93 lines
2.3 KiB
Odin
93 lines
2.3 KiB
Odin
package renderer
|
|
|
|
import "core:fmt"
|
|
import "core:log"
|
|
|
|
RENDER_BACKEND_OPENGL :: #config(RENDER_BACKEND_OPENGL, false)
|
|
RENDER_BACKEND_VULKAN :: #config(RENDER_BACKEND_VULKAN, false)
|
|
RENDER_BACKEND_DIRECTX11 :: #config(RENDER_BACKEND_DIRECTX11, false)
|
|
RENDER_BACKEND_METAL :: #config(RENDER_BACKEND_METAL, false)
|
|
|
|
Renderer :: struct {
|
|
viewport: Viewport,
|
|
surface_ptr: rawptr,
|
|
backend: rawptr,
|
|
|
|
pipeline: Pipeline,
|
|
}
|
|
|
|
Viewport :: struct {
|
|
x, y, width, height: u16,
|
|
}
|
|
|
|
RGB_Color :: [3]u8
|
|
RGBA_Color :: [4]u8
|
|
|
|
create :: proc(surface_ptr: rawptr) -> (^Renderer, bool) {
|
|
renderer := new(Renderer)
|
|
renderer.surface_ptr = surface_ptr
|
|
|
|
when RENDER_BACKEND_OPENGL {
|
|
if !opengl_init(renderer) {
|
|
fmt.printfln("Failed to initialize OpenGL.")
|
|
destroy(renderer)
|
|
return nil, false
|
|
}
|
|
}
|
|
else {
|
|
destroy(renderer)
|
|
|
|
fmt.printfln("Unhandled backend or no backend selected.")
|
|
return nil, false
|
|
}
|
|
|
|
return renderer, true
|
|
}
|
|
|
|
set_viewport :: proc(renderer: ^Renderer, x, y, width, height: u16) {
|
|
fmt.printfln("Setting viewport to %v:%v, %vx%v.", x, y, width, height)
|
|
|
|
renderer.viewport = {
|
|
x = x,
|
|
y = y,
|
|
width = width,
|
|
height = height,
|
|
}
|
|
|
|
when RENDER_BACKEND_OPENGL {
|
|
opengl_viewport_changed(renderer)
|
|
}
|
|
}
|
|
|
|
@(private="file") set_clear_color :: proc(renderer: ^Renderer, color: RGB_Color) {
|
|
when RENDER_BACKEND_OPENGL {
|
|
opengl_set_clear_color(renderer, color)
|
|
}
|
|
}
|
|
|
|
render_frame :: proc(renderer: ^Renderer) {
|
|
pipeline := &renderer.pipeline
|
|
for i in 0 ..< pipeline.amount_of_passes {
|
|
pass := pipeline.passes[i]
|
|
|
|
// TODO: SS - "Activate" the pass.
|
|
set_clear_color(renderer, pass.clear_color)
|
|
|
|
// TODO: SS - Loop over the pass' render-commands.
|
|
|
|
// TODO: SS - "Deactivate" the pass.
|
|
}
|
|
|
|
when RENDER_BACKEND_OPENGL {
|
|
opengl_swap_buffers(renderer)
|
|
}
|
|
}
|
|
|
|
destroy :: proc(renderer: ^Renderer) {
|
|
when RENDER_BACKEND_OPENGL {
|
|
opengl_destroy(renderer)
|
|
}
|
|
|
|
assert(renderer != nil)
|
|
free(renderer)
|
|
} |