static struct pipe_buffer *
setup_vertex_data_tex(struct renderer *ctx,
float x0, float y0, float x1, float y1,
float s0, float t0, float s1, float t1,
float z)
{
ctx->vertices[0][0][0] = x0;
ctx->vertices[0][0][1] = y0;
ctx->vertices[0][0][2] = z;
ctx->vertices[0][1][0] = s0; /*s*/
ctx->vertices[0][1][1] = t0; /*t*/
ctx->vertices[1][0][0] = x1;
ctx->vertices[1][0][1] = y0;
ctx->vertices[1][0][2] = z;
ctx->vertices[1][1][0] = s1; /*s*/
ctx->vertices[1][1][1] = t0; /*t*/
ctx->vertices[2][0][0] = x1;
ctx->vertices[2][0][1] = y1;
ctx->vertices[2][0][2] = z;
ctx->vertices[2][1][0] = s1;
ctx->vertices[2][1][1] = t1;
ctx->vertices[3][0][0] = x0;
ctx->vertices[3][0][1] = y1;
ctx->vertices[3][0][2] = z;
ctx->vertices[3][1][0] = s0;
ctx->vertices[3][1][1] = t1;
return pipe_user_buffer_create( ctx->pipe->screen,
ctx->vertices,
sizeof(ctx->vertices) );
}
static INLINE struct pipe_buffer *
renderer_buffer_create(struct xorg_renderer *r)
{
struct pipe_buffer *buf =
pipe_user_buffer_create(r->pipe->screen,
r->buffer,
sizeof(float)*
r->buffer_size);
r->buffer_size = 0;
return buf;
}
static INLINE struct pipe_resource *
renderer_buffer_create(struct xa_context *r)
{
struct pipe_resource *buf = pipe_user_buffer_create(r->pipe->screen,
r->buffer,
sizeof(float) *
r->buffer_size,
PIPE_BIND_VERTEX_BUFFER);
r->buffer_size = 0;
return buf;
}
static void draw_polygon(struct vg_context *ctx,
struct polygon *poly)
{
int vert_size;
struct pipe_context *pipe;
struct pipe_vertex_buffer vbuffer;
struct pipe_vertex_element velement;
vert_size = poly->num_verts * COMPONENTS * sizeof(float);
/*polygon_print(poly);*/
pipe = ctx->pipe;
if (poly->vbuf == NULL || poly->dirty) {
if (poly->vbuf) {
pipe_resource_reference(&poly->vbuf,
NULL);
}
poly->screen = pipe->screen;
poly->vbuf= pipe_user_buffer_create(poly->screen,
poly->data,
vert_size,
PIPE_BIND_VERTEX_BUFFER);
poly->dirty = VG_FALSE;
}
/* tell pipe about the vertex buffer */
memset(&vbuffer, 0, sizeof(vbuffer));
vbuffer.buffer = poly->vbuf;
vbuffer.stride = COMPONENTS * sizeof(float); /* vertex size */
vbuffer.buffer_offset = 0;
vbuffer.max_index = poly->num_verts - 1;
pipe->set_vertex_buffers(pipe, 1, &vbuffer);
/* tell pipe about the vertex attributes */
memset(&velement, 0, sizeof(velement));
velement.src_offset = 0;
velement.instance_divisor = 0;
velement.vertex_buffer_index = 0;
velement.src_format = PIPE_FORMAT_R32G32_FLOAT;
cso_set_vertex_elements(ctx->cso_context, 1, &velement);
/* draw */
util_draw_arrays(pipe, PIPE_PRIM_TRIANGLE_FAN, 0, (uint) poly->num_verts);
}
/**
* Draw renderer quad.
*/
static void renderer_quad_draw(struct renderer *r)
{
struct pipe_resource *buf;
buf = pipe_user_buffer_create(r->pipe->screen,
r->vertices,
sizeof(r->vertices),
PIPE_BIND_VERTEX_BUFFER);
if (buf) {
util_draw_vertex_buffer(r->pipe, buf, 0,
PIPE_PRIM_TRIANGLE_FAN,
Elements(r->vertices), /* verts */
Elements(r->vertices[0])); /* attribs/vert */
pipe_resource_reference(&buf, NULL);
}
}
/**
* Called by VBO to draw arrays when in selection or feedback mode and
* to implement glRasterPos.
* This is very much like the normal draw_vbo() function above.
* Look at code refactoring some day.
* Might move this into the failover module some day.
*/
void
st_feedback_draw_vbo(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 st_context *st = ctx->st;
struct pipe_context *pipe = st->pipe;
struct draw_context *draw = st->draw;
const struct st_vertex_program *vp;
const struct pipe_shader_state *vs;
struct pipe_buffer *index_buffer_handle = 0;
struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS];
struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
GLuint attr, i;
ubyte *mapped_constants;
assert(draw);
st_validate_state(ctx->st);
if (!index_bounds_valid)
vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);
/* must get these after state validation! */
vp = ctx->st->vp;
vs = &st->vp->state;
if (!st->vp->draw_shader) {
st->vp->draw_shader = draw_create_vertex_shader(draw, vs);
}
/*
* Set up the draw module's state.
*
* We'd like to do this less frequently, but the normal state-update
* code sends state updates to the pipe, not to our private draw module.
*/
assert(draw);
draw_set_viewport_state(draw, &st->state.viewport);
draw_set_clip_state(draw, &st->state.clip);
draw_set_rasterizer_state(draw, &st->state.rasterizer);
draw_bind_vertex_shader(draw, st->vp->draw_shader);
set_feedback_vertex_format(ctx);
/* loop over TGSI shader inputs to determine vertex buffer
* and attribute info
*/
for (attr = 0; attr < vp->num_inputs; attr++) {
const GLuint mesaAttr = vp->index_to_input[attr];
struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
void *map;
if (bufobj && bufobj->Name) {
/* Attribute data is in a VBO.
* Recall that for VBOs, the gl_client_array->Ptr field is
* really an offset from the start of the VBO, not a pointer.
*/
struct st_buffer_object *stobj = st_buffer_object(bufobj);
assert(stobj->buffer);
vbuffers[attr].buffer = NULL;
pipe_buffer_reference(&vbuffers[attr].buffer, stobj->buffer);
vbuffers[attr].buffer_offset = pointer_to_offset(arrays[0]->Ptr);
velements[attr].src_offset = arrays[mesaAttr]->Ptr - arrays[0]->Ptr;
}
else {
/* attribute data is in user-space memory, not a VBO */
uint bytes = (arrays[mesaAttr]->Size
* _mesa_sizeof_type(arrays[mesaAttr]->Type)
* (max_index + 1));
/* wrap user data */
vbuffers[attr].buffer
= pipe_user_buffer_create(pipe->screen, (void *) arrays[mesaAttr]->Ptr,
bytes);
vbuffers[attr].buffer_offset = 0;
velements[attr].src_offset = 0;
}
/* common-case setup */
vbuffers[attr].stride = arrays[mesaAttr]->StrideB; /* in bytes */
vbuffers[attr].max_index = max_index;
velements[attr].vertex_buffer_index = attr;
velements[attr].nr_components = arrays[mesaAttr]->Size;
velements[attr].src_format =
st_pipe_vertex_format(arrays[mesaAttr]->Type,
arrays[mesaAttr]->Size,
arrays[mesaAttr]->Format,
arrays[mesaAttr]->Normalized);
assert(velements[attr].src_format);
/* tell draw about this attribute */
#if 0
draw_set_vertex_buffer(draw, attr, &vbuffer[attr]);
#endif
/* map the attrib buffer */
map = pipe_buffer_map(pipe->screen, vbuffers[attr].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(draw, attr, map);
}
draw_set_vertex_buffers(draw, vp->num_inputs, vbuffers);
draw_set_vertex_elements(draw, vp->num_inputs, velements);
if (ib) {
struct gl_buffer_object *bufobj = ib->obj;
unsigned indexSize;
void *map;
switch (ib->type) {
case GL_UNSIGNED_INT:
indexSize = 4;
break;
case GL_UNSIGNED_SHORT:
indexSize = 2;
break;
default:
assert(0);
return;
}
if (bufobj && bufobj->Name) {
struct st_buffer_object *stobj = st_buffer_object(bufobj);
index_buffer_handle = stobj->buffer;
map = pipe_buffer_map(pipe->screen, index_buffer_handle,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer(draw, indexSize, map);
}
else {
draw_set_mapped_element_buffer(draw, indexSize, (void *) ib->ptr);
}
}
else {
/* no index/element buffer */
draw_set_mapped_element_buffer(draw, 0, NULL);
}
/* map constant buffers */
mapped_constants = pipe_buffer_map(pipe->screen,
st->state.constants[PIPE_SHADER_VERTEX].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_constant_buffer(st->draw, mapped_constants,
st->state.constants[PIPE_SHADER_VERTEX].buffer->size);
/* draw here */
for (i = 0; i < nr_prims; i++) {
draw_arrays(draw, prims[i].mode, prims[i].start, prims[i].count);
}
/* unmap constant buffers */
pipe_buffer_unmap(pipe->screen, st->state.constants[PIPE_SHADER_VERTEX].buffer);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
if (draw->pt.vertex_buffer[i].buffer) {
pipe_buffer_unmap(pipe->screen, draw->pt.vertex_buffer[i].buffer);
pipe_buffer_reference(&draw->pt.vertex_buffer[i].buffer, NULL);
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
}
if (index_buffer_handle) {
pipe_buffer_unmap(pipe->screen, index_buffer_handle);
draw_set_mapped_element_buffer(draw, 0, NULL);
}
}
/**
* Called by VBO to draw arrays when in selection or feedback mode and
* to implement glRasterPos.
* This is very much like the normal draw_vbo() function above.
* Look at code refactoring some day.
*/
void
st_feedback_draw_vbo(struct gl_context *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 gl_transform_feedback_object *tfb_vertcount)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct draw_context *draw = st->draw;
const struct st_vertex_program *vp;
const struct pipe_shader_state *vs;
struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS];
struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
struct pipe_index_buffer ibuffer;
struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
struct pipe_transfer *ib_transfer = NULL;
GLuint attr, i;
const GLubyte *low_addr = NULL;
const void *mapped_indices = NULL;
assert(draw);
st_validate_state(st);
if (!index_bounds_valid)
vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index, nr_prims);
/* must get these after state validation! */
vp = st->vp;
vs = &st->vp_variant->tgsi;
if (!st->vp_variant->draw_shader) {
st->vp_variant->draw_shader = draw_create_vertex_shader(draw, vs);
}
/*
* Set up the draw module's state.
*
* We'd like to do this less frequently, but the normal state-update
* code sends state updates to the pipe, not to our private draw module.
*/
assert(draw);
draw_set_viewport_state(draw, &st->state.viewport);
draw_set_clip_state(draw, &st->state.clip);
draw_set_rasterizer_state(draw, &st->state.rasterizer, NULL);
draw_bind_vertex_shader(draw, st->vp_variant->draw_shader);
set_feedback_vertex_format(ctx);
/* Find the lowest address of the arrays we're drawing */
if (vp->num_inputs) {
low_addr = arrays[vp->index_to_input[0]]->Ptr;
for (attr = 1; attr < vp->num_inputs; attr++) {
const GLubyte *start = arrays[vp->index_to_input[attr]]->Ptr;
low_addr = MIN2(low_addr, start);
}
}
/* loop over TGSI shader inputs to determine vertex buffer
* and attribute info
*/
for (attr = 0; attr < vp->num_inputs; attr++) {
const GLuint mesaAttr = vp->index_to_input[attr];
struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
void *map;
if (bufobj && bufobj->Name) {
/* Attribute data is in a VBO.
* Recall that for VBOs, the gl_client_array->Ptr field is
* really an offset from the start of the VBO, not a pointer.
*/
struct st_buffer_object *stobj = st_buffer_object(bufobj);
assert(stobj->buffer);
vbuffers[attr].buffer = NULL;
pipe_resource_reference(&vbuffers[attr].buffer, stobj->buffer);
vbuffers[attr].buffer_offset = pointer_to_offset(low_addr);
velements[attr].src_offset = arrays[mesaAttr]->Ptr - low_addr;
}
else {
/* attribute data is in user-space memory, not a VBO */
uint bytes = (arrays[mesaAttr]->Size
* _mesa_sizeof_type(arrays[mesaAttr]->Type)
* (max_index + 1));
/* wrap user data */
vbuffers[attr].buffer
= pipe_user_buffer_create(pipe->screen, (void *) arrays[mesaAttr]->Ptr,
bytes,
PIPE_BIND_VERTEX_BUFFER);
vbuffers[attr].buffer_offset = 0;
velements[attr].src_offset = 0;
}
/* common-case setup */
vbuffers[attr].stride = arrays[mesaAttr]->StrideB; /* in bytes */
velements[attr].instance_divisor = 0;
velements[attr].vertex_buffer_index = attr;
velements[attr].src_format =
st_pipe_vertex_format(arrays[mesaAttr]->Type,
arrays[mesaAttr]->Size,
arrays[mesaAttr]->Format,
arrays[mesaAttr]->Normalized,
arrays[mesaAttr]->Integer);
assert(velements[attr].src_format);
/* tell draw about this attribute */
#if 0
draw_set_vertex_buffer(draw, attr, &vbuffer[attr]);
#endif
/* map the attrib buffer */
map = pipe_buffer_map(pipe, vbuffers[attr].buffer,
PIPE_TRANSFER_READ,
&vb_transfer[attr]);
draw_set_mapped_vertex_buffer(draw, attr, map);
}
draw_set_vertex_buffers(draw, vp->num_inputs, vbuffers);
draw_set_vertex_elements(draw, vp->num_inputs, velements);
memset(&ibuffer, 0, sizeof(ibuffer));
if (ib) {
struct gl_buffer_object *bufobj = ib->obj;
ibuffer.index_size = vbo_sizeof_ib_type(ib->type);
if (ibuffer.index_size == 0)
goto out_unref_vertex;
if (bufobj && bufobj->Name) {
struct st_buffer_object *stobj = st_buffer_object(bufobj);
pipe_resource_reference(&ibuffer.buffer, stobj->buffer);
ibuffer.offset = pointer_to_offset(ib->ptr);
mapped_indices = pipe_buffer_map(pipe, stobj->buffer,
PIPE_TRANSFER_READ, &ib_transfer);
}
else {
/* skip setting ibuffer.buffer as the draw module does not use it */
mapped_indices = ib->ptr;
}
draw_set_index_buffer(draw, &ibuffer);
draw_set_mapped_index_buffer(draw, mapped_indices);
}
/* set the constant buffer */
draw_set_mapped_constant_buffer(st->draw, PIPE_SHADER_VERTEX, 0,
st->state.constants[PIPE_SHADER_VERTEX].ptr,
st->state.constants[PIPE_SHADER_VERTEX].size);
/* draw here */
for (i = 0; i < nr_prims; i++) {
draw_arrays(draw, prims[i].mode, prims[i].start, prims[i].count);
}
/*
* unmap vertex/index buffers
*/
if (ib) {
draw_set_mapped_index_buffer(draw, NULL);
draw_set_index_buffer(draw, NULL);
if (ib_transfer)
pipe_buffer_unmap(pipe, ib_transfer);
pipe_resource_reference(&ibuffer.buffer, NULL);
}
out_unref_vertex:
for (attr = 0; attr < vp->num_inputs; attr++) {
pipe_buffer_unmap(pipe, vb_transfer[attr]);
draw_set_mapped_vertex_buffer(draw, attr, NULL);
pipe_resource_reference(&vbuffers[attr].buffer, NULL);
}
draw_set_vertex_buffers(draw, 0, NULL);
}
struct blitter_context *util_blitter_create(struct pipe_context *pipe)
{
struct blitter_context_priv *ctx;
struct pipe_blend_state blend;
struct pipe_depth_stencil_alpha_state dsa;
struct pipe_rasterizer_state rs_state;
struct pipe_sampler_state sampler_state;
struct pipe_vertex_element velem[2];
unsigned i;
ctx = CALLOC_STRUCT(blitter_context_priv);
if (!ctx)
return NULL;
ctx->base.pipe = pipe;
ctx->base.draw_rectangle = blitter_draw_rectangle;
/* init state objects for them to be considered invalid */
ctx->base.saved_blend_state = INVALID_PTR;
ctx->base.saved_dsa_state = INVALID_PTR;
ctx->base.saved_rs_state = INVALID_PTR;
ctx->base.saved_fs = INVALID_PTR;
ctx->base.saved_vs = INVALID_PTR;
ctx->base.saved_gs = INVALID_PTR;
ctx->base.saved_velem_state = INVALID_PTR;
ctx->base.saved_fb_state.nr_cbufs = ~0;
ctx->base.saved_num_sampler_views = ~0;
ctx->base.saved_num_sampler_states = ~0;
ctx->base.saved_num_vertex_buffers = ~0;
ctx->base.saved_num_so_targets = ~0;
ctx->has_geometry_shader =
pipe->screen->get_shader_param(pipe->screen, PIPE_SHADER_GEOMETRY,
PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0;
ctx->vertex_has_integers =
pipe->screen->get_shader_param(pipe->screen, PIPE_SHADER_VERTEX,
PIPE_SHADER_CAP_INTEGERS);
ctx->has_stream_out =
pipe->screen->get_param(pipe->screen,
PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS) != 0;
/* blend state objects */
memset(&blend, 0, sizeof(blend));
ctx->blend_keep_color = pipe->create_blend_state(pipe, &blend);
blend.rt[0].colormask = PIPE_MASK_RGBA;
ctx->blend_write_color = pipe->create_blend_state(pipe, &blend);
/* depth stencil alpha state objects */
memset(&dsa, 0, sizeof(dsa));
ctx->dsa_keep_depth_stencil =
pipe->create_depth_stencil_alpha_state(pipe, &dsa);
dsa.depth.enabled = 1;
dsa.depth.writemask = 1;
dsa.depth.func = PIPE_FUNC_ALWAYS;
ctx->dsa_write_depth_keep_stencil =
pipe->create_depth_stencil_alpha_state(pipe, &dsa);
dsa.stencil[0].enabled = 1;
dsa.stencil[0].func = PIPE_FUNC_ALWAYS;
dsa.stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE;
dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
dsa.stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE;
dsa.stencil[0].valuemask = 0xff;
dsa.stencil[0].writemask = 0xff;
ctx->dsa_write_depth_stencil =
pipe->create_depth_stencil_alpha_state(pipe, &dsa);
dsa.depth.enabled = 0;
dsa.depth.writemask = 0;
ctx->dsa_keep_depth_write_stencil =
pipe->create_depth_stencil_alpha_state(pipe, &dsa);
/* sampler state */
memset(&sampler_state, 0, sizeof(sampler_state));
sampler_state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler_state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler_state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler_state.normalized_coords = 1;
ctx->sampler_state = pipe->create_sampler_state(pipe, &sampler_state);
/* rasterizer state */
memset(&rs_state, 0, sizeof(rs_state));
rs_state.cull_face = PIPE_FACE_NONE;
rs_state.gl_rasterization_rules = 1;
rs_state.flatshade = 1;
rs_state.depth_clip = 1;
ctx->rs_state = pipe->create_rasterizer_state(pipe, &rs_state);
if (ctx->has_stream_out) {
rs_state.rasterizer_discard = 1;
ctx->rs_discard_state = pipe->create_rasterizer_state(pipe, &rs_state);
}
/* vertex elements states */
memset(&velem[0], 0, sizeof(velem[0]) * 2);
for (i = 0; i < 2; i++) {
velem[i].src_offset = i * 4 * sizeof(float);
velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
}
ctx->velem_state = pipe->create_vertex_elements_state(pipe, 2, &velem[0]);
if (ctx->vertex_has_integers) {
memset(&velem[0], 0, sizeof(velem[0]) * 2);
velem[0].src_offset = 0;
velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
velem[1].src_offset = 4 * sizeof(float);
velem[1].src_format = PIPE_FORMAT_R32G32B32A32_SINT;
ctx->velem_sint_state = pipe->create_vertex_elements_state(pipe, 2, &velem[0]);
memset(&velem[0], 0, sizeof(velem[0]) * 2);
velem[0].src_offset = 0;
velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
velem[1].src_offset = 4 * sizeof(float);
velem[1].src_format = PIPE_FORMAT_R32G32B32A32_UINT;
ctx->velem_uint_state = pipe->create_vertex_elements_state(pipe, 2, &velem[0]);
}
if (ctx->has_stream_out) {
velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
ctx->velem_state_readbuf = pipe->create_vertex_elements_state(pipe, 1, &velem[0]);
}
/* fragment shaders are created on-demand */
/* vertex shaders */
{
const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
TGSI_SEMANTIC_GENERIC };
const uint semantic_indices[] = { 0, 0 };
ctx->vs =
util_make_vertex_passthrough_shader(pipe, 2, semantic_names,
semantic_indices);
}
if (ctx->has_stream_out) {
struct pipe_stream_output_info so;
const uint semantic_names[] = { TGSI_SEMANTIC_POSITION };
const uint semantic_indices[] = { 0 };
memset(&so, 0, sizeof(so));
so.num_outputs = 1;
so.output[0].register_mask = TGSI_WRITEMASK_XYZW;
so.stride = 4;
ctx->vs_pos_only =
util_make_vertex_passthrough_shader_with_so(pipe, 1, semantic_names,
semantic_indices, &so);
}
/* set invariant vertex coordinates */
for (i = 0; i < 4; i++)
ctx->vertices[i][0][3] = 1; /*v.w*/
/* create the vertex buffer */
ctx->vbuf = pipe_user_buffer_create(ctx->base.pipe->screen,
ctx->vertices,
sizeof(ctx->vertices),
PIPE_BIND_VERTEX_BUFFER);
return &ctx->base;
}