diff options
Diffstat (limited to 'src/gallium/state_trackers/vega/api_masks.c')
| -rw-r--r-- | src/gallium/state_trackers/vega/api_masks.c | 373 |
1 files changed, 373 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/vega/api_masks.c b/src/gallium/state_trackers/vega/api_masks.c new file mode 100644 index 0000000000..4f9f3dae17 --- /dev/null +++ b/src/gallium/state_trackers/vega/api_masks.c @@ -0,0 +1,373 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE 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. + * + **************************************************************************/ + +#include "VG/openvg.h" + +#include "mask.h" +#include "renderer.h" + +#include "vg_context.h" +#include "pipe/p_context.h" +#include "pipe/p_inlines.h" +#include "pipe/internal/p_winsys_screen.h" /* for winsys->update_buffer */ + +#include "util/u_pack_color.h" +#include "util/u_draw_quad.h" +#include "util/u_memory.h" + + +#define DISABLE_1_1_MASKING 1 + +/** + * Draw a screen-aligned quadrilateral. + * Coords are window coords with y=0=bottom. These coords will be transformed + * by the vertex shader and viewport transform. + */ +static void +draw_clear_quad(struct vg_context *st, + float x0, float y0, float x1, float y1, float z, + const VGfloat color[4]) +{ + struct pipe_context *pipe = st->pipe; + struct pipe_buffer *buf; + VGuint i; + + /* positions */ + st->clear.vertices[0][0][0] = x0; + st->clear.vertices[0][0][1] = y0; + + st->clear.vertices[1][0][0] = x1; + st->clear.vertices[1][0][1] = y0; + + st->clear.vertices[2][0][0] = x1; + st->clear.vertices[2][0][1] = y1; + + st->clear.vertices[3][0][0] = x0; + st->clear.vertices[3][0][1] = y1; + + /* same for all verts: */ + for (i = 0; i < 4; i++) { + st->clear.vertices[i][0][2] = z; + st->clear.vertices[i][0][3] = 1.0; + st->clear.vertices[i][1][0] = color[0]; + st->clear.vertices[i][1][1] = color[1]; + st->clear.vertices[i][1][2] = color[2]; + st->clear.vertices[i][1][3] = color[3]; + } + + + /* put vertex data into vbuf */ + buf = pipe_user_buffer_create(pipe->screen, + st->clear.vertices, + sizeof(st->clear.vertices)); + + + /* draw */ + if (buf) { + util_draw_vertex_buffer(pipe, buf, 0, + PIPE_PRIM_TRIANGLE_FAN, + 4, /* verts */ + 2); /* attribs/vert */ + + pipe_buffer_reference(&buf, NULL); + } +} + +/** + * Do vgClear by drawing a quadrilateral. + */ +static void +clear_with_quad(struct vg_context *st, float x0, float y0, + float width, float height, const VGfloat clear_color[4]) +{ + VGfloat x1, y1; + + vg_validate_state(st); + + x1 = x0 + width; + y1 = y0 + height; + + /* + printf("%s %f,%f %f,%f\n", __FUNCTION__, + x0, y0, + x1, y1); + */ + + if (st->pipe->winsys && st->pipe->winsys->update_buffer) + st->pipe->winsys->update_buffer( st->pipe->winsys, + st->pipe->priv ); + + cso_save_blend(st->cso_context); + cso_save_rasterizer(st->cso_context); + cso_save_fragment_shader(st->cso_context); + cso_save_vertex_shader(st->cso_context); + + /* blend state: RGBA masking */ + { + struct pipe_blend_state blend; + memset(&blend, 0, sizeof(blend)); + blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE; + blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE; + blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO; + blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO; + blend.colormask |= PIPE_MASK_R; + blend.colormask |= PIPE_MASK_G; + blend.colormask |= PIPE_MASK_B; + blend.colormask |= PIPE_MASK_A; + cso_set_blend(st->cso_context, &blend); + } + + cso_set_rasterizer(st->cso_context, &st->clear.raster); + + cso_set_fragment_shader_handle(st->cso_context, st->clear.fs); + cso_set_vertex_shader_handle(st->cso_context, vg_clear_vs(st)); + + /* draw quad matching scissor rect (XXX verify coord round-off) */ + draw_clear_quad(st, x0, y0, x1, y1, 0, clear_color); + + /* Restore pipe state */ + cso_restore_blend(st->cso_context); + cso_restore_rasterizer(st->cso_context); + cso_restore_fragment_shader(st->cso_context); + cso_restore_vertex_shader(st->cso_context); +} + + +void vgMask(VGHandle mask, VGMaskOperation operation, + VGint x, VGint y, + VGint width, VGint height) +{ + struct vg_context *ctx = vg_current_context(); + + if (width <=0 || height <= 0) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return; + } + + if (operation < VG_CLEAR_MASK || operation > VG_SUBTRACT_MASK) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return; + } + + + vg_validate_state(ctx); + + if (operation == VG_CLEAR_MASK) { + mask_fill(x, y, width, height, 0.f); + } else if (operation == VG_FILL_MASK) { + mask_fill(x, y, width, height, 1.f); + } else if (vg_object_is_valid((void*)mask, VG_OBJECT_IMAGE)) { + struct vg_image *image = (struct vg_image *)mask; + mask_using_image(image, operation, x, y, width, height); + } else if (vg_object_is_valid((void*)mask, VG_OBJECT_MASK)) { +#if DISABLE_1_1_MASKING + return; +#else + struct vg_mask_layer *layer = (struct vg_mask_layer *)mask; + mask_using_layer(layer, operation, x, y, width, height); +#endif + } else { + vg_set_error(ctx, VG_BAD_HANDLE_ERROR); + } +} + +void vgClear(VGint x, VGint y, + VGint width, VGint height) +{ + struct vg_context *ctx = vg_current_context(); + struct pipe_framebuffer_state *fb; + + if (width <= 0 || height <= 0) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return; + } + + vg_validate_state(ctx); +#if 0 + debug_printf("Clear [%d, %d, %d, %d] with [%f, %f, %f, %f]\n", + x, y, width, height, + ctx->state.vg.clear_color[0], + ctx->state.vg.clear_color[1], + ctx->state.vg.clear_color[2], + ctx->state.vg.clear_color[3]); +#endif + + fb = &ctx->state.g3d.fb; + /* check for a whole surface clear */ + if (!ctx->state.vg.scissoring && + (x == 0 && y == 0 && width == fb->width && height == fb->height)) { + ctx->pipe->clear(ctx->pipe, PIPE_CLEAR_COLOR | PIPE_CLEAR_DEPTHSTENCIL, + ctx->state.vg.clear_color, 1., 0); + } else { + clear_with_quad(ctx, x, y, width, height, ctx->state.vg.clear_color); + } +} + + +#ifdef OPENVG_VERSION_1_1 + + +void vgRenderToMask(VGPath path, + VGbitfield paintModes, + VGMaskOperation operation) +{ + struct vg_context *ctx = vg_current_context(); + + if (path == VG_INVALID_HANDLE) { + vg_set_error(ctx, VG_BAD_HANDLE_ERROR); + return; + } + if (!paintModes || (paintModes&(~(VG_STROKE_PATH|VG_FILL_PATH)))) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return; + } + if (operation < VG_CLEAR_MASK || + operation > VG_SUBTRACT_MASK) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return; + } + if (!vg_object_is_valid((void*)path, VG_OBJECT_PATH)) { + vg_set_error(ctx, VG_BAD_HANDLE_ERROR); + return; + } + +#if DISABLE_1_1_MASKING + return; +#endif + + vg_validate_state(ctx); + + mask_render_to((struct path *)path, paintModes, operation); +} + +VGMaskLayer vgCreateMaskLayer(VGint width, VGint height) +{ + struct vg_context *ctx = vg_current_context(); + + if (width <= 0 || height <= 0 || + width > vgGeti(VG_MAX_IMAGE_WIDTH) || + height > vgGeti(VG_MAX_IMAGE_HEIGHT)) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return VG_INVALID_HANDLE; + } + + return (VGMaskLayer)mask_layer_create(width, height); +} + +void vgDestroyMaskLayer(VGMaskLayer maskLayer) +{ + struct vg_mask_layer *mask = 0; + struct vg_context *ctx = vg_current_context(); + + if (maskLayer == VG_INVALID_HANDLE) { + vg_set_error(ctx, VG_BAD_HANDLE_ERROR); + return; + } + if (!vg_object_is_valid((void*)maskLayer, VG_OBJECT_MASK)) { + vg_set_error(ctx, VG_BAD_HANDLE_ERROR); + return; + } + + mask = (struct vg_mask_layer *)maskLayer; + mask_layer_destroy(mask); +} + +void vgFillMaskLayer(VGMaskLayer maskLayer, + VGint x, VGint y, + VGint width, VGint height, + VGfloat value) +{ + struct vg_mask_layer *mask = 0; + struct vg_context *ctx = vg_current_context(); + + if (maskLayer == VG_INVALID_HANDLE) { + vg_set_error(ctx, VG_BAD_HANDLE_ERROR); + return; + } + + if (value < 0 || value > 1) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return; + } + + if (width <= 0 || height <= 0) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return; + } + if (x < 0 || y < 0 || (x + width) < 0 || (y + height) < 0) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return; + } + + if (!vg_object_is_valid((void*)maskLayer, VG_OBJECT_MASK)) { + vg_set_error(ctx, VG_BAD_HANDLE_ERROR); + return; + } + + mask = (struct vg_mask_layer*)maskLayer; + + if (x + width > mask_layer_width(mask) || + y + height > mask_layer_height(mask)) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return; + } + +#if DISABLE_1_1_MASKING + return; +#endif + mask_layer_fill(mask, x, y, width, height, value); +} + +void vgCopyMask(VGMaskLayer maskLayer, + VGint sx, VGint sy, + VGint dx, VGint dy, + VGint width, VGint height) +{ + struct vg_context *ctx = vg_current_context(); + struct vg_mask_layer *mask = 0; + + if (maskLayer == VG_INVALID_HANDLE) { + vg_set_error(ctx, VG_BAD_HANDLE_ERROR); + return; + } + if (width <= 0 || height <= 0) { + vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR); + return; + } + if (!vg_object_is_valid((void*)maskLayer, VG_OBJECT_MASK)) { + vg_set_error(ctx, VG_BAD_HANDLE_ERROR); + return; + } + +#if DISABLE_1_1_MASKING + return; +#endif + + mask = (struct vg_mask_layer*)maskLayer; + mask_copy(mask, sx, sy, dx, dy, width, height); +} + +#endif |