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Merge branch 'refactor_nehe08' into 'master'

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refactor nehe08 slightly

See merge request simulant/GLdc!94
This commit is contained in:
Luke Benstead 2022-02-01 09:00:46 +00:00
commit 774a956012
1 changed files with 106 additions and 99 deletions
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109
samples/nehe08/main.c
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@ -39,6 +39,9 @@ static GLfloat yrot; /* Y Rotation */
static GLfloat xspeed; /* X Rotation Speed */ static GLfloat xspeed; /* X Rotation Speed */
static GLfloat yspeed; /* Y Rotation Speed */ static GLfloat yspeed; /* Y Rotation Speed */
static GLfloat z = -5.0f; /* Depth Into The Screen */ static GLfloat z = -5.0f; /* Depth Into The Screen */
GLboolean xp = GL_FALSE;
GLboolean yp = GL_FALSE;
GLboolean blend = GL_FALSE;
static GLuint filter; /* Which Filter To Use */ static GLuint filter; /* Which Filter To Use */
static GLuint texture[2]; /* Storage For Two Textures */ static GLuint texture[2]; /* Storage For Two Textures */
@ -46,7 +49,40 @@ static GLuint texture[2]; /* Storage For Two Textures */
/* Load a PVR texture - located in pvr-texture.c */ /* Load a PVR texture - located in pvr-texture.c */
extern GLuint glTextureLoadPVR(char *fname, unsigned char isMipMapped, unsigned char glMipMap); extern GLuint glTextureLoadPVR(char *fname, unsigned char isMipMapped, unsigned char glMipMap);
void draw_gl(void) { /* A general OpenGL initialization function. Sets all of the initial parameters. */
void InitGL(int Width, int Height) // We call this right after our OpenGL window is created.
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0f, (GLfloat)Width/(GLfloat)Height, 0.1f, 100.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glEnable(GL_TEXTURE_2D);
glShadeModel(GL_SMOOTH);
glClearColor(0.0f, 0.0f, 0.0f, 0.5f);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glColor4f(1.0f, 1.0f, 1.0f, 0.5);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
/* Enable Lighting and GL_LIGHT0 */
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
/* Set up the textures */
texture[0] = glTextureLoadPVR(IMG_PATH, 0, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
texture[1] = glTextureLoadPVR(IMG_PATH, 0, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
void DrawGLScene(void) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity(); glLoadIdentity();
glTranslatef(0.0f, 0.0f, z); glTranslatef(0.0f, 0.0f, z);
@ -121,66 +157,27 @@ void draw_gl(void) {
xrot += xspeed; xrot += xspeed;
yrot += yspeed; yrot += yspeed;
/* Finish the frame */
glKosSwapBuffers();
} }
int main(int argc, char **argv) { int ReadController(void) {
#ifdef __DREAMCAST__ #ifdef __DREAMCAST__
maple_device_t *cont; maple_device_t *cont;
cont_state_t *state; cont_state_t *state;
#endif
GLboolean xp = GL_FALSE;
GLboolean yp = GL_FALSE;
GLboolean blend = GL_FALSE;
printf("nehe08 beginning\n");
/* Get basic stuff initialized */
glKosInit();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0f, 640.0f / 480.0f, 0.1f, 100.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glEnable(GL_TEXTURE_2D);
glShadeModel(GL_SMOOTH);
glClearColor(0.0f, 0.0f, 0.0f, 0.5f);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glColor4f(1.0f, 1.0f, 1.0f, 0.5);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
/* Enable Lighting and GL_LIGHT0 */
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
/* Set up the textures */
texture[0] = glTextureLoadPVR(IMG_PATH, 0, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
texture[1] = glTextureLoadPVR(IMG_PATH, 0, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
while(1) {
#ifdef __DREAMCAST__
cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER); cont = maple_enum_type(0, MAPLE_FUNC_CONTROLLER);
/* Check key status */ /* Check key status */
state = (cont_state_t *)maple_dev_status(cont); state = (cont_state_t *)maple_dev_status(cont);
if(!state) { if(!state) {
printf("Error reading controller\n"); printf("Error reading controller\n");
break; return 0;
} }
if(state->buttons & CONT_START) if(state->buttons & CONT_START)
break; return 0;
if(state->buttons & CONT_A) if(state->buttons & CONT_A)
z -= 0.02f; z -= 0.02f;
@ -230,13 +227,23 @@ int main(int argc, char **argv) {
glDepthMask(1); glDepthMask(1);
} }
/* Draw the GL "scene" */ return 1;
draw_gl(); }
/* Finish the frame */ int main(int argc, char **argv) {
glKosSwapBuffers(); printf("nehe08 beginning\n");
/* Get basic stuff initialized */
glKosInit();
InitGL(640, 480);
while(1) {
if (!ReadController())
break;
DrawGLScene();
} }
return 0; return 0;
} }