+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2007 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.
- *
- **************************************************************************/
-
-/**
- * \file
- * Build post-transformation, post-clipping vertex buffers and element
- * lists by hooking into the end of the primitive pipeline and
- * manipulating the vertex_id field in the vertex headers.
- *
- * XXX: work in progress
- *
- * \author José Fonseca <jrfonseca@tungstengraphics.com>
- * \author Keith Whitwell <keith@tungstengraphics.com>
- */
-
-
-#include "draw/draw_context.h"
-#include "draw/draw_vbuf.h"
-#include "util/u_debug.h"
-#include "pipe/p_inlines.h"
-#include "util/u_math.h"
-#include "util/u_memory.h"
-#include "util/u_fifo.h"
-
-#include "i915_context.h"
-#include "i915_reg.h"
-#include "i915_batch.h"
-#include "i915_state.h"
-
-
-/**
- * Primitive renderer for i915.
- */
-struct i915_vbuf_render {
- struct vbuf_render base;
-
- struct i915_context *i915;
-
- /** Vertex size in bytes */
- size_t vertex_size;
-
- /** Software primitive */
- unsigned prim;
-
- /** Hardware primitive */
- unsigned hwprim;
-
- /** Genereate a vertex list */
- unsigned fallback;
-
- /* Stuff for the vbo */
- struct intel_buffer *vbo;
- size_t vbo_size;
- size_t vbo_offset;
- void *vbo_ptr;
- size_t vbo_max_used;
-
- /* stuff for the pool */
- struct util_fifo *pool_fifo;
- unsigned pool_used;
- unsigned pool_buffer_size;
- boolean pool_not_used;
-};
-
-
-/**
- * Basically a cast wrapper.
- */
-static INLINE struct i915_vbuf_render *
-i915_vbuf_render(struct vbuf_render *render)
-{
- assert(render);
- return (struct i915_vbuf_render *)render;
-}
-
-static const struct vertex_info *
-i915_vbuf_render_get_vertex_info(struct vbuf_render *render)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- struct i915_context *i915 = i915_render->i915;
-
- if (i915->dirty) {
- /* make sure we have up to date vertex layout */
- i915_update_derived(i915);
- }
-
- return &i915->current.vertex_info;
-}
-
-static boolean
-i915_vbuf_render_reserve(struct i915_vbuf_render *i915_render, size_t size)
-{
- struct i915_context *i915 = i915_render->i915;
-
- if (i915_render->vbo_size < size + i915_render->vbo_offset)
- return FALSE;
-
- if (i915->vbo_flushed)
- return FALSE;
-
- return TRUE;
-}
-
-static void
-i915_vbuf_render_new_buf(struct i915_vbuf_render *i915_render, size_t size)
-{
- struct i915_context *i915 = i915_render->i915;
- struct intel_winsys *iws = i915->iws;
-
- if (i915_render->vbo) {
- if (i915_render->pool_not_used)
- iws->buffer_destroy(iws, i915_render->vbo);
- else
- u_fifo_add(i915_render->pool_fifo, i915_render->vbo);
- i915_render->vbo = NULL;
- }
-
- i915->vbo_flushed = 0;
-
- i915_render->vbo_size = MAX2(size, i915_render->pool_buffer_size);
- i915_render->vbo_offset = 0;
-
- if (i915_render->vbo_size != i915_render->pool_buffer_size) {
- i915_render->pool_not_used = TRUE;
- i915_render->vbo = iws->buffer_create(iws, i915_render->vbo_size, 64,
- INTEL_NEW_VERTEX);
- } else {
- i915_render->pool_not_used = FALSE;
-
- if (i915_render->pool_used >= 2) {
- FLUSH_BATCH(NULL);
- i915->vbo_flushed = 0;
- i915_render->pool_used = 0;
- }
- u_fifo_pop(i915_render->pool_fifo, (void**)&i915_render->vbo);
- }
-}
-
-static boolean
-i915_vbuf_render_allocate_vertices(struct vbuf_render *render,
- ushort vertex_size,
- ushort nr_vertices)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- struct i915_context *i915 = i915_render->i915;
- size_t size = (size_t)vertex_size * (size_t)nr_vertices;
-
- /* FIXME: handle failure */
- assert(!i915->vbo);
-
- if (!i915_vbuf_render_reserve(i915_render, size)) {
-
- if (i915->vbo_flushed)
- i915_render->pool_used = 0;
-
- i915_vbuf_render_new_buf(i915_render, size);
- }
-
- i915_render->vertex_size = vertex_size;
- i915->vbo = i915_render->vbo;
- i915->vbo_offset = i915_render->vbo_offset;
- i915->dirty |= I915_NEW_VBO;
-
- if (!i915_render->vbo)
- return FALSE;
- return TRUE;
-}
-
-static void *
-i915_vbuf_render_map_vertices(struct vbuf_render *render)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- struct i915_context *i915 = i915_render->i915;
- struct intel_winsys *iws = i915->iws;
-
- if (i915->vbo_flushed)
- debug_printf("%s bad vbo flush occured stalling on hw\n", __FUNCTION__);
-
- i915_render->vbo_ptr = iws->buffer_map(iws, i915_render->vbo, TRUE);
-
- return (unsigned char *)i915_render->vbo_ptr + i915->vbo_offset;
-}
-
-static void
-i915_vbuf_render_unmap_vertices(struct vbuf_render *render,
- ushort min_index,
- ushort max_index)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- struct i915_context *i915 = i915_render->i915;
- struct intel_winsys *iws = i915->iws;
-
- i915_render->vbo_max_used = MAX2(i915_render->vbo_max_used, i915_render->vertex_size * (max_index + 1));
- iws->buffer_unmap(iws, i915_render->vbo);
-}
-
-static boolean
-i915_vbuf_render_set_primitive(struct vbuf_render *render,
- unsigned prim)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- i915_render->prim = prim;
-
- switch(prim) {
- case PIPE_PRIM_POINTS:
- i915_render->hwprim = PRIM3D_POINTLIST;
- i915_render->fallback = 0;
- return TRUE;
- case PIPE_PRIM_LINES:
- i915_render->hwprim = PRIM3D_LINELIST;
- i915_render->fallback = 0;
- return TRUE;
- case PIPE_PRIM_LINE_LOOP:
- i915_render->hwprim = PRIM3D_LINELIST;
- i915_render->fallback = PIPE_PRIM_LINE_LOOP;
- return TRUE;
- case PIPE_PRIM_LINE_STRIP:
- i915_render->hwprim = PRIM3D_LINESTRIP;
- i915_render->fallback = 0;
- return TRUE;
- case PIPE_PRIM_TRIANGLES:
- i915_render->hwprim = PRIM3D_TRILIST;
- i915_render->fallback = 0;
- return TRUE;
- case PIPE_PRIM_TRIANGLE_STRIP:
- i915_render->hwprim = PRIM3D_TRISTRIP;
- i915_render->fallback = 0;
- return TRUE;
- case PIPE_PRIM_TRIANGLE_FAN:
- i915_render->hwprim = PRIM3D_TRIFAN;
- i915_render->fallback = 0;
- return TRUE;
- case PIPE_PRIM_QUADS:
- i915_render->hwprim = PRIM3D_TRILIST;
- i915_render->fallback = PIPE_PRIM_QUADS;
- return TRUE;
- case PIPE_PRIM_QUAD_STRIP:
- i915_render->hwprim = PRIM3D_TRILIST;
- i915_render->fallback = PIPE_PRIM_QUAD_STRIP;
- return TRUE;
- case PIPE_PRIM_POLYGON:
- i915_render->hwprim = PRIM3D_POLY;
- i915_render->fallback = 0;
- return TRUE;
- default:
- /* FIXME: Actually, can handle a lot more just fine... */
- return FALSE;
- }
-}
-
-/**
- * Used for fallbacks in draw_arrays
- */
-static void
-draw_arrays_generate_indices(struct vbuf_render *render,
- unsigned start, uint nr,
- unsigned type)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- struct i915_context *i915 = i915_render->i915;
- unsigned i;
- unsigned end = start + nr;
- switch(type) {
- case 0:
- for (i = start; i+1 < end; i += 2)
- OUT_BATCH((i+0) | (i+1) << 16);
- if (i < end)
- OUT_BATCH(i);
- break;
- case PIPE_PRIM_LINE_LOOP:
- if (nr >= 2) {
- for (i = start + 1; i < end; i++)
- OUT_BATCH((i-0) | (i+0) << 16);
- OUT_BATCH((i-0) | ( start) << 16);
- }
- break;
- case PIPE_PRIM_QUADS:
- for (i = start; i + 3 < end; i += 4) {
- OUT_BATCH((i+0) | (i+1) << 16);
- OUT_BATCH((i+3) | (i+1) << 16);
- OUT_BATCH((i+2) | (i+3) << 16);
- }
- break;
- case PIPE_PRIM_QUAD_STRIP:
- for (i = start; i + 3 < end; i += 2) {
- OUT_BATCH((i+0) | (i+1) << 16);
- OUT_BATCH((i+3) | (i+2) << 16);
- OUT_BATCH((i+0) | (i+3) << 16);
- }
- break;
- default:
- assert(0);
- }
-}
-
-static unsigned
-draw_arrays_calc_nr_indices(uint nr, unsigned type)
-{
- switch (type) {
- case 0:
- return nr;
- case PIPE_PRIM_LINE_LOOP:
- if (nr >= 2)
- return nr * 2;
- else
- return 0;
- case PIPE_PRIM_QUADS:
- return (nr / 4) * 6;
- case PIPE_PRIM_QUAD_STRIP:
- return ((nr - 2) / 2) * 6;
- default:
- assert(0);
- return 0;
- }
-}
-
-static void
-draw_arrays_fallback(struct vbuf_render *render,
- unsigned start,
- uint nr)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- struct i915_context *i915 = i915_render->i915;
- unsigned nr_indices;
-
- if (i915->dirty)
- i915_update_derived(i915);
-
- if (i915->hardware_dirty)
- i915_emit_hardware_state(i915);
-
- nr_indices = draw_arrays_calc_nr_indices(nr, i915_render->fallback);
- if (!nr_indices)
- return;
-
- if (!BEGIN_BATCH(1 + (nr_indices + 1)/2, 1)) {
- FLUSH_BATCH(NULL);
-
- /* Make sure state is re-emitted after a flush:
- */
- i915_update_derived(i915);
- i915_emit_hardware_state(i915);
- i915->vbo_flushed = 1;
-
- if (!BEGIN_BATCH(1 + (nr_indices + 1)/2, 1)) {
- assert(0);
- goto out;
- }
- }
- OUT_BATCH(_3DPRIMITIVE |
- PRIM_INDIRECT |
- i915_render->hwprim |
- PRIM_INDIRECT_ELTS |
- nr_indices);
-
- draw_arrays_generate_indices(render, start, nr, i915_render->fallback);
-
-out:
- return;
-}
-
-static void
-i915_vbuf_render_draw_arrays(struct vbuf_render *render,
- unsigned start,
- uint nr)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- struct i915_context *i915 = i915_render->i915;
-
- if (i915_render->fallback) {
- draw_arrays_fallback(render, start, nr);
- return;
- }
-
- if (i915->dirty)
- i915_update_derived(i915);
-
- if (i915->hardware_dirty)
- i915_emit_hardware_state(i915);
-
- if (!BEGIN_BATCH(2, 0)) {
- FLUSH_BATCH(NULL);
-
- /* Make sure state is re-emitted after a flush:
- */
- i915_update_derived(i915);
- i915_emit_hardware_state(i915);
- i915->vbo_flushed = 1;
-
- if (!BEGIN_BATCH(2, 0)) {
- assert(0);
- goto out;
- }
- }
-
- OUT_BATCH(_3DPRIMITIVE |
- PRIM_INDIRECT |
- PRIM_INDIRECT_SEQUENTIAL |
- i915_render->hwprim |
- nr);
- OUT_BATCH(start); /* Beginning vertex index */
-
-out:
- return;
-}
-
-/**
- * Used for normal and fallback emitting of indices
- * If type is zero normal operation assumed.
- */
-static void
-draw_generate_indices(struct vbuf_render *render,
- const ushort *indices,
- uint nr_indices,
- unsigned type)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- struct i915_context *i915 = i915_render->i915;
- unsigned i;
-
- switch(type) {
- case 0:
- for (i = 0; i + 1 < nr_indices; i += 2) {
- OUT_BATCH(indices[i] | indices[i+1] << 16);
- }
- if (i < nr_indices) {
- OUT_BATCH(indices[i]);
- }
- break;
- case PIPE_PRIM_LINE_LOOP:
- if (nr_indices >= 2) {
- for (i = 1; i < nr_indices; i++)
- OUT_BATCH(indices[i-1] | indices[i] << 16);
- OUT_BATCH(indices[i-1] | indices[0] << 16);
- }
- break;
- case PIPE_PRIM_QUADS:
- for (i = 0; i + 3 < nr_indices; i += 4) {
- OUT_BATCH(indices[i+0] | indices[i+1] << 16);
- OUT_BATCH(indices[i+3] | indices[i+1] << 16);
- OUT_BATCH(indices[i+2] | indices[i+3] << 16);
- }
- break;
- case PIPE_PRIM_QUAD_STRIP:
- for (i = 0; i + 3 < nr_indices; i += 2) {
- OUT_BATCH(indices[i+0] | indices[i+1] << 16);
- OUT_BATCH(indices[i+3] | indices[i+2] << 16);
- OUT_BATCH(indices[i+0] | indices[i+3] << 16);
- }
- break;
- default:
- assert(0);
- break;
- }
-}
-
-static unsigned
-draw_calc_nr_indices(uint nr_indices, unsigned type)
-{
- switch (type) {
- case 0:
- return nr_indices;
- case PIPE_PRIM_LINE_LOOP:
- if (nr_indices >= 2)
- return nr_indices * 2;
- else
- return 0;
- case PIPE_PRIM_QUADS:
- return (nr_indices / 4) * 6;
- case PIPE_PRIM_QUAD_STRIP:
- return ((nr_indices - 2) / 2) * 6;
- default:
- assert(0);
- return 0;
- }
-}
-
-static void
-i915_vbuf_render_draw(struct vbuf_render *render,
- const ushort *indices,
- uint nr_indices)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- struct i915_context *i915 = i915_render->i915;
- unsigned save_nr_indices;
-
- save_nr_indices = nr_indices;
-
- nr_indices = draw_calc_nr_indices(nr_indices, i915_render->fallback);
- if (!nr_indices)
- return;
-
- if (i915->dirty)
- i915_update_derived(i915);
-
- if (i915->hardware_dirty)
- i915_emit_hardware_state(i915);
-
- if (!BEGIN_BATCH(1 + (nr_indices + 1)/2, 1)) {
- FLUSH_BATCH(NULL);
-
- /* Make sure state is re-emitted after a flush:
- */
- i915_update_derived(i915);
- i915_emit_hardware_state(i915);
- i915->vbo_flushed = 1;
-
- if (!BEGIN_BATCH(1 + (nr_indices + 1)/2, 1)) {
- assert(0);
- goto out;
- }
- }
-
- OUT_BATCH(_3DPRIMITIVE |
- PRIM_INDIRECT |
- i915_render->hwprim |
- PRIM_INDIRECT_ELTS |
- nr_indices);
- draw_generate_indices(render,
- indices,
- save_nr_indices,
- i915_render->fallback);
-
-out:
- return;
-}
-
-static void
-i915_vbuf_render_release_vertices(struct vbuf_render *render)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- struct i915_context *i915 = i915_render->i915;
-
- assert(i915->vbo);
-
- i915_render->vbo_offset += i915_render->vbo_max_used;
- i915_render->vbo_max_used = 0;
- i915->vbo = NULL;
- i915->dirty |= I915_NEW_VBO;
-}
-
-static void
-i915_vbuf_render_destroy(struct vbuf_render *render)
-{
- struct i915_vbuf_render *i915_render = i915_vbuf_render(render);
- FREE(i915_render);
-}
-
-/**
- * Create a new primitive render.
- */
-static struct vbuf_render *
-i915_vbuf_render_create(struct i915_context *i915)
-{
- struct i915_vbuf_render *i915_render = CALLOC_STRUCT(i915_vbuf_render);
- struct intel_winsys *iws = i915->iws;
- int i;
-
- i915_render->i915 = i915;
-
- i915_render->base.max_vertex_buffer_bytes = 128*1024;
-
- /* NOTE: it must be such that state and vertices indices fit in a single
- * batch buffer.
- */
- i915_render->base.max_indices = 16*1024;
-
- i915_render->base.get_vertex_info = i915_vbuf_render_get_vertex_info;
- i915_render->base.allocate_vertices = i915_vbuf_render_allocate_vertices;
- i915_render->base.map_vertices = i915_vbuf_render_map_vertices;
- i915_render->base.unmap_vertices = i915_vbuf_render_unmap_vertices;
- i915_render->base.set_primitive = i915_vbuf_render_set_primitive;
- i915_render->base.draw = i915_vbuf_render_draw;
- i915_render->base.draw_arrays = i915_vbuf_render_draw_arrays;
- i915_render->base.release_vertices = i915_vbuf_render_release_vertices;
- i915_render->base.destroy = i915_vbuf_render_destroy;
-
-
- i915_render->vbo = NULL;
- i915_render->vbo_size = 0;
- i915_render->vbo_offset = 0;
-
- i915_render->pool_used = FALSE;
- i915_render->pool_buffer_size = 128 * 4096;
- i915_render->pool_fifo = u_fifo_create(6);
- for (i = 0; i < 6; i++)
- u_fifo_add(i915_render->pool_fifo,
- iws->buffer_create(iws, i915_render->pool_buffer_size, 64,
- INTEL_NEW_VERTEX));
-
-#if 0
- /* TODO JB: is this realy needed? */
- i915_render->vbo_ptr = iws->buffer_map(iws, i915_render->vbo, TRUE);
- iws->buffer_unmap(iws, i915_render->vbo);
-#endif
-
- return &i915_render->base;
-}
-
-/**
- * Create a new primitive vbuf/render stage.
- */
-struct draw_stage *i915_draw_vbuf_stage(struct i915_context *i915)
-{
- struct vbuf_render *render;
- struct draw_stage *stage;
-
- render = i915_vbuf_render_create(i915);
- if(!render)
- return NULL;
-
- stage = draw_vbuf_stage(i915->draw, render);
- if(!stage) {
- render->destroy(render);
- return NULL;
- }
- /** TODO JB: this shouldn't be here */
- draw_set_render(i915->draw, render);
-
- return stage;
-}
projects / mesa.git / blobdiff