| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2007 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any 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 | */ |
| 40 | void |
| 41 | OGLMaskBlit_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 */ |