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/*
* Copyright (C) 2009 Francisco Jerez.
* 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, sublicense, 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 NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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 "nouveau_driver.h"
#include "nouveau_context.h"
#include "nouveau_util.h"
#include "nouveau_class.h"
#include "nv04_driver.h"
#include "tnl/tnl.h"
#include "tnl/t_pipeline.h"
#include "tnl/t_vertex.h"
#define NUM_VERTEX_ATTRS 6
static void
swtnl_update_viewport(GLcontext *ctx)
{
float *viewport = to_nv04_context(ctx)->viewport;
struct gl_framebuffer *fb = ctx->DrawBuffer;
get_viewport_scale(ctx, viewport);
get_viewport_translate(ctx, &viewport[MAT_TX]);
/* It wants normalized Z coordinates. */
viewport[MAT_SZ] /= fb->_DepthMaxF;
viewport[MAT_TZ] /= fb->_DepthMaxF;
}
static void
swtnl_emit_attr(GLcontext *ctx, struct tnl_attr_map *m, int attr, int emit)
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
if (RENDERINPUTS_TEST(tnl->render_inputs_bitset, attr))
*m = (struct tnl_attr_map) {
.attrib = attr,
.format = emit,
};
else
*m = (struct tnl_attr_map) {
.format = EMIT_PAD,
.offset = _tnl_format_info[emit].attrsize,
};
}
static void
swtnl_choose_attrs(GLcontext *ctx)
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct nouveau_grobj *fahrenheit = nv04_context_engine(ctx);
struct nv04_context *nctx = to_nv04_context(ctx);
static struct tnl_attr_map map[NUM_VERTEX_ATTRS];
int n = 0;
tnl->vb.AttribPtr[VERT_ATTRIB_POS] = tnl->vb.NdcPtr;
swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT);
swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA);
swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR);
swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_FOG, EMIT_1UB_1F);
swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_TEX0, EMIT_2F);
if (nv04_mtex_engine(fahrenheit))
swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_TEX1, EMIT_2F);
swtnl_update_viewport(ctx);
_tnl_install_attrs(ctx, map, n, nctx->viewport, 0);
}
/* TnL renderer entry points */
static void
swtnl_start(GLcontext *ctx)
{
swtnl_choose_attrs(ctx);
}
static void
swtnl_finish(GLcontext *ctx)
{
FIRE_RING(context_chan(ctx));
}
static void
swtnl_primitive(GLcontext *ctx, GLenum mode)
{
}
static void
swtnl_reset_stipple(GLcontext *ctx)
{
}
/* Primitive rendering */
#define BEGIN_PRIMITIVE(n) \
struct nouveau_channel *chan = context_chan(ctx); \
struct nouveau_grobj *fahrenheit = nv04_context_engine(ctx); \
int vertex_len = TNL_CONTEXT(ctx)->clipspace.vertex_size / 4; \
\
if (nv04_mtex_engine(fahrenheit)) \
BEGIN_RING(chan, fahrenheit, \
NV04_MULTITEX_TRIANGLE_TLMTVERTEX_SX(0), \
n * vertex_len); \
else \
BEGIN_RING(chan, fahrenheit, \
NV04_TEXTURED_TRIANGLE_TLVERTEX_SX(0), \
n * vertex_len); \
#define OUT_VERTEX(i) \
OUT_RINGp(chan, _tnl_get_vertex(ctx, i), vertex_len);
#define END_PRIMITIVE(draw) \
if (nv04_mtex_engine(fahrenheit)) { \
BEGIN_RING(chan, fahrenheit, \
NV04_MULTITEX_TRIANGLE_DRAWPRIMITIVE(0), 1); \
OUT_RING(chan, draw); \
} else { \
BEGIN_RING(chan, fahrenheit, \
NV04_TEXTURED_TRIANGLE_DRAWPRIMITIVE(0), 1); \
OUT_RING(chan, draw); \
}
static void
swtnl_points(GLcontext *ctx, GLuint first, GLuint last)
{
}
static void
swtnl_line(GLcontext *ctx, GLuint v1, GLuint v2)
{
}
static void
swtnl_triangle(GLcontext *ctx, GLuint v1, GLuint v2, GLuint v3)
{
BEGIN_PRIMITIVE(3);
OUT_VERTEX(v1);
OUT_VERTEX(v2);
OUT_VERTEX(v3);
END_PRIMITIVE(0x102);
}
static void
swtnl_quad(GLcontext *ctx, GLuint v1, GLuint v2, GLuint v3, GLuint v4)
{
BEGIN_PRIMITIVE(4);
OUT_VERTEX(v1);
OUT_VERTEX(v2);
OUT_VERTEX(v3);
OUT_VERTEX(v4);
END_PRIMITIVE(0x213103);
}
/* TnL initialization. */
void
nv04_render_init(GLcontext *ctx)
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
tnl->Driver.Render.Interp = _tnl_interp;
tnl->Driver.Render.CopyPV = _tnl_copy_pv;
tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon;
tnl->Driver.Render.ClippedLine = _tnl_RenderClippedLine;
tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
tnl->Driver.Render.Start = swtnl_start;
tnl->Driver.Render.Finish = swtnl_finish;
tnl->Driver.Render.PrimitiveNotify = swtnl_primitive;
tnl->Driver.Render.ResetLineStipple = swtnl_reset_stipple;
tnl->Driver.Render.Points = swtnl_points;
tnl->Driver.Render.Line = swtnl_line;
tnl->Driver.Render.Triangle = swtnl_triangle;
tnl->Driver.Render.Quad = swtnl_quad;
_tnl_need_projected_coords(ctx, GL_TRUE);
_tnl_init_vertices(ctx, tnl->vb.Size,
NUM_VERTEX_ATTRS * 4 * sizeof(GLfloat));
_tnl_allow_pixel_fog(ctx, GL_FALSE);
_tnl_wakeup(ctx);
}
void
nv04_render_destroy(GLcontext *ctx)
{
}
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