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Slow steps towards switching to line output.

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This commit is contained in:
Thomas Harte 2018-11-12 18:56:54 -05:00
parent 0af1d668a6
commit 833ab7945b
3 changed files with 26 additions and 11 deletions
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5
Outputs/OpenGL/ScanTarget.cpp
View File

@ -90,7 +90,7 @@ ScanTarget::ScanTarget() :
glBindVertexArray(scan_vertex_array_);
glBindBuffer(GL_ARRAY_BUFFER, scan_buffer_name_);
test_shader_.reset(new Shader(
globals(ShaderType::Scan),
glsl_globals(ShaderType::Scan) + glsl_default_vertex_shader(ShaderType::Scan),
"#version 150\n"
"out vec4 fragColour;"
"void main(void) {"
@ -356,9 +356,8 @@ void ScanTarget::draw() {
// TEST: draw all scans.
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glBindVertexArray(scan_vertex_array_);
test_shader_->bind();
glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, GLsizei(scan_buffer_.size()));
// Rectangle rect(-0.8f, -0.8f, 1.6f, 1.6f);
// rect.draw(1, 1, 0);
}

6
Outputs/OpenGL/ScanTarget.hpp
View File

@ -117,7 +117,11 @@ class ScanTarget: public Outputs::Display::ScanTarget {
from [...]OpenGL::ScanTarget and a vertex function to provide
the standard varyings.
*/
std::string globals(ShaderType type);
std::string glsl_globals(ShaderType type);
/*!
*/
std::string glsl_default_vertex_shader(ShaderType type);
/*!
Calls @c taret.enable_vertex_attribute_with_pointer to attach all

26
Outputs/OpenGL/ScanTargetGLSLFragments.cpp
View File

@ -10,7 +10,7 @@
using namespace Outputs::Display::OpenGL;
std::string ScanTarget::globals(ShaderType type) {
std::string ScanTarget::glsl_globals(ShaderType type) {
switch(type) {
case ShaderType::Scan:
return
@ -30,8 +30,24 @@ std::string ScanTarget::globals(ShaderType type) {
"in float endCompositeAngle;"
"in float dataY;"
"in float lineY;"
"in float lineY;";
case ShaderType::Line:
return
"#version 150\n"
"uniform vec2 scale;"
"uniform float rowHeight;"
"in vec2 startPoint;"
"in vec2 endPoint;";
}
}
std::string ScanTarget::glsl_default_vertex_shader(ShaderType type) {
switch(type) {
case ShaderType::Scan:
return
"void main(void) {"
"float lateral = float(gl_VertexID & 1);"
"float longitudinal = float((gl_VertexID & 2) >> 1);"
@ -43,11 +59,7 @@ std::string ScanTarget::globals(ShaderType type) {
"}";
case ShaderType::Line:
return
"#version 150\n"
"in vec2 startPoint;"
"in vec2 endPoint;";
return "";
}
}