Group all solid triangles independently of color
This commit is contained in:
Héctor Ramón Jiménez
parent
5b0dfcd0b0
commit
33c3c0c0aa
23 changed files with 1343 additions and 1084 deletions
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@ -11,8 +11,8 @@ out vec4 fragColor;
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#define gl_FragColor fragColor
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#endif
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uniform vec4 color;
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in vec4 v_Color;
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void main() {
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gl_FragColor = color;
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gl_FragColor = v_Color;
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}
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11
glow/src/shader/common/solid.vert
Normal file
11
glow/src/shader/common/solid.vert
Normal file
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@ -0,0 +1,11 @@
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uniform mat4 u_Transform;
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in vec2 i_Position;
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in vec4 i_Color;
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out vec4 v_Color;
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void main() {
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gl_Position = u_Transform * vec4(i_Position, 0.0, 1.0);
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v_Color = i_Color;
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}
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@ -1,74 +1,49 @@
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//! Draw meshes of triangles.
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mod gradient;
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mod solid;
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use crate::program;
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use crate::Transformation;
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use iced_graphics::gradient::Gradient;
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use iced_graphics::layer::mesh::{self, Mesh};
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use iced_graphics::triangle::{self, Vertex2D};
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use iced_graphics::triangle::{ColoredVertex2D, Vertex2D};
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use glow::HasContext;
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use std::marker::PhantomData;
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#[derive(Debug)]
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pub(crate) struct Pipeline {
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vertex_array: <glow::Context as HasContext>::VertexArray,
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vertices: Buffer<Vertex2D>,
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indices: Buffer<u32>,
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programs: ProgramList,
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}
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#[derive(Debug)]
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struct ProgramList {
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solid: solid::Program,
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gradient: gradient::Program,
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}
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impl Pipeline {
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pub fn new(gl: &glow::Context, shader_version: &program::Version) -> Self {
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let vertex_array =
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unsafe { gl.create_vertex_array().expect("Create vertex array") };
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unsafe {
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gl.bind_vertex_array(Some(vertex_array));
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}
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let vertices = unsafe {
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Buffer::new(
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gl,
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glow::ARRAY_BUFFER,
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glow::DYNAMIC_DRAW,
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std::mem::size_of::<Vertex2D>() as usize,
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)
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};
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let indices = unsafe {
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let mut indices = unsafe {
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Buffer::new(
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gl,
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glow::ELEMENT_ARRAY_BUFFER,
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glow::DYNAMIC_DRAW,
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std::mem::size_of::<u32>() as usize,
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1000,
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)
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};
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unsafe {
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let stride = std::mem::size_of::<Vertex2D>() as i32;
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let solid = solid::Program::new(gl, shader_version);
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let gradient = gradient::Program::new(gl, shader_version);
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gl.enable_vertex_attrib_array(0);
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gl.vertex_attrib_pointer_f32(0, 2, glow::FLOAT, false, stride, 0);
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unsafe {
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gl.bind_vertex_array(Some(solid.vertex_array));
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indices.bind(gl, 0);
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gl.bind_vertex_array(Some(gradient.vertex_array));
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indices.bind(gl, 0);
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gl.bind_vertex_array(None);
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};
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}
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Self {
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vertex_array,
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vertices,
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indices,
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programs: ProgramList {
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solid: solid::Program::new(gl, shader_version),
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gradient: gradient::Program::new(gl, shader_version),
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},
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solid,
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gradient,
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}
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}
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@ -83,50 +58,83 @@ impl Pipeline {
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unsafe {
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gl.enable(glow::MULTISAMPLE);
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gl.enable(glow::SCISSOR_TEST);
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gl.bind_vertex_array(Some(self.vertex_array))
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}
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//count the total amount of vertices & indices we need to handle
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let (total_vertices, total_indices) = mesh::attribute_count_of(meshes);
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// Count the total amount of vertices & indices we need to handle
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let count = mesh::attribute_count_of(meshes);
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// Then we ensure the current attribute buffers are big enough, resizing if necessary
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unsafe {
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self.vertices.bind(gl, total_vertices);
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self.indices.bind(gl, total_indices);
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self.indices.bind(gl, count.indices);
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}
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// We upload all the vertices and indices upfront
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let mut vertex_offset = 0;
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let mut solid_vertex_offset = 0;
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let mut gradient_vertex_offset = 0;
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let mut index_offset = 0;
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for mesh in meshes {
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unsafe {
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gl.buffer_sub_data_u8_slice(
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glow::ARRAY_BUFFER,
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(vertex_offset * std::mem::size_of::<Vertex2D>()) as i32,
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bytemuck::cast_slice(&mesh.buffers.vertices),
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);
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let indices = mesh.indices();
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unsafe {
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gl.buffer_sub_data_u8_slice(
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glow::ELEMENT_ARRAY_BUFFER,
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(index_offset * std::mem::size_of::<u32>()) as i32,
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bytemuck::cast_slice(&mesh.buffers.indices),
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bytemuck::cast_slice(indices),
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);
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vertex_offset += mesh.buffers.vertices.len();
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index_offset += mesh.buffers.indices.len();
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index_offset += indices.len();
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}
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match mesh {
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Mesh::Solid { buffers, .. } => {
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unsafe {
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self.solid.vertices.bind(gl, count.solid_vertices);
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gl.buffer_sub_data_u8_slice(
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glow::ARRAY_BUFFER,
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(solid_vertex_offset
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* std::mem::size_of::<ColoredVertex2D>())
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as i32,
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bytemuck::cast_slice(&buffers.vertices),
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);
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}
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solid_vertex_offset += buffers.vertices.len();
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}
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Mesh::Gradient { buffers, .. } => {
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unsafe {
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self.gradient
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.vertices
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.bind(gl, count.gradient_vertices);
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gl.buffer_sub_data_u8_slice(
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glow::ARRAY_BUFFER,
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(gradient_vertex_offset
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* std::mem::size_of::<Vertex2D>())
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as i32,
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bytemuck::cast_slice(&buffers.vertices),
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);
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}
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gradient_vertex_offset += buffers.vertices.len();
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}
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}
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}
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// Then we draw each mesh using offsets
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let mut last_vertex = 0;
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let mut last_solid_vertex = 0;
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let mut last_gradient_vertex = 0;
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let mut last_index = 0;
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for mesh in meshes {
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let transform = transformation
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* Transformation::translate(mesh.origin.x, mesh.origin.y);
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let indices = mesh.indices();
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let origin = mesh.origin();
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let clip_bounds = (mesh.clip_bounds * scale_factor).snap();
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let transform =
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transformation * Transformation::translate(origin.x, origin.y);
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let clip_bounds = (mesh.clip_bounds() * scale_factor).snap();
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unsafe {
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gl.scissor(
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@ -136,30 +144,126 @@ impl Pipeline {
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clip_bounds.width as i32,
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clip_bounds.height as i32,
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);
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match mesh.style {
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triangle::Style::Solid(color) => {
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self.programs.solid.use_program(gl, color, &transform);
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}
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#[cfg(not(target_arch = "wasm32"))]
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triangle::Style::Gradient(gradient) => {
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self.programs
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.gradient
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.use_program(gl, gradient, &transform);
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}
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}
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gl.draw_elements_base_vertex(
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glow::TRIANGLES,
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mesh.buffers.indices.len() as i32,
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glow::UNSIGNED_INT,
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(last_index * std::mem::size_of::<u32>()) as i32,
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last_vertex as i32,
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);
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last_vertex += mesh.buffers.vertices.len();
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last_index += mesh.buffers.indices.len();
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}
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match mesh {
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Mesh::Solid { buffers, .. } => unsafe {
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gl.use_program(Some(self.solid.program));
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gl.bind_vertex_array(Some(self.solid.vertex_array));
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if transform != self.solid.uniforms.transform {
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gl.uniform_matrix_4_f32_slice(
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Some(&self.solid.uniforms.transform_location),
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false,
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transform.as_ref(),
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);
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self.solid.uniforms.transform = transform;
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}
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gl.draw_elements_base_vertex(
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glow::TRIANGLES,
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indices.len() as i32,
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glow::UNSIGNED_INT,
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(last_index * std::mem::size_of::<u32>()) as i32,
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last_solid_vertex as i32,
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);
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last_solid_vertex += buffers.vertices.len();
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},
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Mesh::Gradient {
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buffers, gradient, ..
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} => unsafe {
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gl.use_program(Some(self.gradient.program));
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gl.bind_vertex_array(Some(self.gradient.vertex_array));
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if transform != self.gradient.uniforms.transform {
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gl.uniform_matrix_4_f32_slice(
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Some(&self.gradient.uniforms.locations.transform),
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false,
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transform.as_ref(),
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);
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self.gradient.uniforms.transform = transform;
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}
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if &self.gradient.uniforms.gradient != *gradient {
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match gradient {
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Gradient::Linear(linear) => {
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gl.uniform_4_f32(
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Some(
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&self
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.gradient
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.uniforms
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.locations
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.gradient_direction,
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),
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linear.start.x,
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linear.start.y,
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linear.end.x,
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linear.end.y,
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);
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gl.uniform_1_i32(
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Some(
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&self
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.gradient
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.uniforms
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.locations
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.color_stops_size,
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),
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(linear.color_stops.len() * 2) as i32,
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);
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let mut stops = [0.0; 128];
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for (index, stop) in linear
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.color_stops
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.iter()
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.enumerate()
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.take(16)
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{
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let [r, g, b, a] = stop.color.into_linear();
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stops[index * 8] = r;
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stops[(index * 8) + 1] = g;
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stops[(index * 8) + 2] = b;
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stops[(index * 8) + 3] = a;
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stops[(index * 8) + 4] = stop.offset;
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stops[(index * 8) + 5] = 0.;
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stops[(index * 8) + 6] = 0.;
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stops[(index * 8) + 7] = 0.;
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}
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gl.uniform_4_f32_slice(
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Some(
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&self
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.gradient
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.uniforms
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.locations
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.color_stops,
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),
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&stops,
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);
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}
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}
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self.gradient.uniforms.gradient = (*gradient).clone();
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}
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gl.draw_elements_base_vertex(
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glow::TRIANGLES,
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indices.len() as i32,
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glow::UNSIGNED_INT,
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(last_index * std::mem::size_of::<u32>()) as i32,
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last_gradient_vertex as i32,
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);
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last_gradient_vertex += buffers.vertices.len();
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},
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}
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last_index += indices.len();
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}
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unsafe {
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@ -170,47 +274,8 @@ impl Pipeline {
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}
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}
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/// A simple shader program. Uses [`triangle.vert`] for its vertex shader and only binds position
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/// attribute location.
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pub(super) fn program(
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gl: &glow::Context,
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shader_version: &program::Version,
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fragment_shader: &'static str,
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) -> <glow::Context as HasContext>::Program {
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unsafe {
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let vertex_shader = program::Shader::vertex(
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gl,
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shader_version,
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include_str!("shader/common/triangle.vert"),
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);
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let fragment_shader =
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program::Shader::fragment(gl, shader_version, fragment_shader);
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program::create(
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gl,
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&[vertex_shader, fragment_shader],
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&[(0, "i_Position")],
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)
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}
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}
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pub fn set_transform(
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gl: &glow::Context,
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location: <glow::Context as HasContext>::UniformLocation,
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transform: Transformation,
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) {
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unsafe {
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gl.uniform_matrix_4_f32_slice(
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Some(&location),
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false,
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transform.as_ref(),
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);
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}
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}
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#[derive(Debug)]
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struct Buffer<T> {
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pub struct Buffer<T> {
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raw: <glow::Context as HasContext>::Buffer,
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target: u32,
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usage: u32,
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@ -254,3 +319,268 @@ impl<T> Buffer<T> {
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}
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}
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}
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mod solid {
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use crate::program;
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use crate::triangle;
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use glow::{Context, HasContext, NativeProgram};
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use iced_graphics::triangle::ColoredVertex2D;
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use iced_graphics::Transformation;
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#[derive(Debug)]
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pub struct Program {
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pub program: <Context as HasContext>::Program,
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pub vertex_array: <glow::Context as HasContext>::VertexArray,
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pub vertices: triangle::Buffer<ColoredVertex2D>,
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pub uniforms: Uniforms,
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}
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impl Program {
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pub fn new(gl: &Context, shader_version: &program::Version) -> Self {
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let program = unsafe {
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let vertex_shader = program::Shader::vertex(
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gl,
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shader_version,
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include_str!("shader/common/solid.vert"),
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);
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let fragment_shader = program::Shader::fragment(
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gl,
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shader_version,
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include_str!("shader/common/solid.frag"),
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);
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program::create(
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gl,
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&[vertex_shader, fragment_shader],
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&[(0, "i_Position"), (1, "i_Color")],
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)
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};
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let vertex_array = unsafe {
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gl.create_vertex_array().expect("Create vertex array")
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};
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let vertices = unsafe {
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triangle::Buffer::new(
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gl,
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glow::ARRAY_BUFFER,
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glow::DYNAMIC_DRAW,
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1000,
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)
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};
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unsafe {
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gl.bind_vertex_array(Some(vertex_array));
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let stride = std::mem::size_of::<ColoredVertex2D>() as i32;
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gl.enable_vertex_attrib_array(0);
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gl.vertex_attrib_pointer_f32(
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0,
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2,
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glow::FLOAT,
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false,
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stride,
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0,
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);
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gl.enable_vertex_attrib_array(1);
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gl.vertex_attrib_pointer_f32(
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1,
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4,
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glow::FLOAT,
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false,
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stride,
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4 * 2,
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);
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gl.bind_vertex_array(None);
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};
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Self {
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program,
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vertex_array,
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vertices,
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uniforms: Uniforms::new(gl, program),
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}
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}
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}
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#[derive(Debug)]
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pub struct Uniforms {
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pub transform: Transformation,
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pub transform_location: <Context as HasContext>::UniformLocation,
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}
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impl Uniforms {
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fn new(gl: &Context, program: NativeProgram) -> Self {
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let transform = Transformation::identity();
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let transform_location =
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unsafe { gl.get_uniform_location(program, "u_Transform") }
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.expect("Solid - Get u_Transform.");
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unsafe {
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gl.use_program(Some(program));
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gl.uniform_matrix_4_f32_slice(
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Some(&transform_location),
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false,
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transform.as_ref(),
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);
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gl.use_program(None);
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}
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Self {
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transform,
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transform_location,
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}
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}
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}
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}
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mod gradient {
|
||||
use crate::program;
|
||||
use crate::triangle;
|
||||
use glow::{Context, HasContext, NativeProgram};
|
||||
use iced_graphics::gradient::{self, Gradient};
|
||||
use iced_graphics::triangle::Vertex2D;
|
||||
use iced_graphics::Transformation;
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct Program {
|
||||
pub program: <Context as HasContext>::Program,
|
||||
pub vertex_array: <glow::Context as HasContext>::VertexArray,
|
||||
pub vertices: triangle::Buffer<Vertex2D>,
|
||||
pub uniforms: Uniforms,
|
||||
}
|
||||
|
||||
impl Program {
|
||||
pub fn new(gl: &Context, shader_version: &program::Version) -> Self {
|
||||
let program = unsafe {
|
||||
let vertex_shader = program::Shader::vertex(
|
||||
gl,
|
||||
shader_version,
|
||||
include_str!("shader/common/gradient.vert"),
|
||||
);
|
||||
|
||||
let fragment_shader = program::Shader::fragment(
|
||||
gl,
|
||||
shader_version,
|
||||
include_str!("shader/common/gradient.frag"),
|
||||
);
|
||||
|
||||
program::create(
|
||||
gl,
|
||||
&[vertex_shader, fragment_shader],
|
||||
&[(0, "i_Position")],
|
||||
)
|
||||
};
|
||||
|
||||
let vertex_array = unsafe {
|
||||
gl.create_vertex_array().expect("Create vertex array")
|
||||
};
|
||||
|
||||
let vertices = unsafe {
|
||||
triangle::Buffer::new(
|
||||
gl,
|
||||
glow::ARRAY_BUFFER,
|
||||
glow::DYNAMIC_DRAW,
|
||||
1000,
|
||||
)
|
||||
};
|
||||
|
||||
unsafe {
|
||||
gl.bind_vertex_array(Some(vertex_array));
|
||||
|
||||
let stride = std::mem::size_of::<Vertex2D>() as i32;
|
||||
|
||||
gl.enable_vertex_attrib_array(0);
|
||||
gl.vertex_attrib_pointer_f32(
|
||||
0,
|
||||
2,
|
||||
glow::FLOAT,
|
||||
false,
|
||||
stride,
|
||||
0,
|
||||
);
|
||||
|
||||
gl.bind_vertex_array(None);
|
||||
};
|
||||
|
||||
Self {
|
||||
program,
|
||||
vertex_array,
|
||||
vertices,
|
||||
uniforms: Uniforms::new(gl, program),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct Uniforms {
|
||||
pub gradient: Gradient,
|
||||
pub transform: Transformation,
|
||||
pub locations: Locations,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct Locations {
|
||||
pub gradient_direction: <Context as HasContext>::UniformLocation,
|
||||
pub color_stops_size: <Context as HasContext>::UniformLocation,
|
||||
//currently the maximum number of stops is 16 due to lack of SSBO in GL2.1
|
||||
pub color_stops: <Context as HasContext>::UniformLocation,
|
||||
pub transform: <Context as HasContext>::UniformLocation,
|
||||
}
|
||||
|
||||
impl Uniforms {
|
||||
fn new(gl: &Context, program: NativeProgram) -> Self {
|
||||
let gradient_direction = unsafe {
|
||||
gl.get_uniform_location(program, "gradient_direction")
|
||||
}
|
||||
.expect("Gradient - Get gradient_direction.");
|
||||
|
||||
let color_stops_size =
|
||||
unsafe { gl.get_uniform_location(program, "color_stops_size") }
|
||||
.expect("Gradient - Get color_stops_size.");
|
||||
|
||||
let color_stops = unsafe {
|
||||
gl.get_uniform_location(program, "color_stops")
|
||||
.expect("Gradient - Get color_stops.")
|
||||
};
|
||||
|
||||
let transform = Transformation::identity();
|
||||
let transform_location =
|
||||
unsafe { gl.get_uniform_location(program, "u_Transform") }
|
||||
.expect("Solid - Get u_Transform.");
|
||||
|
||||
unsafe {
|
||||
gl.use_program(Some(program));
|
||||
|
||||
gl.uniform_matrix_4_f32_slice(
|
||||
Some(&transform_location),
|
||||
false,
|
||||
transform.as_ref(),
|
||||
);
|
||||
|
||||
gl.use_program(None);
|
||||
}
|
||||
|
||||
Self {
|
||||
gradient: Gradient::Linear(gradient::Linear {
|
||||
start: Default::default(),
|
||||
end: Default::default(),
|
||||
color_stops: vec![],
|
||||
}),
|
||||
transform: Transformation::identity(),
|
||||
locations: Locations {
|
||||
gradient_direction,
|
||||
color_stops_size,
|
||||
color_stops,
|
||||
transform: transform_location,
|
||||
},
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,162 +0,0 @@
|
|||
use crate::program::Version;
|
||||
use crate::triangle;
|
||||
use glow::{Context, HasContext, NativeProgram};
|
||||
use iced_graphics::gradient::Gradient;
|
||||
use iced_graphics::gradient::Linear;
|
||||
use iced_graphics::Transformation;
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct Program {
|
||||
pub program: <Context as HasContext>::Program,
|
||||
pub uniform_data: UniformData,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct UniformData {
|
||||
gradient: Gradient,
|
||||
transform: Transformation,
|
||||
uniform_locations: UniformLocations,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct UniformLocations {
|
||||
gradient_direction_location: <Context as HasContext>::UniformLocation,
|
||||
color_stops_size_location: <Context as HasContext>::UniformLocation,
|
||||
//currently the maximum number of stops is 16 due to lack of SSBO in GL2.1
|
||||
color_stops_location: <Context as HasContext>::UniformLocation,
|
||||
transform_location: <Context as HasContext>::UniformLocation,
|
||||
}
|
||||
|
||||
impl Program {
|
||||
pub fn new(gl: &Context, shader_version: &Version) -> Self {
|
||||
let program = triangle::program(
|
||||
gl,
|
||||
shader_version,
|
||||
include_str!("../shader/common/gradient.frag"),
|
||||
);
|
||||
|
||||
Self {
|
||||
program,
|
||||
uniform_data: UniformData::new(gl, program),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn write_uniforms(
|
||||
&mut self,
|
||||
gl: &Context,
|
||||
gradient: &Gradient,
|
||||
transform: &Transformation,
|
||||
) {
|
||||
if transform != &self.uniform_data.transform {
|
||||
triangle::set_transform(
|
||||
gl,
|
||||
self.uniform_data.uniform_locations.transform_location,
|
||||
*transform,
|
||||
);
|
||||
}
|
||||
|
||||
if &self.uniform_data.gradient != gradient {
|
||||
match gradient {
|
||||
Gradient::Linear(linear) => unsafe {
|
||||
gl.uniform_4_f32(
|
||||
Some(
|
||||
&self
|
||||
.uniform_data
|
||||
.uniform_locations
|
||||
.gradient_direction_location,
|
||||
),
|
||||
linear.start.x,
|
||||
linear.start.y,
|
||||
linear.end.x,
|
||||
linear.end.y,
|
||||
);
|
||||
|
||||
gl.uniform_1_i32(
|
||||
Some(
|
||||
&self
|
||||
.uniform_data
|
||||
.uniform_locations
|
||||
.color_stops_size_location,
|
||||
),
|
||||
(linear.color_stops.len() * 2) as i32,
|
||||
);
|
||||
|
||||
let mut stops = [0.0; 128];
|
||||
|
||||
for (index, stop) in
|
||||
linear.color_stops.iter().enumerate().take(16)
|
||||
{
|
||||
let [r, g, b, a] = stop.color.into_linear();
|
||||
|
||||
stops[index * 8] = r;
|
||||
stops[(index * 8) + 1] = g;
|
||||
stops[(index * 8) + 2] = b;
|
||||
stops[(index * 8) + 3] = a;
|
||||
stops[(index * 8) + 4] = stop.offset;
|
||||
stops[(index * 8) + 5] = 0.;
|
||||
stops[(index * 8) + 6] = 0.;
|
||||
stops[(index * 8) + 7] = 0.;
|
||||
}
|
||||
|
||||
gl.uniform_4_f32_slice(
|
||||
Some(
|
||||
&self
|
||||
.uniform_data
|
||||
.uniform_locations
|
||||
.color_stops_location,
|
||||
),
|
||||
&stops,
|
||||
);
|
||||
},
|
||||
}
|
||||
|
||||
self.uniform_data.gradient = gradient.clone();
|
||||
}
|
||||
}
|
||||
|
||||
pub fn use_program(
|
||||
&mut self,
|
||||
gl: &Context,
|
||||
gradient: &Gradient,
|
||||
transform: &Transformation,
|
||||
) {
|
||||
unsafe { gl.use_program(Some(self.program)) }
|
||||
self.write_uniforms(gl, gradient, transform);
|
||||
}
|
||||
}
|
||||
|
||||
impl UniformData {
|
||||
fn new(gl: &Context, program: NativeProgram) -> Self {
|
||||
let gradient_direction_location =
|
||||
unsafe { gl.get_uniform_location(program, "gradient_direction") }
|
||||
.expect("Gradient - Get gradient_direction.");
|
||||
|
||||
let color_stops_size_location =
|
||||
unsafe { gl.get_uniform_location(program, "color_stops_size") }
|
||||
.expect("Gradient - Get color_stops_size.");
|
||||
|
||||
let color_stops_location = unsafe {
|
||||
gl.get_uniform_location(program, "color_stops")
|
||||
.expect("Gradient - Get color_stops.")
|
||||
};
|
||||
|
||||
let transform_location =
|
||||
unsafe { gl.get_uniform_location(program, "u_Transform") }
|
||||
.expect("Gradient - Get u_Transform.");
|
||||
|
||||
Self {
|
||||
gradient: Gradient::Linear(Linear {
|
||||
start: Default::default(),
|
||||
end: Default::default(),
|
||||
color_stops: vec![],
|
||||
}),
|
||||
transform: Transformation::identity(),
|
||||
uniform_locations: UniformLocations {
|
||||
gradient_direction_location,
|
||||
color_stops_size_location,
|
||||
color_stops_location,
|
||||
transform_location,
|
||||
},
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,91 +0,0 @@
|
|||
use crate::program::Version;
|
||||
use crate::{triangle, Color};
|
||||
use glow::{Context, HasContext, NativeProgram};
|
||||
use iced_graphics::Transformation;
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct Program {
|
||||
program: <Context as HasContext>::Program,
|
||||
uniform_data: UniformData,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct UniformData {
|
||||
pub color: Color,
|
||||
pub color_location: <Context as HasContext>::UniformLocation,
|
||||
pub transform: Transformation,
|
||||
pub transform_location: <Context as HasContext>::UniformLocation,
|
||||
}
|
||||
|
||||
impl UniformData {
|
||||
fn new(gl: &Context, program: NativeProgram) -> Self {
|
||||
Self {
|
||||
color: Color::TRANSPARENT,
|
||||
color_location: unsafe {
|
||||
gl.get_uniform_location(program, "color")
|
||||
}
|
||||
.expect("Solid - Get color."),
|
||||
transform: Transformation::identity(),
|
||||
transform_location: unsafe {
|
||||
gl.get_uniform_location(program, "u_Transform")
|
||||
}
|
||||
.expect("Solid - Get u_Transform."),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Program {
|
||||
pub fn new(gl: &Context, shader_version: &Version) -> Self {
|
||||
let program = triangle::program(
|
||||
gl,
|
||||
shader_version,
|
||||
include_str!("../shader/common/triangle.frag"),
|
||||
);
|
||||
|
||||
Self {
|
||||
program,
|
||||
uniform_data: UniformData::new(gl, program),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn write_uniforms(
|
||||
&mut self,
|
||||
gl: &Context,
|
||||
color: &Color,
|
||||
transform: &Transformation,
|
||||
) {
|
||||
if transform != &self.uniform_data.transform {
|
||||
triangle::set_transform(
|
||||
gl,
|
||||
self.uniform_data.transform_location,
|
||||
*transform,
|
||||
)
|
||||
}
|
||||
|
||||
if color != &self.uniform_data.color {
|
||||
let [r, g, b, a] = color.into_linear();
|
||||
|
||||
unsafe {
|
||||
gl.uniform_4_f32(
|
||||
Some(&self.uniform_data.color_location),
|
||||
r,
|
||||
g,
|
||||
b,
|
||||
a,
|
||||
);
|
||||
}
|
||||
|
||||
self.uniform_data.color = *color;
|
||||
}
|
||||
}
|
||||
|
||||
pub fn use_program(
|
||||
&mut self,
|
||||
gl: &Context,
|
||||
color: &Color,
|
||||
transform: &Transformation,
|
||||
) {
|
||||
unsafe { gl.use_program(Some(self.program)) }
|
||||
self.write_uniforms(gl, color, transform)
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue