Import a classic DRI driver for nv0x-nv2x.

1 files changed, 361 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_render_t.c b/src/mesa/drivers/dri/nouveau/nouveau_render_t.c
new file mode 100644
index 00000000000..c0505781cfe
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nouveau_render_t.c
@@ -0,0 +1,361 @@
+/*
+ * Copyright (C) 2009-2010 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.
+ *
+ */
+
+/*
+ * Vertex submission helper definitions shared among the software and
+ * hardware TnL paths.
+ */
+
+#include "nouveau_gldefs.h"
+
+#include "main/light.h"
+#include "vbo/vbo.h"
+#include "tnl/tnl.h"
+
+#define OUT_INDICES_L(r, i, d, n)		\
+	BATCH_OUT_L(i + d, n);			\
+	(void)r
+#define OUT_INDICES_I16(r, i, d, n)				\
+	BATCH_OUT_I16(r->ib.extract_u(&r->ib, 0, i) + d,	\
+		      r->ib.extract_u(&r->ib, 0, i + 1) + d)
+#define OUT_INDICES_I32(r, i, d, n)			\
+	BATCH_OUT_I32(r->ib.extract_u(&r->ib, 0, i) + d)
+
+/*
+ * Emit <n> vertices using BATCH_OUT_<out>, MAX_OUT_<out> at a time,
+ * grouping them in packets of length MAX_PACKET.
+ *
+ * out:   hardware index data type.
+ * ctx:   GL context.
+ * start: element within the index buffer to begin with.
+ * delta: integer correction that will be added to each index found in
+ *        the index buffer.
+ */
+#define EMIT_VBO(out, ctx, start, delta, n) do {			\
+		struct nouveau_render_state *render = to_render_state(ctx); \
+		int npush = n;						\
+									\
+		while (npush) {						\
+			int npack = MIN2(npush, MAX_PACKET * MAX_OUT_##out); \
+			npush -= npack;					\
+									\
+			BATCH_PACKET_##out((npack + MAX_OUT_##out - 1)	\
+					   / MAX_OUT_##out);		\
+			while (npack) {					\
+				int nout = MIN2(npack, MAX_OUT_##out);	\
+				npack -= nout;				\
+									\
+				OUT_INDICES_##out(render, start, delta, \
+						  nout);		\
+				start += nout;				\
+			}						\
+		}							\
+	} while (0)
+
+/*
+ * Emit the <n>-th element of the array <a>, using IMM_OUT.
+ */
+#define EMIT_IMM(ctx, a, n) do {					\
+		struct nouveau_attr_info *info =			\
+			&TAG(vertex_attrs)[(a)->attr];			\
+		int m;							\
+									\
+		if (!info->emit) {					\
+			IMM_PACKET(info->imm_method, info->imm_fields);	\
+									\
+			for (m = 0; m < (a)->fields; m++)		\
+				IMM_OUT((a)->extract_f(a, n, m));	\
+									\
+			for (m = (a)->fields; m < info->imm_fields; m++) \
+				IMM_OUT(((float []){0, 0, 0, 1})[m]);	\
+									\
+		} else {						\
+			info->emit(ctx, a, (a)->buf + n * (a)->stride);	\
+		}							\
+	} while (0)
+
+/*
+ * Select an appropriate dispatch function for the given index buffer.
+ */
+static void
+get_array_dispatch(struct nouveau_array_state *a, dispatch_t *dispatch)
+{
+	if (!a->fields) {
+		auto void f(GLcontext *, unsigned int, int, unsigned int);
+
+		void f(GLcontext *ctx, unsigned int start, int delta,
+		       unsigned int n) {
+			struct nouveau_channel *chan = context_chan(ctx);
+			RENDER_LOCALS(ctx);
+
+			EMIT_VBO(L, ctx, start, delta, n);
+		};
+
+		*dispatch = f;
+
+	} else if (a->type == GL_UNSIGNED_INT) {
+		auto void f(GLcontext *, unsigned int, int, unsigned int);
+
+		void f(GLcontext *ctx, unsigned int start, int delta,
+		       unsigned int n) {
+			struct nouveau_channel *chan = context_chan(ctx);
+			RENDER_LOCALS(ctx);
+
+			EMIT_VBO(I32, ctx, start, delta, n);
+		};
+
+		*dispatch = f;
+
+	} else {
+		auto void f(GLcontext *, unsigned int, int, unsigned int);
+
+		void f(GLcontext *ctx, unsigned int start, int delta,
+		       unsigned int n) {
+			struct nouveau_channel *chan = context_chan(ctx);
+			RENDER_LOCALS(ctx);
+
+			EMIT_VBO(I32, ctx, start, delta, n & 1);
+			EMIT_VBO(I16, ctx, start, delta, n & ~1);
+		};
+
+		*dispatch = f;
+	}
+}
+
+/*
+ * Select appropriate element extraction functions for the given
+ * array.
+ */
+static void
+get_array_extract(struct nouveau_array_state *a,
+		  extract_u_t *extract_u, extract_f_t *extract_f)
+{
+#define EXTRACT(in_t, out_t, k)						\
+	({								\
+		auto out_t f(struct nouveau_array_state *, int, int);	\
+		out_t f(struct nouveau_array_state *a, int i, int j) {	\
+			in_t x = ((in_t *)(a->buf + i * a->stride))[j];	\
+									\
+			return (out_t)x / (k);				\
+		};							\
+		f;							\
+	});
+
+	switch (a->type) {
+	case GL_BYTE:
+		*extract_u = EXTRACT(char, unsigned, 1);
+		*extract_f = EXTRACT(char, float, SCHAR_MAX);
+		break;
+	case GL_UNSIGNED_BYTE:
+		*extract_u = EXTRACT(unsigned char, unsigned, 1);
+		*extract_f = EXTRACT(unsigned char, float, UCHAR_MAX);
+		break;
+	case GL_SHORT:
+		*extract_u = EXTRACT(short, unsigned, 1);
+		*extract_f = EXTRACT(short, float, SHRT_MAX);
+		break;
+	case GL_UNSIGNED_SHORT:
+		*extract_u = EXTRACT(unsigned short, unsigned, 1);
+		*extract_f = EXTRACT(unsigned short, float, USHRT_MAX);
+		break;
+	case GL_INT:
+		*extract_u = EXTRACT(int, unsigned, 1);
+		*extract_f = EXTRACT(int, float, INT_MAX);
+		break;
+	case GL_UNSIGNED_INT:
+		*extract_u = EXTRACT(unsigned int, unsigned, 1);
+		*extract_f = EXTRACT(unsigned int, float, UINT_MAX);
+		break;
+	case GL_FLOAT:
+		*extract_u = EXTRACT(float, unsigned, 1.0 / UINT_MAX);
+		*extract_f = EXTRACT(float, float, 1);
+		break;
+
+	default:
+		assert(0);
+	}
+}
+
+/*
+ * Returns a pointer to a chunk of <size> bytes long GART memory. <bo>
+ * will be updated with the buffer object the memory is located in.
+ *
+ * If <offset> is provided, it will be updated with the offset within
+ * <bo> of the allocated memory. Otherwise the returned memory will
+ * always be located right at the beginning of <bo>.
+ */
+static inline void *
+get_scratch_vbo(GLcontext *ctx, unsigned size, struct nouveau_bo **bo,
+		unsigned *offset)
+{
+	struct nouveau_scratch_state *scratch = &to_render_state(ctx)->scratch;
+	void *buf;
+
+	if (scratch->buf && offset &&
+	    size <= RENDER_SCRATCH_SIZE - scratch->offset) {
+		nouveau_bo_ref(scratch->bo[scratch->index], bo);
+
+		buf = scratch->buf + scratch->offset;
+		*offset = scratch->offset;
+		scratch->offset += size;
+
+	} else if (size <= RENDER_SCRATCH_SIZE) {
+		scratch->index = (scratch->index + 1) % RENDER_SCRATCH_COUNT;
+		nouveau_bo_ref(scratch->bo[scratch->index], bo);
+
+		nouveau_bo_map(*bo, NOUVEAU_BO_WR);
+		buf = scratch->buf = (*bo)->map;
+		nouveau_bo_unmap(*bo);
+
+		if (offset)
+			*offset = 0;
+		scratch->offset = size;
+
+	} else {
+		nouveau_bo_new(context_dev(ctx),
+			       NOUVEAU_BO_MAP | NOUVEAU_BO_GART, 0, size, bo);
+
+		nouveau_bo_map(*bo, NOUVEAU_BO_WR);
+		buf = (*bo)->map;
+		nouveau_bo_unmap(*bo);
+
+		if (offset)
+			*offset = 0;
+	}
+
+	return buf;
+}
+
+/*
+ * Returns how many vertices you can draw using <n> pushbuf dwords.
+ */
+static inline unsigned
+get_max_vertices(GLcontext *ctx, const struct _mesa_index_buffer *ib,
+		 unsigned n)
+{
+	struct nouveau_render_state *render = to_render_state(ctx);
+
+	if (render->mode == IMM) {
+		return MAX2(0, n - 4) / (render->vertex_size / 4 +
+					 render->attr_count);
+	} else {
+		unsigned max_out;
+
+		if (ib) {
+			switch (ib->type) {
+			case GL_UNSIGNED_INT:
+				max_out = MAX_OUT_I32;
+				break;
+
+			case GL_UNSIGNED_SHORT:
+				max_out = MAX_OUT_I16;
+				break;
+
+			case GL_UNSIGNED_BYTE:
+				max_out = MAX_OUT_I16;
+				break;
+			}
+		} else {
+			max_out = MAX_OUT_L;
+		}
+
+		return MAX2(0, n - 7) * max_out * MAX_PACKET / (1 + MAX_PACKET);
+	}
+}
+
+#include "nouveau_vbo_t.c"
+#include "nouveau_swtnl_t.c"
+
+static void
+TAG(emit_material)(GLcontext *ctx, struct nouveau_array_state *a,
+		   const void *v)
+{
+	const int attr = a->attr - VERT_ATTRIB_GENERIC0;
+	const int state = ((int []) {
+				NOUVEAU_STATE_MATERIAL_FRONT_AMBIENT,
+				NOUVEAU_STATE_MATERIAL_BACK_AMBIENT,
+				NOUVEAU_STATE_MATERIAL_FRONT_DIFFUSE,
+				NOUVEAU_STATE_MATERIAL_BACK_DIFFUSE,
+				NOUVEAU_STATE_MATERIAL_FRONT_SPECULAR,
+				NOUVEAU_STATE_MATERIAL_BACK_SPECULAR,
+				NOUVEAU_STATE_MATERIAL_FRONT_AMBIENT,
+				NOUVEAU_STATE_MATERIAL_BACK_AMBIENT,
+				NOUVEAU_STATE_MATERIAL_FRONT_SHININESS,
+				NOUVEAU_STATE_MATERIAL_BACK_SHININESS
+			}) [attr];
+
+	COPY_4V(ctx->Light.Material.Attrib[attr], (float *)v);
+	_mesa_update_material(ctx, 1 << attr);
+
+	context_drv(ctx)->emit[state](ctx, state);
+}
+
+static void
+TAG(render_prims)(GLcontext *ctx, const struct gl_client_array **arrays,
+		  const struct _mesa_prim *prims, GLuint nr_prims,
+		  const struct _mesa_index_buffer *ib,
+		  GLboolean index_bounds_valid,
+		  GLuint min_index, GLuint max_index)
+{
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+
+	nouveau_validate_framebuffer(ctx);
+
+	if (nctx->fallback == HWTNL)
+		TAG(vbo_render_prims)(ctx, arrays, prims, nr_prims, ib,
+				      index_bounds_valid, min_index, max_index);
+
+	if (nctx->fallback == SWTNL)
+		_tnl_vbo_draw_prims(ctx, arrays, prims, nr_prims, ib,
+				    index_bounds_valid, min_index, max_index);
+}
+
+void
+TAG(render_init)(GLcontext *ctx)
+{
+	struct nouveau_render_state *render = to_render_state(ctx);
+	struct nouveau_scratch_state *scratch = &render->scratch;
+	int ret, i;
+
+	for (i = 0; i < RENDER_SCRATCH_COUNT; i++) {
+		ret = nouveau_bo_new(context_dev(ctx),
+				     NOUVEAU_BO_MAP | NOUVEAU_BO_GART,
+				     0, RENDER_SCRATCH_SIZE, &scratch->bo[i]);
+		assert(!ret);
+	}
+
+	for (i = 0; i < VERT_ATTRIB_MAX; i++)
+		render->map[i] = -1;
+
+	TAG(swtnl_init)(ctx);
+	vbo_set_draw_func(ctx, TAG(render_prims));
+}
+
+void
+TAG(render_destroy)(GLcontext *ctx)
+{
+	TAG(swtnl_destroy)(ctx);
+}