[win32 port] Hello triangle in OpenGL 4.3

This commit is contained in:
martinfouilleul 2022-12-21 19:43:31 +01:00
parent 2421871c3e
commit c57e16db5a
4 changed files with 13356 additions and 5 deletions

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@ -23,7 +23,48 @@
#include"graphics.c" #include"graphics.c"
#include"win32_gl_surface.c" #include"win32_gl_surface.c"
//#define LOG_SUBSYSTEM "Main" #define LOG_SUBSYSTEM "Main"
unsigned int program;
const char* vshaderSource =
"#version 430\n"
"attribute vec4 vPosition;\n"
"uniform mat4 transform;\n"
"void main()\n"
"{\n"
" gl_Position = transform*vPosition;\n"
"}\n";
const char* fshaderSource =
"#version 430\n"
"precision mediump float;\n"
"void main()\n"
"{\n"
" gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
"}\n";
void compile_shader(GLuint shader, const char* source)
{
glShaderSource(shader, 1, &source, 0);
glCompileShader(shader);
int err = glGetError();
if(err)
{
printf("gl error: %i\n", err);
}
int status = 0;
glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
if(!status)
{
char buffer[256];
int size = 0;
glGetShaderInfoLog(shader, 256, &size, buffer);
printf("shader error: %.*s\n", size, buffer);
}
}
int main() int main()
{ {
@ -33,9 +74,48 @@ int main()
mp_rect rect = {.x = 100, .y = 100, .w = 800, .h = 600}; mp_rect rect = {.x = 100, .y = 100, .w = 800, .h = 600};
mp_window window = mp_window_create(rect, "test", 0); mp_window window = mp_window_create(rect, "test", 0);
//TODO: create surface
//NOTE: create surface
mg_surface surface = mg_surface_create_for_window(window, MG_BACKEND_GL); mg_surface surface = mg_surface_create_for_window(window, MG_BACKEND_GL);
//NOTE: init shader and gl state
GLuint vao;
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
GLuint vertexBuffer;
glGenBuffers(1, &vertexBuffer);
GLfloat vertices[] = {
-0.866/2, -0.5/2, 0, 0.866/2, -0.5/2, 0, 0, 0.5, 0};
glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
unsigned int vshader = glCreateShader(GL_VERTEX_SHADER);
unsigned int fshader = glCreateShader(GL_FRAGMENT_SHADER);
program = glCreateProgram();
compile_shader(vshader, vshaderSource);
compile_shader(fshader, fshaderSource);
glAttachShader(program, vshader);
glAttachShader(program, fshader);
glLinkProgram(program);
int status = 0;
glGetProgramiv(program, GL_LINK_STATUS, &status);
if(!status)
{
char buffer[256];
int size = 0;
glGetProgramInfoLog(program, 256, &size, buffer);
printf("link error: %.*s\n", size, buffer);
}
glUseProgram(program);
mp_window_bring_to_front_and_focus(window); mp_window_bring_to_front_and_focus(window);
while(!mp_should_quit()) while(!mp_should_quit())
@ -67,10 +147,31 @@ int main()
mg_surface_prepare(surface); mg_surface_prepare(surface);
//DO stuff glClearColor(0.3, 0.3, 1, 1);
glClearColor(1, 0, 1, 1);
glClear(GL_COLOR_BUFFER_BIT); glClear(GL_COLOR_BUFFER_BIT);
static float alpha = 0;
//f32 aspect = frameSize.x/frameSize.y;
f32 aspect = 800/(f32)600;
glViewport(0, 0, 800, 600);
GLfloat matrix[] = {cosf(alpha)/aspect, sinf(alpha), 0, 0,
-sinf(alpha)/aspect, cosf(alpha), 0, 0,
0, 0, 1, 0,
0, 0, 0, 1};
alpha += 2*M_PI/120;
glUniformMatrix4fv(0, 1, false, matrix);
glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(0);
glDrawArrays(GL_TRIANGLES, 0, 3);
mg_surface_present(surface); mg_surface_present(surface);
} }

12898
ext/GL/glext.h Normal file

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311
ext/KHR/khrplatform.h Normal file
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@ -0,0 +1,311 @@
#ifndef __khrplatform_h_
#define __khrplatform_h_
/*
** Copyright (c) 2008-2018 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/
/* Khronos platform-specific types and definitions.
*
* The master copy of khrplatform.h is maintained in the Khronos EGL
* Registry repository at https://github.com/KhronosGroup/EGL-Registry
* The last semantic modification to khrplatform.h was at commit ID:
* 67a3e0864c2d75ea5287b9f3d2eb74a745936692
*
* Adopters may modify this file to suit their platform. Adopters are
* encouraged to submit platform specific modifications to the Khronos
* group so that they can be included in future versions of this file.
* Please submit changes by filing pull requests or issues on
* the EGL Registry repository linked above.
*
*
* See the Implementer's Guidelines for information about where this file
* should be located on your system and for more details of its use:
* http://www.khronos.org/registry/implementers_guide.pdf
*
* This file should be included as
* #include <KHR/khrplatform.h>
* by Khronos client API header files that use its types and defines.
*
* The types in khrplatform.h should only be used to define API-specific types.
*
* Types defined in khrplatform.h:
* khronos_int8_t signed 8 bit
* khronos_uint8_t unsigned 8 bit
* khronos_int16_t signed 16 bit
* khronos_uint16_t unsigned 16 bit
* khronos_int32_t signed 32 bit
* khronos_uint32_t unsigned 32 bit
* khronos_int64_t signed 64 bit
* khronos_uint64_t unsigned 64 bit
* khronos_intptr_t signed same number of bits as a pointer
* khronos_uintptr_t unsigned same number of bits as a pointer
* khronos_ssize_t signed size
* khronos_usize_t unsigned size
* khronos_float_t signed 32 bit floating point
* khronos_time_ns_t unsigned 64 bit time in nanoseconds
* khronos_utime_nanoseconds_t unsigned time interval or absolute time in
* nanoseconds
* khronos_stime_nanoseconds_t signed time interval in nanoseconds
* khronos_boolean_enum_t enumerated boolean type. This should
* only be used as a base type when a client API's boolean type is
* an enum. Client APIs which use an integer or other type for
* booleans cannot use this as the base type for their boolean.
*
* Tokens defined in khrplatform.h:
*
* KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
*
* KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
* KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
*
* Calling convention macros defined in this file:
* KHRONOS_APICALL
* KHRONOS_APIENTRY
* KHRONOS_APIATTRIBUTES
*
* These may be used in function prototypes as:
*
* KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
* int arg1,
* int arg2) KHRONOS_APIATTRIBUTES;
*/
#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC)
# define KHRONOS_STATIC 1
#endif
/*-------------------------------------------------------------------------
* Definition of KHRONOS_APICALL
*-------------------------------------------------------------------------
* This precedes the return type of the function in the function prototype.
*/
#if defined(KHRONOS_STATIC)
/* If the preprocessor constant KHRONOS_STATIC is defined, make the
* header compatible with static linking. */
# define KHRONOS_APICALL
#elif defined(_WIN32)
# define KHRONOS_APICALL __declspec(dllimport)
#elif defined (__SYMBIAN32__)
# define KHRONOS_APICALL IMPORT_C
#elif defined(__ANDROID__)
# define KHRONOS_APICALL __attribute__((visibility("default")))
#else
# define KHRONOS_APICALL
#endif
/*-------------------------------------------------------------------------
* Definition of KHRONOS_APIENTRY
*-------------------------------------------------------------------------
* This follows the return type of the function and precedes the function
* name in the function prototype.
*/
#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
/* Win32 but not WinCE */
# define KHRONOS_APIENTRY __stdcall
#else
# define KHRONOS_APIENTRY
#endif
/*-------------------------------------------------------------------------
* Definition of KHRONOS_APIATTRIBUTES
*-------------------------------------------------------------------------
* This follows the closing parenthesis of the function prototype arguments.
*/
#if defined (__ARMCC_2__)
#define KHRONOS_APIATTRIBUTES __softfp
#else
#define KHRONOS_APIATTRIBUTES
#endif
/*-------------------------------------------------------------------------
* basic type definitions
*-----------------------------------------------------------------------*/
#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
/*
* Using <stdint.h>
*/
#include <stdint.h>
typedef int32_t khronos_int32_t;
typedef uint32_t khronos_uint32_t;
typedef int64_t khronos_int64_t;
typedef uint64_t khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
/*
* To support platform where unsigned long cannot be used interchangeably with
* inptr_t (e.g. CHERI-extended ISAs), we can use the stdint.h intptr_t.
* Ideally, we could just use (u)intptr_t everywhere, but this could result in
* ABI breakage if khronos_uintptr_t is changed from unsigned long to
* unsigned long long or similar (this results in different C++ name mangling).
* To avoid changes for existing platforms, we restrict usage of intptr_t to
* platforms where the size of a pointer is larger than the size of long.
*/
#if defined(__SIZEOF_LONG__) && defined(__SIZEOF_POINTER__)
#if __SIZEOF_POINTER__ > __SIZEOF_LONG__
#define KHRONOS_USE_INTPTR_T
#endif
#endif
#elif defined(__VMS ) || defined(__sgi)
/*
* Using <inttypes.h>
*/
#include <inttypes.h>
typedef int32_t khronos_int32_t;
typedef uint32_t khronos_uint32_t;
typedef int64_t khronos_int64_t;
typedef uint64_t khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
/*
* Win32
*/
typedef __int32 khronos_int32_t;
typedef unsigned __int32 khronos_uint32_t;
typedef __int64 khronos_int64_t;
typedef unsigned __int64 khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#elif defined(__sun__) || defined(__digital__)
/*
* Sun or Digital
*/
typedef int khronos_int32_t;
typedef unsigned int khronos_uint32_t;
#if defined(__arch64__) || defined(_LP64)
typedef long int khronos_int64_t;
typedef unsigned long int khronos_uint64_t;
#else
typedef long long int khronos_int64_t;
typedef unsigned long long int khronos_uint64_t;
#endif /* __arch64__ */
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#elif 0
/*
* Hypothetical platform with no float or int64 support
*/
typedef int khronos_int32_t;
typedef unsigned int khronos_uint32_t;
#define KHRONOS_SUPPORT_INT64 0
#define KHRONOS_SUPPORT_FLOAT 0
#else
/*
* Generic fallback
*/
#include <stdint.h>
typedef int32_t khronos_int32_t;
typedef uint32_t khronos_uint32_t;
typedef int64_t khronos_int64_t;
typedef uint64_t khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#endif
/*
* Types that are (so far) the same on all platforms
*/
typedef signed char khronos_int8_t;
typedef unsigned char khronos_uint8_t;
typedef signed short int khronos_int16_t;
typedef unsigned short int khronos_uint16_t;
/*
* Types that differ between LLP64 and LP64 architectures - in LLP64,
* pointers are 64 bits, but 'long' is still 32 bits. Win64 appears
* to be the only LLP64 architecture in current use.
*/
#ifdef KHRONOS_USE_INTPTR_T
typedef intptr_t khronos_intptr_t;
typedef uintptr_t khronos_uintptr_t;
#elif defined(_WIN64)
typedef signed long long int khronos_intptr_t;
typedef unsigned long long int khronos_uintptr_t;
#else
typedef signed long int khronos_intptr_t;
typedef unsigned long int khronos_uintptr_t;
#endif
#if defined(_WIN64)
typedef signed long long int khronos_ssize_t;
typedef unsigned long long int khronos_usize_t;
#else
typedef signed long int khronos_ssize_t;
typedef unsigned long int khronos_usize_t;
#endif
#if KHRONOS_SUPPORT_FLOAT
/*
* Float type
*/
typedef float khronos_float_t;
#endif
#if KHRONOS_SUPPORT_INT64
/* Time types
*
* These types can be used to represent a time interval in nanoseconds or
* an absolute Unadjusted System Time. Unadjusted System Time is the number
* of nanoseconds since some arbitrary system event (e.g. since the last
* time the system booted). The Unadjusted System Time is an unsigned
* 64 bit value that wraps back to 0 every 584 years. Time intervals
* may be either signed or unsigned.
*/
typedef khronos_uint64_t khronos_utime_nanoseconds_t;
typedef khronos_int64_t khronos_stime_nanoseconds_t;
#endif
/*
* Dummy value used to pad enum types to 32 bits.
*/
#ifndef KHRONOS_MAX_ENUM
#define KHRONOS_MAX_ENUM 0x7FFFFFFF
#endif
/*
* Enumerated boolean type
*
* Values other than zero should be considered to be true. Therefore
* comparisons should not be made against KHRONOS_TRUE.
*/
typedef enum {
KHRONOS_FALSE = 0,
KHRONOS_TRUE = 1,
KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
} khronos_boolean_enum_t;
#endif /* __khrplatform_h_ */

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@ -8,6 +8,7 @@
*****************************************************************/ *****************************************************************/
#include<GL/gl.h> #include<GL/gl.h>
#include"GL/glext.h"
#include"GL/wglext.h" #include"GL/wglext.h"
#include"graphics.h" #include"graphics.h"
@ -47,6 +48,26 @@ PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB;
PFNWGLMAKECONTEXTCURRENTARBPROC wglMakeContextCurrentARB; PFNWGLMAKECONTEXTCURRENTARBPROC wglMakeContextCurrentARB;
PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT; PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT;
PFNGLCREATESHADERPROC glCreateShader;
PFNGLCREATEPROGRAMPROC glCreateProgram;
PFNGLATTACHSHADERPROC glAttachShader;
PFNGLCOMPILESHADERPROC glCompileShader;
PFNGLGETSHADERIVPROC glGetShaderiv;
PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog;
PFNGLSHADERSOURCEPROC glShaderSource;
PFNGLLINKPROGRAMPROC glLinkProgram;
PFNGLGETPROGRAMIVPROC glGetProgramiv;
PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog;
PFNGLUSEPROGRAMPROC glUseProgram;
PFNGLGENVERTEXARRAYSPROC glGenVertexArrays;
PFNGLBINDVERTEXARRAYPROC glBindVertexArray;
PFNGLGENBUFFERSPROC glGenBuffers;
PFNGLBINDBUFFERPROC glBindBuffer;
PFNGLBUFFERDATAPROC glBufferData;
PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv;
PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
mg_surface mg_gl_surface_create_for_window(mp_window window) mg_surface mg_gl_surface_create_for_window(mp_window window)
{ {
mg_surface surfaceHandle = mg_surface_nil(); mg_surface surfaceHandle = mg_surface_nil();
@ -111,7 +132,27 @@ mg_surface mg_gl_surface_create_for_window(mp_window window)
wglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB"); wglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB"); wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
wglMakeContextCurrentARB = (PFNWGLMAKECONTEXTCURRENTARBPROC)wglGetProcAddress("wglMakeContextCurrentARB"); wglMakeContextCurrentARB = (PFNWGLMAKECONTEXTCURRENTARBPROC)wglGetProcAddress("wglMakeContextCurrentARB");
wglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC )wglGetProcAddress("wglSwapIntervalEXT"); wglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)wglGetProcAddress("wglSwapIntervalEXT");
glCreateShader = (PFNGLCREATESHADERPROC)wglGetProcAddress("glCreateShader");
glCreateProgram = (PFNGLCREATEPROGRAMPROC)wglGetProcAddress("glCreateProgram");
glAttachShader = (PFNGLATTACHSHADERPROC)wglGetProcAddress("glAttachShader");
glShaderSource = (PFNGLSHADERSOURCEPROC)wglGetProcAddress("glShaderSource");
glCompileShader = (PFNGLCOMPILESHADERPROC)wglGetProcAddress("glCompileShader");
glGetShaderiv = (PFNGLGETSHADERIVPROC)wglGetProcAddress("glGetShaderiv");
glGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC)wglGetProcAddress("glGetShaderInfoLog");
glLinkProgram = (PFNGLLINKPROGRAMPROC)wglGetProcAddress("glLinkProgram");
glGetProgramiv = (PFNGLGETPROGRAMIVPROC)wglGetProcAddress("glGetProgramiv");
glGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC)wglGetProcAddress("glGetProgramInfoLog");
glUseProgram = (PFNGLUSEPROGRAMPROC)wglGetProcAddress("glUseProgram");
glGenVertexArrays = (PFNGLGENVERTEXARRAYSPROC)wglGetProcAddress("glGenVertexArrays");
glBindVertexArray = (PFNGLBINDVERTEXARRAYPROC)wglGetProcAddress("glBindVertexArray");
glGenBuffers = (PFNGLGENBUFFERSPROC)wglGetProcAddress("glGenBuffers");
glBindBuffer = (PFNGLBINDBUFFERPROC)wglGetProcAddress("glBindBuffer");
glBufferData = (PFNGLBUFFERDATAPROC)wglGetProcAddress("glBufferData");
glUniformMatrix4fv = (PFNGLUNIFORMMATRIX4FVPROC)wglGetProcAddress("glUniformMatrix4fv");
glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)wglGetProcAddress("glVertexAttribPointer");
glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)wglGetProcAddress("glEnableVertexAttribArray");
//NOTE(martin): now create the true pixel format and gl context //NOTE(martin): now create the true pixel format and gl context
int pixelFormatAttrs[] = { int pixelFormatAttrs[] = {