cecda64e2e
This remove the complexity of queriying the locations at runtime and allows for more performance and upfront binding specifications. The benefit of doing everything at creation time is that we can assign binding points in a predictable order which is going to be somewhat the same for every similar shader. This also rewrite GPU_vertformat_from_shader to not use shaderface. This is to keep the shaderface simple. If it becomes necessary to not query the shader after creation (i.e: vulkan?) we could just create the vert format in advance at compilation for PyGPU shaders. Reviewed By: brecht Differential Revision: https://developer.blender.org/D7879
117 lines
4.3 KiB
C
117 lines
4.3 KiB
C
/*
|
|
* 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) 2016 by Mike Erwin.
|
|
* All rights reserved.
|
|
*/
|
|
|
|
/** \file
|
|
* \ingroup gpu
|
|
*
|
|
* GPU shader interface (C --> GLSL)
|
|
*/
|
|
|
|
#ifndef __GPU_SHADER_INTERFACE_H__
|
|
#define __GPU_SHADER_INTERFACE_H__
|
|
|
|
#include "GPU_common.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef enum {
|
|
GPU_UNIFORM_NONE = 0, /* uninitialized/unknown */
|
|
|
|
GPU_UNIFORM_MODEL, /* mat4 ModelMatrix */
|
|
GPU_UNIFORM_VIEW, /* mat4 ViewMatrix */
|
|
GPU_UNIFORM_MODELVIEW, /* mat4 ModelViewMatrix */
|
|
GPU_UNIFORM_PROJECTION, /* mat4 ProjectionMatrix */
|
|
GPU_UNIFORM_VIEWPROJECTION, /* mat4 ViewProjectionMatrix */
|
|
GPU_UNIFORM_MVP, /* mat4 ModelViewProjectionMatrix */
|
|
|
|
GPU_UNIFORM_MODEL_INV, /* mat4 ModelMatrixInverse */
|
|
GPU_UNIFORM_VIEW_INV, /* mat4 ViewMatrixInverse */
|
|
GPU_UNIFORM_MODELVIEW_INV, /* mat4 ModelViewMatrixInverse */
|
|
GPU_UNIFORM_PROJECTION_INV, /* mat4 ProjectionMatrixInverse */
|
|
GPU_UNIFORM_VIEWPROJECTION_INV, /* mat4 ViewProjectionMatrixInverse */
|
|
|
|
GPU_UNIFORM_NORMAL, /* mat3 NormalMatrix */
|
|
GPU_UNIFORM_ORCO, /* vec4 OrcoTexCoFactors[] */
|
|
GPU_UNIFORM_CLIPPLANES, /* vec4 WorldClipPlanes[] */
|
|
|
|
GPU_UNIFORM_COLOR, /* vec4 color */
|
|
GPU_UNIFORM_BASE_INSTANCE, /* int baseInstance */
|
|
GPU_UNIFORM_RESOURCE_CHUNK, /* int resourceChunk */
|
|
GPU_UNIFORM_RESOURCE_ID, /* int resourceId */
|
|
GPU_UNIFORM_SRGB_TRANSFORM, /* bool srgbTarget */
|
|
|
|
GPU_UNIFORM_CUSTOM, /* custom uniform, not one of the above built-ins */
|
|
|
|
GPU_NUM_UNIFORMS, /* Special value, denotes number of builtin uniforms. */
|
|
} GPUUniformBuiltin;
|
|
|
|
typedef struct GPUShaderInput {
|
|
uint32_t name_offset;
|
|
uint32_t name_hash;
|
|
int32_t location;
|
|
/** Defined at interface creation or in shader. Only for Samplers, UBOs and Vertex Attribs. */
|
|
int32_t binding;
|
|
} GPUShaderInput;
|
|
|
|
#define GPU_SHADERINTERFACE_REF_ALLOC_COUNT 16
|
|
|
|
typedef struct GPUShaderInterface {
|
|
/** Buffer containing all inputs names separated by '\0'. */
|
|
char *name_buffer;
|
|
/** Reference to GPUBatches using this interface */
|
|
struct GPUBatch **batches;
|
|
uint batches_len;
|
|
/** Input counts. */
|
|
uint attribute_len;
|
|
uint ubo_len;
|
|
uint uniform_len;
|
|
/** Enabled bindpoints that needs to be fed with data. */
|
|
uint16_t enabled_attr_mask;
|
|
uint16_t enabled_ubo_mask;
|
|
uint64_t enabled_tex_mask;
|
|
/** Opengl Location of builtin uniforms. Fast access, no lookup needed. */
|
|
/* TODO replace by location only array. */
|
|
GPUShaderInput builtins[GPU_NUM_UNIFORMS];
|
|
/** Flat array. In this order: Attributes, Ubos, Uniforms. */
|
|
GPUShaderInput inputs[0];
|
|
} GPUShaderInterface;
|
|
|
|
GPUShaderInterface *GPU_shaderinterface_create(int32_t program_id);
|
|
void GPU_shaderinterface_discard(GPUShaderInterface *);
|
|
|
|
const GPUShaderInput *GPU_shaderinterface_uniform(const GPUShaderInterface *, const char *name);
|
|
const GPUShaderInput *GPU_shaderinterface_uniform_ensure(const GPUShaderInterface *,
|
|
const char *name);
|
|
const GPUShaderInput *GPU_shaderinterface_uniform_builtin(const GPUShaderInterface *,
|
|
GPUUniformBuiltin);
|
|
const GPUShaderInput *GPU_shaderinterface_ubo(const GPUShaderInterface *, const char *name);
|
|
const GPUShaderInput *GPU_shaderinterface_attr(const GPUShaderInterface *, const char *name);
|
|
|
|
/* keep track of batches using this interface */
|
|
void GPU_shaderinterface_add_batch_ref(GPUShaderInterface *, struct GPUBatch *);
|
|
void GPU_shaderinterface_remove_batch_ref(GPUShaderInterface *, struct GPUBatch *);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __GPU_SHADER_INTERFACE_H__ */
|