tei/MapLibreParticleLab
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Uniform buffer objects (#1127)

Browse Source 
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
This commit is contained in:
Alex Cristici
2023-05-11 20:33:58 +03:00
committed by Bart Louwers
parent bbb8bf3c1e
commit d8ea91de98
34 changed files with 634 additions and 163 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
src/mbgl/gl/renderer_backend.cpp
View File

@@ -3,6 +3,7 @@
#include <mbgl/gfx/shader_registry.hpp>
#include <mbgl/gl/context.hpp>
#include <mbgl/gl/extension.hpp>
#include <mbgl/shaders/shader_manifest.hpp>
#include <mbgl/shaders/gl/shader_program_gl.hpp>
#include <mbgl/util/logging.hpp>
@@ -66,33 +67,14 @@ void RendererBackend::setScissorTest(bool enabled) {
RendererBackend::~RendererBackend() = default;
void RendererBackend::initShaders(gfx::ShaderRegistry& shaders) {
constexpr auto shaderName = "background_generic";
constexpr auto shaderName = "BackgroundProgramUBO";
gl::Context& glContext = static_cast<gl::Context&>(*context);
auto shader = shaders.get<gl::ShaderProgramGL>(shaderName);
if (!shader) {
constexpr auto vert = R"(#version 300 es
precision highp float;
uniform mat4 u_matrix;
layout (location = 0) in vec2 a_pos;
layout (location = 1) in vec4 a_color;
out vec4 v_color;
void main() {
v_color = a_color;
gl_Position = u_matrix * vec4(a_pos, 0, 1);
})";
constexpr auto frag = R"(#version 300 es
precision highp float;
in vec4 v_color;
out vec4 fragColor;
void main() {
fragColor = v_color;
})";
auto vert = shaders::ShaderSource<shaders::BuiltIn::BackgroundProgramUBO, gfx::Backend::Type::OpenGL>::vertex;
auto frag = shaders::ShaderSource<shaders::BuiltIn::BackgroundProgramUBO, gfx::Backend::Type::OpenGL>::fragment;
try {
// Compile
shader = gl::ShaderProgramGL::create(glContext, shaderName, vert, frag);