From b18209c904f421f3065d610718d7d9e9b8b9211f Mon Sep 17 00:00:00 2001 From: Drew DeVault Date: Fri, 23 Jun 2017 11:38:45 -0400 Subject: Switch to GLES2 Closes #13 --- render/gles2/surface.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 render/gles2/surface.c (limited to 'render/gles2/surface.c') diff --git a/render/gles2/surface.c b/render/gles2/surface.c new file mode 100644 index 00000000..278b3dc3 --- /dev/null +++ b/render/gles2/surface.c @@ -0,0 +1,63 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "render/gles2.h" + +static bool gles2_surface_attach_pixels(struct wlr_surface_state *surface, + uint32_t format, int width, int height, const unsigned char *pixels) { + assert(surface); + surface->wlr_surface->width = width; + surface->wlr_surface->height = height; + surface->wlr_surface->format = format; + GL_CALL(glGenTextures(1, &surface->tex_id)); + GL_CALL(glBindTexture(GL_TEXTURE_2D, surface->tex_id)); + GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, + format, GL_UNSIGNED_BYTE, pixels)); + surface->wlr_surface->valid = true; + return true; +} + +static void gles2_surface_get_matrix(struct wlr_surface_state *surface, + float (*matrix)[16], const float (*projection)[16], int x, int y) { + struct wlr_surface *_surface = surface->wlr_surface; + float world[16]; + wlr_matrix_identity(matrix); + wlr_matrix_translate(&world, x, y, 0); + wlr_matrix_mul(matrix, &world, matrix); + wlr_matrix_scale(&world, _surface->width, _surface->height, 1); + wlr_matrix_mul(matrix, &world, matrix); + wlr_matrix_mul(projection, matrix, matrix); +} + +static void gles2_surface_bind(struct wlr_surface_state *surface) { + GL_CALL(glActiveTexture(GL_TEXTURE0 + 1)); + GL_CALL(glBindTexture(GL_TEXTURE_2D, surface->tex_id)); + GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)); + GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)); +} + +static void gles2_surface_destroy(struct wlr_surface_state *surface) { + GL_CALL(glDeleteTextures(1, &surface->tex_id)); + free(surface); +} + +static struct wlr_surface_impl wlr_surface_impl = { + .attach_pixels = gles2_surface_attach_pixels, + // .attach_shm = TODO + .get_matrix = gles2_surface_get_matrix, + .bind = gles2_surface_bind, + .destroy = gles2_surface_destroy, +}; + +struct wlr_surface *gles2_surface_init() { + struct wlr_surface_state *state = calloc(sizeof(struct wlr_surface_state), 1); + struct wlr_surface *surface = wlr_surface_init(state, &wlr_surface_impl); + state->wlr_surface = surface; + return surface; +} -- cgit v1.2.3