1/* 2 * Copyright (c) 2003, 2007, 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#include <jlong.h> 30 31#include "OGLMaskBlit.h" 32#include "OGLRenderQueue.h" 33#include "OGLSurfaceData.h" 34 35/** 36 * REMIND: This method assumes that the dimensions of the incoming pixel 37 * array are less than or equal to the cached blit texture tile; 38 * these are rather fragile assumptions, and should be cleaned up... 39 */ 40void 41OGLMaskBlit_MaskBlit(JNIEnv *env, OGLContext *oglc, 42 jint dstx, jint dsty, 43 jint width, jint height, 44 void *pPixels) 45{ 46 GLfloat tx1, ty1, tx2, ty2; 47 48 J2dTraceLn(J2D_TRACE_INFO, "OGLMaskBlit_MaskBlit"); 49 50 if (width <= 0 || height <= 0) { 51 J2dTraceLn(J2D_TRACE_WARNING, 52 "OGLMaskBlit_MaskBlit: invalid dimensions"); 53 return; 54 } 55 56 RETURN_IF_NULL(pPixels); 57 RETURN_IF_NULL(oglc); 58 CHECK_PREVIOUS_OP(GL_TEXTURE_2D); 59 60 if (oglc->blitTextureID == 0) { 61 if (!OGLContext_InitBlitTileTexture(oglc)) { 62 J2dRlsTraceLn(J2D_TRACE_ERROR, 63 "OGLMaskBlit_MaskBlit: could not init blit tile"); 64 return; 65 } 66 } 67 68 // set up texture parameters 69 j2d_glBindTexture(GL_TEXTURE_2D, oglc->blitTextureID); 70 OGLC_UPDATE_TEXTURE_FUNCTION(oglc, GL_MODULATE); 71 j2d_glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 72 j2d_glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 73 74 // copy system memory IntArgbPre surface into cached texture 75 j2d_glTexSubImage2D(GL_TEXTURE_2D, 0, 76 0, 0, width, height, 77 GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, pPixels); 78 79 tx1 = 0.0f; 80 ty1 = 0.0f; 81 tx2 = ((GLfloat)width) / OGLC_BLIT_TILE_SIZE; 82 ty2 = ((GLfloat)height) / OGLC_BLIT_TILE_SIZE; 83 84 // render cached texture to the OpenGL surface 85 j2d_glBegin(GL_QUADS); 86 j2d_glTexCoord2f(tx1, ty1); j2d_glVertex2i(dstx, dsty); 87 j2d_glTexCoord2f(tx2, ty1); j2d_glVertex2i(dstx + width, dsty); 88 j2d_glTexCoord2f(tx2, ty2); j2d_glVertex2i(dstx + width, dsty + height); 89 j2d_glTexCoord2f(tx1, ty2); j2d_glVertex2i(dstx, dsty + height); 90 j2d_glEnd(); 91} 92 93#endif /* !HEADLESS */ 94