#include "pipe/p_winsys.h"
#include "pipe/tgsi/exec/tgsi_attribs.h"
+#include "pipe/draw/draw_private.h"
+#include "pipe/draw/draw_context.h"
static GLuint
* we have something to render.
* Basically, translate the information into the format expected by pipe.
*/
-static void
-draw_vbo(GLcontext *ctx,
- const struct gl_client_array **arrays,
- const struct _mesa_prim *prims,
- GLuint nr_prims,
- const struct _mesa_index_buffer *ib,
- GLuint min_index,
- GLuint max_index)
+void
+st_draw_vbo(GLcontext *ctx,
+ const struct gl_client_array **arrays,
+ const struct _mesa_prim *prims,
+ GLuint nr_prims,
+ const struct _mesa_index_buffer *ib,
+ GLuint min_index,
+ GLuint max_index)
{
struct pipe_context *pipe = ctx->st->pipe;
GLuint attr, i;
+/**
+ * Called by VBO to draw arrays when in selection or feedback mode.
+ * 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,
+ GLuint min_index,
+ GLuint max_index)
+{
+ struct st_context *st = ctx->st;
+ struct pipe_context *pipe = st->pipe;
+ struct draw_context *draw = st->draw;
+ GLuint attr, i;
+ GLbitfield attrsNeeded;
+ const unsigned attr0_offset = (unsigned) arrays[0]->Ptr;
+ struct pipe_buffer_handle *index_buffer_handle = 0;
+
+ assert(ctx->RenderMode == GL_SELECT ||
+ ctx->RenderMode == GL_FEEDBACK);
+ assert(draw);
+
+ /*
+ * 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_setup_state(draw, &st->state.setup);
+ draw_set_vertex_shader(draw, &st->state.vs);
+ /* XXX need to set vertex info too */
+
+
+ update_default_attribs_buffer(ctx);
+
+ /* this must be after state validation */
+ attrsNeeded = ctx->st->state.vs.inputs_read;
+
+ /* tell draw module about the vertex array element/attributes */
+ for (attr = 0; attr < 16; attr++) {
+ struct pipe_vertex_buffer vbuffer;
+ struct pipe_vertex_element velement;
+ void *map;
+
+ vbuffer.buffer = NULL;
+ vbuffer.pitch = 0;
+ velement.src_offset = 0;
+ velement.vertex_buffer_index = 0;
+ velement.src_format = 0;
+
+ if (attrsNeeded & (1 << attr)) {
+ const GLuint mesaAttr = tgsi_attrib_to_mesa_attrib(attr);
+ struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
+
+ if (bufobj && bufobj->Name) {
+ struct st_buffer_object *stobj = st_buffer_object(bufobj);
+ /* Recall that for VBOs, the gl_client_array->Ptr field is
+ * really an offset from the start of the VBO, not a pointer.
+ */
+ unsigned offset = (unsigned) arrays[mesaAttr]->Ptr;
+
+ assert(stobj->buffer);
+
+ vbuffer.buffer = stobj->buffer;
+ vbuffer.buffer_offset = attr0_offset; /* in bytes */
+ vbuffer.pitch = arrays[mesaAttr]->StrideB; /* in bytes */
+ vbuffer.max_index = 0; /* need this? */
+
+ velement.src_offset = offset - attr0_offset; /* bytes */
+ velement.vertex_buffer_index = attr;
+ velement.dst_offset = 0; /* need this? */
+ velement.src_format = pipe_vertex_format(arrays[mesaAttr]->Type,
+ arrays[mesaAttr]->Size);
+ assert(velement.src_format);
+ }
+ else {
+ /* use the default attribute buffer */
+ vbuffer.buffer = ctx->st->default_attrib_buffer;
+ vbuffer.buffer_offset = 0;
+ vbuffer.pitch = 0; /* must be zero! */
+ vbuffer.max_index = 1;
+
+ velement.src_offset = attr * 4 * sizeof(GLfloat);
+ velement.vertex_buffer_index = attr;
+ velement.dst_offset = 0;
+ velement.src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+ }
+ }
+
+ if (attr == 0)
+ assert(vbuffer.buffer);
+
+ draw_set_vertex_buffer(draw, attr, &vbuffer);
+ draw_set_vertex_element(draw, attr, &velement);
+
+ /* map the attrib buffer */
+ if (vbuffer.buffer) {
+ map = pipe->winsys->buffer_map(pipe->winsys,
+ vbuffer.buffer,
+ PIPE_BUFFER_FLAG_READ);
+ draw_set_mapped_vertex_buffer(draw, attr, map);
+ }
+ }
+
+
+ if (ib) {
+ unsigned indexSize;
+ struct gl_buffer_object *bufobj = ib->obj;
+ struct st_buffer_object *stobj = st_buffer_object(bufobj);
+ index_buffer_handle = stobj->buffer;
+ void *map;
+
+ switch (ib->type) {
+ case GL_UNSIGNED_INT:
+ indexSize = 4;
+ break;
+ case GL_UNSIGNED_SHORT:
+ indexSize = 2;
+ break;
+ default:
+ assert(0);
+ }
+
+ map = pipe->winsys->buffer_map(pipe->winsys,
+ index_buffer_handle,
+ PIPE_BUFFER_FLAG_READ);
+ draw_set_mapped_element_buffer(draw, indexSize, map);
+ }
+
+
+ /* 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
+ */
+ for (i = 0; i < PIPE_ATTRIB_MAX; i++) {
+ if (draw->vertex_buffer[i].buffer) {
+ pipe->winsys->buffer_unmap(pipe->winsys,
+ draw->vertex_buffer[i].buffer);
+ draw_set_mapped_vertex_buffer(draw, i, NULL);
+ }
+ }
+ if (ib) {
+ pipe->winsys->buffer_unmap(pipe->winsys, index_buffer_handle);
+ draw_set_mapped_element_buffer(draw, 0, NULL);
+ }
+}
+
/* This is all a hack to keep using tnl until we have vertex programs
assert(vbo);
assert(vbo->draw_prims);
- vbo->draw_prims = draw_vbo;
+ vbo->draw_prims = st_draw_vbo;
_tnl_ProgramCacheInit( ctx );
}
projects / mesa.git / commitdiff