mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-28 10:40:39 +00:00
114 lines
3.3 KiB
C
114 lines
3.3 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2017 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <gfx/math/matrix_4x4.h>
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#include <gfx/gl_capabilities.h>
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#ifdef HAVE_CONFIG_H
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#include "../../config.h"
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#endif
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#include "../drivers/gl_symlinks.h"
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#include "../video_coord_array.h"
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void gl_ff_vertex(const struct video_coords *coords)
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{
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#ifndef NO_GL_FF_VERTEX
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/* Fall back to fixed function-style if needed and possible. */
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glClientActiveTexture(GL_TEXTURE1);
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glTexCoordPointer(2, GL_FLOAT, 0, coords->lut_tex_coord);
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glClientActiveTexture(GL_TEXTURE0);
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glVertexPointer(2, GL_FLOAT, 0, coords->vertex);
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glEnableClientState(GL_VERTEX_ARRAY);
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glColorPointer(4, GL_FLOAT, 0, coords->color);
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glEnableClientState(GL_COLOR_ARRAY);
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glTexCoordPointer(2, GL_FLOAT, 0, coords->tex_coord);
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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#endif
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}
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void gl_ff_matrix(const math_matrix_4x4 *mat)
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{
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#ifndef NO_GL_FF_MATRIX
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math_matrix_4x4 ident;
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/* Fall back to fixed function-style if needed and possible. */
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glMatrixMode(GL_PROJECTION);
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glLoadMatrixf(mat->data);
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glMatrixMode(GL_MODELVIEW);
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matrix_4x4_identity(ident);
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glLoadMatrixf(ident.data);
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#endif
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}
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static void gl_size_format(GLint* internalFormat)
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{
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#ifndef HAVE_PSGL
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switch (*internalFormat)
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{
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case GL_RGB:
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/* FIXME: PS3 does not support this, neither does it have GL_RGB565_OES. */
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*internalFormat = GL_RGB565;
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break;
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case GL_RGBA:
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#ifdef HAVE_OPENGLES2
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*internalFormat = GL_RGBA8_OES;
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#else
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*internalFormat = GL_RGBA8;
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#endif
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break;
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}
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#endif
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}
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/* This function should only be used without mipmaps
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and when data == NULL */
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void gl_load_texture_image(GLenum target,
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GLint level,
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GLint internalFormat,
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GLsizei width,
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GLsizei height,
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GLint border,
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GLenum format,
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GLenum type,
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const GLvoid * data)
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{
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#ifndef HAVE_PSGL
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#ifdef HAVE_OPENGLES2
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if (gl_check_capability(GL_CAPS_TEX_STORAGE_EXT) && internalFormat != GL_BGRA_EXT)
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{
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gl_size_format(&internalFormat);
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glTexStorage2DEXT(target, 1, internalFormat, width, height);
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}
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#else
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if (gl_check_capability(GL_CAPS_TEX_STORAGE) && internalFormat != GL_BGRA_EXT)
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{
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gl_size_format(&internalFormat);
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glTexStorage2D(target, 1, internalFormat, width, height);
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}
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#endif
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else
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#endif
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{
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#ifdef HAVE_OPENGLES
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if (gl_check_capability(GL_CAPS_GLES3_SUPPORTED))
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#endif
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gl_size_format(&internalFormat);
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glTexImage2D(target, level, internalFormat, width, height, border, format, type, data);
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}
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}
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