Mac: Add Cairo on Quartz support

This avoids the general hassles of OpenGL, which is deprecated on MacOS, and
Cairo apps look much nicer and more integrated this way.  As far as I can tell,
Cairo actually works best here out of all the platforms, the Windows and X11
backends aren't quite as smooth.

1 files changed, 0 insertions, 103 deletions

diff --git a/pugl/detail/cairo_gl.h b/pugl/detail/cairo_gl.h
deleted file mode 100644
index b6e8566..0000000
--- a/pugl/detail/cairo_gl.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
-  Copyright 2016-2019 David Robillard <http://drobilla.net>
-
-  Permission to use, copy, modify, and/or distribute this software for any
-  purpose with or without fee is hereby granted, provided that the above
-  copyright notice and this permission notice appear in all copies.
-
-  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-
-/**
-   @file cairo_gl.h Generic Cairo to OpenGL drawing support.
-*/
-
-#include "pugl/gl.h"
-
-#include <cairo.h>
-#include <stdint.h>
-#include <stdlib.h>
-
-typedef struct {
-	unsigned texture_id;
-	uint8_t* buffer;
-} PuglCairoGL;
-
-static cairo_surface_t*
-pugl_cairo_gl_create(PuglCairoGL* ctx, int width, int height, int bpp)
-{
-	free(ctx->buffer);
-	ctx->buffer = (uint8_t*)calloc(bpp * width * height, sizeof(uint8_t));
-	if (!ctx->buffer) {
-		return NULL;
-	}
-
-	glDeleteTextures(1, &ctx->texture_id);
-	glGenTextures(1, &ctx->texture_id);
-	glBindTexture(GL_TEXTURE_RECTANGLE_ARB, ctx->texture_id);
-	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
-
-	return cairo_image_surface_create_for_data(
-		ctx->buffer, CAIRO_FORMAT_ARGB32, width, height, bpp * width);
-}
-
-static void
-pugl_cairo_gl_free(PuglCairoGL* ctx)
-{
-	free(ctx->buffer);
-	ctx->buffer = NULL;
-}
-
-static void
-pugl_cairo_gl_configure(PuglCairoGL* ctx, int width, int height)
-{
-	(void)ctx;
-	(void)width;
-	(void)height;
-	glDisable(GL_DEPTH_TEST);
-	glEnable(GL_TEXTURE_RECTANGLE_ARB);
-
-	glMatrixMode(GL_PROJECTION);
-	glLoadIdentity();
-	glOrtho(-1.0f, 1.0f, -1.0f, 1.0f, -1.0f, 1.0f);
-}
-
-static void
-pugl_cairo_gl_draw(PuglCairoGL* ctx, int width, int height)
-{
-	glMatrixMode(GL_MODELVIEW);
-	glLoadIdentity();
-	glViewport(0, 0, width, height);
-
-	glPushMatrix();
-	glEnable(GL_TEXTURE_RECTANGLE_ARB);
-	glEnable(GL_TEXTURE_2D);
-
-	glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8,
-	             width, height, 0,
-	             GL_BGRA, GL_UNSIGNED_BYTE, ctx->buffer);
-
-	glBegin(GL_QUADS);
-	glTexCoord2f(0.0f, (GLfloat)height);
-	glVertex2f(-1.0f, -1.0f);
-
-	glTexCoord2f((GLfloat)width, (GLfloat)height);
-	glVertex2f(1.0f, -1.0f);
-
-	glTexCoord2f((GLfloat)width, 0.0f);
-	glVertex2f(1.0f, 1.0f);
-
-	glTexCoord2f(0.0f, 0.0f);
-	glVertex2f(-1.0f, 1.0f);
-	glEnd();
-
-	glDisable(GL_TEXTURE_2D);
-	glDisable(GL_TEXTURE_RECTANGLE_ARB);
-	glPopMatrix();
-}