mirror of
git://source.winehq.org/git/wine.git
synced 2024-10-31 12:19:49 +00:00
Implement vertex and pixel fog.
Fix fog color initialization.
This commit is contained in:
parent
a29960e702
commit
a49cc9e4e1
2 changed files with 58 additions and 20 deletions
|
@ -673,6 +673,22 @@ static void draw_primitive_start_GL(D3DPRIMITIVETYPE d3dpt)
|
|||
}
|
||||
}
|
||||
|
||||
/* This function calculate the Z coordinate from Zproj */
|
||||
static float ZfromZproj(IDirect3DDeviceImpl *This, D3DVALUE Zproj)
|
||||
{
|
||||
float a,b,c,d;
|
||||
/* Assume that X = Y = 0 and W = 1 */
|
||||
a = This->proj_mat->_33;
|
||||
b = This->proj_mat->_34;
|
||||
c = This->proj_mat->_43;
|
||||
d = This->proj_mat->_44;
|
||||
/* We have in homogenous coordinates Z' = a * Z + c and W' = b * Z + d
|
||||
* So in non homogenous coordinates we have Zproj = (a * Z + b) / (c * Z + d)
|
||||
* And finally Z = (d * Zproj - c) / (a - b * Zproj)
|
||||
*/
|
||||
return (d*Zproj - c) / (a - b*Zproj);
|
||||
}
|
||||
|
||||
static void draw_primitive_handle_GL_state(IDirect3DDeviceImpl *This,
|
||||
BOOLEAN vertex_transformed,
|
||||
BOOLEAN vertex_lit) {
|
||||
|
@ -688,17 +704,34 @@ static void draw_primitive_handle_GL_state(IDirect3DDeviceImpl *This,
|
|||
This->world_mat, This->view_mat, This->proj_mat);
|
||||
glThis->transform_state = GL_TRANSFORM_NORMAL;
|
||||
|
||||
if (This->state_block.render_state[D3DRENDERSTATE_FOGENABLE - 1] == TRUE)
|
||||
glEnable(GL_FOG);
|
||||
} else if ((vertex_transformed == TRUE) &&
|
||||
(glThis->transform_state != GL_TRANSFORM_ORTHO)) {
|
||||
/* Set our orthographic projection */
|
||||
glThis->transform_state = GL_TRANSFORM_ORTHO;
|
||||
d3ddevice_set_ortho(This);
|
||||
|
||||
/* Remove also fogging... */
|
||||
glDisable(GL_FOG);
|
||||
}
|
||||
if (This->state_block.render_state[D3DRENDERSTATE_FOGENABLE - 1] == TRUE) {glHint(GL_FOG_HINT,GL_NICEST);
|
||||
if (This->state_block.render_state[D3DRENDERSTATE_FOGTABLEMODE - 1] != D3DFOG_NONE) {
|
||||
switch (This->state_block.render_state[D3DRENDERSTATE_FOGTABLEMODE - 1]) {
|
||||
case D3DFOG_LINEAR: glFogi(GL_FOG_MODE,GL_LINEAR); break;
|
||||
case D3DFOG_EXP: glFogi(GL_FOG_MODE,GL_EXP); break;
|
||||
case D3DFOG_EXP2: glFogi(GL_FOG_MODE,GL_EXP2); break;
|
||||
}
|
||||
glFogf(GL_FOG_START,ZfromZproj(This,*(float*)&This->state_block.render_state[D3DRENDERSTATE_FOGSTART - 1]));
|
||||
glFogf(GL_FOG_END,ZfromZproj(This,*(float*)&This->state_block.render_state[D3DRENDERSTATE_FOGEND - 1]));
|
||||
glEnable(GL_FOG);
|
||||
} else if ( (This->state_block.render_state[D3DRENDERSTATE_FOGVERTEXMODE - 1] != D3DFOG_NONE) &&
|
||||
(vertex_lit == FALSE) && (vertex_transformed == FALSE) ) {
|
||||
/* D3DFOG_EXP and D3DFOG_EXP2 are treated as D3DFOG_LINEAR */
|
||||
glFogi(GL_FOG_MODE,GL_LINEAR);
|
||||
glFogf(GL_FOG_START,*(float*)&This->state_block.render_state[D3DRENDERSTATE_FOGSTART - 1]);
|
||||
glFogf(GL_FOG_END,*(float*)&This->state_block.render_state[D3DRENDERSTATE_FOGEND - 1]);
|
||||
glEnable(GL_FOG);
|
||||
} else
|
||||
glDisable(GL_FOG);
|
||||
}
|
||||
else
|
||||
glDisable(GL_FOG);
|
||||
|
||||
/* Handle the 'no-normal' case */
|
||||
if (vertex_lit == TRUE)
|
||||
|
|
|
@ -83,7 +83,6 @@ GLenum convert_D3D_blendop_to_GL(D3DBLEND dwRenderState)
|
|||
void set_render_state(IDirect3DDeviceImpl* This,
|
||||
D3DRENDERSTATETYPE dwRenderStateType, STATEBLOCK *lpStateBlock)
|
||||
{
|
||||
IDirect3DDeviceGLImpl *glThis = (IDirect3DDeviceGLImpl *) This;
|
||||
DWORD dwRenderState = lpStateBlock->render_state[dwRenderStateType - 1];
|
||||
|
||||
if (TRACE_ON(ddraw))
|
||||
|
@ -304,12 +303,7 @@ void set_render_state(IDirect3DDeviceImpl* This,
|
|||
break;
|
||||
|
||||
case D3DRENDERSTATE_FOGENABLE: /* 28 */
|
||||
if ((dwRenderState == TRUE) &&
|
||||
(glThis->transform_state != GL_TRANSFORM_ORTHO)) {
|
||||
glEnable(GL_FOG);
|
||||
} else {
|
||||
glDisable(GL_FOG);
|
||||
}
|
||||
/* Nothing to do here. Only the storage matters :-) */
|
||||
break;
|
||||
|
||||
case D3DRENDERSTATE_SPECULARENABLE: /* 29 */
|
||||
|
@ -320,7 +314,7 @@ void set_render_state(IDirect3DDeviceImpl* This,
|
|||
case D3DRENDERSTATE_SUBPIXEL: /* 31 */
|
||||
case D3DRENDERSTATE_SUBPIXELX: /* 32 */
|
||||
/* We do not support this anyway, so why protest :-) */
|
||||
break;
|
||||
break;
|
||||
|
||||
case D3DRENDERSTATE_STIPPLEDALPHA: /* 33 */
|
||||
if (dwRenderState)
|
||||
|
@ -328,15 +322,26 @@ void set_render_state(IDirect3DDeviceImpl* This,
|
|||
break;
|
||||
|
||||
case D3DRENDERSTATE_FOGCOLOR: { /* 34 */
|
||||
GLint color[4];
|
||||
color[0] = (dwRenderState >> 16) & 0xFF;
|
||||
color[1] = (dwRenderState >> 8) & 0xFF;
|
||||
color[2] = (dwRenderState >> 0) & 0xFF;
|
||||
color[3] = (dwRenderState >> 24) & 0xFF;
|
||||
glFogiv(GL_FOG_COLOR, color);
|
||||
GLfloat color[4];
|
||||
color[0] = ((dwRenderState >> 16) & 0xFF)/255.0f;
|
||||
color[1] = ((dwRenderState >> 8) & 0xFF)/255.0f;
|
||||
color[2] = ((dwRenderState >> 0) & 0xFF)/255.0f;
|
||||
color[3] = ((dwRenderState >> 24) & 0xFF)/255.0f;
|
||||
glFogfv(GL_FOG_COLOR,color);
|
||||
/* Note: glFogiv does not seem to work */
|
||||
} break;
|
||||
|
||||
|
||||
case D3DRENDERSTATE_FOGTABLEMODE: /* 35 */
|
||||
case D3DRENDERSTATE_FOGVERTEXMODE: /* 140 */
|
||||
case D3DRENDERSTATE_FOGSTART: /* 36 */
|
||||
case D3DRENDERSTATE_FOGEND: /* 37 */
|
||||
/* Nothing to do here. Only the storage matters :-) */
|
||||
break;
|
||||
|
||||
case D3DRENDERSTATE_FOGDENSITY: /* 38 */
|
||||
glFogi(GL_FOG_DENSITY,*(float*)&dwRenderState);
|
||||
break;
|
||||
|
||||
case D3DRENDERSTATE_COLORKEYENABLE: /* 41 */
|
||||
/* This needs to be fixed. */
|
||||
if (dwRenderState)
|
||||
|
|
Loading…
Reference in a new issue