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Add video memory determination by allocating 1MB textures until failure.

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This commit is contained in:
aignacio_sf 2007-04-03 23:24:53 +00:00
parent 9b575fbe58
commit 4028f483d4
1 changed files with 63 additions and 1 deletions
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64
panda/src/windisplay/winDetectDx.h
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@ -97,6 +97,7 @@ static int get_display_information (DisplaySearchParameters &display_search_para
int maximum_bits_per_pixel;
UINT texture_memory;
UINT video_memory;
int window_width;
int window_height;
@ -122,6 +123,7 @@ static int get_display_information (DisplaySearchParameters &display_search_para
maximum_bits_per_pixel = display_search_parameters._maximum_bits_per_pixel;
shader_model = GraphicsStateGuardian::SM_00;
video_memory = 0;
texture_memory = 0;
state = DisplayInformation::DS_unknown;
@ -386,8 +388,67 @@ static int get_display_information (DisplaySearchParameters &display_search_para
result = direct_3d -> CreateDevice (adapter, device_type, window_handle, behavior_flags, &present_parameters, &direct_3d_device);
if (result == D3D_OK) {
texture_memory = direct_3d_device -> GetAvailableTextureMem ( );
// allocate 512x512 32-bit textures (1MB size) until we run out or hit the limit
#define MAXIMUM_TEXTURES (2048 - 1)
int total_textures;
HRESULT texture_result;
#if DX8
IDirect3DTexture8 *texture_array [MAXIMUM_TEXTURES];
#else
IDirect3DTexture9 *texture_array [MAXIMUM_TEXTURES];
#endif
total_textures = 0;
while (total_textures < MAXIMUM_TEXTURES) {
#if DX8
texture_result = direct_3d_device -> CreateTexture (
512,
512,
1,
D3DUSAGE_RENDERTARGET,
D3DFMT_A8R8G8B8,
D3DPOOL_DEFAULT,
&texture_array [total_textures]);
#else
texture_result = direct_3d_device -> CreateTexture (
512,
512,
1,
D3DUSAGE_RENDERTARGET,
D3DFMT_A8R8G8B8,
D3DPOOL_DEFAULT,
&texture_array [total_textures],
NULL);
#endif
if (texture_result == D3D_OK) {
total_textures++;
}
else {
if (texture_result == D3DERR_OUTOFVIDEOMEMORY) {
if (debug) {
printf ("D3DERR_OUTOFVIDEOMEMORY \n");
}
}
break;
}
}
// free all allocated textures
int index;
for (index = 0; index < total_textures; index++) {
texture_array [index] -> Release ( );
}
video_memory = (total_textures * 1024 * 1024);
if (debug) {
printf ("video_memory = %d \n", video_memory);
}
texture_memory = direct_3d_device -> GetAvailableTextureMem ( );
if (debug) {
printf ("texture_memory = %d \n", texture_memory);
}
@ -440,6 +501,7 @@ static int get_display_information (DisplaySearchParameters &display_search_para
display_information -> _total_display_modes = total_display_modes;
display_information -> _display_mode_array = display_mode_array;
display_information -> _shader_model = shader_model;
display_information -> _video_memory = video_memory;
display_information -> _texture_memory = texture_memory;
}