233 lines
		
	
	
		
			7.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			233 lines
		
	
	
		
			7.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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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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 *
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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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 *
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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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 *
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 * The Original Code is Copyright (C) 2005 Blender Foundation.
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 * All rights reserved.
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 */
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/** \file
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 * \ingroup gpu
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 */
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#ifndef __GPU_TEXTURE_H__
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#define __GPU_TEXTURE_H__
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#include "GPU_state.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct GPUVertBuf;
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struct Image;
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struct ImageUser;
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struct PreviewImage;
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struct rcti;
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struct GPUFrameBuffer;
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typedef struct GPUTexture GPUTexture;
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/* GPU Texture
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 * - always returns unsigned char RGBA textures
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 * - if texture with non square dimensions is created, depending on the
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 *   graphics card capabilities the texture may actually be stored in a
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 *   larger texture with power of two dimensions.
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 * - can use reference counting:
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 *   - reference counter after GPU_texture_create is 1
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 *   - GPU_texture_ref increases by one
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 *   - GPU_texture_free decreases by one, and frees if 0
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 * - if created with from_blender, will not free the texture
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 */
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/* Wrapper to supported OpenGL/Vulkan texture internal storage
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 * If you need a type just uncomment it. Be aware that some formats
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 * are not supported by renderbuffers. All of the following formats
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 * are part of the OpenGL 3.3 core
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 * specification. */
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typedef enum eGPUTextureFormat {
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	/* Formats texture & renderbuffer */
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	GPU_RGBA8UI,
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	GPU_RGBA8I,
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	GPU_RGBA8,
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	GPU_RGBA32UI,
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	GPU_RGBA32I,
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	GPU_RGBA32F,
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	GPU_RGBA16UI,
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	GPU_RGBA16I,
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	GPU_RGBA16F,
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	GPU_RGBA16,
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	GPU_RG8UI,
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	GPU_RG8I,
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	GPU_RG8,
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	GPU_RG32UI,
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	GPU_RG32I,
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	GPU_RG32F,
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	GPU_RG16UI,
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	GPU_RG16I,
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	GPU_RG16F,
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	GPU_RG16,
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	GPU_R8UI,
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	GPU_R8I,
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	GPU_R8,
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	GPU_R32UI,
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	GPU_R32I,
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	GPU_R32F,
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	GPU_R16UI,
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	GPU_R16I,
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	GPU_R16F,
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	GPU_R16, /* Max texture buffer format. */
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	/* Special formats texture & renderbuffer */
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#if 0
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	GPU_RGB10_A2,
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	GPU_RGB10_A2UI,
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#endif
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	GPU_R11F_G11F_B10F,
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	GPU_DEPTH32F_STENCIL8,
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	GPU_DEPTH24_STENCIL8,
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	/* Texture only format */
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	GPU_RGB16F,
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#if 0
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	GPU_RGBA16_SNORM,
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	GPU_RGBA8_SNORM,
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	GPU_RGB32F,
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	GPU_RGB32I,
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	GPU_RGB32UI,
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	GPU_RGB16_SNORM,
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	GPU_RGB16I,
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	GPU_RGB16UI,
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	GPU_RGB16,
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	GPU_RGB8_SNORM,
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	GPU_RGB8,
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	GPU_RGB8I,
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	GPU_RGB8UI,
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	GPU_RG16_SNORM,
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	GPU_RG8_SNORM,
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	GPU_R16_SNORM,
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	GPU_R8_SNORM,
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#endif
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	/* Special formats texture only */
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#if 0
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	GPU_SRGB8_A8,
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	GPU_SRGB8,
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	GPU_RGB9_E5,
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	GPU_COMPRESSED_RG_RGTC2,
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	GPU_COMPRESSED_SIGNED_RG_RGTC2,
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	GPU_COMPRESSED_RED_RGTC1,
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	GPU_COMPRESSED_SIGNED_RED_RGTC1,
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#endif
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	/* Depth Formats */
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	GPU_DEPTH_COMPONENT32F,
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	GPU_DEPTH_COMPONENT24,
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	GPU_DEPTH_COMPONENT16,
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} eGPUTextureFormat;
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typedef enum eGPUDataFormat {
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	GPU_DATA_FLOAT,
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	GPU_DATA_INT,
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	GPU_DATA_UNSIGNED_INT,
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	GPU_DATA_UNSIGNED_BYTE,
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	GPU_DATA_UNSIGNED_INT_24_8,
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	GPU_DATA_10_11_11_REV,
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} eGPUDataFormat;
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unsigned int GPU_texture_memory_usage_get(void);
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/* TODO make it static function again. (create function with eGPUDataFormat exposed) */
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GPUTexture *GPU_texture_create_nD(
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        int w, int h, int d, int n, const void *pixels,
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        eGPUTextureFormat tex_format, eGPUDataFormat gpu_data_format, int samples,
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        const bool can_rescale, char err_out[256]);
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GPUTexture *GPU_texture_create_1d(
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        int w, eGPUTextureFormat data_type, const float *pixels, char err_out[256]);
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GPUTexture *GPU_texture_create_1d_array(
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        int w, int h, eGPUTextureFormat data_type, const float *pixels, char err_out[256]);
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GPUTexture *GPU_texture_create_2d(
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        int w, int h, eGPUTextureFormat data_type, const float *pixels, char err_out[256]);
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GPUTexture *GPU_texture_create_2d_multisample(
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        int w, int h, eGPUTextureFormat data_type, const float *pixels, int samples, char err_out[256]);
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GPUTexture *GPU_texture_create_2d_array(
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        int w, int h, int d, eGPUTextureFormat data_type, const float *pixels, char err_out[256]);
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GPUTexture *GPU_texture_create_3d(
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        int w, int h, int d, eGPUTextureFormat data_type, const float *pixels, char err_out[256]);
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GPUTexture *GPU_texture_create_cube(
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        int w, eGPUTextureFormat data_type, const float *pixels, char err_out[256]);
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GPUTexture *GPU_texture_create_from_vertbuf(
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        struct GPUVertBuf *vert);
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GPUTexture *GPU_texture_create_buffer(
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        eGPUTextureFormat data_type, const uint buffer);
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GPUTexture *GPU_texture_from_bindcode(int textarget, int bindcode);
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GPUTexture *GPU_texture_from_blender(
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        struct Image *ima, struct ImageUser *iuser, int textarget, bool is_data);
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GPUTexture *GPU_texture_from_preview(struct PreviewImage *prv, int mipmap);
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void GPU_texture_add_mipmap(GPUTexture *tex, eGPUDataFormat gpu_data_format, int miplvl, const void *pixels);
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void GPU_texture_update(GPUTexture *tex, eGPUDataFormat data_format, const void *pixels);
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void GPU_texture_update_sub(
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        GPUTexture *tex, eGPUDataFormat gpu_data_format, const void *pixels,
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        int offset_x, int offset_y, int offset_z, int width, int height, int depth);
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void *GPU_texture_read(GPUTexture *tex, eGPUDataFormat gpu_data_format, int miplvl);
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void GPU_texture_read_rect(
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        GPUTexture *tex, eGPUDataFormat gpu_data_format,
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        const struct rcti *rect, void *r_buf);
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void GPU_invalid_tex_init(void);
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void GPU_invalid_tex_bind(int mode);
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void GPU_invalid_tex_free(void);
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void GPU_texture_free(GPUTexture *tex);
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void GPU_texture_ref(GPUTexture *tex);
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void GPU_texture_bind(GPUTexture *tex, int number);
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void GPU_texture_unbind(GPUTexture *tex);
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int GPU_texture_bound_number(GPUTexture *tex);
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void GPU_texture_generate_mipmap(GPUTexture *tex);
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void GPU_texture_compare_mode(GPUTexture *tex, bool use_compare);
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void GPU_texture_filter_mode(GPUTexture *tex, bool use_filter);
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void GPU_texture_mipmap_mode(GPUTexture *tex, bool use_mipmap, bool use_filter);
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void GPU_texture_wrap_mode(GPUTexture *tex, bool use_repeat);
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void GPU_texture_filters(GPUTexture *tex, eGPUFilterFunction min_filter, eGPUFilterFunction mag_filter);
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void GPU_texture_attach_framebuffer(GPUTexture *tex, struct GPUFrameBuffer *fb, int attachment);
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int GPU_texture_detach_framebuffer(GPUTexture *tex, struct GPUFrameBuffer *fb);
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int GPU_texture_target(const GPUTexture *tex);
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int GPU_texture_width(const GPUTexture *tex);
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int GPU_texture_height(const GPUTexture *tex);
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int GPU_texture_layers(const GPUTexture *tex);
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eGPUTextureFormat GPU_texture_format(const GPUTexture *tex);
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int GPU_texture_samples(const GPUTexture *tex);
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bool GPU_texture_cube(const GPUTexture *tex);
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bool GPU_texture_depth(const GPUTexture *tex);
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bool GPU_texture_stencil(const GPUTexture *tex);
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bool GPU_texture_integer(const GPUTexture *tex);
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int GPU_texture_opengl_bindcode(const GPUTexture *tex);
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void GPU_texture_get_mipmap_size(GPUTexture *tex, int lvl, int *size);
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#ifdef __cplusplus
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}
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#endif
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#endif  /* __GPU_TEXTURE_H__ */
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