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resizing size text should be drawn with the current foreground color

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Kovid Goyal 2021-11-01 07:19:17 +05:30
parent fffee1049f
commit ddfa653197
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GPG Key ID: 06BC317B515ACE7C
2 changed files with 9 additions and 22 deletions
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17
kitty/graphics_fragment.glsl
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@ -3,7 +3,7 @@
uniform sampler2D image;
#ifdef ALPHA_MASK
uniform uint fg;
uniform vec3 amask_fg;
uniform float alpha_mask_premult;
#else
uniform float inactive_text_alpha;
@ -12,23 +12,10 @@ uniform float inactive_text_alpha;
in vec2 texcoord;
out vec4 color;
#ifdef ALPHA_MASK
const uint BYTE_MASK = uint(0xFF);
vec3 color_to_vec(uint c) {
uint r, g, b;
r = (c >> 16) & BYTE_MASK;
g = (c >> 8) & BYTE_MASK;
b = c & BYTE_MASK;
return vec3(float(r) / 255.0, float(g) / 255.0, float(b) / 255.0);
}
#endif
void main() {
color = texture(image, texcoord);
#ifdef ALPHA_MASK
color = vec4(color_to_vec(fg), color.r);
color = vec4(amask_fg, color.r);
color = mix(color, vec4(color.rgb * color.a, color.a), alpha_mask_premult);
#else
color.a *= inactive_text_alpha;

14
kitty/shaders.c
View File

@ -244,8 +244,7 @@ create_graphics_vao() {
struct CellUniformData {
bool constants_set;
bool alpha_mask_fg_set;
GLint gploc, gpploc, cploc, cfploc, fg_loc, amask_premult_loc;
GLint gploc, gpploc, cploc, cfploc, fg_loc, amask_premult_loc, amask_fg_loc, amask_image_loc;
GLfloat prev_inactive_text_alpha;
};
@ -468,11 +467,10 @@ draw_centered_alpha_mask(OSWindow *os_window, size_t screen_width, size_t screen
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, width, height, 0, GL_RED, GL_UNSIGNED_BYTE, canvas);
bind_program(GRAPHICS_ALPHA_MASK_PROGRAM);
if (!cell_uniform_data.alpha_mask_fg_set) {
cell_uniform_data.alpha_mask_fg_set = true;
glUniform1i(glGetUniformLocation(program_id(GRAPHICS_ALPHA_MASK_PROGRAM), "image"), GRAPHICS_UNIT);
glUniform1ui(glGetUniformLocation(program_id(GRAPHICS_ALPHA_MASK_PROGRAM), "fg"), OPT(foreground));
}
glUniform1i(cell_uniform_data.amask_image_loc, GRAPHICS_UNIT);
#define CV3(x) (((float)((x >> 16) & 0xff))/255.f), (((float)((x >> 8) & 0xff))/255.f), (((float)(x & 0xff))/255.f)
glUniform3f(cell_uniform_data.amask_fg_loc, CV3(OPT(foreground)));
#undef CV3
glUniform1f(cell_uniform_data.amask_premult_loc, os_window->is_semi_transparent ? 1.f : 0.f);
send_graphics_data_to_gpu(1, os_window->gvao_idx, &data);
glEnable(GL_BLEND);
@ -524,6 +522,8 @@ set_cell_uniforms(float current_inactive_text_alpha, bool force) {
cell_uniform_data.cploc = glGetUniformLocation(program_id(CELL_PROGRAM), "inactive_text_alpha");
cell_uniform_data.cfploc = glGetUniformLocation(program_id(CELL_FG_PROGRAM), "inactive_text_alpha");
cell_uniform_data.amask_premult_loc = glGetUniformLocation(program_id(GRAPHICS_ALPHA_MASK_PROGRAM), "alpha_mask_premult");
cell_uniform_data.amask_fg_loc = glGetUniformLocation(program_id(GRAPHICS_ALPHA_MASK_PROGRAM), "amask_fg");
cell_uniform_data.amask_image_loc = glGetUniformLocation(program_id(GRAPHICS_ALPHA_MASK_PROGRAM), "image");
#define S(prog, name, val, type) { bind_program(prog); glUniform##type(glGetUniformLocation(program_id(prog), #name), val); }
S(GRAPHICS_PROGRAM, image, GRAPHICS_UNIT, 1i);
S(GRAPHICS_PREMULT_PROGRAM, image, GRAPHICS_UNIT, 1i);