Clément Foucault
1c91b6ee29
This removes code duplication and put an end to the old "create at request" batch creation. Also it uses the same vbo as the uv layer used for shading. Reducing VRAM usage. Also fixes the modified uv display in uv edit mode.
403 lines
12 KiB
C++
403 lines
12 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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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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* The Original Code is: all of this file.
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*
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* Contributor(s): Brecht Van Lommel.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file GPU_shader.h
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* \ingroup gpu
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*/
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#ifndef __GPU_SHADER_H__
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#define __GPU_SHADER_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct GPUShader GPUShader;
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struct GPUTexture;
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struct GPUUniformBuffer;
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/* GPU Shader
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* - only for fragment shaders now
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* - must call texture bind before setting a texture as uniform! */
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typedef enum GPUShaderTFBType {
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GPU_SHADER_TFB_NONE = 0, /* Transform feedback unsupported. */
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GPU_SHADER_TFB_POINTS = 1,
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GPU_SHADER_TFB_LINES = 2,
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GPU_SHADER_TFB_TRIANGLES = 3,
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} GPUShaderTFBType;
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GPUShader *GPU_shader_create(
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const char *vertexcode,
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const char *fragcode,
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const char *geocode,
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const char *libcode,
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const char *defines,
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const char *shader_name);
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GPUShader *GPU_shader_create_ex(
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const char *vertexcode,
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const char *fragcode,
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const char *geocode,
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const char *libcode,
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const char *defines,
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const GPUShaderTFBType tf_type,
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const char **tf_names,
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const int tf_count,
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const char *shader_name);
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void GPU_shader_free(GPUShader *shader);
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void GPU_shader_bind(GPUShader *shader);
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void GPU_shader_unbind(void);
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/* Returns true if transform feedback was successfully enabled. */
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bool GPU_shader_transform_feedback_enable(GPUShader *shader, unsigned int vbo_id);
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void GPU_shader_transform_feedback_disable(GPUShader *shader);
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int GPU_shader_get_program(GPUShader *shader);
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void *GPU_shader_get_interface(GPUShader *shader);
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int GPU_shader_get_uniform(GPUShader *shader, const char *name);
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int GPU_shader_get_builtin_uniform(GPUShader *shader, int builtin);
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int GPU_shader_get_uniform_block(GPUShader *shader, const char *name);
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void GPU_shader_uniform_vector(
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GPUShader *shader, int location, int length,
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int arraysize, const float *value);
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void GPU_shader_uniform_vector_int(
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GPUShader *shader, int location, int length,
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int arraysize, const int *value);
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void GPU_shader_uniform_buffer(GPUShader *shader, int location, struct GPUUniformBuffer *ubo);
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void GPU_shader_uniform_texture(GPUShader *shader, int location, struct GPUTexture *tex);
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void GPU_shader_uniform_float(GPUShader *shader, int location, float value);
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void GPU_shader_uniform_int(GPUShader *shader, int location, int value);
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int GPU_shader_get_attribute(GPUShader *shader, const char *name);
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/* Builtin/Non-generated shaders */
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typedef enum GPUBuiltinShader {
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/* specialized drawing */
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GPU_SHADER_TEXT,
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GPU_SHADER_TEXT_SIMPLE,
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GPU_SHADER_EDGES_FRONT_BACK_PERSP,
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GPU_SHADER_EDGES_FRONT_BACK_ORTHO,
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GPU_SHADER_EDGES_OVERLAY_SIMPLE,
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GPU_SHADER_EDGES_OVERLAY,
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GPU_SHADER_KEYFRAME_DIAMOND,
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GPU_SHADER_SIMPLE_LIGHTING,
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GPU_SHADER_SIMPLE_LIGHTING_FLAT_COLOR,
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GPU_SHADER_SIMPLE_LIGHTING_SMOOTH_COLOR,
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GPU_SHADER_SIMPLE_LIGHTING_SMOOTH_COLOR_ALPHA,
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/* for simple 2D drawing */
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/**
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* Take a single color for all the vertices and a 2D position for each vertex.
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*
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* \param color: uniform vec4
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* \param pos: in vec2
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*/
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GPU_SHADER_2D_UNIFORM_COLOR,
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/**
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* Take a 2D position and color for each vertex without color interpolation.
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*
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* \param color: in vec4
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* \param pos: in vec2
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*/
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GPU_SHADER_2D_FLAT_COLOR,
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/**
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* Take a 2D position and color for each vertex with linear interpolation in window space.
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*
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* \param color: in vec4
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* \param pos: in vec2
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*/
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GPU_SHADER_2D_SMOOTH_COLOR,
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GPU_SHADER_2D_SMOOTH_COLOR_DITHER,
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GPU_SHADER_2D_IMAGE,
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GPU_SHADER_2D_IMAGE_COLOR,
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GPU_SHADER_2D_IMAGE_DESATURATE_COLOR,
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GPU_SHADER_2D_IMAGE_ALPHA_COLOR,
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GPU_SHADER_2D_IMAGE_ALPHA,
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GPU_SHADER_2D_IMAGE_RECT_COLOR,
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GPU_SHADER_2D_IMAGE_MULTI_RECT_COLOR,
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GPU_SHADER_2D_IMAGE_MULTISAMPLE_2,
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GPU_SHADER_2D_IMAGE_MULTISAMPLE_4,
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GPU_SHADER_2D_IMAGE_MULTISAMPLE_8,
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GPU_SHADER_2D_IMAGE_MULTISAMPLE_16,
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GPU_SHADER_2D_IMAGE_MULTISAMPLE_2_DEPTH_TEST,
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GPU_SHADER_2D_IMAGE_MULTISAMPLE_4_DEPTH_TEST,
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GPU_SHADER_2D_IMAGE_MULTISAMPLE_8_DEPTH_TEST,
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GPU_SHADER_2D_IMAGE_MULTISAMPLE_16_DEPTH_TEST,
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GPU_SHADER_2D_CHECKER,
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GPU_SHADER_2D_DIAG_STRIPES,
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/* for simple 3D drawing */
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/**
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* Take a single color for all the vertices and a 3D position for each vertex.
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*
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* \param color: uniform vec4
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_UNIFORM_COLOR,
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GPU_SHADER_3D_UNIFORM_COLOR_INSTANCE,
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/**
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* Take a 3D position and color for each vertex without color interpolation.
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*
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* \param color: in vec4
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_FLAT_COLOR,
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/**
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* Take a 3D position and color for each vertex with perspective correct interpolation.
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*
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* \param color: in vec4
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_SMOOTH_COLOR,
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/**
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* Take a 3D position for each vertex and output only depth.
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*
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_DEPTH_ONLY,
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GPU_SHADER_3D_CLIPPED_UNIFORM_COLOR,
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/* basic image drawing */
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GPU_SHADER_2D_IMAGE_LINEAR_TO_SRGB,
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GPU_SHADER_2D_IMAGE_SHUFFLE_COLOR,
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GPU_SHADER_2D_IMAGE_MASK_UNIFORM_COLOR,
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/**
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* Draw texture with alpha. Take a 3D position and a 2D texture coordinate for each vertex.
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*
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* \param alpha: uniform float
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* \param image: uniform sampler2D
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* \param texCoord: in vec2
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_IMAGE_MODULATE_ALPHA,
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/**
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* Draw linearized depth texture relate to near and far distances.
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* Take a 3D position and a 2D texture coordinate for each vertex.
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*
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* \param znear: uniform float
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* \param zfar: uniform float
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* \param image: uniform sampler2D
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* \param texCoord: in vec2
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_IMAGE_DEPTH,
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GPU_SHADER_3D_IMAGE_DEPTH_COPY,
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/* stereo 3d */
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GPU_SHADER_2D_IMAGE_INTERLACE,
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/* points */
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/**
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* Draw round points with a hardcoded size.
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* Take a single color for all the vertices and a 2D position for each vertex.
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*
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* \param color: uniform vec4
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* \param pos: in vec2
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*/
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GPU_SHADER_2D_POINT_FIXED_SIZE_UNIFORM_COLOR,
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/**
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* Draw round points with a constant size.
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* Take a single color for all the vertices and a 2D position for each vertex.
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*
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* \param size: uniform float
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* \param color: uniform vec4
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* \param pos: in vec2
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*/
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GPU_SHADER_2D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA,
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/**
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* Draw round points with a constant size and an outline.
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* Take a single color for all the vertices and a 2D position for each vertex.
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*
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* \param size: uniform float
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* \param outlineWidth: uniform float
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* \param color: uniform vec4
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* \param outlineColor: uniform vec4
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* \param pos: in vec2
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*/
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GPU_SHADER_2D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_OUTLINE_AA,
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/**
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* Draw round points with a constant size and an outline. Take a 2D position and a color for each vertex.
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*
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* \param size: uniform float
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* \param outlineWidth: uniform float
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* \param outlineColor: uniform vec4
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* \param color: in vec4
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* \param pos: in vec2
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*/
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GPU_SHADER_2D_POINT_UNIFORM_SIZE_VARYING_COLOR_OUTLINE_AA,
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/**
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* Draw round points with a constant size and an outline. Take a 2D position and a color for each vertex.
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*
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* \param size: in float
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* \param color: in vec4
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* \param pos: in vec2
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*/
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GPU_SHADER_2D_POINT_VARYING_SIZE_VARYING_COLOR,
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/**
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* Draw round points with a hardcoded size.
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* Take a single color for all the vertices and a 3D position for each vertex.
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*
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* \param color: uniform vec4
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_POINT_FIXED_SIZE_UNIFORM_COLOR,
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/**
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* Draw round points with a hardcoded size.
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* Take a single color for all the vertices and a 3D position for each vertex.
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*
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* \param color: uniform vec4
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_POINT_FIXED_SIZE_VARYING_COLOR,
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/**
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* Draw round points with a constant size.
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* Take a single color for all the vertices and a 3D position for each vertex.
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*
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* \param size: uniform float
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* \param color: uniform vec4
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA,
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/**
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* Draw round points with a constant size and an outline.
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* Take a single color for all the vertices and a 3D position for each vertex.
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*
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* \param size: uniform float
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* \param outlineWidth: uniform float
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* \param color: uniform vec4
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* \param outlineColor: uniform vec4
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_OUTLINE_AA,
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/**
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* Draw round points with a constant size and an outline.
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* Take a single color for all the vertices and a 3D position for each vertex.
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*
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* \param color: uniform vec4
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* \param size: in float
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_POINT_VARYING_SIZE_UNIFORM_COLOR,
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/**
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* Draw round points with a constant size and an outline. Take a 3D position and a color for each vertex.
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*
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* \param size: in float
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* \param color: in vec4
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* \param pos: in vec3
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*/
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GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR,
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/* lines */
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GPU_SHADER_2D_LINE_DASHED_UNIFORM_COLOR,
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GPU_SHADER_3D_LINE_DASHED_UNIFORM_COLOR,
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/* lamp drawing */
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GPU_SHADER_3D_GROUNDPOINT,
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GPU_SHADER_3D_GROUNDLINE,
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GPU_SHADER_3D_SCREENSPACE_VARIYING_COLOR,
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/* bone drawing */
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GPU_SHADER_3D_OBJECTSPACE_VARIYING_COLOR,
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GPU_SHADER_3D_OBJECTSPACE_SIMPLE_LIGHTING_VARIYING_COLOR,
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/* camera drawing */
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GPU_SHADER_CAMERA,
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/* distance in front of objects */
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GPU_SHADER_DISTANCE_LINES,
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/* axis name */
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GPU_SHADER_3D_INSTANCE_SCREEN_ALIGNED_AXIS,
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GPU_SHADER_3D_INSTANCE_SCREEN_ALIGNED,
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/* instance */
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GPU_SHADER_INSTANCE_UNIFORM_COLOR,
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GPU_SHADER_INSTANCE_VARIYING_ID_VARIYING_SIZE, /* Uniformly scaled */
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GPU_SHADER_INSTANCE_VARIYING_COLOR_VARIYING_SIZE, /* Uniformly scaled */
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GPU_SHADER_INSTANCE_VARIYING_COLOR_VARIYING_SCALE,
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GPU_SHADER_INSTANCE_EDGES_VARIYING_COLOR,
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/* grease pencil drawing */
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GPU_SHADER_GPENCIL_STROKE,
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GPU_SHADER_GPENCIL_FILL,
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/* specialized for widget drawing */
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GPU_SHADER_2D_AREA_EDGES,
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GPU_SHADER_2D_WIDGET_BASE,
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GPU_SHADER_2D_WIDGET_BASE_INST,
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GPU_SHADER_2D_WIDGET_SHADOW,
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GPU_SHADER_2D_NODELINK,
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GPU_SHADER_2D_NODELINK_INST,
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/* specialized for edituv drawing */
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GPU_SHADER_2D_UV_UNIFORM_COLOR,
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GPU_SHADER_2D_UV_VERTS,
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GPU_SHADER_2D_UV_FACEDOTS,
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GPU_SHADER_2D_UV_EDGES,
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GPU_SHADER_2D_UV_EDGES_SMOOTH,
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GPU_SHADER_2D_UV_FACES,
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GPU_SHADER_2D_UV_FACES_STRETCH_AREA,
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GPU_SHADER_2D_UV_FACES_STRETCH_ANGLE,
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/* Selection */
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GPU_SHADER_3D_FLAT_SELECT_ID,
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GPU_SHADER_3D_UNIFORM_SELECT_ID,
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GPU_NUM_BUILTIN_SHADERS /* (not an actual shader) */
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} GPUBuiltinShader;
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/** Keep these in sync with:
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* - `gpu_shader_image_interlace_frag.glsl`
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* - `gpu_shader_image_rect_interlace_frag.glsl`
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*/
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typedef enum GPUInterlaceShader {
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GPU_SHADER_INTERLACE_ROW = 0,
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GPU_SHADER_INTERLACE_COLUMN = 1,
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GPU_SHADER_INTERLACE_CHECKER = 2,
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} GPUInterlaceShader;
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GPUShader *GPU_shader_get_builtin_shader(GPUBuiltinShader shader);
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void GPU_shader_get_builtin_shader_code(
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GPUBuiltinShader shader,
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const char **r_vert, const char **r_frag,
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const char **r_geom, const char **r_defines);
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void GPU_shader_free_builtin_shaders(void);
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/* Vertex attributes for shaders */
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#define GPU_MAX_ATTRIB 32
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typedef struct GPUVertexAttribs {
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struct {
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int type;
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int glindex;
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int glinfoindoex;
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int gltexco;
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int attribid;
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char name[64]; /* MAX_CUSTOMDATA_LAYER_NAME */
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} layer[GPU_MAX_ATTRIB];
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int totlayer;
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} GPUVertexAttribs;
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#ifdef __cplusplus
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}
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#endif
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#endif /* __GPU_SHADER_H__ */
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