diff options
Diffstat (limited to 'src/gallium/drivers/i915simple/i915_screen.c')
| -rw-r--r-- | src/gallium/drivers/i915simple/i915_screen.c | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915simple/i915_screen.c b/src/gallium/drivers/i915simple/i915_screen.c new file mode 100644 index 00000000000..e9e40c3f0b2 --- /dev/null +++ b/src/gallium/drivers/i915simple/i915_screen.c @@ -0,0 +1,283 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#include "util/u_memory.h" +#include "pipe/p_winsys.h" +#include "util/u_string.h" + +#include "i915_reg.h" +#include "i915_context.h" +#include "i915_screen.h" +#include "i915_texture.h" + + +static const char * +i915_get_vendor( struct pipe_screen *pscreen ) +{ + return "Tungsten Graphics, Inc."; +} + + +static const char * +i915_get_name( struct pipe_screen *pscreen ) +{ + static char buffer[128]; + const char *chipset; + + switch (i915_screen(pscreen)->pci_id) { + case PCI_CHIP_I915_G: + chipset = "915G"; + break; + case PCI_CHIP_I915_GM: + chipset = "915GM"; + break; + case PCI_CHIP_I945_G: + chipset = "945G"; + break; + case PCI_CHIP_I945_GM: + chipset = "945GM"; + break; + case PCI_CHIP_I945_GME: + chipset = "945GME"; + break; + case PCI_CHIP_G33_G: + chipset = "G33"; + break; + case PCI_CHIP_Q35_G: + chipset = "Q35"; + break; + case PCI_CHIP_Q33_G: + chipset = "Q33"; + break; + default: + chipset = "unknown"; + break; + } + + util_snprintf(buffer, sizeof(buffer), "i915 (chipset: %s)", chipset); + return buffer; +} + + +static int +i915_get_param(struct pipe_screen *screen, int param) +{ + switch (param) { + case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: + return 8; + case PIPE_CAP_NPOT_TEXTURES: + return 1; + case PIPE_CAP_TWO_SIDED_STENCIL: + return 1; + case PIPE_CAP_GLSL: + return 0; + case PIPE_CAP_S3TC: + return 0; + case PIPE_CAP_ANISOTROPIC_FILTER: + return 0; + case PIPE_CAP_POINT_SPRITE: + return 0; + case PIPE_CAP_MAX_RENDER_TARGETS: + return 1; + case PIPE_CAP_OCCLUSION_QUERY: + return 0; + case PIPE_CAP_TEXTURE_SHADOW_MAP: + return 1; + case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: + return 11; /* max 1024x1024 */ + case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: + return 8; /* max 128x128x128 */ + case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: + return 11; /* max 1024x1024 */ + default: + return 0; + } +} + + +static float +i915_get_paramf(struct pipe_screen *screen, int param) +{ + switch (param) { + case PIPE_CAP_MAX_LINE_WIDTH: + /* fall-through */ + case PIPE_CAP_MAX_LINE_WIDTH_AA: + return 7.5; + + case PIPE_CAP_MAX_POINT_WIDTH: + /* fall-through */ + case PIPE_CAP_MAX_POINT_WIDTH_AA: + return 255.0; + + case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: + return 4.0; + + case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: + return 16.0; + + default: + return 0; + } +} + + +static boolean +i915_is_format_supported( struct pipe_screen *screen, + enum pipe_format format, + enum pipe_texture_target target, + unsigned tex_usage, + unsigned geom_flags ) +{ + static const enum pipe_format tex_supported[] = { + PIPE_FORMAT_R8G8B8A8_UNORM, + PIPE_FORMAT_A8R8G8B8_UNORM, + PIPE_FORMAT_R5G6B5_UNORM, + PIPE_FORMAT_L8_UNORM, + PIPE_FORMAT_A8_UNORM, + PIPE_FORMAT_I8_UNORM, + PIPE_FORMAT_A8L8_UNORM, + PIPE_FORMAT_YCBCR, + PIPE_FORMAT_YCBCR_REV, + PIPE_FORMAT_S8Z24_UNORM, + PIPE_FORMAT_NONE /* list terminator */ + }; + static const enum pipe_format surface_supported[] = { + PIPE_FORMAT_A8R8G8B8_UNORM, + PIPE_FORMAT_R5G6B5_UNORM, + PIPE_FORMAT_S8Z24_UNORM, + /*PIPE_FORMAT_R16G16B16A16_SNORM,*/ + PIPE_FORMAT_NONE /* list terminator */ + }; + const enum pipe_format *list; + uint i; + + if(tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) + list = surface_supported; + else + list = tex_supported; + + for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) { + if (list[i] == format) + return TRUE; + } + + return FALSE; +} + + +static void +i915_destroy_screen( struct pipe_screen *screen ) +{ + struct pipe_winsys *winsys = screen->winsys; + + if(winsys->destroy) + winsys->destroy(winsys); + + FREE(screen); +} + + +static void * +i915_surface_map( struct pipe_screen *screen, + struct pipe_surface *surface, + unsigned flags ) +{ + char *map = screen->winsys->buffer_map( screen->winsys, surface->buffer, flags ); + if (map == NULL) + return NULL; + + if (surface->texture && + (flags & PIPE_BUFFER_USAGE_CPU_WRITE)) + { + /* Do something to notify contexts of a texture change. + */ + /* i915_screen(screen)->timestamp++; */ + } + + return map + surface->offset; +} + +static void +i915_surface_unmap(struct pipe_screen *screen, + struct pipe_surface *surface) +{ + screen->winsys->buffer_unmap( screen->winsys, surface->buffer ); +} + + + +/** + * Create a new i915_screen object + */ +struct pipe_screen * +i915_create_screen(struct pipe_winsys *winsys, uint pci_id) +{ + struct i915_screen *i915screen = CALLOC_STRUCT(i915_screen); + + if (!i915screen) + return NULL; + + switch (pci_id) { + case PCI_CHIP_I915_G: + case PCI_CHIP_I915_GM: + i915screen->is_i945 = FALSE; + break; + + case PCI_CHIP_I945_G: + case PCI_CHIP_I945_GM: + case PCI_CHIP_I945_GME: + case PCI_CHIP_G33_G: + case PCI_CHIP_Q33_G: + case PCI_CHIP_Q35_G: + i915screen->is_i945 = TRUE; + break; + + default: + debug_printf("%s: unknown pci id 0x%x, cannot create screen\n", + __FUNCTION__, pci_id); + return NULL; + } + + i915screen->pci_id = pci_id; + + i915screen->screen.winsys = winsys; + + i915screen->screen.destroy = i915_destroy_screen; + + i915screen->screen.get_name = i915_get_name; + i915screen->screen.get_vendor = i915_get_vendor; + i915screen->screen.get_param = i915_get_param; + i915screen->screen.get_paramf = i915_get_paramf; + i915screen->screen.is_format_supported = i915_is_format_supported; + i915screen->screen.surface_map = i915_surface_map; + i915screen->screen.surface_unmap = i915_surface_unmap; + + i915_init_screen_texture_functions(&i915screen->screen); + + return &i915screen->screen; +} |