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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Brecht Van Lommel.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file GPU_shader.h
* \ingroup gpu
*/
#ifndef __GPU_SHADER_H__
#define __GPU_SHADER_H__
#ifdef __cplusplus
extern "C" {
#endif
typedef struct GPUShader GPUShader;
struct GPUTexture;
struct GPUUniformBuffer;
/* GPU Shader
* - only for fragment shaders now
* - must call texture bind before setting a texture as uniform! */
enum {
GPU_SHADER_FLAGS_NONE = 0,
GPU_SHADER_FLAGS_SPECIAL_OPENSUBDIV = (1 << 0),
GPU_SHADER_FLAGS_NEW_SHADING = (1 << 1),
};
GPUShader *GPU_shader_create(
const char *vertexcode,
const char *fragcode,
const char *geocode,
const char *libcode,
const char *defines);
GPUShader *GPU_shader_create_ex(
const char *vertexcode,
const char *fragcode,
const char *geocode,
const char *libcode,
const char *defines,
const int flags);
void GPU_shader_free(GPUShader *shader);
void GPU_shader_bind(GPUShader *shader);
void GPU_shader_unbind(void);
int GPU_shader_get_program(GPUShader *shader);
void *GPU_shader_get_interface(GPUShader *shader);
void *GPU_fx_shader_get_interface(GPUShader *shader);
void GPU_fx_shader_set_interface(GPUShader *shader, void *interface);
int GPU_shader_get_uniform(GPUShader *shader, const char *name);
int GPU_shader_get_uniform_block(GPUShader *shader, const char *name);
void GPU_shader_uniform_vector(GPUShader *shader, int location, int length,
int arraysize, const float *value);
void GPU_shader_uniform_vector_int(GPUShader *shader, int location, int length,
int arraysize, const int *value);
void GPU_shader_uniform_buffer(GPUShader *shader, int location, struct GPUUniformBuffer *ubo);
void GPU_shader_uniform_texture(GPUShader *shader, int location, struct GPUTexture *tex);
void GPU_shader_uniform_int(GPUShader *shader, int location, int value);
void GPU_shader_geometry_stage_primitive_io(GPUShader *shader, int input, int output, int number);
int GPU_shader_get_attribute(GPUShader *shader, const char *name);
/* Builtin/Non-generated shaders */
typedef enum GPUBuiltinShader {
GPU_SHADER_VSM_STORE,
GPU_SHADER_SEP_GAUSSIAN_BLUR,
GPU_SHADER_SMOKE,
GPU_SHADER_SMOKE_FIRE,
GPU_SHADER_SMOKE_COBA,
/* specialized drawing */
GPU_SHADER_TEXT,
GPU_SHADER_EDGES_FRONT_BACK_PERSP,
GPU_SHADER_EDGES_FRONT_BACK_ORTHO,
GPU_SHADER_EDGES_OVERLAY_SIMPLE,
GPU_SHADER_EDGES_OVERLAY,
GPU_SHADER_KEYFRAME_DIAMOND,
GPU_SHADER_SIMPLE_LIGHTING,
GPU_SHADER_SIMPLE_LIGHTING_FLAT_COLOR,
GPU_SHADER_SIMPLE_LIGHTING_SMOOTH_COLOR,
GPU_SHADER_SIMPLE_LIGHTING_SMOOTH_COLOR_ALPHA,
/* for simple 2D drawing */
GPU_SHADER_2D_UNIFORM_COLOR,
GPU_SHADER_2D_FLAT_COLOR,
GPU_SHADER_2D_SMOOTH_COLOR,
GPU_SHADER_2D_IMAGE_COLOR,
GPU_SHADER_2D_IMAGE_ALPHA_COLOR,
GPU_SHADER_2D_CHECKER,
GPU_SHADER_2D_DIAG_STRIPES,
/* for simple 3D drawing */
GPU_SHADER_3D_UNIFORM_COLOR,
GPU_SHADER_3D_UNIFORM_COLOR_INSTANCE,
GPU_SHADER_3D_FLAT_COLOR,
GPU_SHADER_3D_FLAT_COLOR_U32, /* use for select-id's */
GPU_SHADER_3D_SMOOTH_COLOR,
GPU_SHADER_3D_DEPTH_ONLY,
GPU_SHADER_3D_CLIPPED_UNIFORM_COLOR,
/* basic image drawing */
GPU_SHADER_2D_IMAGE_LINEAR_TO_SRGB,
GPU_SHADER_2D_IMAGE_SHUFFLE_COLOR,
GPU_SHADER_2D_IMAGE_MASK_UNIFORM_COLOR,
GPU_SHADER_3D_IMAGE_MODULATE_ALPHA,
GPU_SHADER_3D_IMAGE_RECT_MODULATE_ALPHA,
GPU_SHADER_3D_IMAGE_DEPTH,
/* stereo 3d */
GPU_SHADER_2D_IMAGE_INTERLACE,
/* points */
GPU_SHADER_2D_POINT_FIXED_SIZE_UNIFORM_COLOR,
GPU_SHADER_2D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA,
GPU_SHADER_2D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_OUTLINE_AA,
GPU_SHADER_2D_POINT_UNIFORM_SIZE_VARYING_COLOR_OUTLINE_AA,
GPU_SHADER_2D_POINT_VARYING_SIZE_VARYING_COLOR,
GPU_SHADER_3D_POINT_FIXED_SIZE_UNIFORM_COLOR,
GPU_SHADER_3D_POINT_FIXED_SIZE_VARYING_COLOR,
GPU_SHADER_3D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA,
GPU_SHADER_3D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_OUTLINE_AA,
GPU_SHADER_3D_POINT_VARYING_SIZE_UNIFORM_COLOR,
GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR,
/* lines */
GPU_SHADER_2D_LINE_DASHED_COLOR,
GPU_SHADER_3D_LINE_DASHED_COLOR,
/* lamp drawing */
GPU_SHADER_3D_GROUNDPOINT,
GPU_SHADER_3D_GROUNDLINE,
GPU_SHADER_3D_SCREENSPACE_VARIYING_COLOR,
/* bone drawing */
GPU_SHADER_3D_OBJECTSPACE_VARIYING_COLOR,
GPU_SHADER_3D_OBJECTSPACE_SIMPLE_LIGHTING_VARIYING_COLOR,
/* camera drawing */
GPU_SHADER_CAMERA,
/* distance in front of objects */
GPU_SHADER_DISTANCE_LINES,
/* axis name */
GPU_SHADER_3D_INSTANCE_SCREEN_ALIGNED_AXIS,
GPU_SHADER_3D_INSTANCE_SCREEN_ALIGNED,
/* instance */
GPU_SHADER_INSTANCE_UNIFORM_COLOR,
GPU_SHADER_INSTANCE_VARIYING_COLOR_VARIYING_SIZE, /* Uniformly scaled */
GPU_SHADER_INSTANCE_VARIYING_COLOR_VARIYING_SCALE,
GPU_SHADER_INSTANCE_EDGES_VARIYING_COLOR,
GPU_SHADER_3D_INSTANCE_BONE_ENVELOPE_SOLID,
GPU_SHADER_3D_INSTANCE_BONE_ENVELOPE_WIRE,
GPU_NUM_BUILTIN_SHADERS /* (not an actual shader) */
} GPUBuiltinShader;
/* Keep these in sync with:
* gpu_shader_image_interlace_frag.glsl
* gpu_shader_image_rect_interlace_frag.glsl
**/
typedef enum GPUInterlaceShader {
GPU_SHADER_INTERLACE_ROW = 0,
GPU_SHADER_INTERLACE_COLUMN = 1,
GPU_SHADER_INTERLACE_CHECKER = 2,
} GPUInterlaceShader;
GPUShader *GPU_shader_get_builtin_shader(GPUBuiltinShader shader);
GPUShader *GPU_shader_get_builtin_fx_shader(int effects, bool persp);
void GPU_shader_free_builtin_shaders(void);
/* Vertex attributes for shaders */
#define GPU_MAX_ATTRIB 32
typedef struct GPUVertexAttribs {
struct {
int type;
int glindex;
int glinfoindoex;
int gltexco;
int attribid;
char name[64]; /* MAX_CUSTOMDATA_LAYER_NAME */
} layer[GPU_MAX_ATTRIB];
int totlayer;
} GPUVertexAttribs;
#ifdef __cplusplus
}
#endif
#endif /* __GPU_SHADER_H__ */
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