src/mesa/main/shaderimage.h

   1 /*
   2  * Copyright 2013 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Francisco Jerez <currojerez@riseup.net>
  25  */
  26
  27 #ifndef SHADERIMAGE_H
  28 #define SHADERIMAGE_H
  29
  30 #include "glheader.h"
  31 #include "formats.h"
  32
  33 #ifdef __cplusplus
  34 extern "C" {
  35 #endif
  36
  37 struct gl_context;
  38
  39 /**
  40  * Get the matching mesa_format for a shader image format GL enum.
  41  */
  42 mesa_format
  43 _mesa_get_shader_image_format(GLenum format);
  44
  45 /**
  46  * Initialize a context's shader image units to the default state.
  47  */
  48 void
  49 _mesa_init_image_units(struct gl_context *ctx);
  50
  51 /**
  52  * Recalculate the \c _Valid flag of a context's shader image units.
  53  *
  54  * To be called when the state of any texture bound to an image unit
  55  * changes.
  56  */
  57 void
  58 _mesa_validate_image_units(struct gl_context *ctx);
  59
  60 void GLAPIENTRY
  61 _mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
  62                        GLboolean layered, GLint layer, GLenum access,
  63                        GLenum format);
  64
  65 void GLAPIENTRY
  66 _mesa_BindImageTextures(GLuint first, GLsizei count, const GLuint *textures);
  67
  68 void GLAPIENTRY
  69 _mesa_MemoryBarrier(GLbitfield barriers);
  70
  71 #ifdef __cplusplus
  72 }
  73 #endif
  74
  75 #endif