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Diffstat (limited to 'backends/graphics/opengl/pipelines/fixed.cpp')
-rw-r--r-- | backends/graphics/opengl/pipelines/fixed.cpp | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/backends/graphics/opengl/pipelines/fixed.cpp b/backends/graphics/opengl/pipelines/fixed.cpp new file mode 100644 index 0000000000..8e3bd7eaee --- /dev/null +++ b/backends/graphics/opengl/pipelines/fixed.cpp @@ -0,0 +1,70 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program 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 for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "backends/graphics/opengl/pipelines/fixed.h" + +namespace OpenGL { + +#if !USE_FORCED_GLES2 +void FixedPipeline::activateInternal() { + GL_CALL(glDisable(GL_LIGHTING)); + GL_CALL(glDisable(GL_FOG)); + GL_CALL(glShadeModel(GL_FLAT)); + GL_CALL(glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST)); + + GL_CALL(glEnableClientState(GL_VERTEX_ARRAY)); + GL_CALL(glEnableClientState(GL_TEXTURE_COORD_ARRAY)); + +#if !USE_FORCED_GLES + if (g_context.multitextureSupported) { + GL_CALL(glActiveTexture(GL_TEXTURE0)); + } +#endif + GL_CALL(glEnable(GL_TEXTURE_2D)); +} + +void FixedPipeline::setColor(GLfloat r, GLfloat g, GLfloat b, GLfloat a) { + GL_CALL(glColor4f(r, g, b, a)); +} + +void FixedPipeline::drawTexture(const GLTexture &texture, const GLfloat *coordinates) { + texture.bind(); + + GL_CALL(glTexCoordPointer(2, GL_FLOAT, 0, texture.getTexCoords())); + GL_CALL(glVertexPointer(2, GL_FLOAT, 0, coordinates)); + GL_CALL(glDrawArrays(GL_TRIANGLE_STRIP, 0, 4)); +} + +void FixedPipeline::setProjectionMatrix(const GLfloat *projectionMatrix) { + if (!isActive()) { + return; + } + + GL_CALL(glMatrixMode(GL_PROJECTION)); + GL_CALL(glLoadMatrixf(projectionMatrix)); + + GL_CALL(glMatrixMode(GL_MODELVIEW)); + GL_CALL(glLoadIdentity()); +} +#endif // !USE_FORCED_GLES2 + +} // End of namespace OpenGL |