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big rendering overhaul (cleaning and api abstraction)

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This commit is contained in:
veclavtalica
2025-01-14 23:20:54 +03:00
parent b7cb37c06a
commit 5059802d09
25 changed files with 290 additions and 424 deletions
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56
src/twn_loop.c
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@ -12,13 +12,6 @@
#include <stb_ds.h>
#include <toml.h>
/* TODO: should not be used here directly */
#ifdef EMSCRIPTEN
#include <GLES2/gl2.h>
#else
#include <glad/glad.h>
#endif
#include <stdbool.h>
#include <limits.h>
@ -100,28 +93,6 @@ static void poll_events(void) {
}
#ifndef EMSCRIPTEN
static void APIENTRY opengl_log(GLenum source,
GLenum type,
GLuint id,
GLenum severity,
GLsizei length,
const GLchar* message,
const void* userParam)
{
(void)source;
(void)type;
(void)id;
(void)severity;
(void)userParam;
log_info("OpenGL: %.*s\n", length, message);
}
#endif
static void preserve_persistent_ctx_fields(void) {
ctx.game.udata = ctx.game_copy.udata;
}
@ -539,25 +510,13 @@ static bool initialize(void) {
if (SDL_GL_SetSwapInterval(-1))
SDL_GL_SetSwapInterval(1);
#ifndef EMSCRIPTEN
if (gladLoadGL() == 0) {
CRY("Init", "GLAD failed");
if (!render_init())
goto fail;
}
#endif
log_info("OpenGL context: %s\n", glGetString(GL_VERSION));
#ifndef EMSCRIPTEN
glHint(GL_TEXTURE_COMPRESSION_HINT, GL_NICEST);
glHint(GL_GENERATE_MIPMAP_HINT, GL_NICEST);
glHint(GL_FOG_HINT, GL_FASTEST);
#endif
/* might need this to have multiple windows */
ctx.window_id = SDL_GetWindowID(ctx.window);
glViewport(0, 0, (GLsizei)ctx.base_render_width, (GLsizei)ctx.base_render_height);
setup_viewport(0, 0, (int)ctx.base_render_width, (int)ctx.base_render_height);
/* TODO: */
// SDL_GetRendererOutputSize(ctx.renderer, &ctx.window_w, &ctx.window_h);
@ -596,14 +555,6 @@ static bool initialize(void) {
/* you could change this at runtime if you wanted */
ctx.update_multiplicity = 1;
#ifndef EMSCRIPTEN
/* hook up opengl debugging callback */
if (ctx.game.debug) {
glEnable(GL_DEBUG_OUTPUT);
glDebugMessageCallback(opengl_log, NULL);
}
#endif
/* random seeding */
/* SDL_GetPerformanceCounter returns some platform-dependent number. */
/* it should vary between game instances. i checked! random enough for me. */
@ -718,6 +669,9 @@ static bool initialize(void) {
ctx.render_double_buffered = true;
ctx.window_mouse_resident = true;
ctx.game.fog_color = (Color){ 255, 255, 255, 255 }; /* TODO: pick some grey? */
ctx.game.fog_end = 1.0f;
return true;
fail: