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Add FlatProgram and RectProgram.

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This commit is contained in:
Josh Holtrop 2020-12-08 20:34:41 -05:00
parent e215485293
commit 23cfdb1273
1 changed files with 23 additions and 5 deletions
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28
src/jes/gui/package.d
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@ -8,8 +8,12 @@ import jes.gui.font;
class Gui class Gui
{ {
jtk.Window[] m_windows; jtk.Window[] m_windows;
alias FlatProgram = gltk.Program!("viewport_size", "2i", "color", "4f", "position", "2i");
alias TextProgram = gltk.Program!("viewport_size", "2i", "texture", "1i", "color", "4f", "position", "2i"); alias TextProgram = gltk.Program!("viewport_size", "2i", "texture", "1i", "color", "4f", "position", "2i");
alias RectProgram = gltk.Program!("viewport_size", "2i", "color", "4f", "position", "2i", "size", "2i");
FlatProgram m_flat_program;
TextProgram m_text_program; TextProgram m_text_program;
RectProgram m_rect_program;
int width; int width;
int height; int height;
@ -35,16 +39,30 @@ class Gui
} }
} }
private gltk.Shader build_shader(GLenum shader_type, string filename)
{
auto shader = new gltk.Shader(shader_type);
shader.set_source_from_file(filename);
return shader;
}
private void load() private void load()
{ {
static bool loaded = false; static bool loaded = false;
if (!loaded) if (!loaded)
{ {
auto v_shader = new gltk.Shader(GL_VERTEX_SHADER); m_flat_program = new FlatProgram(
v_shader.set_source_from_file("share/jes/shaders/text.v.glsl"); build_shader(GL_VERTEX_SHADER, "share/jes/shaders/flat.v.glsl"),
auto f_shader = new gltk.Shader(GL_FRAGMENT_SHADER); build_shader(GL_FRAGMENT_SHADER, "share/jes/shaders/flat.f.glsl"),
f_shader.set_source_from_file("share/jes/shaders/text.f.glsl"); "coords", 0);
m_text_program = new TextProgram(v_shader, f_shader, "coords", 0); m_text_program = new TextProgram(
build_shader(GL_VERTEX_SHADER, "share/jes/shaders/text.v.glsl"),
build_shader(GL_FRAGMENT_SHADER, "share/jes/shaders/text.f.glsl"),
"coords", 0);
m_rect_program = new RectProgram(
build_shader(GL_VERTEX_SHADER, "share/jes/shaders/rect.v.glsl"),
build_shader(GL_FRAGMENT_SHADER, "share/jes/shaders/rect.f.glsl"),
"coords", 0);
glActiveTexture(GL_TEXTURE0); glActiveTexture(GL_TEXTURE0);
glEnable(GL_BLEND); glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);