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move matrix model code to matrix.h

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This commit is contained in:
Tony Crisci 2018-01-21 15:53:29 -05:00
parent 7474f00591
commit d13114520a
5 changed files with 68 additions and 56 deletions
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3
include/wlr/render/matrix.h
View file

@ -2,6 +2,7 @@
#define WLR_RENDER_MATRIX_H
#include <stdint.h>
#include <wlr/types/wlr_box.h>
void wlr_matrix_identity(float (*output)[16]);
void wlr_matrix_translate(float (*output)[16], float x, float y, float z);
@ -14,5 +15,7 @@ void wlr_matrix_transform(float mat[static 16],
enum wl_output_transform transform);
void wlr_matrix_texture(float mat[static 16], int32_t width, int32_t height,
enum wl_output_transform transform);
void wlr_matrix_box_model(float (*mat)[16], struct wlr_box *box,
enum wl_output_transform transform, float rotation);
#endif

7
include/wlr/types/wlr_output.h
View file

@ -136,11 +136,4 @@ enum wl_output_transform wlr_output_transform_invert(
enum wl_output_transform wlr_output_transform_compose(
enum wl_output_transform tr_a, enum wl_output_transform tr_b);
/**
* Get a matrix suitable for rendering a box on the output.
*/
void wlr_output_get_box_matrix(struct wlr_output *output, int ox, int oy,
int width, int height, enum wl_output_transform transform,
float rotation, float (*mat)[16]);
#endif

46
render/matrix.c
View file

@ -1,6 +1,8 @@
#include <string.h>
#include <math.h>
#include <wayland-server-protocol.h>
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_output.h>
#include <wlr/render/matrix.h>
/* Obtains the index for the given row/column */
@ -158,3 +160,47 @@ void wlr_matrix_texture(float mat[static 16], int32_t width, int32_t height,
mat[10] = 1.0f;
mat[15] = 1.0f;
}
void wlr_matrix_box_model(float (*mat)[16], struct wlr_box *box,
enum wl_output_transform transform, float rotation) {
int x = box->x;
int y = box->y;
int width = box->width;
int height = box->height;
float translate_center[16];
wlr_matrix_translate(&translate_center,
(int)x + width / 2, (int)y + height / 2, 0);
float rotate[16];
wlr_matrix_rotate(&rotate, rotation);
float translate_origin[16];
wlr_matrix_translate(&translate_origin, -width / 2,
-height / 2, 0);
float scale[16];
wlr_matrix_scale(&scale, width, height, 1);
wlr_matrix_mul(&translate_center, &rotate, mat);
wlr_matrix_mul(mat, &translate_origin, mat);
wlr_matrix_mul(mat, &scale, mat);
if (transform != WL_OUTPUT_TRANSFORM_NORMAL) {
float surface_translate_center[16];
wlr_matrix_translate(&surface_translate_center, 0.5, 0.5, 0);
float surface_transform[16];
wlr_matrix_transform(surface_transform,
wlr_output_transform_invert(transform));
float surface_translate_origin[16];
wlr_matrix_translate(&surface_translate_origin, -0.5, -0.5, 0);
wlr_matrix_mul(mat, &surface_translate_center,
mat);
wlr_matrix_mul(mat, &surface_transform, mat);
wlr_matrix_mul(mat, &surface_translate_origin,
mat);
}
}

25
rootston/output.c
View file

@ -52,9 +52,16 @@ static void render_surface(struct wlr_surface *surface,
.width = render_width, .height = render_height,
};
if (wlr_output_layout_intersects(desktop->layout, wlr_output, &render_box)) {
struct wlr_box model_box = {
.x = ox,
.y = oy,
.width = render_width,
.height = render_height,
};
float matrix[16];
wlr_output_get_box_matrix(wlr_output, ox, oy, render_width,
render_height, surface->current->transform, rotation, &matrix);
wlr_matrix_box_model(&matrix, &model_box, surface->current->transform,
rotation);
wlr_matrix_mul(&wlr_output->transform_matrix, &matrix, &matrix);
wlr_render_with_matrix(desktop->server->renderer, surface->texture,
&matrix);
@ -157,11 +164,17 @@ static void render_decorations(struct roots_view *view,
ox *= output->scale;
oy *= output->scale;
float matrix[16];
wlr_output_get_box_matrix(output, ox, oy, deco_box.width,
deco_box.height, WL_OUTPUT_TRANSFORM_NORMAL, view->rotation,
&matrix);
struct wlr_box model_box = {
.x = ox,
.y = oy,
.width = deco_box.width,
.height = deco_box.height,
};
float matrix[16];
wlr_matrix_box_model(&matrix, &model_box, WL_OUTPUT_TRANSFORM_NORMAL,
view->rotation);
wlr_matrix_mul(&output->transform_matrix, &matrix, &matrix);
float color[4] = { 0.2, 0.2, 0.2, 1 };
wlr_render_colored_quad(desktop->server->renderer, &color, &matrix);
}

43
types/wlr_output.c
View file

@ -751,46 +751,3 @@ enum wl_output_transform wlr_output_transform_compose(
}
return flipped | rotated;
}
void wlr_output_get_box_matrix(struct wlr_output *output, int ox, int oy,
int width, int height, enum wl_output_transform transform,
float rotation, float (*mat)[16]) {
float translate_center[16];
wlr_matrix_translate(&translate_center,
(int)ox + width / 2, (int)oy + height / 2, 0);
float rotate[16];
wlr_matrix_rotate(&rotate, rotation);
float translate_origin[16];
wlr_matrix_translate(&translate_origin, -width / 2,
-height / 2, 0);
float scale[16];
wlr_matrix_scale(&scale, width, height, 1);
float transform_matrix[16];
wlr_matrix_mul(&translate_center, &rotate, &transform_matrix);
wlr_matrix_mul(&transform_matrix, &translate_origin, &transform_matrix);
wlr_matrix_mul(&transform_matrix, &scale, &transform_matrix);
if (transform != WL_OUTPUT_TRANSFORM_NORMAL) {
float surface_translate_center[16];
wlr_matrix_translate(&surface_translate_center, 0.5, 0.5, 0);
float surface_transform[16];
wlr_matrix_transform(surface_transform,
wlr_output_transform_invert(transform));
float surface_translate_origin[16];
wlr_matrix_translate(&surface_translate_origin, -0.5, -0.5, 0);
wlr_matrix_mul(&transform_matrix, &surface_translate_center,
&transform_matrix);
wlr_matrix_mul(&transform_matrix, &surface_transform, &transform_matrix);
wlr_matrix_mul(&transform_matrix, &surface_translate_origin,
&transform_matrix);
}
wlr_matrix_mul(&output->transform_matrix, &transform_matrix, mat);
}