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win_opengl: (WIP)UI for options. Add comments to help find conditionals that put opengl in dev_branch.

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ts-korhonen
2021-04-21 01:33:01 +03:00
parent 58d2f6e3ff
commit 3088c6c26f
10 changed files with 97 additions and 41 deletions
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57
src/win/win_opengl.c
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@@ -41,6 +41,7 @@
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <86box/86box.h>
#include <86box/plat.h>
@@ -52,13 +53,6 @@
static const int INIT_WIDTH = 640;
static const int INIT_HEIGHT = 400;
/* Option; Target framerate: Sync with emulation / 25 fps / 30 fps / 50 fps / 60 fps / 75 fps */
static const int SYNC_WITH_BLITTER = 1;
static const int TARGET_FRAMETIME = 13;
/* Option; Vsync: Off / On */
static const int VSYNC = 0;
/**
* @brief A dedicated OpenGL thread.
* OpenGL context's don't handle multiple threads well.
@@ -89,9 +83,10 @@ static union
{
HANDLE closing;
HANDLE resize;
HANDLE reload;
HANDLE blit_waiting;
};
HANDLE asArray[3];
HANDLE asArray[4];
} sync_objects = { 0 };
/**
@@ -115,6 +110,16 @@ static volatile struct
int width, height, fullscreen, scaling_mode;
} resize_info = { 0 };
/**
* @brief Renderer options
*/
static volatile struct
{
int vsync; /* Vertical sync; 0 = off, 1 = on */
int frametime; /* Frametime in ms, or -1 to sync with blitter */
char shaderfile[512]; /* Shader file path. Match the length of openfilestring in win_dialog.c */
} options = { 0 };
/**
* @brief Identifiers to OpenGL objects and uniforms.
*/
@@ -133,15 +138,6 @@ typedef struct
GLint frame_count;
} gl_identifiers;
/**
* @brief Userdata to pass onto windows message hook
*/
typedef struct
{
HWND window;
int* fullscreen;
} winmessage_data;
/**
* @brief Set or unset OpenGL context window as a child window.
*
@@ -269,7 +265,7 @@ static gl_identifiers initialize_glcontext()
glClearColor(0.f, 0.f, 0.f, 1.f);
gl.shader_progID = load_custom_shaders();
gl.shader_progID = load_custom_shaders(options.shaderfile);
if (gl.shader_progID == 0)
gl.shader_progID = load_default_shaders();
@@ -362,7 +358,7 @@ static void opengl_main(void* param)
window = SDL_CreateWindow("86Box OpenGL Renderer", 0, 0, resize_info.width, resize_info.height, SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS);
SDL_GL_SetSwapInterval(VSYNC);
SDL_GL_SetSwapInterval(options.vsync);
/* Keep track of certain parameters, only changed in this thread to avoid race conditions */
int fullscreen = resize_info.fullscreen, video_width = INIT_WIDTH, video_height = INIT_HEIGHT;
@@ -374,9 +370,6 @@ static void opengl_main(void* param)
if (wmi.subsystem == SDL_SYSWM_WINDOWS)
window_hwnd = wmi.info.win.window;
/* Pass window handle and full screen mode to windows message hook */
winmessage_data msg_data = (winmessage_data){ window_hwnd, &fullscreen };
if (!fullscreen)
set_parent_binding(1);
else
@@ -391,23 +384,23 @@ static void opengl_main(void* param)
if (gl.frame_count != -1)
glUniform1i(gl.frame_count, 0);
uint32_t last_swap = -TARGET_FRAMETIME;
uint32_t last_swap = -options.frametime;
/* Render loop */
int closing = 0;
while (!closing)
{
if (SYNC_WITH_BLITTER)
if (options.frametime < 0)
render_and_swap(gl);
DWORD wait_result = WAIT_TIMEOUT;
do
{
if (!SYNC_WITH_BLITTER)
if (options.frametime >= 0)
{
uint32_t ticks = plat_get_ticks();
if (ticks - last_swap > TARGET_FRAMETIME)
if (ticks - last_swap >= options.frametime)
{
render_and_swap(gl);
last_swap = ticks;
@@ -591,6 +584,10 @@ int opengl_init(HWND hwnd)
resize_info.fullscreen = video_fullscreen & 1;
resize_info.scaling_mode = video_fullscreen_scale;
options.vsync = video_vsync;
options.frametime = -1;
strcpy_s(options.shaderfile, sizeof(options.shaderfile), "shaders/shader.glsl");
thread = thread_create(opengl_main, (void*)NULL);
atexit(opengl_close);
@@ -652,4 +649,12 @@ void opengl_resize(int w, int h)
resize_info.scaling_mode = video_fullscreen_scale;
SetEvent(sync_objects.resize);
}
void opengl_reload(void)
{
if (thread == NULL)
return;
SetEvent(sync_objects.reload);
}