertexCache == NULL) { |
| mtVertexCache = (J2DVertex *)malloc(OGLMTVC_MAX_INDEX * sizeof(J2DMTVertex)); |
| if (mtVertexCache == NULL) { |
| return JNI_FALSE; |
| } |
| } |
| |
| if (!mtVertexCacheEnabled) { |
| oglc->vertexCacheEnabled = JNI_FALSE; |
| |
| j2d_glVertexPointer(2, GL_FLOAT, sizeof(J2DMTVertex), &mtVertexCache[0].dx); |
| j2d_glEnableClientState(GL_VERTEX_ARRAY); |
| j2d_glClientActiveTextureARB(GL_TEXTURE1_ARB); |
| j2d_glTexCoordPointer(2, GL_FLOAT, sizeof(J2DMTVertex), &mtVertexCache[0].tx1); |
| j2d_glEnableClientState(GL_TEXTURE_COORD_ARRAY); |
| j2d_glClientActiveTextureARB(GL_TEXTURE0_ARB); |
| j2d_glTexCoordPointer(2, GL_FLOAT, sizeof(J2DMTVertex), &mtVertexCache[0].tx0); |
| j2d_glEnableClientState(GL_TEXTURE_COORD_ARRAY); |
| mtVertexCacheEnabled = JNI_TRUE; |
| evenLCDGlyphInd = 0; |
| oddLCDGlyphInd = ODD_LCD_GLYPHS_OFFSET; |
| lcdGlyphInd = 0; |
| } |
| |
| } |
| void OGLMTVertexCache_disable(OGLContext *oglc) { |
| if (mtVertexCacheEnabled) { |
| OGLMTVertexCache_flush(oglc, OGLMTVC_FLUSH_ALL); |
| mtVertexCacheEnabled = JNI_FALSE; |
| } |
| } |
| |
| void OGLMTVertexCache_flush(OGLContext *oglc, jint mask) { |
| if (mtVertexCacheEnabled) { |
| if ((mask & OGLMTVC_FLUSH_EVEN) && evenLCDGlyphInd > 0) { |
| j2d_glDrawArrays(GL_QUADS, 0, evenLCDGlyphInd); |
| evenLCDGlyphInd = 0; |
| if (mtUseTxtBarrier) { |
| j2d_glTextureBarrierNV(); |
| } |
| } |
| |
| if ((mask & OGLMTVC_FLUSH_ODD) && oddLCDGlyphInd > ODD_LCD_GLYPHS_OFFSET) { |
| j2d_glDrawArrays(GL_QUADS, ODD_LCD_GLYPHS_OFFSET, |
| oddLCDGlyphInd - ODD_LCD_GLYPHS_OFFSET); |
| oddLCDGlyphInd = ODD_LCD_GLYPHS_OFFSET; |
| if (mtUseTxtBarrier) { |
| j2d_glTextureBarrierNV(); |
| } |
| } |
| } |
| } |
| |
| void OGLMTVertexCache_addGlyphQuad(OGLContext *oglc, |
| jfloat dx1, jfloat dy1, |
| jfloat dx2, jfloat dy2, |
| jfloat tx1, jfloat ty1, |
| jfloat tx2, jfloat ty2, |
| jfloat dtx1, jfloat dty1, |
| jfloat dtx2, jfloat dty2) |
| { |
| jint* ind; |
| if (lcdGlyphInd & 0x1) { |
| if (oddLCDGlyphInd >= OGLMTVC_MAX_INDEX) { |
| OGLMTVertexCache_flush(oglc, OGLMTVC_FLUSH_ODD); |
| } |
| ind = &oddLCDGlyphInd; |
| } else { |
| if (evenLCDGlyphInd >= ODD_LCD_GLYPHS_OFFSET) { |
| OGLMTVertexCache_flush(oglc, OGLMTVC_FLUSH_EVEN); |
| } |
| ind = &evenLCDGlyphInd; |
| } |
| lcdGlyphInd++; |
| OGLMTVC_ADD_QUAD(*ind, dx1, dy1, dx2, dy2, tx1, ty1, tx2, ty2, dtx1, dty1, dtx2, dty2); |
| } |
| |
| #endif /* !HEADLESS */ |