/************************************************************************** * * Copyright 2003 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 "main/imports.h" /* CALLOC */ #include "i915_context.h" #include "i915_winsys.h" #include "i915_state.h" #include "i915_batch.h" #include "i915_tex_layout.h" #include "i915_reg.h" #include "pipe/draw/draw_context.h" #include "pipe/p_defines.h" #include "pipe/p_winsys.h" #include "pipe/p_util.h" /** * Query format support. * If we find texture and drawable support differs, add a selector * parameter or another function. */ static boolean i915_is_format_supported( struct pipe_context *pipe, uint format ) { #if 0 /* XXX: This is broken -- rewrite if still needed. */ static const unsigned tex_supported[] = { PIPE_FORMAT_U_R8_G8_B8_A8, PIPE_FORMAT_U_A8_R8_G8_B8, PIPE_FORMAT_U_R5_G6_B5, PIPE_FORMAT_U_L8, PIPE_FORMAT_U_A8, PIPE_FORMAT_U_I8, PIPE_FORMAT_U_L8_A8, PIPE_FORMAT_YCBCR, PIPE_FORMAT_YCBCR_REV, PIPE_FORMAT_S8_Z24, }; /* Actually a lot more than this - add later: */ static const unsigned render_supported[] = { PIPE_FORMAT_U_A8_R8_G8_B8, PIPE_FORMAT_U_R5_G6_B5, }; /* */ static const unsigned z_stencil_supported[] = { PIPE_FORMAT_U_Z16, PIPE_FORMAT_U_Z32, PIPE_FORMAT_S8_Z24, }; switch (type) { case PIPE_RENDER_FORMAT: *numFormats = Elements(render_supported); return render_supported; case PIPE_TEX_FORMAT: *numFormats = Elements(tex_supported); return render_supported; case PIPE_Z_STENCIL_FORMAT: *numFormats = Elements(render_supported); return render_supported; default: *numFormats = 0; return NULL; } #else switch( format ) { case PIPE_FORMAT_U_A8_R8_G8_B8: case PIPE_FORMAT_U_R5_G6_B5: case PIPE_FORMAT_S8_Z24: return TRUE; }; return FALSE; #endif } /** * We might want to return max texture levels instead... */ static void i915_max_texture_size(struct pipe_context *pipe, unsigned textureType, unsigned *maxWidth, unsigned *maxHeight, unsigned *maxDepth) { switch (textureType) { case PIPE_TEXTURE_1D: *maxWidth = 2048; break; case PIPE_TEXTURE_2D: *maxWidth = *maxHeight = 2048; break; case PIPE_TEXTURE_3D: *maxWidth = *maxHeight = *maxDepth = 256; break; case PIPE_TEXTURE_CUBE: *maxWidth = *maxHeight = 2048; break; default: assert(0); } } static int i915_get_param(struct pipe_context *pipe, 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 0; default: return 0; } } static void i915_destroy( struct pipe_context *pipe ) { struct i915_context *i915 = i915_context( pipe ); draw_destroy( i915->draw ); free( i915 ); } static void i915_begin_query(struct pipe_context *pipe, struct pipe_query_object *q) { /* should never be called */ assert(0); } static void i915_end_query(struct pipe_context *pipe, struct pipe_query_object *q) { /* should never be called */ assert(0); } static boolean i915_draw_elements( struct pipe_context *pipe, struct pipe_buffer_handle *indexBuffer, unsigned indexSize, unsigned prim, unsigned start, unsigned count) { struct i915_context *i915 = i915_context( pipe ); struct draw_context *draw = i915->draw; unsigned i; if (i915->dirty) i915_update_derived( i915 ); /* * Map vertex buffers */ for (i = 0; i < PIPE_ATTRIB_MAX; i++) { if (i915->vertex_buffer[i].buffer) { void *buf = pipe->winsys->buffer_map(pipe->winsys, i915->vertex_buffer[i].buffer, PIPE_BUFFER_FLAG_READ); draw_set_mapped_vertex_buffer(draw, i, buf); } } /* Map index buffer, if present */ if (indexBuffer) { void *mapped_indexes = pipe->winsys->buffer_map(pipe->winsys, indexBuffer, PIPE_BUFFER_FLAG_READ); draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes); } else { /* no index/element buffer */ draw_set_mapped_element_buffer(draw, 0, NULL); } /* Map feedback buffers if enabled */ if (i915->feedback.enabled) { const uint n = i915->feedback.interleaved ? 1 : i915->feedback.num_attribs; for (i = 0; i < n; i++) { void *ptr = pipe->winsys->buffer_map(pipe->winsys, i915->feedback_buffer[i].buffer, PIPE_BUFFER_FLAG_WRITE); draw_set_mapped_feedback_buffer(draw, i, ptr, i915->feedback_buffer[i].size); } } draw_set_mapped_constant_buffer(draw, i915->current.constants[PIPE_SHADER_VERTEX]); /* draw! */ draw_arrays(i915->draw, prim, start, count); /* * unmap vertex/index buffers */ for (i = 0; i < PIPE_ATTRIB_MAX; i++) { if (i915->vertex_buffer[i].buffer) { pipe->winsys->buffer_unmap(pipe->winsys, i915->vertex_buffer[i].buffer); draw_set_mapped_vertex_buffer(draw, i, NULL); } } if (indexBuffer) { pipe->winsys->buffer_unmap(pipe->winsys, indexBuffer); draw_set_mapped_element_buffer(draw, 0, NULL); } /* Unmap feedback buffers if enabled */ if (i915->feedback.enabled) { const uint n = i915->feedback.interleaved ? 1 : i915->feedback.num_attribs; for (i = 0; i < n; i++) { pipe->winsys->buffer_unmap(pipe->winsys, i915->feedback_buffer[i].buffer); draw_set_mapped_feedback_buffer(draw, i, NULL, 0); } } return TRUE; } static boolean i915_draw_arrays( struct pipe_context *pipe, unsigned prim, unsigned start, unsigned count) { return i915_draw_elements(pipe, NULL, 0, prim, start, count); } struct pipe_context *i915_create( struct pipe_winsys *pipe_winsys, struct i915_winsys *i915_winsys, unsigned pci_id ) { struct i915_context *i915; unsigned is_i945 = 0; switch (pci_id) { case PCI_CHIP_I915_G: case PCI_CHIP_I915_GM: 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: is_i945 = 1; break; default: pipe_winsys->printf(pipe_winsys, "%s: unknown pci id 0x%x, cannot create context\n", __FUNCTION__, pci_id); return NULL; } i915 = CALLOC_STRUCT(i915_context); if (i915 == NULL) return NULL; i915->winsys = i915_winsys; i915->pipe.winsys = pipe_winsys; i915->pipe.destroy = i915_destroy; i915->pipe.is_format_supported = i915_is_format_supported; i915->pipe.max_texture_size = i915_max_texture_size; i915->pipe.get_param = i915_get_param; i915->pipe.clear = i915_clear; i915->pipe.begin_query = i915_begin_query; i915->pipe.end_query = i915_end_query; i915->pipe.draw_arrays = i915_draw_arrays; i915->pipe.draw_elements = i915_draw_elements; /* * Create drawing context and plug our rendering stage into it. */ i915->draw = draw_create(); assert(i915->draw); if (getenv("I915_VBUF")) { draw_set_rasterize_stage(i915->draw, i915_draw_vbuf_stage(i915)); } else { draw_set_rasterize_stage(i915->draw, i915_draw_render_stage(i915)); } i915_init_region_functions(i915); i915_init_surface_functions(i915); i915_init_state_functions(i915); i915_init_flush_functions(i915); i915_init_string_functions(i915); i915->pci_id = pci_id; i915->flags.is_i945 = is_i945; if (i915->flags.is_i945) i915->pipe.mipmap_tree_layout = i945_miptree_layout; else i915->pipe.mipmap_tree_layout = i915_miptree_layout; i915->dirty = ~0; i915->hardware_dirty = ~0; /* Batch stream debugging is a bit hacked up at the moment: */ i915->batch_start = NULL; /* * XXX we could plug GL selection/feedback into the drawing pipeline * by specifying a different setup/render stage. */ return &i915->pipe; }