/*
* Copyright (c) 2003, 2007, 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 <jlong.h>
#include "OGLMaskBlit.h"
#include "OGLRenderQueue.h"
#include "OGLSurfaceData.h"
/**
* REMIND: This method assumes that the dimensions of the incoming pixel
* array are less than or equal to the cached blit texture tile;
* these are rather fragile assumptions, and should be cleaned up...
*/
void
OGLMaskBlit_MaskBlit(JNIEnv *env, OGLContext *oglc,
jint dstx, jint dsty,
jint width, jint height,
void *pPixels)
{
GLfloat tx1, ty1, tx2, ty2;
J2dTraceLn(J2D_TRACE_INFO, "OGLMaskBlit_MaskBlit");
if (width <= 0 || height <= 0) {
J2dTraceLn(J2D_TRACE_WARNING,
"OGLMaskBlit_MaskBlit: invalid dimensions");
return;
}
RETURN_IF_NULL(pPixels);
RETURN_IF_NULL(oglc);
CHECK_PREVIOUS_OP(GL_TEXTURE_2D);
if (oglc->blitTextureID == 0) {
if (!OGLContext_InitBlitTileTexture(oglc)) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLMaskBlit_MaskBlit: could not init blit tile");
return;
}
}
// set up texture parameters
j2d_glBindTexture(GL_TEXTURE_2D, oglc->blitTextureID);
OGLC_UPDATE_TEXTURE_FUNCTION(oglc, GL_MODULATE);
j2d_glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
j2d_glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
// copy system memory IntArgbPre surface into cached texture
j2d_glTexSubImage2D(GL_TEXTURE_2D, 0,
0, 0, width, height,
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, pPixels);
tx1 = 0.0f;
ty1 = 0.0f;
tx2 = ((GLfloat)width) / OGLC_BLIT_TILE_SIZE;
ty2 = ((GLfloat)height) / OGLC_BLIT_TILE_SIZE;
// render cached texture to the OpenGL surface
j2d_glBegin(GL_QUADS);
j2d_glTexCoord2f(tx1, ty1); j2d_glVertex2i(dstx, dsty);
j2d_glTexCoord2f(tx2, ty1); j2d_glVertex2i(dstx + width, dsty);
j2d_glTexCoord2f(tx2, ty2); j2d_glVertex2i(dstx + width, dsty + height);
j2d_glTexCoord2f(tx1, ty2); j2d_glVertex2i(dstx, dsty + height);
j2d_glEnd();
}
#endif /* !HEADLESS */