/**
* Setup vertex data for the textured quad we'll draw.
* Note: y=0=top
*
* FIXME: We should call util_map_texcoords2d_onto_cubemap
* for cubemaps.
*/
static unsigned
setup_vertex_data_tex(struct blit_state *ctx,
enum pipe_texture_target src_target,
unsigned src_face,
float x0, float y0, float x1, float y1,
float s0, float t0, float s1, float t1,
float z)
{
unsigned offset;
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[0][1][2] = 0; /*r*/
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[1][1][2] = 0; /*r*/
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][1][2] = 0;
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;
ctx->vertices[3][1][2] = 0;
if (src_target == PIPE_TEXTURE_CUBE ||
src_target == PIPE_TEXTURE_CUBE_ARRAY) {
/* Map cubemap texture coordinates inplace. */
const unsigned stride =
sizeof ctx->vertices[0] / sizeof ctx->vertices[0][0][0];
util_map_texcoords2d_onto_cubemap(src_face,
&ctx->vertices[0][1][0], stride,
&ctx->vertices[0][1][0], stride,
TRUE);
}
offset = get_next_slot(ctx);
if (ctx->vbuf) {
pipe_buffer_write_nooverlap(ctx->pipe, ctx->vbuf,
offset, sizeof(ctx->vertices), ctx->vertices);
}
return offset;
}
/**
* Setup vertex data for the textured quad we'll draw.
* Note: y=0=top
*/
static unsigned
setup_vertex_data_tex(struct blit_state *ctx,
float x0, float y0, float x1, float y1,
float s0, float t0, float s1, float t1,
float z)
{
unsigned offset;
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;
offset = get_next_slot( ctx );
if (ctx->vbuf) {
pipe_buffer_write_nooverlap(ctx->pipe, ctx->vbuf,
offset, sizeof(ctx->vertices), ctx->vertices);
}
return offset;
}
static unsigned
set_vertex_data(struct gen_mipmap_state *ctx,
enum pipe_texture_target tex_target,
uint face, float r)
{
unsigned offset;
/* vert[0].position */
ctx->vertices[0][0][0] = -1.0f; /*x*/
ctx->vertices[0][0][1] = -1.0f; /*y*/
/* vert[1].position */
ctx->vertices[1][0][0] = 1.0f;
ctx->vertices[1][0][1] = -1.0f;
/* vert[2].position */
ctx->vertices[2][0][0] = 1.0f;
ctx->vertices[2][0][1] = 1.0f;
/* vert[3].position */
ctx->vertices[3][0][0] = -1.0f;
ctx->vertices[3][0][1] = 1.0f;
/* Setup vertex texcoords. This is a little tricky for cube maps. */
if (tex_target == PIPE_TEXTURE_CUBE ||
tex_target == PIPE_TEXTURE_CUBE_ARRAY) {
static const float st[4][2] = {
{0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f}
};
util_map_texcoords2d_onto_cubemap(face, &st[0][0], 2,
&ctx->vertices[0][1][0], 8,
FALSE);
/* set the layer for cube arrays */
ctx->vertices[0][1][3] = r;
ctx->vertices[1][1][3] = r;
ctx->vertices[2][1][3] = r;
ctx->vertices[3][1][3] = r;
}
else if (tex_target == PIPE_TEXTURE_1D_ARRAY) {
/* 1D texture array */
ctx->vertices[0][1][0] = 0.0f; /*s*/
ctx->vertices[0][1][1] = r; /*t*/
ctx->vertices[0][1][2] = 0.0f; /*r*/
ctx->vertices[1][1][0] = 1.0f;
ctx->vertices[1][1][1] = r;
ctx->vertices[1][1][2] = 0.0f;
ctx->vertices[2][1][0] = 1.0f;
ctx->vertices[2][1][1] = r;
ctx->vertices[2][1][2] = 0.0f;
ctx->vertices[3][1][0] = 0.0f;
ctx->vertices[3][1][1] = r;
ctx->vertices[3][1][2] = 0.0f;
} else {
/* 1D/2D/3D/2D array */
ctx->vertices[0][1][0] = 0.0f; /*s*/
ctx->vertices[0][1][1] = 0.0f; /*t*/
ctx->vertices[0][1][2] = r; /*r*/
ctx->vertices[1][1][0] = 1.0f;
ctx->vertices[1][1][1] = 0.0f;
ctx->vertices[1][1][2] = r;
ctx->vertices[2][1][0] = 1.0f;
ctx->vertices[2][1][1] = 1.0f;
ctx->vertices[2][1][2] = r;
ctx->vertices[3][1][0] = 0.0f;
ctx->vertices[3][1][1] = 1.0f;
ctx->vertices[3][1][2] = r;
}
offset = get_next_slot( ctx );
pipe_buffer_write_nooverlap(ctx->pipe, ctx->vbuf,
offset, sizeof(ctx->vertices), ctx->vertices);
return offset;
}
