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Make wlr_renderer_scissor take normal coords instead of upside-down ones

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This commit is contained in:
emersion 2018-04-12 19:38:33 -04:00
parent 8f4039d799
commit 1b802d9251
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GPG key ID: 0FDE7BE0E88F5E48
4 changed files with 17 additions and 9 deletions
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14
render/gles2/renderer.c
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@ -31,11 +31,14 @@ static struct wlr_gles2_renderer *gles2_get_renderer_in_context(
static void gles2_begin(struct wlr_renderer *wlr_renderer, uint32_t width,
uint32_t height) {
gles2_get_renderer_in_context(wlr_renderer);
struct wlr_gles2_renderer *renderer =
gles2_get_renderer_in_context(wlr_renderer);
GLES2_DEBUG_PUSH;
glViewport(0, 0, width, height);
renderer->viewport_width = width;
renderer->viewport_height = height;
// enable transparency
glEnable(GL_BLEND);
@ -64,11 +67,16 @@ static void gles2_clear(struct wlr_renderer *wlr_renderer,
static void gles2_scissor(struct wlr_renderer *wlr_renderer,
struct wlr_box *box) {
gles2_get_renderer_in_context(wlr_renderer);
struct wlr_gles2_renderer *renderer =
gles2_get_renderer_in_context(wlr_renderer);
GLES2_DEBUG_PUSH;
if (box != NULL) {
glScissor(box->x, box->y, box->width, box->height);
struct wlr_box gl_box;
wlr_box_transform(box, WL_OUTPUT_TRANSFORM_FLIPPED_180,
renderer->viewport_width, renderer->viewport_height, &gl_box);
glScissor(gl_box.x, gl_box.y, gl_box.width, gl_box.height);
glEnable(GL_SCISSOR_TEST);
} else {
glDisable(GL_SCISSOR_TEST);