Clément Foucault
21c658b718
This solution involves adding a uniform to each fragment shader that is used by gizmo drawing and use the framebuffer state to set this uniform accordingly. This solution can also be carried to external shaders (addons). A single line of code would then be enough to fix the issue. The only trickery here is the dummy define: `#define srgb_to_framebuffer_space(a)` This is in order to avoid breaking other DRW shaders that use the same fragment shader code but do not need the tranformation. Related to T74139 Reviewed By: brecht, campbellbarton Differential Revision: https://developer.blender.org/D7261
116 lines
4.3 KiB
C++
116 lines
4.3 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) 2016 by Mike Erwin.
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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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* GPU shader interface (C --> GLSL)
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*/
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#ifndef __GPU_SHADER_INTERFACE_H__
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#define __GPU_SHADER_INTERFACE_H__
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#include "GPU_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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GPU_UNIFORM_NONE = 0, /* uninitialized/unknown */
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GPU_UNIFORM_MODEL, /* mat4 ModelMatrix */
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GPU_UNIFORM_VIEW, /* mat4 ViewMatrix */
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GPU_UNIFORM_MODELVIEW, /* mat4 ModelViewMatrix */
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GPU_UNIFORM_PROJECTION, /* mat4 ProjectionMatrix */
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GPU_UNIFORM_VIEWPROJECTION, /* mat4 ViewProjectionMatrix */
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GPU_UNIFORM_MVP, /* mat4 ModelViewProjectionMatrix */
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GPU_UNIFORM_MODEL_INV, /* mat4 ModelMatrixInverse */
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GPU_UNIFORM_VIEW_INV, /* mat4 ViewMatrixInverse */
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GPU_UNIFORM_MODELVIEW_INV, /* mat4 ModelViewMatrixInverse */
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GPU_UNIFORM_PROJECTION_INV, /* mat4 ProjectionMatrixInverse */
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GPU_UNIFORM_VIEWPROJECTION_INV, /* mat4 ViewProjectionMatrixInverse */
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GPU_UNIFORM_NORMAL, /* mat3 NormalMatrix */
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GPU_UNIFORM_ORCO, /* vec4 OrcoTexCoFactors[] */
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GPU_UNIFORM_CLIPPLANES, /* vec4 WorldClipPlanes[] */
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GPU_UNIFORM_COLOR, /* vec4 color */
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GPU_UNIFORM_BASE_INSTANCE, /* int baseInstance */
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GPU_UNIFORM_RESOURCE_CHUNK, /* int resourceChunk */
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GPU_UNIFORM_RESOURCE_ID, /* int resourceId */
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GPU_UNIFORM_SRGB_TRANSFORM, /* bool srgbTarget */
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GPU_UNIFORM_CUSTOM, /* custom uniform, not one of the above built-ins */
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GPU_NUM_UNIFORMS, /* Special value, denotes number of builtin uniforms. */
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} GPUUniformBuiltin;
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typedef struct GPUShaderInput {
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struct GPUShaderInput *next;
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uint32_t name_offset;
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uint name_hash;
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/** Only for uniform inputs. */
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GPUUniformBuiltin builtin_type;
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/** Only for attribute inputs. */
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uint32_t gl_type;
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/** Only for attribute inputs. */
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int32_t size;
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int32_t location;
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} GPUShaderInput;
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#define GPU_NUM_SHADERINTERFACE_BUCKETS 257
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#define GPU_SHADERINTERFACE_REF_ALLOC_COUNT 16
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typedef struct GPUShaderInterface {
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int32_t program;
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uint32_t name_buffer_offset;
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GPUShaderInput *attr_buckets[GPU_NUM_SHADERINTERFACE_BUCKETS];
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GPUShaderInput *uniform_buckets[GPU_NUM_SHADERINTERFACE_BUCKETS];
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GPUShaderInput *ubo_buckets[GPU_NUM_SHADERINTERFACE_BUCKETS];
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GPUShaderInput *builtin_uniforms[GPU_NUM_UNIFORMS];
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char *name_buffer;
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struct GPUBatch **batches; /* references to batches using this interface */
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uint batches_len;
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/** All enabled attributes in this shader. Used to set default values for unbound attributes. */
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uint16_t enabled_attr_mask;
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} GPUShaderInterface;
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GPUShaderInterface *GPU_shaderinterface_create(int32_t program_id);
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void GPU_shaderinterface_discard(GPUShaderInterface *);
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const GPUShaderInput *GPU_shaderinterface_uniform(const GPUShaderInterface *, const char *name);
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const GPUShaderInput *GPU_shaderinterface_uniform_ensure(const GPUShaderInterface *,
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const char *name);
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const GPUShaderInput *GPU_shaderinterface_uniform_builtin(const GPUShaderInterface *,
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GPUUniformBuiltin);
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const GPUShaderInput *GPU_shaderinterface_ubo(const GPUShaderInterface *, const char *name);
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const GPUShaderInput *GPU_shaderinterface_attr(const GPUShaderInterface *, const char *name);
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/* keep track of batches using this interface */
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void GPU_shaderinterface_add_batch_ref(GPUShaderInterface *, struct GPUBatch *);
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void GPU_shaderinterface_remove_batch_ref(GPUShaderInterface *, struct GPUBatch *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __GPU_SHADER_INTERFACE_H__ */
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