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Merge pull request #862 from emersion/renderer-scissor-upside-down

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Make wlr_renderer_scissor take normal coords instead of upside-down ones
This commit is contained in:
Drew DeVault 2018-04-13 09:32:41 -04:00 committed by GitHub
commit 63763d3279
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 17 additions and 9 deletions
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2
include/render/gles2.h
View file

@ -38,6 +38,8 @@ struct wlr_gles2_renderer {
GLuint tex_rgbx;
GLuint tex_ext;
} shaders;
uint32_t viewport_width, viewport_height;
};
enum wlr_gles2_texture_type {

10
render/gles2/renderer.c
View file

@ -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) {
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) {
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);

5
rootston/output.c
View file

@ -177,9 +177,8 @@ static void scissor_output(struct roots_output *output, pixman_box32_t *rect) {
wlr_output_transformed_resolution(output->wlr_output, &ow, &oh);
// Scissor is in renderer coordinates, ie. upside down
enum wl_output_transform transform = wlr_output_transform_compose(
wlr_output_transform_invert(wlr_output->transform),
WL_OUTPUT_TRANSFORM_FLIPPED_180);
enum wl_output_transform transform =
wlr_output_transform_invert(wlr_output->transform);
wlr_box_transform(&box, transform, ow, oh, &box);
wlr_renderer_scissor(renderer, &box);

5
types/wlr_output.c
View file

@ -339,9 +339,8 @@ static void output_scissor(struct wlr_output *output, pixman_box32_t *rect) {
wlr_output_transformed_resolution(output, &ow, &oh);
// Scissor is in renderer coordinates, ie. upside down
enum wl_output_transform transform = wlr_output_transform_compose(
wlr_output_transform_invert(output->transform),
WL_OUTPUT_TRANSFORM_FLIPPED_180);
enum wl_output_transform transform =
wlr_output_transform_invert(output->transform);
wlr_box_transform(&box, transform, ow, oh, &box);
wlr_renderer_scissor(renderer, &box);