mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-12-26 13:41:07 +00:00
gsk: Consolidate program creation and storage
We should use ShaderBuilder to create and store programs for the GL renderer. This allows us to simplify the creation of programs (by moving the compilation phase into the ShaderBuilder::create_program() method), and move towards the ability to create multiple programs and just keep a reference to the program id.
This commit is contained in:
Emmanuele Bassi
parent
43974761bb
commit
4cda720ab9
@ -87,7 +87,9 @@ struct _GskGLRenderer
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GQuark uniforms[N_UNIFORMS];
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GQuark attributes[N_ATTRIBUTES];
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GskShaderBuilder *blend_program;
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GskShaderBuilder *shader_builder;
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int blend_program_id;
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guint vao_id;
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@ -295,9 +297,6 @@ static gboolean
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gsk_gl_renderer_create_programs (GskGLRenderer *self)
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{
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GskShaderBuilder *builder;
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const char *vertex_preamble;
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const char *fragment_preamble;
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int vertex_id = -1, fragment_id = -1;
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GError *error = NULL;
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gboolean res = FALSE;
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@ -317,26 +316,23 @@ gsk_gl_renderer_create_programs (GskGLRenderer *self)
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if (gdk_gl_context_get_use_es (self->context))
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{
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gsk_shader_builder_set_version (builder, SHADER_VERSION_GLES);
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gsk_shader_builder_set_vertex_preamble (builder, "es2_common.vs.glsl");
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gsk_shader_builder_set_fragment_preamble (builder, "es2_common.fs.glsl");
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gsk_shader_builder_add_define (builder, "GSK_GLES", "1");
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vertex_preamble = "gles_common.vs.glsl";
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fragment_preamble = "gles_common.fs.glsl";
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}
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else if (gdk_gl_context_is_legacy (self->context))
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{
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gsk_shader_builder_set_version (builder, SHADER_VERSION_GL_LEGACY);
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gsk_shader_builder_set_vertex_preamble (builder, "gl_common.vs.glsl");
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gsk_shader_builder_set_fragment_preamble (builder, "gl_common.fs.glsl");
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gsk_shader_builder_add_define (builder, "GSK_LEGACY", "1");
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vertex_preamble = "gl_common.vs.glsl";
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fragment_preamble = "gl_common.fs.glsl";
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}
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else
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{
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gsk_shader_builder_set_version (builder, SHADER_VERSION_GL3);
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gsk_shader_builder_set_vertex_preamble (builder, "gl3_common.vs.glsl");
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gsk_shader_builder_set_fragment_preamble (builder, "gl3_common.fs.glsl");
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gsk_shader_builder_add_define (builder, "GSK_GL3", "1");
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vertex_preamble = "gl3_common.vs.glsl";
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fragment_preamble = "gl3_common.fs.glsl";
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}
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#ifdef G_ENABLE_DEBUG
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@ -344,62 +340,28 @@ gsk_gl_renderer_create_programs (GskGLRenderer *self)
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gsk_shader_builder_add_define (builder, "GSK_DEBUG", "1");
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#endif
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vertex_id = gsk_shader_builder_compile_shader (builder, GL_VERTEX_SHADER,
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vertex_preamble,
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"blend.vs.glsl",
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&error);
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if (error != NULL)
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{
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g_critical ("Unable to compile vertex shader: %s", error->message);
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g_error_free (error);
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goto out;
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}
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fragment_id = gsk_shader_builder_compile_shader (builder, GL_FRAGMENT_SHADER,
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fragment_preamble,
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"blend.fs.glsl",
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&error);
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if (error != NULL)
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{
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g_critical ("Unable to compile fragment shader: %s", error->message);
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g_error_free (error);
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goto out;
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}
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gsk_shader_builder_create_program (builder, vertex_id, fragment_id, &error);
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self->blend_program_id =
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gsk_shader_builder_create_program (builder, "blend.vs.glsl", "blend.fs.glsl", &error);
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if (error != NULL)
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{
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g_critical ("Unable to create program: %s", error->message);
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g_error_free (error);
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g_object_unref (builder);
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goto out;
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}
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self->blend_program = g_object_ref (builder);
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self->shader_builder = builder;
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res = TRUE;
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out:
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g_object_unref (builder);
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if (vertex_id > 0)
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glDeleteShader (vertex_id);
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if (fragment_id > 0)
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glDeleteShader (fragment_id);
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return res;
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}
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static void
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gsk_gl_renderer_destroy_programs (GskGLRenderer *self)
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{
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if (self->blend_program != NULL)
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{
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int program_id = gsk_shader_builder_get_program (self->blend_program);
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glDeleteProgram (program_id);
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g_clear_object (&self->blend_program);
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}
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g_clear_object (&self->shader_builder);
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}
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static gboolean
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@ -440,10 +402,11 @@ gsk_gl_renderer_realize (GskRenderer *renderer)
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gdk_gl_context_make_current (self->context);
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GSK_NOTE (OPENGL, g_print ("Creating buffers and programs\n"));
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gsk_gl_renderer_create_buffers (self);
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if (!gsk_gl_renderer_create_programs (self))
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return FALSE;
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gsk_gl_renderer_create_buffers (self);
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return TRUE;
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}
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@ -722,6 +685,7 @@ gsk_gl_renderer_add_render_item (GskGLRenderer *self,
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graphene_rect_t bounds;
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GskRenderNode *child;
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RenderItem item;
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int program_id;
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if (gsk_render_node_is_hidden (node))
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{
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@ -767,23 +731,24 @@ gsk_gl_renderer_add_render_item (GskGLRenderer *self,
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item.render_data.vao_id = self->vao_id;
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item.render_data.buffer_id = 0;
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item.render_data.program_id = gsk_shader_builder_get_program (self->blend_program);
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program_id = self->blend_program_id;
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item.render_data.program_id = program_id;
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item.render_data.map_location =
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gsk_shader_builder_get_uniform_location (self->blend_program, self->uniforms[MAP]);
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gsk_shader_builder_get_uniform_location (self->shader_builder, program_id, self->uniforms[MAP]);
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item.render_data.parentMap_location =
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gsk_shader_builder_get_uniform_location (self->blend_program, self->uniforms[PARENT_MAP]);
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gsk_shader_builder_get_uniform_location (self->shader_builder, program_id, self->uniforms[PARENT_MAP]);
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item.render_data.mvp_location =
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gsk_shader_builder_get_uniform_location (self->blend_program, self->uniforms[MVP]);
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gsk_shader_builder_get_uniform_location (self->shader_builder, program_id, self->uniforms[MVP]);
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item.render_data.alpha_location =
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gsk_shader_builder_get_uniform_location (self->blend_program, self->uniforms[ALPHA]);
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gsk_shader_builder_get_uniform_location (self->shader_builder, program_id, self->uniforms[ALPHA]);
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item.render_data.blendMode_location =
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gsk_shader_builder_get_uniform_location (self->blend_program, self->uniforms[BLEND_MODE]);
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gsk_shader_builder_get_uniform_location (self->shader_builder, program_id, self->uniforms[BLEND_MODE]);
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item.render_data.position_location =
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gsk_shader_builder_get_attribute_location (self->blend_program, self->attributes[POSITION]);
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gsk_shader_builder_get_attribute_location (self->shader_builder, program_id, self->attributes[POSITION]);
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item.render_data.uv_location =
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gsk_shader_builder_get_attribute_location (self->blend_program, self->attributes[UV]);
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gsk_shader_builder_get_attribute_location (self->shader_builder, program_id, self->attributes[UV]);
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if (parent != NULL)
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item.parent_data = &(parent->render_data);
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@ -7,26 +7,58 @@
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#include <gdk/gdk.h>
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#include <epoxy/gl.h>
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typedef struct {
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int program_id;
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GHashTable *uniform_locations;
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GHashTable *attribute_locations;
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} ShaderProgram;
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struct _GskShaderBuilder
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{
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GObject parent_instance;
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char *resource_base_path;
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char *vertex_preamble;
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char *fragment_preamble;
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int version;
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int program_id;
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GPtrArray *defines;
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GPtrArray *uniforms;
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GPtrArray *attributes;
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GHashTable *uniform_locations;
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GHashTable *attribute_locations;
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GHashTable *programs;
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};
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G_DEFINE_TYPE (GskShaderBuilder, gsk_shader_builder, G_TYPE_OBJECT)
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static void
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shader_program_free (gpointer data)
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{
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ShaderProgram *p = data;
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g_clear_pointer (&p->uniform_locations, g_hash_table_unref);
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g_clear_pointer (&p->attribute_locations, g_hash_table_unref);
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glDeleteProgram (p->program_id);
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g_slice_free (ShaderProgram, data);
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}
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static ShaderProgram *
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shader_program_new (int program_id)
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{
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ShaderProgram *p = g_slice_new (ShaderProgram);
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p->program_id = program_id;
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p->uniform_locations = g_hash_table_new (g_direct_hash, g_direct_equal);
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p->attribute_locations = g_hash_table_new (g_direct_hash, g_direct_equal);
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return p;
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}
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static void
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gsk_shader_builder_finalize (GObject *gobject)
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{
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@ -38,8 +70,7 @@ gsk_shader_builder_finalize (GObject *gobject)
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g_clear_pointer (&self->uniforms, g_ptr_array_unref);
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g_clear_pointer (&self->attributes, g_ptr_array_unref);
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g_clear_pointer (&self->uniform_locations, g_hash_table_unref);
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g_clear_pointer (&self->attribute_locations, g_hash_table_unref);
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g_clear_pointer (&self->programs, g_hash_table_unref);
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G_OBJECT_CLASS (gsk_shader_builder_parent_class)->finalize (gobject);
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}
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@ -57,8 +88,9 @@ gsk_shader_builder_init (GskShaderBuilder *self)
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self->uniforms = g_ptr_array_new_with_free_func (g_free);
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self->attributes = g_ptr_array_new_with_free_func (g_free);
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self->uniform_locations = g_hash_table_new (g_direct_hash, g_direct_equal);
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self->attribute_locations = g_hash_table_new (g_direct_hash, g_direct_equal);
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self->programs = g_hash_table_new_full (g_direct_hash, g_direct_equal,
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NULL,
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shader_program_free);
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}
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GskShaderBuilder *
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@ -77,6 +109,26 @@ gsk_shader_builder_set_resource_base_path (GskShaderBuilder *builder,
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builder->resource_base_path = g_strdup (base_path);
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}
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void
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gsk_shader_builder_set_vertex_preamble (GskShaderBuilder *builder,
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const char *vertex_preamble)
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{
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g_return_if_fail (GSK_IS_SHADER_BUILDER (builder));
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g_free (builder->vertex_preamble);
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builder->vertex_preamble = g_strdup (vertex_preamble);
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}
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void
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gsk_shader_builder_set_fragment_preamble (GskShaderBuilder *builder,
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const char *fragment_preamble)
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{
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g_return_if_fail (GSK_IS_SHADER_BUILDER (builder));
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g_free (builder->fragment_preamble);
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builder->fragment_preamble = g_strdup (fragment_preamble);
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}
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void
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gsk_shader_builder_set_version (GskShaderBuilder *builder,
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int version)
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@ -150,7 +202,7 @@ lookup_shader_code (GString *code,
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return TRUE;
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}
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int
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static int
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gsk_shader_builder_compile_shader (GskShaderBuilder *builder,
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int shader_type,
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const char *shader_preamble,
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@ -163,9 +215,6 @@ gsk_shader_builder_compile_shader (GskShaderBuilder *builder,
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int status;
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int i;
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g_return_val_if_fail (GSK_IS_SHADER_BUILDER (builder), -1);
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g_return_val_if_fail (shader_source != NULL, -1);
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code = g_string_new (NULL);
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if (builder->version > 0)
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@ -249,16 +298,16 @@ gsk_shader_builder_compile_shader (GskShaderBuilder *builder,
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static void
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gsk_shader_builder_cache_uniforms (GskShaderBuilder *builder,
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int program_id)
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ShaderProgram *program)
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{
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int i;
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for (i = 0; i < builder->uniforms->len; i++)
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{
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const char *uniform = g_ptr_array_index (builder->uniforms, i);
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int loc = glGetUniformLocation (program_id, uniform);
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int loc = glGetUniformLocation (program->program_id, uniform);
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g_hash_table_insert (builder->uniform_locations,
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g_hash_table_insert (program->uniform_locations,
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GINT_TO_POINTER (g_quark_from_string (uniform)),
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GINT_TO_POINTER (loc));
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}
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@ -266,16 +315,16 @@ gsk_shader_builder_cache_uniforms (GskShaderBuilder *builder,
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static void
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gsk_shader_builder_cache_attributes (GskShaderBuilder *builder,
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int program_id)
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ShaderProgram *program)
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{
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int i;
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for (i = 0; i < builder->attributes->len; i++)
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{
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const char *attribute = g_ptr_array_index (builder->attributes, i);
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int loc = glGetAttribLocation (program_id, attribute);
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int loc = glGetAttribLocation (program->program_id, attribute);
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g_hash_table_insert (builder->attribute_locations,
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g_hash_table_insert (program->attribute_locations,
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GINT_TO_POINTER (g_quark_from_string (attribute)),
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GINT_TO_POINTER (loc));
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}
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@ -283,16 +332,35 @@ gsk_shader_builder_cache_attributes (GskShaderBuilder *builder,
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int
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gsk_shader_builder_create_program (GskShaderBuilder *builder,
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int vertex_id,
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int fragment_id,
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const char *vertex_shader,
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const char *fragment_shader,
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GError **error)
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{
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ShaderProgram *program;
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int vertex_id, fragment_id;
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int program_id;
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int status;
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g_return_val_if_fail (GSK_IS_SHADER_BUILDER (builder), -1);
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g_return_val_if_fail (vertex_id > 0, -1);
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g_return_val_if_fail (fragment_id > 0, -1);
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g_return_val_if_fail (vertex_shader != NULL, -1);
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g_return_val_if_fail (fragment_shader != NULL, -1);
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vertex_id = gsk_shader_builder_compile_shader (builder, GL_VERTEX_SHADER,
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builder->vertex_preamble,
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vertex_shader,
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error);
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if (vertex_id < 0)
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return -1;
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fragment_id = gsk_shader_builder_compile_shader (builder, GL_FRAGMENT_SHADER,
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builder->fragment_preamble,
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fragment_shader,
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error);
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if (fragment_id < 0)
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{
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glDeleteShader (vertex_id);
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return -1;
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}
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program_id = glCreateProgram ();
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glAttachShader (program_id, vertex_id);
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@ -320,10 +388,11 @@ gsk_shader_builder_create_program (GskShaderBuilder *builder,
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goto out;
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}
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gsk_shader_builder_cache_uniforms (builder, program_id);
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gsk_shader_builder_cache_attributes (builder, program_id);
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program = shader_program_new (program_id);
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gsk_shader_builder_cache_uniforms (builder, program);
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gsk_shader_builder_cache_attributes (builder, program);
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builder->program_id = program_id;
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g_hash_table_insert (builder->programs, GINT_TO_POINTER (program_id), program);
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#ifdef G_ENABLE_DEBUG
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if (GSK_DEBUG_CHECK (OPENGL))
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@ -331,7 +400,7 @@ gsk_shader_builder_create_program (GskShaderBuilder *builder,
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GHashTableIter iter;
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gpointer name_p, location_p;
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g_hash_table_iter_init (&iter, builder->uniform_locations);
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g_hash_table_iter_init (&iter, program->uniform_locations);
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while (g_hash_table_iter_next (&iter, &name_p, &location_p))
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{
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g_print ("Uniform '%s' - location: %d\n",
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@ -339,7 +408,7 @@ gsk_shader_builder_create_program (GskShaderBuilder *builder,
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GPOINTER_TO_INT (location_p));
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}
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g_hash_table_iter_init (&iter, builder->attribute_locations);
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g_hash_table_iter_init (&iter, program->attribute_locations);
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while (g_hash_table_iter_next (&iter, &name_p, &location_p))
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{
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g_print ("Attribute '%s' - location: %d\n",
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@ -350,27 +419,40 @@ gsk_shader_builder_create_program (GskShaderBuilder *builder,
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#endif
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out:
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glDetachShader (program_id, vertex_id);
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glDetachShader (program_id, fragment_id);
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if (vertex_id > 0)
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{
|
||||
glDetachShader (program_id, vertex_id);
|
||||
glDeleteShader (vertex_id);
|
||||
}
|
||||
|
||||
if (fragment_id > 0)
|
||||
{
|
||||
glDetachShader (program_id, fragment_id);
|
||||
glDeleteShader (fragment_id);
|
||||
}
|
||||
|
||||
return program_id;
|
||||
}
|
||||
|
||||
int
|
||||
gsk_shader_builder_get_uniform_location (GskShaderBuilder *builder,
|
||||
int program_id,
|
||||
GQuark uniform_quark)
|
||||
{
|
||||
ShaderProgram *p = NULL;
|
||||
gpointer loc_p = NULL;
|
||||
|
||||
g_return_val_if_fail (GSK_IS_SHADER_BUILDER (builder), -1);
|
||||
|
||||
if (builder->program_id < 0)
|
||||
return -1;
|
||||
g_return_val_if_fail (program_id >= 0, -1);
|
||||
|
||||
if (builder->uniforms->len == 0)
|
||||
return -1;
|
||||
|
||||
if (g_hash_table_lookup_extended (builder->uniform_locations, GINT_TO_POINTER (uniform_quark), NULL, &loc_p))
|
||||
p = g_hash_table_lookup (builder->programs, GINT_TO_POINTER (program_id));
|
||||
if (p == NULL)
|
||||
return -1;
|
||||
|
||||
if (g_hash_table_lookup_extended (p->uniform_locations, GINT_TO_POINTER (uniform_quark), NULL, &loc_p))
|
||||
return GPOINTER_TO_INT (loc_p);
|
||||
|
||||
return -1;
|
||||
@ -378,28 +460,24 @@ gsk_shader_builder_get_uniform_location (GskShaderBuilder *builder,
|
||||
|
||||
int
|
||||
gsk_shader_builder_get_attribute_location (GskShaderBuilder *builder,
|
||||
int program_id,
|
||||
GQuark attribute_quark)
|
||||
{
|
||||
ShaderProgram *p = NULL;
|
||||
gpointer loc_p = NULL;
|
||||
|
||||
g_return_val_if_fail (GSK_IS_SHADER_BUILDER (builder), -1);
|
||||
|
||||
if (builder->program_id < 0)
|
||||
return -1;
|
||||
g_return_val_if_fail (program_id >= 0, -1);
|
||||
|
||||
if (builder->attributes->len == 0)
|
||||
return -1;
|
||||
|
||||
if (g_hash_table_lookup_extended (builder->attribute_locations, GINT_TO_POINTER (attribute_quark), NULL, &loc_p))
|
||||
p = g_hash_table_lookup (builder->programs, GINT_TO_POINTER (program_id));
|
||||
if (p == NULL)
|
||||
return -1;
|
||||
|
||||
if (g_hash_table_lookup_extended (p->attribute_locations, GINT_TO_POINTER (attribute_quark), NULL, &loc_p))
|
||||
return GPOINTER_TO_INT (loc_p);
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
int
|
||||
gsk_shader_builder_get_program (GskShaderBuilder *builder)
|
||||
{
|
||||
g_return_val_if_fail (GSK_IS_SHADER_BUILDER (builder), -1);
|
||||
|
||||
return builder->program_id;
|
||||
}
|
||||
|
||||
@ -16,6 +16,10 @@ void gsk_shader_builder_set_version (GskShad
|
||||
int version);
|
||||
void gsk_shader_builder_set_resource_base_path (GskShaderBuilder *builder,
|
||||
const char *base_path);
|
||||
void gsk_shader_builder_set_vertex_preamble (GskShaderBuilder *builder,
|
||||
const char *shader_preamble);
|
||||
void gsk_shader_builder_set_fragment_preamble (GskShaderBuilder *builder,
|
||||
const char *shader_preamble);
|
||||
|
||||
GQuark gsk_shader_builder_add_uniform (GskShaderBuilder *builder,
|
||||
const char *uniform_name);
|
||||
@ -25,20 +29,16 @@ void gsk_shader_builder_add_define (GskShad
|
||||
const char *define_name,
|
||||
const char *define_value);
|
||||
|
||||
int gsk_shader_builder_compile_shader (GskShaderBuilder *builder,
|
||||
int shader_type,
|
||||
const char *shader_preamble,
|
||||
const char *shader_source,
|
||||
GError **error);
|
||||
int gsk_shader_builder_create_program (GskShaderBuilder *builder,
|
||||
int vertex_id,
|
||||
int fragment_id,
|
||||
const char *vertex_shader,
|
||||
const char *fragment_shader,
|
||||
GError **error);
|
||||
|
||||
int gsk_shader_builder_get_program (GskShaderBuilder *builder);
|
||||
int gsk_shader_builder_get_uniform_location (GskShaderBuilder *builder,
|
||||
int program_id,
|
||||
GQuark uniform_quark);
|
||||
int gsk_shader_builder_get_attribute_location (GskShaderBuilder *builder,
|
||||
int program_id,
|
||||
GQuark attribute_quark);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
Loading…
Reference in New Issue
Block a user