ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

wined3d: Add proper PS2.0 detection for older cards with GLSL support.

This commit is contained in:
Roderick Colenbrander 2007-10-27 22:59:47 +02:00 committed by Alexandre Julliard
parent 465962dae6
commit 50ed6f36d2
1 changed files with 12 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
dlls/wined3d/directx.c
View File

@ -2386,9 +2386,18 @@ static HRESULT WINAPI IWineD3DImpl_GetDeviceCaps(IWineD3D *iface, UINT Adapter,
*pCaps->MaxVertexShaderConst = GL_LIMITS(vshader_constantsF);
if (ps_selected_mode == SHADER_GLSL) {
/* See the comment about VS2.0/VS3.0 detection as we do the same here but then based on NV_fragment_program
in case of GeforceFX cards. */
if(GLINFO_LOCATION.ps_nv_version == PS_VERSION_20)
/* Older DX9-class videocards (GeforceFX / Radeon >9500/X*00) only support pixel shader 2.0/2.0a/2.0b.
* In OpenGL the extensions related to GLSL abstract lowlevel GL info away which is needed
* to distinguish between 2.0 and 3.0 (and 2.0a/2.0b). In case of Nvidia we use their fragment
* program extensions. On other hardware including ATI GL_ARB_fragment_program offers the info
* in max native instructions. Intel and others also offer the info in this extension but they
* don't support GLSL (at least on Windows).
*
* PS2.0 requires at least 96 instructions, 2.0a/2.0b go upto 512. Assume that if the number
* of instructions is 512 or less we have to do with ps2.0 hardware.
* NOTE: ps3.0 hardware requires 512 or more instructions but ati and nvidia offer 'enough' (1024 vs 4096) on their most basic ps3.0 hardware.
*/
if((GLINFO_LOCATION.ps_nv_version == PS_VERSION_20) || (GLINFO_LOCATION.ps_arb_max_instructions <= 512))
*pCaps->PixelShaderVersion = WINED3DPS_VERSION(2,0);
else
*pCaps->PixelShaderVersion = WINED3DPS_VERSION(3,0);