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[client] egl: make damage overlay support rendering rotated rectangles

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This commit is contained in:
Quantum 2021-07-25 02:35:28 -04:00 committed by Geoffrey McRae
parent 2ef80a5d34
commit d0722349e6
2 changed files with 12 additions and 4 deletions
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14
client/renderers/EGL/damage.c
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@ -48,6 +48,7 @@ struct EGL_Damage
int width , height;
float translateX, translateY;
float scaleX , scaleY;
bool rotate;
// uniforms
GLint uTransform;
@ -133,10 +134,12 @@ void egl_damage_free(EGL_Damage ** damage)
static void update_matrix(EGL_Damage * damage)
{
damage->transform[0] = 2.0f * damage->scaleX / damage->width;
int width = damage->rotate ? damage->height : damage->width;
int height = damage->rotate ? damage->width : damage->height;
damage->transform[0] = 2.0f * damage->scaleX / width;
damage->transform[1] = 0.0f;
damage->transform[2] = 0.0f;
damage->transform[3] = -2.0f * damage->scaleY / damage->height;
damage->transform[3] = -2.0f * damage->scaleY / height;
damage->transform[4] = damage->translateX - damage->scaleX;
damage->transform[5] = damage->translateY + damage->scaleY;
}
@ -170,11 +173,16 @@ inline static void rectToVertices(GLfloat * vertex, const FrameDamageRect * rect
vertex[7] = rect->y + rect->height;
}
bool egl_damage_render(EGL_Damage * damage, const struct DesktopDamage * data)
bool egl_damage_render(EGL_Damage * damage, bool rotate, const struct DesktopDamage * data)
{
if (!damage->show || (!data && damage->count == -1))
return false;
if (rotate != damage->rotate)
{
damage->rotate = rotate;
update_matrix(damage);
}
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

2
client/renderers/EGL/damage.h
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@ -37,4 +37,4 @@ void egl_damage_free(EGL_Damage ** damage);
void egl_damage_setup(EGL_Damage * damage, int width, int height);
void egl_damage_resize(EGL_Damage * damage, float translateX, float translateY,
float scaleX, float scaleY);
bool egl_damage_render(EGL_Damage * damage, const struct DesktopDamage * data);
bool egl_damage_render(EGL_Damage * damage, bool rotate, const struct DesktopDamage * data);