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gtk2/gsk/gskglshader.h

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Add GskGLShaderNode and GskGLShader A GskGLShader is an abstraction of a GLSL fragment shader that can produce pixel values given inputs: * N (currently max 4) textures * Current arguments for the shader uniform Uniform types are: float,(u)int,bool,vec234) There is also a builder for the uniform arguments which are passed around as immutable GBytes in the built form. A GskGLShaderNode is a render node that renders a GskGLShader inside a specified rectangular bounds. It renders its child nodes as textures and passes those as texture arguments to the shader. You also pass it a uniform arguments object.
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/* GSK - The GTK Scene Kit
*
* Copyright 2020 Red Hat Inc
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GSK_GL_SHADER_H__
#define __GSK_GL_SHADER_H__
#if !defined (__GSK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gsk/gsk.h> can be included directly."
#endif
#include <stdarg.h>
#include <gsk/gsktypes.h>
#include <gsk/gskenums.h>
G_BEGIN_DECLS
#define GSK_TYPE_SHADER_ARGS_BUILDER (gsk_shader_args_builder_get_type ())
docs: Annotate the GL shader objects
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/**
* GskShaderArgsBuilder:
*
* An object to build the uniforms data for a #GskGLShader.
*/
Add GskGLShaderNode and GskGLShader A GskGLShader is an abstraction of a GLSL fragment shader that can produce pixel values given inputs: * N (currently max 4) textures * Current arguments for the shader uniform Uniform types are: float,(u)int,bool,vec234) There is also a builder for the uniform arguments which are passed around as immutable GBytes in the built form. A GskGLShaderNode is a render node that renders a GskGLShader inside a specified rectangular bounds. It renders its child nodes as textures and passes those as texture arguments to the shader. You also pass it a uniform arguments object.
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typedef struct _GskShaderArgsBuilder GskShaderArgsBuilder;
#define GSK_TYPE_GL_SHADER (gsk_gl_shader_get_type ())
GDK_AVAILABLE_IN_ALL
G_DECLARE_FINAL_TYPE (GskGLShader, gsk_gl_shader, GSK, GL_SHADER, GObject)
GDK_AVAILABLE_IN_ALL
GskGLShader * gsk_gl_shader_new_from_bytes (GBytes *sourcecode);
GDK_AVAILABLE_IN_ALL
GskGLShader * gsk_gl_shader_new_from_resource (const char *resource_path);
GDK_AVAILABLE_IN_ALL
gboolean gsk_gl_shader_compile (GskGLShader *shader,
GskRenderer *renderer,
GError **error);
GDK_AVAILABLE_IN_ALL
GBytes * gsk_gl_shader_get_source (GskGLShader *shader);
GDK_AVAILABLE_IN_ALL
const char * gsk_gl_shader_get_resource (GskGLShader *shader);
GDK_AVAILABLE_IN_ALL
int gsk_gl_shader_get_n_textures (GskGLShader *shader);
GDK_AVAILABLE_IN_ALL
int gsk_gl_shader_get_n_uniforms (GskGLShader *shader);
GDK_AVAILABLE_IN_ALL
const char * gsk_gl_shader_get_uniform_name (GskGLShader *shader,
gsk: Add some more shader docs Do a pass over the docs and address minor inconsistencies, cosmetics and formatting differences. Mention GSK_DEBUG=shaders.
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int idx);
Add GskGLShaderNode and GskGLShader A GskGLShader is an abstraction of a GLSL fragment shader that can produce pixel values given inputs: * N (currently max 4) textures * Current arguments for the shader uniform Uniform types are: float,(u)int,bool,vec234) There is also a builder for the uniform arguments which are passed around as immutable GBytes in the built form. A GskGLShaderNode is a render node that renders a GskGLShader inside a specified rectangular bounds. It renders its child nodes as textures and passes those as texture arguments to the shader. You also pass it a uniform arguments object.
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GDK_AVAILABLE_IN_ALL
int gsk_gl_shader_find_uniform_by_name (GskGLShader *shader,
gsk: Add some more shader docs Do a pass over the docs and address minor inconsistencies, cosmetics and formatting differences. Mention GSK_DEBUG=shaders.
2020-09-29 15:32:03 +00:00
const char *name);
Add GskGLShaderNode and GskGLShader A GskGLShader is an abstraction of a GLSL fragment shader that can produce pixel values given inputs: * N (currently max 4) textures * Current arguments for the shader uniform Uniform types are: float,(u)int,bool,vec234) There is also a builder for the uniform arguments which are passed around as immutable GBytes in the built form. A GskGLShaderNode is a render node that renders a GskGLShader inside a specified rectangular bounds. It renders its child nodes as textures and passes those as texture arguments to the shader. You also pass it a uniform arguments object.
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GDK_AVAILABLE_IN_ALL
GskGLUniformType gsk_gl_shader_get_uniform_type (GskGLShader *shader,
gsk: Add some more shader docs Do a pass over the docs and address minor inconsistencies, cosmetics and formatting differences. Mention GSK_DEBUG=shaders.
2020-09-29 15:32:03 +00:00
int idx);
Add GskGLShaderNode and GskGLShader A GskGLShader is an abstraction of a GLSL fragment shader that can produce pixel values given inputs: * N (currently max 4) textures * Current arguments for the shader uniform Uniform types are: float,(u)int,bool,vec234) There is also a builder for the uniform arguments which are passed around as immutable GBytes in the built form. A GskGLShaderNode is a render node that renders a GskGLShader inside a specified rectangular bounds. It renders its child nodes as textures and passes those as texture arguments to the shader. You also pass it a uniform arguments object.
2020-09-18 15:46:57 +00:00
GDK_AVAILABLE_IN_ALL
int gsk_gl_shader_get_uniform_offset (GskGLShader *shader,
gsk: Add some more shader docs Do a pass over the docs and address minor inconsistencies, cosmetics and formatting differences. Mention GSK_DEBUG=shaders.
2020-09-29 15:32:03 +00:00
int idx);
Add GskGLShaderNode and GskGLShader A GskGLShader is an abstraction of a GLSL fragment shader that can produce pixel values given inputs: * N (currently max 4) textures * Current arguments for the shader uniform Uniform types are: float,(u)int,bool,vec234) There is also a builder for the uniform arguments which are passed around as immutable GBytes in the built form. A GskGLShaderNode is a render node that renders a GskGLShader inside a specified rectangular bounds. It renders its child nodes as textures and passes those as texture arguments to the shader. You also pass it a uniform arguments object.
2020-09-18 15:46:57 +00:00
GDK_AVAILABLE_IN_ALL
gsk: Add some more shader docs Do a pass over the docs and address minor inconsistencies, cosmetics and formatting differences. Mention GSK_DEBUG=shaders.
2020-09-29 15:32:03 +00:00
gsize gsk_gl_shader_get_args_size (GskGLShader *shader);
Add GskGLShaderNode and GskGLShader A GskGLShader is an abstraction of a GLSL fragment shader that can produce pixel values given inputs: * N (currently max 4) textures * Current arguments for the shader uniform Uniform types are: float,(u)int,bool,vec234) There is also a builder for the uniform arguments which are passed around as immutable GBytes in the built form. A GskGLShaderNode is a render node that renders a GskGLShader inside a specified rectangular bounds. It renders its child nodes as textures and passes those as texture arguments to the shader. You also pass it a uniform arguments object.
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/* Helpers for managing shader args */
GDK_AVAILABLE_IN_ALL
GBytes * gsk_gl_shader_format_args_va (GskGLShader *shader,
va_list uniforms);
GDK_AVAILABLE_IN_ALL
GBytes * gsk_gl_shader_format_args (GskGLShader *shader,
...) G_GNUC_NULL_TERMINATED;
GDK_AVAILABLE_IN_ALL
float gsk_gl_shader_get_arg_float (GskGLShader *shader,
GBytes *args,
int idx);
GDK_AVAILABLE_IN_ALL
gint32 gsk_gl_shader_get_arg_int (GskGLShader *shader,
GBytes *args,
int idx);
GDK_AVAILABLE_IN_ALL
guint32 gsk_gl_shader_get_arg_uint (GskGLShader *shader,
GBytes *args,
int idx);
GDK_AVAILABLE_IN_ALL
gboolean gsk_gl_shader_get_arg_bool (GskGLShader *shader,
GBytes *args,
int idx);
GDK_AVAILABLE_IN_ALL
void gsk_gl_shader_get_arg_vec2 (GskGLShader *shader,
GBytes *args,
int idx,
graphene_vec2_t *out_value);
GDK_AVAILABLE_IN_ALL
void gsk_gl_shader_get_arg_vec3 (GskGLShader *shader,
GBytes *args,
int idx,
graphene_vec3_t *out_value);
GDK_AVAILABLE_IN_ALL
void gsk_gl_shader_get_arg_vec4 (GskGLShader *shader,
GBytes *args,
int idx,
graphene_vec4_t *out_value);
GDK_AVAILABLE_IN_ALL
GType gsk_shader_args_builder_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GskShaderArgsBuilder *gsk_shader_args_builder_new (GskGLShader *shader,
GBytes *initial_values);
GDK_AVAILABLE_IN_ALL
GBytes * gsk_shader_args_builder_to_args (GskShaderArgsBuilder *builder);
GDK_AVAILABLE_IN_ALL
GBytes * gsk_shader_args_builder_free_to_args (GskShaderArgsBuilder *builder);
GDK_AVAILABLE_IN_ALL
GskShaderArgsBuilder *gsk_shader_args_builder_ref (GskShaderArgsBuilder *builder);
GDK_AVAILABLE_IN_ALL
void gsk_shader_args_builder_unref (GskShaderArgsBuilder *builder);
GDK_AVAILABLE_IN_ALL
void gsk_shader_args_builder_set_float (GskShaderArgsBuilder *builder,
int idx,
float value);
GDK_AVAILABLE_IN_ALL
void gsk_shader_args_builder_set_int (GskShaderArgsBuilder *builder,
int idx,
gint32 value);
GDK_AVAILABLE_IN_ALL
void gsk_shader_args_builder_set_uint (GskShaderArgsBuilder *builder,
int idx,
guint32 value);
GDK_AVAILABLE_IN_ALL
void gsk_shader_args_builder_set_bool (GskShaderArgsBuilder *builder,
int idx,
gboolean value);
GDK_AVAILABLE_IN_ALL
void gsk_shader_args_builder_set_vec2 (GskShaderArgsBuilder *builder,
int idx,
const graphene_vec2_t *value);
GDK_AVAILABLE_IN_ALL
void gsk_shader_args_builder_set_vec3 (GskShaderArgsBuilder *builder,
int idx,
const graphene_vec3_t *value);
GDK_AVAILABLE_IN_ALL
void gsk_shader_args_builder_set_vec4 (GskShaderArgsBuilder *builder,
int idx,
const graphene_vec4_t *value);
G_END_DECLS
#endif /* __GSK_GL_SHADER_H__ */
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