1 /**************************************************************************
3 * Copyright 2013-2014 RAD Game Tools and Valve Software
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7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
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10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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24 **************************************************************************/
26 // File: vogl_texture_state.h
27 #ifndef VOGL_TEXTURE_STATE_H
28 #define VOGL_TEXTURE_STATE_H
30 #include "vogl_core.h"
31 #include "vogl_ktx_texture.h"
32 #include "vogl_context_info.h"
33 #include "vogl_general_context_state.h"
34 #include "vogl_blob_manager.h"
37 class vogl_texture_state : public vogl_gl_object_state
41 virtual ~vogl_texture_state();
43 virtual vogl_gl_object_state_type get_type() const
47 virtual vogl_namespace_t get_handle_namespace() const
49 return VOGL_NAMESPACE_TEXTURES;
52 // Creates snapshot of a texture handle
53 virtual bool snapshot(const vogl_context_info &context_info, vogl_handle_remapper &remapper, GLuint64 handle, GLenum target);
55 // Creates and restores a texture
56 virtual bool restore(const vogl_context_info &context_info, vogl_handle_remapper &remapper, GLuint64 &handle) const;
58 virtual bool remap_handles(vogl_handle_remapper &remapper);
62 virtual bool is_valid() const
67 virtual bool serialize(json_node &node, vogl_blob_manager &blob_manager) const;
68 virtual bool deserialize(const json_node &node, const vogl_blob_manager &blob_manager);
70 virtual GLuint64 get_snapshot_handle() const
72 return m_snapshot_handle;
75 GLenum get_target() const
80 // Buffer textures will have a GL_TEXTURE_INTERNAL_FORMAT defined in m_params, but nothing else.
81 GLuint get_buffer() const
86 // Note: Multisampling textures may only have 1 sample!
87 uint get_num_samples() const
92 vogl::ktx_texture &get_texture(uint sample_index = 0)
94 return m_textures[sample_index];
97 const vogl::ktx_texture &get_texture(uint sample_index = 0) const
99 return m_textures[sample_index];
102 const vogl_state_vector &get_params() const
107 uint get_num_levels() const
109 return m_level_params[0].size();
112 const vogl_state_vector &get_level_params(uint face, uint level) const
114 return m_level_params[face][level];
117 // Content comparison, ignores handle.
118 virtual bool compare_restorable_state(const vogl_gl_object_state &rhs_obj) const;
121 GLuint m_snapshot_handle;
126 enum { cMaxSamples = 32 };
127 vogl::ktx_texture m_textures[cMaxSamples];
129 vogl_state_vector m_params;
131 typedef vogl::vector<vogl_state_vector> vogl_state_vector_array;
138 // For MSAA textures: m_level_params are the params of the original MSAA texture
139 vogl_state_vector_array m_level_params[cCubeMapFaces];
141 bool m_is_unquerable;
144 bool set_tex_parameter(GLenum pname) const;
149 VOGL_DEFINE_BITWISE_MOVABLE(vogl_texture_state);
152 #endif // VOGL_TEXTURE_STATE_H