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fix: window resize updates happen each update.

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This commit is contained in:
Quinn
2025-07-03 11:52:25 +02:00
parent 2d059cf1db
commit 9de6e7f92e
1 changed files with 6 additions and 7 deletions
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13
src/io/render.c
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@@ -9,7 +9,6 @@
#include "../error.h" #include "../error.h"
#include "../util/types.h" #include "../util/types.h"
#include "../util/vec/int2.h"
#include "shader.h" #include "shader.h"
#define VERTC 3 #define VERTC 3
@@ -17,6 +16,7 @@ static GLuint pipe;
static GLuint vbo; // vertex buffer object static GLuint vbo; // vertex buffer object
static GLuint vao; // vertex array object static GLuint vao; // vertex array object
static GLuint screen_loc; // location to where OpenGL sends to the shaders of the screen dimensions static GLuint screen_loc; // location to where OpenGL sends to the shaders of the screen dimensions
static int win_w, win_h;
static void screen_resize(int w, int h) { static void screen_resize(int w, int h) {
i32 verts[VERTC][4] = { i32 verts[VERTC][4] = {
@@ -28,6 +28,8 @@ static void screen_resize(int w, int h) {
glUniform2i(screen_loc, w, h); // send the screen dimensions to the shader pipeline glUniform2i(screen_loc, w, h); // send the screen dimensions to the shader pipeline
glViewport(0, 0, w, h); // update the viewport glViewport(0, 0, w, h); // update the viewport
glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_DYNAMIC_DRAW); // bind the data to it glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_DYNAMIC_DRAW); // bind the data to it
win_w = w;
win_h = h;
} }
int render_init(void) { int render_init(void) {
@@ -62,7 +64,7 @@ int render_init(void) {
return 0; return 0;
} }
void render_update(GLFWwindow* win) { void render_update(GLFWwindow *win) {
glDisable(GL_DEPTH_TEST); glDisable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE); glDisable(GL_CULL_FACE);
@@ -70,11 +72,8 @@ void render_update(GLFWwindow* win) {
glfwGetWindowSize(win, &w, &h); glfwGetWindowSize(win, &w, &h);
glUseProgram(pipe); glUseProgram(pipe);
int2 windim = {0}; if (w != win_w || h != win_h)
if (w != windim.x || h != windim.y) { // false negative when h and w swap integers, but this is quite a rare occurrence and it's impact is minimal screen_resize(w, h);
windim = (int2){w, h};
screen_resize(windim.x, windim.y);
}
glClearColor(0.1F, 0.1F, 0.1F, 1.0F); glClearColor(0.1F, 0.1F, 0.1F, 1.0F);
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT); glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);