mirror of
https://github.com/Kbz-8/Pulse.git
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89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
// Copyright (C) 2025 kanel
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// This file is part of "Pulse"
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// For conditions of distribution and use, see copyright notice in LICENSE
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#include <Pulse.h>
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#include "../../PulseInternal.h"
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#include "OpenGL.h"
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PulseBackendFlags OpenGLCheckSupport(PulseBackendFlags candidates, PulseShaderFormatsFlags shader_formats_used)
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{
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if(candidates != PULSE_BACKEND_ANY && ((candidates & PULSE_BACKEND_OPENGL) == 0 || (candidates & PULSE_BACKEND_OPENGL_ES) == 0))
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return PULSE_BACKEND_INVALID;
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if((shader_formats_used & PULSE_SHADER_FORMAT_GLSL_BIT) == 0)
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return PULSE_BACKEND_INVALID;
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EGLInstance instance;
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if(!EGLLoadInstance(&instance, candidates))
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return PULSE_BACKEND_INVALID;
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EGLUnloadInstance(&instance);
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return PULSE_BACKEND_OPENGL;
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}
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bool OpenGLLoadBackend(PulseBackend backend, PulseDebugLevel debug_level)
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{
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PULSE_UNUSED(backend);
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PULSE_UNUSED(debug_level);
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OpenGLDriverData* driver_data = (OpenGLDriverData*)calloc(1, sizeof(OpenGLDriverData));
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PULSE_CHECK_ALLOCATION_RETVAL(driver_data, false);
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#ifdef PULSE_PLAT_WINDOWS
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// WGL support
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#else
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EGLLoadInstance(&driver_data->egl_instance, false);
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#endif
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OpenGLDriver.driver_data = driver_data;
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return true;
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}
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void OpenGLUnloadBackend(PulseBackend backend)
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{
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EGLUnloadInstance(&OPENGL_RETRIEVE_DRIVER_DATA_AS(backend, OpenGLDriverData*)->egl_instance);
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free(backend->driver_data);
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}
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PulseBackendFlags OpenGLESCheckSupport(PulseBackendFlags candidates, PulseShaderFormatsFlags shader_formats_used)
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{
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if(candidates != PULSE_BACKEND_ANY && (candidates & PULSE_BACKEND_OPENGL) == 0)
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return PULSE_BACKEND_INVALID;
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if((shader_formats_used & PULSE_SHADER_FORMAT_GLSL_BIT) == 0)
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return PULSE_BACKEND_INVALID;
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return PULSE_BACKEND_OPENGL;
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}
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bool OpenGLESLoadBackend(PulseBackend backend, PulseDebugLevel debug_level)
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{
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PULSE_UNUSED(backend);
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PULSE_UNUSED(debug_level);
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OpenGLDriverData* driver_data = (OpenGLDriverData*)calloc(1, sizeof(OpenGLDriverData));
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PULSE_CHECK_ALLOCATION_RETVAL(driver_data, false);
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EGLLoadInstance(&driver_data->egl_instance, true);
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OpenGLDriver.driver_data = driver_data;
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return true;
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}
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void OpenGLESUnloadBackend(PulseBackend backend)
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{
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EGLUnloadInstance(&OPENGL_RETRIEVE_DRIVER_DATA_AS(backend, OpenGLDriverData*)->egl_instance);
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free(backend->driver_data);
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}
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PulseBackendHandler OpenGLDriver = {
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.PFN_LoadBackend = OpenGLLoadBackend,
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.PFN_UnloadBackend = OpenGLUnloadBackend,
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.PFN_CreateDevice = PULSE_NULLPTR,
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.backend = PULSE_BACKEND_OPENGL,
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.supported_shader_formats = PULSE_SHADER_FORMAT_GLSL_BIT,
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.driver_data = PULSE_NULLPTR
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};
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PulseBackendHandler OpenGLESDriver = {
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.PFN_LoadBackend = OpenGLESLoadBackend,
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.PFN_UnloadBackend = OpenGLESUnloadBackend,
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.PFN_CreateDevice = PULSE_NULLPTR,
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.backend = PULSE_BACKEND_OPENGL_ES,
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.supported_shader_formats = PULSE_SHADER_FORMAT_GLSL_BIT,
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.driver_data = PULSE_NULLPTR
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};
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