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authormarha <marha@users.sourceforge.net>2013-04-08 08:20:47 +0200
committermarha <marha@users.sourceforge.net>2013-04-08 08:20:47 +0200
commita4505330e3469b6956348812ff2d6c24f812a8ba (patch)
treecf2b88c771188580ab585f763d2e7a0309ecab26 /mesalib/src/gallium/auxiliary/hud/hud_context.c
parent44fb3db38c5148666f62c78e10fc37bb20ed5c5c (diff)
parent95fb19d661154ba8cfc6c793a0daa25657294b3b (diff)
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Merge remote-tracking branch 'origin/released'
* origin/released: fontconfig libXau mesa xserver xkeyboard-config git update 8 Apr 2013
Diffstat (limited to 'mesalib/src/gallium/auxiliary/hud/hud_context.c')
-rw-r--r--mesalib/src/gallium/auxiliary/hud/hud_context.c1078
1 files changed, 1078 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/hud/hud_context.c b/mesalib/src/gallium/auxiliary/hud/hud_context.c
new file mode 100644
index 000000000..983f05756
--- /dev/null
+++ b/mesalib/src/gallium/auxiliary/hud/hud_context.c
@@ -0,0 +1,1078 @@
+/**************************************************************************
+ *
+ * Copyright 2013 Marek Olšák <maraeo@gmail.com>
+ * 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 THE AUTHORS 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.
+ *
+ **************************************************************************/
+
+/* This head-up display module can draw transparent graphs on top of what
+ * the app is rendering, visualizing various data like framerate, cpu load,
+ * performance counters, etc. It can be hook up into any state tracker.
+ *
+ * The HUD is controlled with the GALLIUM_HUD environment variable.
+ * Set GALLIUM_HUD=help for more info.
+ */
+
+#include "hud/hud_context.h"
+#include "hud/hud_private.h"
+#include "hud/font.h"
+
+#include "cso_cache/cso_context.h"
+#include "util/u_draw_quad.h"
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "util/u_math.h"
+#include "util/u_simple_shaders.h"
+#include "util/u_string.h"
+#include "util/u_upload_mgr.h"
+#include "tgsi/tgsi_text.h"
+#include "tgsi/tgsi_dump.h"
+
+
+struct hud_context {
+ struct pipe_context *pipe;
+ struct cso_context *cso;
+ struct u_upload_mgr *uploader;
+
+ struct list_head pane_list;
+
+ /* states */
+ struct pipe_blend_state alpha_blend;
+ struct pipe_depth_stencil_alpha_state dsa;
+ void *fs_color, *fs_text;
+ struct pipe_rasterizer_state rasterizer;
+ void *vs;
+ struct pipe_vertex_element velems[2];
+
+ /* font */
+ struct util_font font;
+ struct pipe_sampler_view *font_sampler_view;
+ struct pipe_sampler_state font_sampler_state;
+
+ /* VS constant buffer */
+ struct {
+ float color[4];
+ float two_div_fb_width;
+ float two_div_fb_height;
+ float translate[2];
+ float scale[2];
+ float padding[2];
+ } constants;
+ struct pipe_constant_buffer constbuf;
+
+ unsigned fb_width, fb_height;
+
+ /* vertices for text and background drawing are accumulated here and then
+ * drawn all at once */
+ struct vertex_queue {
+ float *vertices;
+ struct pipe_vertex_buffer vbuf;
+ unsigned max_num_vertices;
+ unsigned num_vertices;
+ } text, bg, whitelines;
+
+ struct {
+ boolean query_pipeline_statistics;
+ } cap;
+};
+
+
+static void
+hud_draw_colored_prims(struct hud_context *hud, unsigned prim,
+ float *buffer, unsigned num_vertices,
+ float r, float g, float b, float a,
+ int xoffset, int yoffset, float yscale)
+{
+ struct cso_context *cso = hud->cso;
+ struct pipe_vertex_buffer vbuffer = {0};
+
+ hud->constants.color[0] = r;
+ hud->constants.color[1] = g;
+ hud->constants.color[2] = b;
+ hud->constants.color[3] = a;
+ hud->constants.translate[0] = xoffset;
+ hud->constants.translate[1] = yoffset;
+ hud->constants.scale[0] = 1;
+ hud->constants.scale[1] = yscale;
+ cso_set_constant_buffer(cso, PIPE_SHADER_VERTEX, 0, &hud->constbuf);
+
+ vbuffer.user_buffer = buffer;
+ vbuffer.stride = 2 * sizeof(float);
+
+ cso_set_vertex_buffers(cso, cso_get_aux_vertex_buffer_slot(cso),
+ 1, &vbuffer);
+ cso_set_fragment_shader_handle(hud->cso, hud->fs_color);
+ cso_draw_arrays(cso, prim, 0, num_vertices);
+}
+
+static void
+hud_draw_colored_quad(struct hud_context *hud, unsigned prim,
+ unsigned x1, unsigned y1, unsigned x2, unsigned y2,
+ float r, float g, float b, float a)
+{
+ float buffer[] = {
+ x1, y1,
+ x1, y2,
+ x2, y2,
+ x2, y1,
+ };
+
+ hud_draw_colored_prims(hud, prim, buffer, 4, r, g, b, a, 0, 0, 1);
+}
+
+static void
+hud_draw_background_quad(struct hud_context *hud,
+ unsigned x1, unsigned y1, unsigned x2, unsigned y2)
+{
+ float *vertices = hud->bg.vertices + hud->bg.num_vertices*2;
+ unsigned num = 0;
+
+ assert(hud->bg.num_vertices + 4 <= hud->bg.max_num_vertices);
+
+ vertices[num++] = x1;
+ vertices[num++] = y1;
+
+ vertices[num++] = x1;
+ vertices[num++] = y2;
+
+ vertices[num++] = x2;
+ vertices[num++] = y2;
+
+ vertices[num++] = x2;
+ vertices[num++] = y1;
+
+ hud->bg.num_vertices += num/2;
+}
+
+static void
+hud_draw_string(struct hud_context *hud, unsigned x, unsigned y,
+ const char *str, ...)
+{
+ char buf[256];
+ char *s = buf;
+ float *vertices = hud->text.vertices + hud->text.num_vertices*4;
+ unsigned num = 0;
+
+ va_list ap;
+ va_start(ap, str);
+ util_vsnprintf(buf, sizeof(buf), str, ap);
+ va_end(ap);
+
+ if (!*s)
+ return;
+
+ hud_draw_background_quad(hud,
+ x, y,
+ x + strlen(buf)*hud->font.glyph_width,
+ y + hud->font.glyph_height);
+
+ while (*s) {
+ unsigned x1 = x;
+ unsigned y1 = y;
+ unsigned x2 = x + hud->font.glyph_width;
+ unsigned y2 = y + hud->font.glyph_height;
+ unsigned tx1 = (*s % 16) * hud->font.glyph_width;
+ unsigned ty1 = (*s / 16) * hud->font.glyph_height;
+ unsigned tx2 = tx1 + hud->font.glyph_width;
+ unsigned ty2 = ty1 + hud->font.glyph_height;
+
+ if (*s == ' ') {
+ x += hud->font.glyph_width;
+ s++;
+ continue;
+ }
+
+ assert(hud->text.num_vertices + num/4 + 4 <= hud->text.max_num_vertices);
+
+ vertices[num++] = x1;
+ vertices[num++] = y1;
+ vertices[num++] = tx1;
+ vertices[num++] = ty1;
+
+ vertices[num++] = x1;
+ vertices[num++] = y2;
+ vertices[num++] = tx1;
+ vertices[num++] = ty2;
+
+ vertices[num++] = x2;
+ vertices[num++] = y2;
+ vertices[num++] = tx2;
+ vertices[num++] = ty2;
+
+ vertices[num++] = x2;
+ vertices[num++] = y1;
+ vertices[num++] = tx2;
+ vertices[num++] = ty1;
+
+ x += hud->font.glyph_width;
+ s++;
+ }
+
+ hud->text.num_vertices += num/4;
+}
+
+static void
+number_to_human_readable(uint64_t num, boolean is_in_bytes, char *out)
+{
+ static const char *byte_units[] =
+ {"", " KB", " MB", " GB", " TB", " PB", " EB"};
+ static const char *metric_units[] =
+ {"", " k", " M", " G", " T", " P", " E"};
+ const char **units = is_in_bytes ? byte_units : metric_units;
+ double divisor = is_in_bytes ? 1024 : 1000;
+ int unit = 0;
+ double d = num;
+
+ while (d > divisor) {
+ d /= divisor;
+ unit++;
+ }
+
+ if (d >= 100 || d == (int)d)
+ sprintf(out, "%.0f%s", d, units[unit]);
+ else if (d >= 10 || d*10 == (int)(d*10))
+ sprintf(out, "%.1f%s", d, units[unit]);
+ else
+ sprintf(out, "%.2f%s", d, units[unit]);
+}
+
+static void
+hud_draw_graph_line_strip(struct hud_context *hud, const struct hud_graph *gr,
+ unsigned xoffset, unsigned yoffset, float yscale)
+{
+ if (gr->num_vertices <= 1)
+ return;
+
+ assert(gr->index <= gr->num_vertices);
+
+ hud_draw_colored_prims(hud, PIPE_PRIM_LINE_STRIP,
+ gr->vertices, gr->index,
+ gr->color[0], gr->color[1], gr->color[2], 1,
+ xoffset + (gr->pane->max_num_vertices - gr->index - 1) * 2 - 1,
+ yoffset, yscale);
+
+ if (gr->num_vertices <= gr->index)
+ return;
+
+ hud_draw_colored_prims(hud, PIPE_PRIM_LINE_STRIP,
+ gr->vertices + gr->index*2,
+ gr->num_vertices - gr->index,
+ gr->color[0], gr->color[1], gr->color[2], 1,
+ xoffset - gr->index*2 - 1, yoffset, yscale);
+}
+
+static void
+hud_pane_accumulate_vertices(struct hud_context *hud,
+ const struct hud_pane *pane)
+{
+ struct hud_graph *gr;
+ float *line_verts = hud->whitelines.vertices + hud->whitelines.num_vertices*2;
+ unsigned i, num = 0;
+ char str[32];
+
+ /* draw background */
+ hud_draw_background_quad(hud,
+ pane->x1, pane->y1,
+ pane->x2, pane->y2);
+
+ /* draw numbers on the right-hand side */
+ for (i = 0; i < 6; i++) {
+ unsigned x = pane->x2 + 2;
+ unsigned y = pane->inner_y1 + pane->inner_height * (5 - i) / 5 -
+ hud->font.glyph_height / 2;
+
+ number_to_human_readable(pane->max_value * i / 5,
+ pane->uses_byte_units, str);
+ hud_draw_string(hud, x, y, str);
+ }
+
+ /* draw info below the pane */
+ i = 0;
+ LIST_FOR_EACH_ENTRY(gr, &pane->graph_list, head) {
+ unsigned x = pane->x1 + 2;
+ unsigned y = pane->y2 + 2 + i*hud->font.glyph_height;
+
+ number_to_human_readable(gr->current_value,
+ pane->uses_byte_units, str);
+ hud_draw_string(hud, x, y, " %s: %s", gr->name, str);
+ i++;
+ }
+
+ /* draw border */
+ assert(hud->whitelines.num_vertices + num/2 + 8 <= hud->whitelines.max_num_vertices);
+ line_verts[num++] = pane->x1;
+ line_verts[num++] = pane->y1;
+ line_verts[num++] = pane->x2;
+ line_verts[num++] = pane->y1;
+
+ line_verts[num++] = pane->x2;
+ line_verts[num++] = pane->y1;
+ line_verts[num++] = pane->x2;
+ line_verts[num++] = pane->y2;
+
+ line_verts[num++] = pane->x1;
+ line_verts[num++] = pane->y2;
+ line_verts[num++] = pane->x2;
+ line_verts[num++] = pane->y2;
+
+ line_verts[num++] = pane->x1;
+ line_verts[num++] = pane->y1;
+ line_verts[num++] = pane->x1;
+ line_verts[num++] = pane->y2;
+
+ /* draw horizontal lines inside the graph */
+ for (i = 0; i <= 5; i++) {
+ float y = round((pane->max_value * i / 5.0) * pane->yscale + pane->inner_y2);
+
+ assert(hud->whitelines.num_vertices + num/2 + 2 <= hud->whitelines.max_num_vertices);
+ line_verts[num++] = pane->x1;
+ line_verts[num++] = y;
+ line_verts[num++] = pane->x2;
+ line_verts[num++] = y;
+ }
+
+ hud->whitelines.num_vertices += num/2;
+}
+
+static void
+hud_pane_draw_colored_objects(struct hud_context *hud,
+ const struct hud_pane *pane)
+{
+ struct hud_graph *gr;
+ unsigned i;
+
+ /* draw colored quads below the pane */
+ i = 0;
+ LIST_FOR_EACH_ENTRY(gr, &pane->graph_list, head) {
+ unsigned x = pane->x1 + 2;
+ unsigned y = pane->y2 + 2 + i*hud->font.glyph_height;
+
+ hud_draw_colored_quad(hud, PIPE_PRIM_QUADS, x + 1, y + 1, x + 12, y + 13,
+ gr->color[0], gr->color[1], gr->color[2], 1);
+ i++;
+ }
+
+ /* draw the line strips */
+ LIST_FOR_EACH_ENTRY(gr, &pane->graph_list, head) {
+ hud_draw_graph_line_strip(hud, gr, pane->inner_x1, pane->inner_y2, pane->yscale);
+ }
+}
+
+static void
+hud_alloc_vertices(struct hud_context *hud, struct vertex_queue *v,
+ unsigned num_vertices, unsigned stride)
+{
+ v->num_vertices = 0;
+ v->max_num_vertices = num_vertices;
+ v->vbuf.stride = stride;
+ u_upload_alloc(hud->uploader, 0, v->vbuf.stride * v->max_num_vertices,
+ &v->vbuf.buffer_offset, &v->vbuf.buffer,
+ (void**)&v->vertices);
+}
+
+/**
+ * Draw the HUD to the texture \p tex.
+ * The texture is usually the back buffer being displayed.
+ */
+void
+hud_draw(struct hud_context *hud, struct pipe_resource *tex)
+{
+ struct cso_context *cso = hud->cso;
+ struct pipe_context *pipe = hud->pipe;
+ struct pipe_framebuffer_state fb;
+ struct pipe_surface surf_templ, *surf;
+ struct pipe_viewport_state viewport;
+ const struct pipe_sampler_state *sampler_states[] =
+ { &hud->font_sampler_state };
+ struct hud_pane *pane;
+ struct hud_graph *gr;
+
+ hud->fb_width = tex->width0;
+ hud->fb_height = tex->height0;
+ hud->constants.two_div_fb_width = 2.0 / hud->fb_width;
+ hud->constants.two_div_fb_height = 2.0 / hud->fb_height;
+
+ cso_save_framebuffer(cso);
+ cso_save_sample_mask(cso);
+ cso_save_blend(cso);
+ cso_save_depth_stencil_alpha(cso);
+ cso_save_fragment_shader(cso);
+ cso_save_sampler_views(cso, PIPE_SHADER_FRAGMENT);
+ cso_save_samplers(cso, PIPE_SHADER_FRAGMENT);
+ cso_save_rasterizer(cso);
+ cso_save_viewport(cso);
+ cso_save_stream_outputs(cso);
+ cso_save_geometry_shader(cso);
+ cso_save_vertex_shader(cso);
+ cso_save_vertex_elements(cso);
+ cso_save_aux_vertex_buffer_slot(cso);
+ cso_save_constant_buffer_slot0(cso, PIPE_SHADER_VERTEX);
+ cso_save_render_condition(cso);
+
+ /* set states */
+ memset(&surf_templ, 0, sizeof(surf_templ));
+ surf_templ.format = tex->format;
+ surf = pipe->create_surface(pipe, tex, &surf_templ);
+
+ memset(&fb, 0, sizeof(fb));
+ fb.nr_cbufs = 1;
+ fb.cbufs[0] = surf;
+ fb.zsbuf = NULL;
+ fb.width = hud->fb_width;
+ fb.height = hud->fb_height;
+
+ viewport.scale[0] = 0.5f * hud->fb_width;
+ viewport.scale[1] = 0.5f * hud->fb_height;
+ viewport.scale[2] = 1.0f;
+ viewport.scale[3] = 1.0f;
+ viewport.translate[0] = 0.5f * hud->fb_width;
+ viewport.translate[1] = 0.5f * hud->fb_height;
+ viewport.translate[2] = 0.0f;
+ viewport.translate[3] = 0.0f;
+
+ cso_set_framebuffer(cso, &fb);
+ cso_set_sample_mask(cso, ~0);
+ cso_set_blend(cso, &hud->alpha_blend);
+ cso_set_depth_stencil_alpha(cso, &hud->dsa);
+ cso_set_rasterizer(cso, &hud->rasterizer);
+ cso_set_viewport(cso, &viewport);
+ cso_set_stream_outputs(cso, 0, NULL, 0);
+ cso_set_geometry_shader_handle(cso, NULL);
+ cso_set_vertex_shader_handle(cso, hud->vs);
+ cso_set_vertex_elements(cso, 2, hud->velems);
+ cso_set_render_condition(cso, NULL, 0);
+ cso_set_sampler_views(cso, PIPE_SHADER_FRAGMENT, 1,
+ &hud->font_sampler_view);
+ cso_set_samplers(cso, PIPE_SHADER_FRAGMENT, 1, sampler_states);
+ cso_set_constant_buffer(cso, PIPE_SHADER_VERTEX, 0, &hud->constbuf);
+
+ /* prepare vertex buffers */
+ hud_alloc_vertices(hud, &hud->bg, 4 * 64, 2 * sizeof(float));
+ hud_alloc_vertices(hud, &hud->whitelines, 4 * 256, 2 * sizeof(float));
+ hud_alloc_vertices(hud, &hud->text, 4 * 512, 4 * sizeof(float));
+
+ /* prepare all graphs */
+ LIST_FOR_EACH_ENTRY(pane, &hud->pane_list, head) {
+ LIST_FOR_EACH_ENTRY(gr, &pane->graph_list, head) {
+ gr->query_new_value(gr);
+ }
+
+ hud_pane_accumulate_vertices(hud, pane);
+ }
+
+ /* unmap the uploader's vertex buffer before drawing */
+ u_upload_flush(hud->uploader);
+
+ /* draw accumulated vertices for background quads */
+ cso_set_fragment_shader_handle(hud->cso, hud->fs_color);
+
+ if (hud->bg.num_vertices) {
+ hud->constants.color[0] = 0;
+ hud->constants.color[1] = 0;
+ hud->constants.color[2] = 0;
+ hud->constants.color[3] = 0.666;
+ hud->constants.translate[0] = 0;
+ hud->constants.translate[1] = 0;
+ hud->constants.scale[0] = 1;
+ hud->constants.scale[1] = 1;
+
+ cso_set_constant_buffer(cso, PIPE_SHADER_VERTEX, 0, &hud->constbuf);
+ cso_set_vertex_buffers(cso, cso_get_aux_vertex_buffer_slot(cso), 1,
+ &hud->bg.vbuf);
+ cso_draw_arrays(cso, PIPE_PRIM_QUADS, 0, hud->bg.num_vertices);
+ }
+ pipe_resource_reference(&hud->bg.vbuf.buffer, NULL);
+
+ /* draw accumulated vertices for white lines */
+ hud->constants.color[0] = 1;
+ hud->constants.color[1] = 1;
+ hud->constants.color[2] = 1;
+ hud->constants.color[3] = 1;
+ hud->constants.translate[0] = 0;
+ hud->constants.translate[1] = 0;
+ hud->constants.scale[0] = 1;
+ hud->constants.scale[1] = 1;
+ cso_set_constant_buffer(cso, PIPE_SHADER_VERTEX, 0, &hud->constbuf);
+
+ if (hud->whitelines.num_vertices) {
+ cso_set_vertex_buffers(cso, cso_get_aux_vertex_buffer_slot(cso), 1,
+ &hud->whitelines.vbuf);
+ cso_set_fragment_shader_handle(hud->cso, hud->fs_color);
+ cso_draw_arrays(cso, PIPE_PRIM_LINES, 0, hud->whitelines.num_vertices);
+ }
+ pipe_resource_reference(&hud->whitelines.vbuf.buffer, NULL);
+
+ /* draw accumulated vertices for text */
+ if (hud->text.num_vertices) {
+ cso_set_vertex_buffers(cso, cso_get_aux_vertex_buffer_slot(cso), 1,
+ &hud->text.vbuf);
+ cso_set_fragment_shader_handle(hud->cso, hud->fs_text);
+ cso_draw_arrays(cso, PIPE_PRIM_QUADS, 0, hud->text.num_vertices);
+ }
+ pipe_resource_reference(&hud->text.vbuf.buffer, NULL);
+
+ /* draw the rest */
+ LIST_FOR_EACH_ENTRY(pane, &hud->pane_list, head) {
+ if (pane)
+ hud_pane_draw_colored_objects(hud, pane);
+ }
+
+ /* restore states */
+ cso_restore_framebuffer(cso);
+ cso_restore_sample_mask(cso);
+ cso_restore_blend(cso);
+ cso_restore_depth_stencil_alpha(cso);
+ cso_restore_fragment_shader(cso);
+ cso_restore_sampler_views(cso, PIPE_SHADER_FRAGMENT);
+ cso_restore_samplers(cso, PIPE_SHADER_FRAGMENT);
+ cso_restore_rasterizer(cso);
+ cso_restore_viewport(cso);
+ cso_restore_stream_outputs(cso);
+ cso_restore_geometry_shader(cso);
+ cso_restore_vertex_shader(cso);
+ cso_restore_vertex_elements(cso);
+ cso_restore_aux_vertex_buffer_slot(cso);
+ cso_restore_constant_buffer_slot0(cso, PIPE_SHADER_VERTEX);
+ cso_restore_render_condition(cso);
+
+ pipe_surface_reference(&surf, NULL);
+}
+
+/**
+ * Set the maximum value for the Y axis of the graph.
+ * This scales the graph accordingly.
+ */
+void
+hud_pane_set_max_value(struct hud_pane *pane, uint64_t value)
+{
+ pane->max_value = value;
+ pane->yscale = -(int)pane->inner_height / (double)pane->max_value;
+}
+
+static struct hud_pane *
+hud_pane_create(unsigned x1, unsigned y1, unsigned x2, unsigned y2,
+ unsigned period, uint64_t max_value)
+{
+ struct hud_pane *pane = CALLOC_STRUCT(hud_pane);
+
+ if (!pane)
+ return NULL;
+
+ pane->x1 = x1;
+ pane->y1 = y1;
+ pane->x2 = x2;
+ pane->y2 = y2;
+ pane->inner_x1 = x1 + 1;
+ pane->inner_x2 = x2 - 1;
+ pane->inner_y1 = y1 + 1;
+ pane->inner_y2 = y2 - 1;
+ pane->inner_width = pane->inner_x2 - pane->inner_x1;
+ pane->inner_height = pane->inner_y2 - pane->inner_y1;
+ pane->period = period;
+ pane->max_num_vertices = (x2 - x1 + 2) / 2;
+ hud_pane_set_max_value(pane, max_value);
+ LIST_INITHEAD(&pane->graph_list);
+ return pane;
+}
+
+/**
+ * Add a graph to an existing pane.
+ * One pane can contain multiple graphs over each other.
+ */
+void
+hud_pane_add_graph(struct hud_pane *pane, struct hud_graph *gr)
+{
+ static const float colors[][3] = {
+ {0, 1, 0},
+ {1, 0, 0},
+ {0, 1, 1},
+ {1, 0, 1},
+ {1, 1, 0},
+ {0.5, 0.5, 1},
+ {0.5, 0.5, 0.5},
+ };
+ char *name = gr->name;
+
+ /* replace '-' with a space */
+ while (*name) {
+ if (*name == '-')
+ *name = ' ';
+ name++;
+ }
+
+ assert(pane->num_graphs < Elements(colors));
+ gr->vertices = MALLOC(pane->max_num_vertices * sizeof(float) * 2);
+ gr->color[0] = colors[pane->num_graphs][0];
+ gr->color[1] = colors[pane->num_graphs][1];
+ gr->color[2] = colors[pane->num_graphs][2];
+ gr->pane = pane;
+ LIST_ADDTAIL(&gr->head, &pane->graph_list);
+ pane->num_graphs++;
+}
+
+void
+hud_graph_add_value(struct hud_graph *gr, uint64_t value)
+{
+ if (gr->index == gr->pane->max_num_vertices) {
+ gr->vertices[0] = 0;
+ gr->vertices[1] = gr->vertices[(gr->index-1)*2+1];
+ gr->index = 1;
+ }
+ gr->vertices[(gr->index)*2+0] = gr->index*2;
+ gr->vertices[(gr->index)*2+1] = value;
+ gr->index++;
+
+ if (gr->num_vertices < gr->pane->max_num_vertices) {
+ gr->num_vertices++;
+ }
+
+ gr->current_value = value;
+ if (value > gr->pane->max_value) {
+ hud_pane_set_max_value(gr->pane, value);
+ }
+}
+
+static void
+hud_graph_destroy(struct hud_graph *graph)
+{
+ FREE(graph->vertices);
+ if (graph->free_query_data)
+ graph->free_query_data(graph->query_data);
+ FREE(graph);
+}
+
+/**
+ * Read a string from the environment variable.
+ * The separators "+", ",", ":", and ";" terminate the string.
+ * Return the number of read characters.
+ */
+static int
+parse_string(const char *s, char *out)
+{
+ int i;
+
+ for (i = 0; *s && *s != '+' && *s != ',' && *s != ':' && *s != ';';
+ s++, out++, i++)
+ *out = *s;
+
+ *out = 0;
+
+ if (*s && !i)
+ fprintf(stderr, "gallium_hud: syntax error: unexpected '%c' (%i) while "
+ "parsing a string\n", *s, *s);
+ return i;
+}
+
+static boolean
+has_occlusion_query(struct pipe_screen *screen)
+{
+ return screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY) != 0;
+}
+
+static boolean
+has_streamout(struct pipe_screen *screen)
+{
+ return screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS) != 0;
+}
+
+static void
+hud_parse_env_var(struct hud_context *hud, const char *env)
+{
+ unsigned num, i;
+ char name[256], s[256];
+ struct hud_pane *pane = NULL;
+ unsigned x = 10, y = 10;
+ unsigned width = 251, height = 100;
+ unsigned period = 500 * 1000; /* default period (1/2 second) */
+ const char *period_env;
+
+ /*
+ * The GALLIUM_HUD_PERIOD env var sets the graph update rate.
+ * The env var is in seconds (a float).
+ * Zero means update after every frame.
+ */
+ period_env = getenv("GALLIUM_HUD_PERIOD");
+ if (period_env) {
+ float p = atof(period_env);
+ if (p >= 0.0) {
+ period = (unsigned) (p * 1000 * 1000);
+ }
+ }
+
+ while ((num = parse_string(env, name)) != 0) {
+ env += num;
+
+ if (!pane) {
+ pane = hud_pane_create(x, y, x + width, y + height, period, 10);
+ if (!pane)
+ return;
+ }
+
+ /* add a graph */
+ if (strcmp(name, "fps") == 0) {
+ hud_fps_graph_install(pane);
+ }
+ else if (strcmp(name, "cpu") == 0) {
+ hud_cpu_graph_install(pane, ALL_CPUS);
+ }
+ else if (sscanf(name, "cpu%u%s", &i, s) == 1) {
+ hud_cpu_graph_install(pane, i);
+ }
+ else if (strcmp(name, "samples-passed") == 0 &&
+ has_occlusion_query(hud->pipe->screen)) {
+ hud_pipe_query_install(pane, hud->pipe, "samples-passed",
+ PIPE_QUERY_OCCLUSION_COUNTER, 0, 0, FALSE);
+ }
+ else if (strcmp(name, "primitives-generated") == 0 &&
+ has_streamout(hud->pipe->screen)) {
+ hud_pipe_query_install(pane, hud->pipe, "primitives-generated",
+ PIPE_QUERY_PRIMITIVES_GENERATED, 0, 0, FALSE);
+ }
+ else if (strncmp(name, "pipeline-statistics-", 20) == 0) {
+ if (hud->cap.query_pipeline_statistics) {
+ static const char *pipeline_statistics_names[] =
+ {
+ "ia-vertices",
+ "ia-primitives",
+ "vs-invocations",
+ "gs-invocations",
+ "gs-primitives",
+ "clipper-invocations",
+ "clipper-primitives-generated",
+ "ps-invocations",
+ "hs-invocations",
+ "ds-invocations",
+ "cs-invocations"
+ };
+ for (i = 0; i < Elements(pipeline_statistics_names); ++i)
+ if (strcmp(&name[20], pipeline_statistics_names[i]) == 0)
+ break;
+ if (i < Elements(pipeline_statistics_names))
+ hud_pipe_query_install(pane, hud->pipe, &name[20],
+ PIPE_QUERY_PIPELINE_STATISTICS, i,
+ 0, FALSE);
+ else
+ fprintf(stderr, "gallium_hud: invalid pipeline-statistics-*\n");
+ } else {
+ fprintf(stderr, "gallium_hud: PIPE_QUERY_PIPELINE_STATISTICS "
+ "not supported by the driver\n");
+ }
+ }
+ else {
+ if (!hud_driver_query_install(pane, hud->pipe, name)){
+ fprintf(stderr, "gallium_hud: unknown driver query '%s'\n", name);
+ }
+ }
+
+ if (*env == ':') {
+ env++;
+
+ if (!pane) {
+ fprintf(stderr, "gallium_hud: syntax error: unexpected ':', "
+ "expected a name\n");
+ break;
+ }
+
+ num = parse_string(env, s);
+ env += num;
+
+ if (num && sscanf(s, "%u", &i) == 1) {
+ hud_pane_set_max_value(pane, i);
+ }
+ else {
+ fprintf(stderr, "gallium_hud: syntax error: unexpected '%c' (%i) "
+ "after ':'\n", *env, *env);
+ }
+ }
+
+ if (*env == 0)
+ break;
+
+ /* parse a separator */
+ switch (*env) {
+ case '+':
+ env++;
+ break;
+
+ case ',':
+ env++;
+ y += height + hud->font.glyph_height * (pane->num_graphs + 2);
+
+ if (pane && pane->num_graphs) {
+ LIST_ADDTAIL(&pane->head, &hud->pane_list);
+ pane = NULL;
+ }
+ break;
+
+ case ';':
+ env++;
+ y = 10;
+ x += width + hud->font.glyph_width * 7;
+
+ if (pane && pane->num_graphs) {
+ LIST_ADDTAIL(&pane->head, &hud->pane_list);
+ pane = NULL;
+ }
+ break;
+
+ default:
+ fprintf(stderr, "gallium_hud: syntax error: unexpected '%c'\n", *env);
+ }
+ }
+
+ if (pane) {
+ if (pane->num_graphs) {
+ LIST_ADDTAIL(&pane->head, &hud->pane_list);
+ }
+ else {
+ FREE(pane);
+ }
+ }
+}
+
+static void
+print_help(struct pipe_screen *screen)
+{
+ int i, num_queries, num_cpus = hud_get_num_cpus();
+
+ puts("Syntax: GALLIUM_HUD=name1[+name2][...][:value1][,nameI...][;nameJ...]");
+ puts("");
+ puts(" Names are identifiers of data sources which will be drawn as graphs");
+ puts(" in panes. Multiple graphs can be drawn in the same pane.");
+ puts(" There can be multiple panes placed in rows and columns.");
+ puts("");
+ puts(" '+' separates names which will share a pane.");
+ puts(" ':[value]' specifies the initial maximum value of the Y axis");
+ puts(" for the given pane.");
+ puts(" ',' creates a new pane below the last one.");
+ puts(" ';' creates a new pane at the top of the next column.");
+ puts("");
+ puts(" Example: GALLIUM_HUD=\"cpu,fps;primitives-generated\"");
+ puts("");
+ puts(" Available names:");
+ puts(" fps");
+ puts(" cpu");
+
+ for (i = 0; i < num_cpus; i++)
+ printf(" cpu%i\n", i);
+
+ if (has_occlusion_query(screen))
+ puts(" pixels-rendered");
+ if (has_streamout(screen))
+ puts(" primitives-generated");
+
+ if (screen->get_driver_query_info){
+ struct pipe_driver_query_info info;
+ num_queries = screen->get_driver_query_info(screen, 0, NULL);
+
+ for (i = 0; i < num_queries; i++){
+ screen->get_driver_query_info(screen, i, &info);
+ printf(" %s\n", info.name);
+ }
+ }
+
+ puts("");
+}
+
+struct hud_context *
+hud_create(struct pipe_context *pipe, struct cso_context *cso)
+{
+ struct hud_context *hud;
+ struct pipe_sampler_view view_templ;
+ unsigned i;
+ const char *env = debug_get_option("GALLIUM_HUD", NULL);
+
+ if (!env || !*env)
+ return NULL;
+
+ if (strcmp(env, "help") == 0) {
+ print_help(pipe->screen);
+ return NULL;
+ }
+
+ hud = CALLOC_STRUCT(hud_context);
+ if (!hud)
+ return NULL;
+
+ hud->pipe = pipe;
+ hud->cso = cso;
+ hud->uploader = u_upload_create(pipe, 256 * 1024, 16,
+ PIPE_BIND_VERTEX_BUFFER);
+
+ /* font */
+ if (!util_font_create(pipe, UTIL_FONT_FIXED_8X13, &hud->font)) {
+ u_upload_destroy(hud->uploader);
+ FREE(hud);
+ return NULL;
+ }
+
+ /* blend state */
+ hud->alpha_blend.rt[0].colormask = PIPE_MASK_RGBA;
+ hud->alpha_blend.rt[0].blend_enable = 1;
+ hud->alpha_blend.rt[0].rgb_func = PIPE_BLEND_ADD;
+ hud->alpha_blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_SRC_ALPHA;
+ hud->alpha_blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_INV_SRC_ALPHA;
+ hud->alpha_blend.rt[0].alpha_func = PIPE_BLEND_ADD;
+ hud->alpha_blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ZERO;
+ hud->alpha_blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE;
+
+ /* fragment shader */
+ hud->fs_color =
+ util_make_fragment_passthrough_shader(pipe,
+ TGSI_SEMANTIC_COLOR,
+ TGSI_INTERPOLATE_CONSTANT);
+
+ {
+ /* Read a texture and do .xxxx swizzling. */
+ static const char *fragment_shader_text = {
+ "FRAG\n"
+ "DCL IN[0], GENERIC[0], LINEAR\n"
+ "DCL SAMP[0]\n"
+ "DCL OUT[0], COLOR[0]\n"
+ "DCL TEMP[0]\n"
+
+ "TEX TEMP[0], IN[0], SAMP[0], RECT\n"
+ "MOV OUT[0], TEMP[0].xxxx\n"
+ "END\n"
+ };
+
+ struct tgsi_token tokens[1000];
+ struct pipe_shader_state state = {tokens};
+
+ if (!tgsi_text_translate(fragment_shader_text, tokens, Elements(tokens))) {
+ assert(0);
+ pipe_resource_reference(&hud->font.texture, NULL);
+ u_upload_destroy(hud->uploader);
+ FREE(hud);
+ return NULL;
+ }
+
+ hud->fs_text = pipe->create_fs_state(pipe, &state);
+ }
+
+ /* rasterizer */
+ hud->rasterizer.gl_rasterization_rules = 1;
+ hud->rasterizer.depth_clip = 1;
+ hud->rasterizer.line_width = 1;
+ hud->rasterizer.line_last_pixel = 1;
+
+ /* vertex shader */
+ {
+ static const char *vertex_shader_text = {
+ "VERT\n"
+ "DCL IN[0..1]\n"
+ "DCL OUT[0], POSITION\n"
+ "DCL OUT[1], COLOR[0]\n" /* color */
+ "DCL OUT[2], GENERIC[0]\n" /* texcoord */
+ /* [0] = color,
+ * [1] = (2/fb_width, 2/fb_height, xoffset, yoffset)
+ * [2] = (xscale, yscale, 0, 0) */
+ "DCL CONST[0..2]\n"
+ "DCL TEMP[0]\n"
+ "IMM[0] FLT32 { -1, 0, 0, 1 }\n"
+
+ /* v = in * (xscale, yscale) + (xoffset, yoffset) */
+ "MAD TEMP[0].xy, IN[0], CONST[2].xyyy, CONST[1].zwww\n"
+ /* pos = v * (2 / fb_width, 2 / fb_height) - (1, 1) */
+ "MAD OUT[0].xy, TEMP[0], CONST[1].xyyy, IMM[0].xxxx\n"
+ "MOV OUT[0].zw, IMM[0]\n"
+
+ "MOV OUT[1], CONST[0]\n"
+ "MOV OUT[2], IN[1]\n"
+ "END\n"
+ };
+
+ struct tgsi_token tokens[1000];
+ struct pipe_shader_state state = {tokens};
+
+ if (!tgsi_text_translate(vertex_shader_text, tokens, Elements(tokens))) {
+ assert(0);
+ pipe_resource_reference(&hud->font.texture, NULL);
+ u_upload_destroy(hud->uploader);
+ FREE(hud);
+ return NULL;
+ }
+
+ hud->vs = pipe->create_vs_state(pipe, &state);
+ }
+
+ /* vertex elements */
+ for (i = 0; i < 2; i++) {
+ hud->velems[i].src_offset = i * 2 * sizeof(float);
+ hud->velems[i].src_format = PIPE_FORMAT_R32G32_FLOAT;
+ hud->velems[i].vertex_buffer_index = cso_get_aux_vertex_buffer_slot(cso);
+ }
+
+ /* sampler view */
+ memset(&view_templ, 0, sizeof(view_templ));
+ view_templ.format = hud->font.texture->format;
+ view_templ.swizzle_r = PIPE_SWIZZLE_RED;
+ view_templ.swizzle_g = PIPE_SWIZZLE_GREEN;
+ view_templ.swizzle_b = PIPE_SWIZZLE_BLUE;
+ view_templ.swizzle_a = PIPE_SWIZZLE_ALPHA;
+ hud->font_sampler_view = pipe->create_sampler_view(pipe, hud->font.texture,
+ &view_templ);
+
+ /* sampler state (for font drawing) */
+ hud->font_sampler_state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ hud->font_sampler_state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ hud->font_sampler_state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ hud->font_sampler_state.normalized_coords = 0;
+
+ /* constants */
+ hud->constbuf.buffer_size = sizeof(hud->constants);
+ hud->constbuf.user_buffer = &hud->constants;
+
+ LIST_INITHEAD(&hud->pane_list);
+
+ hud->cap.query_pipeline_statistics =
+ pipe->screen->get_param(pipe->screen, PIPE_CAP_QUERY_PIPELINE_STATISTICS);
+
+ hud_parse_env_var(hud, env);
+ return hud;
+}
+
+void
+hud_destroy(struct hud_context *hud)
+{
+ struct pipe_context *pipe = hud->pipe;
+ struct hud_pane *pane, *pane_tmp;
+ struct hud_graph *graph, *graph_tmp;
+
+ LIST_FOR_EACH_ENTRY_SAFE(pane, pane_tmp, &hud->pane_list, head) {
+ LIST_FOR_EACH_ENTRY_SAFE(graph, graph_tmp, &pane->graph_list, head) {
+ LIST_DEL(&graph->head);
+ hud_graph_destroy(graph);
+ }
+ LIST_DEL(&pane->head);
+ FREE(pane);
+ }
+
+ pipe->delete_fs_state(pipe, hud->fs_color);
+ pipe->delete_fs_state(pipe, hud->fs_text);
+ pipe->delete_vs_state(pipe, hud->vs);
+ pipe_sampler_view_reference(&hud->font_sampler_view, NULL);
+ pipe_resource_reference(&hud->font.texture, NULL);
+ u_upload_destroy(hud->uploader);
+ FREE(hud);
+}