@@ -455,6 +455,9 @@ ui/shader/%-frag.h: $(SRC_PATH)/ui/shader/%.frag $(SRC_PATH)/scripts/shaderinclu
perl $(SRC_PATH)/scripts/shaderinclude.pl $< > $@,\
" FRAG $@")
+ui/console-gl.o: $(SRC_PATH)/ui/console-gl.c \
+ ui/shader/texture-blit-vert.h ui/shader/texture-blit-frag.h
+
# documentation
MAKEINFO=makeinfo
MAKEINFOFLAGS=--no-headers --no-split --number-sections
@@ -3142,7 +3142,7 @@ else
fi
if test "$opengl" != "no" ; then
- opengl_pkgs="gl"
+ opengl_pkgs="gl glesv2"
if $pkg_config $opengl_pkgs x11 && test "$have_glx" = "yes"; then
opengl_cflags="$($pkg_config --cflags $opengl_pkgs) $x11_cflags"
opengl_libs="$($pkg_config --libs $opengl_pkgs) $x11_libs"
@@ -9,6 +9,11 @@
#include "qapi-types.h"
#include "qapi/error.h"
+#ifdef CONFIG_OPENGL
+# include <GLES2/gl2.h>
+# include <GLES2/gl2ext.h>
+#endif
+
/* keyboard/mouse support */
#define MOUSE_EVENT_LBUTTON 0x01
@@ -117,6 +122,11 @@ struct DisplaySurface {
pixman_format_code_t format;
pixman_image_t *image;
uint8_t flags;
+#ifdef CONFIG_OPENGL
+ GLenum glformat;
+ GLenum gltype;
+ GLuint texture;
+#endif
};
typedef struct QemuUIInfo {
@@ -322,6 +332,27 @@ void qemu_console_copy(QemuConsole *con, int src_x, int src_y,
int dst_x, int dst_y, int w, int h);
DisplaySurface *qemu_console_surface(QemuConsole *con);
+/* console-gl.c */
+typedef struct ConsoleGLState ConsoleGLState;
+#ifdef CONFIG_OPENGL
+ConsoleGLState *console_gl_init_context(void);
+void console_gl_fini_context(ConsoleGLState *gls);
+bool console_gl_check_format(DisplayChangeListener *dcl,
+ pixman_format_code_t format);
+void surface_gl_create_texture(ConsoleGLState *gls,
+ DisplaySurface *surface);
+void surface_gl_update_texture(ConsoleGLState *gls,
+ DisplaySurface *surface,
+ int x, int y, int w, int h);
+void surface_gl_render_texture(ConsoleGLState *gls,
+ DisplaySurface *surface);
+void surface_gl_destroy_texture(ConsoleGLState *gls,
+ DisplaySurface *surface);
+void surface_gl_setup_viewport(ConsoleGLState *gls,
+ DisplaySurface *surface,
+ int ww, int wh);
+#endif
+
/* sdl.c */
void sdl_display_init(DisplayState *ds, int full_screen, int no_frame);
@@ -3,6 +3,8 @@
# include <GLES2/gl2ext.h>
#endif
+void qemu_gl_run_texture_blit(GLint texture_blit_prog);
+
GLuint qemu_gl_create_compile_shader(GLenum type, const GLchar *src);
GLuint qemu_gl_create_link_program(GLuint vert, GLuint frag);
GLuint qemu_gl_create_compile_link_program(const GLchar *vert_src,
@@ -26,9 +26,12 @@ sdl.mo-cflags := $(SDL_CFLAGS)
ifeq ($(CONFIG_OPENGL),y)
common-obj-y += shader.o
+common-obj-y += console-gl.o
endif
gtk.o-cflags := $(GTK_CFLAGS) $(VTE_CFLAGS)
shader.o-cflags += $(OPENGL_CFLAGS)
+console-gl.o-cflags += $(OPENGL_CFLAGS)
shader.o-libs += $(OPENGL_LIBS)
+console-gl.o-libs += $(OPENGL_LIBS)
new file mode 100644
@@ -0,0 +1,168 @@
+/*
+ * QEMU graphical console -- opengl helper bits
+ *
+ * Copyright (c) 2014 Red Hat
+ *
+ * Authors:
+ * Gerd Hoffmann <kraxel@redhat.com>
+ *
+ * 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, sublicense, 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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 "qemu-common.h"
+#include "ui/console.h"
+#include "ui/shader.h"
+
+#include "shader/texture-blit-vert.h"
+#include "shader/texture-blit-frag.h"
+
+struct ConsoleGLState {
+ GLint texture_blit_prog;
+};
+
+/* ---------------------------------------------------------------------- */
+
+ConsoleGLState *console_gl_init_context(void)
+{
+ ConsoleGLState *gls = g_new0(ConsoleGLState, 1);
+
+ gls->texture_blit_prog = qemu_gl_create_compile_link_program
+ (texture_blit_vert_src, texture_blit_frag_src);
+ if (!gls->texture_blit_prog) {
+ exit(1);
+ }
+
+ return gls;
+}
+
+void console_gl_fini_context(ConsoleGLState *gls)
+{
+ if (!gls) {
+ return;
+ }
+ g_free(gls);
+}
+
+bool console_gl_check_format(DisplayChangeListener *dcl,
+ pixman_format_code_t format)
+{
+ switch (format) {
+ case PIXMAN_BE_b8g8r8x8:
+ case PIXMAN_BE_b8g8r8a8:
+ case PIXMAN_r5g6b5:
+ return true;
+ default:
+ return false;
+ }
+}
+
+void surface_gl_create_texture(ConsoleGLState *gls,
+ DisplaySurface *surface)
+{
+ assert(gls);
+ assert(surface_stride(surface) % surface_bytes_per_pixel(surface) == 0);
+
+ switch (surface->format) {
+ case PIXMAN_BE_b8g8r8x8:
+ case PIXMAN_BE_b8g8r8a8:
+ surface->glformat = GL_BGRA_EXT;
+ surface->gltype = GL_UNSIGNED_BYTE;
+ break;
+ case PIXMAN_r5g6b5:
+ surface->glformat = GL_RGB;
+ surface->gltype = GL_UNSIGNED_SHORT_5_6_5;
+ break;
+ default:
+ g_assert_not_reached();
+ }
+
+ glGenTextures(1, &surface->texture);
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, surface->texture);
+ glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT,
+ surface_stride(surface) / surface_bytes_per_pixel(surface));
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
+ surface_width(surface),
+ surface_height(surface),
+ 0, surface->glformat, surface->gltype,
+ surface_data(surface));
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+}
+
+void surface_gl_update_texture(ConsoleGLState *gls,
+ DisplaySurface *surface,
+ int x, int y, int w, int h)
+{
+ uint8_t *data = (void *)surface_data(surface);
+
+ assert(gls);
+
+ glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT,
+ surface_stride(surface) / surface_bytes_per_pixel(surface));
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ x, y, w, h,
+ surface->glformat, surface->gltype,
+ data + surface_stride(surface) * y
+ + surface_bytes_per_pixel(surface) * x);
+}
+
+void surface_gl_render_texture(ConsoleGLState *gls,
+ DisplaySurface *surface)
+{
+ assert(gls);
+
+ glClearColor(0.1f, 0.1f, 0.1f, 0.0f);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ qemu_gl_run_texture_blit(gls->texture_blit_prog);
+}
+
+void surface_gl_destroy_texture(ConsoleGLState *gls,
+ DisplaySurface *surface)
+{
+ if (!surface || !surface->texture) {
+ return;
+ }
+ glDeleteTextures(1, &surface->texture);
+ surface->texture = 0;
+}
+
+void surface_gl_setup_viewport(ConsoleGLState *gls,
+ DisplaySurface *surface,
+ int ww, int wh)
+{
+ int gw, gh, stripe;
+ float sw, sh;
+
+ assert(gls);
+
+ gw = surface_width(surface);
+ gh = surface_height(surface);
+
+ sw = (float)ww/gw;
+ sh = (float)wh/gh;
+ if (sw < sh) {
+ stripe = wh - wh*sw/sh;
+ glViewport(0, stripe / 2, ww, wh - stripe);
+ } else {
+ stripe = ww - ww*sh/sw;
+ glViewport(stripe / 2, 0, ww - stripe, wh);
+ }
+}
@@ -29,6 +29,25 @@
/* ---------------------------------------------------------------------- */
+void qemu_gl_run_texture_blit(GLint texture_blit_prog)
+{
+ GLfloat in_position[] = {
+ -1, -1,
+ 1, -1,
+ -1, 1,
+ 1, 1,
+ };
+ GLint l_position;
+
+ glUseProgram(texture_blit_prog);
+ l_position = glGetAttribLocation(texture_blit_prog, "in_position");
+ glVertexAttribPointer(l_position, 2, GL_FLOAT, GL_FALSE, 0, in_position);
+ glEnableVertexAttribArray(l_position);
+ glDrawArrays(GL_TRIANGLE_STRIP, l_position, 4);
+}
+
+/* ---------------------------------------------------------------------- */
+
GLuint qemu_gl_create_compile_shader(GLenum type, const GLchar *src)
{
GLuint shader;
new file mode 100644
@@ -0,0 +1,10 @@
+
+#version 300 es
+
+uniform sampler2D image;
+in mediump vec2 ex_tex_coord;
+out mediump vec4 out_frag_color;
+
+void main(void) {
+ out_frag_color = texture(image, ex_tex_coord);
+}
new file mode 100644
@@ -0,0 +1,10 @@
+
+#version 300 es
+
+in vec2 in_position;
+out vec2 ex_tex_coord;
+
+void main(void) {
+ gl_Position = vec4(in_position, 0.0, 1.0);
+ ex_tex_coord = vec2(1.0 + in_position.x, 1.0 - in_position.y) * 0.5;
+}