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Stereo 3D modes (gl1_stereo) allowed in GLES1

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Availability of each mode depends on GPU support
This commit is contained in:
Jaime Moreira 2024-09-20 18:29:21 -03:00
parent 676e05ad1f
commit e21479cbd2
1 changed files with 41 additions and 30 deletions
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71
src/client/refresh/gl1/gl1_main.c
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@ -926,7 +926,6 @@ R_SetGL2D(void)
static void
R_RenderView(refdef_t *fd)
{
#ifndef YQ2_GL1_GLES
if ((gl_state.stereo_mode != STEREO_MODE_NONE) && gl_state.camera_separation) {
qboolean drawing_left_eye = gl_state.camera_separation < 0;
@ -976,6 +975,13 @@ R_RenderView(refdef_t *fd)
qboolean flip_eyes = true;
int client_x, client_y;
GLshort screen[] = {
0, 0,
(GLshort)vid.width, 0,
(GLshort)vid.width, (GLshort)vid.height,
0, (GLshort)vid.height
};
//GLimp_GetClientAreaOffset(&client_x, &client_y);
client_x = 0;
client_y = 0;
@ -983,47 +989,53 @@ R_RenderView(refdef_t *fd)
R_SetGL2D();
glEnable(GL_STENCIL_TEST);
glStencilMask(GL_TRUE);
glStencilMask(1);
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glStencilOp(GL_REPLACE, GL_KEEP, GL_KEEP);
glStencilFunc(GL_NEVER, 0, 1);
glBegin(GL_QUADS);
{
glVertex2i(0, 0);
glVertex2i(vid.width, 0);
glVertex2i(vid.width, vid.height);
glVertex2i(0, vid.height);
}
glEnd();
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_SHORT, 0, screen);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDisableClientState(GL_VERTEX_ARRAY);
glStencilOp(GL_INVERT, GL_KEEP, GL_KEEP);
glStencilFunc(GL_NEVER, 1, 1);
glBegin(GL_LINES);
if (gl_state.stereo_mode == STEREO_MODE_ROW_INTERLEAVED || gl_state.stereo_mode == STEREO_MODE_PIXEL_INTERLEAVED)
{
if (gl_state.stereo_mode == STEREO_MODE_ROW_INTERLEAVED || gl_state.stereo_mode == STEREO_MODE_PIXEL_INTERLEAVED) {
int y;
for (y = 0; y <= vid.height; y += 2) {
glVertex2f(0, y - 0.5f);
glVertex2f(vid.width, y - 0.5f);
}
flip_eyes ^= (client_y & 1);
}
if (gl_state.stereo_mode == STEREO_MODE_COLUMN_INTERLEAVED || gl_state.stereo_mode == STEREO_MODE_PIXEL_INTERLEAVED) {
int x;
for (x = 0; x <= vid.width; x += 2) {
glVertex2f(x - 0.5f, 0);
glVertex2f(x - 0.5f, vid.height);
}
flip_eyes ^= (client_x & 1);
for (int y = 0; y <= vid.height; y += 2)
{
gl_buf.vtx[gl_buf.vt ] = 0;
gl_buf.vtx[gl_buf.vt + 1] = y - 0.5f;
gl_buf.vtx[gl_buf.vt + 2] = vid.width;
gl_buf.vtx[gl_buf.vt + 3] = y - 0.5f;
gl_buf.vt += 4;
}
flip_eyes ^= (client_y & 1);
}
glEnd();
glStencilMask(GL_FALSE);
if (gl_state.stereo_mode == STEREO_MODE_COLUMN_INTERLEAVED || gl_state.stereo_mode == STEREO_MODE_PIXEL_INTERLEAVED)
{
for (int x = 0; x <= vid.width; x += 2)
{
gl_buf.vtx[gl_buf.vt ] = x - 0.5f;
gl_buf.vtx[gl_buf.vt + 1] = 0;
gl_buf.vtx[gl_buf.vt + 2] = x - 0.5f;
gl_buf.vtx[gl_buf.vt + 3] = vid.height;
gl_buf.vt += 4;
}
flip_eyes ^= (client_x & 1);
}
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, gl_buf.vtx);
glDrawArrays(GL_LINES, 0, gl_buf.vt / 2);
glDisableClientState(GL_VERTEX_ARRAY);
gl_buf.vt = 0;
glStencilMask(0);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glStencilFunc(GL_EQUAL, drawing_left_eye ^ flip_eyes, 1);
@ -1034,7 +1046,6 @@ R_RenderView(refdef_t *fd)
break;
}
}
#endif
if (r_norefresh->value)
{