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gallium: remove unused st_draw_vertices()

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This commit is contained in:
Brian Paul 2008-04-25 14:00:40 -06:00
parent 7dcbbdf353
commit b6d8b21cc8
2 changed files with 0 additions and 77 deletions
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70
src/mesa/state_tracker/st_draw.c
View file

@ -404,76 +404,6 @@ st_draw_vbo(GLcontext *ctx,
/**
* Utility function for drawing simple primitives (such as quads for
* glClear and glDrawPixels). Coordinates are in screen space.
* \param mode one of PIPE_PRIM_x
* \param numVertex number of vertices
* \param verts vertex data (all attributes are float[4])
* \param numAttribs number of attributes per vertex
*/
void
st_draw_vertices(GLcontext *ctx, unsigned prim,
unsigned numVertex, float *verts,
unsigned numAttribs,
GLboolean inClipCoords)
{
const float width = ctx->DrawBuffer->Width;
const float height = ctx->DrawBuffer->Height;
const unsigned vertex_bytes = numVertex * numAttribs * 4 * sizeof(float);
struct pipe_context *pipe = ctx->st->pipe;
struct pipe_buffer *vbuf;
struct pipe_vertex_buffer vbuffer;
struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
unsigned i;
assert(numAttribs > 0);
if (!inClipCoords) {
/* convert to clip coords */
for (i = 0; i < numVertex; i++) {
float x = verts[i * numAttribs * 4 + 0];
float y = verts[i * numAttribs * 4 + 1];
x = x / width * 2.0 - 1.0;
y = y / height * 2.0 - 1.0;
verts[i * numAttribs * 4 + 0] = x;
verts[i * numAttribs * 4 + 1] = y;
}
}
/* XXX create one-time */
vbuf = pipe->winsys->buffer_create(pipe->winsys, 32,
PIPE_BUFFER_USAGE_VERTEX, vertex_bytes);
assert(vbuf);
memcpy(pipe->winsys->buffer_map(pipe->winsys, vbuf,
PIPE_BUFFER_USAGE_CPU_WRITE),
verts, vertex_bytes);
pipe->winsys->buffer_unmap(pipe->winsys, vbuf);
/* tell pipe about the vertex buffer */
vbuffer.buffer = vbuf;
vbuffer.pitch = numAttribs * 4 * sizeof(float); /* vertex size */
vbuffer.buffer_offset = 0;
pipe->set_vertex_buffers(pipe, 1, &vbuffer);
/* tell pipe about the vertex attributes */
for (i = 0; i < numAttribs; i++) {
velements[i].src_offset = i * 4 * sizeof(GLfloat);
velements[i].vertex_buffer_index = 0;
velements[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
velements[i].nr_components = 4;
}
pipe->set_vertex_elements(pipe, numAttribs, velements);
/* draw */
pipe->draw_arrays(pipe, prim, 0, numVertex);
/* XXX: do one-time */
pipe_buffer_reference(pipe->winsys, &vbuf, NULL);
}
/**
* Set the (private) draw module's post-transformed vertex format when in
* GL_SELECT or GL_FEEDBACK mode or for glRasterPos.

7
src/mesa/state_tracker/st_draw.h
View file

@ -59,11 +59,4 @@ st_feedback_draw_vbo(GLcontext *ctx,
GLuint min_index,
GLuint max_index);
void
st_draw_vertices(GLcontext *ctx, unsigned prim,
unsigned numVertex, float *verts,
unsigned numAttribs,
GLboolean inClipCoords);
#endif