[PATCH v6 03/12] Move compositor-wayland border drawing into gles2-renderer.

John Kåre Alsaker john.kare.alsaker at gmail.com
Tue Nov 13 10:10:20 PST 2012


---
 src/compositor-wayland.c | 160 +++-----------------------------------------
 src/compositor.h         |   3 +
 src/gles2-renderer.c     | 169 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 180 insertions(+), 152 deletions(-)

diff --git a/src/compositor-wayland.c b/src/compositor-wayland.c
index 1645f7d..4a70f99 100644
--- a/src/compositor-wayland.c
+++ b/src/compositor-wayland.c
@@ -36,8 +36,6 @@
 #include <wayland-client.h>
 #include <wayland-egl.h>
 
-#include <GLES2/gl2.h>
-#include <GLES2/gl2ext.h>
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
 
@@ -63,8 +61,6 @@ struct wayland_compositor {
 
 	struct {
 		int32_t top, bottom, left, right;
-		GLuint texture;
-		int32_t width, height;
 	} border;
 
 	struct wl_list input_list;
@@ -72,7 +68,6 @@ struct wayland_compositor {
 
 struct wayland_output {
 	struct weston_output	base;
-	struct wl_listener	frame_listener;
 	struct {
 		struct wl_surface	*surface;
 		struct wl_shell_surface	*shell_surface;
@@ -95,126 +90,11 @@ struct wayland_input {
 	struct wayland_output *output;
 };
 
-
-static int
-texture_border(struct wayland_output *output)
-{
-	struct wayland_compositor *c =
-		(struct wayland_compositor *) output->base.compositor;
-	GLfloat *d;
-	unsigned int *p;
-	int i, j, k, n;
-	GLfloat x[4], y[4], u[4], v[4];
-
-	x[0] = -c->border.left;
-	x[1] = 0;
-	x[2] = output->base.current->width;
-	x[3] = output->base.current->width + c->border.right;
-
-	y[0] = -c->border.top;
-	y[1] = 0;
-	y[2] = output->base.current->height;
-	y[3] = output->base.current->height + c->border.bottom;
-
-	u[0] = 0.0;
-	u[1] = (GLfloat) c->border.left / c->border.width;
-	u[2] = (GLfloat) (c->border.width - c->border.right) / c->border.width;
-	u[3] = 1.0;
-
-	v[0] = 0.0;
-	v[1] = (GLfloat) c->border.top / c->border.height;
-	v[2] = (GLfloat) (c->border.height - c->border.bottom) / c->border.height;
-	v[3] = 1.0;
-
-	n = 8;
-	d = wl_array_add(&c->base.vertices, n * 16 * sizeof *d);
-	p = wl_array_add(&c->base.indices, n * 6 * sizeof *p);
-
-	k = 0;
-	for (i = 0; i < 3; i++)
-		for (j = 0; j < 3; j++) {
-
-			if (i == 1 && j == 1)
-				continue;
-
-			d[ 0] = x[i];
-			d[ 1] = y[j];
-			d[ 2] = u[i];
-			d[ 3] = v[j];
-
-			d[ 4] = x[i];
-			d[ 5] = y[j + 1];
-			d[ 6] = u[i];
-			d[ 7] = v[j + 1];
-
-			d[ 8] = x[i + 1];
-			d[ 9] = y[j];
-			d[10] = u[i + 1];
-			d[11] = v[j];
-
-			d[12] = x[i + 1];
-			d[13] = y[j + 1];
-			d[14] = u[i + 1];
-			d[15] = v[j + 1];
-
-			p[0] = k + 0;
-			p[1] = k + 1;
-			p[2] = k + 2;
-			p[3] = k + 2;
-			p[4] = k + 1;
-			p[5] = k + 3;
-
-			d += 16;
-			p += 6;
-			k += 4;
-		}
-
-	return k / 4;
-}
-
-static void
-draw_border(struct wayland_output *output)
-{
-	struct wayland_compositor *c =
-		(struct wayland_compositor *) output->base.compositor;
-	struct weston_shader *shader = &c->base.texture_shader_rgba;
-	GLfloat *v;
-	int n;
-
-	glDisable(GL_BLEND);
-	glUseProgram(shader->program);
-	c->base.current_shader = shader;
-
-	glUniformMatrix4fv(shader->proj_uniform,
-			   1, GL_FALSE, output->base.matrix.d);
-
-	glUniform1i(shader->tex_uniforms[0], 0);
-	glUniform1f(shader->alpha_uniform, 1);
-
-	n = texture_border(output);
-
-	glBindTexture(GL_TEXTURE_2D, c->border.texture);
-
-	v = c->base.vertices.data;
-	glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]);
-	glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]);
-	glEnableVertexAttribArray(0);
-	glEnableVertexAttribArray(1);
-
-	glDrawElements(GL_TRIANGLES, n * 6,
-		       GL_UNSIGNED_INT, c->base.indices.data);
-
-	glDisableVertexAttribArray(1);
-	glDisableVertexAttribArray(0);
-
-	c->base.vertices.size = 0;
-	c->base.indices.size = 0;
-}
-
 static void
 create_border(struct wayland_compositor *c)
 {
 	pixman_image_t *image;
+	int32_t edges[4];
 
 	image = load_image(DATADIR "/weston/border.png");
 	if (!image) {
@@ -222,21 +102,14 @@ create_border(struct wayland_compositor *c)
 		return;
 	}
 
-	c->border.width = pixman_image_get_width(image);
-	c->border.height = pixman_image_get_height(image);
-
-	glGenTextures(1, &c->border.texture);
-	glBindTexture(GL_TEXTURE_2D, c->border.texture);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	edges[0] = c->border.left;
+	edges[1] = c->border.right;
+	edges[2] = c->border.top;
+	edges[3] = c->border.bottom;
 
-	glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
-		     c->border.width,
-		     c->border.height,
-		     0, GL_BGRA_EXT, GL_UNSIGNED_BYTE,
-		     pixman_image_get_data(image));
+	gles2_renderer_set_border(&c->base, pixman_image_get_width(image),
+		pixman_image_get_height(image),
+		pixman_image_get_data(image), edges);
 
 	pixman_image_unref(image);
 }
@@ -255,16 +128,6 @@ static const struct wl_callback_listener frame_listener = {
 };
 
 static void
-wayland_output_frame_notify(struct wl_listener *listener, void *data)
-{
-	struct wayland_output *output =
-		container_of(listener,
-			     struct wayland_output, frame_listener);
-
-	draw_border(output);
-}
-
-static void
 wayland_output_repaint(struct weston_output *output_base,
 		       pixman_region32_t *damage)
 {
@@ -316,10 +179,6 @@ wayland_compositor_create_output(struct wayland_compositor *c,
 	weston_output_init(&output->base, &c->base, 0, 0, width, height,
 						WL_OUTPUT_TRANSFORM_NORMAL);
 
-	output->base.border.top = c->border.top;
-	output->base.border.bottom = c->border.bottom;
-	output->base.border.left = c->border.left;
-	output->base.border.right = c->border.right;
 	output->base.make = "waywayland";
 	output->base.model = "none";
 
@@ -359,9 +218,6 @@ wayland_compositor_create_output(struct wayland_compositor *c,
 
 	wl_list_insert(c->base.output_list.prev, &output->base.link);
 
-	output->frame_listener.notify = wayland_output_frame_notify;
-	wl_signal_add(&output->base.frame_signal, &output->frame_listener);
-
 	return 0;
 
 cleanup_window:
diff --git a/src/compositor.h b/src/compositor.h
index 9d780cd..e4ba19c 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -851,6 +851,9 @@ gles2_renderer_output_destroy(struct weston_output *output);
 EGLSurface
 gles2_renderer_output_surface(struct weston_output *output);
 void
+gles2_renderer_set_border(struct weston_compositor *ec, int32_t width, int32_t height, void *data,
+			  int32_t *edges);
+void
 gles2_renderer_destroy(struct weston_compositor *ec);
 
 int
diff --git a/src/gles2-renderer.c b/src/gles2-renderer.c
index 0f1873d..818a1a3 100644
--- a/src/gles2-renderer.c
+++ b/src/gles2-renderer.c
@@ -42,6 +42,12 @@ struct gles2_renderer {
 	EGLDisplay egl_display;
 	EGLContext egl_context;
 	EGLConfig egl_config;
+
+	struct {
+		int32_t top, bottom, left, right;
+		GLuint texture;
+		int32_t width, height;
+	} border;
 };
 
 static inline struct gles2_output_state *
@@ -722,6 +728,123 @@ repaint_surfaces(struct weston_output *output, pixman_region32_t *damage)
 			draw_surface(surface, output, damage);
 }
 
+
+static int
+texture_border(struct weston_output *output)
+{
+	struct weston_compositor *ec = output->compositor;
+	struct gles2_renderer *gr = get_renderer(ec);
+	GLfloat *d;
+	unsigned int *p;
+	int i, j, k, n;
+	GLfloat x[4], y[4], u[4], v[4];
+
+	x[0] = -gr->border.left;
+	x[1] = 0;
+	x[2] = output->current->width;
+	x[3] = output->current->width + gr->border.right;
+
+	y[0] = -gr->border.top;
+	y[1] = 0;
+	y[2] = output->current->height;
+	y[3] = output->current->height + gr->border.bottom;
+
+	u[0] = 0.0;
+	u[1] = (GLfloat) gr->border.left / gr->border.width;
+	u[2] = (GLfloat) (gr->border.width - gr->border.right) / gr->border.width;
+	u[3] = 1.0;
+
+	v[0] = 0.0;
+	v[1] = (GLfloat) gr->border.top / gr->border.height;
+	v[2] = (GLfloat) (gr->border.height - gr->border.bottom) / gr->border.height;
+	v[3] = 1.0;
+
+	n = 8;
+	d = wl_array_add(&ec->vertices, n * 16 * sizeof *d);
+	p = wl_array_add(&ec->indices, n * 6 * sizeof *p);
+
+	k = 0;
+	for (i = 0; i < 3; i++)
+		for (j = 0; j < 3; j++) {
+
+			if (i == 1 && j == 1)
+				continue;
+
+			d[ 0] = x[i];
+			d[ 1] = y[j];
+			d[ 2] = u[i];
+			d[ 3] = v[j];
+
+			d[ 4] = x[i];
+			d[ 5] = y[j + 1];
+			d[ 6] = u[i];
+			d[ 7] = v[j + 1];
+
+			d[ 8] = x[i + 1];
+			d[ 9] = y[j];
+			d[10] = u[i + 1];
+			d[11] = v[j];
+
+			d[12] = x[i + 1];
+			d[13] = y[j + 1];
+			d[14] = u[i + 1];
+			d[15] = v[j + 1];
+
+			p[0] = k + 0;
+			p[1] = k + 1;
+			p[2] = k + 2;
+			p[3] = k + 2;
+			p[4] = k + 1;
+			p[5] = k + 3;
+
+			d += 16;
+			p += 6;
+			k += 4;
+		}
+
+	return k / 4;
+}
+
+static void
+draw_border(struct weston_output *output)
+{
+	struct weston_compositor *ec = output->compositor;
+	struct gles2_renderer *gr = get_renderer(ec);
+	struct weston_shader *shader = &ec->texture_shader_rgba;
+	GLfloat *v;
+	int n;
+
+	glDisable(GL_BLEND);
+	glUseProgram(shader->program);
+	ec->current_shader = shader;
+
+	glUniformMatrix4fv(shader->proj_uniform,
+			   1, GL_FALSE, output->matrix.d);
+
+	glUniform1i(shader->tex_uniforms[0], 0);
+	glUniform1f(shader->alpha_uniform, 1);
+
+	n = texture_border(output);
+
+	glActiveTexture(GL_TEXTURE0);
+	glBindTexture(GL_TEXTURE_2D, gr->border.texture);
+
+	v = ec->vertices.data;
+	glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]);
+	glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]);
+	glEnableVertexAttribArray(0);
+	glEnableVertexAttribArray(1);
+
+	glDrawElements(GL_TRIANGLES, n * 6,
+		       GL_UNSIGNED_INT, ec->indices.data);
+
+	glDisableVertexAttribArray(1);
+	glDisableVertexAttribArray(0);
+
+	ec->vertices.size = 0;
+	ec->indices.size = 0;
+}
+
 static void
 gles2_renderer_repaint_output(struct weston_output *output,
 			      pixman_region32_t *output_damage)
@@ -775,6 +898,9 @@ gles2_renderer_repaint_output(struct weston_output *output,
 
 	repaint_surfaces(output, output_damage);
 
+	if (gr->border.texture)
+		draw_border(output);
+
 	wl_signal_emit(&output->frame_signal, output);
 
 	ret = eglSwapBuffers(gr->egl_display, go->egl_surface);
@@ -1237,6 +1363,47 @@ log_egl_config_info(EGLDisplay egldpy, EGLConfig eglconfig)
 		weston_log_continue(" unknown\n");
 }
 
+static void
+output_apply_border(struct weston_output *output, struct gles2_renderer *gr)
+{
+	output->border.top = gr->border.top;
+	output->border.bottom = gr->border.bottom;
+	output->border.left = gr->border.left;
+	output->border.right = gr->border.right;
+}
+
+WL_EXPORT void
+gles2_renderer_set_border(struct weston_compositor *ec, int32_t width, int32_t height, void *data,
+			  int32_t *edges)
+{
+	struct gles2_renderer *gr = get_renderer(ec);
+	struct weston_output *output;
+
+	gr->border.left = edges[0];
+	gr->border.right = edges[1];
+	gr->border.top = edges[2];
+	gr->border.bottom = edges[3];
+
+	gr->border.width = width;
+	gr->border.height = height;
+
+	glGenTextures(1, &gr->border.texture);
+	glBindTexture(GL_TEXTURE_2D, gr->border.texture);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
+		     width,
+		     height,
+		     0, GL_BGRA_EXT, GL_UNSIGNED_BYTE,
+		     data);
+
+	wl_list_for_each(output, &ec->output_list, link)
+		output_apply_border(output, gr);
+}
+
 static int
 gles2_renderer_setup(struct weston_compositor *ec, EGLSurface egl_surface);
 
@@ -1270,6 +1437,8 @@ gles2_renderer_output_create(struct weston_output *output,
 
 	output->renderer_state = go;
 
+	output_apply_border(output, gr);
+
 	return 0;
 }
 
-- 
1.8.0



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