reset-gpu ( -- ) - Factor Documentation (original) (raw)

reset-gpu ( -- )
GPU-accelerated rendering » Graphics context management

Vocabulary
gpu

Word description
Clears all framebuffer, GPU buffer, shader, and vertex array bindings. Call this before directly calling OpenGL functions after using gpu functions.

Definition

USING: kernel opengl.capabilities opengl.gl ;

IN: gpu

: reset-gpu ( -- )
"3.0" {
{
"GL_APPLE_vertex_array_object"
"GL_ARB_vertex_array_object"
}
} has-gl-version-or-extensions? [ 0 glBindVertexArray ] when
"3.0" {
{
"GL_EXT_framebuffer_object"
"GL_ARB_framebuffer_object"
}
} has-gl-version-or-extensions? [
GL_DRAW_FRAMEBUFFER 0 glBindFramebuffer
GL_READ_FRAMEBUFFER 0 glBindFramebuffer
GL_RENDERBUFFER 0 glBindRenderbuffer
] when "1.5"
{ "GL_ARB_vertex_buffer_object" }
has-gl-version-or-extensions? [
GL_ARRAY_BUFFER 0 glBindBuffer
GL_ELEMENT_ARRAY_BUFFER 0 glBindBuffer
] when "2.1"
{ "GL_ARB_pixel_buffer_object" }
has-gl-version-or-extensions? [
GL_PIXEL_PACK_BUFFER 0 glBindBuffer
GL_PIXEL_UNPACK_BUFFER 0 glBindBuffer
] when "2.0"
{ "GL_ARB_shader_objects" } has-gl-version-or-extensions?
[ 0 glUseProgram ] when ;