/* * Copyright 2008 Corbin Simpson * * 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 * on 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 * THE AUTHOR(S) AND/OR THEIR 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 "r300_screen.h" /* Return the identifier behind whom the brave coders responsible for this * amalgamation of code, sweat, and duct tape, routinely obscure their names. * * ...I should have just put "Corbin Simpson", but I'm not that cool. * * (Or egotistical. Yet.) */ static const char* r300_get_vendor(struct pipe_screen* pscreen) { return "X.Org R300 Project"; } static const char* chip_families[] = { "R300", "R350", "R360", "RV350", "RV370", "RV380", "R420", "R423", "R430", "R480", "R481", "RV410", "RS400", "RC410", "RS480", "RS482", "RS690", "RS740", "RV515", "R520", "RV530", "R580", "RV560", "RV570" }; static const char* r300_get_name(struct pipe_screen* pscreen) { struct r300_screen* r300screen = r300_screen(pscreen); return chip_families[r300screen->caps->family]; } static int r300_get_param(struct pipe_screen* pscreen, int param) { struct r300_screen* r300screen = r300_screen(pscreen); switch (param) { /* XXX cases marked "IN THEORY" are possible on the hardware, * but haven't been implemented yet. */ case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: /* XXX I'm told this goes up to 16 */ return 8; case PIPE_CAP_NPOT_TEXTURES: /* IN THEORY */ return 0; case PIPE_CAP_TWO_SIDED_STENCIL: if (r300screen->is_r500) { return 1; } else { return 0; } return 0; case PIPE_CAP_GLSL: /* IN THEORY */ return 0; case PIPE_CAP_S3TC: /* IN THEORY */ return 0; case PIPE_CAP_ANISOTROPIC_FILTER: /* IN THEORY */ return 0; case PIPE_CAP_POINT_SPRITE: /* IN THEORY */ return 0; case PIPE_CAP_MAX_RENDER_TARGETS: /* XXX 4 eventually */ return 1; case PIPE_CAP_OCCLUSION_QUERY: /* IN THEORY */ return 0; case PIPE_CAP_TEXTURE_SHADOW_MAP: /* IN THEORY */ return 0; case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: if (r300screen->caps->is_r500) { /* 13 == 4096x4096 */ return 13; } else { /* 12 == 2048x2048 */ return 12; } case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: /* So, technically, the limit is the same as above, but some math * shows why this is silly. Assuming RGBA, 4cpp, we can see that * 4096*4096*4096 = 64.0 GiB exactly, so it's not exactly * practical. However, if at some point a game really wants this, * then we can remove this limit. */ if (r300screen->caps->is_r500) { /* 9 == 256x256x256 */ return 9; } else { /* 8 == 128*128*128 */ return 8; } case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: if (r300screen->caps->is_r500) { /* 13 == 4096x4096 */ return 13; } else { /* 12 == 2048x2048 */ return 12; } case PIPE_CAP_TEXTURE_MIRROR_CLAMP: return 1; case PIPE_CAP_TEXTURE_MIRROR_REPEAT: return 1; case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: /* XXX guessing */ return 2; default: debug_printf("r300: Implementation error: Bad param %d\n", param); return 0; } } static float r300_get_paramf(struct pipe_screen* pscreen, int param) { switch (param) { case PIPE_CAP_MAX_LINE_WIDTH: case PIPE_CAP_MAX_LINE_WIDTH_AA: /* XXX this is the biggest thing that will fit in that register. * Perhaps the actual rendering limits are less? */ return 10922.0f; case PIPE_CAP_MAX_POINT_WIDTH: case PIPE_CAP_MAX_POINT_WIDTH_AA: /* XXX this is the biggest thing that will fit in that register. * Perhaps the actual rendering limits are less? */ return 10922.0f; case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: return 16.0f; case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: return 16.0f; default: debug_printf("r300: Implementation error: Bad paramf %d\n", param); return 0.0f; } } /* XXX moar formats */ static boolean check_tex_2d_format(enum pipe_format format) { switch (format) { case PIPE_FORMAT_A8R8G8B8_UNORM: case PIPE_FORMAT_I8_UNORM: return TRUE; default: debug_printf("r300: Warning: Got unknown format: %s, in %s\n", pf_name(format), __FUNCTION__); break; } return FALSE; } /* XXX moar targets */ static boolean r300_is_format_supported(struct pipe_screen* pscreen, enum pipe_format format, enum pipe_texture_target target, unsigned tex_usage, unsigned geom_flags) { switch (target) { case PIPE_TEXTURE_2D: return check_tex_2d_format(format); default: debug_printf("r300: Warning: Got unknown format target: %d\n", format); break; } return FALSE; } static void* r300_surface_map(struct pipe_screen* screen, struct pipe_surface* surface, unsigned flags) { char* map = pipe_buffer_map(screen, surface->buffer, flags); if (!map) { return NULL; } return map + surface->offset; } static void r300_surface_unmap(struct pipe_screen* screen, struct pipe_surface* surface) { pipe_buffer_unmap(screen, surface->buffer); } static void r300_destroy_screen(struct pipe_screen* pscreen) { struct r300_screen* r300screen = r300_screen(pscreen); FREE(r300screen->caps); FREE(r300screen); } struct pipe_screen* r300_create_screen(struct pipe_winsys* winsys, struct r300_winsys* r300_winsys) { struct r300_screen* r300screen = CALLOC_STRUCT(r300_screen); struct r300_capabilities* caps = CALLOC_STRUCT(r300_capabilities); if (!r300screen || !caps) return NULL; caps->pci_id = r300_winsys->pci_id; caps->num_frag_pipes = r300_winsys->gb_pipes; r300_parse_chipset(caps); r300screen->caps = caps; r300screen->screen.winsys = winsys; r300screen->screen.destroy = r300_destroy_screen; r300screen->screen.get_name = r300_get_name; r300screen->screen.get_vendor = r300_get_vendor; r300screen->screen.get_param = r300_get_param; r300screen->screen.get_paramf = r300_get_paramf; r300screen->screen.is_format_supported = r300_is_format_supported; r300screen->screen.surface_map = r300_surface_map; r300screen->screen.surface_unmap = r300_surface_unmap; r300_init_screen_texture_functions(&r300screen->screen); u_simple_screen_init(&r300screen->screen); return &r300screen->screen; }