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* Copyright 2011, Blender Foundation.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* Copyright 2011-2013 Blender Foundation
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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#include <stdlib.h>
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void Device::pixels_copy_from(device_memory& mem, int y, int w, int h)
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mem_copy_from(mem, y, w, h, sizeof(uint8_t)*4);
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if(mem.data_type == TYPE_HALF)
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mem_copy_from(mem, y, w, h, sizeof(half4));
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mem_copy_from(mem, y, w, h, sizeof(uchar4));
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void Device::pixels_free(device_memory& mem)
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glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
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glPixelZoom((float)width/(float)w, (float)height/(float)h);
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uint8_t *pixels = (uint8_t*)rgba.data_pointer;
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/* for multi devices, this assumes the ineffecient method that we allocate
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* all pixels on the device even though we only render to a subset */
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glDrawPixels(w, h, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
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glRasterPos2f(0.0f, 0.0f);
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glPixelZoom(1.0f, 1.0f);
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glColor3f(1.0f, 1.0f, 1.0f);
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if(rgba.data_type == TYPE_HALF) {
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/* for multi devices, this assumes the ineffecient method that we allocate
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* all pixels on the device even though we only render to a subset */
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GLhalf *data_pointer = (GLhalf*)rgba.data_pointer;
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data_pointer += 4*y*w;
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/* draw half float texture, GLSL shader for display transform assumed to be bound */
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glGenTextures(1, &texid);
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glBindTexture(GL_TEXTURE_2D, texid);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, w, h, 0, GL_RGBA, GL_HALF_FLOAT, data_pointer);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glEnable(GL_TEXTURE_2D);
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glTranslatef(0.0f, (float)dy, 0.0f);
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glTexCoord2f(0.0f, 0.0f);
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glVertex2f(0.0f, 0.0f);
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glTexCoord2f(1.0f, 0.0f);
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glVertex2f((float)width, 0.0f);
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glTexCoord2f(1.0f, 1.0f);
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glVertex2f((float)width, (float)height);
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glTexCoord2f(0.0f, 1.0f);
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glVertex2f(0.0f, (float)height);
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glBindTexture(GL_TEXTURE_2D, 0);
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glDisable(GL_TEXTURE_2D);
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glDeleteTextures(1, &texid);
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/* fallback for old graphics cards that don't support GLSL, half float,
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* and non-power-of-two textures */
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glPixelZoom((float)width/(float)w, (float)height/(float)h);
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glRasterPos2f(0, dy);
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uint8_t *pixels = (uint8_t*)rgba.data_pointer;
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glDrawPixels(w, h, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
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glRasterPos2f(0.0f, 0.0f);
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glPixelZoom(1.0f, 1.0f);
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glDisable(GL_BLEND);
added
removed
intern/cycles/device/device.cpp
